interlink training rev c

InterLinkInterLink

The new comprehensiveThe new comprehensivefamily of trunk SDH radiofamily of trunk SDH radio

5 DAYS TRAINING SCHEDULE5 DAYS TRAINING SCHEDULEINTERLINKINTERLINK TRAINING COURSE TRAINING COURSE

Day / Time

0830 - 0930

0930 - 0950

1100 - 1200

0950 - 1050

1300 - 1350

1200 - 1300

1400 - 1500

Introduction to SDH Theory

ElementConfiguration

Transceiver

Tea Break Tea BreakTea Break

Transceiver

LunchLunchLunch

1 32 4 5

NEW NMS

NEW NMSInterface Board

Tea BreaKTea Break

Modem Service Board

Supervisory & RPS

Interface Board

Auxilliary Board

SDH Theory

SystemOverview

Supervisory & RPS

NEW NMS

SystemOverviewSystemOverview

Transceiver

SDHSDH THEORY THEORY

SDH FrameSDH FrameFrame Header + Payload = Synchronous Transport Module (STM)

SOH - Section OverheadSynchronisation, supervision and maintenance

PayloadPath signals (PDH, IP, ATM)

SDH Frame StructureSDH Frame Structure

◆ Use of SOH is implemented according to ITU-T G.707◆ Each byte in SOH is 64kb/s channel◆ Some SOH byte used for framing, performance monitoring &

internal signalling◆ Others unused bytes used for 64kb/s user channels, 2Mb/s

wayside, SVCE telephone or DCC

SDH Multiplexing StructureSDH Multiplexing Structure

SOH - Section OverheadSOH - Section Overhead

◆ A1: Frameword (11110110)◆ A2: Frameword (00101000)◆ J0: Regenerator Section Trace◆ B1: BIP-8 checksum for RST◆ B2: BIP-24 checksum for MST

3 bytes in RSOH (MS#1, MS#2 and MS#3) are used for radio specific purposes:◆ MS#1: Radio Protection Switching control◆ MS#2: Radio Protection Switching control◆ MS#3: RF-id, remote reset, ATPC and E/M-wire for E1, E2 and F1

SOH - Section OverheadSOH - Section Overhead

◆ E1-byte: Orderwire◆ F1-byte: User channel, V.11 or G.703 interface optional◆ D1-D3 bytes: Embedded control channel - Regenerator (ECC-R)◆ D4-D12 bytes:Embedded control channel - Multiplexer (ECC-M)◆ E2-byte: Orderwire available when MS-termination is used◆ K1/K2: APS signalling (not used in the radio relay equipment)◆ MS-RDI: Multiplex Section - Remote Defect Indication◆ S1 (b5-b8): Synchronisation Status Message◆ M1-byte: Multiplex Section - Remote Error Identifier (MS-REI) ◆ B1/B2-byte: BIP-8 / BIP-24◆ A1/A2-byte: Frameword◆ H1-H3 bytes: Pointer

Other SOH-bytesOther SOH-bytes

Section LayersSection Layers

MST - Multiplexer Section Termination (DXC, ADM, TM)RST - Regenerator Section Termination (RT, RR, OR)MS - Multiplexer SectionRS - Regenerator Section

Radio Systems Regenerator Sections

RRRRRT RRTSTM-nMux

T-TNNI

T-TNNIRadio

terminalRadio

regeneratorRadio

terminal

STM-nMux

Opticalfibre

RS RS RS RSMS

The Radio Relay is normally configured for RST, avoiding theneed for synchronisation as all bearers and directions areindependent and transparent for the multiplexerssynchronisation.

Path LayersPath Layers

Regenerator Section Termination (RST)Regenerator Section Termination (RST)

◆ With this configuration, equipment will monitor andre-generate B1 pulses. M1 REI & B2 pulses will onlybe monitored.

◆ Synchronisation:✹ Normal Situation

➤ Radio transmitting direction : STM-1 signal derived fromline side

➤ Radio receiving direction : STM-1 signal derived fromradio side

✹ Failure➤ Both directions : Internal 2.048MHz oscillator (AIS insert

indication.

MultiplexerMultiplexer Section Termination (MST) Section Termination (MST)

◆ With this configuration, equipment will monitor andre-generate B1, M1-REI & B2 pulses.

SynchronisationSynchronisation

Normal Situation

Radio transmitting direction : STM-1 signal derived from line side

Radio receiving direction : STM-1 signal derived from radio side

Failure

Both directions : Internal 2.048 Mhz oscillator (AIS insert indication)

TechnicalTechnical Specifications Specifications

Main parametersMain parameters◆ SDH, STM-1 (155 Mb/s)

◆ Broad RF frequency coverage 4 ⇒ 11GHz

◆ RF channel bandwidth & Modulation method➤ STM-1 ~ 30 MHz RF spacing 128TCM➤ STM-1 40 MHz RF spacing 64TCM

◆ Build-in Radio Protection Switching system

Frequency BandsFrequency Bands

Frequencyband

Channelspacing Comments

3.6 - 4.2 GHz

4.4 - 5.0 GHz

5.9 - 6.4 GHz

6.4 - 7.1 GHz

7.1 - 7.7 GHz

7.7 - 8.3 GHz

10.7 - 11.7 GHz

29/40 MHz

30/40 MHz

29.65 MHz

40 MHz

28 MHz

29.65 MHz

40 MHz

ITU-R F.382/F.635

ITU-R F.1099

ITU-R F.383

ITU-R F.384

ITU-R F.385

ITU-R F.386

ITU-R F-387

Technical DataTechnical DataSystem GainSystem Gain

System Gain in dB between Pt B & B’ (BER = 10E-3)

Technical Data - RF ParametersTechnical Data - RF Parameters

Frequency band [GHz] 4 5 L6 U6 7 8 11

Modulation [TCM] 128/64 128/64 128 64 128 128 64

RF Channel Spacing [MHz] 29.65/40 30/40 29.65 40 28 29.65 40

Transmitted Power [dBm] (B’) +29 +29 +29 +29 +28 +28 +26

Receiver Threshold BER 10-6

[dBm] (B)-69/-72 -69/-72 -69 -72 -68 -68 -71

System Gain BER 10-6 (B’-B) 98/101 98/101 98 101 96 96 97

Dynamic Range [dB] 70

ATPC Range [dB] >15

Power Supply [VDC] -48

Power Consumption Average 108 W for 1+0/203 W for Hot Standby

Line Interface STM-1 electrical / 75 Ohm G.703 / DIN47297 1.0/2.3 mm

STM-1 optical / S-1.1 G957/ LC connectorOC-3 optical / SR-0 multimode / MT-RJ connector

Tributary Interface(planned)

21 x 2 Mb/s / 120 ohm G.703 / Multiconnector3 x 34 or 3 x 45 / 75 ohm G.703 / DIN47297 1.0/2.3 mm

Auxiliary traffic 2 Mb/s wayside / 120 ohm G.703/ RJ-45

4x64 kb/s / G.703-V.11 / MulticonnectorIP traffic (10Base-T <> ECC <> 10Base-T)

Management LCT port / RS-232 (DTE) / 9 pin D-sub male

10BaseT / IEEE802.3 / RJ-452 x Network Interface/ RS-485 / 9 pin D-sub female

Technical Data - InterfacesTechnical Data - Interfaces

Technical Data - Technical ParametersTechnical Data - Technical Parameters

1+0/1+1/2+0 system(W)x(D)x(H)

One sub-rack535 mm x 300 mm x 500 mm

2+1/3+1/4+0 system(W)x(D)x(H)

Two sub-rackstotal 535 mm x 300 mm x 500 mm

Temperature range Indoor mounted -5°C to +50°C

Weights (1+1) 25 kg

Rack type 19” or ETSI 600mm

Technical data - ManagementTechnical data - Management◆ Standardized use of the ECC according to ITU-T Rec. G.784

◆ Interface for local and sub-network management, Nera

proprietary protocol (Q1):➤ LCT interface: RS-232,

➤ Ethernet interface : 10BaseT

➤ Network interface (NI): RS-485

◆ Built-in IP routing (OSPF) - Ethernet <> DCC channel

◆ NEW-NMS - Nera NMS/LCT for configuration and radio

network management. (Standard PC running Windows)

Technical Data - Management FunctionsTechnical Data - Management Functions

◆ Fault management➤ Current alarms➤ Alarm log - 10 000 events

◆ Performance management➤ Performance records based on G.826 parameters

➤ B1, M1 and B2 - 15 min, 24 hour and month records➤ current and last 24 hour, current and last month, current

and last sixteen 15 min.

◆ Security management➤ User name and password➤ Security log - 1000 events

ConceptConcept

◆ Compact SDH radio-relay transmissionsystem

◆ STM-1 capacity

◆ Indoor Mounted

InterLinkInterLinka new concepta new concept

◆ Compact modular concept for ETSI or19” racks

➤ Easy expansion

➤ Up to 8 TRX per rack

◆ Flexible configurations➤ Plug-in STM-1 interface

➤ 1+0 to 7+1

➤ Space diversity

➤ Co-channel operation

◆ Powerful management solutions

Mechanical LayoutMechanical Layout

◆ 1+1 Terminal

◆ Subrack with branching andsmall connection panel

◆ Transceivers and plug-inunits

◆ Front cover

Mechanical layoutMechanical layout

◆ 3+1 Terminal

◆ Two subracks with branchingand large connection panel

◆ Transceivers and plug-inunits

◆ Front cover

RF Tx Filter BranchingNetwork(*) Feeder

Z' B' C' D'A'

FeederD

BranchingNetwork(*)

C BRF Rx Filter

AReceiver

EDemodulator

ModulatorE'

MAIN RECEIVER PATH

Feeder BranchingNetwork(*)

CcRF Rx Filter Receiver

DIVERSITY RECEIVER PATH

TRANSMITTER PATH

Transmitter

DD BB AA

(*) no filtering included(**) connection at IF

A 155, 45, 34 or 21x2 Mbit/s interface is used at points Z & Z'

Principal block diagram Principal block diagram InterLinkInterLink

Interface Baseband Board

System block diagramSystem block diagram

Supervisory Board

STM-1, 1+1 TERMINAL

LANV.11 NIRS232, PC

RS232, PC

155.520 Mb/s

2 Mb/s Wayside

AuxiliaryServices Board

SVCE Board Ctrl.PA

Modem Board Channel P

155.520 Mb/s

TransceiverIF

MT comm.

Modem Board Channel 1155.520 Mb/s TransceiverIF

MT comm.

Ctrl. Ctrl.

Branching

Power FilteringBoard x 2 Alarm Display & Relay Board

InterLink Radio RelayInterLink Radio Relay

Local Craft Terminal Network Interface (Nera proprietary)

LCT =NI =

DXC/ADM

Super-vision

STM-1TributaryModule

Super-vision

Connection toSDH Network

LAN LCTNI

STM-1Electrical/Optical

RadioTx/Rx

ModemSTM-1

RadioTx/Rx

ModemSTM-1

Servicechannel Aux.

EOW 4x64kbPABX

HardwareHardware Overview Overview

INTFC C

OUTPUT

INTFC B

OUTPUT

INTFC A4

INTFC C

INPUTOUTPUT

INTFC B

OUTPUT

INTFC A5

INTFC C

INPUTOUTPUT

INTFC B

OUTPUT

INTFC A6

INTFC C

INPUTOUTPUT

INTFC B

OUTPUT

INTFC A7

INTFC C

INPUTOUTPUT

INTFC B

OUTPUT

INTFC A8

INTFC C

INPUTOUTPUT

INTFC B

OUTPUT

INTFC A9

INTFC C

INPUTOUTPUT

INTFC B

OUTPUT

INTFC A10

TRANSCEIVER POWER CONNECTIONSTB2 TB3

IC1S1 J1 (EXT CON) J2 (SU TEST)

- GND + - GND + - GND + - GND +

RMVRST

INTERFACE BASEBAND BD

MODEM BD

SUPERVISORY BD

WARNING

TRANSCEIVER

WARNING

TRANSCEIVER

ALM ALM

PWR PWR

RMVRST

AUXILLARY BD

RMVRST

AUXILLARY BD

SVCE BD

RMVRST

SVCE BDALM

Transceiver CHP

TransceiverCH1

Modem bd. CHP

Modem bd. CH1

User interface area

Rack Layout, 1+1Rack Layout, 1+1

Power Unit 1

Power Unit 2

External connections/transceiver power

Interface bd.CH1

LCT1 connection

Supervisory board

SVCE/Auxillary Bd.SVCE/AuxillarySVCE/Auxillary Bd.SVCE/Auxillary Bd.

Connection panel, smaller systemsConnection panel, smaller systems

Board interconnection area

User Interface area

External connections & transceiverpower connections

+ - + - + - + -

TRANSCEIVER POWER CONNECTIONSTB2 TB3 IC1 S1 J1 (EXT CON) J2 (SU TEST)

10 9 8 7 6 5 4 3

10 9 8 7 6 5 4 3 (SU)

1 (PWR1)

2 (PWR2)

0 (ALMS)

9 8 7 6 5 410INTFC A INTFC A INTFC A INTFC A INTFC A INTFC AINTFC A

INTFC B

INPUTOUTPUT

INTFC B

INPUTOUTPUT

INTFC B

INPUTOUTPUT

INTFC B

INPUTOUTPUT

INTFC B

INPUTOUTPUT

INTFC B

INPUTOUTPUT

INTFC B

INPUTOUTPUT

INTFC C

INPUTOUTPUT

INTFC C

INPUTOUTPUT

INTFC C

INPUTOUTPUT

INTFC C

INPUTOUTPUT

INTFC C

INPUTOUTPUT

INTFC C

INPUTOUTPUT

INTFC C

INPUTOUTPUT

PHONE5 PHONE4

LAN(TP) 3

2 1PWR1

LAN(AUI)

123123

EEPROM

IF-connectorsto/fromtransceivers

External connectionsExternal connections

EEPROM

User interface area

Power 1

Power 2

LAN (TP)

Phone (slot position 4)Phone (slot position 5)

External connections &transceiver power connections

Alarm output connections

Internal power distributionfor transceivers

8 external alarm inputsSU test-connector (serial)

Subrack addressEeprom for inventory data

Data input/output connections, (board dependent)

10 456789Slot numbering

Data input/output connections,coaxial (board dependent)

34/45 Mb/s

TB 2 TB 3 J1 J2S1

Date: 12.05.00 Rev. IFile: NL2000 mekanikk.dsf

+ - + - + - + -

10 9 8 7 6 5 4 320 19 18 17 16 15 14 13 12 1121

1 (PWR1)

10 9 8 7 6 5 4 3 (SU)1112131415161718192021

2 (PWR2)

0 (ALMS)

9 8 7 6 5 421 14 13 12 11 1019 18 17 16 1520INTFC A INTFC A INTFC A INTFC A INTFC A INTFC AINTFC A INTFC A INTFC A INTFC A INTFC A INTFC AINTFC A INTFC A INTFC A INTFC A INTFC AINTFC A

INTFC B

INPUTOUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

PHONE5 PHONE4

LAN(TP) 3

2 1PWR1

Rack Layout, larger systemsRack Layout, larger systems

Transceiver rack

Modem, baseband &power distribution rack

Connection panel, larger systems, sub rack 2Connection panel, larger systems, sub rack 2

+ - + - + - + -

10 9 8 7 6 5 4 320 19 18 17 16 15 14 13 12 1121

1 (PWR1)

10 9 8 7 6 5 4 3 (SU)1112131415161718192021

2 (PWR2)

0 (ALMS)

9 8 7 6 5 421 14 13 12 11 1019 18 17 16 1520INTFC A INTFC A INTFC A INTFC A INTFC A INTFC AINTFC A INTFC A INTFC A INTFC A INTFC A INTFC AINTFC A INTFC A INTFC A INTFC A INTFC AINTFC A

INTFC B

INPUTOUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

OUTPUT

INTFC C

INPUTOUTPUT

PHONE5 PHONE4

LAN(TP) 3

2 1PWR1

LAN(AUI)

123123

User Interface area

Board interconnection area

External connections &transceiver power connections

Contra Directional, G.703

Co Directional, G.703

X Input Signal

Output Signal

Not Connected

123456

a b c d e

123456123456123456

G.703, Ch1

V.11, Ch2

Byte V.11 (Tx/Rx), Ch2

G.703, Ch3

V.11, Ch4

Byte V.11 (Tx/Rx), Ch4

Other EquipmentControl

EOWCall

4W, E/M-WireGND

Ext. Loudsp. signal & GNDExt. Tlf. Tip & RingGND

Service Boardwo/PABX(2KNF232B-1)

Data Input/output Connectors(multipurpose Connectors;board dependent)

External connectionsExternal connections

Data Input/outputConnectors(multipurposeConnectors; boarddependent)

a b c d e1

xx . ..

2 Mb/s Wayside

= 2 Mb/s wayside

= Output signal

= Input signal

Line InterfaceBoard(2NCS590x-xx)

Future options

Coaxial CableCoaxial Cable

1.9 MHz 4.75 MHz 140 MHz 350 MHz frequency

-10 dBm

• IF-signal to ODU• MT-comsignal to IDU

• MT-com signal toODU

• IF-signal to IDU

-10 dBm

System OverviewSystem Overview Rack Layout Rack Layout

Example of ETSI Rack ArrangementExample of ETSI Rack Arrangement

1+0 Terminal(s), 1 Polarisation, 1+0 Terminal(s), 1 Polarisation, inclincl. Space Diversity. Space DiversityMain SD

System layout

INTFC C

OUTPUT

INTFC B

OUTPUT

INTFC A4

INTFC C

OUTPUT

IN T FC B

OUTPUT

INTFC A5

INTFC C

OUTPUT

IN TF C B

OUTPUT

INTF C A6

INTFC C

OUTPUT

IN T FC B

OUTPUT

INTFC A7

INTFC C

OUTPUT

IN T FC B

OUTPUT

INTFC A8

INTFC C

OUTPUT

IN TF C B

OUTPUT

INTF C A9

INTFC C

OUTPUT

IN TF C B

OUTPUT

INTFC A10

- GND + - GND + - GND + - GND +

RMVRST

MODEM BD

SVCE BD

SUPERVISORY BD

ALM ALM

PWR PWR

RMVRST

WARNING

TRANSCEIVER

Branching without filter and WG layout (typical)

Dir1SD Main

1+1/2+0 Terminal(s), 1 Polarisation, 1+1/2+0 Terminal(s), 1 Polarisation, inclincl. Space Diversity. Space Diversity

INTFC C

OUTPUT

IN TFC B

OUTPUT

INTFC A4

IN TFC C

OUTPUT

INTF C B

OUTPUT

INTF C A5

INTFC C

OUTPUT

INTF C B

OUTPUT

INTFC A6

INTFC C

OUTPUT

IN TF C B

OUTPUT

INTFC A7

INTFC C

OUTPUT

INT F C B

OUTPUT

INTFC A8

INTFC C

OUTPUT

INT F C B

OUTPUT

INTFC A9

INTFC C

OUTPUT

INT F C B

OUTPUT

INTFC A10

- GND + - GND + - GND + - GND +

RMVRST

SVCE BD

SUPERVISORY BD

WARNING

TRANSCEIVER

WARNING

TRANSCEIVER

ALM ALM

PWR PWR

ALM ALM

PWR PWR

RMVRST

Dir1 Dir1

1+1/2+0 Terminal(s), 2 Polarisation, 1+1/2+0 Terminal(s), 2 Polarisation, inclincl. Space Diversity. Space DiversityMain SD

System layout

Branching without filter and WG layout (typical)

Dir1, H(V)SD Main

Dir1, V(H)

ElementElement Configuration Configuration

IntroductionIntroduction

Plug & Play

Full range management– Configuration– Fault– Performance– Security

SNMP & Internet

Plug & Play

Full range management– Configuration– Fault– Performance– Security

SNMP & Internet

Nera Element View (NEW)Nera Element View (NEW)◆ Fully compliant 32-bits Windows application

◆ 2 Versions➤ NEW-Configurator➤ NEW-NMS

◆ System Requirement◆ New Configurator : Win 98, Win NT 4.0 or Win 2000◆ NEW NMS : Win NT or Win 2000

NEW CONFIGURATORNEW CONFIGURATOR◆ Only for Configuration and Monitoring Purposes◆ Typical network management not supported

➤ Database logging➤ Map View

➤ System Requirement◆ New Configurator : Win 98, Win NT 4.0 or Win 2000◆ NEW NMS : Win NT or Win 2000

GeneralGeneral◆ Designed to perform network management functions

◆ Used to control one Network Element / managed an entirenetwork

◆ Graphical User Interface

◆ Follows a “Plug & Play” philosophy with network auto-discovery capability using configuration data in NE tobuild managed network.

➤ Automatically send a broadcast message for discovery ofNEs

➤ NE will response back with identifications and topology information.

◆ Communicates with managed elements via➤ Serial RS-232 Port➤ TCP/IP

◆ Communication Principals➤ Communications with NEs in Q&A fashion.

GeneralGeneral

Configuration ManagementConfiguration Management◆ Configuration Management

➤ Automatic configuration of networks based on information in NEs

➤ Create or delete Network Elements

➤ Inspect and modify Network Elements and network configuration

➤ Initialising of equipment equipment. Setup associations and execute actions

➤ Configuration templates for easy set up of new NEs

➤ Remote Control

➤ Upload of NE configuration to NEW_NMS and storing in file

➤ Download of configuration file to network elements

➤ Test facilities like loop-backs, PRBS insert and CRC checks➤ Clock synchronization, manual or scheduled.➤ Software download➤ Resetting➤ Disgnose➤ Inventory, H/W and Software version➤ ATPC

Configuration ManagementConfiguration Management

• NL2000 tree view• Housekeeping with physical

or schematic view

Configuration managementConfiguration management

• Software versions

• Software download

• Configuration upload• Configuration download

• Unit inventory

System Configuration (1)System Configuration (1)

System configuration (7)System configuration (7)

System configuration (8)System configuration (8)

System changedetection

Detection of newboard

Fault ManagementFault Management◆ Fault Management

➤ Contains functions for acquisition, presentation and storage ofalarms and events from networks to be managed.

➤ Functionality based on the following ITU-T Recommendations:X.733 - Alarm Reporting FunctionX.734 - Event Report Management FunctionX.735 - Log Control FunctionQ.821 - Alarm Surveillance

◆ Following Standard Given: ➤ Alarm acquisition in the form of receiving event and alarm

notifications➤ Present alarm in logical manner. Discriminate between equipment

related alarm and traffic affecting alarms. For traffic affecting alarms direction, channel and equipment unit is given

➤ Alarm severity level classification➤ Alarm blocking (masking)➤ Event Log storage (Log control based on X.735)➤ Report functions for the historical alarm and event log➤ External alarms➤ Alarm on analogue monitoring threshold crossing, like received

input level etc.➤ Real time Graphic display and alphanumeric alarm lists including

alarm class, time stamp

Fault ManagementFault Management

• Current Alarm Status• NE Alarm Log

• NE Alarm Edit Status

Performance ManagementPerformance Management

◆ Performance Management➤ Performance monitoring according to G.826➤ Retrieve and display contents of performance➤ Data collection intervals 15 min, day and month➤ Suspend / resume data collection➤ Initialise / reset performance monitoring data➤ Parity and Viterbi Error measurements➤ Analogue measurements:

✹ Graphical and numerical presentation of analogue values for NEs Receiver Input level statistics

Performance ManagementPerformance Management

• Performance Records

• Cumulative counters

• Analog readings

Security ManagementSecurity Management◆ Security Management

➤ Handles security partly by means of security functions in NEW_NMS➤ and partly by access control by the NEs and supports the main➤ security features of ITU Recommendations:

✹ X.736✹ X.740✹ X.741✹ X.800

➤ System Control Security by✹ User names✹ User Groups with several levels of privileges✹ Passwords for both user and group✹ Logging of user activity

➤ 4 levels of Privileges✹ Passive Users - Only able to monitor data. Not able to collect data or

change network configuration✹ Active Users - Able to collect data and change some communication settings

but not commands that make unrecoverable configuration changes

✹ Master Users - Have access to all NEW commands except those attended with user account adminstration

✹ Admin Users - Have access to all NEW commands. Administrator and will be responsible for adding, deleting and managing user accounts and privileges

Security ManagementSecurity Management

RadioRadioNetworkingNetworking

Radio NetworkingRadio Networking

◆ To obtain centralised management points innetwork.

◆ Realised by Addressing Scheme, SWSettings & Physical Connections.

✸ Addressing Scheme:Element Address = Section number. NE number

✸ SW settings:Communication ports and routing table

✸ Physical connection:Radio, cable

Communication Ports - DCCCommunication Ports - DCC

◆ DCC - Data communication channel◆ Radio direction (DCCR) and line direction

(DCCL) available◆ The communication ports are different interfaces for

interconnecting different NEs to form a managementnetwork.

◆ NE communication via dedicated bytes in SOH

Configuration Setting (1)Configuration Setting (1)◆ DCC ports are used to interconnect Network Elements

through the SOH of the SDH traffic. ✸ DCC Line✸ DCC Radio✸ Network Interface (NI)✸ Ethernet✸ IP Tunneling

◆ For InterLink ONLY, up to three different management communication channels can be used while one DCC channel can be used for each Radio direction.

◆ The traffic channel where the DCC is inserted on DCC Line is limited system configuration.

◆ DCC port is always enabled on Radio Direction.

Configuration Setting (2)Configuration Setting (2)

◆ InterLink routing the DCC-channel in three line directions via the Interface Baseband Board.

◆ Especially useful in bigger SDH system or when using networkingwithout NI cabling.

Configuration Setting - NI (3)Configuration Setting - NI (3)

◆ NI ports are used to interconnect Network Elements through electricalcables.

◆ Electrical Interface of NI is V.11

Communication Ports - LCTCommunication Ports - LCT

◆ LCT - Local Craft Terminal◆ RS-232 port for management communication

Network of NE managed via LCT

◆ Baud Rate setting for RS-232 communication

Note : Changing of baud Rate on LCT interface will make you lose contact with NE until reconfiguration of NEW NMS baud Rate

Communication Ports - EthernetCommunication Ports - Ethernet

◆ Interfacing Nera Radio Equipment to Local Area Network◆ Radio networking & remote management possibilities

◆ Ethernet Port needs to be enabled to be managed using IP

◆ IP Address, Subnet Mask & Default gateway to be provided

Communication Ports - IP TunnelingCommunication Ports - IP Tunneling

◆ Radio Networking via LAN based on TCP/IP.

Configuration Setting -IP Tunneling (6)Configuration Setting -IP Tunneling (6)

◆ 1 or 2 tunnels can be created.◆ Remote IP address as input parameter. Element address will be updated

automatically.◆ Setup is only required at one side of the tunnel.

Section &Section & NE Addressing NE Addressing

CityLink(1,1)

CityLink(4,2)

InterLink (3,1)

Section 3

CityLink(2,1)

CityLink (1,2)

NI 1 NI 1

Section 1 Section 2

CityLink (2,2)

InterLink (3,2)

CityLink(4,1)

Section 4

Section & NE AddressingSection & NE Addressing

DCC DCC

Element IDElement ID

◆ Section Address = Wireless Hop◆ NE Address = Station Address ie 1 / 2.

◆ Each NE dynamically evolves anoptimal routing table

◆ Initial routing table can be set by user◆ Initial entries restore the network

connections faster after power failure(NE restart)

◆ Manual routing entries available in initialtable (not recommended)

◆ Weight indicates the distance to networkelement

Configuration SettingConfiguration Setting

ExercisesExercises

Equipment Configuration

1. Connect two terminals via DCC Line. Verify correctsetup by the NEW-NMS and element routing table.

2. Connect two terminals via NI-NI. Verify correct set-up byNEW-NMS and element routing table.

Exercises - Radio Networking

NI Wiring DiagramNI Wiring Diagram

FrequencyFrequency Setting Setting

Alternate Channel Alternate Alternate Channel Alternate PolarisationPolarisation(ACAP)(ACAP)

◆ Traditional RF Channel Arrangement.◆ Allows up to 3+1 / 4+0 on one polarisation or up to

7+1 / 8+0 on dual polarisation◆ Some frequency band have less than 8 channel frequency.◆ Maximum system configuration depends on frequency available

Co-Channel Dual Polarisation (CCDP)Co-Channel Dual Polarisation (CCDP)

◆ Channel arrangement doubles the number of STM-1 carries on available frequency

◆ Maximum number of frequency on each polarisation is four◆ Maximum system configuration is 7+1 / 8+0 on one terminal◆ Maximum of sixteen STM-1 can be carried in the frequency band with eight

RF channels (or more).◆ Requires optional XPIC feature on all radio channels

Alternate Channel Co-Polarisation (ACCP)Alternate Channel Co-Polarisation (ACCP)

◆ This channel arrangement allows for the use of adjacent channels on single polarisation

◆ In frequency plans with 40MHz channel spacing, this option is standard◆ In frequency band with less than 40MHz channel spacing, this arrangement

requires the “narrow band RF filter” for each RF Channel

ACCP + CCDPACCP + CCDP

◆ This channel arrangement combines adjacent channel & co-channel dual polarised systems.

◆ Requires “Narrow Band RF Filter” in frequency band with channel spacing less than 40MHz

◆ Requires optional XPIC feature on all radio channels.

◆ TX Filter : Centre frequency & BW of the TX branching filter◆ RX Filter : Centre frequency & BW of RX branching filter◆ TX Band : The frequency band supported by the Transmitter◆ RX Band : The frequency band supported by the Receiver◆ Tx LO synth: Last calibrated LO TX Frequency◆ Rx LO synth: Last calibrated LO TX Frequency

Transceiver Frequency InformationTransceiver Frequency Information

Frequency Setting (1)Frequency Setting (1)

Space DiversitySpace Diversity

◆ Space Diversity System is using 2 antenna (denoted “Main” & “Space”) mounted apart

◆ Connected to one Space Diversity Transceiver to achieve better performance◆ Requires different waveguide length for 2 different antenna◆ Results in different signal propagation delays at the main and Space receiver

inputs

◆ To compensate this effect, transceiver can add delay in one of the signal paths◆ Optimal receiver performance requires an accurate delay compensation.◆ The two antenna signal are combined to get a single received signal for the

demodulation process◆ Combiner operates in either automatic mode or manual mode.

➤ Automatic Mode : Controlled by signal quality criteria derived internally in the transceiver

➤ Manual Mode : User selects which signal to use

◆ Delay Calculation = “Main / Space Waveguide Length Diffetence” x 4.2ns

◆ Valid Input Range : -6ns to +130ns

Space DiversitySpace Diversity

Automatic TransmitterAutomatic Transmitter Power Control (ATPC) Power Control (ATPC)

Modulato r

STM-1 XMTR RCVR

Demodulator

STM -1

ATPC-ctrl

Modula tor

STM-1 XM TRRCVR

Demodu lator

STM -1

SupervisoryUnit

ATPC-ctrl

ACU SupervisoryUnit

A TP C

ATPC-ctrl

140/155 M b/sCMI, e lectrical

rmRe f-level

140/155 M b/sCMI, e lectrical

Ref-level

ATPC-ctrl 0-10

vol ta

1 40/155 Mb /sC MI, electrical

140/155 Mb /sC MI, electrical

Station 2Station 1

ATPC STM-1 Radio

Transmitter Power ControlTransmitter Power Control

◆ Transceiver Unit provides a set of power control.➤ MTPC➤ ATPC

◆ ATPC helps minimize interference probability in network.◆ Remote Transmitter will regulate its output such that Received

power is equal to reference level◆ In MTPC mode, the transmitter output level can be set.◆ RF Input alarm threshold settings. Alarms will be raised

when input levels exceeds upper or lower limits ◆ Information is transmitted between Radio Hop

on MS3 of SOH byte

ExercisesExercises

Supervisory (SU) & RadioSupervisory (SU) & Radio Protection Switching (RPS) Protection Switching (RPS)

Supervisory Board (SU)Supervisory Board (SU)

◆ Provides operational control of System Configurations & Radio Protection Switching (RPS)

◆ RPS Function an integral part of SU Board◆ Main set-up and control facility in equipment◆ Uses the SOH byte (Dcc: D1-D3) for communication between

Radio Hop◆ Dcc byte User-selectable if default D1-D3 byte used by Mux.

◆ Supervisory Information between Radio hop protected. (CH1 & CH2 used 2+0 system; CHP & CH1 in a 1+1 System)

◆ MS1 & MS2 bytes used for transmitting RPS information

Supervisory Board (SU)Supervisory Board (SU)

RPS Switching SystemRPS Switching System

• RPS configuration

• Manual Switching

• RPS Status

RPS Switching Configuration (1)RPS Switching Configuration (1)

◆ Switching always initiated at Received End

◆ Monitoring of system performance at Receive End. Detection of degradation in performance will result in regular channel switching to CH P for protection.

◆ Local Receive Switch will be aligned to either CH 1 / 2.Remote Transmit Bridge will follow suit and aligned either toCH 1 / 2.

◆ Received Direction will be the Master while TransmitDirection will be the Slave in switching operation

◆ Local Rx Switch➤ Revertive

✹ Revert back to its original position after clearance of faults / error. i.e. Not protection of channels

➤ Non-Revertive✹ Stays in its position even after clearance of faults / error.✹ Will take up new position only upon detection of new faults /

errors

◆ Remote Tx Bridge➤ Revertive

✹ Revert to CH 1 upon clearance of faults / errors.

➤ Non-Revertive✹ Stays in its position even after clearance of faults / error.✹ Will take up new position only upon detection of new faults /

errors

◆ 3 different Configuration➤ 1st Configurations

✹ Local Rx Switch : Non-Revertive✹ Remote Tx Bridge : Non-Revertive

➤ 2nd Configuration✹ Local Rx Switch : Revertive✹ Remote Tx Bridge : Non-Revertive

➤ 3rd Configuration✹ Local Rx Switch : Revertive✹ Remote Tx Bridge : Revertive (CH1)

◆ Priority➤ Determine the priority of each channels➤ Providing a higher value for either channel determines the

other channel have higher priority.➤ O means you do not want the channel to be protected

◆ Switch Limit➤ OOS➤ HBER

✹ User Defined using NEW✹ Default 10E-3

➤ LBER✹ User Defined using NEW✹ Default 10E-6

➤ EW✹ User Defined using NEW✹ Default 10E-10

➤ Low RF

◆ Restore Limit➤ EW

✹ User Defined using NEW✹ Default 10E-10

➤ Low RF

◆ Alignment Timeout➤ Used during Manual Switching➤ Maximum time allowable to effect a switch operation without

causing errors to be introduced into the system➤ Failure to do so within stated time will result in timeout. Ie no

switching occurs.

◆ Switch Status of Rx Local Bridge and Tx Remote Bridge

◆ Performance Alarms

ModemModemBoardBoard

Modem Block DiagramModem Block Diagram

◆ In Transmit-Direction, SORP transforms 8 parallel lines each 19.44Mb/s NRZ/CMOS data, clock, and sync to 4x 38.88Mb/s.

◆ Output from SORP feeds the modem where the signal is filtered and modulated to 64 / 128TCM.

◆ Output from Modulator have an IF of 350MHz, -10dBm.◆ Input IF from receiver is 140MHz, -10dBm◆ Modem filters, equalized & amplifies the signal before

transforming signal back to digital signal.◆ A Vertibi decoder for error-correction & adaptive equalizer for

equalization of selective fading.

Modem Board (1)Modem Board (1)

◆ Demodulator generates pulses when transmission errors detected.

◆ Number of pulse per second is measurement of quality of received signals

◆ Pulses can be routed out on connection panel.

Alarm Name Default BER Threshold Default Alarm SeverityHBERLBEREW-BER

10E-310E-610E-10

MajorMinorWarning

Advanced looping facilities

Super-vision

STM-1TributaryModule

Super-vision

LAN LCTNI

STM-1Electrical/Optical

RadioTx/Rx

Servicechannel Aux.

EOW 4x64kbPABX

• Interface Baseband Bd looping

• Modem Bd IF looping

• 2Mb/s Wayside looping

• Far end Modem baseband looping, on 155.52Mb/s STM-1

• PRBS Test Pattern on 2 Mb/s Wayside and Bit Error Counter

• Loops timed from LCT/NMS

ConclusionConclusion

◆ Ultra compact Trunk Radio

◆ Modular and Flexible

◆ Easily Expandable

◆ Advanced Configuration and Management

◆ Low power consumption

interlink training rev c

soh byte

control ms

regenerator section

rsoh ms

radio protection

radio relay equipment

orderwire f1byte

unused bytes

Documents

interlink-engineering mb # 0310-2210696

cfgm & critical incm - interlink

thermal wave ii - interlink supply

interlink split-mount manual

general pump htc series - interlink supply

interlink rev.d

interlink networks, llc · the interlink networks...

may 28 interlink) · 2016. 3. 30. · 1 8 of 88 global...

business interlink used with xml guide

what is ts interlink? - chartered trading standards...

interlink parts

boxxer xl owner’s manual - interlink supply

nera interlink technical description

bulletin - missions interlink

grw side tipper · side tipper configurations and models...

interlink publishing · interlink also represents the...

your guide to interlink express

super extraction system - interlink supply

north ru6500 respirator training - interlink supply ru6500...

drs bs-crm interlink™ help - digital retail solutions ·...