SDH Manual

6-38 GHz 32/128 QAMDIGITAL MICROWAVE RADIO SYSTEMSYNCHRONOUS DIGITAL HIERARCHY

PASOLINK +(STM-1/1+0 SYSTEM)

INSTRUCTION MANUAL

ROI-S04227-051E020418

NEC CorporationTOKYO, JAPAN

ROI-S04227 CAUTION

-1-

CAUTION

In the case of using at marine and coastal areas (within 3 km from theseaside), it is necessary to make measures against the damage from saltwater. For measurements against the damage from salt water to anODU, request to NEC.

CAUTION ROI-S04227

-2-2 pages

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ROI-S04227 WARNING

-1-

WARNING

1. After turning ON the equipment, wait at least 10 secondsbefore turning it OFF again. Repeatedly turning the powerON and OFF with in a short interval may cause the IDU tofail.

2. The –43 V DC power is superimposed on the centerconductor of the coaxial cable between the IDU and theODU. Connecting a test set equipment directly to thisterminal may damage it and touching the coaxial cable coremay cause electrical shock.

3. Persons performing servicing must take necessary steps toavoid electro-static discharge which may damage themodules on the IDU or cause error. Wear a conductivewrist strap connected to the grounded (G) jack on the frontof the equipment shelf. This will minimize static build-upduring servicing.

4. Do not disconnect IF cable between the IDU and the ODUin operating condition, to avoid damaging the IDU andODU. Do not remove/connect the IF cable with IDU powerON, turn IDU power OFF before remounting the IF cable.

WARNING ROI-S04227

-2-2 Pages


ROI-S04227 PREFACE

-1-

PREFACE

This instruction manual has been prepared to provide descriptive andprocedural information on the PASOLINK + equipment used in the point-to-point digital microwave radio system for the synchronous digitalhierarchy (SDH) in 1 +0 configuration.

Included are:

• Safety Information ROI-S03950-052E Safety Information

• Abbreviation ROI-S03261-056E Abbreviations

• Section I ROI-S03832-055E Description

ROI-S04077-052E Appendix Radio FrequencyPlan for Pasolink+

• Section II ROI-S03833-055E Operation

• Section III ROI-S03834-055E Installation and Initial Lineup

• Section IV ROI-S03835-055E Maintenance

PREFACE ROI-S04227

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ROI-S03950-052E SAFETY INFORMATION011122

-1-

SAFETY INFORMATION

This safety information is prepared to protect the maintenance personneland PASOLINK+equipment. To avoid hazardous conditions, read thisInstruction manual thoroughly before equipment operation. The signalwords (Danger, Warning and Caution) are used in the Instruction manualand explained as follows:

To avoid hazardous conditions, notes on the handling of equipment areprovided in the Instruction manual in places considered necessary, adhererigidly to the notes. And also the Caution and Warning labels are attachedto the IDU and ODU. And the meaning of each label is described asfollows:

Signal Word Definition

DANGERIndicates an imminently hazardoussituation which, if not avoided, willresult in death or serious injury.

WARNINGIndicates an imminently hazardoussituation which, if not avoided, couldresult in serious injury.

CAUTION

Indicates a potentially hazardoussituation which, if not avoided, mayresult in minor or moderate injury ordamage to the equipment. It is alsosaid to alert against unsafe practice.

SAFETY INFORMATION ROI-S03950

-2-

WARNING!

Turn off power at IDUbefore disconnecting cable.

! CAUTION

HOT SURFACEAvoid contact

! WARNING-43V OUTPUT

TURN OFF POWERBEFORE DISCONNECTING

I/F CABLE

6-8 GHz BAND ODU

! WARNINGTurn off power of IDU before disconnecting cable.

11-38 GHz BAND ODU

CLASS 1LASER PRODUCT

IDU FOR1+1 SYSTEM

IDU FOR1+0 SYSTEM

ROI-S03950 SAFETY INFORMATION

-3-

Do not disconnect IF cable between the IDUand the ODU in operation condition, to avoiddamaging the IDU and the ODU.

The -43 V DC power is superimposed on thecenter conductor of the IF cable between theIDU and the ODU. Connecting a testequipment directly to this terminal maydamage it and touching the coaxial cable coremay cause electrical shock.

Be careful that top surface of IDU is hot.

In a system using the OPT INTFC module, donot stare at the laser beam or look at it directlywith optical instruments. Otherwise, it mayhurt your eyes (Does not apply to Pasolink+

PDH).

WARNING!



! WARNING-43V OUTPUT


I/F CABLE

! CAUTION



SAFETY INFORMATION ROI-S03950

-4-4 Pages


ROI-S03261-056E ABBREVIATIONS011212

-1-

ABBREVIATIONS

The following abbreviations are used in the manual for the PASOLINK +/-S equipment.

ABBREVIATION DESCRIPTION

A

A-D Analogue to Digital

AGC Automatic Gain Control

AIS Alarm Indication Signal

ALC Automatic Level Control

ALM Alarm

ALS Automatic Laser Shutdown

AM Amplitude Modulation

AMI Alternate Mark Inversion

AMP Amplifier

ANS Answer

ANT Antenna

APC Automatic Phase Control

ARSR Arrester

ASC Analog Service Channel

ASK Amplitude Shift Keying

ATPC Automatic Transmitter Power Control

ATT Attenuator

AU Administrative Unit

AUX Auxiliary

B

B8ZS Bipolar with 8 Zeros Substitution

BAL Balance

ABBREVIATIONS ROI-S03261

-2-

BBE Background Block Error

BER Bit Error Rate

BNC Bayonet Navy Connector

BPF Band Pass Filter

BR Branching

B-B Back to Back

B-U Bipolar to Unipolar

C

CARR Carrier

CBL Cable

CH Channel

CISPR International Special Committee on Radio Interference

CKT Circuit

CLK Clock

CLSTR Cluster

CMI Coded Mark Inversion

COM Common

COMB Combiner

CONN Connection

CONT Control

CONV Converter

CPU Central Processing Unit

CTRL Control

CW Carrier Wave

D

D/A Digital/Analogue

D-A Digital to Analogue

DC Direct Current


ROI-S03261 ABBREVIATIONS

-3-

DCK Drop Clock

DDT Drop Data

DEC Decision

DECOD Decoder

DEM Demodulator

DEMUX Demultiplexer

DFP Drop Frame Pulse

DI Data Input

DIFF Differential

DMR Digital Microwave Radio

DNU Don’t use for Synchronization

DO Data Output

DPU Digital Processor Unit

DSC Digital Service Channel

DTE Data Terminal Equipment

DUP Duplexer

E

E/O Electrical/Optical

E-BER Excessive-Bit Error Rate

EMC Electro Magnetic Compatibility

EMI Electro Magnetic Interference

ENCOD Encoder

EOW Engineering Orderwire

EP Earthing Point

EP Equipment Priority

EPS Endless Phase Shifter

EQL Equalizer

ERR Error



-4-

ES Errored Seconds

ESD Electro Static Discharge

ESP Electro Static Protection

EXT External

F

FEC Forward Error Correction

FET Field-Effect Transistor

FG Frame Ground

FIL Filter

FREQ Frequency

FRM Frame

G

G Ground

GND Ground

H

H High

HDB-3 High Density Bipolar-3

HG High Grade

HK House Keeping

HL Hitless

HPA Higher order Path Adaptation

HPT Higher order Path Termination

HS Hot-standby

HYB Hybrid

I

I/O Input/Output

ICK Insert Clock

ID Identification



-5-

IDT Insert Data

IDU Indoor Unit

IF Intermediate Frequency

IFP Insert Frame Pulse

IN Input

INH Inhibit

INT Internal

INTFC Interface

INV Invalid

ITU International Telecommunication Union

L

L Low

LA Local Access

LAN Local Area Network

LB Loop Back

LCD Liquid Crystal Display

LCT Local Craft Terminal

LED Light Emitting Diode

LEV Level

LO Local

LOF Loss of Frame

LOM Loss of Multiframe

LOP Loss of Pointer

LOS Loss of Signal

LPF Low Pass Filter

LPT Lower order Path Termination

M

MAC Media Access Control



-6-

MAINT Maintenance

MD Modulator Demodulator

MIX Mixer

MLC Multi-Level Coding

MOD Modulator

MODEM Modulator-Demodulator

MON Monitor

MSA Multiplex Section Adaptation

MST Multiplex Section Termination

MPX Multiplexer

MS-AIS Multiplex Section Alarm Indication Signal

MSOH Multiplex Section Overhead

MS-RDI Multiplex Section Remote Defect Indication

MTPC Manual Transmitter Power Control

MUX Multiplexer

N

NC Normal Closed

NDM Normal Disconnected Mode

NE Network Element

NF Noise Figure

NM Network Manager

NMS Network Management System

NO Normal Open

NORM Normal

NRZ Nonreturn to Zero

O

OC-1 Optical Carrier-1

O/E Optical/Electrical



-7-

ODU Outdoor Unit

OFS Out of Frame Second

OH Overhead

OPR Operation

OPT Optical

OUT Output

OW Orderwire

P

PC Personal Computer

PCM Pulse Code Modulation

PDH Plesiochronous Digital Hierarchy

PH Phase

PJE Pointer Justification Event

PLL Phase-Locked Loop

PLM Payload Mismatch

PLS Pulse

PM Performance Monitor

PNMS Pasolink Network Management System

PNMT Pasolink Network Management Terminal

POH Path Overhead

PRC Primary Reference Clock

PS Power Supply

P/S Parallel/Serial

PSK Phase Shift Keying

PTR Pointer

PWR Power

Q

QAM Quadrature Amplitude Modulation



-8-

QL Quality

Q’TY Quantity

R

RCVD Received

RDI Remote Defect Indication

REC Rectifier

REQ’D Required

RF Radio Frequency

RFCOH Radio Frame Complementary Overhead

RL Relay

RMT Remote

RS Reed Solomon

RSOH Regenerator Section Overhead

RST Regenerator Section Termination

RSL Received Signal Level

RX Receive

S

S/P Serial/Parallel

S-P Serial-to-Parallel

SBIF Serial Bus Interface

SC Service Channel

SCRB Scramble

SD Signal Degrade

SDH Synchronous Digital Hierarchy

SEC SDH Equipment Clock

SEL Selector

SEL V Safety Extra-Low Voltage

SES Severely Errored Seconds



-9-

SEP Separation

SG Signal Ground

SHG Super High Grade

SMU Station Management Unit

SOH Section Overhead

SONET Synchronous Optical Network

SSM Synchronization Status Message

SSU Synchronization Supply Unit

SSU-L SSU Local

SSU-T SSU Transit

STM Synchronous Transport Module

STR Straight

SV Supervisory

SW Switch

SYNC Synchronizer

SYNTH Synthesizer

SYS System

T

TCA Threshold Crossing Alert

TERM Terminal

TIM Trace Indication Mismatch

TRANS Transformer

TRP Transmitter-Receiver Equipment

TTL Transistor-Transistor Logic

TU Tributary Unit

TUG Tributary Unit Group

TX Transmit



-10-10 pages

U

U Unit

UAS Unavailable Second

UNBAL Unbalance

UNEQ Unequipped

UNK Unknown

U-B Unipolar to Bipolar

V

VC Virtual Container

VCO Voltage Controlled Oscillator

VF Voice Frequency

V/H Vertical/Horizontal

VOL Volume

Vo-p Volt zero (0) to Peak

W

WG Waveguide

WS Wayside


ROI-S03832-055E CONTENTS020304

CL-1

6-38 GHz 32/128QAMSDH DIGITAL MICROWAVE RADIO SYSTEM

PASOLINK +

(STM-1/1+0 SYSTEM)

DESCRIPTION

CONTENTS

TITLE PAGE1. GENERAL ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1-1

2. SYSTEM DESCRIPTION ••••••••••••••••••••••••••••••••••••• 2-12.1 System Configuration •••••••••••••••••••••••••••••••••••••••••• 2-12.2 System Performance ••••••••••••••••••••••••••••••••••••••••••• 2-72.3 RF Channel Plan •••••••••••••••••••••••••••••••••••••••••••••••• 2-142.4 Alarm and Control•••••••••••••••••••••••••••••••••••••••••••••• 2-142.4.1 Alarm Indication and Reporting •••••••••••••••••••••••••••• 2-152.4.2 Performance Monitoring/Metering Data Reporting•••• 2-152.4.3 Automatic Laser Shutdown Control

(OPT INTFC Module) ••••••••••••••••••••••••••••••••••••••••••• 2-232.4.4 Automatic Transmitter Power Control •••••••••••••••••••• 2-242.4.5 Loopback Control •••••••••••••••••••••••••••••••••••••••••••••• 2-282.4.6 Network Management (Optional) ••••••••••••••••••••••••••• 2-292.4.7 Optional Interface Card ••••••••••••••••••••••••••••••••••••••• 2-302.5 Power Supply•••••••••••••••••••••••••••••••••••••••••••••••••••• 2-31

3. SUBSYSTEM DESCRIPTION •••••••••••••••••••••••••••••• 3-1INDOOR UNIT •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-1

3.1 Composition •••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-13.2 Functional Operation ••••••••••••••••••••••••••••••••••••••••••• 3-33.2.1 Modulator Section••••••••••••••••••••••••••••••••••••••••••••••• 3-53.2.2 Demodulator Section ••••••••••••••••••••••••••••••••••••••••••• 3-5

CONTENTS ROI-S03832

CL-22 pages

TITLE PAGE

OUTDOOR UNIT ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-6

3.3 Composition •••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-63.4 Functional Operation ••••••••••••••••••••••••••••••••••••••••••• 3-93.4.1 Transmitter Section••••••••••••••••••••••••••••••••••••••••••••• 3-93.4.2 Receiver Section••••••••••••••••••••••••••••••••••••••••••••••••• 3-9

ROI-S03832 GENERAL

1-1

1. GENERAL

This section provides descriptive information on the 6/7/8/11/13/15/18/23/26/38 GHz 150 MB digital microwave radio system for the synchronousdigital hierarchy (SDH).

The ( ) GHz 150 MB SDH digital microwave radio system is designed tocommunicate a synchronous transport module 1 (STM-1) signal. Itoperates in the ( ) GHz radio frequency band using the 32 quadratureamplitude modulation (QAM) or 128 QAM method and has a transmissioncapacity of 155.52 Mbps. Included herein are the system description andsubsystem description.

GENERAL ROI-S03832

1-22 pages


ROI-S03832 SYSTEM DESCRIPTION

2-1

2. SYSTEM DESCRIPTION

The system description covers outline of the system configuration, systemperformance, RF channel assignment, alarm and control, and powersupply.

2.1 System Configuration

The system consists of the MDP-150MB5T-4/MDP-150MB7T-2Modulator-Demodulator (Indoor Unit (IDU)) and TRP-( )G-1AATransmitter-Receiver (Outdoor Unit (ODU)), and the antenna (see Fig. 2-1and Table 2-1). The MDP-150MB5T-4 is used for 32 QAM system andthe MDP-150MB7T-2 for 128 QAM system.

As illustrated in Fig. 2-2, the ( ) GHz 150 MB SDH microwave radiosystem is a 1-hop (point-to-point) system between two terminal stations,and is configured in the 1 + 0 system.

Fig. 2-1 Outline of IDUs and ODU (1/2)

IDU

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

ALM

MAINT ODU

SYSTEM DESCRIPTION ROI-S03832

2-2

Fig. 2-1 Outline of IDUs and ODU (2/2)

IFL FG RX LEVMON

11-38 GHz BAND ODU

6/7/8 GHz BAND ODU


2-3/4

Table 2-1 System Composition

Equipment

Quantity

32 QAM System 128 QAM System

18 GHz 23 GHz 26 GHz 38 GHz 6 GHz 7 GHz 8 GHz 11 GHz 13 GHz 15 GHz 18 GHz 23 GHz 26 GHz 38 GHz

MDP-150MB5T-4 (G7910A) 1 1 1 1

MDP-150MB7T-2 (G7911A) 1 1 1 1 1 1 1 1 1 1

TRP-6G-1AA (SHG) (G8222A) 2

TRP-7G-1AA (SHG) (G8223[ ]) 2

TRP-8G-1AA (SHG) (G8224A) 2

TRP-11G-1AA (SHG) (G8737A) 2

TRP-13G-1AA (SHG) (G7965A) 2

TRP-15G-1AA (SHG) (G8550A) 2

TRP-18G-1AA (HG or SHG) (G8381A) 2

TRP-18G-1AA (SHG) (G8381A) 2


TRP-23G-1AA (SHG) (G7960A) 2


TRP-26G-1AA (SHG) (G8516A) 2


TRP-38G-1AA (SHG) (G8512A) 2

ANTENNA 1 1 1 1 1 1 1 1 1 1 1 1 1 1


2-5/6

Fig. 2-2 SDH Digital Microwave Radio System – 1+0 System Block Diagram

ODUIDU

ANT ANT

RF

CONT

STM-1IN/OUT

PNMS/PNMTLCTOW

Notes: 1. * Optional.2. ** Applies only to 32 QAM system.

150M INTFCANTCONTCTRLDC-DC CONVIDULAN

: Electrical STM-1 Interface: Antenna: Control: Control: DC-DC Converter: Indoor Unit (Modulator-Demodulator): Local Area Network

LCTLOMODEMODUOPT INTFCOW

: Local Craft Terminal: Local Oscillator: Modulator Demodulator: Outdoor Unit (Transmitter-Receiver): Optical STM-1 Interface: Orderwire

MODEM

DC-DCCONV

150M INTFC/

OPT INTFC

DC-DCCONV

CKT

ODU

CONT

DC-DCCONV

OW OW

IDU

RFCKT

PNMSPNMTRF CKTSTM-1SYNTHWS

: Pasolink Network Management System: Pasolink Network Management Terminal: Radio Frequency Circuit: Synchronous Transport Module-1: Synthesizer: Wayside

SYNTH(LO)

SYNTH(LO)

ODUINTFC

CTRL

LAN CARD*

STM-1IN/OUT

MODEM

DC-DCCONV

150M INTFC/

OPT INTFC

ODUINTFC

CTRL

LAN CARD*10 BASE-T 10 BASE-T

PNMS/PNMTLCTOW

WS INTFC*/**

WS IN/OUT

WS INTFC*/**

WS IN/OUT


2-7

2.2 System Performance

The system performance characteristics of the ( ) GHz 150 MB SDHdigital microwave radio system are listed in Table 2-2.

Table 2-2 System Performance (Typical Value)

A. IDU

Transmission Signal STM-1

Transmission Capacity 155.52 Mbps

Symbol Frequency• 32 QAM:• 128 QAM:

41.51808 MHz24.236883 MHz

Modulation 32/128 QAM

Demodulation Coherent detection

Forward Error Correction (FEC) Reed Solomon (RS)

Data Interface Electrical/Optical

SOH Termination RST mode

BB Loopback Near-end/Far-end

IF Loopback Local only

INTERFACE

Either of electrical or optical interface can be selected by selecting the 150M INTFC or OPT INTFC module.

(1) STM-1 (Electrical)

Type ITU-T G.703

Bit Rate 155.520 Mbit/s

Level 1 Vp-p (nominal)

Code Format Coded mark inversion (CMI)

Impedance 75 ohms, unbalanced

(2) STM-1 (Optical)

Type ITU-T G.957: S-1.1


Level Intra-office

Code Format Non return to zero (NRZ)

Wavelength 1310 nm


2-8

(3) STM-1(Optical: Mono-fiber type)


Transmit wavelength A type: 1310 nmB type: 1550 nm

Receive wavelength A type: 1550 nmB type: 1310 nm

Mean optical output power −7 dBm

Minimum Receive overload power

−3 dBm

Minimum receive sensitivity −23 dBm

Code Format Non return to zero (NRZ)

(4) Wayside (WS)(32 QAM system only/optional)

1 channel

Bit Rate 1.544 Mbps 2.048 Mbps

Input/Output Level 3.0 Vo-p (100 ohms) 2.37 Vo-p (75 ohms) or 3.0 Vo-p (120 ohms)

Code Format B8ZS or AMI HDB3

Impedance 100 ohms, balanced 75 ohms, unbalanced or 120 ohms, balanced

Note: Either can be selected.

(5) Digital Service Channel(DSC)

2 channels

Type V.11 contra/co-directional (Selectable)

Bit Rate 64 kbps

Impedance 100 ohms, balanced

(6) Voice Frequency (VF)

Service Channel 2 channels

Circuit 4 wire

Frequency band 0.3 to 3.4 kHz

Level −6 dBm (nominal)

Impedance 600 ohms, balanced

Table 2-2 System Performance (Typical Value) (Cont’d)


2-9

(7) House Keeping Alarms

Input 6 photo-couplers

Output 4 Form-C dry contact relays

(8) Network Management

Network Management System (NMS) Protocol

Simple network management protocol (SNMP)

Interface 10 Base-T or V.11



2-10



2-11/12


B. ODU

Frequency Band 6 GHz 7 GHz 8 GHz 11 GHz 13 GHz 15 GHz 18 GHz 23 GHz 26 GHz 38 GHz

Frequency Range 5.9 to 8.5 GHz 10.7 to 11.7 GHz 12.75 to 13.25 GHz 14.2 to 15.35 GHz 17.7 to 19.7 GHz 21.2 to 23.6 GHz 24.25 to 27.0 GHz 37.0 to 40.0 GHz

TX Output Power• 32 QAM :• 128 QAM :

+25 dBm

+25 dBm

+25 dBm

+16.5 dBm

+16.5 dBm

+16.5 dBm

+18 dBm+15 dBm

+18 dBm+15 dBm

+17 dBm+14 dBm

+13.5 dBm+10.5 dBm

Frequency Stability ± 6 ppm ± 6 ppm ± 6 ppm ± 6 ppm ± 6 ppm ± 6 ppm ± 6 ppm ± 6 ppm ± 6 ppm ± 6 ppm

Receiver Threshold

BER 10-6

• 32 QAM :• 128 QAM :

−68.0 dBm

−68.0 dBm

−68.0 dBm

−66.0 dBm

−66.0 dBm

−66.0 dBm

−76 dBm−67.5 dBm

−76 dBm−67.5 dBm

−75.5 dBm−67.0 dBm

−74.0 dBm−65.5 dBm

BER 10-3

• 32 QAM :• 128 QAM :

−69.0 dBm

−69.0 dBm

−69.0 dBm

−67.0 dBm

−67.0 dBm

−67.0 dBm

−77 dBm−68.5 dBm

−77 dBm−68.5 dBm

−76.5 dBm−68.0 dBm

−75.0 dBm−64.5 dBm

System Gain

BER 10-6

• 32 QAM :• 128 QAM :

93.0 dB

93.0 dB

93.0 dB

82.5 dB

82.5 dB

82.5 dB

94.0 dB82.5 dB

94.0 dB82.5 dB

92.5 dB81.0 dB

87.5 dB76.0 dB

BER 10-3

• 32 QAM :• 128 QAM :

94.0 dB

94.0 dB

94.0 dB

83.5 dB

83.5 dB

83.5 dB

95.0 dB83.5 dB

95.0 dB83.5 dB

93.5 dB82.0 dB

88.5 dB75.0 dB

ATPC/MTPC Range• 32 QAM :• 128 QAM :

−23 to 0 dB−20 to 0 dB

Additional Attenuation forSpan Equalization 5 dB


2-13


C. OVERALL

IDU-ODU InterconnectionCable

Single coaxial cable, 50 ohms (impedance)

Interconnection Cable (Type and Maximum Cable Length)

• 300 m (8D-FB coaxial cable or equivalent)• 350 m (10D-FB coaxial cable or equivalent)• 450 m (12D-FB coaxial cable or equivalent)

Primary Voltage (SafetyExtra-Low Voltage (SEL V))

−48 V DC (−36 to −60 V) or +48 V DC (+36 to +60 V)/−24 V DC (−20 to −60 V) or +24 V DC (+20 to +60 V), optional

Power Consumption (IDU+ODU) 80 W or less

Dimension

IDU 482 mm (W) × 44 mm (H) × 300 mm (D)

ODU• 6/7/8 GHz• 11-38 GHz

260 mm (W) × 410 mm (H) × 190 mm (D)240 mm (W) × 243 mm (H) × 124 mm (D)

Weight

IDU Approx. 5 kg (Including optional module)

ODU• 6/7/8 GHz• 11-38 GHz

Approx. 10 kgApprox. 5 kg

Temperature Range

Guaranteed Operation

IDU −5°C to +50°C

ODU −33°C to +50°C

Workable Operation

IDU −10°C to +55°C

ODU −40°C to +55°C

Transport and Storage

IDU −40°C to +70°C

ODU −40°C to +70°C

Relative Humidity Less than 90% at 50°C (Non-condensing)

Altitude Up to 4,000 m


2-14

2.3 RF Channel Plan

Radio frequencies for Pasolink+ 6 to 38 GHz are as follows:

• 6-8 GHz Band: 5.9 to 8.5 GHz

• 11 GHz Band: 10.7 to 11.7 GHz

• 13 GHz Band: 12.75 to 13.25 GHz

• 15 GHz Band: 14.2 to 15.35 GHz

• 18 GHz Band: 17.7 to 19.7 GHz

• 23 GHz Band: 21.2 to 23.6 GHz

• 26 GHz Band: 24.25 to 27.0 GHz

• 38 GHz Band: 37.0 to 40.0 GHz

For details, refer to the Appendix in Description section.

The actual TX frequency of the ODU should be within the TX radiofrequency band of the ODU and is entered using the local craft terminal(LCT). The corresponding RX frequency is automatically set after the TXfrequency is entered. For 6/7/8 GHz band ODU, the frequency settingshould be the same as that written on the ODU label. For 11-38 GHz bandODU, transmitting frequency for 32 QAM system should be enteredbetween “Start” frequency + 21 MHz and “Stop” frequency − 21 MHzdisplayed on LCT, and 128 QAM system should be entered between“Start” frequency + 12 MHz and “Stop” frequency − 12 MHz displayed onLCT.

2.4 Alarm and Control

The alarm and control system is shown in Fig. 2-3. The functions of thealarm and control circuit are as follows:

• Alarm indication and reporting• Performance monitoring/metering data reporting• Automatic laser shutdown control (OPT INTFC module)• Automatic transmitter power control• Loopback control• Network Management (Optional)• Optional Interface Card


2-15

2.4.1 Alarm Indication and Reporting

Alarm indication and reporting functions are provided with the IDU.Summary alarm indicators using LED’s are provided for the ODU andIDU, separately. ODU alarms detected by the alarm detection circuit inthe ODU are sent to the CTRL module in the IDU. This causes the ODUalarm indicator on the IDU front panel to turn on. Similarly, any IDUrelated alarms that are detected will cause the IDU alarm indicator on theIDU front panel to turn on. External reporting of alarms is also providedthrough closed relay contacts accessible via the front panel interface (seeTable 2-3).

2.4.2 Performance Monitoring/Metering Data Reporting

To monitor the transmission quality, the equipment is provided with theperformance monitoring and the metering functions. The CTRL module,polls the different modules and gathers PM/Metering information. A “*”mark displayed in the PM results screen indicates that the value is illegal.A “#” mark is displayed if the PM results are obtained while the equipmentis in maintenance mode. When the equipment clock setting is changed orthe power is turned on/off, the PM value is judged to be invalid. Themonitoring items are as follows:

• Out of Frame Second (OFS)

• Background Block Error (BBE)

• Errored Seconds (ES)

• Severely Errored Seconds (SES)

• Unavailable Second (UAS)

• TX POWER

• RX LEVEL

• ODU PS MON

• Bit Error Rate (BER)


2-16



2-17/18

Fig. 2-3 Alarm and Control Block Diagram

MD CPUALM

9 (COM)

25 (COM)13 (NO)

RL8

RL1

RL2

RL3

RL4

RL5

RL6

RL7

23 (NO)

24 (NC)11 (COM)

22 (NC)

12 (NC)

150M INTFC/OPT INTFC

MODEM

STM-1 IN

STM-1 OUT ALM

RL11

RL9

RL10

CONT

TX PWR ALMTX INPUT ALM

RX LEVEL ALMAPC ALM

RF CKT

ODUIDU

MODEM

BER ALM

DEM ALM

MOD ALM

SD (DMR)

E-BER (DMR)

SD (MUX)

E-BER (MUX)

MAIN INTFC LOS (DMR)

MAIN INTFC LOF (MUX)

MAIN INTFC LOS (MUX)

PNMT

CTRL

PS ALM

SUB INTFC LOS

DC-DCCONV

WS INTFC*/

LANCARD*

ALM

SEL V

PWR

ODU

IDU

LCTEOW1EOW2

NE1NE2

PNMS V11PNMS LAN

21 (NO)

4 (COM)

20 (COM)8 (NO)

6 (NO)

5 (NC)18 (COM)

16 (NC)

7 (NC)

17 (NO)

10 (COM)

15 (COM)3 (NO)

12 (NO)

11 (NC)25 (COM)

23 (NC)

2 (NC)

24 (NO)

22 (COM)9 (NO)

21 (NO)

20 (NC)7 (COM)

8 (NC)

PS ALM

MAINT

CPU ALM

MAIN INTFC

ODUINTFC

ODU ALM**

IDU ALM**

High BER ALM**

LOS**

HK4 ALM**

HK3 ALM**

HK2 ALM**

HK1 ALM**

Notes: 1. The WS INTFC module applies to the 32 QAMsystem.

2. * Optional.3. ** These are factory setting (default setting).

These alarm items can be set by the LCT.MAINT

INTERFACETERMINAL

ALM

INTERFACETERMINALALM/AUX

MAIN INTFC LOF (DMR)


2-19/20

Table 2-3 Alarm Indication and Reporting

Equipment Alarm InitiatedAlarm

Initiating Module

Alarm ConditionLED Indication on

Alarm Initiating Module

LED Indication on IDU Remote Alarm Reporting

IDU

MAIN INTFC LOS (MUX)

150M/OPT INTFC

Input STM-1 signal is lost (from MUX) ALM(150M/OPT INTFC) IDU ALM IDU ALM

STM-1 LOS

MAIN INTFC LOF (MUX)

150M/OPT INTFC

Frame synchronization of input STM-1 signal (from MUX) is lost. ALM(150M/OPT INTFC) IDU ALM IDU ALM

E-BER (MUX) 150M/OPT INTFC

BER is worse than preset value (10-3 to 10-5, selectable) ALM(150M/OPT INTFC) IDU ALM IDU ALM

SD (MUX) 150M/OPT INTFC

BER is worse than preset value (10-5 to 10-9, selectable) ALM(150M/OPT INTFC) IDU ALM IDU ALM

MAIN INTFC LOS (DMR)

150M/OPT INTFC

Input STM-1 signal is lost (from Radio) ALM(150M/OPT INTFC) IDU ALM IDU ALM

MAIN INTFC LOF (DMR)

150M/OPT INTFC

Frame synchronization input STM-1 signal (from Radio) is lost ALM(150M/OPT INTFC) IDU ALM IDU ALM

E-BER (DMR) 150M/OPT INTFC

BER is worse than preset value of radio (10-3 to 10-5, selectable) ALM(150M/OPT INTFC) IDU ALM IDU ALM

SD (DMR) 150M/OPT INTFC

BER is worse than preset value of radio (10-5 to 10-9, selectable) ALM(150M/OPT INTFC) IDU ALM IDU ALM

MAIN INTFC 150M/OPT INTFC

150M INTFC/OPT INTFC module failure ALM(150M/OPT INTFC) IDU ALM IDU ALM

MAIN INTFC ALM

SUB INTFC WS INTFC/LAN CARD

WS INTFC/LAN CARD module failure ALM(WS INTFC/LAN CARD)

IDU ALM IDU ALMSUB INTFC ALM

MD CPU ALM MODEM Communication between modules failure IDU ALM IDU ALM

MOD ALM MODEM Modulator failure IDU ALM IDU ALMMOD ALM

DEM ALM MODEM Demodulator failure and input IF signal is lost IDU ALM IDU ALMDEM ALM

High BER ALM MODEM BER is worse than preset value (10-4 to 10-6, seletable) IDU ALM IDU ALMBER ALM

MODEM MODEM MODEM failure IDU ALM IDU ALM

PS DC-DC CONV

DC-DC CONV failure IDU ALM IDU ALMPS ALM


2-21/22

ODU

TX PWR ALM RF CKT Transmit RF power increases/decreases approx. 3 dB from normal ODU ALM ODU ALMTX PWR ALM

TX INPUT ALM RF CKT TX IF input signal from the IDU is lost ODU ALM ODU ALMTX IN ALM

RX LEVEL ALM RF CKT Receiver input level decreases below squelch level as shown below• 32 QAM: −81 dBm• 128 QAM:−72 dBm

ODU ALM ODU ALMRX IN ALM

APC ALM SYNTH/RF CKT

Local oscillator is unlocked ODU ALM ODU ALMAPC ALM

CABLE ALM Communication between the ODU and IDU is lost ODU ALM ODU ALMCABLE ALM

IDU/ODU

MAINT

The equipment is in maintenance mode. In this mode, the following control can be performed.• ATPC manual control • Loopback• TX mute • ALS manual restart• CW

MAINT MAINT

Table 2-3 Alarm Indication and Reporting (Cont’d)

Equipment Alarm InitiatedAlarm

Initiating Module

Alarm ConditionLED Indication on

Alarm Initiating Module

LED Indication on IDU Remote Alarm Reporting


2-23

2.4.3 Automatic Laser Shutdown Control (OPT INTFC Module)

The IDU is provided with the automatic laser shutdown (ALS) functionthat can be enabled or disabled. If the ALS function is enabled, the laseroutput is periodically turned ON and OFF when the optical cable carryingthe STM-1 signal is disconnected inadvertently, or internationally duringmaintenance. If the ALS function is disabled, the laser output is alwaysON even if the optical cable is disconnected.

Fig. 2-4 shows a block diagram of the ALS function. If a fault occurs atpoint A and the absence of the optical input signal in the RX 2 lasts for 550±50 msec (STM-1 LOS alarm condition), the optical signal bound for theRX 1 (MUX equipment) from the TX 2 (OPT INTFC module) isinterrupted by a control signal generated inside the OPT INTFC module.The MUX equipment detects the loss of signal at RX1 and the ALSfunction in the MUX will, subsequently, turn off the laser output of TX1.When the fault at point A is cleared the system can be restored bycontrolling the laser output of TX2 through one of the following modes:

• Automatic control

• Manual restart (2 sec.) control

• Manual restart (90 sec.) control

(a) Automatic ControlWhen 60, 180 or 300 (selectable) sec. have elapsed after theoptical signal entering RX 2 is cut off, the IDU emits laser signalfrom TX 2 to RX 1 for 2 sec. This would then cause the laseroutput of TX1 to turn on. If, at this time, the fault at point A hasbeen cleared, the ALS function will be released and the operationwill return to normal.

(b) Manual Restart (2 sec.) ControlUpon receiving a command signal for manual restart from the LCTor the pasolink network management terminal (PNMT) while theoptical input signal to the RX 2 is off, the IDU emits the lasersignal from the TX 2 to the RX 1 for 2 ±0.25 sec. This would thencause the laser output of TX1 to turn on. If, at this time, the fault atpoint A has been cleared, the ALS function will be released andthe operation will return to normal (it returns to automaticcondition).


2-24

(c) Manual Restart (90 sec.) ControlUpon receiving a command signal for manual restart for test fromthe LCT or the PNMT while the optical input signal to the RX 2 isoff, the IDU emits the laser signal from the TX 2 to the RX 1 for 90±10 sec. This would then cause the laser output of TX1 to turn on.If, at this time, the fault at point A has been recovered, the ALSfunction will be released and the operation will return to normal (itreturns to automatic condition).

Fig. 2-4 ALS System Functional Block Diagram

2.4.4 Automatic Transmitter Power Control

The automatic transmit power control (ATPC) function automaticallyvaries the TX output power according to path conditions. In the 6 to 38GHz band, fading exerts heavy influences on propagation, causing thereceive signal level at the opposite station to vary. The ATPC functionoperates by controlling the transmit output power of the opposite stationaccording to the variation of the received signal level at the local station.ATPC provides the following advantages:

• Improvement in up fading characteristics• Improvement in residual BER characteristics• Reduction of interference to intra system• Reduction of interference to inter system

MUX EQUIP-MENT OPT INTFC

TX1

RX1

AO/E

RLOS 550 ± 50 ms TIMER

O/E

RX2

TX2CONT

LCT OR PNMT

DATA BUS

60/180/300 sec.DELAY

2±0.25STX ON TIMER

CTRL

ALS CONTENABLE/DISABLE

2STX ON TIMER

90±10STX ON TIMER

SB/DATA BUS

CLEAR


2-25

A functional block diagram of the ATPC operation is shown in Fig.2-5. ATPC improves the BER characteristics under adverse changesin climatic conditions and reduces the possibility of interference. Toimplement ATPC, the receiving level (RX IN LEV) is detected bythe receiver (RX) and passed on to the CPU in the CTRL circuit ofthe MODEM module. The CPU then determines whether thetransmit output power needs to be controlled. This is based on thetransmit output power, the minimum and maximum values of theoutput control range, and the receiving threshold level that werepriorly specified using the LCT or PNMT.

A control signal (POWER CONT), whose function is to maintainthe RX signal level by lowering or raising the TX output power ofthe opposite station, is generated by the MODEM module throughthe CPU circuit. This control signal is based on the result ofcomparison between the current receiver input level and the presetreceiving threshold level. Using RFCOH bits, this control signal issent to the opposite station to control its transmit output power.

At the opposite station, this control signal is detected by theMODEM module. The MODEM module, in accordance with thiscontrol signal, produces a control that will either raise, lower ormaintain the current TX output power.

Fig. 2-5 ATPC, Functional BLock Diagram

TX

TX

RX

RX

POWER CONT

REMOTE

RX IN LEV

REMOTECTRL CTRL

RFCOH RFCOH

TRANSMITTING STATION RECEIVING STATION

MODEM

MODEMMODEM

MODEM


2-26

The ATPC Control System of Pasolink+ transmits the information on thereceiving level to the opposite station and controls the transmission levelof its own station in accordance with the receiving level of the oppositestation. Transmission level control can be used not only for setting thesame operation (ATPC-ATPC) between own station and opposite stationbut also for operation in combination of stations with different operation(MTPC-ATPC, ATPC-MTPC) between own station and opposite station.The station set in MTPC mode is not controlled by the information fromopposite station but is fixed in its transmitting output level.

Even if the station is set in the MTPC mode, the opposite station is likelyto be set in the ATPC mode. Therefore, setting the RX Threshold(Receiving threshold level) is required for controlling the transmissionlevel of the opposite station. Between the stations that are respectively setin the MTPC mode, however, the setting is disabled.

The following is an example of operation between stations set in MTPC-ATPC mode.

The transmitting level of station B is controlled so that the receiving levelof station A in the above figure reaches the RX Threshold set level (−50dBm) set in station A. This method is used in station A for reducing thelevel of interference to other route. As station A is set in the MTPC mode,the transmitting level is kept unchanged.

Then an example of using MTPC-ATPC is shown below. As shown in thefigure, in the master station communicating with many substations, wavesgather from substations possibly causing interferences. Therefore,substations must be set in the ATPC mode to minimize the diffraction(interference) to other routes while reducing the receiving levels fromindividual substations to the minimum. In substations, there is littlepossibility of occurring interferences; therefore, the master station is set inthe MTPC mode to permit transmission at a constant level.

STATION A STATION B

PASOLINK+PASOLINK+

ATPCMTPC(RX Threshold: −50 dBm)


2-27

(MTPC)(ATPC)

SUBSTATION 2(ATPC)

SUBSTATION 5

(ATPC)SUBSTATION 1

(ATPC)SUBSTATION 3

(ATPC)SUBSTATION 4

MASTERSTATION

B

A

BA : Diffraction to other route.


2-28

2.4.5 Loopback Control

The loopback function is provided for checking the system quality duringmaintenance and/or to quickly isolate a fault location. The control isperformed by the LCT, the PNMT or the PNMS.

Provided here is the control of the:

• STM-1 near-end loopback (STM-1 LB1) at the 150M INTFC/OPTINTFC module ((a) in Fig. 2-6).

• STM-1 far-end loopback (STM-1 LB2) at the 150M INTFC/OPTINTFC module ((b) in Fig. 2-6).

• IF loopback (IF-LB) at the MODEM module ((c) in Fig. 2-6).

Note: While the IF loopback is in execution, monitoring of theopposite and the subsequent stations are disabled on thePNMS and PNMT.

Fig. 2-6 Loopback Location

STM-1IN

IDU

OWN STATION OPPOSITE STATION

DEM

TX

RXSTM-1OUT

(a) (c)


MODEM

ODU

STM-1 IN

IDU

DEM

TX MOD

RXRSTDROP/INSERT

STM-1OUT


MODEM

ODU

MODC/NCONV

N/CCONV

C/NCONV

N/CCONV

(b)

CTRL

LCT/PNMT

RSTDROP/INSERT

RSTDROP/INSERT

RSTDROP/INSERT

Note: Reverse direction is the same as above.


2-29

2.4.6 Network Management (Optional)

The Network Management System (NMS) configuration is shown in Fig.2-7. The pasolink network management system (PNMS) is connected tothe PNMS V.11/LAN connector of the IDU located at the designatedmaintenance center while the pasolink network management terminal(PNMT) is connected to the PNMT connector on the IDU of remotestations. The PNMT/PNMS provides monitoring and control of the actualmicrowave link status and its associated Pasolink equipment. Statusinformation form and control signals to remote stations are transmittedusing RFCOH.

For detailed information, refer to the related PNMS or PNMT manual.

Fig. 2-7 Network Management System

PNMS PNMT

PASOLINK

PNMS: Pasolink Network Management SystemPNMT : Pasolink Network Management Terminal

RFCOH

PNMTPNMS V.11/LANCONNECTOR CONNECTOR

+PASOLINK +


2-30

2.4.7 Optional Interface Card

As for optional interface card, the WS INTFC and the LAN Card areprepared. By mounting WS INTFC*/LAN Card in the IDU of the system,the auxiliary transmission way can be used, and a network with a remotestation can be constituted as shown in Fig. 2-8.

Note: * Applies only to 32 QAM system.

Fig. 2-8 Example of Use

(a) Description of WS INTFC and LAN Card

WS INTFCThe WS INTFC can be offered the auxiliary transmission way whichused 2.048 Mbps/1.544 Mbps of RFCOH.There are three available interface types:

• 2.048 Mbps 75 ohms unbalanced• 2.048 Mbps 120 ohms balanced• 1.544 Mbps 100 ohms balanced

LAN CardThe LAN Card can be offered the auxiliary transmission way for anethernet which used following signals:

• 32 QAM system RFCOH of 2.048 Mbps• 128 QAM system DSC or RSOH (E1/F1) of 64 K

The signal should be selected in the “OH Assignment” ofProvisioning.

NETWORK

Router

IDU

PC PC

IDU

ODU ODU

(LAN CARD) (LAN CARD)


2-31

LAN Card has a bridge function, and the number of memory of amedia access control (MAC) address is updated every 5 minutes in10.000 address.

(b) Protection SwitchingThe block diagram of protection switching of the auxiliarytransmission may using WS INTFC or LAN Card is shown below.

Protection switching is performed at receiving side only. When theFASYNC (radio frame) or High BER alarm of receiving side isdetected, the signal is protected by the receive switch (RX SW). Itdefers from the conditions of switching of the main signal. Forprotection switching, hit may occur.

2.5 Power Supply

The power supply system block diagram is shown in Fig. 2-9. The DC-DCCONV module on the IDU produces regulated +5.3 and +3.6 V DC powerfrom ±48 V/±24 V* DC input power for the component modules on theIDU. Also, this module produces regulated −43 V DC power from DCinput power for the ODU.

Note: * Optional.

The power to the ODU is supplied through the coaxial cable which is alsoused for the IF and other signals. The DC-DC CONV module of the ODUproduces +7/+9/+10 and −15 V DC power for the component modulesfrom the −43 V DC power supplied from the IDU.

HYB RX SW OUTIN

RX SideTX Side

No.2

No.1


2-3232 pages

Fig. 2-9 Power Supply System Block Diagram

DC

ODU INTFC

150M INTFC, OPT INTFC, MODEM, LAN CARD,CTRL, WS INTFC

INPUT

(1/3)(2/4)

DC-DC CONV

IF IN

IDU ODU

DC-DCCONV

SEP/COMBFIL

IF OUT

SEL V IF OUT

+5.3 V+3.6 V

−43 V−48 V/+48 V/−24 V/+24 V

IF INSEP/

COMBFIL

+Vcc

ROI-S03832 SUBSYSTEM DESCRIPTION

3-1

3. SUBSYSTEM DESCRIPTION

Described herein are composition and functional operation of each moduleof the IDU and the ODU.

INDOOR UNIT

3.1 Composition

The equipment is composed of appropriate plug-in modules as listed inTable 3-1. The component modules are arranged on a shelf as shown inFig. 3-1.

Note: *Location numbers are referred to those in Fig. 3-1.

Table 3-1 IDU Component Module

Location No.

Equipment/Module Name

SystemRemarks

32 QAM 128 QAM

1MDP-150MB5T-4 G7910A

MDP-150MB7T-2 G7911A

2

WS INTFC G7905A/B/C Optional.A type: For 2.048 Mbps, 75

ohms unbalanced.B type: For 2.048 Mbps,

120 ohms balanced.C type: For 1.544 Mbps,

100 ohms balanced.

LAN CARD G7906A G7906A Optional.

3

150M INTFC G7897A G7897A

OPT INTFCG7898A G7898A

G7899A/B G7899A/B Mono-fiber type

SUBSYSTEM DESCRIPTION ROI-S03832

3-2

Fig. 3-1 IDU Component Module Arrangement

MODEM

FRONT BOARD

FRONT VIEW

(TOP LAYER)

Note: Location numbers are referred to those in Table 3-1.

TOP VIEW

TOP VIEW(BOTTOM LAYER)

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

PWR

MAINT

2 3

1

ODUINTFC

32

DC-DCCONV

FRONT

CTRL

FRONT

ODU


3-3

3.2 Functional Operation

A block and level diagram of the IDU is shown in Fig. 3-2. Functionaloperations of the IDU are described separately for the modulator sectionand demodulator section.

Fig. 3-2 IDU Block and Level Diagram (1/2)

MODEM

PNMT

STM-1

STM-1

IN

OUT

ODUINTFC

150MINTFC/

OPTINTFC

LCT

CTRL Notes:1. * Optional.2. ** Applies only to 32 QAM

system.

EOW

EOW1EOW2

NE1NE2

PNMS V11

PNMS LAN

IF IN/OUT

10 BASE-TLAN

CARD*

WS INTRF*/**

WS INWS OUT

1 2

34 5

6 7

8

910

1112

13

14

15

16


3-4

Notes: 1.* Applies to G7898A OPT INTFC module.2.** Applies to G7899 OPT INTFC module

Note:Optical signal 1 and 4 are multiplexed.3.*** Applies to 150M INTFC module.4.**** The level is automatically controlled to compensate the

cable loss between IDU and ODU.5. The recommended cable, 8D-FB, has 15 dB (at 140

MHz)/26 dB (at 340 MHz) loss at the maximum length of300 meters (1,000 feet).

Fig. 3-2 IDU Block and Level Diagram (2/2)

POSITION 1 2 3 4DATA SPEED/FREQUENCY

155.520 Mbps 340 MHz 140 MHz 155.520 Mbps

LEVEL –8 to –28 dBm*/–3 to –23 dBm**/1.0 Vp-p***

–2 to –29 dBm****

–15 to –55 dBm****

–8 to –15 dBm*/–7 dBm**/1.0 Vp-p***

IMPEDANCE ∗/ ∗∗/ 75 ohms,unbalanced***

50 ohms, unbalanced ∗/ ∗∗/ 75 ohms,unbalanced***

POSITION 5 6, 7 8DATA SPEED/FREQUENCY

0.3 to 3.4 kHz 1.544 Mbps/2.048 Mbps 10 BASE-T

LEVEL –6 dBm 3.0 Vo-p/2.37 Vo-p/3.0 Vo-p IMPEDANCE 600 ohms 100 ohms, balanced/ 75 ohms,

unbalanced/ 120 ohms, balanced


RS-232C RS-232C 0.3 to 3.4 kHz 0.3 to 3.4 kHz

LEVEL –6 dBm –6 dBmIMPEDANCE 600 ohms 600 ohms


RS-485 RS-485 V11 10 BASE-T

LEVEL IMPEDANCE 100 ohms 100 ohms 100 ohms


3-5

3.2.1 Modulator Section

Electrical InterfaceThe STM-1 signal received from terminal equipment enters the STM-1interface section of the 150M INTFC module. The STM-1 interfacesection first extracts the clock component from the STM-1 data that is inCoded Mark Inversion (CMI) code, and then the CMI-coded data signal isconverted to Non-Return-to-Zero (NRZ) code using the extracted clocksignal. After STM-1 frame synchronization is established in the framesynchronization section, the RSOH bytes are extracted and the B1 parityerrors are detected for performance monitoring. Then, the B1 parity isrecalculated for performance monitoring of the radio link. This B1 parityis sent to the MODEM module for insertion in the RSOH portion of theSTM-1 frame.

Optical InterfaceThe optical STM-1 signal received from terminal equipment enters theSTM-1 interface section of the OPT INTFC module. The STM-1 interfacesection converts the optical signal to an electrical signal and extracts theclock signal from the data stream. After STM-1 frame synchronization isestablished in the frame synchronization section, the RSOH bytes areextracted and the B1 parity errors are detected for performancemonitoring. Then, the B1 parity is recalculated for performancemonitoring of the radio link. This B1 parity is sent to the MODEMmodule for insertion in the RSOH portion of the STM-1 frame.

Input data signal from 150M INTFC/OPT INTFC module is speedconverted to give room for the redundant bits such as radio framecomplementary overhead (RFCOH) and forward error correction (FEC),which are to be added in the next stages. Then the RFCOH bits areinserted to the pre allocated slots. RFCOH is a signal multiplexed withOW, 64k SC and SV for monitor/control. Error correction FEC bits for theradio link are inserted, and coded, then string-converted to obtain datastream required for modulation. Data signal string-modulated willmodulate the 340 MHz IF signal, then fed to the ODU INTFC module.

340 MHz IF signal received from MODEM module is equalized tocompensate for the distortion in the IDU-ODU cable and then multiplexedwith ODU driving power supply, control signal etc., at MPX section,before feeding to the ODU.

3.2.2 Demodulator Section

The 140 MHz IF signal and the control signal that are contained in thecomposite signal received from the ODU are separated at the MPX sectionof the ODU INTFC module. After correcting for characteristicdeterioration and signal level degradation that may have been introducedby the cable connecting the IDU and ODU, the 140 MHz IF signal is fed tothe MODEM module.


3-6

The 140 MHz IF signal from the ODU INTFC module is demodulated atthe demodulator section, then regenerates the baseband signal composedof the radio frame. After the radio frame synchronization is established,detection and correction of errors that may have occurred at the radio linkare performed in the error correction section. The STM-1 signal isregenerated after separating the RFCOH bits and then fed to the 150MINTFC/OPT INTFC module.

Electrical InterfaceAfter STM-1 frame synchronization is established in the data signal fromthe MODEM module, the RSOH byte is extracted and the B1 parity errorfor performance monitoring of the radio link is detected. Then, the B1parity is re-calculated and RSOH bytes are inserted. At the STM-1interface section, the NRZ code is converted to CMI code and then fed tothe terminal equipment.

Optical InterfaceAfter STM-1 frame synchronization is established in the data signal fromthe MODEM module, the RSOH byte is extracted and the B1 parity errorfor performance monitoring of the radio link is detected. Then, the B1parity is re-calculated and the RSOH bytes are inserted. At the STM-1interface section, the electrical signal is converted to on optical signal andthen fed to the terminal equipment.

OUTDOOR UNIT

The composition and functional operation of the ODU are described in thischapter.

3.3 Composition

The ODU is classified into high grade (HG) and super high grade (SHG)types. HG is used for 32 QAM system and SHG for 32/128 QAM system.The label attached to the side of ODU indicates ODU type (see Fig. 3-3).

• TRP-6G-1AA (SHG)• TRP-7G-1AA (SHG)• TRP-8G-1AA (SHG)• TRP-11G-1AA (SHG)• TRP-13G-1AA (SHG)• TRP-15G-1AA (SHG)• TRP-18G-1AA (HG) or (SHG)• TRP-23G-1AA (HG) or (SHG)• TRP-26G-1AA (HG) or (SHG)• TRP-38G-1AA (HG) or (SHG)

The component modules are arranged on the shelf as shown in Fig. 3-4.


3-7

Fig. 3-3 ODU type and Frequency Indication Label

6/7/8 GHz Band ODU

11 - 38 GHz Band ODU

0678 !PASOLINK

SUB Band

SERIAL No. DATEWEIGHT 10kg/–43V 0.9A

( )

NEC Corporation TOKYO JAPAN MADE IN JAPAN

TXhigh/low

TRP-( )G-1AAOUTDOOR UNIT (SHG)

+

TX frequency

PASOLINK

shift frequencySERIAL No. DATE ,

WEIGHT 4.5kg/–43V 0.5A

( )


TXhigh/low

TRP-( )G-1AAOUTDOOR UNIT (HG)

+

MHz SUB band

0678 !


3-8

Fig. 3-4 ODU Component Module Arrangement (1/2)

SYNTH

DC-DC

DUP

RF CKT

(CTRL AND SYNTH REMOVED)

CTRL

CONV

6/7/8 GHz ODU

11/13/15 GHz ODU

IFLFG RX LEVMON

RF CKT

CONT

DC-DCCONV

SYNTH

INSIDE OF ODU


3-9

Fig. 3-4 ODU Component Module Arrangement (2/2)

3.4 Functional Operation

A block and level diagram of the ODU is shown in Fig. 3-5. Functionaloperations of the ODU are described separately for the transmitter sectionand receiver section.

3.4.1 Transmitter Section

A 340 MHz IF signal which is composed of the DC components, andcontrol signal, etc., from the IDU is separated by the multiplexer (MPX)circuit. The 340 MHz IF signal received from the IDU is converted to anRF signal using a local signal generated by a synthesized local oscillator.This RF signal is then sent to the antenna through the BPF whicheliminates undesired components generated in the IF-RF conversion.

3.4.2 Receiver Section

First the RF signal received through the antenna is amplified to therequired level by the RF amplifier. Afterward the signal is converted tothe 140 MHz IF signal by mixing with a local signal generated by asynthesized local oscillator. Then the 140 MHz IF signal is sent to the IDUthrough the MPX circuit whom it is combined with the alarm/controlsignal, etc.

IFLFG RX LEVMON

INSIDE OF ODU

IF FG RX LEVMON

18/23/26/38 GHz ODU

RF CKT

CONT

DC-DCCONV

SYNTH


3-1010 pages

Note: * When the standard receive signal level is received.

Fig. 3-5 ODU, Block and Level Diagram

RF CKT

12

DUP

SYNTH

RFIN/OUT

IF IN/OUT(TO/FROM IDU)

CONT

Position 1 2

NOMINALLEVEL

IF IN: −29 dBmIF OUT:

−15 dBm*

32 QAM 128 QAMRF OUT:

+18 dBm (18 GHz)+18 dBm (23 GHz)+17 dBm (26 GHz)+13.5 dBm (38 GHz)

RF IN: −30 dBm

RF OUT:+25 dBm (6/7/8 GHz)+16.5 dBm (11/13/15 GHz)+15 dBm (18 GHz)+15 dBm (23 GHz)+14 dBm (26 GHz)+10.5 dBm (38 GHz)

RF IN: −30 dBmFREQUENCY IF IN: 340 MHz

IF OUT: 140 MHzAssigned Radio Frequency

IMPEDANCE 50 ohms 50 ohms

ROI-S04077-052E APPENDIX011225

A-1

APPENDIXRADIO FREQUENCY PLAN FOR PASOLINK

This Appendix provides the radio frequencies (6 to 38 GHz) used by eachfrequency band as follows:

• 6 GHz Band Table A-1 (ITU-R F.383-6)• TX/RX frequency spacing : 252.04 MHz

• 6 GHz Band Table A-2 (ITU-R F.384-7)• TX/RX frequency spacing : 340 MHz

• 6 GHz Band Table A-3 (OIRT)• TX/RX frequency spacing : 266 MHz

• 6 GHz Band Table A-4 (MEXICO)• TX/RX frequency spacing : 252.04 MHz

• 7 GHz Band Table A-5 (UK)• TX/RX frequency spacing : 245 MHz


• 7 GHz Band Table A-7• TX/RX frequency spacing : 154 MHz

• 7 GHz Band Table A-8 (ITU-R 385-6 Annex 1)• TX/RX frequency spacing : 154 MHz

• 7 GHz Band Table A-9 (RUSSIAN)• TX/RX frequency spacing : 161 MHz

• 7 GHz Band Table A-10 (ITU-R F.385-6 Annex 3-1)• TX/RX frequency spacing : 196 MHz


• 8 GHz Band Table A-12 (ITU-R F.386-6)• TX/RX frequency spacing : 151.614 MHz

• 8 GHz Band Table A-13 (ITU-R F.386-6 Annex 1)• TX/RX frequency spacing : 311.32 MHz

• 8 GHz Band Table A-14 (ITU-R F.386-6 Annex 2-1)• TX/RX frequency spacing : 294.44 MHz

• 8 GHz Band Table A-15 (ITU-R F.386-6 Annex 2-2)• TX/RX frequency spacing : 305.56 MHz


+

APPENDIX ROI-S04077

A-2


• 8 GHz Band Table A-18 (ITU-R F.386-6 Annex 4)• TX/RX frequency spacing : 266 MHz

• 8 GHz Band Table A-19 (NORWAY)• TX/RX frequency spacing : 154 MHz





• 15 GHz Band Table A-24 (CEPT/ERC/REC 12-07E)• TX/RX frequency spacing : 728 MHz



• 18 GHz Band Table A-27 (PORTARIA 1288)• TX/RX frequency spacing : 1560 MHz


• 23 GHz Band Table A-29 (ITU-R F.637-3 Annex 3&4)• TX/RX frequency spacing : 1008 MHz


• 23 GHz Band Table A-31 (ITU-R F.637-3 Annex 1) • TX/RX frequency spacing : 1232 MHz

• 23 GHz Band Table A-32 (PORTARIA 83) • TX/RX frequency spacing : 1232 MHz


• 26 GHz Band Table A-34 (ITU-R F.748-3 Annex 1)• TX/RX frequency spacing : 1123.5 MHz



ROI-S04077 APPENDIX

A-3

• 38 GHz Band Table A-37 (ANATEL)• TX/RX frequency spacing : 1260 MHz

Note: TX/RX frequency spacing : 252.04 MHz

Note: TX/RX frequency spacing : 340 MHz

Table A-1 6 GHz Band, Relationship of Sub-band and Radio Frequency ITU-R F.383-6

ODU Type Sub-Band TX Radio Frequency Band Remarks

G8222A/B

A 5930.375 to 5974.850 MHz

Lower BandB 5989.675 to 6034.150 MHz

C 6048.975 to 6093.450 MHz

D 6108.275 to 6152.750 MHz

A 6182.415 to 6226.890 MHz

Upper BandB 6241.715 to 6286.190 MHz

C 6301.015 to 6345.490 MHz

D 6360.315 to 6404.790 MHz



G8222C/D

A 6440 to 6500 MHz

Lower BandB 6520 to 6580 MHz

C 6600 to 6660 MHz

D 6680 to 6740 MHz

A 6780 to 6840 MHz

Upper BandB 6860 to 6920 MHz

C 6940 to 7000 MHz

D 7020 to 7080 MHz

APPENDIX ROI-S04077

A-4



Table A-3 6 GHz Band, Relationship of Sub-band and Radio Frequency OIRT


G8222E/F

A 5675 to 5717 MHz

Lower BandB 5731 to 5773 MHz

C 5787 to 5829 MHz

D 5843 to 5885 MHz

A 5941 to 5983 MHz

Upper BandB 5997 to 6039 MHz

C 6053 to 6095 MHz

D 6109 to 6151 MHz

Table A-4 6 GHz Band, Relationship of Sub-band and Radio Frequency MEXICO


G8222G/H

A 5935.317 to 5984.733 MHz


C 6053.916 to 6103.333 MHz

D 6113.216 to 6162.633 MHz

A 6187.357 to 6236.773 MHz


C 6305.840 to 6355.373 MHz

D 6365.256 to 6414.673 MHz

ROI-S04077 APPENDIX

A-5



Table A-5 7 GHz Band, Relationship of Sub-band and Radio Frequency UK


G8223A/B

A 7431.5 to 7484.0 MHz


C 7543.5 to 7596.0 MHz

D 7599.5 to 7652.0 MHz

A 7676.5 to 7729.0 MHz


C 7788.5 to 7841.0 MHz

D 7844.5 to 7897.0 MHz



G8223C/D

A 7124.5 to 7191.0 MHzLower Band

B 7194.5 to 7261.0 MHz

A 7285.5 to 7352.0 MHzUpper Band

B 7355.5 to 7422.0 MHz

G8223E/F


B 7494.5 to 7561.0 MHz


B 7655.5 to 7722.0 MHz

G8223G/H


B 7319.5 to 7386.0 MHz


B 7480.5 to 7547.0 MHz

G8223J/K


B 7619.5 to 7686.0 MHz


B 7780.5 to 7847.0 MHz

APPENDIX ROI-S04077

A-6




Table A-7 7 GHz Band, Relationship of Sub-band and Radio Frequency


G8223L/M

A 7128 to 7184 MHzLower Band

B 7198 to 7254 MHz

A 7282 to 7338 MHzUpper Band

B 7352 to 7408 MHz

Table A-8 7 GHz Band, Relationship of Sub-band and Radio Frequency ITU-R 385-6 Annex 1


G8223N/P


B 7498 to 7554 MHz


B 7652 to 7708 MHz

Table A-9 7 GHz Band, Relationship of Sub-band and Radio Frequency RUSSIAN


G8223R/S


B 7323.00 to 7392.75 MHz


B 7484.00 to 7553.75 MHz

ROI-S04077 APPENDIX

A-7




Table A-10 7 GHz Band, Relationship of Sub-band andRadio Frequency ITU-R F.385-6 Annex 3-1


G8223T/U


B 7177 to 7233 MHz


B 7373 to 7429 MHz



G8223V/W


B 7513 to 7569 MHz


B 7681 to 7737 MHz



G8224A/B


B 8274.189 to 8338.330 MHz


B 8425.803 to 8489.944 MHz

APPENDIX ROI-S04077

A-8



Table A-13 8 GHz Band, Relationship of Sub-band andRadio Frequency ITU-R F.386-6 Annex 1


G8224C/D

A 7732.875 to 7777.350 MHz


C 7851.475 to 7895.950 MHz

D 7910.775 to 7955.250 MHz

A 8044.195 to 8088.670 MHz


C 8162.795 to 8207.270 MHz

D 8222.095 to 8266.570 MHz



G8224E/F

A 7745.37 to 7786.11 MHz


C 7867.59 to 7908.33 MHz

D 7928.70 to 7969.44 MHz

A 8050.93 to 8091.67 MHz


C 8173.15 to 8213.89 MHz

D 8234.26 to 8275.00 MHz

ROI-S04077 APPENDIX

A-9






G8224G/H

A 7730.56 to 7771.30 MHz


C 7852.78 to 7893.52 MHz

D 7913.89 to 7954.63 MHz

A 8025.00 to 8065.74 MHz


C 8147.22 to 8187.96 MHz

D 8208.33 to 8249.07 MHz



G8224J/K


B 8328 to 8363 MHz


B 8447 to 8482 MHz



G8224L/M


B 8324.5 to 8363.0 MHz


B 8450.5 to 8489.0 MHz

APPENDIX ROI-S04077

A-10






G8224N/P

A 7908.5 to 7961.0 MHz


C 8020.5 to 8073.0 MHz

D 8076.5 to 8129.0 MHz

A 8174.5 to 8227.0 MHz


C 8286.5 to 8339.0 MHz

D 8342.5 to 8395.0 MHz

Table A-19 8 GHz Band, Relationship of Sub-band and Radio Frequency NORWAY


G8224R/S


B 8273 to 8329 MHz


B 8427 to 8483 MHz



G8737A

A For 10715 to 10795 MHz

Lower BandB For 10835 to 10915 MHz

C For 10955 to 11035 MHz

D For 11075 to 11155 MHz

A For 11245 to 11325 MHz

Upper BandB For 11365 to 11445 MHz

C For 11485 to 11565 MHz

D For 11605 to 11685 MHz

ROI-S04077 APPENDIX

A-11





G7965A

A For 12754.5 to 12803.5 MHz

Lower Band

B For 12810.5 to 12859.5 MHz

C For 12866.5 to 12915.5 MHz

D For 12922.5 to 12971.5 MHz

E For 12894.5 to 12943.5 MHz

A For 13020.5 to 13069.5 MHz

Upper Band

B For 13076.5 to 13125.5 MHz

C For 13132.5 to 13181.5 MHz

D For 13188.5 to 13237.5 MHz

E For 13160.5 to 13209.5 MHz



G8550A

A For 14406.5 to 14515.0 MHz

Lower BandB For 14518.5 to 14627.0 MHz

C For 14630.5 to 14739.0 MHz

D For 14742.5 to 14851.0 MHz

A For 14896.5 to 15005.0 MHz

Upper BandB For 15008.5 to 15117.0 MHz

C For 15120.5 to 15229.0 MHz

D For 15232.5 to 15341.0 MHz

APPENDIX ROI-S04077

A-12






G8550A

A For 14504.5 to 14613.0 MHz

Lower BandB For 14616.5 to 14725.0 MHz

C For 14728.5 to 14837.0 MHz

D For 14840.5 to 14921.0 MHz

A For 14924.5 to 15033.0 MHz

Upper BandB For 15036.5 to 15145.0 MHz

C For 15148.5 to 15257.0 MHz

D For 15260.5 to 15341.0 MHz

Table A-24 15 GHz Band, Relationship of Sub-band andRadio Frequency CEPT/ERC/REC 12-07E


G8550AA 14504.5 to 14616.5 MHz Lower Band

A 15232.5 to 15344.5 MHz Upper Band



G8381A

A 17720.50 to 18035.50 MHz


C 18364.50 to 18672.50 MHz

A 18728.50 to 19043.50 MHz


C 19372.50 to 19680.50 MHz

ROI-S04077 APPENDIX

A-13







G8381A

A 17706.25 to 18057.50 MHz


C 18358.75 to 18688.75 MHz

A 18716.25 to 19067.50 MHz


C 19368.75 to 19698.75 MHz

Table A-27 18 GHz Band, Relationship of Sub-band and Radio Frequency PORTARIA 1288








Table A-29 23 GHz Band, Relationship of Sub-band andRadio Frequency ITU-R F.637-3 Annex 3&4


G7960A


B 22274.00 to 22590.00 MHz


B 23282.00 to 23598.00 MHz

APPENDIX ROI-S04077

A-14






G7960A

A 21200.00 to 21600.00 MHz


C 21998.75 to 22400.00 MHz

A 22400.00 to 22800.00 MHz


C 23198.75 to 23600.00 MHz



G7960A

A 21224.00 to 21588.00 MHz


C 21924.00 to 22345.75 MHz

A 22456.00 to 22820.00 MHz


C 23156.00 to 23577.75 MHz

Table A-32 23 GHz Band, Relationship of Sub-band andRadio Frequency PORTARIA 83


G7960A

B 21815.50 to 21927.50 MHzLower Band

C 21959.00 to 22358.00 MHz

B 23047.50 to 23159.50 MHzUpper Band

C 23191.00 to 23590.00 MHz

ROI-S04077 APPENDIX

A-15






G8516A

A 24549.88 to 24857.00 MHz


C 25137.00 to 25444.13 MHz

A 25557.88 to 25865.00 MHz


C 26145.00 to 26452.13 MHz



G8516A


B 25811.63 to 26054.88 MHz


B 26935.13 to 27178.38 MHz



G8512A

A 37058.88 to 37436.00 MHz


C 37800.00 to 38177.13 MHz

A 38318.88 to 38696.00 MHz


C 39060.00 to 39437.13 MHz

APPENDIX ROI-S04077

A-1616 pages





G8512A


B 38925.00 to 39250.00 MHz


B 39625.00 to 39950.00 MHz

Table A-37 38 GHz Band, Relationship of Sub-band andRadio Frequency ANATEL


G8512A

A 37004.00 to 37450.00 MHz


C 37786.00 to 38234.00 MHz

A 38262.00 to 38710.00 MHz


C 39046.00 to 39494.00 MHz


CL-1

6-38 GHz 32/128 QAMSDH DIGITAL MICROWAVE RADIO SYSTEM

PASOLINK +

(STM-1/1+0 SYSTEM)

OPERATION

CONTENTS


2. INTERFACE TERMINALS AND JACKS •••••••••••••• 2-1

3. CONTROLS, INDICATORS AND TEST JACKS••• 3-13.1 IDU••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-13.2 ODU ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-4

4. LAN CABLE SELECTION (OPTIONAL)••••••••••••••• 4-1

5. EQUIPMENT START-UP AND SHUT-DOWN••••••• 5-15.1 Start-up••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5-15.2 Shut-down ••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5-2

6. SETTING AND MONITORING IN LCT ••••••••••••••••• 6-16.1 General ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6-1

CONTENTS ROI-S03833

CL-22 pages


ROI-S03833 GENERAL

1-1

1. GENERAL

This section provides instructions for operation of the 6/7/8/11/13/15/18/23/26/38 GHz 150 MB digital microwave radio system.

This section includes interface terminals and jacks, controls, indicators,test jacks, LAN cable selection, equipment start-up, equipment shut-down,and setting and monitoring in LCT are required for the local operation.

The firmware version described in this manual is 1.0.17.

GENERAL ROI-S03833

1-22 pages


ROI-S03833 INTERFACE TERMINALS AND JACKS

2-1

2. INTERFACE TERMINALS AND JACKS

The interface terminals and jacks for interconnection with the associatedequipment are arranged as shown in Figs. 2-1 and 2-2, and are used asdescribed in Tables 2-1 and 2-2 as required. Fig. 2-1 and Table 2-1 showthe Modulator-Demodulator (Indoor Unit (IDU)) and Fig. 2-2 and Table 2-3 show the Transmitter-Receiver (Outdoor Unit (ODU)).

Fig. 2-1 IDU Interface Terminals and Jacks

LCTPNMT

IF IN/OUT

SC IN/OUT

LAN

ALM/AUX

STM1 IN STM1 OUT

SEL V

V11NE1 NE2

ALM

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

EOW1EOW2

ALMWS IN/OUT

IDU

WS IN/OUT

ODU

ALM

LAN CARD

ALTERNATE MODULE

10BASE-T

WS INTFC

INTERFACE TERMINALS AND JACKS ROI-S03833

2-2

Fig. 2-2 ODU Interface Terminal

IFL FG RX LEVMON

11-38 GHz BAND ODU

FG

IF IN/OUT RF IN/OUT

(FRONT VIEW) (REAR VIEW)

(REAR VIEW) (BOTTOM VIEW)

FG

IF IN/OUT

RF IN/OUT

6/7/8 GHz BAND ODU


2-3

Table 2-1 Interface Terminals and Jacks for IDU

Terminal/Jack Description

IF IN/OUT (N-J connector)

TX IF signal output to ODU and RX IF signal input from ODU

Warning: 1. Do not connect other cables to this connector,because the – 43 V DC power is superimposedon this connector.

2. Do not touch the jack care before turning offpower switch.

STM1 IN(IEC169-13 (1.6/5.6) Connector: Electrical)(FC/PC: Optical)

Synchronous transport module (STM) -1 data input

STM1 OUT(IEC169-13 (1.6/5.6) Connector: Electrical)(FC/PC: Optical)

STM-1 data output

WS IN/OUT(D-Sub Connector, 9 Pins)

Wayside signal input/output

Pins 1 IDT (+) (Input Data)

Pins 2 Ground

Pins 3 ODT (+) (Output Data)

Pins 4 Ground

Pins 5 Ground

Pins 6 IDT (–)*

Pins 7 Ground

Pins 8 ODT (–)*

Pins 9 Ground

Note: * When using the 2.048 Mbps/75Ω WS interface, thesepins are used for ground.

10BASE-T (on LAN Card)(Modular Connector)

Local area network (LAN) data input/output (For details, refer to chapter 4)

MDI MDI-X

Pin 1 TX + RX +

Pin 2 TX − RX −

Pin 3 RX + TX +

Pin 6 RX − TX −


2-4

PNMT(Modular Connector)

Pasolink network management terminal (PNMT) data input/output (RS-232C)

Pin 1 PNMT DCD

Pin 2 PNMT TXD

Pin 3 PNMT RXD

Pin 4 PNMT DRS

Pin 5 Ground

Pin 6 PNMT DTR

Pin 7 PNMT CTS

Pin 8 PNMT RTS

LCT(Modular Connector)

Local craft terminal (LCT) data input/output (RS-232C)

Pin 2 LCT TXD

Pin 3 LCT RXD

Pin 5 Ground

Pin 7 LCT CTS

Pin 8 LCT RTS

EOW1(Modular Connector)

Engineering orderwire (EOW)1 signal extension terminal for back-to-back connection between IDUs (VF)

Pin 1 EXT EOW1 input (+)

Pin 2 EXT EOW1 input (−)

Pin 3 EXT CALL1 input

Pin 4 EXT EOW1 output (+)

Pin 5 EXT EOW1 output (−)

Pin 6 Ground

Pin 7 EXT CALL1 output

Pin 8 Ground


EOW2 signal extension terminal for back-to-back connection between IDUs (VF)



Table 2-1 Interface Terminals and Jacks for IDU (Cont’d)



2-5




Pin 6 Ground


Pin 8 Ground

NE1(Modular Connector)

Pasolink network management system (PNMS) data input/output for back-to-back connection between IDUs (RS-485)

Pin 1 TXD +/RXD+

Pin 2 TXD−/RXD−

Pin 3 RXD +/TXD +

Pin 4 CK +

Pin 5 CK −

Pin 6 RXD−/TXD−

Pin 7 Ground

Pin 8 Ground


PNMS data input/output for back-to-back connection between IDUs (RS-485)

Pin 1 TXD+/RXD+

Pin 2 TXD−/RXD−

Pin 3 RXD+/TXD+

Pin 4 N.C

Pin 5 N.C

Pin 6 RXD−/TXD−

Pin 7 Ground

Pin 8 Ground

PNMS V11(Modular Connector)

PNMS data (V11) input/output

Pin 1 NMS TXD +

Pin 2 NMS TXD −

Pin 3 NMS RXD +




2-6

Pin 6 NMS RXD −

PNMS LAN(Modular Connector)

PNMS data (LAN) input/output

Pin 1 NMS TD +

Pin 2 NMS TD −

Pin 3 NMS RD +

Pin 6 NMS RD −

SC IN/OUT(D-sub Connector, 37 Pins)

Service channel data input/output

Pins 1 (+) and 20 (–) OH1 (V.11-1) IDT

Pins 2 (+) and 21 (–) OH1 (V.11-1) ICK

Pins 3 (+) and 22 (–) OH1 (V.11-1) IFP

Pins 4 (+) and 23 (–) OH1 (V.11-1) DDT

Pins 5 (+) and 24 (–) OH1 (V.11-1) DCK

Pins 6 (+) and 25 (–) OH1 (V.11-1) DFP

Pins 8 (+) and 27 (–) OH2 (V.11-2) IDT

Pins 9 (+) and 28 (–) OH2 (V.11-2) ICK

Pins 10 (+) and 29 (–) OH2 (V.11-2) IFP

Pins 11 (+) and 30 (–) OH2 (V.11-2) DDT

Pins 12 (+) and 31 (–) OH2 (V.11-2) DCK

Pins 13 (+) and 32 (–) OH2 (V.11-2) DFP

Pins 15 (+) and 34 (–) OH3 (VF-1) input

Pins 16 (+) and 35 (–) OH3 (VF-1) output



Pins 7, 14, 19, 26 and 33 Ground

Note: For service channel data, insert/drop signalwaveforms and signal direction are shown in Fig. 2-3.

ALM(D-sub Connector, 25 Pins)

Alarm output




2-7

Pins 25 (COM), 12 (NC) and 13 (NO) RL1

Maintenance alarm outputBetween Between

Pins 25 and 12 Pins 25 and 13Normal state : Closed OpenAlarm state : Open Closed


Power alarm outputBetween Between



CPU alarm outputBetween Between



ODU alarm output**Between Between

Pins 20 and 7 Pins 20 and 8Normal state : Closed OpenAlarm/Event state : Open Closed


IDU alarm output**Between Between



BER alarm output**Between Between



Loss of signal (LOS) of STM-1 alarm output**Between Between


ALM/AUX(D-sub Connector, 25 Pins)

Alarm and transmission network surveillance auxiliary input/output

Pins 1 (+) and 14 (−) House Keeping (HK)1 alarm inputNormal state : Open (200 kiloohms or more)Alarm/Event state : Closed (50 ohms or less)




2-8

Pins 2 (+) and 15 (−) HK2 alarm input Normal state : Open (200 kiloohms or more)

Alarm/Event state : Closed (50 ohms or less)










House keeping (HK)1 control output** or equipment alarm output***

Between BetweenPins 7 and 20 Pins 7 and 21

Normal state : Closed OpenAlarm state : Open Closed


HK2 control output** or equipment alarm output***Between Between








Pin 13 Ground

FG Frame ground

G Wrist band ground




2-9

Notes: 1. ** This is a factory setting (default setting).2. *** These alarm items can be set by the LCT as shown in

Table 2-2 (Alarms may be selectively assigned to RL4 to RL11).

SEL V(Molex M5557-4R Connector, 4 Pins)

–36 V to –60 V DC (or +36 V to +60 V DC)/–20 V to –60 V DC (or +20 V to +60 V DC) power input

Pins 1 and 3 0 V (or +48 V)/0 V (or +24 V)

Pins 2 and 4 –48 V (or 0 V)/–24 V (or 0 V)



Table 2-2 Summarized External Alarms (Form-C)

ALARM ITEM

INTERFACE TERMINAL

ALM ALM/AUX

RL4 RL5 RL6 RL7 RL8 RL9 RL10 RL11

ODU ALM

CABLE ALM

TX PWR ALM

TX IN ALM

RX IN ALM

APC ALM

IDU ALM

MOD ALM

DEM ALM

SUB INTFC ALM

MAIN INTFC ALM

BER ALM

STM-1 LOS

HK1 OUT

HK2 OUT

HK3 OUT

HK4 OUT


2-10

Notes: 1. marks are set at factory. (default setting)2. marks can be set by LCT. The relay can be set-up so that

they will be triggered by two or more alarm items.3. Alarms can be assigned to RL8 to RL11 if the relays have not

been designated for HK control.4. The number after an alarm item shows a channel number.5. While the RESET switch is pressed to initialize the CPU,

alarm(s) is in normal condition. After initialization, thealarm information is properly provided through relaycontents.


2-11

Fig. 2-3 SC Data Signal Waveforms and Direction

WAVEFORMS AND DIRECTION

INSERT SIGNAL

CONTRADIRECTIONAL INTERFACE (SOFTWARE SELECTABLE)

CODIRECTIONAL INTERFACE (SOFTWARE SELECTABLE)

IDTICKIFP

PASOLINK+

IDUUSER

EQUIPMENT

DROP SIGNAL

CODIRECTIONAL INTERFACE

DDTDCKDFP

PASOLINK+

IDUUSER

EQUIPMENT

IDTICKIFP

PASOLINK+

IDUUSER

EQUIPMENT

IDT: Insert Data (Input) DDT: Drop Data (Output)ICK: Insert Clock (Input/Output) DCK: Drop Clock (Output)IFP: Insert Frame Pulse (Input/Output) DFP: Drop Frame Pulse (Output)

IDT

ICK

IFP

8 KHz (125 us)

a gfedcb h

DDT

DCK

DFP

8 KHz (125 us)

a gfedcb h

The insert/drop signal waveforms and signal direction of the servicechannel data are shown below.


2-1212 pages

Table 2-3 Interface Terminals and Jacks for ODU


IF IN/OUT(N-J Connector)

TX IF signal input and RX IF signal output

Warning: Do not disconnect the coaxial cable while theIDU is powered on.

FG Frame ground

RF IN/OUT(6/7/8 GHz : SMA)(11 GHz : PBR-100)(13/15 GHz : PBR-140)(18/23 GHz : PBR-220)(26 GHz : PBR-260)(38 GHz : PBR-320)

RF signal input/output from/to antenna

ROI-S03833 CONTROLS, INDICATORS AND TEST JACKS

3-1

3. CONTROLS, INDICATORS AND TEST JACKS

The controls, indicators and test jacks of the IDU and ODU are describedin this chapter.

3.1 IDU

The controls, indicators and jacks of the IDU are shown in Fig. 3-1. Theirfunctions are described as follows:

Fig. 3-1 IDU Controls, Indicators and Test Jacks

(A) IDU

PWR indicator:Lights when PWR switch is turned on.

PWR switch:Turns on or off the input DC power.

IDU indicator:Lights when:• Input STM-1 signal from MUX is lost 150M/OPT INTFC• Frame synchronization of input STM-1 signal from MUX is lost

150M/OPT INTFC• Input signal of service channel is lost MODEM

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

RESET

CALL

ODU

IDU

PWR

R SW PWR

ALM

MAINT

EOW

ALM

ALM

WS INTFC

ODU

ALM

MEMORY OVER FLOW

LINK

ALM

ALTERNATE MODULE

LAN CARD

CONTROLS, INDICATORS AND TEST JACKS ROI-S03833

3-2

• BER (E-BER) is worse than preset value (10-3 to 10-5, seletable) 150M/OPT INTFC

• BER (SD) is worse than preset value (10-5 to 10-9, seletable) 150M/OPT INTFC

• Frame synchronization of input STM-1 signal of radio is lost 150M/OPT INTFC

• BER (E-BER) is worse than preset value of radio (10-3 to 10-5,seletable) 150M/OPT INTFC

• BER (SD) is worse than preset value of radio (10-5 to 10-9,seletable) 150M/OPT INTFC

• Central processing unit (CPU) of MD UNIT failure MODEM

• Receiver alarm is detected and input IF signal is lost MODEM

• Transmitter alarm is detected MODEM

• BER is worse than preset value (10-4 to 10-6, seletable) MODEM

• DC-DC CONV unit failure DC-DC CONV• 150M INTFC/OPT INTFC module failure 150M INTFC/

OPT INTFC• LAN CARD module failure LAN CARD• WS INTFC module failure WS INTFC

ODU indicatorLights when:• Transmit RF power of ODU increases/decreases approx. 3 dB

from preser value,• Receiver input level of ODU decreases below squelch level,• APC loop of local oscillator in ODU is unlocked, • IF signal from IDU is lost at the ODU,

MAINT indicatorLights when the maintenance “ON” mode is selected by the LCT.

RESET switch:RESET switch initializes the CPU operation.Note: When the display indication on the LCT is frozen or the

CPU operation is abnormal, press the RESET switch.


3-3

CALL switch:Transmits calling signal and rings the buzzer in the oppositestation.

EOW jack:Accesses EOW signal when headset is connected.

R SW switch:Used to go back to the previous program version after the IDUprogram is updated. Slide the switch from the current position tothe other position. Then press the RESET switch.

Note: Since there is a case where equipment stops warking if R SWoperation is mistaken, please contact NEC, when you haveto operate it.

(B) 150 M INTFC/OPT INTFC Module• ALM indicator:

Lights when :• Input STM-1 data signal is lost• Input STM-1 frame synchronization is lost• 150M INTFC/OPT INTFC module failure• E-BER alarm is detected• SD alarm is detected

(C) WS INTFC Module• ALM indicator:

Lights when the WS INTFC module fails.

(D) LAN CARD Module:• ALM indicator:

Lights when the LAN CARD module fails.• LINK indicator:

Lights when IDU and associated equipment are linked.• Memory Over Flow indicator:

Lights when the memory of LAN CARD module overflows or acollision condition occurs.


3-4

3.2 ODU

The test jack of the ODU is shown in Fig. 3-2.

Fig. 3-2 ODU Controls, Indicators and Test Jacks

Their functions are described as follows:

RX LEV MON:

• Gives access to the receiving level monitoring voltage.

• Provided for transmission of OW signal between IDU and ODUwhen the OW/RX LEV Monitor and headset is connected.

The X0818A OW/RX LEV Monitor (optional) is used for operation andmaintenance and is shown in Fig. 3-3. The operation range of the OW/RXLEV Monitor is 0 °C to +45 °C. The function of the controls/interface ofthe OW/RX LEV Monitor are described as follows:

METER:Indicates receiving RF level monitoring voltage.

Note: When the RF level is monitored, set to “Antenna AlignmentMode” of Control in Maintenance by LCT.

OW indicator:Lights when OW communication is performed (The OW ON-OFFswitch is set to ON). When the OW indicator is not lit even thoughOW switch is set to ON, replace the battery (6F22(UB)/9V) since thebattery had become weak.

IFL FG RX LEVMON

RX LEV MON

6/7/8 GHz BAND ODU 11-38 GHz BAND ODU

RX LEV MON


3-5

OW ON-OFF switch:Enables to transmission of OW signal between IDU and ODU.

VOL control:Adjusts receive OW voice level.

RX LEV/OW IN:Input connector for the RX LEV monitoring voltage and OW signal.

HEADSET jack:Permits communication between IDU and ODU when orderwireheadset is connected.

Fig. 3-3 Controls, Indicators and Test Jacks of OW/RX LEV Monitor

VOL

ON O

W OFF

12 3

450

V

PASOLINKANTENNA POINTING MONITOR

OW

RX LEV/OW IN

HEADSET

METER

OW INDICATOROW SWITCH

VOL CONTROL

RX LEV/OW INHEADSET

BATTERY(6F22(UB)/9V)


3-66 pages


ROI-S03833 LAN CABLE SELECTION (OPTIONAL)

4-1

4. LAN CABLE SELECTION (OPTIONAL)

If the LAN Card is used in the system, setting of the MDI – MDI-X switchis required. The switch setting depends on whether the LAN cable that willbe attached to the 10BASE-T connector is a straight type or cross type.

Signal name of 10BASE-T connector is as follows:

SET POSITION SET POSITIONMDI MDI-X

Pin1 TX + RX +2 TX − RX −3 RX + TX +6 RX − TX −

FRONT

MDI

MDI-X

LAN CARD

10BASE-T CONNECTOR

Switching Function Set Position Remarks

Selection for LAN cable When a straight cable is connected to the 10BASE-T connector on the LAN Card, switch is set to MDI position.

In case of straight cable is used, setMDI-MDI-X switch to:

SET POSITION• HUB and Router MDI• PC MDI-X

In case of cross cable is used, setMDI-MDI switch to:

SET POSITION• HUB and Router MDI-X• PC MDI

When a cross cable is connected to the 10BASE-T connector on the LAN Card, switch is set to MDI-X position.

LAN CABLE SELECTION (OPTIONAL) ROI-S03833

4-22 pages


ROI-S03833 EQUIPMENT START-UP AND SHUT-DOWN

5-1

5. EQUIPMENT START-UP AND SHUT-DOWN

Procedure for equipment start-up and shut-down are provided in Chart 5-1and Chart 5-2.

Warning: After turning ON the equipment, wait at least 10 secondsbefore turning it OFF again. Repeatedly turning the powerON and OFF within a short interval may cause the IDU tofail.

5.1 Start-up

The start-up procedure for the equipment is shown in Chart 5-1.

Chart 5-1 Start-up

This procedure describes how to turn the power on/off after the initiallineup is completed and the configuration of frequency and transmit outputlevel is also completed.

Caution: Do not apply to the equipment a voltage that varies sharply.The equipment may operate wrongly.

Apparatus:Suitable ScrewdriverDigital Multimeter

Step Procedure

Note: The ODU power is supplied by the IDU.

1 Check that the IF cable between the IDU and the ODU isconnected,

2 Turn on the PWR switch on the IDU (see Fig. 5-1),

3 Confirm that PWR indicator on the IDU is lighted and all alarmindicators are unlighted.

EQUIPMENT START-UP AND SHUT-DOWN ROI-S03833

5-22 pages

Fig. 5-1 Power Switch and Indicator Location

5.2 Shut-down

The procedures for stopping the equipment is shown in Chart 5-2.

Chart 5-2 Shut-down

Step Procedure

1 Turn off the PWR switch on the front of the IDU (see Fig. 5-1).

PWRPWR SWITCH

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

ODU

ROI-S03833 SETTING AND MONITORING IN LCT

6-1

6. SETTING AND MONITORING IN LCT

This chapter outlines the system configuration setting/monitoringprovisioning setting, maintenance, alarm/status monitoring andperformance monitoring operation performed by local craft terminal(LCT).

6.1 General

The LCT can be used to perform the following items.

Login Level(login name)

Password

Admin

(12345678)

User

(None)

Menu ALARM /STATUS ALARM/STATUS

PERFORMANCEMONITOR• Display Metering/BER• Display Performance

Monitor• Display Threshold Data• Set Threshold Data

PERFORMANCEMONITOR• Display Metering/BER• Display Performance

Monitor• Display Threshold Data

PROVISIONING DATA• Display Current Data• Set Provisioning Data

PROVISIONING DATA• Display Current Data

SYSTEMCONFIGURATION• Display Radio Equipment

Configuration• Setup Radio Equipment

Configuration

SYSTEMCONFIGURATION• Display Radio Equipment

Configuration

INVENTORY DATA• Display Inventory Data

INVENTORY DATA• Display Inventory Data

RELAY/HOUSE KEEPING• Display Current State• Relay Configuration• Output Control

RELAY/HOUSE KEEPING• Display Current State

SETTING AND MONITORING IN LCT ROI-S03833

6-2

The password can be changed when “Admin” level is logged in. Forprocedures to change the password, refer to the Appendix in Maintenancesection.

Note: Do not forget the changed password. If you forget a password,report to NEC.

Equipment setting in provisioning data can not be changed in “User” level.

Login Level(login name)

Admin User

MAINTENANCE• Maint Mode• Control• Reset CPU• Set Calendar• Password Setting• Program Download

(Logout)


6-3

General of menu flow for 1+0 system is shown below.

(Logout)

AA

Alarm/Status

Display Metering/BERPerformance Monitor

Set Threshold Data

Display Threshold Data

Display Performance Monitor

15 min Register/DMR

15 min Register/MUX

1 day Register/DMR

1 day Register/MUX

15 min Register/DMR

A

BBE Occur

BBE Recover

15 min Register/MUX

ES Occur

ES Recover

SES Occur

SES Recover

UAS Occur

UAS Recover

OFS Occur

OFS Recover

BBE Occur

BBE Recover

ES Occur

ES Recover

SES Occur

SES Recover

UAS Occur

UAS Recover

OFS Occur

OFS Recover


6-4

BB

AAA

1 day Register/DMR

BBE Occur

BBE Recover

ES Occur

ES Recover

SES Occur

SES Recover

UAS Occur

UAS Recover

1 day Register/MUX

OFS Occur

OFS Recover

BBE Occur

BBE Recover

ES Occur

ES Recover

SES Occur

SES Recover

UAS Occur

UAS Recover

OFS Occur

OFS Recover


6-5

BB

Provisioning Data

Display Current Data

Set Provisioning Data

ALS

Enable/Disable

ALS Delay Time

BER Threshold

High BER (Radio)

Low BER (Radio)

E- BER (DMR)

SD (DMR)

E- BER (MUX)

SD (MUX)

Sub Interface

CCNote: * WS menu can not be set in 128 QAM system.

WS INTFC*

LAN CARD

OH Assignment

Easy

VF1 Setting

V11-1 SettingV11-1 Direction Setting

V11-2 Setting

V11-2 Direction Setting

VF2 Setting

LAN CARD Setting

Customize

MTPC TX PWR

ATPC MAXIMUM PWR

ATPC Range

ATPC MINIMUM PWR

RX Threshold

Additional ATT

ODU ALM Mode


6-6

System Configuration

Display Radio Equipment Configuration

Setup Radio Equipment Configuration

Equipment Configuration

TX Power Control

RF Frequency

Frame ID

Main Interface

CC

Inventory Data

Display Inventory Data

DD

Relay Configuration

Display Current State

HK-OUT 1/2/3/4 Enable

Relay/House keeping

HK-OUT 1/2/3 Enable

HK-OUT 1/2 Enable

HK-OUT 1 Enable

HK-OUT Disable

ODU ALM RL04 to RL11

IDU ALM RL04 to RL11

TX PWR ALM RL04 to RL11

TX IN ALM RL04 to RL11

RX IN ALM RL04 to RL11

APC ALM RL04 to RL11

CABLE ALM RL04 to RL11

BER ALM RL04 to RR11

MOD ALM RL04 to RL11

DEM ALM RL04 to RL11

MAIN INTFC RL04 to RL11

SUB INTFC RL04 to RL11

STM-1 LOS RL04 to RL11

B


6-7

DD

Output ControlHK-OUT1

HK-OUT2

HK-OUT3

HK-OUT4

B

MIANTENANCE (Admin mode only)

MAINT Mode

Control

RF Frequency

ATPC Manual Control

TX MUTE

CW

IF Loopback

STM-1 Loopback (Near End)

STM-1 Loopback (Far End)

ALS Manual Restart

Reset CPU

IDU CTRL

IDU MODEM

ODU

Set Calendar

Password Setting

Program Download

Antenna Alignment Mode


6-88 pages



CL-1


PASOLINK +

(STM-1/1+0 SYSTEM)

INSTALLATION AND INITIAL LINE UP

CONTENTS


2. INSTALLATION••••••••••••••••••••••••••••••••••••••••••••••••••• 2-12.1 Packing List ••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2-22.2 Unpacking of IDU and ODU••••••••••••••••••••••••••••••••••• 2-72.3 IDU Mounting •••••••••••••••••••••••••••••••••••••••••••••••••••• 2-132.4 ODU Mounting••••••••••••••••••••••••••••••••••••••••••••••••••• 2-152.4.1 Mounting•••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2-162.4.2 Demounting •••••••••••••••••••••••••••••••••••••••••••••••••••••• 2-432.5 Cable Termination•••••••••••••••••••••••••••••••••••••••••••••• 2-442.6 LAN Cable Selection (Optional) •••••••••••••••••••••••••••• 2-602.7 Cable and Terminal Connections •••••••••••••••••••••••••• 2-612.8 Frame Grounding••••••••••••••••••••••••••••••••••••••••••••••• 2-692.9 Waterproof Protection••••••••••••••••••••••••••••••••••••••••• 2-73

3. INITIAL LINE UP ••••••••••••••••••••••••••••••••••••••••••••••••• 3-13.1 Start-up••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-13.2 Shut-down ••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-33.3 Initial Setting•••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-43.4 Antenna Orientation ••••••••••••••••••••••••••••••••••••••••••• 3-263.5 Lineup Test••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-32

CONTENTS ROI-S03834

CL-22 pages


ROI-S03834 GENERAL

1-1

1. GENERAL

This section provides installation and initial line up information on the 6/7/8/11/13/15/18/23/26/38 GHz 150MB microwave radio system.


GENERAL ROI-S03834

1-22 pages


ROI-S03834 INSTALLATION

2-1

2. INSTALLATION

The standard installation is summarized in this section. Included herein isinformation on typical installation work flow and guides for IDUinstallation, ODU installation, Antenna (ANT) installation, waveguideconnection and cable connections. The installation flow diagram is shownbelow.

Fig. 2-1 Typical Installation Flow Diagram

•

Unpacking of IDU(see para 2.2)

Unpacking of ODU(see para 2.2)

ODU Mounting(see para 2.4)

IDU Mounting(see para 2.3)

Waveguide Connection

(see para 2.4.1)(If required)

Frame Grounding(see para 2.8)

Cable Termination(see para 2.5)

Waterproof Protection

(see para 2.9)

Cable and Terminal Connections(see para 2.7)

LAN Cable Selection (Optional)

(see para 2.6)

INSTALLATION ROI-S03834

2-2

2.1 Packing List

Each unpacked component of the [ ] GHz [ ] MB digital radio systemmust be checked as shown below.

Note: * These are standard packing boxes.

PACKING LIST DRAWING NO.

IDU and ODU Fig. 2-2

Mounting Bracket Fig. 2-3 *

Installation Kit Fig. 2-4 *


2-3/4

Fig. 2-2 Packing List for IDU and ODU

No. DESCRIPTION

1 TRP-6/7/8G-1AA (Coaxial type)

2 TRP-( )G-1AA (ODU) (Antenna direct mounting type)

3 TRP-( )G-1AA (ODU) (Waveguide type)

4 O-Ring (Attached to the waveguide type ODU)

5 MDP-150MB5T-4 (32QAM)/ MDP-150MB 7T-2 (128 QAM) (IDU)

6 Power Connector (Molex Housing M5557-4R (×1ea)

NAME PLATE

ANTENNA DIRECT MOUNTING TYPE

WARNING-43V OUTPUT


I/F CABLE

WAVEGUIDE TYPE

WARNING!


MDP-150MB7T-2

WEIGHT: 7 kg (WITH OPTION)


SER. No. DATE . INDOOR UNIT

48V A (WITH ODU & OPTION)

0678(G7911)

!

! CAUTION


Applies only to OPT INTFC.


6/7/8 GHz BAND ODU

13-38 GHz BAND ODU13-38 GHz BAND ODU

PASOLINK



( )


TXhigh/low

TRP-( )G-1AAOUTDOOR UNIT ( )

+

MHz SUB band

0678 !

(BOTTOM VIEW)


(LEFT SIDE VIEW)

NAME PLATE

PASOLINK

SUB Band


( )


TXhigh/low

TRP-( )G-1AAOUTDOOR UNIT ( )

+

TX frequency

0678 !

Note: Other cables and connectorsexcept those described in thisfigure must be provided by thecustomer.

21

3

4

5

6


2-5

Fig. 2-3 Packing List of Mounting Bracket

21

3

No. DESCRIPTION

1 Pole Mounting Bracket for 6/7/8 GHz Band ODU

2 Pole Mounting Bracket (New Type) for 11-38 GHz Band ODU

3 Pole Mounting Bracket (Old Type) for 11-38 GHz Band ODU


2-6

IF IN

/OU

T

Fig.

2-4

Ins

talla

tion

Kit

Pack

ing

List

of I

DU

and

OD

U

P-N

CO

NN

ECTO

R

MO

LEX

CO

NN

ECTO

R(F

EMAL

E)IE

C16

9-13

CO

NN

ECTO

R/

FC/P

C O

PTIC

AL C

ON

NEC

TOR

IEC

169-

13 C

ON

NEC

TOR

/FC

/PC

OPT

ICAL

CO

NN

ECTO

R

SC IN

/OU

TAL

M

CAL

LR

ESET

SEL

V

+−

ALM

STM

-1 IN

+R

SW

EO

W

FUSE

(7.5

A)

PWR

PASO

LIN

K

PNM

TLC

TIF

IN

/OU

TEO

W1

EOW

2

NE1

NE2

V11 P

NM

SLAN

ALM

/AU

X

STM

-1 O

UT

PWR

MAI

NT

ALM

MO

DU

LAR

CO

NN

ECTO

R/

(MAL

E)

MO

DU

LAR

CO

NN

ECTO

R/

(MAL

E)

MO

DU

LAR

CO

NN

ECTO

R/

(MAL

E)

MO

DU

LAR

CO

NN

ECTO

R/

(MAL

E)

D-S

UB

CO

NN

ECTO

R/

(MAL

E)

D-S

UB

CO

NN

ECTO

R/

(MAL

E)

D-S

UB

CO

NN

ECTO

R/

(MAL

E)

IDU

OD

U

MO

DU

LAR

CO

NN

ECTO

R/

(MAL

E)

MO

DU

LAR

CO

NN

ECTO

R/

(MAL

E)M

OD

ULA

R C

ON

NEC

TOR

/(M

ALE)

MO

DU

LAR

CO

NN

ECTO

R/

(MAL

E)M

OD

ULA

R C

ON

NEC

TOR

/(M

ALE)

11-3

8 G

Hz

BA

ND

OD

U

6/7/

8 G

Hz

BA

ND

OD

U


2-7

2.2 Unpacking of IDU and ODU

The unpacking procedures for the IDU and ODU are shown in followingchart.

• IDU : Chart 2-1• 6/7/8 GHz Band ODU : Chart 2-2• 11-38 GHz Band ODU : Chart 2-3

Note: When conveying the IDU or ODU to another place, the originalpacking should be made to avoid damage.

Chart 2-1 Unpacking Methods for IDU

Step Procedure

1 Cut the p.p. tape at top of the carton (1 to 3). Then open thecarton,

2 1

3


2-8

Chart 2-1 (Cont’d)

Step Procedure

2 Take out the accessories, IDU carton and cushioningmaterials,

CUSHIONINGMATERIAL

CARTON(ACCESSORIES)

CARTON(IDU)

CUSHIONINGMATERIAL(IDU)


2-9


Step Procedure

3 Remove the cushioning materials from the carton (IDU),

4 Take out the IDU wrapped with antistatic bag from thecarton,

5 Take out the IDU from the antistatic bag,

6 Inspect the IDU.

ANTISTATIC BAG IDU

CARTON (IDU)


2-10

Chart 2-2 Unpacking Methods for 6/7/8 GHz Band ODU

The ODU is classified into HG and SHG types. The HG type is used for32 QAM system and SHG type for 32/128 QAM system.

Step Procedure


2 Take out the ODU with cushioning materials from thecarton,

2 1

3

CUSHIONINGMATERIALS

ODU


2-11


Step Procedure

3 Remove the cushioning materials from the ODU,

4 Take out the ODU from the antistatic bag,

5 Inspect the ODU.

CUSHIONINGMATERIALS

ANTISTATIC BAG

ODU


2-12

Chart 2-3 Unpacking Methods for 11-38 GHz Band ODU

The ODU is classified into HG and SHG types. The HG type is used for32 QAM system and SHG type for 32/128 QAM system.

Step Procedure


2 Take out the ODU with cushioning materials from thecarton,

3 Remove the cushioning materials from the ODU,

4 Take out the ODU from the antistatic bag,

5 Inspect the ODU.

2 1

3

CUSHIONING MATERIAL

CUSHIONING MATERIAL

ODU

CARTON


2-13

2.3 IDU Mounting

The installation procedure for IDU is shown in Chart 2-4. The IDU shouldbe installed in the radio station.

Chart 2-4 Mounting Methods of IDU

Step Procedure

1 Change the two brackets to desired position on the IDU, ifnecessary,

2 Align the IDU to the mounting position on the 19-inch rack,

FRONT POSITION

CENTER POSITION

SIDE VIEW

SCREW FLAT WASHER

SCREW FLAT WASHER

SPRING WASHER

SPRING WASHER


2-14


Step Procedure

3 Fix each side of the IDU to the 19-inch rack with the twoscrews,

4 To mount the IDU in a 19-inch rack, leave space for one unitat the top and bottom to allow heat from the IDU to radiate.

IDU

At least one rack unit

At least one rack unit


2-15

2.4 ODU Mounting

The procedures for mounting and demounting the ODU are describedhere. There are two types of mounting for the antenna direct mountingtype and waveguide connecting type. The ODU should be installed in theradio station. The tools for installation are listed in Table 2-1.

Note: In 18-38GHz band 2 O-rings are included in the Andrew directmount antenna kit; the large one is used for ODU mounting andsmall one is used for waveguide connection only. The 13 and15 GHz band antenna doesn’t have a small O-ring. (The small O-ring isn’t used for Andrew direct mount antenna.)If the small O-ring is used for ODU direct mount installation,there will be a gap between the ODU and antenna RF interfacebecause of a small tab at the ODU RF interface which interfereswith the small O-ring. This may cause the transmit or receivesignal level to decrease.

Table 2-1 Tools

TOOLS

Wrench or Monkey wrench

Screwdriver

Torque Wrench

Large O-ringSmall O-ring(Only for waveguide connection)


2-16

2.4.1 Mounting

The method of mounting is listed in Table 2-2.

Note: When the ODU is mounted on the opposite side of thepole, reassemble the ODU to the right position by theprocedure described in Chart 2-6.

Chart 2-5 6/7/8 GHz Band ODU Mounting Using Quasar Hybrid

Step Procedure

1 Mount the bracket to the pole with U-bolts as shown below,

Note: The diameter of the pole is from 48.5 to 114.5 millimeters.

Table 2-2 Pole Mounting

Antenna Direct MountingWaveguide Type

6/7/8 GHz Band 11-38 GHz Band

Chart 2-5* Chart 2-7 Chart 2-8

THICK NUT (M10)THIN NUT (M10)

SPRING WASHERFLAT WASHER

U-BOLT


2-17


Step Procedure

2 Mount the bracket for fixing No.1 ODU on the brackets withthe four bolts (M6),

3 Remove the four (4) supports from the ODU and then mountthe No.1 ODU on the bracket with the six bolts (M6),

BOLTS

M6 BOLTM6 BOLT

SUPPORT


2-18


Step Procedure

Cautions: 1. Fix the bolt in the following order: 1 → 3 → 2 or 3 → 1→ 2.

2. First, tighten the six bolts temporarilly. Next, tightenthem according to the decided torque.

4 Mount the antenna to the pole,

5 Connect the cable between the ODU and antenna withtorque wrench (pay attention connecting torque in oeder notto break connector screw).

1 3

2


2-19


Step Procedure

POLE

ANT

COAXIALCABLE*

Note: * Coaxial cable with SMA connector issupplied by NEC.

ODU


2-20

Chart 2-6 Pole Mounting Bracket, Reassembly

When the ODU is mounted on the opposite side of the pole, reassemble theODU to the right position by the following procedure.

Step Procedure

1 Loosen the two screws, remove the bracket from the polemounting type bracket,

2 Turn the pole mounting bracket as shown below,

U-BOLTS

SCREW

BRACKET


2-21


Step Procedure

3 Mount the bracket removed in step 1 onto the pole mountingtype bracket with two screws as shown below,

4 Secure two screws.

WASHER

SPRING WASHER

SCREW

U-BOLTS


2-22

Chart 2-7 11-38 GHz Band ODU Mounting(Antenna Direct Mounting)

Step Procedure

Note: The factory setting is V polarization. When H polarization isrequired, rotate the antenna connection unit (radiator) byfollowing the procedure described in steps 1 to 6.

1 Remove the antenna radome,

2 Hold the Antenna at right angle and loosen four screws with3 mm hex head wrench to rotate the waveguide flange ofantenna,

Note: Work by two persons as the weight of antenna is heavy. Preparethe floor sheet to at bottom of antenna to avoid injuring. Theantenna and covering with dust before beginning this work.Don’t turn the horn side of antenna to bottom to avoid felling onground.


2-23


Step Procedure

3 Hold the antenna with your hand and rotate it by 90degrees,

4 Check that the aperture part of the connection unit isrotated by 90 degrees, then fix it with the screws that wereloosened in step 1,

5 Fix the radome that was removed in step 1,

6 Fix the antenna to the fixture,

ANTENNA

Following Figure shown H-polarization


2-24


Step Procedure

7 For the New type bracket, refer to steps 8 and 9. For the oldtype bracket, refer to steps 10 to 17,

NEW TYPE BRACKET

8 Tighten the M10 hex bolts to fix clamp using a wrench,

9 Attach the safety bracket to the mount using two M6 screwstogether with spring washers and flat washers. Then,proceed to step 18,

WASHERNUTLOCK

WASHER

SAFETY BRACKET

MOUNT

SCREW

FLAT WASHERSPRING WASHER


2-25


Step Procedure

OLD TYPE BRACKET

10 Fix the azimuth adjustment clamp and V-clamp to the pole,

HOLE FOR GUIDE PIN

SAFETY BRACKET


2-26


Step Procedure

11 Tighten the M10 hex head bolt to fix the clamp using awrench,

12 Attach the mounting pivot plate with v-clamp to the pole,


2-27


Step Procedure

13 Tight the M10 hex head screw with wrench to fix the plate,

14 Attach the mounting bracket to the pivot plate mounted instep 12,


2-28


Step Procedure

15 Adjust the elevation and tighten the M10 hex head screwwith wrench to fix the mounting bracket,

16 Mount the antenna to the mounting bracket,


2-29


Step Procedure

17 Tighten the M10 hex head screw with wrench to fix theantenna,

ODU MOUNTING

18 When vertical polarization is required, rotate the ODU sothat the plate marked V is on top,

Note: Remove the protection metallic plate covering the waveguidehole on ODU.

19 When horizontal polarization is required, remove the guidepin fixed on the plate marked with V,

GUIDE PIN

PLATE MARKED WITH V


2-30


Step Procedure

20 Insert the guide pin removed in step 19 behind the platemarked H,

21 Rotate the ODU so that the plate marked H is on top,

GUIDE PIN

PLATE MARKED WITH H

PLATE MARKED WITH V

UP

V POLARIZATION

PLATE MARKED WITH H

UP

H POLARIZATIONV/H Polarization Conversion


2-31


Step Procedure

22 Mount the ODU to the bracket,

23 Insert the guide pin into the hole of the bracket and set theposition of screws,

GUIDE PIN


2-32


Step Procedure

Caution: Align the flanges on the antenna and ODU correctly, andfix the ODU with four screws.

ODU

ODU FLANGE

ANTENNA FLANGE

ANTENNA


2-33


Step Procedure

24 Fix the ODU to the bracket with four screws,

Note: Torque: 450 N·cm.

25 Repeat steps 1 to 24 for No.2 ODU and antenna.

SCREWS

SCREWS


2-34

Chart 2-8 11-38 GHz Band ODU Mounting (Waveguide Connection)

Step Procedure

1 Mount the bracket to the pole with U-bolts as shown below,

Note: The diameter of the pole is from 48.5 to 114.5 millimeters.

2 Mount the ODU on the brackets with the bolts (M6),

THICK NUT (M10)

THIN NUT (M10)SPRING WASHER

FLAT WASHER

U-BOLT


2-35


Step Procedure

3 Check to make sure that the ODU and the brackets are fixedfirmly,

4 Mount the antenna to the pole,

5 Connect the waveguide between the ODU and antenna,


2-36


Step Procedure

WAVEGUIDE CONNECTION TYPE ODU

6 Mount the waveguide to the ODU and fix with four bolts,

Note: Be careful not to damage the O-ring.

BOLT (M4)SPRING WASHER

WASHER O-RING

WAVEGUIDEWITH PBR( ) FLANGE


2-37


Step Procedure

ANTENNA DIRECT MOUNTING TYPE ODU

7 Mount the attachment with adapter to the ODU bracketusing ten bolts (attached to the PBR adapter),

ATTACHMENT

BOLT (M5 ×10)

SPRING WASHER

WASHER

ODU BRACKET

PBR ADAPTER


2-38


Step Procedure

8 Loosen the eight nuts and remove two U-bolts from ODUbracket as shown below,

9 Mount the ODU bracket to the pole with two U-bolts,Note: The diameter of the pole is from 48.5 to 114.5 millimeters.

U-BOLTODU BRACKET

NUT

ODU BRACKET

U-BOLT

POLE

FLAT WASHERSPRING WASHER

THIN NUT (M10)THICK NUT (M10)


2-39


Step Procedure

10 Mount the ODU to the ODU bracket with the four attachedbolts (Align the guide pin on the ODU and the guide holes onthe bracket),

Note: Be careful not to damage the O-ring.

11 Check to make sure that the ODU and the ODU bracket arefixed firmly,

ODU BRACKET

Antenna direct mounting type ODU with NEC special flange.

O-RING(Note)

GUIDE PIN


2-40


Step Procedure

12 Mount the waveguide to the ODU with four bolts,

Note: Be careful not to damage the O-ring attached to the PBR adapter.

BOLT (M4)SPRING WASHER

WASHER O-RING

WAVEGUIDEWITH PBR( ) FLANGE


2-41


Step Procedure

13 Mount the waveguide (WG) and taper WG to the antennaand fix the flexible WG, taper WG and antenna with screws.

Freq. Band

Antenna Flange Taper WG WG Taper WG Adapter

Flange

11 GHz PDR100 PDR100-PDR100 PDR100

13 GHz PBR120 UBR120 – PBR140 UBR140-UBR140 PBR140

15 GHz PBR140 UBR140-UBR140 PBR140



26 GHz PBR220 UBR220-UBR220 PBR220 – UBR260 PBR260


ANTENNA

To ODU

TAPER WG(26 GHz Band only)

SCREW

Note: The flange type between Antenna and waveguide(WG) must be matched. If necessary, a suitable WGflange transition must be adapted. Refer to thecombination example.

TAPER WG(13 GHz Band only)

WG


2-42


Step Procedure

Connection Between Antenna and ODU with Waveguides

ODU

ANTENNA

WAVEGUIDE


2-43

2.4.2 Demounting

To demount ODU (if necessary), use the following procedure.

Chart 2-9 ODU Demounting

Step Procedure

1 Remove the four (or six) fixed bolts from the ODU,

2 Then demount the ODU.


2-44

2.5 Cable Termination

In this section, list of tools and material and the method for cabletermination method are described. The following cables are described forreference.

• D-sub connector (refer to Chart 2-10)*• N-P connector of the L angle type (refer to Chart 2-11)• N-P connector of the straight type (refer to Chart 2-12)• Molex 5557-04R connector (refer to Chart 2-13)

Note: * Use D-sub connectors of less than 16 mm on height asillustrated below.

The necessary tools and materials are summarized in Table 2-3.

HEIGHT

D-SUB CONNECTOR

Table 2-3 Tools and Material List

No. NAME REMARKS

1 Soldering Iron

2 Solder

3 Knife

4 Measure

5 Wire Stripper

6 Adjustable Wrench

7 Hand Crimping Tool

CL250-0012-2/CL250-0013-5

For D-Sub connector

57026-5000/57027-5000

For Molex connector


2-45

Chart 2-10 Terminating Supervisory Cables with D-Sub Connector

Step Procedure

1 Strip back the cable sheath, taking care not to damage thebraided shield.

2 Fold back the braided shield (do not separate the strands)and trim it as shown.

3 Remove the insulation over a length of 4 mm from the end ofthe wire.

CONFORMABLEWIRE SOCKET CONTACT

AWG#20-24 :CD-PC-111

AWG#24-28 :CD-PC-121

50 mm

CABLE

WIRE

WIRE4 mm


2-46


Step Procedure

4 Insert the cable into the socket contact.

5 The cable should be fitted so that insulation and bare wireare arranged as shown.

6 Insert the socket contact into the hand crimping tool.

CONFORMINGWIRE SOCKET CONTACT

AWG#20-24 :TC-CD-111

AWG#24-28 :TC-CD-121

WIRE SOCKET CONTACT

HAND CRIMPING TOOL(HRS TC-CD-111/TC-CD-121)


2-47


Step Procedure

7 Recheck that the wire position is as shown in step 5 beforecrimping the socket contact (see illustration at below).

8 Wind the metallic shield tape on the braided shield.

WIRE SIDE

SOCKET CONTACT

WIRE

METALLIC SHIELD TAPE


2-48


Step Procedure

9 Set the cable into the plug case as shown in figure. Then, fitthe cable using the cable clamper and two screws.

CABLE CLAMPER

PLUG CASE


2-49


Step Procedure

10 Referring to circle A, fix the drain wire with screw.

11 Referring to circle B, insert each wire to the specifiedposition (refer to Table 2-4). Insert the socket contacts intothe upper and lower row positions while taking care that thesocket contacts are inserted the right way round.

CIRCLE A

SCREW

DRAIN WIRE

CIRCLE B


2-50


Step Procedure

12 Fix the plug case with two screws, as shown in the figure.

SCREW

PLUG CASE


2-51

Chart 2-11 Terminating Coaxial (IF Signal) with N-PConnector (L Angle Type)

Step Procedure

1 First fit the tying metal, washer and gasket on the cable.

2 Strip back the cable sheath, taking care not to damage thebraided shield, and fit the clamp.

3 Fold back the braided shield (separating the strands of thebraid) and trim it.

Note: Pay attention not to damage the plait.

4 Insert the ferrule.

GASKET WASHER TYING METAL

CABLE

CLAMP

9 mm

FERRULE


2-52


Step Procedure

5 Fit the bush.

6 Cut the aluminium foil and inner insulator away along thebush and retain the inner conductor.

7 Taper the edge of the center conductor using a file as shownin the enlarged view below.

BUSH

Note: Pay attention not to letprotrusions and indents occur.


2-53


Step Procedure

8 Mount the contact onto the center conductor and mount theinsulator onto the contact.

9 Insert the cable into the shell.

10 Tighten the tying metal with wrench point by wrench(Tighten with torque 4 to 10 N·m)

INSULATOR CONTACT

WRENCH POINT

LESS THAN 0.1 mm(USUALLY NO GAPS)


2-54

Chart 2-12 Terminating Coaxial (IF Signal) Cables with N-PConnector (Straight Type)

Step Procedure

1 First fit the lock nut, washer and gasket on the cable asshown.

2 Strip back the cable sheath, taking care not to damage thebraided shield, and fit clamp A.

3 Fold back the braided shield (separating the strands of thebraid) and trim it.

4 Cut away the insulation from the center conductor and fitclamp B. Be sure not to cut or scratch the conductor whilestripping the insulation.

CABLE

LOCK NUT WASHER GASKET

CLAMP A

27 mm

4.0 mm CLAMP B

CUT


2-55


Step Procedure

5 Cut the center conductor. Taper the end of the centerconductor using a file as shown in the enlarged view below.

6 Mount the center contact onto the center conductor asshown.

7 Mount the insulation onto the center contact.

12 mm

1.5 mm

CENTER CONTACT

TAPERING SIDE

INSULATION


2-56


Step Procedure

8 Insert the cable into the connector shell.

9 Tighten the lock nut.

CONNECTOR SHELL

LOCK NUT

Less than 1.5 mm


2-57

Chart 2-13 Terminating Power Supply Cables with Molex Connector

Step Procedure

1 Remove 3.0 to 3.5 mm of insulation.

CABLE

AWG#16

Note: Do not bend this part.

POWER SUPPLY CABLE

3.0 to 3.5 mm

FOR 48 V, 1A


2-58


Step Procedure

2 Set the socket contact to position ➀ or ➁ of the handcrimping tool.

3 Squeeze the handle of the hand crimping tool, insert cableinto socket contact.

4 The cable should fit, so insulation and bare wire arearranged as shown.

5 Squeeze the handle of the hand crimping tool until theratchet is released.

HAND CRIMPING TOOL57026-5000 Molexor 57027-5000( )

HAND CRIMPINGTOOL TYPE

57026-5000

57027-5000

OUTSIDE DIAMETER OF CABLE

φ 1.5 to 1.8φ 1.8 to 2.2φ 2.3 to 2.6φ 2.6 to 3.1

SETPOSITION

21

12

12

INSULATION BARREL WIRE BARREL

WIRE STRIP LENGTH


2-59


Step Procedure

6 Insert the socket contacts into the power connector till theylock.

-48 V (or 0 V)

0 V (or +48V)POWER CONNECTOR


2-60

2.6 LAN Cable Selection (Optional)

If the LAN Card is used in the system, setting of the MDI – MDI-X switchis required. The switch setting depends on whether the LAN cable thatwill be attached to the 10BASE-T connector is a straight type or crosstype.

Signal name of 10BASE-T connector is as follows:

SET POSITION SET POSITIONMDI MDI-X

Pin1 TX + RX +2 TX − RX −3 RX + TX +6 RX − TX −

FRONT

MDI

MDI-X

LAN CARD

10BASE-T CONNECTOR

Switching Function Set Position Remarks

Selection for LAN cable When a straight cable is connected to the 10BASE-T connector on the LAN Card, switch is set to MDI position.

In case of straight cable is used, setMDI-MDI-X switch to:

SET POSITION• HUB and Router MDI• PC MDI-X

In case of cross cable is used, setMDI-MDI switch to:

SET POSITION• HUB and Router MDI-X• PC MDI

When a cross cable is connected to the 10BASE-T connector on the LAN Card, switch is set to MDI-X position.


2-61

2.7 Cable and Terminal Connections

Set up as in Fig. 2-5 referring to the following connecting method.

(a) Baseband signal cable(s)Align the IEC169-13 type connector guide groove to the otherconnector guide ridge and turn the connector cap clockwise fullyuntil it is locked firmly.

(b) IF signal cableConnect the connector correctly and tighten it by turning thetightening ring clockwise.

(c) Supervisory cable(s)Connect the D-sub connector correctly and fix it with two screws(#4-40).

(d) Power supply cableConnect the Molex connector correctly.

Table 2-4 and Table 2-5 show the pin assignment of the interface terminalsand jacks in the IDU and ODU.

INSTA

LLATIO

NR

OI-S03834

2-62

Fig. 2-5 1+0 Connections of IDU and ODU

N-P CONNECTOR

AMP CONNECTOR

POWERSUPPLY

DATA TERMINALEQUIPMENT

IEC169-13 CONNECTOR/FC/PC OPTICAL CONNECTOR*

IEC169-13 CONNECTOR/FC/PC OPTICAL CONNECTOR*

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

MODULAR CONNECTOR

D-SUB CONNECTOR

D-SUB CONNECTOR

D-SUB CONNECTOR

EXTERNALEQUIPMENT

IDU(OTHER ROUTE)

LCT

PNMT

MODULAR CONNECTOR

MODULAR CONNECTOR

MODULAR CONNECTOR

ODU

IDU(OTHER ROUTE)

MODULAR CONNECTOR

MODULAR CONNECTOR

PNMSMODULAR CONNECTOR **

EXTERNAL EQUIPMENT (WS) D-SUB CONNECTOR

Notes:1. * In case of electrical interface. For the optical interface, FC/PC type optical connector is used.2. **Either (V.11 or 10 Base-T) can be selected.

13-38 GHz BAND ODU

6/7/8 GHz BAND ODU

IF IN/OUT

FG (M5)


2-63

Table 2-4 Interface Terminals and Jacks for IDU


IF IN/OUT (N-J connector)

TX IF signal output to ODU and RX IF signal input from ODU

Warning: 1. Do not connect other cables to this connector,because the – 43 V DC power is superimposedon it.

2. Do not touch the connector before turning offpower switch.

STM1 IN(IEC169-13 (1.6/5.6) Connector: Electrical)(FC/PC: Optical)

Synchronous transport module (STM) -1 data input

STM1 OUT(IEC169-13 (1.6/5.6) Connector: Electrical)(FC/PC: Optical)

STM-1 data output

WS IN/OUT(D-Sub Connector, 9 Pins)

Wayside signal input/output

Pins 1 IDT (+) (Input Data)

Pins 2 Ground

Pins 3 ODT (+) (Output Data)

Pins 4 Ground

Pins 5 Ground

Pins 6 IDT (–)*

Pins 7 Ground

Pins 8 ODT (–)*

Pins 9 Ground

Note: * When using the 2.048 Mbps/75Ω WS interface isapplied, these pins are used for ground.

10BASE-T (on LAN Card)(Modular Connector)

Local area network (LAN) data input/output (For details, refer to 2.6 (LAN Cable Selection) in chapter 2)

MDI MDI-X

Pin 1 TX + RX +

Pin 2 TX − RX −

Pin 3 RX + TX +

Pin 6 RX − TX −


2-64

PNMT(Modular Connector)

Pasolink network management terminal (PNMT) data input/output (RS-232C)

Pin 1 PNMT DCD

Pin 2 PNMT TXD

Pin 3 PNMT RXD

Pin 4 PNMT DRS

Pin 5 Ground

Pin 6 PNMT DTR

Pin 7 PNMT CTS

Pin 8 PNMT RTS

LCT(Modular Connector)

Local craft terminal (LCT) data input/output (RS-232C)

Pin 2 LCT TXD

Pin 3 LCT RXD

Pin 5 Ground

Pin 7 LCT CTS

Pin 8 LCT RTS


Engineering orderwire (EOW)1 signal extension terminal for back-to-back connection between IDUs (VF)






Pin 6 Ground


Pin 8 Ground


EOW2 signal extension terminal for back-to-back connection between IDUs (VF)






2-65




Pin 6 Ground


Pin 8 Ground


Pasolink network management system (PNMS) data input/output (RS-485)

Pin 1 TXD +/RXD+

Pin 2 TXD−/RXD−

Pin 3 RXD +/TXD +

Pin 4 CK +

Pin 5 CK −

Pin 6 RXD−/TXD−

Pin 7 Ground

Pin 8 Ground


PNMS data input/output (RS-485)

Pin 1 TXD+/RXD+

Pin 2 TXD−/RXD−

Pin 3 RXD+/TXD+

Pin 4 N.C

Pin 5 N.C

Pin 6 RXD−/TXD−

Pin 7 Ground

Pin 8 Ground

PNMS V11(Modular Connector)

PNMS data input/output (V11)

Pin 1 NMS TXD +

Pin 2 NMS TXD −

Pin 3 NMS RXD +




2-66

Pin 6 NMS RXD −

PNMS LAN(Modular Connector)

PNMS data (LAN) input/output

Pin 1 NMS TD +

Pin 2 NMS TD −

Pin 3 NMS RD +

Pin 6 NMS RD −

SC IN/OUT(D-sub Connector, 37 Pins)

Service channel data input/output

Pins 1 (+) and 20 (–) OH1 (V.11-1) IDT

Pins 2 (+) and 21 (–) OH1 (V.11-1) ICK

Pins 3 (+) and 22 (–) OH1 (V.11-1) IFP

Pins 4 (+) and 23 (–) OH1 (V.11-1) DDT

Pins 5 (+) and 24 (–) OH1 (V.11-1) DCK

Pins 6 (+) and 25 (–) OH1 (V.11-1) DFP

Pins 8 (+) and 27 (–) OH2 (V.11-2) IDT

Pins 9 (+) and 28 (–) OH2 (V.11-2) ICK

Pins 10 (+) and 29 (–) OH2 (V.11-2) IFP

Pins 11 (+) and 30 (–) OH2 (V.11-2) DDT

Pins 12 (+) and 31 (–) OH2 (V.11-2) DCK

Pins 13 (+) and 32 (–) OH2 (V.11-2) DFP





Pins 7, 14, 19, 26 and 33 Ground

ALM(D-sub Connector, 25 Pins)

Alarm output




2-67


Maintenance alarm outputBetween Between



Power alarm outputBetween Between



CPU alarm outputBetween Between



ODU alarm output**Between Between



IDU alarm output**Between Between



BER alarm output**Between Between



Loss of signal (LOS) of STM-1 alarm output**Between Between


ALM/AUX(D-sub Connector, 25 Pins)

Alarm and transmission network surveillance auxiliary input/output

Pins 1 (+) and 14 (−) House Keeping (HK)1 alarm inputNormal state : OpenAlarm/Event state : Closed




2-68

Pins 2 (+) and 15 (−) HK2 alarm input Normal state : Open

Alarm/Event state : Closed










House keeping (HK)1 control output** or equipment alarm output***

Between BetweenPins 7 and 20 Pins 7 and 21

Normal state : Closed OpenAlarm state : Open Closed










Pin 13 Ground

FG Frame ground

G Wrist band ground




2-69

Notes: 1. ** This is a factory setting (default setting).2. *** These alarm items can be set by the LCT.

2.8 Frame Grounding

In mounting the IDU and ODU, perform frame grounding. The location ofthe frame grounding in each IDU and ODU is shown in Fig. 2-6, and theconnection for frame grounding is shown in Fig. 2-7.

Note: Connect the Frame Ground (FG) terminal on the IDU to themounting rack with the earth cable. In addition, connect themounting rack to the indoor earth terminal with the earth cableand connect the FG terminal on the ODU to the ground (refer toFig. 2-7).

SEL V(Molex M5557-4R Connector, 4 Pins)

–36 V to –60 V DC (or +36 V to +60 V DC)/–20 V to –60 V DC (or +20 V to +60 V DC) power input

Pins 1 and 3 0 V (or +48 V)/0 V (or +24 V)

Pins 2 and 4 –48 V (or 0 V)/–24 V (or 0 V)



Table 2-5 Interface Terminals and Jacks for ODU


IF IN/OUT(N-J Connector)

TX IF signal input and RX IF signal output

Warning: Do not disconnect the coaxial cable while theIDU is powered on.

FG Frame ground

RF IN/OUT(6/7/8 GHz : SMA)(11 GHz : PBR-100)(13/15 GHz : PBR-140)(18/23 GHz : PBR-220)(26 GHz : PBR-260)(38 GHz : PBR-320)

RF signal input/output from/to antenna


2-70

Fig. 2-6 Location of Frame Ground

FRONT VIEWIDU

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

FRAME GROUND TERMINAL

FRONT VIEW11-38 GHz ODU

ODU

IFL FG RX LEVMON

BOTTOM VIEW6/7/8/ GHz ODU

FG

FG


2-71

Fig. 2-7 Connection for Frame Grounding (1/2)

EARTH LINE

INDOOR EARTH TERMINAL

IDU

ODU

COAXIAL CABLE

PROTECT AREA

LIGHTNING RODOUTDOOR EARTH TERMINAL(EXISTING OR CUSTOMER SUPPLIED)

EARTH LINE

GROUNDLEVEL

Cautions: 1. Install the ODU within the area protected by lightning rod.2. To avoid surge currents caused by lightning circulating in the equipment

earth system, connect the equipment earth system (frame ground) toground of the lightning rod at ground level.

RACK


2-72

Fig. 2-7 Connection for Frame Grounding (2/2)

LIGHTNING ROD

EARTH LINE

ODU

FG

EARTH LINE*

COAXIAL CABLE

INDOOR EARTH

GROUNDLEVEL

IDU

TERMINAL

(Grounding-resistance:less than 10 Ω)

Note: * NEC recommends that the frame ground of ODU should be connected to the earth line as shown above.EP : Earthing Point of towerFG : Frame Ground terminal

ISOLATED FROMTOWER(Grounding-resistance:less than 10 Ω) (Grounding-resistance of tower:

less than 10 Ω)

Grounding cable for ODU should be connected to the nearest EP of the tower.

EP

RACK


2-73

2.9 Waterproof Protection

After cable connection, the following parts should be wrapped by self-bonding tape for waterproof (see Fig. 2-8).

Fig. 2-8 Location of Connector for Waterproof (1/2)

Note: The self-bonding tape should be prepared bycustomer.

RF IN/OUT

IF IN/OUT

CABLE

SELF-BONDING TAPE

ODU

CABLE

6-8 GHz Band ODU


2-7474 pages

Fig. 2-8 Location of Connector for Waterproof (2/2)

Note: The self-bonding tape should be prepared by customer.

This part should be wrapped by self-bonding tape for waterproof.

ODU

IF CABLE

SELF-BONDING TAPE

ODU

IFL CONNECTOR

SELF-BONDING TAPE

ODU

IF CABLE

IN CASE OF L ANGLE


ROI-S03834 INITIAL LINE UP

3-1

3. INITIAL LINE UP

This paragraph provides instructions for the initial lineup of theequipment. Included is information on start-up, shut-down, IDU and ODUequipment setting, antenna orientation and lineup test for the equipment.

If orderwire communication is required, connect the X0818A OW/RXLEV Monitor to the ODU. The OW/RX LEV Monitor operates on a drybattery (6F22/9V).

Notes: 1. Insert the battery with correct polarity.

2. When the OW/RX LEV Monitor will not be used for extendedperiods of time, remove the battery to avoid damage frombattery leakage and corrosion.

3. Set the OW switch to ON when the orderwire will be used.When the OW indicator is not lit even though the OW switchis set to ON, replace the battery since the battery hadbecome weak.

3.1 Start-up

The procedure for starting the equipment is shown in Chart 3-1.

Warning: 1. After turning ON the equipment, wait at least 10seconds before turning it OFF again. Repeatedlyturning the power ON and OFF with in a short intervalmay cause the IDU to fail.

2. While the power supply is ON, do not remove/connectthe power supply connector. Otherwise, the DC-DCCONV may fail.

3. The -43 V DC power is superimposed on the centreconductor of the IF cable between the IDU and theODU. If the IF cable is kept short-circuited for aprolonged period, the DC-DC CONV may fail.

INITIAL LINE UP ROI-S03834

3-2

Chart 3-1 Start-up

Caution: Do not apply to the equipment a voltage that varies sharply.The equipment may operate wrongly.

Apparatus:Suitable ScrewdriverDigital Multimeter

Step Procedure

Note: The ODU is power by the IDU.

1 Check that the SEL V input voltage is between –36 to –60 V(or +36 to +60 V)/−20 to −60 V (or +20 to +60 V) with thedigital multimeter, before connecting the power connector asshown below to the IDU,

2 Check that the IF cable between the IDU and the ODU isconnected,

3 Turn on the PWR switch on the IDU (see Fig. 3-1),

4 Confirm that the PWR indicator on the IDU is lighted.

POWER SUPPLY

24 3

1 0 V (or +48 V)/0 V (or +24 V)

–48 V (or 0 V)/–24 V (or 0 V)


3-3

Fig. 3-1 Power Switch and Indicator Location

3.2 Shut-down

The shut-down procedures for the equipment is shown in Chart 3-2.

Warning: After turning ON the equipment, wait at least 10 secondsbefore turning it OFF again. Repeatedly turning the powerON and OFF with in a short interval may cause the IDU tofail.

Chart 3-2 Shut-down

Step Procedure

1 Turn off the PWR switch on the front of the IDU (see Fig. 3-1).

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

PWRPWR SWITCH

ALM

ODU


3-4

3.3 Initial Setting

The setting of the IDU/ODU is performed by the LCT according to Table3-1.

The communication/serial port settings of the personal computer used aslocal craft terminal (LCT) is listed below.

• Bits per second: 19200• Data bits: 8• Parity: None• Stop bits: 1• Flow control: Hardware• Emulation: VT100 Video Terminal• Transmission: Add CR at end of line : No

(send line ends with line feeds:No)*Local echo : No(Eco typed characters locally : No)*

• Receiving: CR: No(Append line feeds to incoming line feeds: No)*Return on the right edge: Yes(Wrap lines that exceed terminal width : yes)*Force incoming data to 7-bit ASCIII: No

* Windows Hyper Terminal settings.Microsoft and Windows are either registered trademark ofMicrosoft Corporation in the United States and other countries.

These display screens are shown in Fig. 3-2.Notes:1. For operating the LCT properly, do not use the arrow keys

“→, ↑ , etc.” (as generates the ESC code) instead of the ESCkey.

2. The operation check by Hyper Terminal attached to Windowsis performed by Windows 95/98. When using the HyperTerminal mode of Windows 2000, the characters may not bedisplayed chorrectly.

The cable connector pin assignments are shown in Fig. 3-3. The length of

Table 3-1 Initial Setting Items

Item Remarks

1. System Configuration Setting Chart 3-3

2. Date and Time Setting Chart 3-4

3. Provisioning Setting Chart 3-5

4. Relay/House Keeping Setting Chart 3-6


3-5

the RS-232C cable between the personal computer and IDU should be lessthan 15 m.

Fig. 3-2 Display Screens

Note: Please refer to the above screenshots as an examplefor the Hyper Terminal Setting.


3-6

Fig. 3-3 RS-232C Cable Pin Assignment

Fig. 3-4 LCT Setup

SIGNALNAME

PINNo.

87654321

RTSCTSDTRGNDDSRRXDTXDCD

LCT

SIGNALNAME

PINNo.

87654321

CTSRTSDTRGNDDSRTXDRXDDCD

IDU SIDE LCT CONNECTOR

MODULAR CONNECTORD-SUB CONNECTOR(9 Pins)

LCT

RS-232C CABLE

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

ODU

LCT


3-7

Chart 3-3 System Configuration Setting

This chart describes the procedure for setting the system configuration.The items to be set are as follows:

• Equipment Configuration• RF Frequency• TX Power Control• Frame ID• Main Interface

Setting of the system configuration should be performed in followingorder.

Step Procedure

1 Referring to Fig. 3-4, connect the RS-232C cable betweenthe LCT and the IDU,

2 Open the Terminal software (eg; Hyper Terminal),

3 Enter Login name “Admin” and press the “Enter” key,

4 Enter password “12345678” and press the “Enter” key,

Note: The factory setting is “12345678”. For procedures tochange the password, refer to the Appendix inMaintenance section.

Login : AdminPassword : ********

--- NEC SDH RADIO VER. X.XX.XX --- 0. Logout 1. Alarm / Status 2. Performance Monitor 3. Provisioning Data 4. System Configuration 5. Inventory Data 6. Relay / House Keeping 7. MaintenanceEnter Selection :


3-8


Step Procedure

5 Press the “4” key for setting the System Configuration andpress the “Enter” key,

Following is an explanation of each item under the SystemConfiguration menu.

• Display Radio Equipment ConfigurationSelects to display radio equipment configuration.

• Setup Radio Equipment ConfigurationSelects to set radio equipment configuration.

6 Press the “2” key for setting the Equipment Configurationand press the “Enter” key,

It is necessary to set frequencies of the ODU. When thetransmitting frequency is set, the receiving frequency isautomatically set. For 6/7/8 GHz band ODU, the TXfrequency setting must be the same as that indicated on thelabel attached on the side of the ODU. For the 11-38 GHzband ODU, the actual transmit frequency setting that isentered should be within the TX frequency band of the ODU(see Appendix in Description section). For 11-38 GHz bandODU used in 32 QAM system, the frequency setting shouldbe at least + 21 MHz away from the band’s “Start” frequencyand at least − 21 MHz away from the band’s “Stop”frequency. For 11-38 GHz band ODU used in 128 QAMsystem, the frequency setting should be at least + 12 MHzaway from the band’s “Start” frequency and at least − 12MHz away from the band’s “Stop” frequency. The band’s“Start” and “Stop” frequency are displayed on the LCT.

Enter Selection : 4

--- System Configuration --- 1. Display Radio Equipment Configuration 2. Setup Radio Equipment ConfigurationEnter Selection :

--- RF Frequency ---Current TX Frequency = XXXXX.XXX[MHz]Current RX Frequency = XXXXX.XXX[MHz]Start TX Frequency = XXXXX.XXX[MHz]Stop TX Frequency = XXXXX.XXX[MHz]Shift Frequency = XXXXX.XXX[MHz]

Enter TX Frequency ([RET] = No Change) :


3-9


Step Procedure

7 After setting, press the “Enter” key for setting the TX PowerControl,

ATPC : Automatic Transmission Power ControlMTPC : Manual Transmission Power Control

8 After setting, press the “Enter” key for setting the FrameID,

The frame ID is set in order to discriminate the signal. As asignal with a different ID cannot be received, the ID of theopposite station should be the same. The number of IDswhich can be set up is eight; ID1 through ID8.

--- TX Power Control --- 1. MTPC 2. ATPCCurrent Setting : 1Enter Selection ([RET] = No Change) :

--- Frame ID --- 1. ID1 2. ID2 3. ID3 4. ID4 5. ID5 6. ID6 7. ID7 8. ID8Current Setting : 1Enter Selection ([RET] = No Change) :


3-10


Step Procedure

9 After setting, press the “Enter” key for setting the MainInterface,

The interface requirement of the STM-1 main signal isselected from the following three types.STM-1 (Electrical) : Selects this when the G7897 150M

INTFC module is used as maininterface card.

STM-1 (Optical) : Selects this when the G7898 OPT INTFCmodule is used as main interface card.

STM-1 (Optical : Single Fiber) : Selects this when G7899OPT INTFC module is used(Mono fiber type opticalmodule).

10 After setting the System Configuration, proceed to Chart 3-4 for the time setting.

--- Main Interface --- 1. STM-1 (Electrical) 2. STM-1 (Optical) 3. STM-1 (Optical: Single Fiber)Current Setting : 1Enter Selection ([RET] = No Change) :


3-11

Chart 3-4 Date and Time Setting

This chart describes the procedure for setting date and time. When theIDU is turned off for an extended period (i.e. approx. 1 week), theequipment time setting could have been cleared. In such case, verify andre-enter the time setting after turning on the IDU.

Step Procedure

1 Press the “ESC” key to go back to the following menu,

2 Press the “7” key for Maintenance and press the “Enter”key,

3 Press the “4” key for setting the Set Calendar and press the“Enter” key,

Password : ********


Enter Selection : 7

--- Maintenance --- 1. MAINT Mode (OFF) 2. Control 3. Reset CPU 4. Set Calendar 5. Password Setting 6. Program DownloadEnter Selection : 4

--- Set Calendar ---Enter Year : 2001Enter Month : 2Enter Day : 28Enter Hour : 18Enter Min : 20Enter Sec : 40

Success !!


3-12


Step Procedure

4 Set all items according to display of the LCT,

5 After setting the time, proceed to Chart 3-5 for theProvisioning setting.

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3-13

Chart 3-5 Provisioning Setting

This chart describes the procedure for setting the provisioning data.Setting items are as follows:

• ALS• BER Threshold• Sub Interface• OH Assignment• MTPC TX PWR• ATPC Range• RX Threshold• Additional ATT• ODU ALM MODE

Step Procedure


2 Press the “3” key for Provisioning Data and press the“Enter” key,

Following is an explanation of each Provisioning item.• Display Current Data

Selects to display current provisioning data.• Set Provisioning Data

Selects to set provisioning data.

Password : ********


--- Provisioning Data --- 1. Display Current Data 2. Set Provisioning DataEnter Selection :

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3-14


Step Procedure

The factory settings are listed in the following table. To changethese settings, proceed to the following step.

Notes: 1. * Applies only to ATPC.2. In the factory setting, the TX output power is 23 (or 20)

dB lower than the standard level since the MTPC TXPWR is set to −23 (or −20) dB. If the standard outputlevel is required, set the MTPC TX PWR to 0 dB.

3. Provisioning items that cannot be set for the selectedoperating mode are not displayed on the LCT.

ItemFactory Setting


ALS (OPT INTFC only) Disable Disable

ALS DELAY TIME 60 sec. 60 sec.

HIGH BER 3 × 10-4 3 × 10-4

LOWBER FOR RX SW 3 × 10-7 3 × 10-7

E-BER (DMR) 1 × 10-4 1 × 10-4

SD (DMR) 1 × 10-7 1 × 10-7

E-BER (MUX) 1 × 10-4 1 × 10-4

SD (MUX) 1 × 10-7 1 × 10-7

SUB INTERFACE Not Used Not Used

OH ASSIGNMENT EasyVF-1 : DSC1VF-2 : DSC2V11-1 : DSC3Co.directionalV11-2 : DSC4Co.directional

EasyVF-1 : DSC1VF-2 : DSC2V11-1 : DSC3Co.directionalV11-2 : DSC4Co.directional

MTPC TX POWER –23 dB –20 dB

ATPC Range (max. ~ min.) 0 dB to –10 dB 0 dB to –10 dB

RX THRESHOLD –55 dBm –55 dBm

ADDITIONAL ATT 0 dB 0 dB

ODU ALM MODE* HOLD HOLD

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3-15


Step Procedure

3 Press the “2” key and press the “Enter” key,

Note: Setting items displayed on the LCT depend on settingcondition of “System Configuration”.

4 Press the “1” key for setting the ALS and press the “Enter”key,

ALS sets Enable/Disable of automatic laser shutdown (ALS)function.

Note: Applies only to optical interface.

Enable : When the ALS function is used.

Disable : When the ALS function is not used.Note: When the ALS function is enable, the ALS delay time

defines the delay time before the laser is emitted for 2seconds. The delay time can be set to 60, 180, or 300seconds.

5 After setting, press the “ESC” key to go back to menu shownin step 3,

--- Provisioning Data --- 1. Display Current Data 2. Set Provisioning DataEnter Selection : 2

--- Set Provisioning Data --- 1. ALS 2. BER Threshold 3. Sub Interface 4. OH Assignment 5. MTPC TXPWR 6. ATPC Range 8. RX Threshold 9. Additional ATT10. ODU ALM ModeEnter Selection :

--- ALS --- 1. Enable 2. DisableCurrent Setting : 2Enter Selection ([RET] = No Change) :

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3-16


Step Procedure

6 Press the “2” key for setting the BER Threshold and pressthe “Enter” key,

• High BER : Sets the threshold level for the Excessive-BERalarm of the Radio section. Sets the thresholdlevel of BER before switchover of RX SW in1+1 mode. There are three settable values;3×10-4, 3×10-5 and 3×10-6.Note:High BER is monitored in the No.1 and

No.2 channels, respectively.• Low BER for RXSW : Sets the threshold level for the signal

degrade (SD) alarm of Radio section.Used for RX SW switchovercondition in the 1+1 mode. There areseven settable threshold values;3×10-6, 3×10-7, 3×10-8, 3×10-9,3×10-10, 3×10-11 and 3×10-12.

• E-BER (DMR) : Sets the threshold level for the Excessive-BER alarm of the Radio section. Sets thethreshold level of BER after switchover ofRX SW in 1+1 mode. There are threesettable threshold values;1×10-3, 1×10-4 and 1×10-5.

• SD (DMR) : Sets the threshold level for the signal degrade(SD) alarm of the Radio section. Sets thethreshold level of BER after switchover of RXSW in 1+1 mode. There are four settablethreshold values;1×10-6, 1×10-7, 1×10-8 and 1×10-9.

--- BER Threshold --- 1. High BER 2. Low BER for RXSW 3. E-BER (DMR) 4. SD (DMR) 5. E-BER (MUX) 6. SD (MUX)Enter Selection :

ROI-S03834

3-17


Step Procedure

• E-BER (MUX) : Sets the threshold level for the Excessive-BER alarm of the input STM-1 signal fromMUX section. There are three settablethreshold values;1×10-3, 1×10-4 and 1×10-5.

• SD (MUX) : Sets the threshold level for the signal degrade(SD) alarm of the input STM-1 signal fromMUX section. There are four settable thresholdvalues;1×10-6, 1×10-7, 1×10-8 and 1×10-9.

7 Press the “ESC” key to go back to the menu shown in step 3,

8 Press the “3” key for setting the Sub Interface and press the“Enter” key,

Sub interface sets when using an optional interface card.WS INTFC : Selects this when the WS INTFC module is

used (Applies only to 32 QAM system).There are three available WS interface types:

• 2.048 Mbps unbalanced• 2.048 Mbps balanced• 1.544 Mbps (AMI or B8ZS)

Setting should be selected in accordance withWS INTFC module.

LAN Card : Selects this when the LAN Card is used. Whenusing a LAN function (10BASE-T interface) inthe equipment of 128 QAM, the transmissionway used should be selected in the OHAssignment item as follows:

• 32 QAM system• RFCOH of 2.048 Mbps

• 128 QAM system• DSC or RSOH (E1/F1) of 64 Kbps

--- Sub Interface--- 1. WS INTFC 2. LAN Card 3. Not Used : 0Current Setting : 0Enter Selection :

ROI-S03834

3-18


Step Procedure

Not Used : When the optional interface card is not mountedor the function of interface is no required, this isselected.


10 Press the “4” key for setting the OH Assignment and pressthe “Enter” key,

OH Assignment sets Used/Not Used for service channel andsignal assignment are carried out. The service channel can beused as follows:VF: 2 channelsV 11: 2 channels

Notes: 1. When LAN CARD is used in 128 QAM system,this setting is necessary. LAN CARD should beset in customize mode.

2. When LAN CARD is used in 32 QAM system, thissetting is not necessary.

Easy : When Easy is selected, the same setting as factorysetting is used. Here, setting of the LAN card can notbe performed.

Customize : When customize is selected it allows to selectfour out of the eight available channels andassign them to any of the DSC1 through 4,RSOH E1 (MUX), F1 (MUX), E1 (DMR) andF1 (DMR).

--- OH Assignment --- 1. Easy 2. CustomizeCurrent Setting : 1Enter Selection ([RET] = No Change) :

PASOLINK+MUX PASOLINK+ MUX

E1 (MUX)F1 (MUX)

E1 (MUX)F1 (MUX)

DSC 1-4E1 (DMR)F1 (DMR)

ROI-S03834

3-19


Step Procedure

Selection of Co-Directional of Contra-directional is available for V11 signal (optional).


12 Press the “5” key for setting the TX PWR and press the“Enter” key,

MTPC TX PWR sets the transmission power in MTPCoperation. If the attenuation is set to 0 dB, the maximumoutput power is obtained. Setting is available in the range of:• 32 QAM: −23 dB to 0 dB• 128 QAM: −20 dB to 0 dBThe level is not indicated in the ATPC mode.


14 Press the “6” key for setting the ATPC Range and press the“Enter” key,

ATPC Range sets the maximum or minimum transmissionpower during ATPC operation. If the ATPC Maximum PWRis set to 0 dB, the maximum output power is obtained. In theMTPC mode, this menu will not appear.

Note: Example of ATPC setting.Where ATPC MAXIMUM PWR of ATPC Range is setto 0 dB, ATPC MINIMUM PWR is set to -10 dB andRX Threshold to -60 dBm. In this case, if RX level issmaller than -60 dBm, monitor/control is performedwith the interval of 8 msec. RX level is monitored in 1dB step, and TX output is controlled in 1 dB step.However, a fixed hysteresis of 5 dB referred to the RXThreshold is implemented for ATPC operation.

--- MTPC TX PWR ---Current (-25 to 0dB) : -15Enter Selection ([RET] = No Change) :

--- ATPC Maximum PWR ---Current (-25 to 0dB) : 0Enter Selection ([RET] = No Change) :

--- ATPC Minimum PWR ---Current (-25 to [MAX]dB) : -10Enter Selection ([RET] = No Change) :

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3-20


Step Procedure

Example: If RX Threshold is set to -60 dBm, no outputcontrol is made unless the RX level goes below -60dBm or goes above -55 dBm, so that the receive level ismaintained within -60 to -55 dBm.

15 After setting, press the “ESC” key to go back to menu shownin step 3,

16 Press the “8” key for setting the RX Threshold and press the“Enter” key,

RX Threshold sets the threshold value of receiving level.Note: For details, refer to 2.4.4 (Automatic Transmitter

Power Control) of Chapter 2 in Description section.

17 Press the “ESC” key to go back to menu,

18 Press the “9” key for setting the Additional ATT and pressthe “Enter” key,

The additional ATT is a span attenuator that is used to reducethe transmit power like in cases where the transmission lengthis short. First, the transmit output power is adjusted bysetting the MTPC TX Power. If the MTPC TX Power settingis insufficient, then set the Additional ATT. The availablesetting range is from 0 to 5 dB.

-55 dBm

RX LEVEL

-60 dBm(RX THRESHOLD LEVEL)

5 dB(ATPCHYSTERESIS)

--- RX Threshold---Current (-55 to –30dBm) : -55Enter Selection ([RET] = No Change) :

--- Additional ATT ---Current (0 to 5dB) : 0Enter Selection ([RET] = No Change) :

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3-21


Step Procedure

Note: This function can not be used in 38 GHz band ODU. Donot set to any values other than 0 dB.


20 Press the “1”, “0” key for setting the ODU ALM Mode andpress the “Enter” key,

This item defines the ODU transmit power level whencommunication between IDU and ODU is lost. This settingis not used when the equipment is set for MTPC operationand is thus, not displayed.MAX Hold : Selects this to cause the ODU to transmit at the

ATPC Maximum PWR setting.MIN Hold : Selects this to cause the ODU to transmit at the

ATPC Minimum PWR setting.Hold : Selects this to cause the ODU to maintain the transmit

power at the time of failure.

21 After setting the Provisioning data, proceed to Chart 3-6 forthe optional relay house keeping setting, as required.Otherwise, press the “ESC” key to go back to the menushown in step 3.

--- ODU ALM Mode --- 2. MAX Hold 3. MIN Hold 4. HoldCurrent Setting : 3Enter Selection ([RET] = No Change) :

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3-22

Chart 3-6 Relay/House Keeping Setting

This chart describes the procedure for setting the parallel alarm output andthe status of House Keeping.

The procedure in this chart is to be performed, as required.

Step Procedure

1 Press the twice “ESC” key twice to go back to the followingmenu,

2 Press the “6” key for Relay/House Keeping and press the“Enter” key,

The relay configuration setting and alarm output selection isexplained below.

• Display Current StateSelects to display House Keeping current state.

Password : ********


Enter Selection : 6

--- Relay / House Keeping --- 1. Display Current State 2. Relay Configuration 3. Output ControlEnter Selection :

ROI-S03834

3-23


Step Procedure

3 Press the “2” key for setting the Relay Configuration andpress the “Enter” key,

• Relay ConfigurationA maximum of 11 relays can be defined to provide parallelalarm outputs. The alarms that would cause RL1 to RL3 tobe triggered are pre-assigned while the alarms that wouldcause RL4 to RL11 to be triggered can be selected for eachrelay. It is also possible to define RL8 to RL11 as HK CONToutputs instead of alarm outputs as shown in the table below.If RL8 to RL11 are not assigned as HK CONT outputs, theymay be used as alarm outputs (see Table 2-2, chapter 2 inOperation section). As shown in Table 2-2 (chapter 2 inOperation section), more than one alarm may be assigned toeach relay.

RL1 to RL11 are FORM C relays. In the normal or controloff condition, the COM and NC terminals of the relays form aclosed circuit and the COM and NO terminals from an opencircuit. In the alarm or control on condition, the COM andNC terminals of the relays form an open circuit and the COMand NO terminals from a closed circuit.

--- Relay Configuration --- 1. HK-OUT 1/2/3/4 Enable 2. HK-OUT 1/2/3 Enable 3. HK-OUT 1/2 Enable 4. HK-OUT 1 Enable 5. HK-OUT DisableEnter Selection ([RET] = No Change) :

Relay RL08 RL09 RL10 RL11

1. HK-OUT 1/2/3/4 Enable HK-OUT4 HK-OUT3 HK-OUT2 HK-OUT1

2. HK-OUT 1/2/3 Enable ALM HK-OUT3 HK-OUT2 HK-OUT1

3. HK-OUT 1/2 Enable ALM ALM HK-OUT2 HK-OUT1

4. HK-OUT 1 Enable ALM ALM ALM HK-OUT1

5. HK-OUT Disable ALM ALM ALM ALM

NCCOMNO

(FORM-C)

ROI-S03834

3-24


Step Procedure

Note: The current which can be passed to terminal of therelay is 0.2 A maximum.

4 First, if the four HK control output are required, press the“1” key and press the “Enter” key,

5 Then, the desired alarm name is selected,

Mask : Indicates that no alarm is issued at Maintenance.Out : Indicates that an alarm is issued from the corresponding

relay.– : No relationHK : Indicates that the Relay is assigned for HK control.

Note: While the CPU is initialized by depressing the RESETswitch, alarm(s) is in normal condition. Afterinitialization, the alarm information is properlyprovided through relay contacts.


RL01 RL02 RL03 RL04 RL05 RL06 RL07 RL08 RL09 RL10 RL11MAINT Out Mask Mask Mask Mask Mask Mask HK HK HK HKPS ALM - Out - - - - - HK HK HK HKCPU ALM - - Out - - - - HK HK HK HK

8. ODU ALM1 - - - Out - - - HK HK HK HK 9. ODU ALM2 - - - Out - - - HK HK HK HK10. IDU ALM1 - - - - Out - - HK HK HK HK11. IDU ALM2 - - - - Out - - HK HK HK HKEnter Selection([RET]=No Change):

Shown HK-OUT disable selected

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3-25


Step Procedure

Then select the relay that will be associated to the alarm thatwas previously selected.

Notes: 1. “Out” is appended to a relay that has already beenassigned to the alarm, selecting it unassigns thealarm to the relay.

2. If “Are You Sure?” is displayed, press the “Y” key.Otherwise, it is not registered.

6 If required, press the “3” key to control external equipmentconnected to the relays assigned as HK-OUT,

• Output ControlThis function can be used to remotely control externalapparatus in the station (e.g. A/C on/off).CONT Off:COM and NC terminals of relay are connected.CONT On:COM and NO terminals of relay are connected.

Notes: 1. When the “HK-OUT” is assigned in the relayoutput only, Output Control item is displayed.

2. A setup will be cleared if a power supply is turnedoff.

7 After setting the Relay/House Keeping setting, press the“ESC” key to go back to the menu.

--- Relay Configuration --- 4. RL04 (Out) 5. RL05 6. RL06 7. RL07 8. RL08 9. RL0910. RL1011. RL11Enter Selection([RET]=No Change):

--- Output Control --- 1. HK-OUT1 (CONT Off) 2. HK-OUT2 (CONT Off) 3. HK-OUT3 (CONT On) 4. HK-OUT4 (CONT Off)Enter Selection : 1

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3-26

3.4 Antenna Orientation

After the initial setting, an antenna orientation is performed between twostations according to the procedures in Chart 3-7.

Chart 3-7 Antenna Orientation

Apparatus :

HP 3466A Digital Multimeter (or equivalent) with test leads or X0818AOW/RX LEV Monitor

Wrench

Step Procedure

1 At each station, when the TX power control is operated inATPC, set the TX Power Control item of SystemConfiguration to “MTPC” using the LCT.Note: In Antenna Alignment Mode, since ATPC control stops, it

is set to MTPC mode and TX power is fixed.

2 At each station, TX power is set to the value calculated bythe system design. TX power setting can be performed byMTPC TX PWR item of “Provisioning Data” using LCT (orTX power is set to 0 dB (value of MTPC TX PWR item) sothat TX power becomes the maximum),

Note: The MTPC TX PWR is the item which sets up the quantityof attenuation of transmitter power, and adjuststransmission power with the quantity of this attenuation.



ROI-S03834

3-27


Step Procedure

3 At each station, press the “9” key twice for setting theAntenna Alignment mode of “Maintenance” and press the“Enter” key,

Note: The “Antenna Alignment Mode” is used for extending thedynamic range of the RX LEVEL MONITOR (ODU). Inthis mode, since control of TX power stops, the normaloperation can not be performed.

4 At each station, remove the cap from the RX LEV MONconnector on the ODU (see Fig. 3-5),

5 At each station, set up as in Fig. 3-5 (Connect cables to RXLEV MON connector using F-type plug),

--- Control --- 1. RF Frequency 2. ATPC Manual Control 3. TXSW Manual Control 4. TX Mute 5. RXSW Manual Control 6. CW 7. IF Loopback 8. STM-1 Loopback (Near End) 9. STM-1 Loopback (Far End)10. ALS Manual Restart99. Antenna Alignment ModeEnter Section : 99

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3-28


Step Procedure

6 At each station, adjust the azimuth and elevation angle ofthe antenna alternately so that the measured voltagebecomes maximum,

Note: The relation of the RX INPUT LEVEL and RX LEVELMON is shown below.

A. USING NEW TYPE BRACKET

Azimuth Angle Adjustment

6-1 Loosen bolts (1 in Fig. 3-6),

6-2 Adjust the azimuth angle by bolt (2 in Fig. 3-6),

6-3 Secure bolts loosened in step 6-1,

Elevation Angle Adjustment

6-4 Loosen bolts (3 in Fig. 3-6),

6-5 Adjust the elevation angle by bolt (4 in Fig. 3-6),

RX LEVEL MON　vs　RX INPUT LEVEL　（Typical）

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

-80 -70 -60 -50 -40 -30 -20

RX INPUT LEVEL　[dBm]

RX L

EV

EL M

ON

　[V

]

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3-29


Step Procedure

6-6 Secure bolts loosened in step 6-4,

B. USING OLD TYPE BRACKET

Azimuth Angle Adjustment

6-7 Loosen nuts (1 in Fig. 3-6),

6-8 Adjust the azimuth angle by adjusting the nuts (2 in Fig. 3-6),

6-9 Secure nuts loosened in step 6-8,

6-10 Secure nuts loosened in step 6-7,

Elevation Angle Adjustment

6-11 Loosen bolt(s) (3 in Fig. 3-6),

6-12 Adjust the elevation angle by adjusting the nuts (4 in Fig. 3-6),

6-13 Secure nut loosened in step 6-12,

6-14 Secure nuts loosened in step 6-11.

7 At each station, disconnect the digital multimeter or OW/RX LEV Monitor from the RX LEV MON connector,

8 At each station, reconnect the cap removed in step 4,

9 At each station, restore the “Antenna Alignment Mode” to“off” position using the LCT,

10 At each station, when the TX power control is operated inATPC, restore the TX Power Control item of SystemConfiguration changed in step 1 to “ATPC” using the LCT,

11 At each station, when the TX power control is operated inMTPC, restore MTPC TX PWR item of “ProvisioningData” changed in step 2 to original setting position using theLCT.

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3-30

Fig. 3-5 Antenna Orientation Test Setup

RX LEV MON

1 2 3 450

V

OW

OW/RX LEV MONITOR

RX LEV/OW IN

DIGITAL MULTIMETER

RX LEV MON

OR

6/7/8 GHz BAND ODU

11-38 GHz BAND ODU

ROI-S03834

3-31

Fig. 3-6 Location of Adjusting Nuts

1. Loosen for adjusting azimuth

2. Adjust azimuth

3. Loosen (1/4 TURN) bolts for adjusting elevation

1. Loosen for adjusting azimuth

2. Adjust azimuth

0.3 φ m Antenna

0.6 φ m Antenna

3. Loosen bolts for adjusting elevation

4. Adjust elevation

B. OLD TYPE BRACKET

4. Adjust elevation

2. Adjust azimuth

1. Loosen (1/2 turn) bolts for adjusting azimuth (top and bottom)

3. Loosen (1/2 turn) bolts for adjusting elevation

4. Adjust elevation

A. NEW TYPE BRACKET


3-32

3.5 Lineup Test

Procedure for line up test between two stations are listed in Table 3-2.

Chart 3-8 BER Measurement

Apparatus :

HP 3466A Digital Multimeter (or equivalent) with test leads

Screwdriver

SDH/SONET Analyzer

ANRITSU MN95D Optical Variable Attenuator

Headset

Step Procedure

A. ELECTRICAL INTERFACE

1 At the transmitting end, disconnect coaxial cable from theSTM1 IN connector on the 150M INTFC module (see Fig. 3-6),

2 At the receiving end, disconnect the coaxial cable from theSTM1 OUT connector on the 150M INTFC module (see Fig.3-6),

3 At both transmitting and receiving ends, set the STM/SONET Analyzer as follows:

• Bit rate : 155.52 Mbps

• Code format : STM-1, CMI

• Level : 1 Vp-p

• Impedance : 75 ohms, unbalanced

Table 3-2 Lineup Test Items

Item Remarks

1 BER Measurement Chart 3-8

2 Meter Reading Chart 3-9

3 Orderwire Test Chart 3-10


3-33


Step Procedure

4 At both transmitting and receiving ends, set up as shown inFig. 3-6,

5 Measure BER and confirm that the BER satisfies belowrequirement below,Requirement: 1 × 10–12 or less

B. OPTICAL INTERFACE

Caution: Do not stare into laser beam or view directly withoptical instruments. Otherwise, it may hurt eyes (Class1 Laser Product).

Note: In the G7899A OPT INTFC module, since there is onlyone connector, transmission and reception of BERmeasurement can not be performed simultaneously.

6 Repeat steps 1 and 2 for the OPT INTFC module(see Fig. 3-6),

7 At transmitting and receiving ends, set the STM/SONETAnalyzer as follows:

G7898A G7899A G7899BOPT INTFC OPT INTFC OPT INTFC

• Bit rate : 155.52 Mbps 155.52 Mbps 155.52 Mbps• Code format : STM-1, CMI STM-1, CMI STM-1, CMI• Level : −8 to −28 −3 to −23 −3 to −23

dBm (IN) dBm (IN) dBm (IN)−8 to −15 −7 dBm −7 dBmdBm (OUT) (OUT) (OUT)

• Wave length : 1310 nm (IN) 1550 nm (IN) 1310 nm (IN)1310 nm 1310 nm 1550 nm(OUT) (OUT) (OUT)

8 Adjust input level of the STM1 IN terminal on the IDU to asuitable value using the optical variable attenuator,

9 Repeat steps 4 and 5.


3-34

Note: * Applied to the OPT INTFC module.

Fig. 3-7 BER Measurement Setup

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

STM/SONETANALYZER150M INTFC/

OPT INTFC

TRANSMITTING END

IDU

STM1 IN

STM/SONETANALYZER150M INTFC/

OPT INTFC

RECEIVING END

IDU

STM1 OUT

OPTICAL VARIABLE

ATTENUATOR *

ODU

+ODU


3-35

Chart 3-9 Meter Reading

Step Procedure

1 Referring to Fig. 3-3, connect the RS-232C cable betweenthe LCT and the IDU,



4 Enter password “12345678” and press the “Enter” key,




3-36


Step Procedure

5 Press the “2” key for Performance Monitor and press the“Enter” key,

6 Press the “1” key for Display Metering/BER and press the“Enter” key,

7 Then, the value of TX POWER, RX LEVEL and ODU PSMON are displayed. Confirm that the LCT indication is asdescribed in Table 3-3,

Notes: 1. * BER (radio BER) is calculated every one minute.“Calculating” is displayed till the value is fixed.

2. When the data is invalid, *E-** is displayed.3. TX POWER/RX LEVEL is indicated in 1 dB step.4. The range of RX LEVEL which can be displayed is as

follows:• 32 QAM: −20 to −84 dBm• 128 QAM: −20 to −75 dBm

Enter Selection : 2

--- Performance Monitor --- 1. Display Metering / BER 2. Display Performance Monitor 3. Display Threshold Data 4. Set Threshold Data

Enter Selection : 1

--- Display Metering / BER --- TX POWER +10dBm RX LEVEL -60dBm ODU PS MON -43V BER 0.0E-10 *


3-37


Step Procedure

Notes: 1. If an abnormal indication appears, proceed with paragraph5.1 in Maintenance Section.

2. * Varies with receiving RF signal level.3. ** Varies with cable length between the IDU and ODU.

4. *** This value is required to keep a system quality of 10-3.5. TX POWER and RX LEVEL indication precision is ±3 dB.6. Record display indication on the LCT.

8 After testing, press the “ESC” key to return to previousmenu,

9 Press the “0” key to Logout and press the “Enter” key.

Table 3-3 Meter Reading

Check Item Normal Indication Allowable Range

TX POWER

6/7/8 GHz +25 to 0 dBm (128 QAM)

Normal indication ±3 dB

11/13/15 GHz +16.5 to –8.5 dBm (128 QAM)

18/23 GHz+18 to –10 dBm (32 QAM)+15 to –10 dBm (128 QAM)

26 GHz+17 to –11 dBm (32 QAM)+14 to –11 dBm (128 QAM)

38 GHz+13.5 to –9.5 dBm (32 QAM)+10.5 to –9.5 dBm (128 QAM)

RX LEVEL –30 dBm* 6/7/8 GHz –15 to –69.0 dBm*** (128 QAM)11/13/15 GHz –15 to –67.0 dBm*** (128 QAM)

18/23 GHz–15 to –77.0 dBm*** (32 QAM)–15 to –68.5 dBm*** (128 QAM)

26 GHz–15 to –76.5 dBm*** (32 QAM)–15 to –68.0 dBm*** (128 QAM)


ODU PS MON –40 V** –32 to –46 V DC


3-38

Chart 3-10 Oderwire Test

Step Procedure

1 Connect OW/RX LEV Monitor to the RX LEV MONconnector on the ODU (see Fig. 3-9),

2 Connect headset(s) to the EOW jack on the IDU and/or tothe HEADSET jack on the OW/RX LEV Monitor (see Figs.3-8 and 3-9),

3 Press the CALL button on the IDU,

Requirement: At the opposite station, the buzzer on the IDUis activated,

4 Check that the orderwire communication between thestations is possible by using headsets,

5 Set the OW switch on the OW/RX LEV Monitor to ON (OWindicator on the OW/RX LEV Monitor is turned on),

6 Check that orderwire communication between the IDU andODU is possible by using headsets,

7 Set the OW switch on the OW/RX LEV Monitor to OFF(OW indicator on the OW/RX LEV Monitor is turned off),

Note: The battery becomes weak if the OW switch is kept ON.

8 Disconnect headset(s) from EOW jack on the IDU, and/orfrom the HEADSET jack on the OW/RX LEV Monitor,

9 Disconnect the OW/RX LEV Monitor from the RX LEVMON connector on the ODU.


3-39

Fig. 3-8 Lineup Test Setup for IDU

Fig. 3-9 OW Test Setup for ODU

(FRONT VIEW)IDU

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−ALM

STM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

EOW CALL

ODU

RX LEV MON

1 2 3 450

V

OW

OW/RX LEV MONITOR

RX LEV/OW IN

DIGITAL MULTIMETER

RX LEV MON

OR

6/7/8 GHz BAND ODU

11-38 GHz BAND ODU

HEAD SET


3-4040 pages



CL-1


PASOLINK +

(STM-1/1+0 SYSTEM)

MAINTENANCE

CONTENTS

TITLE PAGE1. GENERAL••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1-1

2. PRECAUTIONS••••••••••••••••••••••••••••••••••••••••••••••••••• 2-1

3. TEST SETS AND ACCESSORIES••••••••••••••••••••••• 3-1

4. PREVENTIVE MAINTENANCE ••••••••••••••••••••••••••• 4-1

5. CORRECTIVE MAINTENANCE••••••••••••••••••••••••••• 5-15.1 Fault Location ••••••••••••••••••••••••••••••••••••••••••••••••••••• 5-15.2 Replacement •••••••••••••••••••••••••••••••••••••••••••••••••••• 5-175.2.1 IDU or Module Replacement •••••••••••••••••••••••••••••••• 5-175.2.2 ODU Replacement ••••••••••••••••••••••••••••••••••••••••••••• 5-175.3 Alignment •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5-31

6. MOUNTING OF OPTIONAL MODULES •••••••••••••• 6-16.1 Mounting ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6-16.2 Setting••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6-2

APPENDIX CHANGES OF PASSWORD •••••••••••••••••••• A-11. General••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A-12. Procedure ••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A-1

CONTENTS ROI-S03835

CL-22 pages


ROI-S03835 GENERAL

1-1

1. GENERAL

This section provides instructions for maintenance of the 6/7/8/11/13/15/18/23/26/38 GHz 150 MB digital microwave radio system.

This section provides instructions on the precautions, test sets andaccessories, preventive maintenance, corrective maintenance andmounting of optional modules.


GENERAL ROI-S03835

1-22 pages


ROI-S03835 PRECAUTIONS

2-1

2. PRECAUTIONS

The following precautions must be carefully observed duringmaintenance.

(a) The maintenance personnel should report arrival at and departurefrom a station to the relevant station. The following are dangersand warnings to the maintenance personnel.

Warning:1. The –43 V DC power is superimposed on the centerconductor of the coaxial cable between the IDU and theODU. Connecting test equipment directly to thisterminal may damage it and touching the coaxial cablecore may cause electrical shock.

2. Persons performing servicing must take necessary stepsto avoid electro-static discharge which may damage themodules on the IDU or cause error. Wear a conductivewrist strap connected to the grounded (G) jack on thefront of the equipment shelf. This will minimize staticbuild-up during servicing (see Fig. 2-1).

3. Do not disconnect the IF cable between the IDU and theODU in operating condition, to avoid damaging the IDUand ODU. Do not remove/connect the IF cable with theIDU power ON, turn the IDU power OFF beforeconnecting the IF cable.

4. Wait for 10 seconds or more to turn OFF the powerswitch of the IDU again after turning it ON. Do notrepeat turning ON/OFF the power in a short time, or theIDU may fail.

Caution: 1. In a system using the OPT INTFC module, do not stareat the laser beam or look at it directly with opticalinstruments. Otherwise, it may hurt your eyes (Class 1Laser Product).

2. Be careful that top surface of the IDU is hot.

(b) During maintenance, the IDU should be set to maintenancecondition by the local craft terminal (LCT) (see Chart 2-1).

(c) First set the MAINT mode to “ON” before selecting the otheritems on the LCT maintenance menu.

(d) While the CPU is initialized by pressing the RESET switch,alarm(s) is in normal condition. After initialization, the alarminformation is properly provided through relay contacts.

(e) Information on the maintenance and the control such as Mute,CW, LB, etc. is released if the power is turned off or the RESETswitch is pressed.

PRECAUTIONS ROI-S03835

2-2

(f) Before removing or installing the IDU/ODU, turn off the powerswitch on the IDU.

(g) For procedures to change the password, refer to the Appendix inthis section.

(h) After equipment start-up, allow the equipment to warm up at least30 minutes.

(i) After completing maintenance, restore all connections and manualswitch(es) to normal and confirm that all red alarm LEDs are unlit.

Fig. 2-1 G Terminal Location

G

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+

R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

ALM

FRONT VIEW

IDU

ODUMAINT


2-3

Chart 2-1 Maintenance Mode Setting

Step Procedure

1 Connect the RS-232C cable between the LCT and the IDU,

Fig. 2-2 LCT Setup


3 Enter Login name “Admin” and the “Enter” key,

4 Enter the specified password and press the “Enter” key,

LCT

RS-232C CABLE

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+

R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

ALM

ODUMAINT




2-4


Step Procedure

Maintenance Mode Setting



7 Press the “1” (ON) key and press the “Enter” key,

Enter Selection : 7


--- MAINT Mode --- 1. On 2. OffEnter Selection : 1

--- Maintenance --- 1. MAINT Mode (ON) 2. Control 3. Reset CPU 4. Set Calendar 5. Password Setting 6. Program DownloadEnter Selection :


2-5


Step Procedure

Restoring to Normal Mode



10 Press the “2” (OFF) key and press the “Enter” key,

11 Press the “ESC” key to return to previous menu,

12 Press the “0” key to logout and press the “Enter” key.

--- NEC SDH RADIO VER. X.XX.XX --- 0. Logout 1. Alarm / Status 2. Performance Monitor 3. Provisioning Data 4. System Configuration 5. Inventory Data 6. Relay / House Keeping 7. MaintenanceEnter Selection : 7

--- Maintenance --- 1. MAINT Mode (ON) 2. Control 3. Reset CPU 4. Set Calendar 5. Password Setting 6. Program DownloadEnter Selection : 1


--- Maintenance --- 1. MAINT Mode (OFF) 2. Control 3. Reset CPU 4. Set Calendar 5. Password Setting 6. Program DownloadEnter Selection :


2-66 pages


ROI-S03835 TEST SETS AND ACCESSORIES

3-1

3. TEST SETS AND ACCESSORIES

The test sets and special accessories listed in Table 3-1 are required formaintenance. If recommended test sets and accessories are not available,equivalents may be used.

Notes:1. * The OW/RX LEV Monitor operates on a dry battery (6F22/9V). When the OW/RX LEV Monitor will not be used for along period, remove the battery to avoid damage frombattery leakage and corrosion.

2. ** The communication/serial port settings of the personalcomputer used as local craft terminal (LCT) is listed below.• Bits per second: 19200 bps• Data bits: 8• Parity: none• Stop bit: 1• Flow control: Hardware• Emulation: VT100 Video Terminal• Transmission : Add CR at end of line : No

(send line ends with line feeds:No)*Local echo : No(Eco typed characters locally : No)*

• Receiving : CR : No(Append line feeds to incoming linefeeds : No)*Return on the right edge : Yes(Wrap lines that exceed terminalwidth : yes)*Force incoming data to 7-bit ASCII : No

* Windows Hyper Terminal settings.

Table 3-1 Test Sets and Accessories

No. Model Type Model Number Manufacture

1 STM/SONET Analyzer MP1560A ANRITSU

2 Optical Variable Attenuator MN95D ANRITSU

3 Digital Multimeter HP34401A HP

4 OW/RX LEV Monitor* X0818A NEC

5 Screwdriver — —

6 T Type Hexagonal Driver — —

7 Torque Wrench — —

8 Local Craft Terminal (LCT)** — —

TEST SETS AND ACCESSORIES ROI-S03835

3-2

Microsoft and Windows are either registered trademark ofMicrosoft Corporation in the United States and othercountries.

These display screens are shown in Fig. 3-1

The operation check by Hyper Terminal attached toWindows is performed by Windows 95/98. When using theHyper Terminal mode of Windows 2000, the charactersmay not be displayed correctly.

3. For operating the LCT properly, do not use the arrow key“→, ↑, etc.” (as generates the ESC code) instead of theESC key.

The length of the RS-232C cable between the personalcomputer and IDU should be less than 15 m. The cableconnector pin assignments are shown in Fig. 3-2.

ROI-S03835 TEST SETS AND ACCESSORIES

3-3

Fig. 3-1 Display Screens

Note: Please refer to the above screen shots as an example forthe Hyper Terminal Setting.

TEST SETS AND ACCESSORIES ROI-S03835

3-44 pages

Fig. 3-2 RS-232C Cable Pin Assignment

SIGNALNAME

PINNo.

87654321

RTSCTSDTRGNDDSRRXDTXDCD

LCT

SIGNALNAME

PINNo.

87654321

CTSRTSDTRGNDDSRTXDRXDDCD

IDU SIDE LCT CONNECTOR

MODULAR CONNECTORD-SUB CONNECTOR(9 Pins)

ROI-S03835 PREVENTIVE MAINTENANCE

4-1

4. PREVENTIVE MAINTENANCE

This chapter provides the routine (annual) maintenance procedures toensure the satisfactory operation of the equipment. During preventivemaintenance, carefully observe the precautions given in chapter 2.

• Meter Reading — Chart 4-1

Chart 4-1 Meter Reading

Step Procedure

1 Connect the RS-232C cable between the LCT and IDU (seeFig. 2-2 in Chart 2-1),


3 Enter Login name “User” and press the “Enter” key on theLCT,

4 Press the “2” key for Performance Monitor and press the“Enter” key,

Login : User

--- NEC SDH RADIO VER. X.XX.XX --- 0. Logout 1. Alarm / Status 2. Performance Monitor 3. Provisioning Data 4. System Configuration 5. Inventory Data 6. Relay / House KeepingEnter Selection :

PREVENTIVE MAINTENANCE ROI-S03835

4-2


Step Procedure

5 Press the “1” key for Display Metering /BER and press the“Enter” key. Verify the all items listed in Table 4-1.

Notes: 1. “3.0E-4” indicates a 3 × 10-4 bit error rate.

2. * BER (radio BER) is calculated every one minute.“Calculating” is displayed till the value is fixed.

3. TX POWER/RX LEVEL is indicated in 1 dB step.

4. The range of RX LEVEL which can be displayed is asfollows:• 32 QAM: −20 to −84 dBm• 128 QAM: −20 to −75 dBm

--- NEC SDH RADIO VER. X.XX.XX --- 0. Logout 1. Alarm / Status 2. Performance Monitor 3. Provisioning Data 4. System Configuration 5. Inventory Data 6. Relay / House KeepingEnter Selection : 2

--- Performance Monitor --- 1. Display Metering / BER 2. Display Performance Monitor 3. Display Threshold DataEnter Selection : 1

--- Display Metering / BER --- TX POWER +10dBm RX LEVEL -60dBm ODU PS MON -48V BER 0.0E-10*

--- Performance Monitor --- 1. Display Metering / BER 2. Display Performance Monitor 3. Display Threshold DataEnter Selection :


4-3


Step Procedure

Notes:1. If an abnormal indication appears, proceed to 5.1(Fault Location) in chapter 5.

2. *Varies with receiving RF signal level.

3. **Varies with cable length between the IDU andODU.

4. ***This value is required to keep a system quality of10-3.

5. Record display indication on the LCT.

6 Press the “2” key for Display Performance Monitor andpress the “Enter” key, if necessary,

Table 4-1 Meter Reading

Check Item Normal Indication Allowable Range

TX POWER

6/7/8 GHz +25 to 0 dBm (128 QAM)

Normal indication ±3 dB

11/13/15 GHz +16.5 to –8.5 dBm (128 QAM)

18/23 GHz+18 to –10 dBm (32 QAM)+15 to –10 dBm (128 QAM)

26 GHz+17 to –11 dBm (32 QAM)

+14 to –11 dBm (128 QAM)

38 GHz+13.5 to –9.5 dBm (32 QAM)+10.5 to –9.5 dBm (128 QAM)

RX LEVEL –30 dBm* 6/7/8 GHz –15 to –69.0 dBm*** (128 QAM)

11/13/15 GHz –15 to –67.0 dBm*** (128 QAM)

18/23 GHz–15 to –77.0 dBm*** (32 QAM)–15 to –68.5 dBm*** (128 QAM)


38 GHz–15 to –75.0 dBm*** (32 QAM)

–15 to –64.5 dBm*** (128 QAM)ODU PS MON –40 V** –32 to –46 V DC


4-4


Step Procedure

7 Press the “1” key for 15min Register/DMR and press the“Enter” key,

Notes: 1. Indicates the performance of input signal and theperformance of Radio every 15 min. or every day. The 15min performance is indicated for up to 24 hours and theperformance is indicated for up to 7 days.

Items displayed are as follows:• OFS: Out of frame second• BBE: Background block error• ES: Errored second• SES: Serenely errors second• UAS: Unavailable second

Explanation performance monitoring results:Time Stamp: Indicates the time for creating data (Year/

Month/Day Hour: Minute)

--- Performance Monitor --- 1. Display Metering / BER 2. Display Performance Monitor 3. Display Threshold Data 4. Set Threshold DataEnter Selection : 2

--- Display Performance Monitor --- 1. 15min Register / DMR 2. 15min Register / MUX 3. 1day Register / DMR 4. 1day Register / MUXEnter Selection : 1

Time Stamp | Status | OFS | BBE | ES | SES | UAS------------------------------------------------------------------------------------------------------- 2001/01/01 00:15 | Invalid | + 12 | + 34567 | + 890 | + 12 | 34 2001/01/01 00:30 | Valid | 5 | + 6789 | 12 | 3 | 4

2001/01/01 05:45 | Valid | 0 | 0 | 0 | 0 | 0 2001/01/01 06:00 | Valid | 0 | 0 | 0 | 0 | 0

Next Data ? (Y/N) : y

--- Display Performance Monitor --- 1. 15min Register / DMR 2. 15min Register / MUX 3. 1day Register / DMR 4. 1day Register / MUXEnter Selection :


4-5


Step Procedure

Status: Status of relevant registerCurrent: Indicates the data currently being

measured.Valid: Indicates valid data.Invalid: Indicates invalid data.MAINT: Indicates the data created during MAINT.

DATA: The “+” mark preceding the number indicates thatthe preset TCN value has been exceed.

2. Press the “Y” or “y” key to display the next data.Otherwise, press the “N” or “n” key.

8 Check the following items in same manner,

2. 15min Register/MUX

3. 1day Register/DMR

4. 1day Register/MUX


4-66 pages


Step Procedure

9 Press the “3” key for Display Threshold Data and press the“Enter” key,



--- Performance Monitor --- 1. Display Metering / BER 2. Display Performance Monitor 3. Display Threshold Data 4. Set Threshold DataEnter Selection : 3

--- Display Threshold Data --- Item | min / DMR | min / MUX | day / DMR | day / MUX----------------------------------------------------------------------------------------- OFS Occur | 900 | 900 | 65534 | 65534 OFS Recover | 90 | 90 | 650 | 650 BBE Occur | 65534 | 65534 | 65534 | 65534 BBE Recover | 650 | 650 | 650 | 650 ES Occur | 900 | 900 | 65534 | 65534 ES Recover | 90 | 90 | 650 | 650 SES Occur | 900 | 900 | 65534 | 65534 SES Recover | 90 | 90 | 650 | 650 UAS Occur | 900 | 900 | 65534 | 65534 UAS Recover | 90 | 90 | 650 | 650

--- Performance Monitor --- 1. Display Metering / BER 2. Display Performance Monitor 3. Display Threshold Data 4. Set Threshold DataEnter Selection :

ROI-S03835 CORRECTIVE MAINTENANCE

5-1

5. CORRECTIVE MAINTENANCE

Corrective maintenance done in the field is described in this chapter.Corrective maintenance in the field covers fault isolation, module/unitreplacement and alignment. The fault location procedures describes howto isolate module-level/unit-level faults.

Faults can be classified into those that cause deterioration of thetransmission quality and those that interrupt the service due to amalfunction of the equipment. This chapter explains the troubleshootingprocedures for equipment faults and the corresponding remedial methods.The purpose of troubleshooting malfunctioning equipment is to restart theservice by locating the faulty part and replacing it with a spare .

The faults that cause deterioration in the transmission quality are primarilyoriginated by changes occurred in the state of propagation. Therefore, if adecline in the transmission quality or similar fault takes place frequently,the link design will have to be reviewed.

During the corrective maintenance, carefully observe the precautionsgiven in chapter 2, until the alignment is completed.

5.1 Fault Location

The following 3 methods are available to check the details of a fault:

• Checking the ALM LED Indications and LCT Indication

• Meter readings

• Loopback.

(a) Checking the ALM LED Indications and LCT IndicationA faulty part can be located by checking the ALM LEDindications and LCT indications. For the explanation of the ALMLED indication and LCT indication, refer to 2.4.1 (AlarmIndication and Reporting) of chapter 2 in Description section.Also refer to Chart 5-1 for operations of the LCT.

(b) Meter ReadingsBased on the meter readings during periodical inspectiondescribed in chapter 4, a faulty part can be located by checking ifthe reading values exceed the permissible ranges. Table 5-1shows the correspondence between the items for which abnormalreadings are detected and the faulty parts. In the case of anabnormal BER measurement result among the meter readingitems, try to locate the faulty part by (c) Loopback.

CORRECTIVE MAINTENANCE ROI-S03835

5-2

(c) LoopbackWhen there is an interruption of signals, use the STM/SONETanalyzers and isolate the faulty part by checking the passage of theSTM-1 signal by loopback. Locate the fault by using thefollowing diagrams.

• Fig. 5-1 – Loopback Diagram for Fault IsolationShows the part from where the signal is to be turned back.

• Chart 5-2 – Loopback BER Measurement

• Fig. 5-2 – BER Measurement Setup

• Chart 5-3 – Loopback Control Setting

When the maintenance such as isolating a faulty portion at the occurrenceof failure and revising the software are carried out, “Control” item inMaintenance is used.

Note: Indication items on LCT display should be changed according tosystem configuration.

Enter Selection : 2

--- Control --- 1. RF Frequency 2. ATPC Manual Control 4. TX Mute 6. CW 7. IF Loopback 8. STM-1 Loopback (Near End) 9. STM-1 Loopback (Far End)10. ALS Manual Restart99. Antenna Alignment ModeEnter Selection :


5-3

Details of “Control” item is described as follows:

ControlControl items can be selected only under maintenance mode. As this“Control” is likely to cause disconnection of signal, take care duringoperation.

• RF FrequencySets the transmitting and receiving RF frequencies.

• ATPC manual controlUsed when changing of the transmitting power is required duringATPC operation.

• TX muteTurns off/disables the transmitter output.

• CWUsed for outputting a clean carrier wave (CW). Used to confirm thetransmitting output power and frequency stability.

• IF loopbackUsed for localizing equipment failure to ODU or IDU. The inputSTM-1 signal from MUX is looped back at IF stage. If noabnormality is found in the signal after IF loopback, it is assumedthat the ODU has a problem.

• STM-1 loopback (NEAR END)User for localizing equipment failure to MUX equipment or radioequipment. The input STM-1 signal from MUX is looped back andthen output with STM-1 signal. If no abnormality is found in thesignal with NEAR END loopback, it is assumed that the radioequipment (IDU or ODU) has a problem.

• STM-1 loopback (FAR END)Used for localizing equipment failure to MUX equipment or radioequipment. Signal is looped back at the IDU of the opposite station.If no abnormality is found in the signal through FAR END loopback,it is assumed that the local radio equipment (IDU or ODU) has noproblem.

• ALS manual restartSets the duration that the laser is emitted when ALS manual restartfor test is performed.


5-4

• Antenna Alignment ModeThe Antenna Alignment Mode is the mode used for AntennaOrientation. This mode is used for extending the dynamic range ofthe RX LEVEL MONITOR. The output of RX LEV MON in ODUcan be enlarged and the meter indication of the OW/RX LEVMonitor can be enlarged. In this mode, since control of TX powerstops, the normal operation can not be performed.

Note: The relation of the RX INPUT LEVEL and RX LEVEL MONis shown below.

RX LEVEL MON　vs　RX INPUT LEVEL　（Typical）

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

-80 -70 -60 -50 -40 -30 -20

RX INPUT LEVEL　[dBm]

RX L

EV

EL M

ON

　[V

]


5-5

Note: O indicates abnormal condition.

Chart 5-1 Alarm and Status Monitoring

Step Procedure



3 Enter Login name “User” and press the “Enter” key on theLCT,

4 Press the “1” key for Alarm/Status and press the “Enter”key,

Table 5-1 Fault Isolation by Meter Reading

ConditionMeter Reading Fault

IsolationTX Power RX Level ODU PS MON

1 ODU

2 Path propagation or ODU

3

DC-DC CONV module on MD UNIT of IDU or IF cable

Login : User

--- NEC SDH RADIO VER. X.XX --- 0. Logout 1. Alarm / Status 2. Performance Monitor 3. Provisioning Data 4. System Configuration 5. Inventory Data 6. Relay / House KeepingEnter Selection :


5-6


Step Procedure

Notes: 1. *1 When an “Alarm” indication is displayed, the ODU isfailure.

2. *2 When an “Alarm” indication is displayed, the IDU isfailure.

3. *3 When an “Alarm” indication is displayed, the 150MINTFC/OPT INTFC is failure.

4. *4 When an “Alarm” indication is displayed, the LANCARD/WS INTFC module is failure.

5. The alarm and status indication items displayed depends onthe system configuration.

Enter Selection : 1

--- ODU --- TX POWER Normal TX INPUT Normal RX LEVEL Normal APC Normal CABLE Alarm

--- IDU --- MOD Alarm DEM Alarm HIGH BER Normal LOF Normal MD CPU Alarm E-BER(MUX) Normal SD(MUX) Normal E-BER(DMR) Normal SD(DMR) Normal MAIN INTFC LOS Normal MAIN INTFC LOF Normal SUB INTFC LOS Normal

--- MODULE --- MODEM Alarm POWER SUPPLY Normal MAIN INTFC Normal *3 SUB INTFC Normal *4

--- NEC SDH RADIO VER. X.XX --- 0. Logout 1. Alarm / Status 2. Performance Monitor 3. Provisioning Data 4. System Configuration 5. Inventory Data 6. Relay / House KeepingEnter Selection :

*1

*2

*2


5-7


Step Procedure

The alarm and status of each module and ODU are displayed.Each items is explained below.

TX POWER: Indicates the status of the transmitter in the ODU.When the normal transmission level cannot beoutput due to failure in the transmitter, this alarmis issued.

TX INPUT: Indicates the status of the input transmittingmodulated signal from IDU. If the input signalfrom the IDU is lost, this alarm is issued.

RX LEVEL: Indicates the status of the receiver in the ODU. Ifthe receiving level exceeds the RX signal levelrequirements, this alarm is issued.

APC: Indicates the status of the synthesizer in the ODU. If anyabnormality occurs in the synthesizer, this alarm isissued.

CABLE: Indicates the status of communication between IDUand ODU. If a communication abnormality is causedbetween ODU and the IDU, this alarm is issued.

MOD: Indicates the status of the modulator. If a failureoccurred in the modulator and as a result of a transmitterside LSI failure, this alarm is issued.

DEM: Indicates the status of the demodulator. If a failureoccurred in the demodulator and as a result of a receiveside LSI failure, this alarm is issued.

HIGH BER: Indicates the quality deterioration status of thehighway between radio sections. If the signaldeteriorates below the preset threshold value, thisalarm is issued. The settable threshold values arethree: 3×10-4, 3×10-5 and 3×10-6.

LOF: Indicates the frame synchronization status.


5-8


Step Procedure

MD CPU: Indicates the status of communication between theIDU modules. If any abnormality in the response ofa module in the IDU has occurred, this alarm isissued.

E-BER (MUX):Indicates Excessive-BER of the input STM-1signal from the MUX side. If the signaldeteriorates below the preset threshold level,this alarm is issued. The settable thresholdvalues are three: 1×10-3,1×10-4 and 1×10-5.

SD (MUX): Indicates the Signal Degrade of the input STM-1signal from the MUX side. If the signaldeteriorates below the preset threshold level, thisalarm is issued. The settable threshold values arefour: 1×10-6, 1×10-7, 1×10-8 and 1×10-9.

E-BER (DMR) Indicates Excessive-BER of the input STM-1signal at the Radio side. If the signaldeteriorates below the preset threshold level,this alarm is issued. The settable thresholdvalues are three: 1×10-3, 1×10-4 and 1×10-5.

SD (DMR): Indicates the Signal Degrade of the input STM-1signal at the Radio side. If the signal deterioratesbelow the preset threshold level, this alarm isissued. The settable threshold values are four:1×10-6, 1×10-7, 1×10-8 and 1×10-9.

MAIN INTFC LOS: Indicates the input status of the inputSTM-1 signal from the MUX side. If theinput is disconnected, this alarm is issued.

MAIN INTFC LOF: Indicates the status of the input STM-1signal from the MUX side. If the inputsignal is out of synchronization, thisalarm is issued.

SUB INTFC LOS: Indicates the status of the SUB INTFCinput signal. If the input is disconnected,this alarm is issued.

MODEM: Indicates the operating status of the MODEM. Ifany failure occurs in the equipment, this alarm isissued.


5-9


Step Procedure

POWER SUPPLY: Indicates the operating status of the powersupply. If any failure occurs in theequipment, this alarm is issued.

MAIN INTFC: Indicates the operating status of the MAININTFC. If any failure occurs in the MAININTFC, this alarm is issued.

SUB INTFC: Indicates the operating status of SUB INTFC. Ifany failure occurs in the SUB INTFC, this alarmis issued.


6 Press the “0” key to logout and press the “Enter” key.

Fig. 5-1 Loopback Diagram for Fault Isolation

N/CCONVDEMRX

C/NCONVMODTX

(b)

IDUODU

RECEIVING END

TX

RX

MOD

DEM

RST DROP/INSERT

C/NCONV

N/CCONV

STM/SONETANALYZER

STM/SONETANALYZER

(a) (c)

ODUIDU

TRANSMITTING END

MODEM150M INTRC/ 150M INTFC/MODEMOPT INTFCOPT INTFC

RST DROP/INSERT

RST DROP/INSERT

RST DROP/INSERT


5-10

Chart 5-2 Loopback BER Measurement

This chart contains the following:

A. Electrical interface: Steps 1 to 4

B. Optical interface: Steps 5 to 8

Apparatus:STM/SONET AnalyzerOptical Variable Attenuator

Step Procedure

A. ELECTRICAL INTERFACE

1 At both transmitting end and receiving ends, disconnectcoaxial cables from the STM1 IN and STM1 OUT connectoron the 150M INTFC module of the IDU (see Fig. 5-2),

2 Set the STM/SONET Analyzer as follows:



• Level : 1 Vp-p


3 At both transmitting end and the receiving end, set up as in Fig. 5-2,

4 Measure BER

Requirement: 1 × 10–12 or less

B. OPTICAL INTERFACE

Caution: Do not stare into laser beam or look at it directlywith optical instruments. Otherwise, it may hurtyour eyes (Class 1 Laser Product).

5 Repeat steps 1 for the OPT INTFC module,


5-11


Step Procedure

6 Set the STM/SONET Analyzer as follows:G7898A G7899A G7899BOPT INTFC OPT INTFC OPT INTFC




7 Repeat step 3. Adjust the level at the STM1 IN connector tothe right level using the optical variable attenuator.

8 Repeat step 4.

Fig. 5-2 BER Measurement Setup

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

ALM

ODUMAINT

STM/SONETANALYZER

STM1 IN

IDU

STM1 OUT

OPTICALVARIABLEATTENUATOR*


5-12

Chart 5-3 Loopback Control Setting

This chart contains:A. Preparation: Steps 1 to 8B. IF Loopback Control: Steps 9 to 14C. STM-1 Loopback (Near End) Control:Steps 15 to 20D. STM-1 Loopback (Far End) Control:Steps 21 to 26If loopback operation is performed, timing loop may occur (timing loop isdescribed in ITU-T Recommendation G.781).

Step Procedure

Notes: 1. Service will be interrupted during Loopbackcondition.

2. Following Loopback operation is not performedsimultaneously. Loopback operation may affectradio link connection.• IF Loopback• Near End Loopback• Far End Loopback

3. Loopback operation is not performed with anopposite station simultaneously. Loopbackoperation may affect radio link connection.

A. PREPERATION



3 Enter Login name “Admin” and press the “Enter” key onthe LCT,




5-13


Step Procedure

4 Enter the specified password and press the “Enter” key,


6 Press the “1” key for MAINT Mode and press the “Enter”key,

7 Press the “1” key for ON and press the “Enter” key,


B. IF LOOPBACK CONTROL

Note: Used for localization of equipment failure in the ODU or IDU.The input STM-1 signal from MUX is looped back with IF signalvia 150M INTFC/OPT INTFC module and MODEM and thenoutput with STM-1 signal (see Fig. 5-1).

Enter Selection : 7



--- Maintenance --- 1. MAINT Mode (ON) 2. Control 3. Reset CPU 4. Set Calendar 5. Password Setting 6. Program DownloadEnter Selection :


5-14


Step Procedure

9 Press the “7” key for IF loopback and press the “Enter”key,

Note: Setting items displayed on the LCT depend on setting conditionof “System Configuration”.


11 Press the “Y” key, then “Success!!” is displayed,

12 After the Loopback test for BER, press the “7” key andpress the “Enter” key,

13 Press the “2” key for OFF and press the “Enter” key,


Enter Selection : 2

--- Control --- 1. RF Frequency 2. ATPC Manual Control 3. TXSW Manual Control 4. TX Mute 5. RXSW Manual Control 6. CW 7. IF Loopback 8. STM-1 Loopback (Near End) 9. STM-1 Loopback (Far End)10. ALS Manual RestartEnter Selection : 7

--- IF Loopback --- 1. On 2. OffEnter Selection : 1

This will affect the radio link connectionAre You Sure ? (Y/N) : Y

Success !!


5-15


Step Procedure

C. STM-1 LOOPBACK (NEAR END) CONTROL

Note: Used for localization of equipment failure in the MUX orRadio equipment. The input STM-1 signal from MUX islooped back immediately, and then output with STM-1signal (see Fig. 5-1).

15 Press the “8” key for STM-1 Loopback (Near End) andpress the “Enter” key,







Enter Selection : 2

--- Control --- 1. RF Frequency 2. ATPC Manual Control 4. TX Mute 6. CW 7. IF Loopback 8. STM-1 Loopback (Near End) 9. STM-1 Loopback (Far End)10. ALS Manual RestartEnter Selection : 8

--- STM-1 Loopback (Near End) --- 1. On 2. OffEnter Selection : 1


Success !!


5-16


Step Procedure

D. STM-1 LOOPBACK (FAR END) CONTROL

Note: Used for localization of equipment failure in the MUX orRadio equipment. The input STM-1 signal is looped backwith 150M INTFC/OPT INTFC module of IDU at theopposite station and then output with STM-1 signal (seeFig. 5-1).

21 Press the “9” key for STM-1 Loopback (Far End) and pressthe “Enter” key,





Enter Selection : 2

--- Control --- 1. RF Frequency 2. ATPC Manual Control 4. TX Mute 6. CW 7. IF Loopback 8. STM-1 Loopback (Near End) 9. STM-1 Loopback (Far End)10. ALS Manual Restart99. Antenna Alignment ModeEnter Selection : 9

--- STM-1 Loopback (Far End) --- 1. On 2. OffEnter Selection : 1


Success !!


5-17


Step Procedure


26 Press the “Y” key, then “Success!!” is displayed.

5.2 Replacement

The replacement procedures of the IDU and ODU is described below.

5.2.1 IDU or Module Replacement

The procedures for replacing IDU/module with a spare are given in theChart 5-4.

5.2.2 ODU Replacement

The procedures for replacing the ODU with a spare are given in the Chart5-5. The label attached to the side of ODU indicates the ODU type (seeFig 5-3). To replace the ODU, prepare another ODU of the same type asindicated on the label of the failed one. (see 3.3 (Composition) inDescription section)


5-18

The classification of the ODU are as follows:

• TRP-6G-1AA (SHG)• TRP-7G-1AA (SHG)• TRP-8G-1AA (SHG)• TRP-11G-1AA (SHG)• TRP-13G-1AA (SHG)• TRP-15G-1AA (SHG)• TRP-18G-1AA (HG) or (SHG)• TRP-23G-1AA (HG) or (SHG)• TRP-26G-1AA (HG) or (SHG)• TRP-38G-1AA (HG) or (SHG)

Note: The HG type is used for 32 QAM system and the SHG typefor 32 and 128 QAM system.

Fig. 5-3 ODU Type and Frequency Indication Label

0678 !PASOLINK

SUB Band


( )


TXhigh/low

TRP-( )G-1AAOUTDOOR UNIT (SHG)

+

TX frequency

6/7/8 GHz Band ODU


PASOLINK



( )


TXhigh/low

TRP-( )G-1AAOUTDOOR UNIT (HG)

+

MHz SUB band

0678 !


5-19

Chart 5-4 IDU or Module Replacement

Warning:Persons performing servicing must take necessary steps toavoid electro-static discharge which may damage themodules or cause error. Wear a conductive wrist strapconnected to the grounded (G) jack on the front of theequipment shelf. This will minimize static build-up duringservicing. (see Fig. 2-1).

This chart contains:

A. Module replacement: Steps 1 to 10.B. IDU replacement: Steps 11 to 19.

Apparatus:Suitable Screwdriver

Step Procedure

A. MODULE REPLACEMENT

REMOVING

1 For LAN CARD or WS INTFC module, referring to Chart2-1, set the IDU to maintenance ON condition by LCT,

2 For the 150M INTFC or OPT INTFC module, turn off thepower switch on the IDU,

Note: When the LAN CARD and WS INTFC modules areremoved from IDU, this step is not performed.

3 Disconnect the coaxial cables or optical cables from module,if necessary,

4 Loosen two screws on the module as follows:

• 150M INTFC and OPT INTFC – Screw ¨ in Fig. 5-4

• LAN CARD and WS INTFC – Screw ¦ in Fig. 5-4

5 Pull out the module,

Note: Be careful do not touch the electric parts.


5-20


Step Procedure

MOUNTING

6 Align the module to the shelf, then push it in until themultipin connector firmly fits,

7 Tighten the two screws on the module,

8 Reconnect the coaxial cables or optical cables to module, ifnecessary,

9 For the 150M INTFC or OPT INTFC module, turn on thepower switch on the IDU,

10 For the LAN CARD or WS INTFC module, referring toChart 2-1, restore the maintenance OFF condition by LCT,

Fig. 5-4 Demounting and Remounting Module

FRONT VIEW

SCREW ¨SCREW ¦

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

PWR

MAINT ODU


5-21


Step Procedure

B. IDU REPLACEMENT

REMOVING

11 Turn off the power switch on the IDU,

12 Disconnect the coaxial cables, IF cable and the power cable,etc.,

13 Disconnect the cable from FG terminal,

14 As the illustrated in Fig. 5-5, loosen four screws and removethe IDU,

MOUNTING

15 Change the two brackets to desired position on the IDU, ifnecessary (see Fig. 5-6),

16 Mount the IDU into the original position of the 19-inch rackand tighten the four screws,

17 Reconnect the coaxial cables, IF cable and the power cableto the original position,

18 Reconnect the cable to FG terminal,

19 Turn on the power switch on the IDU.


5-22

Fig. 5-5 Demounting and Remounting

Fig. 5-6 Bracket Mounting Position

SCREW

Note: Weight 5 kg.

FRONT POSITION

CENTER POSITION

SIDE VIEW


5-23

Chart 5-5 ODU Replacement

This chart contains:A. 6/7/8 GHz Band ODU: Steps 1 to 12B. 11-38 GHz Band ODU: Steps 13 to 26

Apparatus:T type hexagonal driver

Step Procedure

A. 6/7/8 GHz BAND ODU

REMOVING


2 Remove the self-bonding tape from the IF IN/OUT and RFIN/OUT connectors,

3 Disconnect the IF and RF cables from the IF IN/OUT andRF IN/OUT connectors on the ODU,

4 Loosen the six bolts fixing the ODU with a T type hexagonaldriver,

5 Remove the ODU from the bracket with both hands.

MOUNTING

6 Put the spare ODU onto the bracket,


5-24


Step Procedure

7 Mount the spare ODU onto the bracket,

8 Tighten the six bolts in order following the number in thefigure with a T type hexagonal driver (recommended torqueis 451 N·cm torque),

9 Reconnect the RF cable to the RF IN/OUT connector on theODU,

10 Reconnect the IF cable to the IF IN/OUT connector on theODU,

11 Wrap the IF IN/OUT and RF IN/OUT connectors with self-bonding tape for waterproof.

1

2

3

4

5 6


5-25


Step Procedure


Note: The self-bonding tape shall be prepared by thecustomer.

RF IN/OUT

IF IN/OUT

CABLE

SELF-BONDING TAPE

ODU

CABLE


5-26


Step Procedure

B. 11-38 GHz BAND ODU

REMOVING


14 Remove the self-bonding tape from the IF IN/OUTconnector,

15 Disconnect the IF cable from the IF IN/OUT connector onthe ODU,

16 Loosen four bolts fixing the ODU with a T type hexagonaldriver,

17 Remove the ODU from the bracket with both hands,

SCREWS

SCREWS


5-27


Step Procedure

MOUNTING

18 When vertical polarization is required, rotate the ODU sothat the plate marked V is on top,

Note: Remove the protection metallic plate covering the waveguidehole on ODU.

19 When horizontal polarization is required, remove the guidepin fixed on the plate marked with V,

GUIDE PIN

PLATE MARKED WITH V


5-28


Step Procedure

20 Insert the guide pin removed in step 19 behind of the platemarked H,

21 Rotate the ODU so that the plate marked H is on top,

22 Put the spare ODU onto the bracket,

Note: Be careful not to damage the flange.

GUIDE PIN

PLATE MARKED WITH H

PLATE MARKED WITH V

UP

V POLARIZATION

PLATE MARKED WITH H

UP

H POLARIZATIONV/H Polarization Conversion


5-29


Step Procedure

23 Mount the spare ODU onto the bracket and tighten the fourscrews on the ODU,

24 Reconnect the IF cable to the IF IN/OUT connector on theODU,

SCREWS

SCREWS


5-30


Step Procedure

25 Wrap the IF IN/OUT connector with self-bonding tape forwaterproofing.


Note: The self-bonding tape shall be prepared by the customer.

This part shall be wrapped by self-bonding tape for waterproofing.

ODU

IF CABLE

SELF-BONDING TAPE

ODU

IFL CONNECTOR

SELF-BONDING TAPE

ODU

IF CABLE

IN CASE OF L ANGLE


5-31

5.3 Alignment

After replacing the module/unit with spares, the equipment must bealigned as listed in Table 5-2. The inventory information of each modulein the equipment is displayed as shown in Chart 5-11.

Notes:1. In case of an other module, no alignment is necessaries.2. When replacing of the 150M INTFC and OPT INTFC

modules, set the “Main Interface” item under “SystemConfiguration” appropriately by LCT.

3. * This procedure is to be performed, if required.4. ** The BER measurement is optional, perform if necessary .5. All items must be restored to original condition.

Table 5-2 Equipment Alignment

Equipment Replaced Module/Unit Alignment Item Reference

Procedure

IDU 150M INTFC/OPT INTFC

BER Measurement* Chart 5-10

IDU 1. System Configuration Setting Chart 5-6

2. Date and Time Setting Chart 5-7

3. Provisioning Setting Chart 5-8

4. Relay/House Keeping Setting* Chart 5-9

5. BER Measurement ** Chart 5-10

6. Meter Reading Chart 4-1

ODU ODU 1. System Configuration Setting Chart 5-6

2. BER Measurement ** Chart 5-10

3. Meter Reading Chart 4-1


5-32

Chart 5-6 System Configuration Setting

This chart describes the procedure for setting the system configuration.The items to be set are as follows:

• Equipment Configuration• RF Frequency• TX Power Control• Frame ID• Main Interface

Setting of the system configuration should be performed in followingorder.

Step Procedure

1 Referring to Fig. 2-2 in Chart 2-1, connect the RS-232Ccable between the LCT and the IDU,



4 Enter specified password and press the “Enter” key,

Note: The factory setting is “12345678”. For procedures tochange the password, refer to the Appendix inMaintenance section.




5-33


Step Procedure

5 Press the “4” key for setting the System Configuration andpress the “Enter” key,

Following is an explanation of each item under the SystemConfiguration menu.

• Display Radio Equipment ConfigurationSelects to display radio equipment configuration.

• Setup Radio Equipment ConfigurationSelects to set radio equipment configuration.

6 Press the “2” key for setting the Equipment Configurationand press the “Enter” key,

It is necessary to set frequencies of the ODU. When thetransmitting frequency is set, the receiving frequency isautomatically set. For 6/7/8 GHz band ODU, the TXfrequency setting must be the same as that indicated on thelabel attached on the side of the ODU. For the 11-38 GHzband ODU, the actual transmit frequency setting that isentered should be within the TX frequency band of the ODU(see Appendix in Description section). For 11-38 GHz bandODU used in 32 QAM system, the frequency setting shouldbe at least + 21 MHz away from the band’s “Start” frequencyand at least − 21 MHz away from the band’s “Stop”frequency. For 11-38 GHz band ODU used in 128 QAMsystem, the frequency setting should be at least + 12 MHzaway from the band’s “Start” frequency and at least − 12MHz away from the band’s “Stop” frequency. The band’s“Start” and “Stop” frequency are displayed on the LCT.

Enter Selection : 4

--- System Configuration --- 1. Display Radio Equipment Configuration 2. Setup Radio Equipment ConfigurationEnter Selection :

--- RF Frequency ---Current TX Frequency = XXXXX.XXX[MHz]Current RX Frequency = XXXXX.XXX[MHz]Start TX Frequency = XXXXX.XXX[MHz]Stop TX Frequency = XXXXX.XXX[MHz]Shift Frequency = XXXXX.XXX[MHz]

Enter TX Frequency ([RET] = No Change) :


5-34


Step Procedure

7 After setting, press the “Enter” key for setting the TXPower Control,

ATPC : Automatic Transmission Power Control

MTPC : Manual Transmission Power Control

8 After setting, press the “Enter” key for setting the FrameID,

The frame ID is set in order to discriminate the signal. As asignal with a different ID cannot be received, the ID of theopposite station should be the same. The number of IDswhich can be set up is eight; ID1 through ID8.

--- TX Power Control --- 1. MTPC 2. ATPCCurrent Setting : 1Enter Selection ([RET] = No Change) :

--- Frame ID --- 1. ID1 2. ID2 3. ID3 4. ID4 5. ID5 6. ID6 7. ID7 8. ID8Current Setting : 1Enter Selection ([RET] = No Change) :


5-35


Step Procedure

9 After setting, press the “Enter” key for setting the MainInterface,

The interface requirement of the STM-1 main signal isselected from the following three types.STM-1 (Electrical) : Selects this when the G7897 150M

INTFC module is used as maininterface card.

STM-1 (Optical) : Selects this when the G7898 OPT INTFCmodule is used as main interface card.

STM-1 (Optical : Single Fiber) : Selects this when G7899OPT INTFC module isused (Mono fiber typeoptical module).

10 After setting the System Configuration, proceed to Chart 5-7 for the time setting.

--- Main Interface --- 1. STM-1 (Electrical) 2. STM-1 (Optical) 3. STM-1 (Optical: Single Fiber)Current Setting : 1Enter Selection ([RET] = No Change) :


5-36

Chart 5-7 Date and Time Setting

This chart describes the procedure for setting date and time. When theIDU is turned off for an extended period (i.e. approx. 1 week), theequipment time setting could have been cleared. In such case, verify andre-enter the time setting after turning on the IDU.

Step Procedure



3 Press the “4” key for setting the Set Calendar and press the“Enter” key,

Password : ********


Enter Selection : 7


--- Set Calendar ---Enter Year : 2001Enter Month : 2Enter Day : 28Enter Hour : 18Enter Min : 20Enter Sec : 40

Success !!


5-37


Step Procedure

4 Set all items according to display of the LCT,

5 After setting the time, proceed to Chart 5-8 for theProvisioning setting.


5-38

Chart 5-8 Provisioning Setting

This chart describes the procedure for setting the provisioning data.Setting items are as follows:

• ALS• BER Threshold• Sub Interface• OH Assignment• MTPC TX PWR• ATPC Range• RX Threshold• Additional ATT• ODU ALM MODE

Step Procedure


2 Press the “3” key for Provisioning Data and press the“Enter” key,

Following is an explanation of each Provisioning item.

• Display Current DataSelects to display current provisioning data.

• Set Provisioning DataSelects to set provisioning data.

Password : ********


--- Provisioning Data --- 1. Display Current Data 2. Set Provisioning DataEnter Selection :


5-39


Step Procedure

The factory settings are listed in the following table. To changethese settings, proceed to the following step.

Notes: 1. * Applies only to ATPC.2. In the factory setting, the TX output power is 23 (or 20)

dB lower than the standard level since the MTPC TXPWR is set to −23 (or −20) dB. If the standard outputlevel is required, set the MTPC TX PWR to 0 dB.

3. Provisioning items that cannot be set for the selectedoperating mode are not displayed on the LCT.

ItemFactory Setting


ALS (OPT INTFC only) Disable Disable

ALS DELAY TIME 60 sec. 60 sec.

HIGH BER 3 × 10-4 3 × 10-4

LOWBER FOR RX SW 3 × 10-7 3 × 10-7

E-BER (DMR) 1 × 10-4 1 × 10-4

SD (DMR) 1 × 10-7 1 × 10-7

E-BER (MUX) 1 × 10-4 1 × 10-4

SD (MUX) 1 × 10-7 1 × 10-7

SUB INTERFACE Not Used Not Used

OH ASSIGNMENT EasyVF-1 : DSC1VF-2 : DSC2V11-1 : DSC3Co.directionalV11-2 : DSC4Co.directional

EasyVF-1 : DSC1VF-2 : DSC2V11-1 : DSC3Co.directionalV11-2 : DSC4Co.directional

MTPC TX POWER –23 dB –20 dB

ATPC Range (max. ~ min.) 0 dB to –10 dB 0 dB to –10 dB

RX THRESHOLD –55 dBm –55 dBm

ADDITIONAL ATT 0 dB 0 dB

ODU ALM MODE* HOLD HOLD


5-40


Step Procedure


Note: Setting items displayed on the LCT depend on settingcondition of “System Configuration”.

4 Press the “1” key for setting the ALS and press the “Enter”key,

ALS sets Enable/Disable of automatic laser shutdown (ALS)function.

Note:Applies only to optical interface.

Enable : When the ALS function is used.

Disable : When the ALS function is not used.

Note:When the ALS function is enable, the ALS delay timedefines the delay time before the laser is emitted for 2seconds. The delay time can be set to 60, 180, or 300seconds.

5 After setting, press the “ESC” key to go back to menushown in step 3,



--- ALS --- 1. Enable 2. DisableCurrent Setting : 2Enter Selection ([RET] = No Change) :


5-41


Step Procedure

6 Press the “2” key for setting the BER Threshold and pressthe “Enter” key,

• High BER : Sets the threshold level for the Excessive-BERalarm of the Radio section. Sets the thresholdlevel of BER before switchover of RX SW in1+1 mode. There are three settable values;3×10-4, 3×10-5 and 3×10-6.

Note:High BER is monitored in the No.1 andNo.2 channels, respectively.

• Low BER for RXSW : Sets the threshold level for the signaldegrade (SD) alarm of Radio section.Used for RX SW switchovercondition in the 1+1 mode. There areseven settable threshold values;3×10-6, 3×10-7, 3×10-8, 3×10-9,3×10-10, 3×10-11 and 3×10-12.

• E-BER (DMR) : Sets the threshold level for the Excessive-BER alarm of the Radio section. Sets thethreshold level of BER after switchover ofRX SW in 1+1 mode. There are threesettable threshold values;1×10-3, 1×10-4 and 1×10-5.

• SD (DMR) : Sets the threshold level for the signal degrade(SD) alarm of the Radio section. Sets thethreshold level of BER after switchover of RXSW in 1+1 mode. There are four settablethreshold values;1×10-6, 1×10-7, 1×10-8 and 1×10-9.

--- BER Threshold --- 1. High BER 2. Low BER for RXSW 3. E-BER (DMR) 4. SD (DMR) 5. E-BER (MUX) 6. SD (MUX)Enter Selection :


5-42


Step Procedure

• E-BER (MUX) : Sets the threshold level for the Excessive-BER alarm of the input STM-1 signal fromMUX section. There are three settablethreshold values;1×10-3, 1×10-4 and 1×10-5.

• SD (MUX) : Sets the threshold level for the signal degrade(SD) alarm of the input STM-1 signal fromMUX section. There are four settablethreshold values;1×10-6, 1×10-7, 1×10-8 and 1×10-9.


8 Press the “3” key for setting the Sub Interface and press the“Enter” key,

Sub interface sets when using an optional interface card.

WS INTFC : Selects this when the WS INTFC module isused (Applies only to 32 QAM system).

There are three available WS interface types:• 2.048 Mbps unbalanced• 2.048 Mbps balanced• 1.544 Mbps (AMI or B8ZS)

Setting should be selected in accordance withWS INTFC module.

LAN Card : Selects this when the LAN Card is used. Whenusing a LAN function (10BASE-T interface) inthe equipment of 128 QAM, the transmissionway used should be selected in the OHAssignment item as follows:

• 32 QAM system• RFCOH of 2.048 Mbps

• 128 QAM system• DSC or RSOH (E1/F1) of 64 Kbps

--- Sub Interface--- 1. WS INTFC 2. LAN Card 3. Not Used : 0Current Setting : 0Enter Selection :


5-43


Step Procedure

Not Used : When the optional interface card is not mountedor the function of interface is no required, thisis selected.


10 Press the “4” key for setting the OH Assignment and pressthe “Enter” key,

OH Assignment sets Used/Not Used for service channel andsignal assignment are carried out. The service channel can beused as follows:

VF: 2 channels

V 11: 2 channels

Notes: 1. When LAN CARD is used in 128 QAM system,this setting is necessary. LAN CARD should beset in customize mode.

2. When LAN CARD is used in 32 QAM system, thissetting is not necessary.

Easy : When Easy is selected, the same setting as factorysetting is used. Here, setting of the LAN card can notbe performed.

Customize : When customize is selected it allows to selectfour out of the eight available channels andassign them to any of the DSC1 through 4,RSOH E1 (MUX), F1 (MUX), E1 (DMR) andF1 (DMR).

--- OH Assignment --- 1. Easy 2. CustomizeCurrent Setting : 1Enter Selection ([RET] = No Change) :

PASOLINK+MUX PASOLINK+ MUX

E1 (MUX)F1 (MUX)

E1 (MUX)F1 (MUX)

DSC 1-4E1 (DMR)F1 (DMR)


5-44


Step Procedure

Selection of Co-Directional of Contra-directional is available for V11 signal(optional).


12 Press the “5” key for setting the TX PWR and press the“Enter” key,

MTPC TX PWR sets the transmission power in MTPCoperation. If the attenuation is set to 0 dB, the maximumoutput power is obtained. Setting is available in the range of:• 32 QAM: −23 dB to 0 dB• 128 QAM: −20 dB to 0 dB

The level is not indicated in the ATPC mode.


14 Press the “6” key for setting the ATPC Range and press the“Enter” key,

ATPC Range sets the maximum or minimum transmissionpower during ATPC operation. If the ATPC Maximum PWRis set to 0 dB, the maximum output power is obtained. In theMTPC mode, this menu will not appear.

Note: Example of ATPC setting.Where ATPC MAXIMUM PWR of ATPC Range is setto 0 dB, ATPC MINIMUM PWR is set to -10 dB andRX Threshold to -60 dBm. In this case, if RX level issmaller than -60 dBm, monitor/control is performedwith the interval of 8 msec. RX level is monitored in 1dB step, and TX output is controlled in 1 dB step.However, a fixed hysteresis of 5 dB referred to the RXThreshold is implemented for ATPC operation.

--- MTPC TX PWR ---Current (-25 to 0dB) : -15Enter Selection ([RET] = No Change) :

--- ATPC Maximum PWR ---Current (-25 to 0dB) : 0Enter Selection ([RET] = No Change) :

--- ATPC Minimum PWR ---Current (-25 to [MAX]dB) : -10Enter Selection ([RET] = No Change) :


5-45


Step Procedure

Example: If RX Threshold is set to -60 dBm, no outputcontrol is made unless the RX level goes below -60dBm or goes above -55 dBm, so that the receive levelis maintained within -60 to -55 dBm.

15 After setting, press the “ESC” key to go back to menushown in step 3,

16 Press the “8” key for setting the RX Threshold and press the“Enter” key,

RX Threshold sets the threshold value of receiving level.

Note: For details, refer to 2.4.4 (Automatic TransmitterPower Control) of Chapter 2 in Description section.


18 Press the “9” key for setting the Additional ATT and pressthe “Enter” key,

The additional ATT is a span attenuator that is used to reducethe transmit power like in cases where the transmissionlength is short. First, the transmit output power is adjustedby setting the MTPC TX Power. If the MTPC TX Powersetting is insufficient, then set the Additional ATT. Theavailable setting range is from 0 to 5 dB.

-55 dBm

RX LEVEL

-60 dBm(RX THRESHOLD LEVEL)

5 dB(ATPCHYSTERESIS)

--- RX Threshold---Current (-55 to –30dBm) : -55Enter Selection ([RET] = No Change) :

--- Additional ATT ---Current (0 to 5dB) : 0Enter Selection ([RET] = No Change) :


5-46


Step Procedure

Note: This function can not be used in 38 GHz band ODU. Donot set to any values other than 0 dB.


20 Press the “1”, “0” key for setting the ODU ALM Mode andpress the “Enter” key,

This item defines the ODU transmit power level whencommunication between IDU and ODU is lost. This settingis not used when the equipment is set for MTPC operationand is thus, not displayed.

MAX Hold : Selects this to cause the ODU to transmit at theATPC Maximum PWR setting.

MIN Hold : Selects this to cause the ODU to transmit at theATPC Minimum PWR setting.

Hold : Selects this to cause the ODU to maintain thetransmit power at the time of failure .

21 After setting the Provisioning data, proceed to Chart 5-9 forthe optional relay house keeping setting, as required.Otherwise, press the “ESC” key to go back to the menushown in step 3.

--- ODU ALM Mode --- 2. MAX Hold 3. MIN Hold 4. HoldCurrent Setting : 3Enter Selection ([RET] = No Change) :


5-47

Chart 5-9 Relay/House Keeping Setting

This chart describes the procedure for setting the parallel alarm output andthe status of House Keeping.

The procedure in this chart is to be performed, as required.

Step Procedure

1 Press the twice “ESC” key twice to go back to the followingmenu,

2 Press the “6” key for Relay/House Keeping and press the“Enter” key,

The relay configuration setting and alarm output selection isexplained below.

• Display Current State

Selects to display House Keeping current state.

Password : ********


Enter Selection : 6

--- Relay / House Keeping --- 1. Display Current State 2. Relay Configuration 3. Output ControlEnter Selection :


5-48


Step Procedure

3 Press the “2” key for setting the Relay Configuration andpress the “Enter” key,

• Relay ConfigurationA maximum of 11 relays can be defined to provide parallelalarm outputs. The alarms that would cause RL1 to RL3 tobe triggered are pre-assigned while the alarms that wouldcause RL4 to RL11 to be triggered can be selected for eachrelay. It is also possible to define RL8 to RL11 as HK CONToutputs instead of alarm outputs as shown in the table below.If RL8 to RL11 are not assigned as HK CONT outputs, theymay be used as alarm outputs (see Table 2-2, chapter 2 inOperation section). As shown in Table 2-2 (chapter 2 inOperation section), more than one alarm may be assigned toeach relay.

RL1 to RL11 are FORM C relays. In the normal or controloff condition, the COM and NC terminals of the relays forma closed circuit and the COM and NO terminals from an opencircuit. In the alarm or control on condition, the COM andNC terminals of the relays form an open circuit and the COMand NO terminals from a closed circuit.

Relay RL08 RL09 RL10 RL11

1. HK-OUT 1/2/3/4 Enable HK-OUT4 HK-OUT3 HK-OUT2 HK-OUT1

2. HK-OUT 1/2/3 Enable ALM HK-OUT3 HK-OUT2 HK-OUT1

3. HK-OUT 1/2 Enable ALM ALM HK-OUT2 HK-OUT1

4. HK-OUT 1 Enable ALM ALM ALM HK-OUT1

5. HK-OUT Disable ALM ALM ALM ALM


NCCOMNO

(FORM-C)


5-49


Step Procedure

Note: The current which can be passed to terminal of therelay is 0.2 A maximum.

4 First, if the four HK control output are required, press the“1” key and press the “Enter” key,

5 Then, the desired alarm name is selected,

Mask : Indicates that no alarm is issued at Maintenance.

Out : Indicates that an alarm is issued from the correspondingrelay.

– : No relation

HK : Indicates that the Relay is assigned for HK control.

Note: While the CPU is initialized by depressing the RESETswitch, alarm(s) is in normal condition. Afterinitialization, the alarm information is properlyprovided through relay contacts.


RL01 RL02 RL03 RL04 RL05 RL06 RL07 RL08 RL09 RL10 RL11MAINT Out Mask Mask Mask Mask Mask Mask HK HK HK HKPS ALM - Out - - - - - HK HK HK HKCPU ALM - - Out - - - - HK HK HK HK

8. ODU ALM1 - - - Out - - - HK HK HK HK 9. ODU ALM2 - - - Out - - - HK HK HK HK10. IDU ALM1 - - - - Out - - HK HK HK HK11. IDU ALM2 - - - - Out - - HK HK HK HKEnter Selection([RET]=No Change):

Shown HK-OUT disable selected


5-50


Step Procedure

Then select the relay that will be associated to the alarm thatwas previously selected.

Notes: 1. “Out” is appended to a relay that has already beenassigned to the alarm, selecting it unassigns thealarm to the relay.

2. If “Are You Sure ?” is displayed, press the “Y” key.Otherwise, it is not registered.

6 If required, press the “3” key to control external equipmentconnected to the relays assigned as HK-OUT,

• Output Control

This function can be used to remotely control externalapparatus in the station (e.g. A/C on/off).

CONT Off:COM and NC terminals of relay are connected.

CONT On:COM and NO terminals of relay are connected.

Notes: 1. When the “HK-OUT” is assigned in the relayoutput only, Output Control item is displayed.

2. A setup will be cleared if a power supply is turnedoff.

7 After setting the Relay/House Keeping setting, press the“ESC” key to go back to the menu.

--- Relay Configuration --- 4. RL04 (Out) 5. RL05 6. RL06 7. RL07 8. RL08 9. RL0910. RL1011. RL11Enter Selection([RET]=No Change):

--- Output Control --- 1. HK-OUT1 (CONT Off) 2. HK-OUT2 (CONT Off) 3. HK-OUT3 (CONT On) 4. HK-OUT4 (CONT Off)Enter Selection : 1


5-51

Chart 5-10 BER Measurement

Apparatus:SDH/SONET AnalyzerOptical Variable Attenuator

Step Procedure

Electrical Interface

1 At the transmitting end, disconnect the coaxial cable fromthe STM1 IN connector on the 150M INTFC module (seeFig. 5-7),

2 At the receiving end, disconnect the coaxial cable from theSTM1 OUT connector on the 150M INTFC module (seeFig. 5-7),

3 At both transmitting and receiving ends, set the STM/SONET Analyzer as follows:



• Level : 1 Vp-p


4 At both transmitting and receiving ends, set up as shown inFig. 5-7,

5 Measure BER

Requirement: 1 × 10–12 or less

Optical Interface

Caution: Do not stare into laser beam or view directly withoptical instruments. Otherwise, it may hurt eyes(Class 1 Laser Product).

6 Repeat steps 1 and 2 for the OPT INTFC module,


5-52


Step Procedure

7 At both transmitting and receiving ends, set the STM/SONET Analyzer set as follows:

G7898A G7899A G7899BOPT INTFC OPT INTFC OPT INTFC




8 Repeat step 4,

9 Adjust the level at the STM1 IN connector to the right levelusing the optical variable attenuator,

10 Repeat step 5,


5-53

Fig. 5-7 BER Measurement Setup of 1+0 System

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+

R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

ODU

SC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+

R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT

ALM

STM/SONETANALYZER


TRANSMITTING END

IDU

STM1 IN

STM/SONETANALYZER


RECEIVING END

IDU

STM1 OUT

OPTICALVARIABLEATTENUATOR

ODU


5-54

Chart 5-11 Inventory Data Monitoring

Step Procedure

1 Referring to Fig. 2-2 in Chart 2-1, connect the RS-232Ccable between the LCT and the IDU,



4 Enter specified password and press the “Enter” key,




5-55


Step Procedure

5 Press the “5” key for Inventory Data and press the “Enter”key,

Each item of inventory data is explained below.• ODU : Indicates the information on the ODU.• IDU : Indicates the information on the IDU.• MDCPU : Indicates software version of the CPU on the

MODEM.• MAIN INTFC : Indicates the information on the MAIN

INTFC.• SUB INTFC : Indicates the information on the SUB INTFC.

If not used, the item is not displayed.

Note: The end of HW Type shows the kind of ODU.S : Super High Grade (SHG) − For 32/128 QAMsystemH : High Grade (HG) − For 32 QAM system

6 Press the “ESC” key,


Display Inventory data

Module | Code No. | Date | Serial No. | HW Type | SW Ver.---------------------------------------------------------------------------------------------------------- ODU | G7965A | 2001/01/27 | 004004 | 001S | 1.00 IDU | G7900A | 2001/02/20 | 004011 | - | 1.00

MDCPU | - | - | - | - | 1.00MAIN INTFC | G7898A | 2001/01/19 | 004004 | - | -

SUB INTFC | G7905A | 2001/01/19 | 004001 | - | -


5-5656 pages


ROI-S03835 MOUNTING OF OPTIONAL MODULES

6-1

6.MOUNTING OF OPTIONAL MODULES

This chapter explains the mounting of optional modules.

The optional modules explained in this chapter are:

• LAN CARD

• WS INTFC

The optional module can be additionally mounted after delivery. Atdelivery of equipment, in case the above-mentioned optional moduleshave not been mounted, a blank panel has been placed in the mountingposition of the corresponding module. In case optional modules areadditionally mounted, it is necessary to remove blank panels in advance.

It is not necessary to turn the equipment before mounting the optionalmodules.

6.1 Mounting

Chart 6-1 Option Module Monitoring

Warning:Maintenance personnel must take necessarycountermeasures to avoid the electrostatic discharge. Or itmay damage the IDU modules or cause an error. Wear aconductive wrist strap connected to the ground (G) jack onthe front panel of the unit to minimize the electric chargebuildup during the work. (see Fig. 2-1).

Apparatus:Screwdriver

Step Procedure

1 Set the IDU to maintenance ON condition by the LCT (seeChart 2-1),

2 Loosen two screws on the blank panel mounted in theposition of the optional module to mount. (see Fig. 6-1),

3 Hold the two screws with both hands, and remove a blankpanel.

MOUNTING OF OPTIONAL MODULES ROI-S03835

6-22 pages


Step Procedure

4 Mount an optional module in the corresponding position.(see Fig. 6-1),

5 Tighten the two screws on the optional module,

6 Set the IDU to maintenance “OFF” condition by the LCT(see Chart 2-1).

Fig. 6-1 Mounting Position

6.2 Setting

After mounting optional modules, it is necessary to set the provisioningdata. The LAN CARD and WS INTFC modules settings are as follows:

(a) LAN CARD• “Sub Interface” item of “Provisioning Setting” in Chart 5-8

should be set.• Using customize in the OH Assignment, DSC1 to 4, E1 (DMR)

or F1 (DMR) can be assigned for the LAN Card. Make surethat the same assignment is used in the opposite station.

Note: The “OH Assignment” item applies only to 128 QAMsystem.

(b) WS INTFC• The “Sub Interface” item of “Provisioning Setting” in Chart 5-8

should be set.

LAN CARD/WS INTFCSC IN/OUT ALM

CALLRESET

IDU

SEL V

+−

ALMSTM-1 IN

+R SW

EOW

FUSE (7.5A)

PWRPASOLINK

PNMT LCTIF IN/OUT

EOW1 EOW2

NE1 NE2 V11PNMS

LAN

ALM/AUX

STM-1 OUTPWR

MAINT ODU

ROI-S03835 APPENDIX

A-1

APPENDIX CHANGES OF PASSWORD

1. General

This Appendix provides the procedure for changing the password.

Note: If you forget a password, login of LCT is impossible. When youchange, be careful enough.

2. Procedure

Procedures for changing the password is referred to the Chart A-1.

Chart A-1 Password Changing

Step Procedure

1 Referring to Fig. 2-2 in Chart 2-1, connect the RS-232Ccable between the LCT and IDU,





APPENDIX ROI-S03835

A-22 pages

Chart A-1 (Cont’d)

Step Procedure

4 Enter the specified password, and press the “Enter” key,


6 Press the “5” key for password setting, and press the“Enter” key,

7 Enter the current password, and press the “Enter” key,

8 Enter the new password (8 figures), and press the “Enter”key,

9 To confirm the password, re-enter the new password andpress the “Enter” key,


11 Press the “0” key to logout.

Enter Selection : 7

--- Maintenance --- 1. MAINT Mode (XXX) 2. Control 3. Reset CPU 4. Set Calendar 5. Password Setting 6. Program DownloadEnter Selection : 5

--- Password Setting ---Enter Current Password : ********Enter New Password : ********Enter New Password : ********

--- Maintenance --- 1. MAINT Mode (XXX) 2. Control 3. Reset CPU 4. Set Calendar 5. Password Setting 6. Program DownloadEnter Selection :

SDH Manual

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