ra-1900_qi_1-1-0

INSTALLATION GUIDE FOR RA-1900

RA-1900 QI Copyright - refer to title page Page 1ENU Status : 1-1-0

INSTALLATION GUIDE

The information contained herein is the responsibility of and is approved by the following, to whom all enquiries should be directed in the first instance:

Technical Writing Comba Telecom Ltd.

This is an unpublished work the copyright in which vests in Comba International ("Comba"). All rights reserved. The information contained herein is confidential and the property of Comba and is supplied without liability for errors or

omissions. No part may be reproduced, disclosed or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied.

RA-1900 GSM1900 OPTICAL BAND SELECTIVE

REPEATER



0.2 CONTENTS

Section Page

0.2 CONTENTS...........................................................................................................................2 0.3 INDEX TO FIGURES AND TABLES .....................................................................................4 0.4 HISTORY...............................................................................................................................6 0.5 ISSUE CONTROL .................................................................................................................7 0.6 REFERENCES ......................................................................................................................8 0.7 GLOSSARY OF TERMS .......................................................................................................9 0.8 SAFETY NOTICES AND ADMONISHMENTS....................................................................10 0.9 SERVICING POLICY AND RETURN OF EQUIPMENT .....................................................11 0.10 READERS COMMENTS .....................................................................................................12

1 GENERAL INFORMATION .................................................................................................13

2 EQUIPMENT DESCRIPTION..............................................................................................15 2.1 SYSTEM DIAGRAM ............................................................................................................15 2.2 TYPICAL APPLICATIONS ..................................................................................................16 2.2.1 SINGLE FIBER CONFIGURATION ....................................................................................16 2.2.2 DUAL FIBER CONFIGURATION ........................................................................................18 2.3 EQUIPMENT LAYOUT........................................................................................................22 2.4 EQUIPMENT CONSTITUTION ...........................................................................................24 2.5 KIT OF PARTS ....................................................................................................................25

3 INSTALLATION ...................................................................................................................27 3.1 WARNINGS AND ALERTS .................................................................................................27 3.2 SITE PLANNING CONSIDERATIONS................................................................................28 3.2.1 REPEATER INSTALLATION CHECKLIST .........................................................................29 3.3 INSTALLATION PROCEDURES ........................................................................................30 3.3.1 GOODS INWARDS INSPECTION ......................................................................................30 3.3.2 TOOLS.................................................................................................................................30 3.3.3 PREPARATION...................................................................................................................30 3.3.4 RACK MOUNTING OF MOU ..............................................................................................30 3.3.5 RRU MOUNTING RACK .....................................................................................................31 3.3.6 RRU LIFTING LUG..............................................................................................................32 3.3.7 WALL MOUNTING OF MOUNTING RACK ........................................................................32 3.3.8 POLE MOUNTING OF MOUNTING RACK.........................................................................33 3.3.9 ATTACHING RRU ONTO MOUNTING RACK....................................................................34 3.3.10 DRIP-LOOP.........................................................................................................................34 3.4 EQUIPMENT CONNECTORS ............................................................................................35 3.4.1 MOU CONNECTORS..........................................................................................................35 3.4.2 RRU CONNECTORS ..........................................................................................................42 3.5 EQUIPMENT CONNECTION..............................................................................................42 3.5.1 GROUNDING CONNECTION.............................................................................................42 3.5.2 SERVICE VOLTAGE CONNECTION .................................................................................43 3.5.3 LI-ION BATTERY CONNECTION .......................................................................................44 3.5.4 RF CONNECTION TO MOU ...............................................................................................44 3.5.5 OPTICAL CONNECTION....................................................................................................44 3.5.6 CONNECTION TO PC ........................................................................................................44 3.5.7 BTS ALARM CONNECTION...............................................................................................45 3.5.8 EXTERNAL ALARM CONNECTION...................................................................................45 3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING MODEM...............46

4 COMMISSIONING...............................................................................................................48 4.1 PRE-COMMISSIONING TASKS .........................................................................................48 4.2 LED INDICATORS ..............................................................................................................48



4.2.1 MCU LED INDICATORS .....................................................................................................48 4.2.2 RRU LED INDICATORS......................................................................................................48 4.3 CONNECTION TO OMT .....................................................................................................49 4.4 OMT.....................................................................................................................................50 4.4.1 OMT SOFTWARE INSTALLATION ....................................................................................50 4.4.2 OMT SOFTWARE VERSION..............................................................................................51 4.5 DESCRIPTIONS OF PARAMETERS..................................................................................51 4.5.1 COMMON INFORMATION..................................................................................................51 4.5.2 RF INFORMATION..............................................................................................................51 4.5.3 ALARM INFORMATION......................................................................................................53 4.5.4 FOU ALARMS .....................................................................................................................53 4.5.5 PROPERTIES INFORMATION ...........................................................................................54 4.6 FAULT MANAGEMENT ......................................................................................................55 4.6.1 ALARM ACKNOWLEDGEMENT ........................................................................................55 4.7 NON-VOLATILE MEMORY.................................................................................................56 4.8 COMMISSIONING PROCEDURES....................................................................................57

5 MAINTENANCE ..................................................................................................................58 5.1 O-RING FITTING DETAILS.................................................................................................58

6 APPENDICES......................................................................................................................59 6.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE .................................59 6.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM.............................60



0.3 INDEX TO FIGURES AND TABLES

Figure 1: View of MOU............................................................................................................................... 14 Figure 2: Font, side and bottom views of the RRU enclosure ................................................................... 14 Figure 3: MOU system diagram................................................................................................................. 15 Figure 4: RRU system diagram.................................................................................................................. 15 Figure 5: Application of one MOU with one RRU through Single Channel FOU with internal WDM ........ 16 Figure 6: Application of one MOU with two RRUs through Dual Channel FOU with internal WDM ......... 16 Figure 7: Application of one MOU with one RRU through Single Channel FOU with external WDM ....... 17 Figure 8: Application of one MOU with two RRUs through Dual Channel FOU with external WDM ........ 17 Figure 9: Application of one MOU with four RRUs through two Dual Channel FOUs with internal WDM 18 Figure 10: Application of one MOU with one RRU through Single Channel FOU..................................... 18 Figure 11: Application of one MOU with two RRUs through Dual Channel FOU...................................... 19 Figure 12: Application of one MOU with one RRU through Single Channel FOU with WDM installed externally .................................................................................................................................................... 19 Figure 13: Application of one MOU with two RRUs through Dual Channel FOU with WDM installed externally .................................................................................................................................................... 20 Figure 14: Application of one MOU with four RRUs through two Dual Channel FOUs............................. 20 Figure 15: Application of one MOU with one RRU through Single Channel FOU with WDM installed externally .................................................................................................................................................... 21 Figure 16: Application of one MOU with two RRUs through two Dual Channel FOUs ............................. 21 Figure 17: Front view of one MOU with one RRU through single channel FOU with WDM (Duplex input)................................................................................................................................................................... 22 Figure 18: Front view of one MOU with two RRUs through single channel FOU without WDM ............... 22 Figure 19: Front view of one MOU with three RRUs through one dual channel FOU and one single channel FOU with WDM (Simplex Input) ................................................................................................... 23 Figure 20: Front view of one MOU with four RRUs through dual channel FOUs without WDM ............... 23 Figure 21: Equipment internal layout of RRU ............................................................................................ 24 Figure 22: Rack mounting of MOU ............................................................................................................ 30 Figure 23: Mounting rack dimension.......................................................................................................... 31 Figure 24: mounting rack secure details.................................................................................................... 31 Figure 25: RRU enclosure lifting lug attachment details............................................................................ 32 Figure 26: Wall mounting overview............................................................................................................ 32 Figure 27: Pole mounting overview............................................................................................................ 33 Figure 28: Attaching the RRU onto the mounting rack .............................................................................. 34 Figure 29: MOU Back Panel View ............................................................................................................. 40 Figure 30: Rear-shelf connectivitity of one MOU with one RRU through one single channel FOU .......... 40 Figure 31: Rear-shelf connectivity of one MOU with two RRU through one double channel FOU ........... 41 Figure 32: Rear-shelf connectivity of one MOU with three RRU through one double channel and one single channel FOUs.................................................................................................................................. 41 Figure 33: Rear-Shelf connectivity of one MOU with four RRU through two double channel FOUs ........ 41 Figure 34: RA-1900 RRU with AC110V PSU ............................................................................................ 42 Figure 35: Pin allocation for BTS_ALM port ............................................................................................ 45 Figure 36: Pins allocation for EXT_ALM Port.......................................................................................... 45 Figure 37: Wireless modem....................................................................................................................... 46 Figure 38: Diagram of wireline modem...................................................................................................... 47 Figure 39: Location of RRU LED indicators............................................................................................... 49 Figure 40: OMT v3.20 desktop .................................................................................................................. 50 Figure 41: O ring fitting details................................................................................................................. 58 Table 1: MOU shelf equipping rule ............................................................................................................ 23 Table 2: RA-1900 Regular KOP................................................................................................................. 25 Table 3: MOU KOP .................................................................................................................................... 25 Table 4: RRU KOP..................................................................................................................................... 26 Table 5: PSU SIU description .................................................................................................................... 35 Table 6: MCU SIU description ................................................................................................................... 36 Table 7: RFU SIU description .................................................................................................................... 37 Table 8: Single Channel FOU with WDM .................................................................................................. 38



Table 9: Single Channel FOU SIU description .......................................................................................... 38 Table 10: Dual Channel FOU with WDM SIU description ......................................................................... 39 Table 11: Dual Channel FOU SIU description ........................................................................................... 39 Table 12: MOU back panel connectors ..................................................................................................... 40 Table 13: RRU connectors......................................................................................................................... 42 Table 14: Pin definition of the BTS_ALM port............................................................................................ 45 Table 15: Pin definition of EXT_ALM Port ............................................................................................... 45 Table 16: Voltage applied to EXT_ Alarm1~4............................................................................................ 46 Table 17: Wireline modem connectors ...................................................................................................... 47 Table 18: Wireline status LEDs.................................................................................................................. 47 Table 19: MCU LED indicators .................................................................................................................. 48 Table 20: RRU LED indicators................................................................................................................... 48 Table 21: Common Info description........................................................................................................... 51 Table 22: RF Info description..................................................................................................................... 52 Table 23: Management - RF parameters................................................................................................... 52 Table 24: Alarm List for RA-1900............................................................................................................... 53 Table 25: FOU alarm list ............................................................................................................................ 53 Table 26: Properties information descriptions ........................................................................................... 54 Table 27: Alarms diagnosis........................................................................................................................ 56



0.4 HISTORY

Change No. ENU Details Of Change 1 1-0-0 RA-1900 user manual first created in Jan 2007.

2 1-1-0 Document updated for product upgrade in Mar 2008



0.5 ISSUE CONTROL

Date 02

Jan 07

27 Mar 08

Section All All All



0.6 REFERENCES

0.6.1 RA-1900 DS 3-0-0 Datasheet released on Mar 2007 0.6.2 RA-1900-1001YH Original user manual released on Feb 2008 0.6.3 OMT V3.20 QE 1-1-0 OMT V3.20 Software Product Manual released in Feb

2007.



0.7 GLOSSARY OF TERMS

ALC Automatic Level Control ATT Attenuation BTS Base Transceiver Station CSA Cross Sectional Area dB Decibel dBm Decibels relative to 1 milliwatt DL Downlink DPX Duplexer DT Donor Terminal E/O, O/E Electrical/Optical, Optical/Electrical FSK Frequency Shift Keying FOU Fiber Optical Unit GSM Global Standard for Mobile Communication Hz Hertz ID Identification LNA Low Noise Amplifier MCU Main Control Unit MHz Megahertz MOU Master Optical Unit MT Mobile Terminal MTBF Mean Time Between Failures NF Noise Figure OMC Operation & Maintenance Center OMT Operation & Maintenance Terminal OP Optical Fiber PA Power Amplifier PLL Phase Locked Loop PSU Power Supply Unit RF Radio Frequency RFU Radio Frequency Unit RRU Remote Radio Unit RX Receive SMA Sub-Miniature A Connector SIU Slide-In-Unit DIV Diversity TX Transmit UL Uplink VAC Volts Alternating Current VSWR Voltage Standing Wave Ratio WDM Wavelength Division Multiplexer



0.8 SAFETY NOTICES AND ADMONISHMENTS

This document contains safety notices in accordance with appropriate standards. In the interests of conformity with the territory standards for the country concerned, the equivalent territorial admonishments are also shown. Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained, authorized personnel. At all times, personnel must comply with any safety notices and instructions. Specific hazards are indicated by symbol labels on or near the affected parts of the equipment. The labels conform to international standards, are triangular in shape, and are coloured black on a yellow background. An informative text label may accompany the symbol label. Hazard labeling is supplemented by safety notices in the appropriate equipment manual. These notices contain additional information on the nature of the hazard and may also specify precautions. Warning: These draw the attention of personnel to hazards that may cause death or injury to the operator or others. Examples of use are cases of high voltage, laser emission, toxic substances, point of high temperature, etc. Alert: These draw the attention of personnel to hazards that may cause damage to the equipment. An example of use is the case of static electricity hazard. Caution notices may also be used in the handbook to draw attention to matters that do not constitute a risk of causing damage to the equipment but where there is a possibility of seriously impairing its performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main text do not incorporate labels and may be in shortened form.



0.9 SERVICING POLICY AND RETURN OF EQUIPMENT

The repair of individual units and modules of this equipment is not considered practicable without factory facilities. It is, therefore, the policy of Comba whereby faulty units or modules are returned to the local agent for repair. To enable an efficient, prompt after sales service to be provided for the diagnosis, repair and return of any faulty equipment, please comply with the following requirements. Items to be sent for repair should be packaged so as to provide both electrostatic and physical protection and a Repair Material Authorization (RMA) should be completed giving the required information. A sample RMA form is provided in Appendix. This request must be included with the item for repair. Items for repair should be sent to the nearest Comba office: COMBA TELECOM LTD. Hong Kong Office Address: 611 East Wing, No. 8 Science Park West Avenue, Hong Kong Science Park,

Tai Po, Hong Kong. Tel: +852 2636 6861 Fax: +852 2637 0966 Email: [email protected] Singapore Office Address: 865 Mountbatten Road, Katong SC #05-43, Singapore 437844 Tel: + 65 6345 4908 Fax: + 65 6345 1186 Email: [email protected] Thailand Office Address: 3rd Floor, T. Shinawatra Building, 94 Sukhumvit Soi 23, Sukhumvit Road, Klongtoeynua,

Wattana, Bangkok 10110 Tel: +66 2664 3440 Fax: +66 2664 3442 India Office Address: Suite No. 2, E-172, TSH House, Greater Kailash I, New Delhi 110 048, India Tel: + 91 11 5173 9997 / 8 Fax: + 91 11 5173 9996 Email: [email protected] Sweden Office Address: Gustavslundsvagen 147, S- 167 51 Bromma, Stockholm, Sweden Tel: +46 8 25 38 70 Fax: +46 8 25 38 71 Email: [email protected] Brzail Sales Office Avenida Engenheiro Luiz Carlos Berrini 1297, cj 122, sala 03 04571-090 So Paulo, Brazil Tel: +55 11 55050549 Fax: +55 11 55050549 ext 7 China Office Address: No.10, Shenzhou Road, Guangzhou Science City, Guangzhou, China Tel: + 86 20 2839 0000 Fax: + 86 20 2839 0136 Email: [email protected]



0.10 READERS COMMENTS

Whilst every endeavour is made to ensure the accuracy of this and all Comba documents, there is always the possibility that an inaccuracy or omission may occur. In order that any amendment or remedial action can be carried out promptly, it is necessary to fill out and return a photocopy of this customer reply sheet as soon as possible. Customer Information:

Name

Title

Company

Date

Address

Telephone Number

Customer Comments:

Equipment title RA-1900 QI

ENU 1-1-0

Page number

Paragraph number

Line number

Figure number

Details of inaccuracies

Other comments

Contact points: Technical Writing E-mail: [email protected]

FAX: +852-21166055

End of Section



1 GENERAL INFORMATION

The RA-1900 GSM1900 Optical Band Selective Repeater (hereinafter called RA-1900) can be used in a point-to-point or point-to-multipoint distributed antenna system to provide effective coverage enhancement. It uses fiber transmission and is suitable for applications where large signal coverage is required, such as citywide enhancement, highways, canyons, campuses, underground tunnels, airports, convention centres, etc. This system consists of Master Optical Unit (MOU) RA-1900-D and Remote Radio Unit (RRU) RA-1900-R. The MOU accommodates slide-in Fiber Optical Unit (FOU) modules that can support up to four RRUs. The low loss of optical fiber makes it suitable for long distance transmission. This system can support optical transmission of up to 10dB signal transmission loss. There is no isolation problem as in standard off-air repeaters, which means customer can select the service antenna flexibly according to the real situation, such as directional or omni-directional antenna. Remote configuration and surveillance is possible through Combas OMC remote control and monitoring system. Characteristics of RA-1900 are as follows:

10W total downlink output power, utilising ultra efficient with advanced linearization technology. With WDM unit, single fibre working is applicable. RF transmission over Fiber Distributed Antenna System suitable for large scale indoor & outdoor

coverage enhancement.

Modular design Master Optical Unit (MOU) allows flexible and scalabl e configuration. Master Optical Unit (MOU) supports up to 4 Remote Radio Units (RRU). Built-in alarm interface for remote system monitoring. Passive cooling (no fan required). IP65 Weatherproof RRU with built-in surge protection.



The figures below show the equipment enclosure layout of RA-1900 MOU and RRU.

360 482

177

Figure 1: View of MOU

615

210350

OP DownlinkOP Uplink

MT

EXT_ALM

RX_EXT

200-240V~50Hz/60HzRS-232

TX_EXT

RS-485

Figure 2: Font, side and bottom views of the RRU enclosure



2 EQUIPMENT DESCRIPTION

2.1 SYSTEM DIAGRAM

PSUBackup

Li - ion Battery

MCU

AC 110VAC 220VDC 48V

O

E

E0

TX Downlink Adapter Module

Pre -amplifier

PA

RX Uplink Adapter Module

E0

LNA

DPX

TX / RX

Figure 3: MOU system diagram

MCU

PSU

UL LNA

MTUL / DL

Pre- amplifier

Backup Li ion Battery

Backup Li ion Battery

DLPA

AC 220 /110V

Optical TX / RX Module

E / O

O / E F

S

K

from MOU

OP OUT

DPX

Figure 4: RRU system diagram

As shown in the above figures, the DL signals from the BTS are coupled directly and converted into optical signals after amplification in the MOU. Then, the optical signals are transmitted to the RRU via optical fiber. The Optical TX/RX Module of RRU converts the DL optical signals into RF signals. After amplification, the signals are transmitted at the MT port to the service antenna. On the UL, the signals transmitted by the mobile are converted into optical signals, and then via the UL optical fiber. The signals are transmitted to MOU, which then converts the optical signals back to RF signals. After amplification, the signals are transmitted back to the BTS.



Communication over optical fiber allows the RRU to be managed with the same fiber connection to the MOU. This is achieved by using the integrated Frequency Shift Keying (FSK) modem. 2.2 TYPICAL APPLICATIONS

2.2.1 SINGLE FIBER CONFIGURATION

Single fiber working is possible for RA-1900 equipment supplied with WDM Unit. The WDM allows optical signals at two different wavelengths to share the same fiber. The following illustrates two applications of single fiber configuration. 2.2.1.1 Typical Application of Single Fiber Configuration

The figures below are typical applications where WDM, internally or externally installed, is used to combine/divide two optical signals at the wavelengths of 1310nm and 1550nm on a single optical fiber.

Figure 5: Application of one MOU with one RRU through Single Channel FOU with internal WDM

Figure 6: Application of one MOU with two RRUs through Dual Channel FOU with internal WDM



TX/RX

1, 2

2=1550nmOP OUT

MT

ANT

2 =1550nmFiber IN

1=1310nmFiber Out

1=1310nmOP IN

TX/RX

Figure 7: Application of one MOU with one RRU through Single Channel FOU with external WDM

Figure 8: Application of one MOU with two RRUs through Dual Channel FOU with external WDM



2.2.1.2 Extension Application of Single Fiber Configuration

A fully equipped MOU can host up to four RRUs. This can be achieved by two Dual Channel FOUs with internal or external WDM. The following figure illustrates the configuration for MOU with internal WDM unit:

TX/RX

TX/RX

MT

ANT

1310nm/1550nm

OP UL_DL2 OP UL_DL

MT

ANT

1310nm/1550nm

OP UL_DL1 OP UL_DL

MT

ANT

1310nm/1550nm

OP UL_DL1 OP UL_DL

MT

ANT

1310nm/1550nm

OP UL_DL2 OP UL_DL

Figure 9: Application of one MOU with four RRUs through two Dual Channel FOUs with internal WDM

2.2.2 DUAL FIBER CONFIGURATION

For the RA-1900 equipment without internal WDM Unit, dual fiber configuration is required. The following illustrates two applications of dual fiber configuration. 2.2.1.1 Typical Application of Dual Fiber Configuration

Typically, one MOU can be connected with one or two RRU(s) using the Single Channel FOU or Dual Channel FOU, as shown in the two figures below:

Figure 10: Application of one MOU with one RRU through Single Channel FOU



Figure 11: Application of one MOU with two RRUs through Dual Channel FOU

Shown below is a typical dual fiber application showing the ability to interwork theRA-1900 with existing fiber (e.g. 1310nm occupied) by using externally installed WDM units.

Cou

pler

WD

MW

DM

WD

MW

DM

Figure 12: Application of one MOU with one RRU through Single Channel FOU with WDM installed

externally



Figure 13: Application of one MOU with two RRUs through Dual Channel FOU with WDM installed

externally 2.2.1.2 Extension Application of Dual Fiber Configuration

A fully equipped MOU can host up to four RRUs. This can be achieved by equipping two Dual Channel FOUs as shown in the figure below.

TX/RX MT

ANT1310nm

OP Downlink1

TX/RX

OP Downlink

1550nm

OP Uplink1 OP Uplink

1310nm

OP Downlink2 OP Downlink

1550nm


1310nm


1550nm


1310nm


1550nm


ANT

ANT

ANT

MT

MT

MT

Figure 14: Application of one MOU with four RRUs through two Dual Channel FOUs



For dual fiber configuration with externally installed WDM units, rerfer to the following figures:

Cou

pler

WD

MW

DM

WD

MW

DM

Figure 15: Application of one MOU with one RRU through Single Channel FOU with WDM installed externally

Figure 16: Application of one MOU with two RRUs through two Dual Channel FOUs



2.3 EQUIPMENT LAYOUT

The RA-1900 MOU (RA-1900-D) is constructed into a 19 4U shelf, with connectors located on the front and back panels. The RRU (RA-1900-R) is designed for all cables entries from the bottom of the enclosure. The MOU consists of a shelf that accommodates up to seven slide-in modules. Slots are numbered 1 to 7 from left to right. The following slide-in modules are accommodated with the MOU: y Fiber Optical Unit (FOU) y Radio Frequency Unit (RFU) y Main Control Unit (MCU) y Power Supply Unit (PSU) For illustration purposes, shown below are standard and extension applications through single channel FOUs & dual channel FOUs configurations with the following apllications: MOU with wireless modem AC220V PSU

TX/RX

Uplink_Ext

Downlink_Ext

POWER

PSURFU MCUFSKALARMPUN

BTS-ALM

RS-232OP UL-DL

FOU

50/60Hz220~240V

Modem

Figure 17: Front view of one MOU with one RRU through single channel FOU with WDM (Duplex input)

OP UplinkOP Downlink

POWER

PSURFU MCUFSKALARMPUN

BTS-ALM

RS-232

OP Downlink

FOU

50/60Hz220~240V

OP Uplink

Modem

Downlink_Ext

Uplink_Ext

TX/RX

Figure 18: Front view of one MOU with two RRUs through single channel FOU without WDM

(Duplex Input)



OP UL-DL

POWER

PSUMCUFSKALARMPUN

BTS-ALM

RS-232OP UL-DL

FOU

50/60Hz220~240V

FOU

OP UL-DL

Modem

RFU

DownlinkUplink

Downlink_ExtUplink_Ext

Figure 19: Front view of one MOU with three RRUs through one dual channel FOU and one single

channel FOU with WDM (Simplex Input)




OP Downlink OP Uplink

Modem

FOU

220~240V50/60Hz

FOU

RS-232

BTS-ALM

PUNALARMFSK

MCURFU PSU

POWER

Uplink_Ext Downlink_Ext

DownlinkUplink

Figure 20: Front view of one MOU with four RRUs through dual channel FOUs without WDM

(Simplex Input) The equipment layout of MOU shelf depends on the customers network requirement, and affects the FOU variant and quantity equipped in the MOU shelf. Shown below are the equipping rules of the MOU shelf.

Solution and SIU equipping

Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6

Slot 7

4x RRU Solution 2 2 3x RRU Solution 2 1 3x RRU Solution 1 2 2x RRU Solution 2 Blank2x RRU Solution Blank 2 1x RRU Solution 1 Blank1x RRU Solution Blank 1

Blank

Blank

RFU

MCU PSU

Table 1: MOU shelf equipping rule

1 denotes Single Channel FOU (with or without Integrated WDM capability) 2 denotes Dual Channel FOU (either with or without Integrated WDM capability). By design,

only slot 1 and 2 can accommodate Dual Channel FOU Blank denotes position for Blanking off plate this slot may be interchanged with Single

Channel FOU RFU by design is equipped in Slot 5, MCU by design is equipped in Slot 6, PSU by design is

equipped in slot 7



The internal layouts for the RRU are shown below:

RF OUTRF IN

POWER

MODEL:S/N NO.:

28V+

IN OK

BAT2+

GND

L

E

N

BAT2

28V-9V+9V-JK+JK-

BAT2-

OUT OK

Li-ion Battery

Door Open Switch

Optical TX/RX module

PA module

DPX

Pre-amplifier

Distribution Board

PSU

Surge protector

UL Filter

DL Filter

LNA

VSWR module

Figure 21: Equipment internal layout of RRU

2.4 EQUIPMENT CONSTITUTION

The RA-1900 consists of MOU and RRU that comprise of the modules described below: MOU Modules Radio Frequency Unit (RFU): RF connection with the FOU(s) is from the rear panel, whereas BTS

RF connection(s) are connected to the front. Power Supply Unit (PSU): Converts the input voltage into a stable DC to provide power for other

modules and to charge the internal Li-ion battery. The integrated Li-ion battery provides power to the Main Control Unit to send alarm signals in the event of power failure.

Main Control Unit (MCU): Controls and monitors the operation parameters of the MOU and provides

communication interface for local monitoring and remote monitoring.



Fiber Optical Unit (FOU): Interface between MOU and RRUs. Performs conversion between RF and optical signals. It consists of an FSK modem for communication between the MOU and RRU over optical fiber.

RRU Modules Main Control Unit (MCU): Controls and monitors the operation parameters of the RRU and provides

communication interface for local monitoring. Optical TX/RX Module: Performs conversion between optical and RF signals and the gain setting of

fiber link. Optical RX Module converts the received optical signals into RF signals and the Optical TX Module converts the received RF signals into optical signals to be transmitted back to the MOU.

Duplexer (DPX): TX/RX the uplink and downlink signals. Pre-amplifier Module: Pre-amplifies the RF signals from/to the Optical TX/RX Module. Power Supply Unit (PSU): Converts the input AC voltage into a stable DC to provide power for other

modules and to charge the internal Li-ion battery. Two switches exist on the PSU when viewing from the front of the PSU, Left switch controls power to the RRU, and the Right switch control the circuit between the Li-ion battery pack and the MCU.

Surge Protector: Provides protection to the PSU. Low Noise Amplifier (LNA): with ATT function, used to pre-amplify the signal in and Uplink to ensure

low noise. Li-ion Battery: Supplies power to MCU for up to two hours in the event of mains power failure. UL/DL filfter: The use of filter can select and purify the desired signals. Door Open Switch: Used to monitor the door status. If the door is open, a door open alarm will be

generated. VSWR Module: Used to test the VSWR of UL ouput and input to MT. A VSWR alarm will be

generated, if the tested VSWR is over the threshold. Distribution Board: The distribution board serves as a distributor for power and internal

communication within the equipment. It provides connectivity to function modules, MCU and RS232 port for local control.

2.5 KIT OF PARTS

For this system, the following are shipped:

Table 2: RA-1900 Regular KOP

Product Identifier Description Quantity250V/3.2A Delay Fuse Equipment replacement fuse 2 Power supply cable n/a 1 R-9122C/R-9122AC Commissioning Cable 1

Table 3: MOU KOP

Product Identifier Description QuantityRA-1900 QI 1-1-0 This equipment manual 1 OMT V3.20 OMT software on CD-Rom 1 n/a Testing Report 1



Product Identifier Description QuantityM10x110 Masonry Bolt 4 T3-000201-5114 Lifting Lug 1 T3-099901-5202 Clamp 2 00-100DJT5104 Optical Connector Cover 1 00-100DJT-5105 Optical Connector Screw Cap 1 00-100DJT-5106 Rubber Loop 1 n/a Enclosure Key for door-lock 2 M10xM110 Masonry bolts 4 M12x160 Carriage Bolt set 4 M6 x12 Hex Socket Bolt 2 GB/T41,M12 Nut 8 GB/T93 Spring Washer 2 5.5mm Allen Key 1

X14J5-DB9K Commissioning cable for local commissioning 1

250V/6.3A Delay Fuse Equipment replacement fuse 2 Table 4: RRU KOP

End of Section



3 INSTALLATION

3.1 WARNINGS AND ALERTS

Laser Laser light can cause damage to eyes. Laser light is not visible. Viewing it directly does not cause pain. The iris of the eye will not close when viewing a bright light. Consequently, serious damage to the retina of the eye is possible. NEVER LOOK INTO THE END OF A FIBER WHICH MAY HAVE A LASER COUPLED TO IT. Radio Frequency Energies There may be situations, particularly for workplace environments near high-powered RF sources, where recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases, restrictive measures or actions may be necessary to ensure the safe use of RF energy. High Voltage The equipment has been designed and constructed to prevent, as far as reasonably, practicable danger. Any work activity on or near equipment involving installation, operation or maintenance must be, as far as reasonably, free from danger. Where there is a risk of damage to electrical systems involving adverse weather, extreme temperatures, wet, corrosive or dirty conditions, flammable or explosive atmospheres, the system must be suitably installed to prevent danger. Protective Earthing Equipment provided for the purpose of protecting individuals from electrical risk must be suitable for the purpose and properly maintained and used. Handling Precautions This covers a range of activities including lifting, lowering, pushing, pulling, carrying, moving, holding or restraining an object, animal or person. It also covers activities that require the use of force or effort, such as pulling a lever, or operating power tools. Electrostatic Discharge (ESD) Observe standard precautions for handling ESD-sensitive devices. Assume that all solid-state electronic devices are ESD-sensitive. Ensure the use of a grounded wrist strap or equivalent while working with ESD-sensitive devices. Transport, store, and handle ESD-sensitive devices in static-safe environments.



3.2 SITE PLANNING CONSIDERATIONS

Site Considerations

The MOU can be located indoors to facilitate coupling of BTS signals and power supply connections. The recommended input range of BTS signal is -10~0 dBm. Hence, an appropriate coupler must be used according to input power of the repeater. The RRU is designed to be waterproof, rainproof, and with snow protection. Temporary protection should be taken when the equipment enclosure is opened for installation or maintenance in an outdoor environment. The equipment must not be opened for installation or maintenance in bad weather (e.g. gale, storm rainfall, extreme temperatures and high humidity) The site considerations for RRUs are listed below: The distance between the service antenna of RRU and coverage area should satisfy line of sight

requirements for maximum coverage area. The maximum fiber length is 20km, with a maximum optical path loss of 10B. For outdoor coverage applications, UL diversity option is recommended. The system delay of the optical system must be taken into consideration when there are neighboring

BTS sites overlapping in coverage. Installation Location

Mounting surface shall be capable of supporting the weight of the equipment. In order to avoid electromagnetic interference, a proper mounting location must be selected to minimize interference from electromagnetic sources such as large electrical equipment. Environmental

Humidity has an adverse effect on the reliability of the equipment. It is recommended to install the equipment in locations having stable temperature and unrestricted air-flow. The installation location for the product should be well ventilated. The equipment has been designed to operate at the temperature range and humidity level as stated in the product specifications in the datasheet. Direct sun light exposure to the equipment should be avoided. Provide additional shelter if necessary. Powering

The power supply unit (PSU) provides power to all modules within the equipment. Depending on the product variant, it is recommended that the PSU operates on a dedicated circuit breaker or fused circuit. Grounding Requirement

Verify that the equipment has been well grounded. This includes antennas and all cables connected to the system. Ensure lightning protection for the antennas is properly grounded. Cable Routing

Depending on equipment configuration, a variety of types of cables are required. Where applicable, ensure cables are properly routed and secured so that they are not damaged. Manual Handling

During transportation and installation, take necessary handling precautions to avoid potential physical injury to the installation personnel and the equipment.



3.2.1 REPEATER INSTALLATION CHECKLIST

z Working space available for installation and maintenance for each mounting arrangement. Ensure unrestricted airflow.

z Ensure earthing point is within reach of the ground wire. z Ensure a power source is within reach of the power cord and the power source has sufficient

capacity. z Where appropriate, ensure unused RF connectors are terminated. z Where appropriate, ensure unused optical filber connectors are protected. z Do not locate the equipment near large transformers or motors that may cause electromagnetic

interference. z Reduce signal loss in feeder cable by minimizing the length and number of RF connections. z Ensure the equipment will be operated within the stated environment (refer to datasheet). z Where needed, couple BTS RF signal with a coupler to prevent damaging the equipment. z Where appropriate, confirm available of suitably terminated grade of RF and optical fiber. (optical

fiber 20km from MOU to RRU) z Observe handling of all cables to prevent damage.



3.3 INSTALLATION PROCEDURES

3.3.1 GOODS INWARDS INSPECTION

1. Verify the number of packages received against the packing list. 2. Check all packages for external damage; report any external damage to the shipping courier. If there

is damage, a shipping agent should be present before unpacking and inspecting the contents because damage caused during transit is the responsibility of the agent.

3. Open and check each package against the packing list. If any items are missing, please contact Comba.

4. Do not remove items from antistatic packing until ready for installation. If damage is discovered at the time of installation, contact the shipping agent.

3.3.2 TOOLS

See Appendix A for a full list of the recommended tools required for installation and maintenance. 3.3.3 PREPARATION

Optical Fiber: Optical fibers require proper handling. Do not stretch, puncture, or crush the fiber cable with staples,

heavy equipment, doors, etc. Always maintain the minimum bending radius specified by the cable manufacturer. The minimum

bend radius is usually 10 times the cable's outer diameter. In the case of a single optical fiber that is not enclosed by the jacket, the minimum bending radius is 3cm.

3.3.4 RACK MOUNTING OF MOU

If a 2-post open-rack is to be used for installation of the MOU, the mid-mounting brackets are to be used. For rack or cabinet mounting, the mid-mounting brackets are to be removed from the 4U shelf. Cage nut and screws are not supplied. Unless otherwise recommended by rack manufacturer, M5 cage nut / bolt are to be used.

Figure 22: Rack mounting of MOU



3.3.5 RRU MOUNTING RACK

The following figure shows the dimension of the RRU mounting rack, which is used for mounting the RRU to either a wall or on a pole. There are four holes in total catering for both mounting options:

Wall mounting with the masonry bolts supplied, which make use of the round holes. Pole mounting with the clamp kit supplied, which make use of the square holes.

240

120200

4-13*13

4- 15

Figure 23: Mounting rack dimension

The mounting rack is pre-installed to the RRU enclosure prior to shipment. Before commencing with wall or pole mounting, user needs to separate the mounting rack from the RU enclosure. Refer to the figure below, use ring spanner to unscrew M8x20mm hex socket bolts at 1, 2, 3, 4, 5, and 6 to separate the mounting rack from the equipment.

6

45

12

3

M8x20 Hex Bolt

Figure 24: mounting rack secure details



3.3.6 RRU LIFTING LUG

This is provided to facilite lifting and positioning of the RRU equipment during installation. The lifting lug is to be attached to the rear of the RRU enclosure as shown below.

Enclosure

Lifting Lug

Hex Bolt M6X12

Spring Washer M6

Figure 25: RRU enclosure lifting lug attachment details

3.3.7 WALL MOUNTING OF MOUNTING RACK

z Drill holes on the wall by using the position of the four round holes on the mounting rack as a guide. z Insert the masonry bolts M10x110 through the round holes and tighten them to take the weight of

the entire RRU.

Mounting Rack

Masonry Bolt M10x110

Figure 26: Wall mounting overview



3.3.8 POLE MOUNTING OF MOUNTING RACK

The RRU can be mounted on poles of about 60~75mm in diameter. Secure the mounting rack onto the pole using M12x160 carriage bolts and clamps through the

square holes.

Clamp

M12 Nut

Mounting Rack

M12x160Carriage Bolt

Pole

Figure 27: Pole mounting overview



3.3.9 ATTACHING RRU ONTO MOUNTING RACK

z Located on the rear of the RRU enclosure is the array of protruding vertical cooling fins. z The two outer fins are designed for attaching the enclosure to the mounting rack. Each of these fins

has two steel shims inserted one towards the top and the other towards the lower end of the each outer fin.

z Ensure each M8 bolts has a spring loaded washer and a flat washer. z Partially thread the M8x20 hex bolts (1, 3, 4, and 6) onto each steel shim. (Refer to the figure

below). z Hang the equipment to the top of the mounting rack so that the top hex bolts (1 and 4) will take the

weight of the equipment. z Push the lower end of the equipment to engage the two lower bolts (3 and 6) onto the mounting

rack. z Tighten the four partially threaded hex bolts to secure the equipment onto the mounting rack. z Insert two more hex bolts (2 and 5) through the mounting bracket and tighten them to the steel shim. z The above steps will mount the equipment firmly. Refer to the photograph in the Mounting Bracket

section to verify the correct arrangement of spring loaded and flat washers.

6

45

12

3

Hex Bolt M820

Mounting Rack

Enclosure

Masonry Bolt M10110

Figure 28: Attaching the RRU onto the mounting rack

3.3.10 DRIP-LOOP

Comba recommends that every horizontal cable entry to the equipment forms a 'U' before its entry to the equipment. Any accumulated water on the cable will drip down at the bottom of the loop and will not accumulate at the equipment connectors.



3.4 EQUIPMENT CONNECTORS

The MOU is connected via the connectors located on the front and back panel. The RRU is designed for all cables entries from the bottom of the enclosure. 3.4.1 MOU CONNECTORS

3.4.1.1 MOU Front Panel Connectors

PSU The front layouts of the AC PSU are shown.

POWER Power switch

AC110V PSU PSU

POWER

85~135V45/65Hz

85~135V 45/65Hz

IEC socket for standard power cord. 85~135V 45/65Hz indicates the input power is rated at AC110V with the voltage range from 85V to 135V.

POWER Power switch

AC220V PSU

PSU

POWER

176~264V45/55Hz

176~264V 45/55Hz

IEC socket for standard power cord. 176~264V 45/55Hz indicates the input power is rated at AC220V with the voltage range from 176V to 264V.

POWER Power switch

DC-48V PSU

P O W E R

P S U

-7 6 ~ -3 8 V G N D

-76~-38V

-76~-38V indicates the input power is rated at DC with the voltage range from -76V to -38V. Teminal posts on the front terminate the DC power lead.

Table 5: PSU SIU description



MCU with wireline modem

The MOU is controlled and monitored with this unit. The operation status and local connection to PC is available on this module. The wireline modem is integrated within this unit.

FSK

Green LED to indicate the communication status (FSK Modem) between MOU and RRU. This LED flashes every two seconds to indicate normal communication status. OFF indicates an alarm is generated.

ALARM RED LED to indicate alarm condition of MOU. OFF for normal operation, and ON indicates that an alarm is generated.

RUN

Green LED to indicate system operation status. This LED flashes every one second to indicate system self-check completed and system commissioning can proceed.

PSTN RJ-11 connector for wireline connection.

RS-232 DB-9 connector for OMT PC connection to the MOU using the supplied cable.

RS-232

BTS-ALM

PSTN

ALARMFSK

MCU

RUN

BTS-ALM DB-9 connector for BTS alarm notification. Refer to Page 45 for details.

The MOU is controlled and monitored with this unit. The operation status and local connection to PC is available on this module. The wireline modem is integrated within this unit. (standard application)

FSK

Green LED to indicate the communication status (FSK Modem) between MOU and RRU. This LED flashes every two seconds to indicate normal communication status. OFF indicates an alarm is generated.

ALARM RED LED to indicate alarm condition of MOU. OFF for normal operation, and ON indicates that an alarm is generated.

RUN

Green LED to indicate system operation status. This LED flashes every one second to indicate system self-check completed and system commissioning can proceed.

RS-232 DB-9 connector for OMT PC connection to the MOU using the supplied cable.

BTS-ALM DB-9 connector for BTS alarm notification.

MCU with wireless modem

MCUFSKALARMPUN

BTS-ALM

RS-232

Modem

Modem SMA connector for wireless modem RF signal to the MODEM port of the Main Unit.

Table 6: MCU SIU description



RFU Perform pre-amplification and signal conditioning for uplink and downlink RF signals with simplex input.

Uplink_Ext SMA-F connector (reserved), uplink input port of extended cell. It is the RF Rx connection to BTS.

Downlink_Ext SMA-F connector (reserved), downlink output port of extended cell. It is the RF TX connection to BTS.

Uplink SMA-F connector for uplink output port. It is the RF Tx connection to BTS.

RFU with simplex Input

Uplink_Ext Downlink_Ext

Uplink Downlink

RFU

Downlink SMA-F connector for downlink input port. It is the RF RX connection to BTS.

Perform pre-amplification and signal conditioning for uplink and downlink RF signals with duplex input. (standard application)

Downlink_Ext SMA-F connector (reserved), downlink output port of extended cell. It is the RF TX connection to BTS.

Uplink_Ext SMA-F connector (reserved), uplink input port of extended cell. It is the RF RX connection to BTS.

RFU with duplex input

TX/RX

RFU

Downlink_Ext

Uplink_Ext

TX/RX SMA-F connector for downlink and uplink port. It is the RF TX/RX connection to BTS.

Table 7: RFU SIU description



The following are the introduction on the connectors of each FOU type.

Single Channel FOU with WDM

WDM unit integrated to implement the connection between MOU and RRU through single fiber. Each Single Channel FOU with WDM can serve one RRU. (standard application)

FOU

OP UL-DL

OP UL-DL FC/APC connector for optical input/output port. It is connected to the OP UL-DL port of RRU.

Table 8: Single Channel FOU with WDM

Single Channel FOU without WDM

This is applicable when no integrated WDM is required. It implements the connection between MOU and RRU through dual fiber. Each Single Channel FOU can serve one RRU.

OP Downlink FC/APC connector for downlink optical output port. It is connected to the OP Downlink port of RRU.


FOU

OP Uplink FC/APC connector for uplink optical input port. It is connected to the OP Uplink port of RRU.

Table 9: Single Channel FOU SIU description



Dual Channel FOU with WDM

Two WDM units integrated to implements the connection between MOU and RRU through single fiber. Each Dual Channel FOU with WDM can serve two RRUs. (standard application)

OP UL-DL FC/APC connector for optical input/output port 1. It is connected to the OP UL-DL port of RRU 1.

OP UL-DL OP UL-DL

FOU

OP UL-DL FC/APC connector for optical input/output port 2. It is connected to the OP UL-DL port of RRU 2.

Table 10: Dual Channel FOU with WDM SIU description

Dual Channel FOU without WDM

This is applicable when no integrated WDM is required. It implements the connection between MOU and RRU through dual fiber. Each Dual Channel FOU can serve two RRUs.

OP Downlink FC/APC connector for downlink optical output port 1. It is connected to the OP Downlink port of RRU 1.

OP Uplink FC/APC connector for uplink optical input port 1. It is connected to the OP Uplink port of RRU 1.

OP Downlink FC/APC connector for downlink optical output port 2. It is connected to the OP Downlink port of RRU 2.

FOU



OP Uplink

FC/APC connector for uplink optical input port 2. It is connected to the OP Uplink port of RRU 2.

Table 11: Dual Channel FOU SIU description



3.4.1.2 MOU Back Panel Connectors

Information in this section is provided for trained personnels, it is expected the MOU shelf is pre-configured and tested prior to shipment, and access to the rear of the MOU shelf is not normally required. The rear of the MOU shelf is protected by a screwed down back-cover, with the back-cover removed, the backplane and RF connections are exposed. Operating the equipment without the MOU back-cover fitted is not recommended.

A1

A2

A3

A4

A5

A6

A7

A8 B4

B3

B2

B1 B5

B6

B7

B8 C2

C1 C3

C4 D2

D1 D1

D2 E2

E1 E3

E4

Figure 29: MOU Back Panel View

Connector Description A1~A4 RFU downlink output ports 1~4 ( A1 and A4 are

disable and researved for extension units) A5~A8 RFU uplink input ports 1~4 B1~B4 Reserved B5~B8 Reserved C1~C4 Reserved D1~D2 FOU RF input ports 1~2 D3~D4 FOU RF output ports 3-4 E1~E2 FOU RF inout ports 1~2 E3~E4 FOU RF output ports 3~4

Table 12: MOU back panel connectors The fiber connection fgures below present the MOU equipped with FOUs (Red for Downlink connection, Blue for uplink connection):

Figure 30: Rear-shelf connectivitity of one MOU with one RRU through one single channel FOU



Figure 31: Rear-shelf connectivity of one MOU with two RRU through one double channel FOU

Figure 32: Rear-shelf connectivity of one MOU with three RRU through one double channel and one

single channel FOUs

Figure 33: Rear-Shelf connectivity of one MOU with four RRU through two double channel FOUs



3.4.2 RRU CONNECTORS

Connectors on the RRU are identified below:

RS-485

TX_EXT

RS-232200-240V~50Hz/60Hz

RX_EXT

EXT_ALM

MT

OP Uplink OP Downlink

Figure 34: RA-1900 RRU with AC110V PSU

Connector Description

OP Uplink OP Downlink

Cable gland of SC/APC connector for UL and DL optical signal connection. The OP Uplink and OP Downlink ports will be identified as a single port OP UL-DL for signal connection when WDM unit is configured into the system.

RX_EXT RF connector (reserved), for connection to the downlink input port TX_EXT of extension unit (optionally supplied). A load will be applied when unused.

TX_EXT RF connector (reserved), for connection to the uplink output port RX_EXT of extension unit (optionally supplied). A load will be applied when unused.

MT N-F connector for connection to service antenna. RS-485 Communication port is researved for connection to extension unit with

the optionally supplied communication cable. RS-232 Communication port for local commissioning of the RRU with the

supplied commissioning cable. EXT_ALM 7-Pin CPC connector for connection to external facilities. 200-240V 50Hz/60Hz A pre-installed power cord provided for connection to AC supply (e.g.

110V, 220V).

Table 13: RRU connectors 3.5 EQUIPMENT CONNECTION

3.5.1 GROUNDING CONNECTION

Ground Connection



To ensure safe operation of the product, a ground (earth) connection is required. For single phase AC power source, the product must be grounded by connecting the earth wire of the power cord to the ground terminal of the AC supply. For operating this product with DC power system (such as rectifiers), the product should not be connected to power systems that switch open the return lead because the return lead could function as the ground (earth) connection for the equipment. Protective Ground Connection The enclosure must be grounded securely by connecting a copper wire (CSA 16mm2) to the grounding terminal on the equipment/rack, and the other end to a protective ground (i.e., building earth point). An internationally acceptable colour code of the ground connection wire is green/yellow. Such a ground connection implements the Protective Ground Connection, and must be connected to the equipment at the designated ground point, and preferable using crimp connectors. In general, do not connect the supply before establishing an adequate ground (earth) connection.

1. MOU Grounding Connection Connect the grounding terminal located on the back panel of MOU to a protective ground (i.e., building earth point).

2. RRU Grounding Connection The equipment must be grounded securely. Connect a copper wire to the grounding terminal located on the colling fin, and connect the other end to a protective ground (i.e., building earth point). An internationally acceptable colouring code of the ground connection wire is green/yellow. 3.5.2 SERVICE VOLTAGE CONNECTION

MOU Service Voltage Connection MOU accepts AC or DC power depending on the type of PSU installed. For AC PSU (220V or 110V) The power connector is on the front of the PSU module. Connect the PSU to AC mains power outlet using a standard IEC power cord. For DC PSU (-48V) When the equipment is required to be DC power supply, the power connector located on the front panel of PSU unit will be connected to the DC power source. The connectors are colour coded for rectifying equipment in the BTS installation using power cable with CSA of 2mm2.

y Unterminated colour coded wires are supplied, during installation, these are to be terminated to the appropriate length, and crimp connectors applied before attaching securely onto the appropriate connections of the PSU SIU.

y The DC power cable for -48V is colour coded, typically as BLUE for -48V or Battery and BLACK for 0V or Return connections.

RRU Service Voltage Connection RRU is connected to 220VAC or 110VAC, 50Hz power supply. The recommended AC connection is rated at AC220V, 10A and has three connections to include earth. For cartain territories, the RRU is equipped for use with 110VAC power supply. The recommended AC connection is rated at AC110V, 20A and has three connections to include earth. Depending on the PSU type installed, this connection is labeled differently, adjacent to the power cord.



3.5.3 LI-ION BATTERY CONNECTION

Li-ion battery is provided with this system to ensure power is supplied to the system monitoring unit and MCU and to ensure the alarm message could be sent to OMC effectively in case of mains power failure. Caution: Be careful of the risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.

MOU Li-ion Battery Connection The Li-ion battery is located within the PSU SIU and is disconnected prior to shipment. Before equipment power up, user needs to withdraw the PSU SIU from the MOU shelf, locate and connect the in-line connector of the battery pack and then reinsert the PSU SIU.

RRU Li-ion Battery Connection With the equipment lying flat, remove the bolts with an Allen Key, unlock and open the enclosure door. Locate the battery pack, the in-line connector of the battery pack is disconnected from the PSU during shipment. Connect the in-line connector, turn on the battery switch located on the PSU, close the enclosure door, insert and tighten bolts to complete this procedure. 3.5.4 RF CONNECTION TO MOU

Connect MOU to BTS z Connect the Downlink and Uplink ports located on RFU of the MOU shelf to the BTS coupler

(TX/RX) via coaxial cable. z Connect the TX/RX port located on RFU of MOU shelf to BTS coupler (TX/RX) via coaxial cable. Two terminating loads are supplied with each RFU SIU depending on network requirements, these are inserted onto the Uplink_Ext and Downlink_Ext. (Both Uplink_Ext and Downlink_Ext ports are disable at this stage and reserved for extension unit connection to BTS.) Connect RRU to Antenna Connect the MT port of RRU to the TX/RX service antenna via coaxial cable. 3.5.5 OPTICAL CONNECTION

The MOU is connected to RRU via optical fiber (length < 20km). Connect the OP Uplink and OP Downlink ports of FOU and RRU using separated Tx/Rx optical fibers when no WDM is configured. For single fiber working, connection is via the internal mounted WDM unit; connect the OP UL_DL port of FOU and RRU using a single optical fiber. On the RRU, the fiber entry is protected by a shroud; ensure this is attached after fibres are secured. 3.5.6 CONNECTION TO PC

Connect MOU to PC Connect the RS-232 port located on the MCU SIU module to the serial port of PC with the RS-232 cable supplied to achieve local monitoring.



Connect RRU to PC Connect the RS-232 port located on the bottom of the RRU to the serial port of PC with the RS-232 cable supplied to achieve local monitoring. 3.5.7 BTS ALARM CONNECTION

The equipment alarms can be signaled to the BTS via voltage-free relay contacts. The voltage-free relay connections are connected to the DB-9 port BTS_ALAM located on the MCU of MOU. The following figure and table shows the pin allocation and definition

1

2

4

3

5

6

7

9

8

BTS_OPEN

BTS_CLOSE

BTS_ COM

Figure 35: Pin allocation for BTS_ALM port

Pin Number Definition Description

1 BTS_OPEN Connects to the normally opened terminal of the voltage free relay.

2 BTS_CLOSE Connects to the normally closed terminal of the voltage free relay. 3 BTS_COM Connects to the common terminal of the voltage free relay.

4 ~ 7 NC Reserved.

Table 14: Pin definition of the BTS_ALM port Depending on OMT/OMC conguguration, alarm to BTS can be signaled from the RA-1900 by either: a) pin1 and pin3 closed or b) pin2 and pin3 opened. 3.5.8 EXTERNAL ALARM CONNECTION

Four external alarms INPUT to RRU are realized on the EXT_ALM port, this is a 7-pin CPC connector. The following figure and table shows the pin allocation and definition. Pin numbering are shown looking-into the connector on the enclosure.

763 5

4

1 2

Figure 36: Pins allocation for EXT_ALM Port

Pin number 1 2 3 4 5 6 7

Alarm definition

EXT. Alarm 1

EXT. Alarm 2

EXT. Alarm 3 GND

EXT. Alarm 4 Reserved Reserved

Table 15: Pin definition of EXT_ALM Port



These signals are defined as TTL/CMOS level, for RRU, the following voltage are valid as EXT_ALM signals:

Voltage as applied to EXT Alarm pin Alarm condition 0V to 1.5V Alarm recognized 3.5V to 5V No Alarm recognized

Table 16: Voltage applied to EXT_ Alarm1~4 3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING

MODEM

Wireless Modem For the equipment variant equipped with wireless modem, the modem provides the option of remote connection of the equipment to the OMT. The wireless (GSM) modem implements the link for data and SMS. Note: When CDMA modem is used, only SMS function is supported to retrieve alarm information and to provide remote control. The power and data cables have been factory-connected to the wireless modem. User needs to insert the SIM / UIM card to the GSM / CDMA modem. To insert or replace the SIM / UIM card, locate and press down the recessed button (yellow) to eject the SIM / UIM card carrier (refer to the following figure). Insert the SIM / UIM card and push back the carrier until it is latched in place.

UIM card

UIM card carrier

Yellow button

Indicator LED

Modem RF output(SMA connector)

RS232 port

Power portUIM card

UIM card carrier

Yellow button

Indicator LED

Modem RF output(SMA connector)

RS232 port

Power port

Figure 37: Wireless modem

The LED indicator on the wireless modem displays the state of the modem: z LED OFF: equipment power off z LED ON: equipment power on, no SIM / UIM card or no connection to antenna z LED flash slowly: equipment power on, in SMS mode z LED flash quickly: equipment power on, in data link mode

Note: Data link mode is dependent on service availability from service provider. If it is required, the operators SIM card must be data-enabled (Circuit Switch Data) and without PIN code. Wireline Modem For the equipment variant equipped with wireline modem, it is the wireline modem in the MOU that implements the link for data and alarm code. The following figure shows the connection for wireline modem.



Figure 38: Diagram of wireline modem

RS232 and VDC Input ports are pre-wired to the equipment. The following table provides the definitions of the main ports on the modem.

To Line 1 Connects the modem to the Public Switched Telephone Network (PSTN).

To Telephone Connects to a telephone directly (optional). RS232 Port It is a DB9 port, connecting to the DB9 port on the

distribution board. VDC Input Connects to 10 ~ 30 VDC.

Table 17: Wireline modem connectors

On the modem, there are five status LEDs coloured in red. Shown below are the definitions of these LEDs.

CD (Carrier detect) The modem has detected a carrier on the phone line (a remote modem has been detected).

TR (Data Terminal Ready) The PC (or SIXNET Station) has established a connection to the modem and is ready.

RD (Receive Data) Flashes as data is received from the phone line. TD (Transmit Data) Flashes as data is sent out the phone line. Power ON when power is present.

Table 18: Wireline status LEDs A standard telephone cable can be used for connection with the To Line socket.

End of Section

1 Comba does NOT provide the RJ-11 cable. The connection of the wireline modem to the PSTN network is outside the scope of this document.



4 COMMISSIONING

4.1 PRE-COMMISSIONING TASKS

After equipment installation, perform the following steps before equipment powering and commissioning, check that the expected voltage, current, and power levels do not violate any ratings. Double check all connections including ground before applying power. Do not manipulate circuits or make changes when power is applied: Visually inspect the power connection within the equipment. Ensure that the power cable is correctly

and securely connected, including grounding wire, RF cable and optical cable. Check grounding connection and verify that the ground resistance is less than 5. Connect the equipment to the PC installed with OMT software. With the MOU installed, all SIU in place and cablings connected, apply power to the MOU by

switching on the PSU switch on the PSU SIU. With the MOU switched on, RRU installed and all cablings connected, apply power to the RRU by

switching on the PSU switch on the integrated PSU. Monitor the initialization of MOU and RRU wait until equipment initialization has completed. The online commissioning can be commenced with following the commissioning steps. 4.2 LED INDICATORS

4.2.1 MCU LED INDICATORS

Diagnostic LEDs are located on the MCU SIU, with each indicating the status of a particular function: Identifier Colour Indication

RUN Green Operation indicator Power is supplied to the MOU. Flashes once every second to indicate normal system operation. ALM Red Alarm indicator. ON = alarm; OFF = no alarm

FSK Green Diagnostic LED for FSK communication and MODEM operation. Flashes once every two seconds to indication normal communication between MOU and RRU.

Table 19: MCU LED indicators

The LEDs RUN, ALM, FSK will flash simultaneously three times during system self-checking after equipment power-up. Then, RUN flashes every second to indicate system commissioning can proceed. 4.2.2 RRU LED INDICATORS

Three diagnostic indicators are located on the MCU within the RRU, with each indicating the status of a particular function. Identifier Colour Indication H1 Green Operation indicator Power is supplied to the RRU. Flashes once every

second to indicate normal system operation. H2 Red Alarm indicator. ON = alarm; OFF = no alarm H3 Red Designed for integrated wireless modem status indicator. It is not

applicable for the RRU since it has no modem installed internally. It keeps ON during equipment operation.

Table 20: RRU LED indicators



MCU Initialization All three diagnostic LEDs will flash simultaneously for three times when power is supplied to the equipment. Then H1 will keep flashing at the rate of 1 flash/second. H2 will be ON when any alarm occurs.

Connect to Distribution Board

Push-button switch

PSU

Wireless Modem

Distribution Board

MCU

H1 H2 H3

Figure 39: Location of RRU LED indicators

On the MCU, there is a push-button switch (usually yellow) used to reset the equipment manually when equipment initialization fails, or abnormal operation occurs, or when the equipment is re-connected to the OMT after powered off due to some reason. 4.3 CONNECTION TO OMT

Sometimes known as the F-interface, this is implemented in hardware as RS-232 for ASCII communication protocol between OMT and the equipment. Physical/Local Connection RS-232 cable is supplied with equipment. It connects the serial port of the PC to the RS-232 port on either MOU or RRU. For MOU, it is through the RS-232 port on the Main Control Unit, while for RRU, it is through the RS-232 port located on the bottom of the equipment. Remote Connection Remote connection of the MOU to the OMT is achieved by either wireline or wireless modem via data and/or SMS mode. SMS mode is available only for wireless modem. For managing the RRU, a remote connection is achieved by communication over the optical fiber. The FSK modem within the MOU and RRU modulates the data between the equipments. Using a PC communicating with the MOU, RF parameter and alarm information of the RRU(s) can be viewed and managed.



4.4 OMT

The equipment can be monitored and controlled by one of two methods: z OMT software running on a local PC with serial connection to the equipment. z OMC (optional) software with remote connection to the equipment over wireless GSM / CDMA

network. Note: Items in the OMT window is displayed in grey cannot be set or monitored. The OMT software runs on Windows operating system, and is designed for monitoring and maintaining of Comba equipments. The OMT software can accomplish the following functions: z Configures and adjusts the equipments operating parameters. z Displays the equipments internal operation status. z Displays the input field level and output power. z Downloads MCU firmware for upgrading purposes.

Figure 40: OMT v3.20 desktop

In the window above, the left interface of the OMT screen is the equipment information tree area. Click any tree symbol to collapse the relevant information, and click on the relevant information tree node to view the details in the right interface of the OMT screen. The OMT is documented in full and separately in OMT v3.20 Product Manual. 4.4.1 OMT SOFTWARE INSTALLATION

Refer to Reference 0.6.3 for installing OMT software. After installing OMT software on the PC, connection to the equipment can be done locally or remotely.



4.4.2 OMT SOFTWARE VERSION

OMT software is designed to be backward compatible. To view the OMT software version, select [Help] [About] in the OMT software main window. The current OMT version for RA-1900 is OMTv3.20. 4.5 DESCRIPTIONS OF PARAMETERS

After successful connection of the OMT to the equipment, equipment parameters can be read and/or set. Parameters include: Common Information, RF Information, Alarm Information and Properties Information. 4.5.1 COMMON INFORMATION

[Common Info.] includes System Info and Auto-Read. Different parameter has different interface, which can be displayed by clicking the nodes in [Equipment Information Tree]. Click the [System Information] node in the [Equipment Information Tree] area to view the system information. Click the [Auto Read] node, a window will be shown on its right, in which user can define which parameters to be read automatically and the time interval for each read operation. Refer to OMT v3.20 Software Product Manual for detailed information.

Node Name Description

[Sytem Info] Allows selection of information between master or remote equipment

[Auto-Read] System will automatically query the selected parameters based on the setting time interval

Table 21: Common Info description Switch between MOU and RRU With the MOU connected, in the [System Info.] window, select the Site (e.g., Site 01) where the RRU is located, and select the [Switch] button, it will successfully switch from the MOU to the selected RRU, which is indicated by message Online Ok. At this stage, user can read and set RRU equipment parameters. Use the same way to switch from RRU to MOU. 4.5.2 RF INFORMATION

As in Common Info., all the RF information in general will be displayed in the right part of the main screen when clicking on each [RF Info.] node in [Equipment Information Tree] area. User can read and/or set the parameter values in each interface. For example, select [Alarm Threshold], user can set threshold for the relevant parameters. Refer to OMT v3.20 Software Product Manual for RF parameter configuration information. There are six separate interfaces in [RF Info.] group.

Node Name Description

[Switch] Switch on/off is to enable/disable DL&UL.

[Pre-ATT] The purpose of adjusting the Pre-ATT is to control the system gain according to real site situation to ensure call quality.

[Alarm Threshold] For the MOU, the Alarm Threshold includes DL Input Power Overload Threshold.



For the RRU, the Alarm Threshold includes DL Output Power Low Threshold Over Temperature Threshold, and DL VSWR Threshold.

Users can set alarm threshold according to the specific situation. If the measured value is lower than the threshold lower limit or higher than the threshold upper limit, the appropriate alarm will be generated.

[Power] Read only parameters. A measured value of power can be read directly when equipment signals are connected. When the measured value is lower than the minimum value, it will be shown as --, while being higher than the maximum value, it will be shown as ++.

[Gain] Includes Uplink Calculated Gain and Downlink Caculated Gain.

[Temperature] Only available for RRU. This value should be within the [Over Temperature Threshold], otherwise, an Over Temperature alarm will be generated.

Table 22: RF Info description Parameters Power, Gain and Temperature are for read-only. The following table provides descriptions of the equipment RF parameters.

Identifier Application Setting Initial Setting

Switch Control RF output power for commissioning and diagnosis

ON' = DC power supply enabled, and the frequency selection and amplifier module is enabled, parameters can be set and read.

OFF= no DC supply to frequency selection and amplifier module. Their parameters (frequency band, ATT, power, and alarm) can not be read or set.

On

Pre-ATT

Adjusting the system gain by the Pre-ATT.

The setting range of UL/DL Pre-ATT is 0~30dB

20dB for MOU

0dB for RRU

Chassis Over-temperature threshold

Setting the upper-temperature threshold of enclosure. A measured temperature is shown.

If the measured temperature reaches the threshold, an alarm is generated.

The setting range for RRU is -127 ~

127 degree C.

80 degree C for RRU

DL Output Power Low threshold

If the measured power value is lower than the threshold setting, the appropriate uplink/downlink power alarm will be generated.

The setting range for RRU output power low threshold is

22~42dBm

21dBm for RRU

DL Input Power Overload threshold

If the measured power value is higher than the threshold setting, the appropriate downlink power alarm will be generated.

The setting range for MOU input power overload threshold is: -15~5dBm

6dBm for MOU

Table 23: Management - RF parameters

ra-1900_qi_1-1-0

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