table of contents...5.2.3 13th january 2015 5.2.4 27th january 2015 5.2.5 29th january 2015 5.2.6...

User’s Manual

Digital Signal Processor

based Repeater

Base Line 5.4.0

Document Number: INS40821-3

Australian Patent No. 2010236015

US Patent No. 8,787,827

US Patent Application No. 62/567,405

DSPBR User’s Manual

Asia Pacific | EMEA | Americas 2

Company Overview

RFI has been serving the needs of the wireless communications market for over 40 years. First founded as a manufacturer of

antenna systems, RFI has grown to be a key player in the development, manufacturing and distribution of wireless

technology and energy products. Through our extensive network of resellers, systems integrators and retail outlets, RFI is a

key supplier to both industry and Government.

Our research and manufacturing facilities have talented people, sophisticated test equipment, state of the art software with

class leading manufacturing systems and techniques. Additionally, we have in place a quality management program which

is certified to ISO9001, environmental management system certification to ISO14001 and occupational health and safety

standard AS4801 giving you complete confidence in everything we do.

RFI’s products are truly innovative and as a result we are active around the globe taking our Australian designed and

manufactured products to key markets in Asia Pacific, the Americas and EMEA regions via offices ‘In-region’ in addition

to exporting directly to in excess of 50 countries.

One of RFI’s key principals is to remain totally customer focused as we recognise our future depends on the success of our

customers. We know that to be chosen as your supplier we must add value to your business and to achieve this we will work

hard to deliver the best product when and where you need it and back this up with the very best technical support available



Document Number INS 41978-1 Copyright @ 2014 RF Industries Pty Ltd

First Printing: 5th December 2014

Version Number

Version Date

5.2.0 4th September 2014

5.2.1 2nd December 2014

5.2.2 5.2.3

4th December 2014

5.2.3 13th January 2015

5.2.4 27th January 2015

5.2.5 29th January 2015

5.2.6 9th April 2015

5.2.7 9th September 2015

5.2.8 9th April 2016

5.3 24th April 2016

5.3.1 15th March 2017

5.3.2 06th October 2017

5.3.3 04th December 2017

5.3.4 05th March 2018

5.3.5 12th June 2018

5.4.0 19th July 2019

________________________________________________________________________ ___

Disclaimer

Product part numbering in photographs and drawings is accurate at the time of printing. Part number labels on RFI products

supersede part numbers given within this manual. Information is subject to change without notice



Notice The information contained in this document is subject to change without notice. R F Industries Pty. Ltd. makes no warranty of any kind regarding this material, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. RF Industries Pty Ltd shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance or use of the material. All information contained in this manual has been reviewed. RF Industries Pty Ltd accepts no liability for any omissions, errors or misconstrued information.

© 2014, RF Industries Pty Ltd. All rights reserved. Reproduction, adaptation or translation without prior written

permission is prohibited except as allowed under copyright laws.

For further information or help with this product contact your nearest RFI sales office or through the following;

Region USA EMEA ASIA PACIFIC

Sales email [email protected] [email protected] [email protected]

Tech Support [email protected] [email protected] [email protected]

Telephone Intl +1 (330) 486 0706 +44 1869 255 772 +61 7 3621 9400

Telephone local 330 486 0706 01869 255 772 1300 000 RFI

Fax Intl + 1 (330) 486 0705 - +61 2 9630 0844

Web rfiamericas.com rfiemea.com rfi.com.au

Note:

This device complies with Part 15 of the FCC Rules.

Operation is subject to the following two conditions;

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may cause

undesired operation.

The user is cautioned that changes and/or modifications not approved by the responsible party could

void the user’s authority to operate the equipment.

Note:

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in

accordance with the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area may cause harmful interference in which case the user

will be required to correct the interference at their own expense.



Table of Contents

Table of Contents..................................................................................................................................................................... 5 1. General 10 1.1 Table of Acronyms ...................................................................................................................................................... 10 1.2 Occupational Health & Safety / Work Health and Safety Warnings ............................................................................ 11 1.2.1 General Caution ................................................................................................................................................. 11 1.2.2 Earth Bonding .................................................................................................................................................... 12 1.2.3 High Temperatures ............................................................................................................................................. 12 1.3.4 High Voltage ...................................................................................................................................................... 12 1.3.5 Electro Static Discharge ..................................................................................................................................... 13 1.3.6 Laser Class 1 ...................................................................................................................................................... 13 2. Firmware Licence Agreement 14 3. Product Information 15 3.1 Applications ................................................................................................................................................................. 15 3.2 Product Overview ........................................................................................................................................................ 15 3.2.1 Sub-rack Frame .................................................................................................................................................. 15 3.2.2 DSP technology .................................................................................................................................................. 15 3.2.3 Modulation integrity ........................................................................................................................................... 16 3.2.4 Web browser configuration and alarm status reporting ...................................................................................... 16 3.2.5 Frequency Sub-Bands ........................................................................................................................................ 16 3.2.6 Modular Construction ........................................................................................................................................ 17 3.2.7 Module Types ..................................................................................................................................................... 17 3.2.8 Optional Internal uplink and downlink combining ............................................................................................. 18 3.2.9 External Duplexer .............................................................................................................................................. 18 3.3 Product Specifications ................................................................................................................................................. 20 3.3.1 Electrical Specifications (across all sub-bands) .................................................................................................. 20 3.3.2 Optional SFP Optical transceivers (used for inter-rack linking) ......................................................................... 21 3.3.3 Optional Internal Combiner (8-Way, full frequency agility) .............................................................................. 21 3.3.4 Typical AC / DC estimated power consumption figures (examples) .................................................................. 21 3.3.5 Mechanical ......................................................................................................................................................... 21 3.3.6 Weights (approximate examples) ....................................................................................................................... 21 3.3.7 Environmental .................................................................................................................................................... 22 3.3.8 Connectivity ....................................................................................................................................................... 22 3.3.9 Indicators – CSC Module LCD Display (front panel) ........................................................................................ 22 3.3.10 Approvals ........................................................................................................................................................... 22 3.3.11 Electrical Compliance ........................................................................................................................................ 22 4. Functional Description 23 4.1 General ......................................................................................................................................................................... 23 4.2 Sub-rack Frame ............................................................................................................................................................ 24 4.3 Modules ....................................................................................................................................................................... 26 4.3.1 PILM - PSU In-Let Module ............................................................................................................................... 26 4.3.2 PSU Module ....................................................................................................................................................... 26 4.3.3 CSC – Central Systems Controller Module ........................................................................................................ 28 4.3.4 Ref Gen + Aux – Reference Generator Module ................................................................................................. 29 4.3.4.1 Frequency Reference Disciplining options; ........................................................................................................ 30 4.3.4.2 Inserting the Multi-band cellular modem SIM card ........................................................................................... 31 4.3.4.3 SIM card Installation .......................................................................................................................................... 31 4.3.5 DSP – Digital Signal Processor Module ............................................................................................................. 32 4.3.6 RFFE – RF Front End Module ........................................................................................................................... 34 4.3.6.1 Channel Configuration programmability ............................................................................................................ 35 4.3.6.2 Typical hardware configuration examples .......................................................................................................... 35 4.3.7 RFBE – RF Back End Module ........................................................................................................................... 35 4.3.7.1 Channel Configuration programmability ............................................................................................................ 35 4.3.7.2 Typical hardware configuration examples .......................................................................................................... 35 4.3.7.3 Output power level settings ................................................................................................................................ 35 4.3.8 BPFM – Band Pass Filter Module ...................................................................................................................... 36 4.3.9 8-Way Internal Combiner Filter Unit ................................................................................................................. 36 4.3.10 DSPbR® Sub-Rack Frame Architecture ............................................................................................................ 39 4.3.10.1 Slot allocation architecture ................................................................................................................................. 39 4.3.10.2 Internal up link and or down link RFBE combining ........................................................................................... 40 4.3.11 DSPbR® Channel Expansion ............................................................................................................................. 40 5. Installation 41 5.1 Unpacking .................................................................................................................................................................... 41 5.2 Mechanical ................................................................................................................................................................... 41



5.3 Electrical and Earthing ................................................................................................................................................. 44 5.4 Lightning Protection .................................................................................................................................................... 46 5.4.1 The AC Mains .................................................................................................................................................... 46 5.4.2 RF Coaxial Cabling ............................................................................................................................................... 46 5.4.3 Ethernet connection ............................................................................................................................................ 46 5.5 Antenna to Antenna Isolation....................................................................................................................................... 46 5.6 External / Internal Alarm Interface .............................................................................................................................. 48 6. Start Up 50 6.1 CSC Front Panel Power On “ Active” and Alarm LED’s ............................................................................................. 50 6.2 LCD Display ................................................................................................................................................................. 51 6.2.1 Activating the selected Reset Menu: ........................................................................................................................ 52 6.3 General Connectivity ................................................................................................................................................... 53 6.3.1 Ethernet TCP/IP Connectivity ............................................................................................................................ 53 6.3.1.1 Web Browser GUI (Graphical User Interface)......................................................................................................... 53 6.3.1.2 IP Address .......................................................................................................................................................... 54 6.3.1.3 Determining the current Ethernet address settings ............................................................................................. 55 6.3.2 Log in Page ........................................................................................................................................................ 55 6.3.3 User Name and Password Levels ....................................................................................................................... 55 7. Configuration 56 7.1 GUI Tree ...................................................................................................................................................................... 57 7.2 Status Pages ................................................................................................................................................................. 58 7.2.1 Status - Current Hardware .................................................................................................................................. 58 7.2.2 Status – System Alarms (rack overview) & RSSI .............................................................................................. 59 7.2.2.1 Status -- Rack Alarms (rack specific detail) ..................................................................................................... 60 7.2.2.1.1 Status – Rack Alarms / External Alarms ............................................................................................................. 60 7.2.2.1.2 Status – Rack Alarms / Slot & Module Alarms .................................................................................................. 60 7.2.2.1.3 Status – Rack Alarms / Power Alarms: ............................................................................................................... 61 7.2.3 Status - Version Register .................................................................................................................................... 62 7.2.4 Status - Racks ..................................................................................................................................................... 64 7.2.5 Status – Channels ............................................................................................................................................... 66 7.2.6 Status – Channels RSSI ...................................................................................................................................... 68 7.2.7 Status - Communications .................................................................................................................................... 69 7.2.7.1 Ethernet .............................................................................................................................................................. 70 7.2.7.2 SNMP Trap Alarm Reporting ............................................................................................................................ 70 7.2.7.3 Modem Settings ................................................................................................................................................. 71 7.2.7.4 Alarm Reporting ................................................................................................................................................. 72 7.2.7.5 Serial Port ........................................................................................................................................................... 72 7.2.7.6 Email Alarms ..................................................................................................................................................... 72 7.2.8 Status - Trunking Extender ......................................................................................................................................... 73 7.2.8.1 Parameters .......................................................................................................................................................... 74 7.2.8.2 Primary Control Channel .................................................................................................................................... 74 7.2.8.3 Secondary Control Channel ................................................................................................................................ 74 7.2.8.4 Traffic Channels ................................................................................................................................................. 74 7.2.8.5 Advertised Adjacent Control Channels - Extender ............................................................................................. 74 7.2.9 Status - System ............................................................................................................................................................ 75 7.2.9.1 Racks .................................................................................................................................................................. 75 7.2.9.2 System ................................................................................................................................................................ 75 7.3 Configuration Pages ..................................................................................................................................................... 76 7.3.1 Configuration - Racks ........................................................................................................................................ 76 7.3.1.1 Single (Master) Rack Configuration ................................................................................................................... 76 7.3.1.2 Multi-Rack Configuration .................................................................................................................................. 77 7.3.2 Configuration – Channels ................................................................................................................................... 78 7.3.3 Configuration – Communications ...................................................................................................................... 80 7.3.3.1 Ethernet Settings ................................................................................................................................................... 81 7.3.3.2 Modem Settings ..................................................................................................................................................... 81 7.3.3.3 SNMP Trap Alarm Reporting ............................................................................................................................... 82 7.3.3.4 Alarm Reporting ..................................................................................................................................................... 82 7.3.3.5 Serial Port ............................................................................................................................................................... 82 7.3.3.6 Email Settings ......................................................................................................................................................... 82 7.3.4 Configuration – Trunking Extender ................................................................................................................... 83 7.3.4.1 Parameters .......................................................................................................................................................... 84 7.3.4.2 Primary Control Channel ..................................................................................... Error! Bookmark not defined. 7.3.4.3 Secondary Control Channel ................................................................................. Error! Bookmark not defined. 7.3.4.4 Traffic Channels .................................................................................................. Error! Bookmark not defined. 7.3.4.5 Advertised Adjacent Control Channels - Extender ............................................................................................. 84 7.3.5 Configuration – System ............................................................................................................................................... 85



7.3.6 Alarm Matrix ............................................................................................................................................................... 87 7.3.6.1 Alarm Matrix - Reference Generator Module .................................................................................................... 88 7.3.6.2 Alarm Matrix - RFFE Modules .......................................................................................................................... 89 7.3.6.3 Alarm Matrix - RFBE Modules .......................................................................................................................... 90 7.3.6.4 Alarm Matrix – DSP Module ............................................................................................................................. 91 7.3.6.5 Alarm Matrix – Fiber Expansion Module / Trunking Extender ......................................................................... 92 7.3.6.6 Alarm Matrix – PSU .......................................................................................................................................... 93 7.3.6.7 Alarm Matrix – Controller Module .................................................................................................................... 94 7.3.6.8 Alarm Matrix – External Alarms ........................................................................................................................ 95 7.3.6.9 Alarm Matrix – Periodic SNMP ......................................................................................................................... 96 7.4 Maintenance ................................................................................................................................................................. 97 7.4.1 Features Management......................................................................................................................................... 98 7.4.2 Files Management .............................................................................................................................................. 99 7.4.2.1 Uploading firmware .............................................................................................................................................. 100 7.4.2.2 Filter profiles ...................................................................................................................................................... 100 7.4.2.3 Downloading Configuration Files ....................................................................................................................... 100 7.4.2.4 Generate History Log ............................................................................................................................................ 101 7.4.3 User Management ............................................................................................................................................ 101 7.4.4 Test Alarms ...................................................................................................................................................... 102 7.4.5 Alarm Event Log .............................................................................................................................................. 103 7.4.6 System Checkpoint ........................................................................................................................................... 104 7.4.7 Restart .............................................................................................................................................................. 105 7.5 Logout ........................................................................................................................................................................ 105 7.6 HELP Screens ............................................................................................................................................................ 106 8. UPGRADING FIRMWARE 107 9. SNMP 120 9.1 Main Features: ........................................................................................................................................................... 120 9.2 Configuration Procedure: ........................................................................................................................................... 120 9.3 Testing SNMP trap: ................................................................................................................................................... 120 9.4 MIB Message Format: ............................................................................................................................................... 121 10. Multi-Carrier Power Amplifier (MCPA) 128 10.1 Multi-Carrier Power Amplifier (MCPA) Operation ................................................................................................... 128 10.2 Performance ............................................................................................................................................................... 128 10.3 Power levels per carrier.............................................................................................................................................. 128 10.4 Number of carriers ..................................................................................................................................................... 129 10.5 Configuring the MCPA Feature ................................................................................................................................. 130 11. Maintenance 134 11.1 Access ........................................................................................................................................................................ 134 11.2 Module Replacement ................................................................................................................................................. 134 11.2.1 Module replacement self-check ........................................................................................................................ 134 11.3 PSU replaceable fuses ................................................................................................................................................ 134 11.4 Fans and Fan filters .................................................................................................................................................... 134 11.5 RF input and output port identification ..................................................................................................................... 135 11.6 DSPbR® spare modules and ancillary equipment part numbers ................................................................................ 136 11.7 Recommended minimum spares listing ..................................................................................................................... 139



12. FAQ 140 12.1 Connectivity: .............................................................................................................................................................. 140 12.1.1 TCP/IP Ethernet connection ............................................................................................................................. 140 12.1.2 GUI Interface - Compatible Web browser programs ........................................................................................ 140 12.1.3 Master Slave DSPbR® configuration ............................................................................................................... 140 12.1.4 RS232 and USB Interface ................................................................................................................................ 140 12.1.5 SNMP Interface ................................................................................................................................................ 140 12.1.6 Cellular Modem ............................................................................................................................................... 140 12.1.7 Configuration via SMS ..................................................................................................................................... 140 12.2 DSPbR® Modules ..................................................................................................................................................... 141 12.2.1 General ............................................................................................................................................................. 141 12.2.2 RFFE ................................................................................................................................................................ 141 12.2.3 RFBE ................................................................................................................................................................ 141 12.2.4 Setting the Uplink and Downlink RFBE RF output power levels .................................................................... 141 12.2.5 Ref Gen + Aux ................................................................................................................................................. 142 12.2.6 External 10MHz clock reference: ..................................................................................................................... 142 12.2.7 CSC .................................................................................................................................................................. 142 12.2.8 DSPbR® Slot Architecture ............................................................................................................................... 143 12.2.9 Channel Gating Threshold Configuration Settings ........................................................................................... 144 12.2.10 DSPbR® Channel / Band Expandability .......................................................................................................... 144 12.2.11 Alarm Communication and Management ......................................................................................................... 145 12.2.12 Temperature Measurement and front mounted cooling fans: ........................................................................... 145 12.3 AC Mains Power Supply............................................................................................................................................ 146 12.4 DC Power Supply ...................................................................................................................................................... 147 12.5 Earthing...................................................................................................................................................................... 147 13. Appendices 148 14. Supporting Information 154 15. User Notes 155



Lists Of Figures and Tables

Figures

FIGURE 1: TYPICAL DSPBR® FUNCTIONAL BLOCK DIAGRAM 19 FIGURE 2:SUB-RACK FRAME MODULAR CONSTRUCTION 24 FIGURE 3:DSPBR® FRONT VIEW 25 FIGURE 4: DSPBR® REAR VIEW 25 FIGURE 5: REMOVAL OR REFITTING OF DSPBR® AC PSU 27 FIGURE 6: AC PSU FUSE LOCATION. 27 FIGURE 7: CSC CONTROLLER 28 FIGURE 8: REF GEN + AUX MODULE 29 FIGURE 9: REF GEN MODULE INTERFACE 31 FIGURE 10: DSP MODULE 32 FIGURE 11: DSP MODULE WITH 2 X FIBRE INTERFACE (FITTED TO BOTH SIDE A AND B) 33 FIGURE 12: DSP FIBRE PORT ORIENTATION. 33 FIGURE 13: DSP + FIBRE EXPANSION BOARD BLOCK SCHEMATIC. 34 FIGURE 14: RFFE + BPFM BOLTED TOGETHER 34 FIGURE 15: BOLTING BPFM ONTO RFFE OR RFBE 36 FIGURE 16: 2 X 8-WAY COMBINER FILTER BLOCKS MOUNTED INTO A DSPBR® SUB-RACK FRAME. 36 FIGURE 17: REMOVAL OF 8-WAY COMBINER FILTER BLOCK FROM DSPBR® SUB-RACK FRAME. 37 FIGURE 18: SLOT ALLOCATION ARCHITECTURE 39 FIGURE 19: DSPBR® DIMENSIONS FRONT VIEW 41 FIGURE 20: DSPBR® DIMENSIONS REAR VIEW 42 FIGURE 21:DSPBR® DIMENSIONS LEFT HAND SIDE VIEW 42 FIGURE 22: DSPBR® DIMENSIONS RIGHT HAND SIDE VIEW 42 FIGURE 23: DSPBR® DIMENSIONS TOP VIEW 43 FIGURE 24: DC 24 OR 48VDC PHOENIX HDFK 16A CONNECTOR TERMINATION BLOCK 44 FIGURE 25: AC MAINS TERMINATION IEC320-C14 SOCKET CONNECTOR (240VAC) AND M6 EARTHING STUD. 45 FIGURE 26: ANTENNA - TO - ANTENNA ISOLATION GRAPH. 47 FIGURE 27: EXTERNAL/ INTERNAL ALARM INTERFACE 48 FIGURE 28: ALARM INTERFACE CONNECTOR PINS. 48 FIGURE 29: CSC FRONT PANEL LCD DISPLAY, MODE BUTTON AND LED’S 50 FIGURE 31: EXAMPLE OF RFBE’S PERFORMANCE WITH 12 CARRIERS 129 FIGURE 32: EXAMPLES OF RFBE’S WITH 8 AND 4 CARRIERS RESPECTIVELY 129 FIGURE 33: FAN COVER REMOVAL 134 FIGURE 34: USER DEFINED YELLOW LABEL MARKING SYSTEM 135

Tables

TABLE 1: ACRONYMS 10 TABLE 2: DSPBR® GENERIC ELECTRICAL; MECHANICAL AND ENVIRONMENTAL SPECIFICATIONS 22 TABLE 3: 8-CH INTERNAL COMBINER FILTER, PER CARRIER MAX POWER SETTINGS 38 TABLE 4: DBM TO RF POWER IN WATTS - CROSS REFERENCE 38 TABLE 5: CONTROLLER LCD RESET AND CHECK POINT OPTIONS. 52 TABLE 6: DSPBR® MODULE AND PARTS TABLE 138 TABLE 7: RECOMMENDED MINIMUM SPARES LISTING 139



1. General

1.1 Table of Acronyms

ALC Automatic Level Control

BPF Band Pass Filter

BPFM Band Pass Filter Module

BTS Base Transceiver Station

CAN Controller Area Network

CAT5/6 Category 5 or 6 (Ethernet cable – standard wiring)

CLI Command Line Interface

CSC Central System Controller

DL Downlink

DSP Digital Signal Processor

DSPbR Digital Signal Processor based Repeater

ETSI European Telecommunication Standards Institute

GPS Global Positioning System

GUI Graphical User Interface

IF Intermediate Frequency

MS Mobile Station

PSU Power Supply Unit

PILM Power Inlet Module

PIP Peak Instantaneous Power

Ref Gen Reference Generator

Rev Revision

RF Radio Frequency

RFBE Radio Frequency Back End

RFFE Radio Frequency Front End

RSSI Receive Signal Strength Indication

RTC Real Time Clock

RU Rack Units

Rx Receiver

Tx Transmitter

T--Ex Trunking Extender

UL Uplink

VSWR Voltage Standing Wave Ratio

Table 1: Acronyms



1.2 Occupational Health & Safety / Work Health and Safety Warnings

1.2.1 General Caution

Only a suitably qualified person should be allowed to install and commission this equipment after comprehending and

becoming familiar with all the safety and installation instructions contained in this User’s Manual. It will be assumed that a

qualified person will have a fundamental knowledge of the objectives and use common sense where safety warnings are not

necessarily explicit.

The unit is heavy and appropriately considered a two-man lift. Handles are provided to the front of the equipment to assist in

removal of the DSPbR® from the packaging and during installation.

On unpacking the equipment, familiarise yourself with equipment, reading and following all warning labels attached to the

equipment. Please ensure that the warning labels are kept in a legible condition and replace if necessary.

Ensure all general, regional and site-specific installation and safety regulations are adhered to when working on high voltage

installations, as well as regulations covering use of tools and personal protective equipment.

It is the responsibility of the network operator or service provider to have in place and implemented a legally compliant

Occupational Health and Safety (OHS) / Work Health and Safety (WHS) law as applicable, detailing prevention measures to

avoid health hazards which may be associated with radiation from the antenna(s) connected to this equipment. Please ensure

familiarisation and compliance to country specific regulations on RF exposure.

Ensure all adjustable repeater settings comply with intended use and applicable National, State and Regional regulatory

requirements.

Ensure that access to this equipment is restricted to qualified personnel only.

There is no On/Off switch on the unit – it becomes active as soon as AC or DC power is connected via the provided AC

mains cable or DC power source.

Do not allow the DSPbR® or any associated equipment to become wet or to be subjected to a corrosive environment, humidity or

temperatures outside the specified operating ranges.

Do not operate the unit near any flammable substances or in a flammable atmosphere.

Ensure that all RF termination connectors are fully mated and hand tightened.

Use this equipment only for the purpose specified by RF Industries Pty Ltd. Do not carry out any modifications or attempt

any module repairs. All modules in this DSPbR® are not intended to be field repairable and should be returned to RF

Industries for service or repair.

When engaged in upgrading or maintaining the DSPbR, please note that the RF Front End and RF Back End modules are “Hot

Swappable” accessible from the rear of the sub-rack frame using a suitable module extraction tool. Should an upgrade or

maintenance require any further deconstruction or access to the equipment, the AC or DC power supply should be disconnected

and isolated.



1.2.2 Earth Bonding

An equipment earthing / grounding M6 threaded stud is provided at the rear of the sub-rack frame located on the PILM

(Power Inlet Line Module).

The DSPbR® must be adequately bonded to the common 19” rack earth/grounding connection point within the 19” rack

frame/cabinet using the M6 stud provided.

1.2.3 High Temperatures

Owing to probable power dissipation within the equipment, the exposed rear portion of the equipment may reach relatively

high temperatures.

Please take the necessary precautions when servicing or removing any RFBE modules, filters, transmitter combiners or

unscrewing any terminated RF coaxial cables.

1.3.4 High Voltage

The DSPbR® has been tested compliant to AS/NZS IEC 60950. When operated from an AC power source this unit complies

with the Australian AS/NZS 60950 equipment safety standard.

There is limited surge protection built into the PSU of the DSPbR, however additional site-specific lighting protection,

voltage surge protection and earth bonding may be required to reduce the risk of damage.

Regarding external antennas connected to the DSPbR, we recommend the use of adequate coaxial lighting protection and

earth bonding through grounding kits on the RF feeder cables prior to termination into the respective RF termination

connectors on the DSPbR® repeater.

AC or DC mains should also be afforded surge protection, along with the IP Ethernet connection into the repeater.



1.3.5 Electro Static Discharge

Although the modules and exposure of the interconnect sockets / pins have been designed to significantly reduce the risk of

electro static discharge (ESD), precautions must be observed during installation and maintenance to protect all the modules

within the equipment.

The Ref Gen + Aux module is not as protected as other modules for ease of access to the SIM Card holder. If removed this

module should be removed, handled and re-installed in an electro-static controlled environment and using equipment that is

purpose designed to reduce the risk of electrostatic discharge onto the module.

1.3.6 Laser Class 1

Where the DSPbR® is configured for use with connectivity using fiber optic cables, the Small Form Pluggable (SFP) Fiber

Optic Transceivers use Class 1 lasers which are inherently safe under reasonable conditions of operation.

We recommend that this DSPbR® User’s Manual is made available “on site” to maintenance personal who are required to

maintain and service the equipment.



2. Firmware Licence Agreement

This statement must be read in its entirety prior to the loading or use of the Firmware provided by RFI.

Introduction.

By loading any product related Firmware, you agree without reserve with all the conditions as detailed in this

Firmware License Agreement.

The term “Firmware” for the sake of this statement includes all software or firmware upgrades, either as a new installation,

revision, patches or upgrades. Any reference to software, for the purposes of this license agreement, will therefore be included in

the term Firmware.

RFI refers to the Australian registered company RF Industries Pty Ltd.

The copyright of all Firmware relating to this product remains the property in whole of RFI and is therefore protected by the

respective international copyright or trademark laws.

You agree that by using and or downloading any of the DSPBR® product specific Firmware, that you have fully understood and

agree to comply and be bound by the all of the conditional requirements as detailed in this Firmware License Agreement and

accept the disclaimer thereof.

RFI reserves the right to update and change, from time to time, any attribute, function, feature and in the main any content of the

Firmware and any documentation attributed and referenced to the Firmware underwritten by this Firmware License Agreement

without notice to existing users.

The use of this Firmware is non-exclusive and non-sub licensable, nor does it give the user the right to

re-sell, lease, loan, distribute, or transfer the Firmware nor the rights thereof.

This Firmware License Agreement grants or implies no right, title, or interest in any intellectual property owned or licensed by

RFI.

Support and Firmware Updates.

RFI may elect to provide you with customer support and/or Firmware upgrades, enhancements, or modifications for the RFI

Firmware at its sole discretion and may terminate such support at any time without notice to the user. RFI may change, suspend,

or discontinue any aspect of the Firmware at any time, including the availability of any Firmware feature, database, or content.

From time to time RFI may provide notice through the RFI web site of any available updates or Firmware revision downloads.

Fees.

RFI reserves the right to charge fees for upgrades or revisions of the applicable Firmware download.

Disclaimer.

Use of any Firmware enabling operation of the DSPBR® or providing support for the DSPBR® is at the user’s discretion and

risk. RFI will not be held responsible or liable for any damage or loss that results from the downloading and or use of the

Firmware or incompatibilities or other problems experienced as a result of any combination of operating system(s), firmware, or

software the user may use.

RFI will not be held responsible or liable for any inaccuracies, completeness or inadequacy regarding the Firmware as the basis

of the provision of the Firmware is on a “fit-for-purpose, best effort” approach.

RFI will not be liable to the user for claims and liabilities of any kind arising out of or in any way related to the use of the

Firmware by the user or any third party.

The failure of RFI to exercise or enforce any right or provision of this Firmware License Agreement shall not constitute a waiver

of such right or provision.



3. Product Information

3.1 Applications

The RF Industries DSPbR® (Digital Signal Processor based Repeater) is designed as a stand-alone or networked, multi-channel,

multi-band expandable rebroadcast repeater/booster used for extending RF coverage in either outdoor or numerous types of

indoor or below ground applications.

Fibre connectivity provides expandable connection between chassis where more than one DSPbR® chassis is required at a site to

accommodate the number of required channels in one band or across a number of bands.

Fibre connectivity facilitates master to slave or master to multiple slave topologies extending coverage wherever fibre

connectivity permits.

The DSPbR® is ideal for cost effective expansion of an RF network coverage boundary or to provide multi-site coverage

footprint from a single site infrastructure, reducing the need for large-scale site developments with dedicated backhauls.

3.2 Product Overview

The DSPbR® rebroadcasts RF carriers without demodulating the signal, providing modulation transparency, therefore not

interfering with the rebroadcast signal’s modulation integrity. The DSP platform provides selective channel bandwidth

adaptability ensuring spectrally clean transmission and rebroadcast of both analogue and most digital modulation schemes.

Adjustable per-channel, high power transmitter output power or in lower output power MCPA (Multiple Carrier PA) mode

enables this repeater platform to be highly versatile and adaptable for almost any RF network coverage scenario. The DSPbR® is

modular in design and upgradability providing the basis for a cost-effective future proof roadmap. The “on-board” GUI

(Graphical User Interface) provides the user with access to the configuration, status and alarming pages of the DSPbR® without

the need for additional software.

3.2.1 Sub-rack Frame

The DSPbR® is built into a standard 19” 4RU aluminium sub-rack frame with a depth of 440mm including top, bottom and side

covers. The respective mandatory and optional modules plug into a centrally located motherboard from the front and rear of the

frame. Slide rails are provided for each module to assist in correctly locating the motherboard.

Four 19” rack mount M6 fasteners mount the sub-rack into a standard 19” rack frame. Front mounted handles are provided of

ease of installation. The finish on the front of the DSPbR® is painted black and conforms to RFI front mounted panel layout

formats.

3.2.2 DSP technology

The DSPbR® uses Digital Signal Processing technology, replacing traditional fixed hardware used in IF filtering such as crystal

filters with software defined digital filtering providing flexibility and optimisation. When a migration of technology or

operational channel bandwidth is required this is simply achieved through a configuration change via the web-based browser

interface where several the specifications can be re-configured such as channel filter profile, uplink and downlink frequencies,

output power or gain. The DSP capability allows for up to 8 bi-directional channels in a single sub-rack frame. Up to six

individual configuration dependent bands can be accommodated, each band having a fixed bandwidth of 20MHz.

The frequency agility of the DSPbR® within the predetermined band of the respective RF module allows for either “off-air”

rebroadcast of the incoming frequency or translation of the incoming frequency to a different rebroadcast frequency across

several bands and channels.

The DSPbR® can be used for frequency shifting or bridging several channels to a second DSPbR® unit remotely sited from a

host BTS to extend the BTS frequencies without facing input to output isolation problems when broadcasting on the same

frequency. The major advantage in not having to rebroadcast “on frequency” is that the gain through the repeater can be

considerably increased and the cell extension afforded greater coverage and signal strength.



A flexible feature using this technology is the choice of setting receiver gating on a respective channel. This can be set to open

above a fixed dBm input level, or at a pre-determined level above a dynamic input noise level or simply disabled keeping the

receiver channel open.

3.2.3 Modulation integrity

The DSPbR® does not demodulate the rebroadcast signal and the modulated carrier integrity is left unchanged whether encrypted

or not, effectively allowing modulation scheme and multiplexing methodology transparency. A library of IF Filter profiles,

ensure optimised group delay characteristics in digital modulation schemes without compromising emission standards.

3.2.4 Web browser configuration and alarm status reporting

Customer specific repeater configuration is possible via two RJ45 IP Ethernet sockets from either the front or rear of the sub-

rack. This can be achieved either locally with the use of an Ethernet jumper cable or remotely, having connected the DSPbR® to

an IP Ethernet network.

Two levels of access are provided, which are user name and password protected. The first elementary level provides access to the

status screens only. The second level provides access to all screens, which include status, configuration, and maintenance

screens.

Entering the factory default IP address will bring up a log in screen and once the required level of user name and password has

been entered, the relevant screens will appear in the navigation menu.

Configurable channel specific settings include uplink and downlink channels, receive and rebroadcast frequencies across band or

in-band as required, selecting technology applicable channel bandwidth profiles, uplink and downlink RF output power levels,

uplink and downlink channel gain and optional styles of receiver gating.

Names or references can be allocated within specific naming fields within the GUI to input and output frequencies of the

respective uplinks and downlinks.

3.2.5 Frequency Sub-Bands

The DSPbR® Series repeater is designed for configuration in many of the PMR/LMR frequency bands, including VHF, UHF and

7/800MHz.

Frequency bands currently available include; 132-152MHz, 150-174MHz (20MHz sliding window), 403-420MHz, 410-430MHz,

430-450MHz, 450-470MHz, 470-490MHz, 480-500MHz, 500-520MHz, 746-766MHz, 786-806MHz, 805-825MHz and 850-

870MHz.

RF Industries may add or change the availability of frequency bands as part of our ongoing product development program.



3.2.6 Modular Construction

The DSPbR® hardware is modular in construction and designed to provide exceptional installation and channel expansion

efficiency, allowing hot-swappable hardware upgrades to increase the number of repeater channels up to a maximum of eight bi-

directional channels or up to 16 separate transmitters in a single 19” 4RU sub-rack frame.

The RFFE and RFBE modules are bolted to their respective BPF modules and slid into the mating connectors of the centrally

located motherboard via top and bottom mounted guide rails within the allocated slot and screw fastened into the sub-rack frame

using the module fastening facility.

3.2.7 Module Types

The DSPbR® uses the following module types;

• PILM - AC or 24V / 48V DC Power Inlet Module

• PSU - AC or 24V / 48V DC Power Supply Unit

• Chassis - with integral backplane

• CSC - Central System Controller

• DSP - Digital Signal Processor

• Ref Gen + Aux– Reference Generator + Auxiliary Module, includes GPS and Cellular Modem

• RFFE – RF Front End (band specific)

• RFBE – RF Back End (band specific)

• BPFM – Band Pass Filter Module (band specific, bolted to input of RFFE, and the output of RFBE modules)

• Cxxx-8 Combiner Filter Unit (band specific / optional)

Each RFFE and RFBE is limited to a 20MHz operating bandwidth. One RFFE can source received frequencies to a number of

RFBE’s. Each RFBE is capable of rebroadcasting channels with typical channel bandwidths of 12.5 or 25 kHz. Other channel

bandwidths can be provided upon request.

At UHF and 7/800MHz, band-specific BPFM’s connect directly onto the input of the RFFE modules, and also on the output of

the RFBE modules. The VHF sub-band RFFE and RFBE modules have a built in BP Filter Module and are therefore not

detachable. These BPFMs provide sub-band specific RF filtering for the respective RFFE modules’ inputs, and RFBE modules’

outputs.

An optional 8 channel internal combiner filter block replaces individual BPFM modules, bolting directly onto the respective “n”

quantity of RFBE modules it is to combine.

There are no internally fitted coaxial interconnect cables in the DSPbR. All modules are provided with guided slide fit and fasten

connectivity, with connectors between interconnected modules and the internal chassis backplane mating and being aligned by

the correct insertion of the modules in their chassis slide rail and corrected seated by the modules fastening screws being

tightened.

An RFFE module is partitioned into Side “A” and Side “B”. Two separate RFFE’s boards can therefore be accommodated within

a single RFFE module. Each RFFE regardless of band has both Sides fitting with RFFE boards. Although “same band” RFFE’s

are available as standard, fitted to both sides of the module, there are options that have been made available where each side may

be fitted with a different band. Each RFFE requires a corresponding frequency band compatible BPFM.

As with the RFFE, each RFBE and corresponding BPFM module is internally partitioned into Side “A” and Side “B”, effectively

providing two RFBE’s per RFBE module. The BPFM must correspond in terms of frequency compatibility with the RFBE.

Although “same band” RFBE’s are available as standard, fitted to both sides of the module, there are options that have been

made available where each side may be fitted with a different band.

A bi-directional four channel, single band, non-frequency translating DSPbR® will likely use the RFFE board in side “A” of the

RFFE module for the uplink and the RFFE board in side “B” for the downlink. The full 20 MHz bandwidth of both RFFE boards

will be converted from analogue to digital and individual channels are processed through their respective IF filter profiles and

then converted back to analogue and fed to the allocated uplink and downlink boards within the nominated RFBE modules.



The Ref Gen + Aux/GPS module is primarily purposed to provide a reference signal against which the DSPbR® VCO is

disciplined. A reference signal can be sourced via the on-board GPS receiver or from a 10MHz external reference. A multiband

cellular modem is fitted as standard onto the Ref Gen+ Aux board to facilitate SMS alarm notification and act as a cellular

wireless link to the DSPbR® via a PPP session providing IP Ethernet access. This assumes that the DSPbR® cell modem

terminal has been provided a fixed IP address in the cellular network.

The DSP module is partitioned into Side “A” and Side “B” boards, populated according to the number of channels and bands that

require processing. There are two primary options, either 4 Channel 2 Band or 8 Channel 3 Band with a fibre expansion board

option to connect to other DSPbR® chassis.

The CSC module controls and manages all processing requirements to all modules within the DSP and is essentially the internal

communications hub. The CSC is fitted with non-serviceable lithium ion batteries and can send primary power fail alarms via

the Ethernet ports and Cell modem.

3.2.8 Optional Internal uplink and downlink combining

The downlink and uplink RFBE modules can be internally combined using an optional 8-Way combiner filter block that requires

the real-estate of 4 slots. The condition is that all combined channels are in the same 20MHz portion of the band and are

orientated in the same direction. For example, the combined channels are either configured for uplink or downlink, but not

mixed. When the internal combiner is fitted, the BPFM’s are removed.

The 8-Way combiner type allows for complete frequency agility within the RFBE sub-band of 20MHz.

As the carriers are combined to feed into a single output the configured output powers may be auto adjusted internally so as not

to increase the risk of breakdown in the output filter due to Peak Instantaneous Voltage breakdown. There is a table with the

adjusted figures for your reference in the specification section of this User’s Manual.

The 8-Way Internal combiner filter unit is available in most bands. As an alternative, external combining can be provided outside

of the sub-rack frame.

8-Way combiner filter blocks are currently available in UHF and 7/800MHz frequency sub-bands. The VHF sub-band does not

have detachable band pass filter modules and is therefore not available with an 8-Way internal combining option.

Where external combining is the preferred option, the individual RF outputs are accessible at the rear of the DSPbR® via the

BPFM’s that are fitted to the respective RFBE’s. This allows for various options of combiners and or separate RFBEs to be fitted

to a DSPbR® chassis and optimised for the frequency combinations in use.

3.2.9 External Duplexer

Where uplink or downlink paths require combining into a single feeder network or antenna, an external duplexer will be required.

RF Industries have a number of 19” rack mountable duplexer types and options available for most frequency, power and

bandwidth requirements.

There is currently no internal duplexer option available for the DSPbR, but a diverse range of duplexer models is available from

RFI and may be fitted externally to the DSPbR® to cater for the many frequencies, Tx-Rx passbands, and applications into which

the DSPbR® may be deployed.



Figure 1: Typical DSPbR® Functional Block Diagram



3.3 Product Specifications

3.3.1 Electrical Specifications (across all sub-bands)

Model Reference DSPbR® Series

Frequency Ranges 132-152MHz

150-174MHz (20MHz sliding Window)

403-420MHz

410-430MHz

430-450MHz

450-470MHz

470-490MHz

480-500MHz

500-520MHz

746-766MHz

786-806MHz

805-825MHz

850-870MHz

Max number of channels – single 4RU chassis

8 bi-directional (1 to 2 bands)

7 bi-directional (3 bands)

16 uni-directional (1 to 2 bands)

14 uni-directional (3 bands)

12 bi-directional (MCPA Mode)

24 uni-directional (MCPA Mode)

Max number of channels/bands/ chassis’ Up to 96 Channels and up to 64 band modules

- distributed across up to 8 Chassis

Synthesizer Offset (Channel Steps) 1.25kHz

Mode of Operation Full Duplex, translating or non-translating

Channel Bandwidth 12.5kHz and 25kHz

Receiver Sensitivity -116dBm (typical)

Adjacent Channel Selectivity NB 60dB / WB 70dB

Intermodulation Immunity > 70dB

Adjustable Gain Range (1dB steps) UL & DL 70-135dB

Adjustable downlink / uplink Output Power (1dB increments).

VHF/UHF Bands.

Refer to Table 3 for maximum power limits with internal combiner

fitted.

+10dBm (10mW) to +46dBm (35W)

Note: reduced output level for channels

passing APCO P25 Phase 2 and TETRA

waveforms.

Adjustable downlink / uplink Output Power (1dB increments).

700/800MHz Bands.

Refer to Table 3 for maximum power limits with internal combiner

fitted.

+10dBm (10mW) to +43dBm (20W)

Note: reduced output level for channels

passing APCO P25 Phase 2 and TETRA

waveforms.

Output ALC range ~100dB (channel independent)

Noise Figure (no ALC) < 6dB

Tx Spurious and Harmonic Emissions < -30dBm @ maximum output

PA Class of operation AB

Frequency Translating Error < 10 Hz, 0 Hz typical

System Impedance 50 Ohm

Max Input power - no damage (RFFE and RFBE ports) +10dBm

Ref Gen – GPS antenna feed voltage + 6V

Power Supply Options 24VDC, 48VDC & 110-240VAC

Power Consumption (typical) at 25ºC Ambient Up to 1500W (depending on configuration)



3.3.2 Optional SFP Optical transceivers (used for inter-rack linking)

Multi-mode SFP LC Duplex 1 band 400m, 2 bands 200m

Single Mode SFP LC Duplex – Medium Power 1 band 60km, 2 bands 50km

Single Mode SFP LC Duplex – High Power 1 band 100km, 2 bands 85km

3.3.3 Optional Internal Combiner (8-Way, full frequency agility)

Typical Insertion Loss 11.5dB

Maximum input power per channel Refer to Table 3.

Frequency Ranges Available for UHF, 700MHz and 800MHz.

VHF requires the use of external combining.

3.3.4 Typical AC / DC estimated power consumption figures (examples)

Configuration @ 25ºC @ 60 ºC (Full fans)

1 x Bi-directional (UL 43dBm & DL + 46dBm) channels

DL 35% UL 35% / DL 35% UL Gated

148W / 135W 340W / 326W

2 x Bi-directional (UL 43dBm & DL + 46dBm) channels


219W / 196W 411W / 387W

4 Bi-directional (UL 43dBm & DL + 46dBm) channels


366W / 316W 558W / 508W



527W / 451W 705W / 629W



667W / 573W 855W / 751W

3.3.5 Mechanical

Sub-rack Frame Height 4RU Height (179mm)

Sub-rack Frame Depth (including connectors) 440mm

RFFE input and RFBE output termination connectors N (F)

Ref Gen – GPS Antenna termination connector SMA (F)

Ref Gen – Cell Modem Antenna Termination connectors SMA (F)

Ref Gen – Ext Ref Input and Output termination connectors SMA (F)

AC Power supply socket types 110VAC IEC320-C19 socket

240VAC IEC320-C14 socket

DC Power supply terminal (24 & 48VDC Versions) Phoenix HDFK 16A

Finish – 19” Rack Front Panel Black

3.3.6 Weights (approximate examples)

2 bi-directional (UL & DL) channels no internal combining 19.7kgs



8 bi-directional (UL & DL) channels no internal combining 35kgs

For DL or UL Internal combining only (2-8Ch) add - 1.25kgs

For DL and UL Internal combining (2-8Ch) add - 2.5kgs

Weight (fully configured 8 bi-directional channels) + UL and DL internal

combining

37.5kgs



3.3.7 Environmental

IP Rating IP20 (Indoor use only)

Active Cooling (fan speed variable with temperature) 2 x 119x119x34mm fans

Operational Temperature Range -30° C to +60° C

3.3.8 Connectivity

Ethernet connection points 1 x front - CSC module

1 x rear - Ref Gen module

USB Type “B” connector port 1 x front panel - CSC module

RS232 DB9 connector – socket 1 x front panel - CSC module

Internal / External Alarm DB15 connector - socket 1 x rear panel - Ref Gen module

RJ11 CAN Bus interconnect 1 x front panel - CSC (Universal)

GPS +6VDC antenna termination connector SMA (F) – Ref Gen module

10MHz clock – internal reference generator (GEN MON) SMA (F) - Ref Gen module

10MHz clock – external reference (EXT REF) SMA (F) – Ref Gen module

Cellular modem antenna connectors SMA (F) – Ref Gen module

Wireless (cell modem) GSM/GPRS/UMTS/4G

3.3.9 Indicators – CSC Module LCD Display (front panel)

LCD - Screen sequences with each successive mode-button press.

RFI Logo

Current IP Address/

Subnet/Gateway/MAC address

Date and Time

PSU rail voltage / batt voltage

Modules detected and enabled

Module temperatures

RSSI level per channel

Alarms

LCD – Reset and Check Point option activated by depressing mode button

for 5 seconds and then sequencing.

Normal reset

Factory reset

Factory + IP reset

Latest Check Point

Power on Green LED CSC front panel

Major Alarm Alarm 1 Red LED

Minor Alarm Alarm 2 Red LED

Ethernet traffic on RJ45 Ethernet Port Flashing Orange/Green LED’s

3.3.10 Approvals

Approvals Australia - ACMA

USA – FCC (Part 22 & Part 90)

3.3.11 Electrical Compliance

Electrical Compliance (AC Mains PSU) AS/NZS 60950-1

Table 2: DSPbR® Generic Electrical, Mechanical and Environmental specifications



4. Functional Description

4.1 General

The DSPbR® Series repeater is based on the use of a DSP software defined radio (SDR) engine that provides significant

configuration flexibility in defining parameters including; channel specific filter profiles, channel characteristic parameters

configuration (frequency, gain, output power, etc) and alarm monitoring and reporting.

Built on a modular platform for ease of upgradability, configuration and options, and maintenance flexibility, the DSPbR®

provides users with a flexible and cost-effective rebroadcast platform. This platform is capable of multiple frequency operation,

in one or more frequency bands, with frequency non-translating or translating operation across a wide range of RF gains and

output powers. Most parameters are user-configurable in both the uplink and downlink directions – and on a channel-by-channel

basis. The DSPbR® is truly ‘RF-transparent’, passing all the RF signal’s modulation content - including voice and data, sub-

audible, signalling, and encryption - and for a diverse range of analogue and digital modulation protocols.

The DSPbR’s ability to be deployed into many different configurations leverages on the DSPbR® architecture’s ability to

converge one or more RF Front Ends (uplink or downlink ‘receivers’) and RF Back Ends (uplink or downlink ‘transmitters’) into

a range of single and multi-band solutions, all within a single DSPbR® chassis - or expanding into additional chassis connected

together with optical fibre.

A single DSPbR® chassis can be daisy chained to other chassis’, allowing additional chassis to be added, expanding the number

of channels and cross band capability. When an additional chassis is added to an existing unit, the first chassis will be nominated

as the “Master” unit and the other chassis’ as “Slave” units.

The DSPbR’s system configuration is conveniently user-programmed using an integral webserver Graphical User Interface

(GUI), which is accessible via front and rear panel RJ45 Ethernet ports.

Alarm reporting can be configured to be communicated from the DSPbR® via SMS, SNMP v2C (Northbound traps) or SMTP

(Email). Alarm status is also monitored and visible using the GUI. In addition, major and minor alarms may be presented via

two relays with isolated N/O or N/C contacts, which can be hard wire interfaced to via the DB15 socket at the rear of the

DSPbR® unit.



Figure 2:Sub-Rack frame modular construction

4.2 Sub-rack Frame

The DSPbR® hardware platform is built into a standard 4RU 19” sub-rack frame, which together with its top, bottom and side

covers, module guide rails and centrally located interconnect motherboard, is known as the DSPbR® Sub-Rack.

This sub-rack frame is identical in both single-rack and multi-rack DSPbR® rack configurations.

The sub-rack frame is characterised by the two solid carry handles protruding from the front of the unit. All modules connect into

the centrally located backplane, and are guided to their respective mating coaxial, power and I/O connectors via guided slide

rails. Each pair (with top and bottom rails) is allocated slot numbers within the DSPbR® architecture and webserver GUI.

The backplane assembly is considered integral to the sub-rack frame and its removal or replacement in the field is not intended.

Several of the backplane slot positions cater for RFBE and RFFE inter-changeability. This is detailed in Appendix “A” Slot

Architecture - Typical Configurations.



Figure 3:DSPbR® front view

Figure 4: DSPbR® Rear View

(Fully populated with RFBE + BP Filter modules - internal combiners not fitted)



4.3 Modules

The DSPbR® has been designed on a modular level and as such the modules are configurable to essentially cater for different

power supply and sub-band options providing channel expandability.

The mandatory modules, without which the unit would not function, are the PILM (Power Inlet Module), PSU (Power Supply

Unit) either 110-240VAC, 24VDC or 48VDC, CSC (Central System Controller), REFGEN (Reference Generator + Aux), DSP

(Digital Signal processor) with two platform options, 4Ch 2 Band or 8Ch 3 Band, and at least a one RF Front End RFFE and

corresponding RF Back End RFBE. A BPFM (Band Pass Filter Module) is bolted to the RFFE and RFBE modules for insertion

and or removal from the sub-rack frame as one unit.

The backplane is centrally located within the sub-rack frame and interconnects all modules within the sub-rack frame. The PSU

and CSC modules are located and removed from the front of the sub-rack frame. The Ref Gen + Aux, DSP, RFFE and RFBE

modules with corresponding BPFM’s are located and accessible from the rear.

The rear of the sub-rack frame is divided up from the left (looking at the sub-rack frame from the rear) into slot positions. There

are 10 available slot apertures counting slots 1 to 10 from the left of the sub-rack frame to the right. The extreme right fixed

module is the Ref Gen + Aux underneath which the PILM module is located. The DSP Module is fitted in the 10th slot. RFBE

modules are accommodated in slots 1 to 8. Slots 7, 8 and 9 are designed to accommodate RFFE modules. Slots 7 and 8 are

therefore available for use by RFFE or RFBE modules.

Once originally configured the RFBE and RFFE (+ BPFM) modules are “hot swappable” and can be removed or inserted without

powering down the DSPbR.

A label bearing the respective module’s model number, version and serial number identifies each module. This label is adhered to

the side of the module and is not visible without removing the module from the slot.

A user definable removable yellow plastic labelling system has been provided on the external surface of the BPFM bolted to the

RFFE and RFBE modules to allow the user to identify allocated ports once the user has configured the DSPbR® using the web

browser.

4.3.1 PILM - PSU In-Let Module

The PILM is a power-conditioning module. There are four versions of this module; 24VDC, 48VDC, 110VA and 240VAC.

The 110VAC PILM has an IEC320-C19 socket into which the provided mains power cord is plugged. The 240VAC PILM has

an IEC320-C14 socket.

The inlet module provides a degree of mains surge protection. Both the 24VDC and 48VDC PILM’s connect to an external DC

supply via an 85Amp Phoenix HDFK 16A connector block.

Although the AC PSU module accommodates an input voltage range from 110V to 240V, the appropriate 110V or 240V AC inlet

module has to be fitted to the chassis.

4.3.2 PSU Module

The PSU module is designed as modular and removable from the front of the DSPbR. Electrically preceding the AC PSU is the

appropriate PSU inlet module which is located from the rear of the DSPbR. It is not necessary to remove the power inlet module

prior to removal of the PSU module. Currently three PSU modules are available, 24VDC, 48VDC and the 110-240VAC

50/60Hz AC version.

To remove the PSU module, firstly disconnect the DSPbR® from the AC mains or DC power source and then unscrew the six

front mount screws from the front of the DSPbR.

Carefully retract the PSU unit straight out on the provided guide rails using the front handle on the PSU. Pull the PSU out far

enough to gain access to the inlet module in-line plug/socket interconnect arrangement and the fuses located on the left-hand side

panel of the PSU module on the AC unit as illustrated in Figure 4.



Figure 5: Removal or refitting of DSPbR® AC PSU

When removing or replacing the PSU, ensure to disconnect and on replacement re-connect the in-line plug into the in-line socket

on the inlet module interconnect cable located on the RHS facing the front as illustrated. Although fundamentally the same, there

is a small physical difference between the AC and DC PILM to PSU in-line plug socket arrangement.

The AC PSU has three replaceable inverter fuses located within the PSU module and in order to check or replace any of these

fuses, the PSU has to be unscrewed from the sub-rack frame as previously illustrated in Figure 4, levered forward on the guide

rails using the available handle far enough to access the fuse holders as illustrated in Figure 6.

Note that the 24VDC and 48VDC PSU’s have no replaceable fuses like the AC PSU version. The DC PSU’s have internal self-

recovering overcurrent; over-voltage and under-voltage protection.

Figure 6: AC PSU fuse location.

All three fuses in the AC PSU are identical in rating and size and are listed under the DSPbR® part number reference list within

this User’s Manual.



4.3.3 CSC – Central Systems Controller Module

The Central System Controller module is located at the front of the DSPbR® and is positioned on the extreme left-hand side as

illustrated in Figure-6. An LCD display, a green power on “ACTIVE” LED and two red alarm LED’s, ALRM1 (major alarm)

and ALRM2 (minor alarm), mode change button, USB Type B, TCP/IP RJ45, RS232 socket and CAN bus RJ11 socket are

located on face of the CSC module. Although an RJ45 socket is duplicated and located at the rear of the DSPbR® on the Ref Gen

+ Aux module, DSPbR® configuration and diagnostics for all modules is via the CSC module.

Figure 7: CSC Controller

Similar to the PILM, the PSU, RefGen + Aux and the DSP modules, the CSC module is required to be fitted into every DSPbR®

chassis.

In previous versions of the CSC module, separate models were used in DSPbR® multi-rack chassis configurations. These

separate models have now been integrated into a single universal CSC which can be configured for either ‘master” or ‘slave’

modes of operation via the webserver GUI.

The CSC has an on-board back up battery, which provides power to its microprocessor and cellular modem, enabling the sending

of appropriate alarms after a primary power failure. The microprocessor stores system configuration files and can restore

previous configuration settings to a newly fitted module.

The internal back-up battery is enabled or disabled via the GUI. Whilst connected, the battery is conditioned through an

intelligent charger circuit. The internal battery is hardwired into the module and is unlikely to require field maintenance or

replacement.



4.3.4 Ref Gen + Aux – Reference Generator Module

Located at the rear of the rack on the extreme right-hand side (looking at the back of the rack from the rear), the Ref Gen + Aux

module is required to be fitted into every DSPbR® chassis.

The Ref Gen + Aux module provides interconnectivity to and from optional signal reference sources such as a GPS or other

external 10MHz reference signal.

Ref Gen +Aux module

Figure 8: Ref Gen + Aux Module

Frequency reference disciplining is enabled via the “System” configuration screen under the “Configuration” tab.

Seven radio button options are provided. Refer to “Systems Configuration” Screen as illustrated below.



4.3.4.1 Frequency Reference Disciplining options;

Disabled:

This option disables alarms related to GPS and external reference signals.

Note: If an external reference signal is connected and provided, this signal reference signal will be ignored, however if

a GPS antenna is fitted, the system will be disciplined to the GPS signal, but the related GPS alarms will not be

reported.

GPS Enabled:

This option enables GPS related alarms and disciplines the system by the GPS signal.

Any external reference signal will be ignored (if connected).

External Reference Enabled:

This option enables external reference related alarms and disciplines the system by an external reference signal. Should

the external reference be removed, the system will still discipline to a GPS signal (if GPS antenna fitted).

DSP A Fiber 0, DSP A Fiber 1, DSP B Fiber 0, DSP B Fiber 1.

These options enable synchronization data sent across either Fiber 0 or Fiber 1 to DSP A or DSP B, to discipline the

system. This allows a master Reference Generator to discipline other Fiber connected DSPbR® Chassis Reference

Generators.

When no disciplining is required, activate the “Disabled” radio button. This option disables alarms related to GPS and

external reference signals. Should an external reference signal be connected via the allocated rear SMA (F) socket in

this mode, the reference signal input will be ignored, however if a GPS antenna is connected whilst in this mode, the

unit will automatically be disciplined by the GPS signal.

When a GPS signal is required to discipline the reference generator clock frequency, an active GPS antenna must be connected to

the GPS Antenna input. The output voltage on this connector is 6VDC rated at 0.5A. It is not necessary to activate the “GPS

Enabled” radio button for the GPS signal to discipline the reference generator clock frequency, however to enable alarming in

this mode and to ignore a 10MHz reference signal which may be connected and present, activate the “GPS Enabled” radio

button.

The “EXT REF” SMA Female connector is used to lock the reference generator to an external 10MHz reference. The required

stability of this reference is +/- 3PPM with a nominal input signal level of 0dBm (0.22V RMS on 50 Ohms). The presence of the

external reference above a certain level will lock the Ref Gen clock frequency to that reference should the “External Reference

Enabled” radio button be Enabled.

The “REF MON” SMA Female connector provides a 10MHz low impedance reference signal output at 0dBm (nominal). The

output is daisy chained through each Ref Gen + Aux module that requires the clock reference. When daisy chained the Ref Gen +

Aux modules will buffer the 10 MHz reference prior to forwarding onto the next Ref Gen + Aux module.

Where more than one sub-rack frame is interconnected via fibre, the nominated and configured “Master” Rack will aggregate all

alarms and alarm reporting.



GPS Antenna (+6VDC) SMA (F) termination

Reference Monitor SMA (F) termination

External Reference SMA (F) termination

Internal Cell Modem Antenna SMA (F) termination

Ethernet RJ45 Interface

DB 15 Alarm and external input interface

Figure 9: Ref Gen Module Interface

Note: Later models of the Ref Gen module cater for 4G (LTE) MIMO operation and have an additional

Cellular antenna connector.

4.3.4.2 Inserting the Multi-band cellular modem SIM card

A multi-band cellular network modem is mounted to the Ref Gen board which is located from the rear of the DSPbR® sub-rack

frame. It is recommended that the SIM card on the Ref Gen board is removed and or refitted into the DSPbR® in an

electrostatic controlled environment.

4.3.4.3 SIM card Installation

Note: To remove the Ref Gen board from the DSPbR, it is easier to completely remove the DSP module in the adjacent slot and

then remove the Ref Gen module.

1. Removal of the Ref Gen + Aux board from DSPbR® Sub-rack Frame;

• Unscrew the two (2) screws retaining the respective DSP Module and the Ref Gen + Aux board.

• Carefully remove the DSP module which is guided by top and bottom internal rails by first pressing the top and bottom

lever handles on the rear of the module outwards, and carefully “pull out” the DSP module.

• Once DSP module removed access to the Ref Gen board is easier, carefully extract the Ref Gen + Aux board along the

internal guide rails.

2. Lay Ref Gen + Aux board on a flat anti-static surface

3. Unpack the SIM card

4. Ensure there is no enabled PIN

5. Push along the top of the SIM card holder (X802) until the hinged SIM holder is loose

6. Lift the hinged SIM holder

7. Ensure the SIM card is correctly orientated and insert into the hinged holding sleeve

8. Close the hinged SIM holder

9. Push along the top of the SIM card-holder until the hinged SIM holder is locked in place

10. Once the SIM card has been fitted and securely locked down into the Ref Gen + Aux board, the Ref Gen board can then be

re-inserted along the guide rails and fastened into the sub-rack frame

11. Re-insert the DSP module and then fasten both into the sub rack frame with their respective top and bottom fasteners

The modem is then configured via the Communications Configuration page under Modem Settings.

For alarm notifications via SMS messaging, enable the setting tick box under the Alarms configuration page.



4.3.5 DSP – Digital Signal Processor Module

A DSP module is partitioned into Side “A” and Side “B”. Channel and multi-band independent a single DSP board Side “A” will

service up to 4 bi-direction carriers (uplink and downlink) in two bands. With both sides populated a DSP module is capable of

processing up to 8 bi-directional channels in 3 bands.

DSP Module, illustrated without the

fibre expansion board fitted on either

side A or B

Figure 10: DSP Module

The DSP module fits into slot 10. This is the only slot allocated to the DSP module in the motherboard architecture. The DSP

module does not require a tool to remove it once the screw fasteners have been fully released, there are two (top and bottom

located) ejector lever handles which assist in its removal from the sub-rack frame.

A DSP board in side “A” is wired to take inputs from RFFE boards in slots 9 & 8 and drives RFBE boards in slots 1, 2, 5 & 6. A

DSP board in side “B” takes inputs from RFFE boards in slot 7 and drives RFBE boards in slots 3, 4, 7 & 8.

The DSP module can be removed and replaced whilst the DSPbR® is powered, however RF functionality will cease, inhibiting

the signal path between RFFE and RFBE’s whilst a DSP module is unplugged. An arrow with the letters “UP” on the rear face

indicates the module orientation.

Where fibre connectivity between DSPbR® sub-rack frames is required, or the use of the Trunking Extender (T-Ex) option,

expansion boards are fitted internally to the DSP module.



Yellow blank label recess

DSP Side B Expansion

Board SFP docking ports

SFP Green LED

Optical Rx Indicator

DSP Side A Expansion Board

SFP docking ports

SFP Green LED optical Rx

indicator

Figure 11: DSP Module with 2 x fiber interface (fitted to both side A and B)

Figure 12: DSP Fiber Port orientation



Figure 13: DSP + Fiber Expansion board block schematic

4.3.6 RFFE – RF Front End Module

An RFFE module is partitioned into side “A” and side “B”. Two RFFE boards are fitted into an RFFE module. The RFFE boards

can be in different bands, however the BPFM fasted to the RFFE module must have the corresponding Side “A” and Side “B”

band pass filters.

BPFM RFFE

Figure 14: Example UHF or 7/800MHz RFFE + BPFM bolted together

(VHF models have both integrated in one housing)

The DSPbR® backplane architecture accommodates up to six RFFE boards (three modules). The 1st slot allocation for the RFFE

module is slot 9 (please note that slot 9 is dedicated to an RFFE slot only) followed by slots 8 and 7 respectively.

The frequency bandwidth of each RFFE is a contiguous 20MHz. One RFFE can feed any number of corresponding channelized

RFBE’s. This is true for bi-directional uplink and downlink configurations.

Although the individual channel frequencies and their characteristics within an RFFE band are adjustable, the RFFE frequency

band itself is fixed and is not adjustable. A different model RFFE module is required for each 20MHz band.

The VHF 150-174MHz RFFE features a 20MHz ‘sliding window’. For example, at the sub-band extremes this module can be

configured to operate on frequencies between 150 to 170MHz or 154 to 174MHz. Alternatively, a different 20MHz window

position can be selected – i.e. 152.200 to 172.200MHz. The VHF 150-174MHz RFBE module has an 8MHz wide ‘sliding

window’. Neither the VHF RFFE or VHF RFBE has detachable BPFM’s. The band pass filter is built into the same housing

and therefore cannot be changed or removed.



4.3.6.1 Channel Configuration programmability

Channel Configuration programming is facilitated via the web browser GUI interface – Refer to chapter 5.2.7.

4.3.6.2 Typical hardware configuration examples

RFFE 410+410MHz module is configured with an RFFE 400-420MHz board in side “A” and the same 400-420MHz RFFE

board in side “B”.

An RFFE 815+860MHz module is configured with an RFFE 805-825MHz board in side “A” and an 850-870MHz RFFE board

in side “B”.

4.3.7 RFBE – RF Back End Module

The RFBE is similar in external form to the RFFE and is bolted to the BPFM in the same manner. RFFE and RFBE BPFM’s are

identical.

The illustration of form and the bolting together of the BPFM to the RFFE in Figure 14 is the same for the RFBE.

An RFBE module is partitioned into side “A” and side “B”. Two RFBE boards are fitted into an RFBE module. The RFBE

boards can be in different bands, however the BPFM fastened to them must have the corresponding side “A” and side “B” band

pass filters.

The motherboard architecture accommodates up to sixteen RFFE boards (eight modules).

A DSP board in side “A” takes inputs from RFFE boards in slots 9 & 8 and drives RFBE boards in slots 1, 2, 5 & 6. A DSP

board in side “B” takes inputs from RFFE boards in slot 7 and drives RFBE boards in slots 3, 4, 7 & 8.

Although the individual channel frequency and its characteristics within an RFBE band are adjustable, the RFBE band is fixed.

RFBE modules are band specific.

As with the VHF 150-174MHz RFFE, the RFBE Module has an 8MHz sliding window, for example at the sub-band extremes it

can be programmed for frequencies between 150 to 158MHz or 154 to 162MHz or anything in between for instance 152 to

160MHz. The RFBE in the VHF band does not have a detachable BPFM as it is built into an extended module housing and

therefore cannot be changed or removed.

4.3.7.1 Channel Configuration programmability

Channel configuration programming is done via the web browser GUI interface – Refer to chapter 5.2.7

4.3.7.2 Typical hardware configuration examples

An RFBE 410+410MHz module is configured with an RFBE 403-420MHz board in side “A” and the same 403-420MHz RFBE

board in side “B”.

An RFBE 815+860MHz module is configured with an RFBE 805-825MHz board in side “A” and an 850-870MHz RFBE board

in side “B”.

4.3.7.3 Output power level settings

When configuring the RFBE via the GUI, the adjustable RF output power level is referenced to dBm and is the output level of

the RFBE and does not include the losses of the BPFM or optional internal combiner module. The level is adjustable in 1dB

increments from +32dBm to +46dBm (+/- 0.5dB) for frequencies from 400 to 520MHz and +32 to +44dBm in 1dB increments

for the 746 to 870MHz Frequency Range. The drop-down menu over the setting will indicate the available output power level

choices relevant to the frequency band. Refer to Table 3.



4.3.8 BPFM – Band Pass Filter Module

The DSPbR® BPFM (Band Pass Filter Module) is band specific across the pre-determined bandwidth of the respective RFBE or

RFFE. The BPFM is fitted and bolted into the output of the RFBE and input of the RFFE and is considered as an extension to the

respective RFFE or RFBE module. Prior to assembly into a nominated slot, the BPFM must be bolted into the respective RFFE

or RFBE.

Before fitting a BPFM to and RFFE or RFBE, ensure sub-band frequency compatibility for both corresponding sides of the

respective RFBE or RFFE.

A 2.5mm Allen Key (Hex) tool is required to unfasten or fasten the two modules together as illustrated in Figure 15.

BPFM’s are used to filter the input to the RFFE’s and filter the output of the RFBE’s. They are factory tuned to provide a 20MHz

pass band and NOT considered field tuneable. No attempt should be made to tune or optimise tuning of this filter.

Figure 15: Bolting BPFM onto RFFE or RFBE

An arrow with the letters “UP” on the rear face indicates the module orientation.

4.3.9 8-Way Internal Combiner Filter Unit

The 8-Way combiner filter unit footprint is across 8 contiguous RFBE channels, or 4 slots.

The combiner incorporates built in isolators, a hybrid coupler combiner and a 20MHz pre-tuned bandpass filter.

Figure 16: 2 x 8-Way Combiner Filter blocks mounted into a DSPbR® sub-rack frame



Figure 17: Removal of 8-Way Combiner Filter block from DSPbR® sub-rack frame

Typical insertion loss figure for any channel through the 8-Way Combiner Filter is 11.5dB. The combiner is frequency agile

across the full 20MHz fixed sub-bandwidth.

An 8-Way Internal combiner filter is not available for the VHF sub-band as the RFBE is integrated with the BPFM and cannot be

removed to make space within the chassis for an internal combiner module.

A single sub-rack frame can accommodate up to 2 x 8-Way combiner filter blocks, these are typically assigned as one for uplink,

and one for downlink, but in multi-rack configurations, both combiners (if fitted in one chassis) could be assigned as either

uplink or downlink as required.

The connector on the combined output port of the 8-Way combiner filter block is an N Female style.

Please refer to the maximum output power settings of the RFBE when using an 8-Way combiner filter unit - as detailed under

chapter 5.3.9 and illustrated in Table 3.

When an 8-Way combiner filter unit has been fitted in either the uplink or downlink or both, the provided tick box needs to be

activated “per channel” feeding through the 8-Way combiner filter unit for the maximum output power to be auto-adjusted. This

will effectively reduce the maximum output power level settings of the RFBE based on the number of enabled carriers to ensure

no peak power breakdown damage within the 8-Way internal combiner filter unit.

Should the user wish to manually adjust the maximum output power level, Table 3 indicates the MAXIMUM output power level

setting permissible without causing damage to the 8-Way Combiner Filter Unit.



Number of

carriers

RFBE Module Maximum RF Output power

setting via GUI (Analogue, DMR, P25P1)

RF Output Power at output of Combiner

Filter tick box activated

VHF/UHF 7/800MHz VHF/UHF 7/800MHz

2 46dBm 44dBm 34.5dBm 32.5dBm







Number of

carriers

RFBE Module Maximum RF Output power

setting via GUI (P25P2, TETRA)

RF Output Power at output of Combiner

Filter tick box activated

VHF/UHF 7/800MHz VHF/UHF 7/800MHz








Table 3: 8-Way Internal Combiner Filter, per carrier Max Power Settings

Notes: 1) Approximate loss through combiner filter unit for all bands is 11.5dB

2) Duty Cycle assumption per channel 100%

3) All carriers through the combiner filter unit are to be set to the same level

As indicated in Table 3, an additional 11.5dB of loss is added to the RFBE RF output power figure to get an indication of the

output of the 8-Way combiner filter unit.

dBm Watts dBm Watts dBm Watts

0 1.0mW 16 40mW 32 1.6 W

1 1.3mW 17 50mW 33 2.0 W

2 1.6mW 18 63mW 34 2.5 W

3 2.0mW 19 79mW 35 3.2 W

4 2.5mW 20 100mW 36 4.0 W

5 3.2mW 21 126mW 37 5.0 W

6 4mW 22 158mW 38 6.3 W

7 5mW 23 200mW 39 8.0 W

8 6mW 24 250mW 40 10 W

9 8mW 25 316mW 41 13 W

10 10mW 26 398mW 42 16 W

11 13mW 27 500mW 43 20 W

12 16mW 28 630mW 44 25 W

13 20mW 29 800mW 45 32 W

14 25mW 30 1.0 W 46 40 W

15 32mW 31 1.3 W 47 50 W

Table 4: dBm to RF Power in Watts - Cross Reference



4.3.10 DSPbR® Sub-Rack Frame Architecture

Refer to Appendix “A” - Single Sub-rack Frame, DSPbR® Slot Architecture – Typical Configurations.

The DSPbR® architecture facilitates band and channel flexibility with in-field upgradability.

At the rear of the DSPbR® sub-rack frame are 10 slot apertures numbered sequentially from the left.

SID

E A

SID

E B

DSP

Ref G

EN

Power

Input

Slot 1 Slot 9 Slot 10Slot 6Slot 4Slot 3 Slot 7 Slot 8Slot 5Slot 2

View from rear of DSPbR

Figure 18: Slot allocation Architecture

4.3.10.1 Slot allocation architecture

Slots 1-6 allocated to RFBE’s only.

Slots 9 allocated to RFFE only.

Slots 7 & 8 allocated to either RFFE’s or RFBE’s.

Slot 10 allocated to a DSP module.

Typically slots 1-4 or 5-8 are used for an 8-Way Internal combiner filter unit.

RFBE modules can be configured such that side “A” is an uplink channel and side “B” is a downlink channel. When RFBE

modules are configured in this way, the use of an internal combiner is not possible.

Alternatively, RFBE modules can be configured with both side “A” and side “B” as uplink or downlink. This configuration

option along with the corresponding slot block allocation permits the fitting of the internal combiner unit.



4.3.10.2 Internal up link and or down link RFBE combining

Internal RFBE output combining of uplink and or downlink channels is optional. However, the slot and uplink / downlink

configuration must be in accordance with the following simple rules.

Rule 1.

Both side “A” and side “B” within the RFBE module must be configured as either uplink or downlink

RFBE boards.

Rule 2.

Combined channels must occupy 4 contiguous slots, i.e. slots 1-4 or 5-8.

The 8-Way combiner filter unit uses a hybrid coupler technique to cater for combining frequencies that are adjacent or at any

frequency within the allocated 20MHz sub-bandwidth. Isolators and a band pass filter are incorporated within the combiner unit

supporting good transmitter combining engineering practices.

The 8-Way combiner filter unit bolts directly onto the back of the RFBE modules, effectively replacing the individual BPF

modules at the outputs of the RFBE’s. The N female single output connector is accessible from the rear of the unit. Caution

must be taken when touching the combiner module from the rear when in service as heat is likely to have been generated through

this combining technique.

Both uplink and or downlink output combining is possible within a single sub-rack frame.

The 8-Way internal combiner has a single output and is not tuneable.

Should this style of combining not be suitable for an application, external combining is recommended. When internal combining

is not required, each RFBE module will be bolted to a corresponding BPFM, where the output N female connectors for both

boards are presented at the rear of the sub-rack.

4.3.11 DSPbR® Channel Expansion

The DSPbR® is fundamentally designed for modular channel expansion. From a single channel in a single direction to bi-

directional sub-rack frame expandable once the available slots have been utilised in a single sub-rack frame. This is achieved by

daisy chaining fibre connected additional sub-rack frames.

An optional Fibre optic link is provided to connect more than one sub-rack frame together. This is achieved via the DSP module,

where fibre expansion boards are fitted that accommodate industry standard SFP transceiver modules. Where there is more than

one sub-rack frame, one of the sub-racks is configured as the “Master” and the other(s) as “Slaves”.

This expandability accommodates additional bands and channels not possible utilising a single sub-rack frame.

The scope of this user’s manual does not extensively cover DSPbR® sub-rack expansion options. Systems requiring additional

sub-racks frames in this manner will be provided project specific documentation.



5. Installation

5.1 Unpacking

The DSPbR® is heavy and considered a two-man lift. Always ensure safe lifting practices are followed when lifting a DSPbR®

chassis during installation, removal or maintenance activities.

The 19” sub-rack frame will have been packed into a robust cardboard box container. All modules ordered with the initial order

will have been fitted and fastened into the appropriate slots within the sub-rack frame. The appropriate AC mains voltage power

cord, Ethernet jumper cable and module extraction tool along with a User Manual in a hard and softcopy CD will have been

packed into the same cardboard box container.

There are no feet on the underside of the unit and therefore careful placement “right side up” on a flat surface prior to mounting

is required.

5.2 Mechanical

A single DSPbR® sub-rack frame will occupy 4RU of 19” rack height. The minimum un-obstructed depth required within the

19” rack, excluding the additional space required to fit cable terminated coaxial connectors is 440mm. Top and bottom and side

covers of the sub-rack frame are not required to be removed for field servicing and therefore is discouraged.

Figure 19: DSPbR® Dimensions Front View



Figure 20: DSPbR® Dimensions Rear View

Figure 21:DSPbR® Dimensions Left Hand Side View

Figure 22: DSPbR® Dimensions Right Hand Side View



Figure 23: DSPbR® Dimensions Top View

The DSPbR® is designed to be mounted into a 19-inch rack frame within an indoor environment. Although the mechanical

strength of the DSPbR® sub-rack frame is robust enough to contend with a maximum “all up” module load, any additional

weight bearing adjustable mechanical supports such as angle brackets extending between the 19-inch front mounting frame and a

rear frame would add strength to the support. There are many types of 19” rack cabinets and we suggest you consult with your

19” rack frame or cabinet supplier for appropriate weight support options.

The DSPbR® uses forced air-cooling and requires good airflow from the front of the DSPbR® where the two fans draw in cooler

air and expel heated air at the rear. 19-inch rack cabinet ventilation must facilitate the unrestricted movement of cooler air from

the front of the cabinet and the unrestricted movement of expelled hot air at the rear. The fan speeds are temperature controlled,

alarm notification messages and hardwired state change critical alarm relay contacts will activate if the temperature exceeds safe

operational limits.

When a modules internal temperature gets up to +70deg C, the fans will be running at full speed. This equates to an airflow

volume for both fans of 880 cubic meters of air in an hour

(equating to around 0.25 cubic meters in a second). Ensure unrestricted airflow to reduce differentiating high and low air pressure

zones.



Both fans have front panel accessible dust filters, which will require periodic cleaning. Please note that caution must be taken

removing the fan covers and dust filters whilst the unit is operational as the fans may start up or be running. Although there is a

protective guard to prevent fingers from accessing the fan blades from the front, the suction and fan noise may startle the

unknowing.

The dust filters can be removed for cleaning by carefully levering off the plastic fan covers. No special tools are required for this

task. A mild soap wash and dry should be sufficient to clean the dust filters. Should they be perished in any way, please replace

them. The fan dust filter part number is located under the part number section of this user’s manual.

Different configurations will influence the weight of the DSPbR. It is however important to know that the DSPbR® could weigh

up to ~38kgs, which is considered heavy and a two man lift. There are three handles located on the front panel of the unit of

which only the two side handles are available for lifting the unit. The third handle is to be used only for the removal of the PSU

and is marked with a label underneath the handle indicating that this handle is not to be used for lifting.

5.3 Electrical and Earthing

The DSPbR® can be powered from either a 24VDC, 48VDC or 110-240VAC mains power source.

Figure 24: DC 24 or 48VDC Phoenix HDFK 16A connector termination block

Please check the power connectivity at the bottom right hand side of the rear of the sub-rack frame (viewing the DSPbR® from

the rear) to determine which option has been supplied.

DC Connectivity is via the terminal block located at the rear of the DSPbR® as illustrated in Figure 24.

WARNING:

Before proceeding with this chapter, if you have not already done so, please read and familiarise yourself

with the Health and Safety warnings in Chapter 1.3 of this user’s manual.



Figure 25: AC Mains Termination IEC320-C14 socket connector (240VAC) and M6 Earthing Stud.

Prior to connecting the power source, ensure the unit is earthed to the 19” rack and the earthing follows through from the rack to

the common external earth.

Connect the 19” rack earthing facility on the sub-rack frame using the provisioned 6mm threaded stud on the sub-rack frame as

illustrated in Figure 25.

Connect an earth bonding cable with a minimum cross section of 16mm² terminated with the appropriate crimped lug for the

6mm stud and 16mm² copper cable. The 16mm² cable should be identifiable by the green and yellow coloured PE sheath. Loosen

the Hex nut, connect the cable-crimped lug between the two washers and fasten.

Consideration has to be given to adequate grounding and surge protection of the RF coaxial cables prior to termination into the

DSPbR, and surge protection for the Ethernet and AC Mains.

When designing to use an AC supply, it is recommended that the DSPbR® is turned on via either the wall mount socket switch, a

dual pole isolator switch or dedicated “D” curve circuit breaker after the mains cord has been fitted.

Where connecting to DC supply, it is recommended that an appropriately rated dual pole DC circuit breaker be installed. This

will assume the role of an ON/OFF switch.

Prior to connecting to either an AC mains or DC supply, ensure that the RF outputs at the rear of the DSPbR® sub-rack frame,

whether via an internal or external combiner, are terminated as a minimum into 50ohm loads, alternatively into the respective

antenna cables.

The AC mains IEC320-C19 socket rating is 15 Amps, which is used for the 110VAC input voltage range

The AC mains IEC320-C14 socket rating is 10 Amps, which is used for the 240VAC input voltage range

Two industry standard AC mains power cord options are available with the DSPbR. For the Australian market a 2.5 metre cord

fitted with a 10 Amp standard mains plug is provided. For the US market a 2.5 metre cord with a 15 Amp rated 5-15P mains plug

is provided.

WARNING:

There is no ON/OFF power switch located on the DSPbR for either the DC or AC connectivity.



DC connection to the DSPbR® is via a two terminal 85 Amp rated polarised modular Phoenix connector block (Phoenix model

number HDFK 16A). The polarised DC power cables must be rated to carry the required current with minimal voltage drop. We

recommend the use of 10AWG gauge cable up to 10 meters in length for the 48VDC supply option and 6AWG cable of the same

length (up to 10m) for the 24VDC supply option.

DC power cables, in-line fuses or circuit breakers are not provided with the DSPbR.

Use a qualified electrician to assist with the AC mains installation.

Once either DC or AC mains power has been applied to the DSPbR, the DSPbR® will test cycle which will last approximately

45 seconds, during which time the fans will be turned on and then off.

5.4 Lightning Protection

In order to proactively protect the DSPbR® from static discharges, power surges or lightning strikes we recommend the use of

additional lightning surge protection products.

5.4.1 The AC Mains

Although the DSPbR® complies with the basic mains surge protection requirement according to EN 61000-4-5, it is

recommended that in areas where the mains voltage is susceptible to voltage variations and surges, that medium or coarse voltage

conditioning and surge protection be installed.

5.4.2 RF Coaxial Cabling

All RF coaxial cabling exposed to proximity or direct lightning discharges should have appropriate cable grounding and lightning

surge protection devices fitted prior to entry into the DSPbR.

This includes when GPS and or Cellular modem antennas are being used as part of a DSPbR® installation.

5.4.3 Ethernet connection

As network cabling may also be susceptible to surges, the IP Ethernet connection should be provided surge protection using a

product such as the Polyphaser, NetGuard or NX Series products.

5.5 Antenna to Antenna Isolation

Where frequencies are being rebroadcast without translation, back- to-back antenna isolation will determine the amount of gain

that can be configured through the UL and DL paths.

Back-to-back antenna isolation is the measured isolation in either UL or DL direction between the “off air” donor facing antenna

and the antenna or signal distribution system providing the extended coverage.

As a rule, the gain should be set 15dB below the measured antenna to antenna isolation to reduce the risk of on-frequency

rebroadcast feedback/oscillation in either direction. The isolation / gain margin is easier to achieve when rebroadcast is required

for coverage extension is into a physically enclosed area such as a building or tunnel.

Where the rebroadcast frequency is translated, in other words the received frequency in either the UL or the DL is not the same

as the amplified and rebroadcast frequency transmitted, the minimum antenna isolation parameters are significantly different.

This is commonly referred to as the Rx-to-Tx offset.



Using the graph in Figure 26, the minimum isolation between these two back-to-back antenna systems can be determined.

As an example, if the frequency translation offset is 0.5MHz (500KHz) at UHF, the minimum antenna to antenna isolation

required would be 85dB regardless of configured gain in either the Uplink (UL) or Downlink (DL).

Further observation of the graph will indicate that the minimum 85dB isolation between the antenna systems generally applies to

all the bands and offset frequencies greater than 400KHz.

It is important to note that this minimum isolation characteristic is also applicable to duplexers if used to split and combine the

Uplink and or Downlink paths.

Figure 26: Antenna - to - Antenna isolation graph.



5.6 External / Internal Alarm Interface

At the rear of the chassis protruding from the back of the Ref Gen module is the DB15 female (socket) alarm interface connector.

Figure 27: External/ Internal Alarm Interface

Figure 28: Alarm Interface connector pins.



The alarm interface drawing in Figure 27 details the respective alarm input and output circuits with respect the DB15 connector

pins.

The DSPbR® caters for coupling into the unit and reporting up to four external alarm inputs. All four inputs require shorting to

ground to activate the respective alarm. The open circuit voltage is 12V DC.

These four individual external alarm circuits can be configured with a reference name and any one of three states. Major alarm,

Minor alarm and None. Please refer to Alarms Configuration under the configure tab in the GUI menu as displayed in the screen

dump illustration.

When the identified external alarm input changes state, this is flagged in the Alarm Status screen under the Status tab as

illustrated in the Alarm Status screen.



6. Start Up

Prior to turning the power on from the circuit breaker to the DSPbR, ensure all un-used RF ports on the respective

RFFE+BPFM’s and RFBE+BPFM’s are terminated with a 50 Ohm load - or directly into the interconnect cables attached to

either antennas or passive components within the designed system.

6.1 CSC Front Panel Power On “ Active” and Alarm LED’s

From the front of the DSPBR® you will notice the green “Active” LED will be illuminated as the DSPBR® goes through its boot

up cycle, during which time the Major (ALM1) and Minor (ALM2) red LEDS’s will also be temporarily illuminated. The two

front mounted fans will also be activated during the boot up cycle.

Figure 29: CSC Front Panel LCD Display, Mode Button and LED’s

Green “Active” LED – Lights up and stays on once DSPbR® has finished booting up.

Red “ALM1” LED – Lights up on critical alarm relay activation. Stays on for duration of relay activation

Red “ALM2” LED – Lights up on minor alarm relay activation. Stays on for duration of relay activation



scroll

6.2 LCD Display

When the DSPbR® is switched on the RFI Logo is displayed with a backlight on for up to 45 seconds.

After this initial period, the logo remains on and the backlight turns off.

Pressing the Mode Button once will activate the backlight.

With sequential Mode Button pressing, the following real time current information is written and displayed within the 4 lines of

the LCD screen

• Second Press: Current IP Address/Subnet /Gateway/MAC address

• Third: Set Date and Time

• Fourth: PSU rail voltage / battery voltage

• Fifth: Modules detected and enabled

• Sixth: Module temperatures

• Seventh: RSSI levels per channel

The LCD display, backlight and information are powered by the standby battery in power failure mode.

DSPbR® Normal or Factory default reset options are available via CSC front panel Mode Button

The front panel Mode button below the LCD screen of the DSPbR® module is normally used for checking the DSPbR® status

and configuration details. The same Mode button has an alternate function of restoring the controller to factory default. To enter

in this factory default menu the Mode button should be held pressed for 5 seconds. The LCD screen changes to “RESET MODE

ENTRY” as show below,

When above screen is displayed release the Mode button and once again quickly press and release the Mode button to see the

further options as shown below,



The factory reset menu has five options to choose from and the arrow pointing left indicates currently selected option. To

advance the arrow position to select next menu option press and quickly release the Mode button.

The following table shows the reset options and their description.

LCD Displayed Menu Description

1 Exit Menu Exit from the factory reset menu

2 Normal Reset Just restart the controller and configuration stays unaltered

3 Factory Reset Load controller with default factor configuration with unaltered IP address

4 Fact+IP Reset Load controller with default factory configuration including IP address

5 LatestCheckPt Load controller with the last saved checkpoint

Table 5: Controller LCD Reset and Check Point options.

6.2.1 Activating the selected Reset Menu:

After selecting the appropriate menu item from the list release the Mode button. Now once again press and hold the Mode button for 5 seconds or

until you see following screen.

Now release the Mode button. This is the final confirmation before the factory reset action. The default arrow position is “NO”.

To move the arrow to “YES” option press and quickly release the Mode button. Now the arrow will point to “YES” option. At

this stage press and hold the Mode button for 5 seconds and the screen updates to following;



Now release the Mode button. The above screen indicates that factory reset was successfully completed.

To go back to normal status screen press and quickly release the Mode button.

Factory Default settings

• Static IP address: 192.168.1.200

• Subnet: 255.255.255.0

• Gateway: 192.168.1.254

• Level 2 User name: admin

• Level 2 Password: admin

• Serial interconnect baud rate: 115200

6.3 General Connectivity

Ethernet – via RJ45 sockets, refer to Chapter 5.2.10 for connection details.

RS232 – via front mounted serial DB9 connector on CSC module.

The serial interface allows either a local or remote terminal to interrogate the DSPbR® and access diagnostic information. This

DSPbR® connectivity option is intended for factory technical support which requires CLI (Command Line Interface) script to

communicate to the unit.

USB – via front mounted USB Type “B” socket on CSC module.

Like the RS232 connection, the USB interface allows a local terminal session using a program such as Hyper-terminal™ to

interrogate the DSPbR® and access diagnostic information via CLI.

Wireless - Multiband Cellular Modem in the RefGen + Aux module.

The cell modem is used to provide SMS alarm reporting and the setting up of a PPP session for on board GUI access into the

DSPbR. This further facilitates configured, SNMP trap communication with an SNMP server and email alerts.

6.3.1 Ethernet TCP/IP Connectivity

6.3.1.1 Web Browser GUI (Graphical User Interface)

The DSPbR® utilises an on-board web server to provide web browser access to the GUI. This can be accessed directly

connecting via a short Ethernet cable jumper from a laptop/notebook directly to the DSPbR® or remotely via a TCP/IP network.

A standard Ethernet CAT5e jumper terminated with RJ45 connectors is provided with the unit in the packing box for your

convenience. Use either the rear or front IP Ethernet RJ45 sockets to connect. The DSPbR® can be configured either locally or

remotely via either of these IP Ethernet sockets.

Any one of the common web browsers can be used to access the DSPbR® GUI.



6.3.1.2 IP Address

Connect Ethernet jumper cable between laptop / notebook and DSPbR.

Initiate your preferred web browser such as Internet Explorer, Chrome or Mozilla Firefox and type in the address field the

following default address; http://192.168.1.200 (factory default address).

Connectivity to the DSPbR® is successful when the “log in” page appears.

Should the web browser be unable to open this session, it may be necessary to set the IP address of your laptop / notebook to a

nominated address such as 192.168.1.180.

This is done for example in Windows XP™ in the following manner;

1. Select “Start” from status menu

2. Single click – “Control Panel”

3. Double click – “Network Connections”

4. Double click - “Local Area Connection”

5. In Local Area Connections Status box, single click the “Properties” tab

6. When the Local Area Connection Properties box opens, select the “Internet Protocol (TCP/IP)” choice

7. Click “Properties” tab

8. Enter under IP address 192.168.1.180

9. Enter under subnet mask 255.255.255.0

10. Enter under default gateway 192.168.1.254

11. Click “OK” to initiate changes

This is done for example in Windows 7™ in the following manner;

1. Select “Start” from status menu

2. Single click – “Control Panel”

3. Single click – “Network and Sharing Center”

4. Single click - “Change Adapter Settings” on the left-hand side menu

5. Single Click – “Local Area Connection” box

6. Single Click – “Change Settings of this Connection”

6. When the Local Area Connection Properties box opens, select only

the “Internet Protocol 4 (TCP/IPv4)” choice.

7. Click “Properties” button.

8. Click “Use the following IP address”.

9. Enter next to IP address 192.168.1.180

10. Enter next to Subnet mask 255.255.255.0

11. Enter next to Default gateway 192.168.1.254

12. Click “OK” to initiate changes.



This is done for example in Windows 10™ in the following manner;

1. Right-click the Start button on the task bar

2. Select - “Network Connections”

3. Single click - “Ethernet” from the left hand menu

4. Single click - “Change Adapter Settings” on the top right menu

5. Right-click - “Ethernet” from the selections shown

6. Single Click – “Properties” at the bottom of the drop down menu that appears

6. Click on “Internet Protocol 4 (TCP/IPv4)” to highlight it

7. Click “Properties” button.

8. Click “Use the following IP address”.

9. Enter next to IP address 192.168.1.180

10. Enter next to Subnet mask 255.255.255.0

11. Enter next to Default gateway 192.168.1.254

12. Click “OK” to initiate changes.

13. Close any open menu boxes

Should you still be unable to successfully connect to the DSPBR® via the default IP address then the IP address may have

already been changed. If there is no possibility of recovering the changed IP address, then it will be necessary to reset the

DSPbR® to the factory default settings.

To see what IP address is configured for the DSPbR, use the front LCD screen on the CSC controller module and press the mode

button until the IP address and IP connectivity details appear in the LCD display.

6.3.1.3 Determining the current Ethernet address settings

The currently programmed IP/subnet/gateway addresses are revealed via the LCD front panel when the mode button is depressed

twice. When connectivity to the DSPbR® cannot be established from your PC or Laptop, or you may have simply forgotten your

username and password, it may be necessary to reset the unit to the factory default setting.

6.3.2 Log in Page

The default level 2 User Name is “admin” and Password is “admin”. This default user name and password provides complete and

unrestricted access to the DSPbR® (level 2). Once logged in, this can be changed via the User Management screen under the

Maintenance tab.

6.3.3 User Name and Password Levels

Level 1: User name and password access via the web browser GUI interface displays only status screens.

Level 2: User name and password access via the web browser GUI interface facilitates status, configure and maintenance screens.

Please note: If the incorrect username and password has been entered in succession more than three times, the interface to the

repeater will be blocked for 5 minutes. Refer to Chapter 5.4.2 IP Address - Reset to factory default Ethernet addressing for

default user name and password.

Once the allocated level User name and Password has been entered the appropriately tabbed Introduction page will be presented.



7. Configuration

The following Level 2 access pages are screen images of the respective pages accessible via the web browser.

These pages are for the most part self-explanatory. A help button is located at the bottom of the navigation tabs which opens a

help screen with content pertinent to the screen opened.

The diagram illustrated is provided to bridge the understanding of how traditional channel modules relate to the DSPbR’s

RFFE/RFBE modular architecture concept.

For a more accurate understanding of the functional block diagram of the DSPbR, refer to Figure 1 under 4.2.9.



7.1 GUI Tree

The DSPbR® features an integral webserver Graphical User Interface (GUI) that allows the unit to be conveniently configured

using an internet browser and a computer.

GUI has been structured into two user name and password access levels;

Level 1 (lower): Display and provide access to the Introduction, Status and Logout pages.

Level 2 (higher): Display and provide access to all pages.

The GUI Navigation is mapped out as illustrated;

Note: Some menu headings may

not appear in menus if optional

modules/features are not fitted.



7.2 Status Pages

7.2.1 Status - Current Hardware

The Hardware Configuration illustration is representative of the rear view of the repeater.

This illustration does not indicate Slot 11 (located on the extreme right-hand side), which is the fixed and mandatory "Reference

Generator + Aux " board.

Slot:

Each repeater rack has 10 available slots into which the required modules are inserted for a specific repeater configuration. One

module can be inserted into a slot. Each single module can house up to two separate RFBE or RFFE PC boards referred to as

"Side A" and "Side B". RFBE, RFFE and DSP modules fit into the respective slots in a prescribed order, details of which are

available in the DSPbR® user's manual.

Looking from the rear of the repeater, "Side A" PCB is located on the left-hand portion of the module and its corresponding

external N Type termination connector is located top left of the module. The associated "Side B" PCB is located on the right-

hand portion of the module and its corresponding external N Type termination connector is located bottom right of the module.

Note: Some menu headings may

not appear in menus if optional

modules/features are not fitted.



Side A and B Configurations:

When viewing the cover on the side of a module, if there is no marking, then there is no RFBE, RFFE or DSP board on that side.

If the side of a module is labeled with a number, then the number indicates the band of that side.

Follow the colour coding to determine what module type is inserted in each side.

NOTE: It can take a while for a module to be displayed when inserted. This can manifest itself by no module indicated, or '#'

appearing in the band information.

7.2.2 Status – System Alarms (rack overview) & RSSI

Rack Alarms:

A summary of any rack alarms is displayed. To see the alarm details for a rack, click on the rack label (i.e. ‘Master’).

RSSI Alarms:

A summary of all Channel RSSI alarms.

Actual RSSI level is shown for the configured alarm channel.

Alarm indications:

If alarm is blank (white), the rack/alarm is not present.

If alarm is labeled as 'Major' and is coloured Red, then a major alarm has been detected.

If alarm is labeled as 'Minor' and is coloured Amber, then a minor alarm has been detected.

If alarm is labeled as 'OK' and is coloured Green, then no alarm has been detected.



7.2.2.1 Status -- Rack Alarms (rack specific detail)

7.2.2.1.1 Status – Rack Alarms / External Alarms

There are up to four external alarm inputs. If external alarm is not connected, then no alarm is indicated.

7.2.2.1.2 Status – Rack Alarms / Slot & Module Alarms

Alarms are indicated for each side of a slot separately. e.g. Alarm 5B, will be for slot 5, side B.

'Rg+Aux' indicates the Reference Generator and Auxiliary board alarms. This board is located on the rear of the repeater at the

extreme right (Slot 11).

'Ctrl' indicates the Control module. It is located on the front of the repeater.

To see alarm details for a board (side) in a slot, then click on the slot label (i.e. ‘Ctrl’). If module is not present, then alarm details

will not be shown.



When a slot label (i.e. ‘Ctrl’) has been clicked, an alarm code (i.e. 0x0100) and a description of the Fault Type (‘Control channel

RSSI fail’) is displayed.

7.2.2.1.3 Status – Rack Alarms / Power Alarms:

Detailed monitoring obtained from the power supply module which is located on the front of the repeater.

Alarm Indications:

If alarm is blank (white), the slot/side/alarm is not present.

If alarm is labeled as 'Major' and is coloured Red, then a major alarm has been detected.

If alarm is labeled as 'Minor' and is coloured Amber, then a minor alarm has been detected.

If alarm is labeled as 'OK' and is coloured Green, then no alarm has been detected.



7.2.3 Status - Version Register

The rack being viewed is selected in the top drop-down box.

Slot: Version information is indicated for each side of a slot separately. e.g. Slot 4A, will be for slot 4, side A.

'Rg+Aux' indicates the Reference Generator and Auxiliary board. This board is located on the rear of the repeater at the extreme

right (Slot 11).

'Ctrl' and 'Power' indicate the Control and Power Supply modules respectively. They are located on the front of the repeater.



Type: Indicates the type of module present. No text indicates no module is present.

'BE' is a RF Back End and indicates RF transmission (PA) module is present.

'FE' is a RF Front End and indicates RF receive (LNA) module is present.

'DSP' indicates a digital signal processing module is present.

'AC' indicates an mains power supply is present.

'48VDC' indicates a 48V DC power supply is present.

Serial Number: Displays the serial number of the board.

Software Version: Displays the software version of the application software.

Notes: For the Controller, the software version for the application code (before '/') and the GUI version

(after '/') are shown.

For the DSP, the software version for both the application code (before '/') and the FPGA image

(after '/') are shown.

For the DSP, two rows are shown. The first row shows the Main DSP board and the second row

shows the Expansion board (if inserted).

Hardware Version: Displays the hardware version of the board.

For the DSP, two rows are shown. The first row shows the Main DSP board and the second row

shows the Expansion board (if inserted).



7.2.4 Status - Racks

The Inter Rack Linkages are displayed in a matrix format.

If a fiber is not fitted, then this information will not appear.

Details both ends of a fiber termination, which includes the physical termination (Connection field), and bands transmitted from

each termination (Transmitted Bands).



An example of a multi-rack system using fiber interconnection between racks is illustrated as follows;

Connection (rack, side/fiber): Specifies the physical connection for the fiber.

When looking to the rear of the repeater, side A is on the left and side B is on the right.

Fiber link 1 is closer to the edge of the DSP module, while fiber link 2 is closer to the middle of the DSP module.

Transmitted Bands (1, 2): Two bands can be transmitted along a fiber. The bands which will be transmitted are specified.

Observed when mouse placed over Connection information.

Rack Status

Unique Id: Displayed is the unique identifier of each rack connected.

Input Selection to Rack (DSP Side A / B; Band 1 / 2):

Selected band presented into the rack from a connected fiber. If fiber not fitted, then this information will not appear.

DSP Side A <--> B Tx (Band 1 / 2): Specifies what bands are transmitted between the two sides of a DSP module.

Note: Front ends in slots 8 and 9 are connected to side A, while front ends in slot 7 are connected to

side B.



7.2.5 Status – Channels

Each Channel Status page is limited to 4 bi-directional / 8 directional channels. The top drop-down menu field selects the

relevant channel page.

Rack: The rack where the Back End (PA) is located.

BE: Back end (PA).

Freq Out: Output/transmit frequency in MHz

Power(*): Actual maximum power configured in dBm.

In MCPA mode, the configured power will be automatically limited.

If star / asterisk, then an internal combiner is assumed to be present.

If dash / minus, then the channel is not verified and activated.



FE: Front end (LNA).

Freq In: Input/receive frequency in MHz

Gating: Three different gating threshold settings are available:

i) When a "0" is entered in the Gating field, receiver gating is disabled.

ii) When gating is required to an absolute fixed level in dBm, a negative value is entered; the gating is set to the

fixed value as elected below 0dBm. As there is a 3dB hysteresis on a set gating figure the level required to

open the gating is 3dB higher. Gating is activated when the signal drops below the set level. For example; a

setting of -105 will set the channel to gate off at -105dBm and gate on at -102dBm.

iii) Where gating is required to track above a dynamic noise floor, a positive value is entered. This positive

setting must not be used for constant signals from a donor site (e.g. control channels - see note below). This

positive value is the dB level delta above the noise floor at which gating should occur. The 3dB hysteresis

applies and therefore a signal 3dB above this level will open the channel. Positive levels set too low can cause

"receiver chatter" and must be adjusted in + 1dB steps upward until the chattering ceases.

Note: When gating is required to track a dynamic noise floor, the system will automatically track the lowest noise

(and signal) level it receives (per channel) to set the noise floor. The noise averaging algorithm is fast acting

with noise (and signal) levels lower than the current noise floor, and slow acting on noise (and signal) levels

higher than the current noise floor. The DSPbR® cannot distinguish between noise and wanted signal, so if a

continuous high level wanted signal is present, the noise level will eventually adjust to the wanted signal level. Where a

constant signal is present from a donor site (e.g. a control channel), this setting is not appropriate, since the wanted

signal will eventually be gated off.

For constant signals from donor sites gating should be set to 0 (off) or a negative (absolute) gating level.

Positive gating (tracking level above the noise floor) must be set and tested in the presence of typical site noise and not

in a lab environment to get the best results.

• Gain: Maximum gain through the repeater. If set to 'auto', then maximum possible gain is applied.

Note: Gain might be limited by output power limits and configured settings.

• RSSI: Current RSSI (Receive Signal Strength Indicator) level.

• Name Out / In: Name of the channel output / input.

• Delay: The total delay of the DSPbR® in microseconds (µsec).

This includes the inherent delay of the filter and electronics, as well as any additional delay.

• Filter: The digital filter used.

• RSSI (setting): Specify whether the channel is a control channel (RSSI) or not (Non-RSSI).

If control channel, then associated RFFE RSSI alarm signal level threshold is displayed.

• FCC: Channel is to comply with FCC requirements (FCC or Non-FCC).

• Active: If Enabled, the channel will be enabled when activation occurs.



7.2.6 Status – Channels RSSI

The Channels RSSI Status page displays a summary of the channels within the system, in both uplink and downlink directions,

and includes each channel’s Gating threshold and current received RSSI level.

This page assists system commissioning and fault-finding activities. The presence of Rx Desensitisation or the increase of

system noise floor can be seen to change, particularly if as a result of multiple channels being active simultaneously, by viewing

this screen. If the number of channels in the system exceeds the screen display length, additional channel pages may be selected

by the top drop-down selection field.

Rack: The rack where the Back End (PA) is located.

BE: Back end (PA).

Freq Out: Output/transmit frequency in MHz

Power(*): Actual maximum power configured in dBm.

In MCPA mode, the configured power will be automatically limited.

If star / asterisk, then an internal combiner is assumed to be present.

If dash / minus, then the channel is not verified and activated.



7.2.7 Status - Communications

This page reports both the current and stored Communications settings.

Note: Some headings may not appear in menus if optional modules/features are not fitted.



7.2.7.1 Ethernet

• Column heading Stored Value

These are the values stored in the system's non-volatile memory. When the repeater is started or re-started, these

settings will be used if DHCP is disabled, or a DHCP server is not accessible.

• Column heading Currently In Use

These are the values that are in use at present.

• Settings

• DHCP: If enabled, the repeater will attempt to get its IP Address, Subnet Mask and Gateway settings from a DHCP

server. If a DHCP server cannot be found, the stored settings will be used, and the Currently In Use status will show as

disabled.

If disabled, the stored values will be used unconditionally.

• IP Address: The Stored and Currently in Use IP address values.

• Subnet Mask: The Stored and Currently in Use network address mask values.

• Gateway: The Stored and Currently in Use gateway address values.

• MAC Address: The physical MAC address of the unit.

7.2.7.2 SNMP Trap Alarm Reporting

• Manager IP Address: The IP address of the SNMP manager.

• Manager IP Port: The listening port of the SNMP manager.



7.2.7.3 Modem Settings

• Status: Enabled or Disabled.

• Recipient 1& Recipient 2: The recipients of SMS messages.

Can be specified as: Disabled or Alarm Only. If Alarm Only, then the recipient’s number will be displayed.

• PPP: Internet access to the DSPbR.

• Information displayed: Enabled or Disabled, Selected APN, Username and Password login details for PPP protocol

• Network Registration: This shows that the SIM card is recognised by the service provider

• RSSI: Receiver Signal Strength Indication

Use the table below to see the equivalent dBm level for the reported cellular modem RSSI level.

RSSI dBm Condition;

2 -109 Marginal

3 -107 Marginal

4 -105 Marginal

5 -103 Marginal

6 -101 Marginal

7 -99 Marginal

8 -97 Marginal

9 -95 Marginal

10 -93 OK

11 -91 OK

12 -89 OK

13 -87 OK

14 -85 OK

15 -83 Good

16 -81 Good

17 -79 Good

18 -77 Good

19 -75 Good

20 -73 Excellent

21 -71 Excellent

22 -69 Excellent

23 -67 Excellent

24 -65 Excellent

25 -63 Excellent

26 -61 Excellent

27 -59 Excellent

28 -57 Excellent

29 -55 Excellent

30 -53 Excellent

• Alarm Management System Password: This password is used by the Alarm Management System if this feature is

active.



7.2.7.4 Alarm Reporting

• SMNP northbound trap via the Ethernet port: Alarm messages can be sent via a SNMP trap. Enabled or Disabled.

• SMS via cell modem: Alarm messages can be sent via a text/SMS message. Enabled or Disabled.

• Email message via the Ethernet port: Alarm messages can be sent via an email message. Enabled or Disabled.

7.2.7.5 Serial Port

• Baud rate: The baud rate of the serial port on the front of the repeater. The protocol used consists of 8 bits, No parity, 1

stop bit (i.e. 8,N,1), and no flow control.

7.2.7.6 Email Alarms

• SMTP Server Address: IP address of SMTP server.

• SMTP Server Listening Port: The listening port of the SMTP server.

• From Email Address: The email address of the DSPbR.

• Destination Email Addresses: The destination email addresses for DSPbR® alarms.



7.2.8 Status - Trunking Extender

This page reports the current Trunking Extender settings.

Note: Some headings and screen content may not appear if optional modules/features are not fitted.



7.2.8.1 Parameters

• WACN ID: The Wide Area Communications Network ID for both the Donor Site and Trunking Extender.

• System ID: The System ID for both the Donor Site and Trunking Extender.

• NAC Code: The Network Access Code for both the Donor Site and Trunking Extender.

• RFSS ID: The Radio Frequency Sub System IDs for the Donor Site and Trunking Extender.

• Site ID: The Site IDs for the Donor Site and Trunking Extender.

• Default Band Plan: The default band plans for the Donor Site and Trunking Extender. These will used

by default as the band plans for new channels added in the Configuration/Channels page.

7.2.8.2 Primary Control Channel

• Primary Control Channel: The channel entered as the Donor Site's and Trunking Extender's

Primary Control Channel.

7.2.8.3 Secondary Control Channel

• Secondary Control Channel: The channel entered as the Donor Site's and Trunking Extender's

Secondary Control Channel.

7.2.8.4 Traffic Channels

• Traffic Channels: The channels entered as the Donor Site's and Trunking Extender's Traffic channels. Note, channels

that are detected by the Trunking Extender which are not entered will be displayed with the name blank, duplicated

frequency information for the Donor and Extender fields, and the colour of the text set to red.

7.2.8.5 Advertised Adjacent Control Channels – Extender (Updated)

• Advertised Adjacent Control Channels: The channels entered as the Trunking Extender's adjacent site's Control

Channels. Note the information here may differ from that which has been configured as the information is updated

with live data received from the donor site.

7.2.8.6 Advertised Adjacent Control Channels – Donor

• All adjacent control channel data as broadcast from the Donor. This data is used to update the Advertised Adjacent

Control Channel – Extender data (see above).

Note: When the Trunking Extender feature is disabled, "DISABLED" is displayed in the page heading,

all fields will be empty, and no channels are shown (refer Management / Features page).



7.2.9 Status - System

This page reports the current general repeater settings.

7.2.9.1 Racks

• Rack: The number of racks in this system (Master, Slave1, etc)

• Name: The name which identifies each rack in this system.

• Location: The name allocated to the location of each rack in this system.

• Serial Number: The serial number for each rack in this system.

7.2.9.2 System

• Standby battery: If enabled, the repeater's internal backup battery is operational. This allows the repeater to indicate

loss of power (e.g. via output alarm relays or cellular modem). If disabled, the repeater will immediately shut down

when supply power fails.

• Date: The current system date.

• Time: The current system time.

• Frequency Reference Disciplining: Indicates where reference disciplining is expected from. This can be: no

disciplining, GPS disciplining, external reference, DSP A or B fiber 0 or fiber 1.

• Regulatory Modes of Operation: Aspects of international compliance requires limits to be placed on the DSPbR®

operation. The following limits are allowed for:

• ACMA (MCPA mode): In MCPA mode spurious is limited to -30dBm.

• FCC part 90: RFBE limited to 5W maximum output power for non-MCPA mode.

In MCPA mode, spurious is limited to -13dBm.



7.3 Configuration Pages

7.3.1 Configuration - Racks

7.3.1.1 Single (Master) Rack Configuration

Configured as a single (Master) Rack only

• Rack: Corresponding rack. In the example above this identifies the rack which is either a Master if stand alone or

Slave. Slaves connected are allocated corresponding numbers, i.e. Slave 1, 2, 3 etc.

• Unique Id: Displayed is the unique identifier of each rack present. This identifier cannot be modified.

• Input Selection to Rack (DSP side A <--> B; Band 1 / 2). If rack not fitted, then this information will not appear.

Since two fibers can be inserted in each side of the DSP module, up to four bands are available for reception.

A rack is limited to receiving two bands per side.

The first two selection boxes specify the side A received bands on channel 1 and 2 respectively.

The last two selection boxes specify the side B received bands on channel 1 and 2 respectively.

• DSP Side A <--> B (Band 1 / 2): Specifies what bands are transmitted between the two sides of a DSP module.

• The bands can either be local front ends, or bands received from a fiber termination.

• Verify Racks: Click 'Verify' button to verify the rack configuration.

Note: Front ends in slots 8 and 9 are connected to side A, while front ends in slot 7 are connected to side B.



7.3.1.2 Multi-Rack Configuration

Configured as a Fiber-connected Master-to-Slave System

If fiber is not fitted between any of the DSPbR® racks, then the Fiber Terminations information will not appear.

As reported in the inter-rack linkages, details both ends of a fiber termination, which includes the physical termination

(Connection field), and bands transmitted from each termination (Tx Bands).

Connection (Rack; Side-Fiber): Specifies the physical connection for the fiber.

When looking to the rear of the repeater, side A is on the left and side B is on the right.

Fiber link 0 is closer to the edge of the DSP module, while fiber link 1 is closer to the middle of the DSP module.

Tx Bands (Band 1 / 2): Two bands can be transmitted along a fiber. The bands which will be transmitted are specified.

If Summing of bands permitted has been selected in the Maintenance – Features screen an additional selection will appear in

the Tx Bands Band 1 drop down menu.

This selection will allow one frequency band to be routed from a Slave chassis to the Master chassis in a system, where multiple

Slave chassis’ fiber inputs will be summed. This “star” configuration of 2, 3 or 4 Slave chassis connected to one Master chassis

in a ‘star’ configuration is analogous to a typical analogue RF-Over-Fiber (RFOF) system and can be used to operate the same

channels/frequencies from multiple Slave chassis’ to a single central Master chassis.



7.3.2 Configuration – Channels

Configuration within each channel should be done from left to right. i.e.

specify Rack, then BE, etc.

To view other channels, select them from the selection box.

• Rack: The rack where the Back End (PA) is located. Only detected front ends are shown.

• BE: Back End (PA). Only detected Back Ends are shown. (refer below for use of ‘VOID’)

• Freq Out: Output/transmit frequency (in MHz) within the limits of the Back End module.

• Cmb/Pwr: If check box is ticked, then an internal combiner is assumed to be present.

Maximum power in dBm (allowing for an internal combiner) can then be specified.

Maximum power will be limited by number of channels directed to BE (multi-channel

operation), as well as number of BEs connected into a combiner.

Refer elsewhere in this manual for power limits when combiner or multi-channel used.

• FE: Front End (LNA). Only detected front ends are shown. (refer below for use of ‘VOID’)

• Freq In: Input/receive frequency (in MHz) within the limits of the Front End module.

Support for shared Front End/Back End modules. A VHF paging module that provides FE/BE functionality in one

module is now available. This module must be operated in Slot 7 or Slot 8 of the DSPbR® chassis and provides cost-

efficient and space-efficient deployment for uni-directional applications such as paging.

Note: The GUI should have the unused halves of the channel set to “VOID” (as shown below) to remove these fields

from the validation process.



• Gating: Three different gating threshold settings are available:

When a "0" is entered in the Gating field, receiver gating is disabled

When gating is required to an absolute fixed level in dBm, a negative value is entered, the gating is set to the fixed

value as elected below 0dBm. As there is a 3dB hysteresis on a set gating figure the level required to open the gating is

3dB higher. Gating is activated when the signal drops below the set level. For example; a setting of -105 will set the

channel to gate off at -105dBm and gate on at -102dBm.

Where gating is required to track above a dynamic noise floor, a positive value is entered. This positive setting must

not be used for constant signals from a donor site (e.g. control channels - see note below). This positive value is the dB

level delta above the noise floor at which gating should occur. The 3dB hysteresis applies and therefore a signal 3dB

above this level will open the channel. Positive levels set too low can cause "receiver chatter" and must be adjusted in +

1dB steps upward until the chattering ceases.

NB. When gating is required to track a dynamic noise floor, the system will automatically track the lowest noise (and

signal) level it receives (per channel) to set the noise floor. The noise averaging algorithm is fast acting with noise (and

signal) levels lower than the current noise floor, and slow acting on noise (and signal) levels higher than the current

noise floor. The DSPbR® cannot distinguish between noise and wanted signal, so if a continuous high level wanted

signal is present, the noise level will eventually adjust to the wanted signal level. Where a constant signal is present

from a donor site (e.g. a control channel), this setting is not appropriate, since the wanted signal will eventually be

gated off.

For constant signals from donor sites gating should be set to 0 (off) or a negative (absolute) gating level. Positive gating

(tracking level above the noise floor) must be set and tested in the presence of typical site noise and not in a lab

environment to get the best results.

• Auto/Gain: If check box is ticked, then set to 'auto', where maximum possible gain is applied.

If not ticked, then maximum gain is specified. Valid range from 70 to 135 dB for frequency

translating channels and 70-130dB for non-translating channels.

• Name Out / In: Name of the channel output / input. Limited to 16 characters.

• Delay: The total group delay of the channel in microseconds (µsecs). Only whole numbers can be entered. This

includes the inherent delay of the filter and electronics, as well as any additional delay.

• Filter: The digital filter used. If the mouse is rolled over the drop box, details of the selected filter are shown.

• RSSI: Select whether channel (in either direction) is a control channel.

Insert associated RSSI (Receive Signal Strength Indicator) alarm signal level threshold.

• FCC: Channel is to comply with FCC requirements.

• Active: Tick to enable. If enabled, the channel will be available when activation occurs.

• Delete: Delete the corresponding channel.

• Add: Add a channel.

• Save: Save channels that are visible on the GUI.

NOTE 1: It is necessary to save changes first.

NOTE 2: It is necessary to save changes prior to leaving page, adding another channel, or deleting a channel.

• Activate Channels: Click 'Verify & Activate' button to activate all the configured channels. If a channel is configured,

but not enabled, then it will not be activated.



7.3.3 Configuration – Communications

This page provides configurable fields for all Communications settings both current and stored.



7.3.3.1 Ethernet Settings

• DHCP: If enabled, the repeater will attempt to get its network settings from a DHCP server.

Default is Disabled.

• IP Address: IP address in IPv4 format (i.e. aaa.bbb.ccc.ddd)

Default: 192.168.1.200

• Subnet Mask:

Default 255.255.255.0

• Gateway:

Default 192.168.1.254

7.3.3.2 Modem Settings

• Status: Checked if Enabled. Default is Disabled

• SMS Text Alarming

The formats for SMS Text Alarms can be selected as follows;

General Text Alarm

Gives detailed module fault information in the default format.

These are general text messages that may be sent and read directly from a mobile phone screen.

The following messages are supported;

Invalid module inserted, Status=Fault ON|OFF

SFlash fail, Status=Fault ON|OFF

EEPROM fail, Status=Fault ON|OFF

28V rail fail, Status=Fault ON|OFF

7V2 rail fail, Status=Fault ON|OFF

Battery fail, Status=Fault ON|OFF

System verification fail, Status=Fault ON|OFF

Control channel RSSI fail, Status=Fault ON|OFF

Possible fibre connection issue, Status=Fault ON|OFF

Custom (long) Text Alarm

Gives specific module fault information, in a legacy format for compatibility with existing installations.

Many messages are supported. The format of a message is; the source module (CT = Controller)

and the failure type and its status. Examples are;

CT:Invalid module inserted=FAIL|OK

CT:Control channel RSSI fail=FAIL|OK

Custom (short) Text Alarm

Gives module fault information in the same format as legacy BTR/BCR systems. As the number and

detail of legacy BCR/BTR alarms is greatly less than is available for the DSPbR, the DSPbR® alarms

have been summarised for compatibility with the BCR/BTR format’

Examples are;

PW:Power=FAIL|OK

BT:Standby Battery=FAIL|OK

• AMS Enabled

This should be selected if using the BCR/BTR Alarm Management System (AMS).

The format of an AMS compatible alarm message is a proprietary binary format.

Alarm management system messages will be sent to Recipient 1.



• Recipient 1: Enter Cell phone details

• Recipient 2: Enter cell phone details

The recipients of SMS messages; Can be specified as - Disabled, Alarm Only

If Alarm Only, then the recipients' number will need to be specified.

Only "Recipient 1" will be used for Alarm Management System if this feature is enabled.

• PPP: Configures Internet access to the repeater.

• Start PPP: Enable Modem PPP communication

• Stop PPP: Disable Modem PPP communication

• APN String Edit: Enter a new APN string here.

Modem can store up to 6 APN strings. The APN string entry requires a number between 1 to 6 at

the beginning.

Modem PPP should be disabled during APN change.

Update APN List: Use update APN List button to save the new APN string to modem.

Example of APN string: telstra.internet

If unsure about APN string, contact service provider.

• Username and Password: Login details for PPP protocol.

Use the "Save" button at the bottom of the page for any modifications on PPP parameter settings to take effect.

• Alarm Management System Password: This password is used by the Alarm Management System if this feature is

active. Password can be 1 to 8 characters long and should use capital letters between A to Z or numbers from 0 to 9.

7.3.3.3 SNMP Trap Alarm Reporting

• Manager IP Address: IP address in IPv4 format (i.e. aaa.bbb.ccc.ddd), Default: 0.0.0.0

• Manager Listening Port: The listening port of the SNMP manager, Default Port: 162.

7.3.3.4 Alarm Reporting

Alarms can be reported as: SNMP northbound trap via the Ethernet port, SMS (text) message via the inbuilt cellular modem,

Email message via the Ethernet port. Check the appropriate box to enable the required method of alarm reporting.

7.3.3.5 Serial Port

Baud rate: The baud rate of the RS232 serial port on the front of the repeater. Default: 115200 bps

7.3.3.6 Email Settings

• SMTP Server Address: IP address in IPv4 format (i.e. aaa.bbb.ccc.ddd)

• SMTP Server Listening Port: The listening port of the SMTP manager, default is Port 25.

• From Email Address: The email address of the DSPbR.

• Destination Email Addresses: The destination email addresses for DSPbR® alarms.



7.3.4 Configuration – Trunking Extender

This page provides configurable fields for the Trunking Extender settings.

Note: Some headings may not appear in menus if optional modules/features are not fitted.



7.3.4.1 Parameters

• WACN ID: The Wide Area Communications Network ID for both the Donor Site and Trunking Extender.

• System ID: The System ID for both the Donor Site and Trunking Extender.

• NAC Code: The Network Access Code for both the Donor Site and Trunking Extender.

• RFSS ID: The Radio Frequency Sub System IDs for the Donor Site and Trunking Extender.

• Site ID: The Site IDs for the Donor Site and Trunking Extender.

• Default Band Plan: The default band plans for the Donor Site and Trunking Extender. These will used

by default as the band plans for new channels added in the Configuration/Channels page.

7.3.4.2 Advertised Adjacent Control Channels - Extender

• Advertised Adjacent Control Channels: The channels entered as the Trunking Extender's adjacent site Control

Channels to be advertised.

To advertise a new Adjacent Control Channel, select a band plan from the Band Plan drop down, and then enter a

frequency in either the Rx Freq or Tx Freq fields. The channel number is automatically calculated. Finally, enter the

RFSS ID in the RFSS field and the SITE ID in the SITE field.

Notes:

• If neither the Rx Freq nor Tx Freq is entered, the channel is discarded when you save.

• If the RFSS field is left blank, the RFSS ID will be set to 1 by default when you save.

• If the SITE field is left blank, the SITE ID will be set to 1 by default when you save.

• To delete an Adjacent Control Channel delete the Rx Freq/Tx Freq values then SAVE.

• The Trunking Extender will only advertise Adjacent Control Channel details that are entered in this table, any

extra Adjacent Control Channels that are detected will be ignored.

• Extra Adjacent Control Channels entered here that are not detected by the Trunking Extender will still be

advertised, but the information will not be updated if the status of the adjacent site changes.

• The Primary Control, Secondary Control, and Traffic Channels are nominated on the Configuration/Channels

page.

Note: When the Trunking Extender feature is disabled, "DISABLED" is displayed in the page heading,

all fields will be empty, and no Adjacent Control Channels are shown (refer Management / Features page).



7.3.5 Configuration – System

This page provides configurable fields for the System settings.

• System Configuration page, Name & Location: User specified string, indicating the name and location of a rack.

• Standby battery: The repeater's internal backup battery is operational. Default is Disabled. Under enabled condition

backup battery is also used for powering modem. DSPbR® can report alarm using the modem even during power

outage situations.

• Date: The desired system date in Day, Month and Year order.

• Time: The desired system time in Hour, Minute and Second order. The time automatically increments to allow for

accuracy.



• Frequency Reference Disciplining:

DISABLED: This option disables alarms related to GPS and external reference signals.

Note: an external reference signal will be ignored (if connected) but if a GPS antenna is fitted the system will be

disciplined to the GPS signal.

GPS ENABLED: This option enables GPS related alarms and disciplines the system by the GPS signal. Any external

reference signal will be ignored (if connected).

External Reference enabled: This option enables external reference related alarms and disciplines the system by an

external reference signal. Should the external reference be removed, the system will still discipline to a GPS signal (if

GPS antenna fitted).

DSP A FIBRE 1, DSP A FIBRE 2, DSP B FIBRE 1 or DSP B FIBRE 2: These options enable synchronization data

sent across either Fiber 1 or Fiber 2 to DSP A or DSP B, to discipline the system. This allows a master Reference

Generator to discipline other Reference Generators.

• Fast Gating Response:

ENABLED: This is the default setting for this feature and applies to VHF models only. This option changes the gating

in the VHF RFBE module(s) so that the output stage is continuously active (not controlled by the gating function) to a

faster channel Tx rise time in support of some new models of subscriber products. Overall channel signal gating is still

provided by the DSP module itself, and power consumption in all VHF channels fitted to the chassis will increase as a

result of selecting this feature.

DISABLED: This option disables the continuously active state of the VHF RFBE module(s) so that it remains under

gating control. Typical Tx rise time for a VHF RFBE with this feature disabled is ~10mS typical.

• Auto Activation:

ENABLED: This option selects whether replacement (or new) modules have their configuration automatically updated

(called ‘auto-push’) by the Controller module when they are inserted into a chassis. This feature assists in maintenance

activities. However, if the Controller module is the module replaced into the chassis, all other modules may have their

configurations updated from this inserted Controller module’s current selected and active configuration – which may be

different from the configuration required by the chassis in its current installation.

DISABLED: This is the default setting for this feature. This option disables the ‘auto-push’ function of the Controller

module. If disabled, replacement (or new) modules fitted to the DSPbR® chassis must be manually configured for the

current configuration required by the module in the current installation.

• Regulatory Modes of Operation:

Aspects of international compliance require limits to be placed on the DSPbR® RF Output Power and operation. The

following limits are allowed for:

ACMA (MCPA mode): In MCPA mode spurious emissions are limited to -30dBm.

FCC part 90: RFBE limited to 5W maximum output power for non-MCPA mode.

In MCPA mode spurious emissions are limited to -13dBm.



7.3.6 Alarm Matrix

The DSPbR® reports alarms via SMS, email or SNMP. Alarms can be user categorized to Major, Minor or Disabled.

An alarm matrix is provided for the user to prioritise these respective modules' alarms. The alarm matrix covers the following

alarmed modules and additional facilities.

Module Alarm Priority

The module alarms can be configured as Major, Minor or Disabled. GUI uses the following colours to indicate various alarm

priorities

• Major - Red

• Minor - Yellow

• Disabled - Alarm is not reported

Module Alarm Reporting Medium

Following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP. GUI page

"Configuration - Communications" provides the configuration page required to input the remote destination addresses.

SMS Alarm Messaging

Human readable alarm SMS messages can be sent to two appointed recipients. The multi-band cellular modem option must be

fitted in order to facilitate this. The modem can be configured via the Communications Configure page – Modem Settings. For

alarm notification via SMS messages enable the setting tick box under the Alarms configuration page. Assuming a permanent

TCP/IP network connection, or a PPP connection via the cell modem, once an alarm has been received via SMS, the recipient can

access the alarm details on the Alarm Status page via the web browser GUI interface.

Note: Some menu headings may not appear in menus if optional modules/features are not fitted.



Email Alarm Messaging

Alarms will be emailed to recipients as configured under the Configuration \ Communications section of the GUI. Up to a total of

4 recipient email addresses can be entered.

SNMP Alarm Messaging

Customised SNMP Alarm “North Bound” traps can be configured via the Configure \ Communication page where the SNMP

server/s address and listening port number can be configured.

An additional feature is provided in the way of a Periodic SNMP service which generates an unsolicited SNMP North bound trap

to indicate the general status of the DSPbR® at a predetermined time. The time period at which this SNMP is sent is configured

via the drop-down menu on the Alarm Matrix – Periodic SNMP page.

Please ensure you receive the correct DSPbR® SNMP MIB files for the firmware baseline being used. DSPbR® MIB files may

be downloaded from the RFI web site or contact your nearest RFI Sales office.

7.3.6.1 Alarm Matrix - Reference Generator Module



7.3.6.2 Alarm Matrix - RFFE Modules

• Module Alarm Priority:

The module alarms can be configured as Major, Minor or Disabled. GUI uses following colours to indicate various

alarm priorities,

Major - Red

Minor - Yellow

Disabled - Alarm is not reported

• Module Alarm Reporting Medium:

The following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP GUI page

"Configuration - Communications" should be used for the remote destination address



7.3.6.3 Alarm Matrix - RFBE Modules


The module alarms can be configured as Major, Minor or Disabled. GUI uses following colours to indicate various alarm

priorities

Major - Red

Minor - Yellow



The following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP GUI page

"Configuration - Communications" should be used for the remote destination address.



7.3.6.4 Alarm Matrix – DSP Module


The module alarms can be configured as Major, Minor or Disabled. GUI uses following colours to indicate various

alarm priorities,

Major - Red

Minor - Yellow



The following communication mediums are used to report the alarms to a remote destination, SMS, Email and SNMP

GUI page "Configuration - Communications" should be used for the remote destination address



7.3.6.5 Alarm Matrix – Fiber Expansion Module / Trunking Extender


The module alarms can be configured as Major, Minor or Disabled. GUI uses the following colours to indicate various

alarm priorities,

Major - Red

Minor - Yellow





Note: Some screen content may not appear in menus if optional modules/features are not fitted.



7.3.6.6 Alarm Matrix – PSU



alarm priorities

Major - Red

Minor - Yellow







7.3.6.7 Alarm Matrix – Controller Module



alarm priorities,

Major - Red

Minor - Yellow







7.3.6.8 Alarm Matrix – External Alarms

• External Alarms: There are up to four external alarm inputs. Each alarm input requires a shorting to ground to

activate the respective alarm.

External alarms can be configured as Major, Minor or None. If an external alarm occurs, a corresponding alarm will

be generated.

A custom label name can be applied to each external alarm.



7.3.6.9 Alarm Matrix – Periodic SNMP

• SNMP Summary: Enable / Disable Periodic SNMP summary alarms

• Time Period: Select the time period from the drop-down list, default is 1 minute



7.4 Maintenance

The DSPbR® has the following maintenance screens



7.4.1 Features Management

This page allows the enabling/disabling of the optional features in the repeater.

To enable or disable a feature, tick the associated check box.

MCPA mode is the DSPbR’s Multi-Carrier Power Amplifier mode of operation. This feature allows multiple channels to be

assigned to a single RF Back End (RFBE) for low power operation.

Summing of bands permitted is a multi-rack feature that allows multiple Slave racks to be operated from a single Master rack in

a star configuration. The same RF channel frequencies may be assigned from multiple Slave Chassis’ RFFE to a single Master

chassis RFBE. This is analogous to analogue RF-Over-Fiber (RFOF) where multiple remote units may have the same

frequency(s) being received and output back to the donor network via a single headend unit.

Trunking Extender is a feature that requires an optional Trunking Extender circuit board to be fitted to the DSP module. When

fitted, this circuit board is automatically detected, and the associated Trunking Extender headings are visible in the Status and

Configuration menus of the GUI.



7.4.2 Files Management

This page allows the maintenance of files that operate the DSP based Repeater.

A list of the permitted file types is shown as examples with the relevant prefix and extensions.



7.4.2.1 Uploading firmware

New firmware upgrades can be loaded via the GUI interface. Whether you know the file location source address or wish to have

the option to browse for the file, both upload options are available.

When upgrading module or GUI firmware (.tfs), the following procedure is followed

• File upload: 'Browse' for and select the file to upload. Expected file types are: .FCF (filters), .CFG (configuration),

.BIN (application) and RBF (FPGA image). Press the 'Send' button. Files are stored in the repeater.

The file will then appear in the file list. An exception is the controller application, which is automatically

updated.

Base Line firmware upgrades will normally include the uploading of 2 file types. The first is the Controller

.BIN file and the second is the GUI .tfs file.

Certain BL upgrades may require additional module specific firmware to be included in the upgrade process.

Refer to RFI for assistance.

Base Line upgrades are applied to both DSPbR’s when fiber linked and configured in a “Master”, “Slave”

arrangement. There is no Master or Slave specific firmware as DSPbR’s can be configured for both roles.

7.4.2.2 Filter profiles

Filter profiles will be available for selected analogue and digital modulation schemes and channel bandwidths. The filter profile

header will bear the name of the technology. Ensure you have the correct technology profile and channel bandwidth for your

application

7.4.2.3 Downloading Configuration Files

NOTE: Valid characters in filename are: A-Z, a-z, 0-9, - (dash) and _ (underscore). No spaces are permitted.

If an invalid filename is specified, the file is not saved and the GUI page will reappear with no changes evident.

Synchronize: After a file is uploaded, it is not automatically made active. Synchronization involves distributing the specified file

to the relevant modules in the DSPbR® and activating them. The synchronization process is done in the background and can take

a little time. Select the application or filter type to activate. Press the 'Synchronize' button

• View: Select the file to view from the list. Press the 'View' button.

The file's contents will be shown in a new window or tab. Use the browser's save page functionality to store

the file.

More than one configuration file can be saved and loaded into the DSPbR®

All CFG and CHK file data is human readable.

WARNING:

Before proceeding with upgrading the DSPbR firmware, it is strongly recommended confirming

compatibilities of the proposed upgrade with currently operating versions. Some incompatibilities exist,

particularly with older and customised firmware versions.

Please contact your nearest RFI Sales Office for further information on your current firmware version,

and its compatibility with the proposed upgrade version.



• Load Config: Select the .CFG file to load from the list. Press the 'Load Config' button

If the configuration file exactly matches the current configuration, then the filename is displayed.

• Delete: Select the file to delete from the list. Press the 'Delete' button

• Save Configuration to File: Type in a new configuration file name (must end in .CFG). Limited to 25 characters.

Press the 'Save Config' button, Configuration is saved to the repeater and will be displayed in the file

library.

NOTE: Valid characters in filename are: A-Z, a-z, - (dash) and _ (underscore). No spaces are permitted.

7.4.2.4 Generate History Log

A current history log file can be generated and loaded into the on-board files folder, downloadable or viewed on line. Navigate to

GUI Maintenance \ File Management page.

Press the 'Generate History Log' button to generate or overwrite the DUMP.LOG file.

This file can then be viewed by selecting from the list and pressing 'View' button. History log is saved to the repeater.

History data in time and date order for each module in sequence will be saved to the file. Alarms and events will be in a human

readable format and can be separated. This file is downloadable as a standard text file. Should assistance be required in reading

this data, please refer to [email protected]

7.4.3 User Management

This page allows the maintenance of users that can access the repeater.

Only users at 'view status and settings' and 'modify settings' can be edited from this web page. If a higher user level needs to be

modified, this must be done from the command line.

To change a username and password: Type in new username in 'Name', type in new password in 'Password'.

Confirm the new password by typing the same password into 'Confirm Password'. Both entries of the password must match.

Click on 'Apply'.



7.4.4 Test Alarms

The Alarm simulation and testing feature provides a method by which the DSPbR® alarm transmission can be tested once

configured. The test alarm is a pseudo Controller Module Alarm where the module although not faulty provides a simulated

alarm for a test period of approximately 1 minute.

There will be an initial delay from anywhere between 10 and 30 seconds before activation.

Test Ctrl Alarms: Press this soft button to simulate controller alarms



7.4.5 Alarm Event Log

This page creates a textual format Alarm Event log to assist in the identification and analysis of fault conditions. The Alarm

Event Log is maintained in the Controller module, and alarms from the other modules in the DSPbR® chassis are periodically

updated and collated by the Controller module.

To ensure an up-to-date listing is available for viewing or display, the Update Alarm Log button initiates an update by the

Controller from all the other modules.

Example Alarm Event Log



7.4.6 System Checkpoint

This page allows restoring the DSPbR® repeater's configuration to a previously known checkpoint.

View: Select the .CHK file to view from the list. Press the 'View' button.

The file's contents will be shown in a new window or tab.

• Load Config: Select the .CHK file to load from the list. Press the 'Load Checkpoint' button.

• Delete: Select the file to delete from the list. Press the 'Delete' button

• Copy any .CHK file to a .CFG or Configuration File:

Type in a new configuration file name (must end in .CFG). Limited to 25 characters.

Press the 'Save Config' button, Configuration is saved to the DSPbR.

To view the saved configuration, go to Maintenance/ Firmware page.

NOTE: Valid characters in filename are: A-Z, a-z, - (dash) and _ (underscore). No spaces are permitted.



7.4.7 Restart

Restart Repeater: Press the 'Restart' button to restart the entire system with existing settings.

Default Settings: Press the 'Default' button to set the entire system to default settings.

NOTE: the IP address information is not defaulted. This can be done in the 'Configure -> Communications' page.

7.5 Logout



7.6 HELP Screens

A comprehensive set of Help screens are available throughout the DSPbR® GUI. On any page, click the Help button to display

the available information.



8. UPGRADING FIRMWARE

IMPORTANT

Note: It is important to confirm the compatibility of the hardware (i.e. modules) and firmware revisions currently

fitted into an existing DSPbR® in the field – PRIOR to attempting an upgrade to any later firmware revision.

Transitions may be required through specific intermediate firmware versions when upgrading from an earlier

firmware version to a later one.

In isolated cases, particularly where firmware has been developed and supplied for customised applications, later

revisions of the product’s generic firmware may be incompatible and attempting to upgrade such customised units

to later firmware revisions may result in performance issues – such as the loss of the original customised features.

Please contact RFI prior to upgrading any DSPbR® to confirm any compatibility issues with any later firmware

revision releases.

ALWAYS CHECK THE SERVICE BULLETIN FOR THE INTENDED UPGRADE

REVISION PRIOR TO COMMENCING AN UPGRADE TO ENSURE THERE ARE NO

PRE-REQUISITES OR SPECIAL INSTRUCTIONS RELATING TO THE INTENDED

UPGRADE.

General

To use the upload and other firmware upgrade procedures described in this document, you need to use a PC connected to

the DSPbR® via either a Network or locally via an Ethernet cable. You will need to know the IP address of the DSPbR®

and you must be able to communicate with the DSPbR® using a PC running Internet Explorer version 8 or higher. You

will also need the password required for admin login.

Before You Start

It is strongly recommended that you save the DSPbR® configuration to the internal file system before you perform any

firmware upgrades. Furthermore, it is also recommended that all internally saved configuration files be backed up to your

PC. The procedures to perform these backups are provided below.

Important: If you are upgrading the DSPbR® GUI file system (.TFS file), you MUST perform both of the save

and backup steps as described above because the upgrade process deletes all internally saved user configuration

files from the DSPbR. After a GUI file system upgrade, the DSPbR® configuration will have to be restored and

reloaded from your saved backup.

Once you have saved and made backups of the DSPbR® configuration files, you should firstly check the versions of the

current firmware versions in the DSPbR® and then proceed to upgrade the individual module’s firmware as required.

If you upgrade the GUI file system, you will have to restore the backed-up user configuration files you saved to your PC

and reload, verify and activate one of these.

After any firmware upgrade, you will also have to perform a Channel Verify & Activate operation to clear any “Required

module not detected” alarms.



Save All Configuration Files

1. Type the DSPbR® IP address in the Internet Explorer address bar and press the Enter key.

2. Login as Admin.

3. To save the current system configuration to a file, click on the Maintenance menu and select the Files submenu.

4. Locate the textbox below the heading “Save Configuration to File”.

5. In the textbox, type a name to save the configuration file with .cfg extension as shown in the screenshot below.

6. Press the “Save Config” soft button. Once saved, the file name will appear in the file list as indicated below.

File List

Textbox



7. To back up a configuration file to your PC, select the required configuration file from the file list and click the “View” soft

button.

8. The contents of the configuration file will appear as a new tab as shown below (Example: “test123.cfg”).

9. Using the “Save Page As” option in the web browser, save this text file with same name as the original configuration file

(example: “test123.cfg”), ensuring the .cfg extension is preserved. This will create a backup copy of configuration file on

your PC that can later be uploaded to the DSPbR® if required.

10. Repeat steps 7, 8 and 9 above for any other existing internal configuration files that you wish to preserve.



Firmware Version Check Procedure

1. Type the DSPbR® IP address in the Internet Explorer address bar and press the Enter key.

2. Login as Admin.

3. Check the firmware version click on the Status menu and select the Version Register submenu. As shown in the

example below, the controller (CTRL) Firmware version is 2.2.



GUI File System Version Check Procedure

1. To check the GUI version, navigate to the Maintenance menu and select the Files submenu.

2. Click on the “version/info.txt” option and press the “View” soft button. The GUI file system information will be

displayed in a new tab.



3. An example GUI version page is shown below with the current version indicated in the top line of the text.



Controller Firmware Upload Procedure

1. Select the Maintenance menu from the menu bar on the left and select the Files submenu.

2. This will open the “File Management” page as shown below.

3. On the “File Management” page, select “Choose File” soft button to open the file selection dialog box.

4. Select the appropriate firmware file (example: “CTRLSS_APP_3_6.BIN”).

5. The selected file name appears beside the “Choose File” soft button.

6. Press the “Send” soft button to start the file upload process.

7. The upload process takes about 3 minutes. During the upload process, the progress bar may start and stop several times,

but it is advisable to wait for the full 3 minutes.

Note: During the upload process, do not refresh or click any soft button on the DSPbR® GUI as this could lead

to file corruption.

8. After the upload process is completed, check the new firmware version by repeating the steps described in Firmware

Version Check Procedure above.



Update Module Firmware

1. Select the Maintenance menu from the menu bar on the left and select the Files submenu.


3. On the “File Management” page, select the “Choose File” soft button to open the file selection dialog box.

4. Select the appropriate module firmware file (example: “REFGEN_V1_8.BIN”).


6. Press the “Send” soft button to start the file upload process. After the file transfer has completed, the file will appear in

the file list box.

7. The upload process takes about 3 minutes. During the upload process, the progress bar may start and stop several times,

but it is advisable to wait for the full 3 minutes.

Note: During the upload process, do not refresh or click any soft button on DSPbR® GUI as this could lead to

file corruption.

8. To load the firmware into each of the modules, select the required firmware file in the file list box.

9. Click the “Synchronise” soft button to commence the module firmware update process. This will update all modules in

the DSPbR® which are compatible with the selected firmware file.

10. After the upload and synchronise processes have been completed, check the new firmware versions by repeating the

steps described in Firmware Version Check Procedure.



GUI File System Upload Procedure

1. Click on the Maintenance menu on the menu bar on the left and select the Files submenu.


Warning

Updating the GUI file system will delete all existing files in the internal file system – including any

additional files (such as Filter Profiles) that may have been loaded into the DSPbR’s file system

Ensure you have saved any configuration files to your PC that you wish to preserve, and that you have

replacement copies of any additional files (such as Filter Profiles) before proceeding.




4. Select the appropriate GUI file (example: “CTRLSS_FS_5_2_.TFS”).


6. Press the “Send” soft button to start the file upload process.

7. The upload process takes about 3 minutes. During the upload process the progress bar could start and stop couple of

times but it is advisable to wait for the full 3 minutes.


to file corruption.

8. After the upload is completed, check the new GUI version by repeating steps described in GUI File System Version

Check Procedure.

9. After updating the GUI file system, you will need to restore each of the backed-up user configuration files you

previously saved on your local PC as described in the following Restore and Reload Backed-up Configuration Files

section.

Restore and Reload Backed-up Configuration Files

1. Click on the Maintenance menu on the menu bar on the left and select the Files submenu.





4. Select the required configuration file to restore (example: “myconfig.cfg”).


6. Press the “Send” soft button to start the file restore/upload process.

7. The configuration file upload process will only take a few (usually less than 10) seconds to load.


to file corruption.

8. Repeat steps 1 through 7 for each configuration file you wish to restore from your PC.

9. When all the configuration files have been restored to the DSPbR® internal file system, one configuration file must be

loaded in preparation for the Verify and Activate process.

10. To reload a DSPbR® configuration file, select the required file in the file list box, and press the ‘Load Config’ button

below the list box.

11. Finally, perform the steps in the following Activate the Previous Configuration section.

Activate the Previous Configuration

1. To clear the “Required module not detected” alarm and to activate a reloaded configuration, a Channel Verify &

Activate operation is essential.

2. From the Configuration menu, select the Channels submenu. This will open the Channel Configuration Overview

page as show below.

3. On this page, locate the soft button called “Verify & Activate” towards the middle portion of the page and click this

soft button.



4. The system will initially perform a channel verification check and upon successful verification, the GUI will display

the “Confirm Channel Activation” page requesting confirmation from the user to activate the channels as shown below.

5. Click the “Confirm” soft button to begin the channel activation process. This could take a few minutes depending on

the number of configured channels. At the end of a successful channel activation process, the “Required module not

detected” alarm will disappear.

6. To confirm that all the spurious alarms have been cleared, click on Status menu and select the Alarms option. With all

the spurious alarms cleared, the page will look as shown below.



9. SNMP

TCP/IP NETWORK

HUB HUB

DSPbR SNMP SERVER

Figure 30: SNMP Interface to DSPbR

9.1 Main Features:

1. Supports Northbound SNMP v2 traps

2. Accepts up to two MIB server addresses and ports

3. Individual module level event selection for the SNMP trap

4. GUI based configuration

9.2 Configuration Procedure:

1. Load the RF-INDUSTRIES-MIB and RFI-DSPBR-ALARM-MIB files on the MIB server

2. Find the MIB Server's IP address

3. Attach the DSPbR® to the network and complete the web-based login procedure

4. From the DSPbR® GUI select the Configurations / Communications menu (fig.1)

5. This will open the Communications Configuration page

6. On this page locate the heading call “SNMP Trap Alarm Reporting”

7. Under this heading enter the primary MIB server's IP address and port number

8. The default port number for SNMP is 162

9. The secondary MIB server's IP address is optional

10. Under the heading “Alarm reporting enable”, tick the check box call “SNMP Northbound Trap”

11. Use “Configurations–Alarm Matrix” menu to open the individual module alarm selection page(fig.2)

12. The alarm selection page is used to select the events on a module that will trigger the SNMP trap

9.3 Testing SNMP trap:

1. From the DSPbR® GUI select “Maintenance – Test Alarms” menu (fig.3)

2. This will open the “Alarm simulation and Testing” page

3. On this page press the button call “Test Ctrl Alarms” to simulate alarm condition for the controller

4. Monitor on the SNMP server for the trap notification



9.4 MIB Message Format:

Description

SNMP V2c northbound Trap functionality is supported by the DSPbR® products using baseline 5.0 (and above)

firmware.

The DSPbR® Rebroadcast Repeater SNMP Interface is defined by the following MIB files:

RF-INDUSTRIES-MIB.txt

RFI-DSPBR-ALARM-MIB.txt

The RFI-DSPBR-ALARM-MIB file provides details of the various objects (OIDs) within every trap that is sent

whenever an alarm status change occurs.

The dspbrAlarmType object (1.3.6.1.4.1.32327.2.2.1.1.2) defines 9 different types of traps.

Every trap includes the following objects:

Trap Objects

dspbrAlarmRack

OID 1.3.6.1.4.1.32327.2.2.1.1.2.1

Syntax Integer

Description Provides the DSPbR® Rack Number from 0 to 7 – where;

0 is the Master rack

1 to 7 are the Slave rack(s)

dspbrAlarmModuleType

OID 1.3.6.1.4.1.32327.2.2.1.1.2.2

Syntax Integer

Description Provides the module type in the rack that has generated the alarm – where;

1 is the Ref Gen

2 is a RFFE

3 is a RFBE

4 is the DSP

5 is an Expansion Module

6 is the PSU

7 is the Controller



dspbrAlarmModuleNumber

OID 1.3.6.1.4.1.32327.2.2.1.1.2.3

Syntax Integer

Description Provides the module number in the rack that has generated the alarm – where;

1 is the Ref Gen, PSU and Controller

1 or 2 for the DSP and Expansion modules

RFFE 1 to 6 – based on the slot position in the rack

RFBE 1 to 16 – based on the slot position in the rack

dspbrAlarmStatus

OID 1.3.6.1.4.1.32327.2.2.1.1.2.4

Syntax Integer

Description Identifies the type of alarm that this trap relates to.

Controller Status Bits

0x0001 Invalid Module Inserted.

0x0004 SFlash Fail.

0x0008 EEPROM Fail.

0x0010 28V Rail Fail.

0x0020 7V2 Rail Fail.

0x0040 Battery Fail.

0x0080 System Verification Fail.

0x0100 Control Channel RSSI Fail.

0x0400 Required Module Not Detected.

0x0800 Possible Fibre Connection Issue

Reference Generator Alarm Bits

0x0002 No GPS Antenna.

0x0004 Antenna Overload.

0x0008 GPS Lock Lost.

0x0010 GPS Not Yet Locked.

0x0020 No External Reference.

RFFE Alarm Bits

0x0001 Temperature Out of Range.

0x0002 VCO Unlocked.

0x0004 LNA Current Outside Range.

0x0080 Non-Volatile Memory Fail.

RFBE Alarm Bits

0x0001 Temperature Out of Range.

0x0002 VCO Unlocked.

0x0040 Digital Pot Failure.

0x0080 Non-Volatile Memory Fail.

0x0100 Shutdown due to Over-Temperature

0x0200 28V Rail Outside Range

0x0400 28V Rail Shutdown due to Over-Temperature



DSP Alarm Bits

0x0001 Temperature Out of Range

0x0002 Non-Volatile Memory Fail

0x0004 File System Invalid.

0x0008 FPGA Fail.

0x0010 Shutdown due to Over-Temperature

EXP and Trunking Extender Alarm Bits

0x0001 Temperature Out of Range (Expansion Module only)

0x0002 Non-Volatile Memory Fail (Expansion Module only)

0x0004 File System Invalid (Expansion Module only)

0x0008 FPGA Fail (Expansion Module only)

0x0010 Shutdown due to Over-Temperature (Expansion Module only)

0x0200 Control Channel Invalid (Trunking Extender only)

0x0400 NAC invalid (Trunking Extender only)

PSU Status Bits

0x0001 Inverter 1 Fail




0x0100 Auxiliary Voltage Rail Fail

0x0200 4V Rail 1 Fail

0x0400 4V Rail 2 Fail

0x0800 Temperature Out of Range

0x1000 Fan 1 Fail

0x2000 Fan 2 Fail

0x4000 Shutdown due to Over Temperature

0x8000 Extended Shutdown due to Over Temperature

dspbrAlarmDescription

OID 1.3.6.1.4.1.32327.2.2.1.1.2.5

Syntax Text String

Description This is a brief textual description of the alarm status. The included detail depends on the alarm

type.

The following are examples:

Alarm Condition is 28V Rail Fail … Textual Description = 28V rail fail

dspbrAlarmState

OID 1.3.6.1.4.1.32327.2.2.1.1.2.6

Syntax Integer

Description The alarm status for this trap.

A value of 1 is OK

A value of 2 is FAIL.



dspbrAlarmDateTime

OID 1.3.6.1.4.1.32327.2.2.1.1.2.7

Syntax Date and Time

Description The time stamp for when this trap was sent.

dspbrAlarmMibVersion

OID 1.3.6.1.4.1.32327.2.2.1.1.2.8

Syntax Integer

Description This identifies the MIB file version

dspbrAlarmSummary

OID 1.3.6.1.4.1.32327.2.2.1.1.2.9

Syntax Text String

Description The textual description of the current alarm summary for each rack.

The following is an example:

Rack0 = Major; Rack1=-; Rack2=-; Rack3=-; Rack4=-; Rack5=-; Rack6=-; Rack7=-;

SNMP Configuration

SNMP communications and Northbound Trap enabling is configured on the Configuration/Communications page

in the DSPbR® GUI.

Configurations – Communications Menu



Alarm Events Configuration

Alarm events that will generate SNMP Northbound Traps are configured on the Configuration/Alarm Matrix

pages in the DSPbR® GUI. Examples are;

Configurations – Alarm Matrix Menu (controller page)

Alarm Testing

Alarm events may be tested from the Maintenance/Test Alarms page in the DSPbR® GUI.

Maintenance – Test Alarms



One ‘Server Side’ software package that can be used for SNMP Northbound Trap monitoring and testing is called “Manage

Engine MibBrowser”.

It is available from the manufacturer’s website for download;

http://www.manageengine.com/products/mibbrowser-free-tool/index.html

Following are the screenshots for this software, with the RF-INDUSTRIES-MIB and RFI-DSPBR-ALARM-MIB MIB files

loaded.

An example Illustration of three trap events on the Trap Viewer

Details of one of the trap events

http://www.manageengine.com/products/mibbrowser-free-tool/index.html



Configurations, Communications Menu, Page 1

Configurations, Communications Menu, Page 2



10. Multi-Carrier Power Amplifier (MCPA)

10.1 Multi-Carrier Power Amplifier (MCPA) Operation

The RFI DSP based repeater (DSPbR®) is designed to accommodate up to eight RF power amplifier back-end modules

(RFBE’s). Each RFBE module has two sides, Side A and Side B, with each side having a separate power amplifier. The power

amplifiers in each RFBE module can produce up to 46dBm output power per carrier (frequency band and modulation scheme

dependent) when configured for a single carrier.

While the DSPbR® is capable of up to 8 full power bi-directional channels, some installations do not require such high output

power levels per carrier, typically in the Uplink mode facing the donor site. When the requirement calls for lower output power

levels (typically ≤+15dBm per carrier) the DSPbR® can be configured to pass up to 12 carriers through a single power amplifier

(MCPA) with a limit per chassis of a total of 12 bi-directional or 24 directional channels in MCPA Mode.

This multi-carrier feature provides the following benefits over single-carrier operation:

• Removes the requirement for external combining hardware normally required for multi-channel operation.

• Reduction of the cost, weight and power consumption of the repeater as fewer RFBE modules are required.

• Reduced output power per carrier for low power DAS systems and RF-over-fiber interfaces, eliminating the need to

reduce output power levels with external attenuators.

When the DSPbR® is configured to operate with multiple carriers on an RF output port, each carrier still has individual and

programmable gain, a selectable channel filter profile, gating and output power level settings below the maximum allowable.

10.2 Performance

Multiple carriers passing through any power amplifier will produce unwanted intermodulation distortion (IMD) products. To

ensure all interfering signals are within local regulatory limits the power per carrier in the DSPbR® must be accurately

controlled. The DSPbR® has a sophisticated digital power control system which precisely limits the power level for each carrier,

thus ensuring unwanted IMD products are always at predictable levels.

10.3 Power levels per carrier

The DSPbR® allows for configuration of power levels per MCPA carrier that will produce IMD products which exceed

regulatory limits, to cater for applications where regulatory limits do not apply (e.g. tunnels, underground mines or remote areas

where interference with other communications equipment operating on adjacent frequencies is not an issue).



Figure 30: Example of RFBE’s performance with 12 carriers

The example represented in Figure 30 shows 12 carriers configured to pass through one RF power amplifier. The blue Australian

‘ACMA Compliant’ trace shows that with 13dBm per carrier, the worst case IMD products are not exceeding the required -

30dBm level. The green USA ‘FCC Compliant’ trace shows the same RFBE module with an increased power per carrier

capability of 21.5dBm (increased by 8.5dB), at worst case the IMD products are not exceeding the required -13dBm level. The

difference between these two regulatory examples allows an additional 8.5dBm output level per carrier, but with a resulting 17dB

increase in the level of IMD products.

This corresponds to an increase in IMD products of 3dB for every 1dB increase in power per carrier through a DSPbR® RFBE

module; a rule of thumb that can be used to predict RF output versus IMD levels for other regulatory or design requirements.

NOTE: The results in Figure 1 show a worst case IMD scenario, since the carriers are equally spaced. Judicious spacing of

carriers could improve the IMD performance of RFBE modules.

10.4 Number of carriers

When the number of carriers through a RFBE module is reduced, the IMD products decrease. This allows for an increase in the

power per carrier while still complying with spurious emission limits.

Figure 31: Examples of RFBE’s with 8 and 4 carriers respectively



As can be seen in the illustration, when the number of carriers is reduced from 12 to 8, the power per carrier can be increased by

2dB and still comply with the example ACMA -30dBm spurious emission limit. If the number of carriers is further reduced to 4

(see Figure 3), the RF output power can be increased to 17dBm per carrier.

NOTE: the plots shown above represent typical performance of DSPbR® RFBE modules and were captured by continuously

sweeping for 2 minutes in peak hold mode. Actual performance may vary between RFBE modules.

10.5 Configuring the MCPA Feature

MCPA Functionality in the DSPbR® is enabled in the Features page under the Maintenance/Features tab in the GUI.

When enabled, the MCPA feature in the DSPbR® will be allow the mapping of more than one specified channel to an elected RF

Back End (RFBE). This process is configured in the Channels page under the Configuration tab in the GUI. In the following

example, two frequencies have been assigned the Uplink RFBE (slot 1B).



Once configured such that more than one channel points to a selected BE (RFBE) in either UL or DL, the “SAVE” and then

“VERIFY & ACTIVE” process is followed.



The DSPbR® will present the “Has the configuration been saved” popup message box to confirm that the “SAVE” process was

followed.

Click “OK” to confirm it was.



The DSPbR® will present the “Confirm Channel Activation Screen”

A pop up will appear to warn the user of the time it may take to load the configuration. Press “OK” to continue.

If the mapping is successful, the Channel Configuration Completed screen will appear.

Press “Back” and navigate to the “STATUS” Channels page to confirm configuration settings



11. Maintenance

11.1 Access

Access to the DSPbR® should be restricted and an access alarm notification (door contact) can be generated using one of the

external alarm interfaces and transmitted via any of the optional and available means. Refer to Alarm Interface circuit diagram

and the Alarm Configuration page in the GUI.

11.2 Module Replacement

The CSC will auto configure RFFE or RFBE modules of the same type if replaced into the same slot as a previous RFFE or

RFBE module. If the type / band is different, a manual re-configuration will be required. The DSP module can also be replaced

whilst the DSPbR® is powered, however all communications will be interrupted until such time as the DSP module is connected

back into service within the sub-rack frame.

11.2.1 Module replacement self-check

To confirm connection and operation of a replaced or new DSP, RFFE or RFBE module, connect to the DSPbR® via the

required web browser log in and navigate to the Status\Current Hardware page under the status tab.

For quick reference, the LCD panel on the front of the CSC module will indicate modules detected and enabled through the

sequence described under Section 7.2

11.3 PSU replaceable fuses

For detailed information on replacing the internal replaceable PSU fuses, please refer to Section 5.3.2 of this manual

The DC PSU has current limiting protective circuitry and therefore no replaceable fuses that may blow in a similar fashion to the

AC PSU.

11.4 Fans and Fan filters

Temperature Management

The hottest module within the DSPbR® sub-rack frame adjusts the fan speed. All modules except for the CSC have temperature

sensors. Low temperatures are not given limits and are therefore not alarmed.

Both front mounted cooling fans have removable dust filters, which will require periodic cleaning. These filters are accessible

from the front of the DSPbR® buy carefully levering off the plastic fan covers by hand.

Figure 32: Fan cover removal



No special tools are required to remove the plastic fan covers and dust filters. A mild soap wash and dry should be sufficient to

clean the dust filters. Should they be perished in any way, please replace them. The fan dust filter part number is located under

the part number section of this user manual.

11.5 RF input and output port identification

It is very important to identify and mark for future reference the configured input ports on the BPF / RFFE modules and output

ports of the RFBE / BPFM’s.

These ports are allocated during the uplink and downlink channel configuration procedure via the GUI; refer to the Individual

uplink and downlink channel configuration pages. A better understanding of the configuration options in terms of slot

architecture is detailed in examples given in Annexure A.

The configured port allocations can be viewed on the Individual channel status pages.

Removable and reversible yellow plastic label cards are inserted into recessed apertures at the rear of the DSP module, and at the

rear of the BPFM’s attached to the RFFE and RFBE modules. The 8-Way combiner filter block has provision for one of these

yellow plastic label cards.

Use a black fine tipped permanent marker to write the respective port allocations on the yellow plastic label cards. It is advisable

to do this only after a successful configuration upload.

The upper port is on the left-hand side of the BPFM module is Side “A” (looking at the back of the DSPR from the rear) and the

lower port on the right-hand side of the module is Side “B”

Side B Port

Side A Port Blank plastic marking label

Figure 33: User defined Yellow Label Marking System



11.6 DSPbR® spare modules and ancillary equipment part numbers

Part Numbers Description

DR1005A SUB RACK FRAME 4RU DSP

DR1011A DUST FILTERS FAN (PAIR)

DR1012A FAN GUARD (PAIR)

DR1013A BLANKING PANEL DSP REP

DR1014A LABEL SET YELLOW REUSE 10XFLTR/CMBR + 2XDSP

DR1072A PSU INLET MODULE 110VAC (C19 - 15A)

DR1071C PSU INLET MODULE 240VAC (C14 - 10A)

DR1073A PSU INLET MODULE DC

DR1074A FUSES 10A DELAY (10 PK) 20X5MM AC PSU

DR1061B PSU 110-240VAC

DR1065A PSU 48VDC

DR1066A PSU 24VDC

DR1064A POWER CORD AU IEC320-C14-10A

DR1063A POWER CORD US IEC320-C19

DR1041C CSC UNIVERSAL

DR1051A CABLE STD ETHERNET 2M RJ45 - RJ45

DR1052A CABLE CAN BUS 500MM RJ11-RJ11

DR1111A DSP MODULE 4 CHNL OUT 2 BAND IN EXPANDABLE

DR1121A DSP MODULE 4 CHNL OUT 2 BAND IN + FIBRE I/FACE

DR1112A DSP MODULE 8 CHNL OUT 3 BAND IN EXPANDABLE

DR1122A DSP MODULE 8 CHNL OUT 3 BAND IN + FIBRE I/FACE

DR1123A DSP MODULE 8 CHNL OUT 3 BAND IN + 2 x FIBRE I/FACE

DR1151A FIBRE INTERFACE EXP MOD

DR1160A FIBRE TRANSC MULTI-MODE

DR1161A FIBRE TRANSC S-MODE MP

DR1162A FIBRE TRANSC S-MODE HP

DR1164A CABLE FIBRE MM 1M

DR1165A CABLE FIBRE MM 2M

DR1166A CABLE FIBRE SM 1M

DR1167A CABLE FIBRE SM 2M

DR1022B REF GEN & AUX MODULE C/W GPS RX & CELL MODEM

DR1032A ANTENNA ACTIVE GPS

DR1033A ANTENNA CELLULAR MODEM MULTI-BAND 800-2100MHZ

DR1034A CABLE COAX RG142 500MM SMA(M)-SMA(M)




DR1291A RFFE 162+162MHz


DR1491A RFBE 162+162MHz

DR1495A ½ RFBE 162+162MHz


DR1496A ½ RFBE 142+142MHz

DR1493A RFFE 142 / RFBE 142 (Special VHF Paging Uni-Directional Module)

DR1201A RFFE 410+410MHZ

DR1401A RFBE 410+410MHZ

DR1601A BPFM 410+410MHZ

DR1801A COMB/FILTER 8-WAY 410MHZ



DR1604A BPFM 410+510MHz

























































Table 6: DSPbR® module and parts table



11.7 Recommended minimum spares listing

For a single sub-rack DSPbR® system, the recommended spares listing would comprise one of each of the module types as

follows;

1 PSU Module

24V DC

48V DC

110-240VAC

2 CSC Universal

3 DSP Module

4 Ch 2 Band Expandable

8 Ch 3 Band Expandable

4 Ch 2 Band Expandable + F/I

8 Ch 3 Band Expandable + F/I

8 Ch 3 Band Expandable + 2 x F/I

4 RF Gen Module

RF Gen + Aux + Modem

5 RFFE Module

1 Spare module for each sub-band in use

6 RFBE Module

1 Spare module for each sub-band in use

7 SFP Module (Fibre links)

Table 7: Recommended Minimum Spares Listing

Note: Only one RFFE or RFBE replacement module per band is recommended where more than one module is used.

Passive components such as the Band Pass Filter modules or 8-Way combiner filter block modules typically have long reliable

lifetimes and are therefore not included in the recommended spares list. Customers should design if they wish to purchase and

hold spares of these items.

The centre mounted plug in backplane within the DSPbR® rack frame is integral to the sub-rack frame and is not considered a

field-swappable or field-repairable and is therefore not listed separately. The DSPbR® sub-rack frame is not on the minimum

recommended parts list but should be considered for adding if a complete set of spares is desired.

Note: R F Industries Pty Ltd (RFI) has a diverse range of duplexers and filters, external combining, lightning protection, cables,

connectors and antenna products to support the design and deployment of the DSPbR.

Please refer to our on-line product information www.rfiwireless.com.au, or contact your nearest RFI Sales office for further

information and assistance.

http://www.rfiwireless.com.au/



12. FAQ

12.1 Connectivity:

12.1.1 TCP/IP Ethernet connection

Q: Is a standard or crossed Ethernet jumper cable used to connect a laptop/notebook directly to the DSPbR?

A: Although the DSPbR® will communicate via either a standard or crossed over Cat 5, 5e or 6 jumper cable, a standard

Ethernet jumper cable is provided with the DSPbR® which is terminated both ends with RJ45 termination connectors to connect

between the laptop/notebook. The front or rear mounted Ethernet port can be used to connect to the DSPbR.

12.1.2 GUI Interface - Compatible Web browser programs

Q: What web browser programs are compatible with the on-board web server?

A: All standard web browsers used on OS platforms such as Windows, Linux and Mac.

Q: It appears that some of the GUI navigation pages are missing and or there is corrupt information displayed on the GUI page,

might this be a web browser compatibility issue?

A: Possibly, however try clearing your internet pages cache via your tools tab prior to changing to another web browser.

12.1.3 Master Slave DSPbR® configuration

Q: In an expanded sub-rack frame configuration, will the Master via the GUI interface configure Front End and Back End

modules within the nominated slave configured DSPbR® sub-rack frames?

A: Yes, the entire channel configuration is done via the nominated master DSPbR, therefore channel configuration and status

pages will not appear in the GUI navigation menu of the slave DSPbR’s.

12.1.4 RS232 and USB Interface

Q: What is the RS232 and USB interface on the front panel of the DSPbR® CSC used for?

A: Currently, only Command Line Interface (CLI) is available through the RS232 and USB connection interfaces, which is done

at factory level only. The TCP/IP RJ45 Ethernet connectivity for access to the GUI is intended for the customer interface.

12.1.5 SNMP Interface

Q: Is the DSPbR® capable of communicating via SNMP?

A: Yes, however this is only via North Bound traps to a dedicated SNMP server. The DSPBR® is not enabled to respond to

South bound SNMP traffic. Agent MIB Files are available for the SNMP server.

12.1.6 Cellular Modem

Q: Is the internal battery back-up supply located in the CSC, used to provide back-up power to the cellular modem or will this

require an additional dedicated battery back up?

A: The CSC internal single backup battery supplies power to both the controller and the cellular modem for up to 4 hours, this

however must be enabled via the GUI once installed.

12.1.7 Configuration via SMS

Q: Can the DSPbR® be configured using SMS messaging?

A: No. Although SMS’s are optional for sending alarm alerts, configuring the DSPbR® using SMS’s is not a currently available

feature.



12.2 DSPbR® Modules

12.2.1 General

Q: What will happen if either an RFFE and/or RFBE is removed or re-inserted whilst the DSPbR® is on?

A: The RFFE’s and RFBE’s are designed to be removed and inserted whilst the DSPbR® is “on”, hence the term “Hot

Swappable”. Once inserted the module will communicate with the controller and establish its identity. The CSC will then auto

configure the new or replaced module based on the previous module’s configuration if it is the same type of module and same

slot.

Q: What will happen if either the DSP or Ref Gen + Aux modules are unplugged and re-inserted?

A: When you unplug the Ref Gen + Aux module, the system will lose reference and go into stand-by and then go back live when

you plug the Ref Gen + Aux back in. Similarly, when you unplug the DSP module the system will go quiet and resume normal

operation about a minute after you have plugged the DSP module back in.

12.2.2 RFFE

Q: Can an RFFE module be supplied with only one board in one of the respective Sides?

A: No, none of the RFFE’s or RFBE’s for that matter are currently supplied with only one side fitted.

Q: Is only one RFFE required for all channels in the same sub-band?

A: Yes. If they are all in either the DL or UL and sourced from the same antenna or input, then only one RFFE is required. You

do not need one RFFE per channel.

Q: Can Uplink and Downlink RFFE boards in different bands be paired within the same RFFE module?

A: Yes, this is possible, different bands are available back-to-back, please refer to the parts list.

Q: Is the RFFE BPFM also used for RFBE’s?

A: Yes, there is no difference between BPFM’s used on the front end of RFFE’s and the Back End of RFBE’s if they are paired

correctly for the relevant sub-band.

12.2.3 RFBE

Q: Can an RFBE module be configured for a single channel in one direction only?

A: Yes. However, as all RFBE’s have both sides of the module populated, one side will not be used unless it is configured for the

opposite direction in a bi-directional duplex channel.

Q: Can uplink and downlink RFBE boards be paired within the same module?

A: Yes, this is possible, not only in the same band but in two different bands, i.e. where frequency translating between bands is

used. Please note that the bolted on BPFM must be frequency sub-band compatible.

12.2.4 Setting the Uplink and Downlink RFBE RF output power levels

Q: Can the RF output power levels of any channel be set within a dB?

A: Yes! The incremented RF output power levels on any channel can be adjusted in 1dB steps from +30dBm to +46dBm. Please

note that this is the power setting out of the RFBE and does not include the insertion loss through the BPFM nor optional 8-Way

Internal combiner filter. Some bands have lower output power capability

When an internal 8-Way Combiner Filter Unit is fitted, this power level is adjusted according to the provided table under Chapter

5.3.9 Table 3 of this User’s Manual

Q: Is the indicated level in dBm via the GUI, the actual output power level at the external connector at the rear of the DSPbR?

A: No! This indicated power level is the output from the RFBE module within an approx. 0.5dB margin. This level is then fed

either via the BPFM (Band Pass Filter Module) with the respective losses (+/- 1dB), which must be added to estimate the output

power at the rear of the DSPbR. An 8-Way internal combiner filter module would add an additional +/- 11.5dB of loss to the

RFBE output figure.



12.2.5 Ref Gen + Aux

Q: How can it be ascertained whether the GPS clock reference disciplining has been activated and locked?

A: When an active GPS antenna is connected to the appropriate SMA (F) port on the Ref Gen + Aux module, the connection is

auto-sensed. This auto-sensing and enabling function cannot actually be disabled. Should there be no GPS signal and the

“Disable” radio button is activated in the “System Configuration” screen – a minor alarm will not be initiated. Should the “GPS

Enable” radio button be activated, and signal is not sensed from the GPS antenna input or the clock reference is not disciplined,

then a minor alarm will be activated.

Q: Is it possible to locate the DSPbR's position in the field via the GPS Receiver.

A: No, this function has not been facilitated within the current DSPbR® version.

12.2.6 External 10MHz clock reference:

Q: How is the external 10MHz clock reference initiated and checked to see if it is locking the clock reference?

A: The external 10MHz signal reference is enabled through the Web browser GUI interface via the “Systems Configuration”

page “Ext Ref enable” button. Should this button be activated, and the clock reference signal not disciplined via this means, then

a minor alarm will be initiated.

Q: How is the 10MHz clock reference carried to the Ref Gen + Aux modules of additional “Slave” sub-rack frames?

A: Using a 50 Ohm coaxial jumper cable +/- 500mm in length terminated with SMA Male connectors. These are daisy chained

Ext Ref input to output.

Q: Is the frequency disciplining from a master configured DSPbR® linked to the slave configured DSPbR’s?

A: Yes, this is facilitated and configured via the identified fibre link between them.

12.2.7 CSC

Q: Is there a backlight on the LCD display for dark environments?

A: Yes.

Q: How is the backlight activated?

A: By pressing the Mode Button located immediately underneath the LCD screen on the CSC module.

Q: What happens to the LCD display and backlight if the AC or DC power is turned off?

A: The LCD display, backlight and information will continue to be powered by the backup battery (if the backup battery has

been enabled via the GUI) for as long the battery has enough power.

Q: What are the functions of the LCD display?

A: When the DSPbR® is switched on the RFI Logo is displayed with a backlight on for up to 45 seconds.

After this initial period, the logo stays on and the backlight turns off. Pressing the Mode Button once will activate the backlight.

With sequential Mode Button pressing, the following real time current information is written and displayed within the 4 lines of

the LCD screen

Second Press: Current IP Address/Subnet /Gateway/MAC address

Third: Set Date and Time

Fourth: PSU rail voltage / battery voltage

Fifth: Modules detected and enabled

Sixth: Module temperatures

Seventh: RSSI levels per channel

Depressing the mode button for more than 5 seconds will present the reset options screen.

Exit Menu

Normal reset

Factory reset

Factory+IP reset

LatestCheckpt



Q: In which module are the back-up batteries located?

A: In the front located CSC module.

Q: How can the condition of the internal back up battery be checked?

A: The internal backup battery voltage reading is currently available through the front panel LCD screen.

Q: Would the back-up batteries require periodic replacement?

A: The back-up batteries are trickle charged when in service and meant to last the lifetime of the unit. They are not considered

field replaceable.

Q. How is the back-up power supply in the CSC module enabled once the unit is installed in the field?

A: Via a tick box on the “System Configuration” page of the GUI interface.

Q: What is the RS232 connector on the CSC used for?

A: Factory access using CLI (Command Line Interface).

Q: What is the USB Type B port on the CSC used for?

A: Factory access using CLI (Command Line Interface) and should the Ethernet ports not be usable, the user with the assistance

of the technical support team from RFI can interface for diagnostic and firmware uploading purposes.

Q: What is the RJ11connector on the CSC used for?

A: This is the CAN bus interface which is provisioned for alarm only connectivity between co-located master/slave configured

DSPbR’s in a possible future upgrade.

12.2.8 DSPbR® Slot Architecture

Please refer to Appendix “A” the section of the DSPbR® User’s Manual, illustrating slot architecture configuration

possibilities.

Q: Can an RFFE and RFBE be installed into any available slot within the sub-rack frame of the DSPbR?

A: No, there are rules which need to be followed. The architectural rules are illustrated in Appendix A.

Q: How are the slots numbered?

A: From left to right looking at the DSPbR® from the rear.

Q: Into what slots can the RFBE’s be installed?

A: This depends on whether you have a 4Ch 2 Band DSP module or an 8Ch 3 band DSP module.

The 4Ch 2 Band DSP module is installed into side A of the DSP module housing which is connected to slots 1, 2, 5 and 6,

therefore installing an RFBE into slot 3, 4, 7 or 8 will not configure.

The 8Ch 3 Band DSP module uses both sides of the DSP module housing which means that any of the available ports from 1 to 8

can be used.

Q: Can an RFFE or RFBE be configured as both sides DL or UL?

A: Yes

Q: Can an RFFE or RFBE be configured as one side UL and the other side DL?

A: Yes

Q: Is there a preferred order in which the slots are populated into the DSPbR®

A: There is a preferred order for populating the available slots within the DSPbR® and is illustrated in Appendix A. This is

however largely dictated to by whether the DSPbR® has been configured with an internal uplink or downlink 8-Way combiner

filter and or configured for split UL and DL in an RFFE/RFBE or contiguous UL and DL in the respective modules.

Q: Will all slots take any module?

A: No. Not all slots accommodate any module. Slots 1 to 8 accommodate RFBE’s with slot 9 accommodating only an RFFE.

Slots 7 and 8 are dual purpose RFFE or RFBE. Slot 10 accommodates only the DSP module.



Q: What are the minimum modules required in a DSPbR® sub-rack for expansion purposes excluding band and channel RFFE

and RFBE modules?

A: For a DSPbR® sub-rack to function correctly for channel band expansion. The sub-rack requires the sub-rack frame, which

includes the internal centrally mounted mother board, a PILM module, matching the PSU voltage module, PSU Module, CSC

Controller module, Ref Gen + Aux module, and a DSP module.

12.2.9 Channel Gating Threshold Configuration Settings

Q: What are the differences in the channel gating threshold methods?

A: Three different channel gating threshold settings are available. Refer to the Channel Configuration “overview screen” under

the “Configure” tab of the GUI.

i) When a “0” is entered within the gating field, receiver gating is disabled.

ii) When gating is required to an absolute fixed level in dBm, a negative value is entered the gating is set to the fixed

value as elected below 0dBm. For instance, a fixed gating threshold level. As there is a 3dB hysteresis on a set gating

figure the level required to open the gating is 3db higher. Gating is activated when the signal drops below the set level.

For example, a setting of –105 will set the channel to gate off at –105dBm and gate on at –102dBm.

iii) Where gating is required to track above a dynamic noise floor, a positive value is entered. This positive setting must

not be used for constant signals from a donor site (e.g. control channels). This positive value is the dB level delta

above the noise floor at which gating should occur. The 3dB hysteresis applies and therefore a signal 3dB above this

level will open the channel. Positive levels set too low can cause receiver chatter and must be adjusted in +1dB steps

upward until the chattering ceases.

When gating is required to track a dynamic noise floor, the system will automatically track the lowest noise (and signal) level it

receives (per channel) to set the noise floor. The noise averaging algorithm is fast acting with noise and signal levels lower than

the current noise floor. The DSPbR® cannot distinguish between noise and wanted signal, so if a continuous high level wanted

signal is present, the noise level will eventually adjust to the wanted signal level. Where a constant signal is present from a donor

site (e.g. control channel), this gating method is not appropriate since the wanted signal will eventually be gated off.

For constant RF level signals from a donor site, it is recommended that the gating should be set to an absolute level +/- 3dB

below an estimated fade margin level.

Positive gating (tracking level above the noise floor) is subjective and must be set and tested in the presence of dynamically

changing site noise and not in a lab environment to get the best results.

12.2.10 DSPbR® Channel / Band Expandability

Q: Is it possible to expand past the triple band, 8 or 12 bi-directional channel, configuration maximum of one DSPbR® sub-rack

frame?

A: Yes, a second or third or more slave DSPbR® sub-rack frame can be added to a DSPbR® sub-rack frame configured as a

master. This is achieved by connecting the two or more sub-racks using the DSP fibre interconnect optional facility.

Each subsequent co-located sub-rack frame can be daisy chained via fibre expanding both band and channel capacity.

Q: When a slave (2nd DSPbR) unit is used to add additional channels to the first 8 channels on a DSPbR, does the second unit

retain its own IP address?

A: Yes, each DSPbR® daisy chained for expansion will retain its own allocated IP address.

Q: When connected via the Ethernet connection to a configured master DSPbR, is it possible to have the same connectivity via

this port to all the connected slave DSPbR’s?

A: No. Only the channel configuration and alarms of the respective slave DSPbR’s are accessible via the master DSPbR.



12.2.11 Alarm Communication and Management

Q: How are alarms communicated from the DSPbR?

A: Via SMS, configured email, SNMP and on board galvanically isolated N/O or N/C Major and Minor alarm relay contacts

accessible via a DB15 socket from the rear of the DSPbR® on the RefGen + Aux module.

Q: How is the alarm detail communicated via SMS?

A: Human readable text.

Q: How are external alarms interfaced into the DSPbR® and how are they communicated?

A: Four (4) external alarm inputs are interfaced into the DSPbR® via the DB15 socket on the RefGen + Aux module. These

alarm events are reported in the same way as the internal alarm events are reported.

Q: On set up, can an alarm condition be artificially activated to test the alarm reporting method?

A: Yes, an alarm test button is provided which is activated via the on-board GUI.

Q: Is a MIB file available from RFI for an SNMP server?

A: Yes. Ensure you get the latest MIB files relevant to the Base Line of firmware.

12.2.12 Temperature Measurement and front mounted cooling fans:

Q: Do the front mounted cooling fans require any maintenance?

A: There are washable dust filter elements located under the front plastic covers at the opening aperture of both fan assemblies.

The plastic filter covers can be removed by hand.

These filters can be periodically removed and washed in warm, mild soapy water, rinsed thoroughly, dried and replaced. Should

the filter elements be torn or degraded in any way, they will require replacing. Please do not replace these filters with any other

filter type. This may inhibit airflow and significantly increase the operating temperature.

Q: What are the replacement part numbers for the plastic fan covers and dust filters?

A: Part numbers for all the components and modules are provided in the relevant section of this User’s Manual.

Q: Can the DSPbR® measure the ambient room or enclosure temperature?

A: No. There is no specific ambient temperature sensor provisioned for the DSPbR.

Q: Where are the internal temperature measurement points within in the DSPbR?

A: Within each RFBE, RFFE, in each PSU Inverter, at either end of the PSU heat sink, DSP module and Ref Gen + Aux module.

Q: If the temperature within an inverter goes too high, will the inverter automatically shut down?

A: Yes

Q: What temperature sensor or sensors drive the fan speeds?

A: The fans speed is dependent on the hottest module (RFBE or DSP). The fan that blows much of the air over the respective

module will work the hardest to maintain a preferred temperature level.

Q: Does the DSP, CSC and Ref Gen + Aux modules have temperature-sensing capability?

A: All modules except the CSC have temperature sensors.

Q: Is there a minimum temperature consideration that is measured and alarmed?

A: No, however it is unlikely that the temperature range will fall below –30Deg C in an operational DSPbR® which is self-

heating with its own generated heat.

Q: What thermal protection is provided to the PSU?

A: There is a thermal shut down capability within each rail voltage inverter within the PSU.



12.3 AC Mains Power Supply

Q: What would the maximum current draw be when powering the DSPbR® from a 110V AC power source?

A: 14 Amps fully loaded and operating at max power (no internal combiner) on all channels.

Q: What would the maximum current draw be when powering the DSPbR® from a 240V AC power source?

A: 7 Amps fully loaded and operating at max power (no internal combiner) on all channels.

Q: Is the primary AC mains power supply fused and are the fuses changeable?

A: Yes, the primary mains AC power supply is fused for both 110VA and 240VAC versions. Essentially the PSU is the same for

both 110V AC and 240VAC primary voltage versions, however the Power Inlet Module is different. Three AC fuses are located

on the PSU module, which in turn is mounted into the 19” rack front mounting panel. The fuses are marked as F1, F2 and F3. All

three fuses are accessible by loosening the relevant six front panel mounting screws as illustrated in the photograph and sliding

the PSU unit out far enough to disconnect the power cable and remove the PSU unit in order to safely inspect and replace where

necessary any of the fuses.

Q: What alarm condition would be expected should any one of the three PSU fuses blow?

A: Primary AC PSU Inverter F1 / F2 or F3 failed.

Q: What is the specification for the replacement fuses?

A: All three replaceable fuses are the same, Refer to RFI Spare parts listing within this DSPbR’s User’s Manual. Alternative fuse

specification – Littelfuse Part no 0234010.P Cartridge 10A medium delay 20mm x 5mm OD ceramic fuse.

Q: How should the DSPbR® be connected to an AC power source?

A: In Australia, it is recommended that the provided 2 metre IEC320-C13 power chord is plugged into a dedicated 10 Amp rated

and switched mains socket. It is advisable to feed this socket via an independent 15 Amp rated “D” curve circuit breaker.

A: In the USA, it is recommended that the provided 2.5 metre IEC320-C19 to 5-15P power cord is plugged into a dedicated 15

Amp rated and switched mains socket, and that this mains socket is fed via an independent 15Amp rated “D” curve circuit

breaker.

Q: Is there an ON/OFF power switch on the DSPbR?

A: No, the DSPbR® has no ON/OFF switch either on the front, nor the rear, it is recommended that the DSPbR® is powered up

and down via the wall socket mains switch into which the power cord is plugged, or alternatively via a circuit breaker which

should feed only the DSPbR® repeater mains power.

Q: Should the RFBE or RF combiner output connectors be terminated prior to switching the DSPbR® on?

A: Yes. It is important, although there is an isolator in circuit, to protect the RFBE PA’s (RF Power Amplifiers) that the outputs

are all terminated into either the desired coax cable and antenna or 50 Ohm termination load.

Q: Is it necessary to terminate the RFFE (RF Front End) prior to switching the DSPbR® on?

A: No, this is not necessary.

Q: Once the repeater has been connected and AC or DC power is supplied to the unit how long will it take to boot-up and initiate

the RFBE’s (RF Back End RF power amplifiers)?

A: Approximately 45 seconds



12.4 DC Power Supply

Connecting the DSPbR® Repeater to a DC power source

Q: How should the DSPbR® be connected to a DC power source?

A: Via the 85Amp rated Phoenix HDFK 16A connector block situated at the rear of the DSPbR® sub-rack frame underneath the

Ref Gen + Aux module using 6AWG gauge +ve / -ve identifiable cable for a 24VDC source and 10AWG cable for a 48VDC

source.

Q: What is the estimated current draw using a primary 48V DC supply with all downlink RFBE’s set to +45dBm and uplink

+40dBm?

A: 2 Channel Bi-directional DSPbR® – 9 Amps, 4 Channel Bi-directional DSPbR® – 15 Amps, 6 Channel Bi-directional

DSPbR® – 23 Amps, 8 Channel Bi-directional DSPbR® – 30 Amps

12.5 Earthing

Q: What earthing facility is provided on the DSPbR?

A: A dedicated M6 earthing stud is provided on the bottom right hand side looking at the DSPbR® from the rear on the

respective ASC or DC PILM module. We recommend the use of a 16mm² green and yellow sheathed copper cable terminated

with a crimped 16mm² / M6 hole cable crimp lug, connected to a common earthing point in the 19”

rack.



13. Appendices DSPbR® Slot Architecture – Typical Configurations



14. Supporting Information For additional support information on the DSPbR® series products including;

DSPbR® Product Brief

DSPbR® Application Notes

DSPbR® User Manual

DSPbR® Service Bulletins

DSPbR® Firmware Upgrade Files (in ZIP format)

DSPbR® SNMP MIB Files

please visit the RFI website at:

http://www.rfiwireless.com.au/repeaters-rebroadcast/repeaters/pmr-repeaters.html

Test Drive the DSPbR® GUI by visiting: http://203.46.35.190

Level 1: Username: user

Password: user

Level 2: Username: admin

Password: admin

Please note that this unit is not connected to a “live” network and may be test driven and programmed

without impact. This unit may be off-line periodically for maintenance purposes or Internet connectivity

outage.

If you cannot connect to this unit, please contact your nearest RFI Sales office so we can ensure it is

available for your test drive.

Contact Information

If you would like more information on the DSPbR® product and its applications, please contact your nearest

RFI Sales Office.

For more information on RFI products, please visit us at http://www.rfiwireless.com.au/

http://www.rfiwireless.com.au/repeaters-rebroadcast/repeaters/pmr-repeaters.html

http://www.rfiwireless.com.au/



15. User Notes

table of contents...5.2.3 13th january 2015 5.2.4 27th january 2015 5.2.5 29th january 2015 5.2.6...

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