ADCP-75-179

Issue 1

January 2005

(

Digivance

®

LRCS 800/900 MHz SMR System

with Version 3.01 EMS Software

(

Operation and Maintenance Manual

20025-A

1304947 Rev A

ADCP-75-179

Issue 1

January 2005

Digivance

®

LRCS 800/900 MHz SMR System with Version 3.01 EMS Software

Operation and Maintenance Manual

1304947 Rev A

ADCP-75-179 • Issue 1 • January 2005 • Preface

COPYRIGHT

© 2005, ADC Telecommunications, Inc.

All Rights Reserved

Printed in the U.S.A.

REVISION HISTORY

ISSUE

1

DATE

01/2005

REASON FOR CHANGE

Original issue.

LIST OF CHANGES

The technical changes incorporated into this issue are listed below.

PAGE

All

IDENTIFIER DESCRIPTION OF CHANGE

Original issue.

TRADEMARK INFORMATION

ADC and Digivance are registered trademarks of ADC Telecommunications, Inc.

Stargazer is a registered trademark of ADC DSL Systems, Inc.

Procomm Plus is a registered trademark of Quarterdeck Corporation.

Acrobat and Adobe are registered trademarks of Adobe Systems, Inc.

DISCLAIMER OF LIABILITY

Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no

event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability applies to all products, publications and services during and after the warranty period.

This publication may be verified at any time by contacting ADC’s Technical Assistance Center at 1-800-366-3891, extension 73476

(in U.S.A. or Canada) or 952-917-3476 (outside U.S.A. and Canada), or by e-mail to [email protected]

Page ii

ADC Telecommunications, Inc.

P.O. Box 1101, Minneapolis, Minnesota 55440-1101

In U.S.A. and Canada: 1-800-366-3891

Outside U.S.A. and Canada: (952) 938-8080

Fax: (952) 917-1717

ADCP-75-179 • Issue 1 • January 2005 • Preface

TABLE OF CONTENTS

Content Page

ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

RELATED PUBLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

ADMONISHMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

GENERAL SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

STANDARDS CERTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

LIST OF ACRONYMS AND ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix

SECTION 1:

OVERVIEW

1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

2 LRCS SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

2.1

Basic System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

2.2

Enhanced Base Transceiver Station Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2.3

Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2.4

Local Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2.5

Network Operations Center Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

2.6

SNMP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

3 SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

3.1

Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

3.2

Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

3.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

3.4

Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

3.5

Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

SECTION 2:

DESCRIPTION

1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2 HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.1

Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.2

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

2.4

RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

2.5

RF Signal Level Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.6

Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.7

Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.8

Controller Area Network Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.9

Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.10 Auxiliary Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.11 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.12 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Preface

TABLE OF CONTENTS

Content Page

2.13 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

3 SPECTRUM TRANSPORT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

3.1

Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

3.2

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

3.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

3.4

Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.5

RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.6

Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.7

Service Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.8

Auxiliary Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.9

Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.10 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

3.11 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

4 35 WATT LINEAR POWER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

4.1

Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

4.2

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.4

Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.5

Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.6

User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

5 REMOTE UNIT MOUNTING SHELF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

5.1

Indoor Mounting Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

6 SLIM-STYLE REMOTE UNIT CABINETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

6.1

Slim-Style Single-STM Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

6.2

Slim-Style Dual-STM Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

7 ACCESSORY ITEMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

7.1

Remote Unit Back-up Battery Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

7.2

Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

7.3

Coarse Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

8 DIGIVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

8.1

Digivance EMS Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

8.2

Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

8.3

Computer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

8.4

Digivance EMS Computer Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

8.5

Digivance EMS User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

9 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

SECTION 3:

OPERATION

1 BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

1.1

Tools and Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Preface

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1.2

Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

2 TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

2.1

Turn-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

2.2

Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

2.3

Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

2.4

Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

2.5

Determine Output Signal Level at STM Antenna Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

2.6

Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

2.7

Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

2.8

Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

SECTION 4:

MAINTENANCE

1 SYSTEM MAINTENANCE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

1.1

Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

2 FAULT DETECTION AND ALARM REPORTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

3 FAULT ISOLATION AND TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

3.1

Host Unit Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

3.2

STM Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

3.3

LPA Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4 TEST PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

4.1

Optical Power Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

4.2

Optical Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

5 SCHEDULED MAINTENANCE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

SECTION 5:

GENERAL INFORMATION

1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

2 SOFTWARE SERVICE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

3 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

4 REPAIR CHARGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

5 REPLACEMENT/SPARE PRODUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

6 RETURNED MATERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

7 CUSTOMER INFORMATION AND ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Preface

ABOUT THIS MANUAL

This installation and operation manual provides the following information:

• An overview of the Digivance 800/900 MHz SMR Long-Range Coverage Solution

(LRCS) system.

• A complete description of the basic system components including the Host Unit (HU),

Spectrum Transport Module (STM), Linear Power Amplifier (LPA), and Digivance

Element Management System (EMS).

• A basic description of the slim-style Remote Unit (RU) cabinets and indoor mounting shelf.

• Procedures for tuning-up the system and verifying that the system is functioning properly.

• Procedures for maintaining the system including scheduled maintenance tasks and fault isolation and troubleshooting procedures.

• Product warranty, repair, return, and replacement information.

The procedures for installing the remote unit modules and enclosures and for installing and using the EMS software are provided in other publications which are referenced in the Related

Publications section and at appropriate points within this manual.

RELATED PUBLICATIONS

Listed below are related manuals, their content, and their publication numbers. Copies of these publications can be ordered by contacting the Technical Assistance Center at 1-800-366-3891, extension 73476 (in U.S.A. or Canada) or 952-917-3476 (outside U.S.A. and Canada).

Title/Description ADCP Number

Digivance LRCS System 800/900 MHz SMR Rear Access Host Unit

Installation and Maintenance Manual

Provides instructions for mounting the rear access host unit in an equipment rack, installing and connecting the various cables, and replacing the cooling fans.

75-180

Digivance LRCS Dual-STM Systems Supplemental Manual

Provides supplemental information for LRCS systems that utilize one of the dual-STM cabinets.

75-157

Digivance Element Management System Version 3.01 User Manual 75-1

82

Provides instructions for installing the Digivance Element Management System

(EMS) software and for using both the Graphical User Interface (GUI) and the

Network Operations Center (NOC) versions of the software.

Digivance SNMP Agent Software User Manual 75-1

83

Describes how to install, configure, and use the LRCS SNMP Proxy Agent.

Page vii

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Preface

ADMONISHMENTS

Important safety admonishments are used throughout this manual to warn of possible hazards to persons or equipment. An admonishment identifies a possible hazard and then explains what may happen if the hazard is not avoided. The admonishments — in the form of Dangers,

Warnings, and Cautions — must be followed at all times. These warnings are flagged by use of the triangular alert icon (seen below), and are listed in descending order of severity of injury or damage and likelihood of occurrence.

Danger: Danger is used to indicate the presence of a hazard that will cause severe personal

injury, death, or substantial property damage if the hazard is not avoided.

Warning: Warning is used to indicate the presence of a hazard that can cause severe personal

injury, death, or substantial property damage if the hazard is not avoided.

Caution: Caution is used to indicate the presence of a hazard that will or can cause minor

personal injury or property damage if the hazard is not avoided.

GENERAL SAFETY PRECAUTIONS

Danger: This equipment uses a Class 1 Laser according to FDA/CDRH rules. Laser radiation

can seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do not look directly into the optical transceiver of any digital unit or exposure to laser radiation may result. An optical power meter should be used to verify active fibers. A protective cap or hood

MUST be immediately placed over any radiating transceiver or optical fiber connector to avoid the potential of dangerous amounts of radiation exposure. This practice also prevents dirt particles from entering the adapter or connector.

Danger: Do not look into the ends of any optical fiber. Exposure to laser radiation may result.

Do not assume laser power is turned-off or the fiber is disconnected at the other end.

Danger: Wet conditions increase the potential for receiving an electrical shock when installing

or using electrically-powered equipment. To prevent electrical shock, never install or use electrical equipment in a wet location or during a lightning storm.

Warning: The HU is powered by 48 VDC power which is supplied over customer-provided

wiring. To prevent electrical shock when installing or modifying the HU power wiring, disconnect the wiring at the power source before working with uninsulated wires or terminals.

Caution: Always allow sufficient fiber length to permit routing of patch cords and pigtails

without severe bends. Fiber optic patch cords or pigtails may be permanently damaged if bent or curved to a radius of less than 2 inches (50 mm).

Page viii

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Preface

STANDARDS CERTIFICATION

FCC: This equipment complies with the applicable sections of Title 47 CFR Part 90.

Installation requirements the licensee needs to follow are listed in Title 47 CFR 90.635. This document may be found at the following website: http://www.access.gpo.gov/nara/cfr/ waisidx_03/47cfr90_03.html.

UL/CUL: This equipment complies with UL and CUL 50 Standard for Enclosures for

Electrical Equipment. This equipment provides the degree of protection specified by IP43 as defined in IEC Publication 529.

FDA/CDRH: This equipment uses a Class 1 LASER according to FDA/CDRH Rules. This

product conforms to all applicable standards of 21 CFR Part 1040.

IC: This equipment complies with the applicable sections of RSS-131. The term “IC:” before the

radio certification number only signifies that Industry Canada Technical Specifications were met.

LIST OF ACRONYMS AND ABBREVIATIONS

The acronyms and abbreviations used in this manual are detailed in the following list:

AC

Alternating Current

ASCII

American Standard Code for Information Interchange

Att

Attenuation

AWG

American Wire Gauge

BER

Bit Error Rate

C

Centigrade

CAN

Controller Area Network

CDRH

Center for Devices and Radiological Health

CD-ROM

Compact Disk Read Only Memory

COM

Common

COMM

Communication

Config

Configuration

CWDM

Coarse Wavelength Division Multiplexer

CUL

Canadian Underwriters Laboratories

DC

Direct Current

DCE

Data Communications Equipment

DTE

Data Terminal Equipment

EBTS

Enhanced Base Transceiver Station

EIA

Electronic Industries Association

EMS

Element Management System

ESD

Electrostatic Discharge

F

Fahrenheit

FCC

Federal Communications Commission

FDA

Food and Drug Administration

Page ix

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Preface

FSO

Free Space Optics

Fwd

Forward

GFCI

Ground Fault Circuit Interrupter

GUI

Graphical User Interface

HU

Host Unit

IC

Industry Canada

IP

Internet Protocol

LED

Light Emitting Diode

LPA

Linear Power Amplifier

LRCS

Long-Range Coverage Solution

MHz

Mega Hertz

MIB

Management Information Base

MPE

Maximum Permissible Exposure

MTBF

Mean Time Between Failure

NC

Normally Closed

NEM

Network Element Manager

NO

Normally Open

NOC

Network Operations Center

NPT

National Pipe Tapered

OSP

Outside Plant

PA

Power Amplifier

PC

Personal Computer

PCS

Personal Communications System

Prg

Program

Pwr

Power

Rev

Reverse

RF

Radio Frequency

RIM

Radio Interface Module

RMA

Return Material Authorization

RU

Remote Unit

RX

Receive or Receiver

SNMP

Simple Network Management Protocol

SMR

Specialized Mobile Radio

STM

Spectrum Transport Module

TX

Transmit or Transmitter

UL

Underwriters Laboratories

VAC

Volts Alternating Current

VDC

Volts Direct Current

VSWR

Voltage Standing Wave Ratio

WECO

Western Electric Company

WDM

Wavelength Division Multiplexer

Page x

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

SECTION 1: OVERVIEW

1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

2 LRCS SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

2.1

Basic System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

2.2

Enhanced Base Transceiver Station Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2.3

Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2.4

Local Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2.5

Network Operations Center Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

2.6

SNMP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

3 SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

3.1

Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

3.2

Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

3.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

3.4

Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

3.5

Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

_________________________________________________________________________________________________________

1 INTRODUCTION

This section provides basic description, application, and configuration information about the

Digivance Long-Range Coverage Solution (LRCS) system. Throughout this publication, all items referenced as “accessory items” are not furnished with the basic product and must be purchased separately.

2 LRCS SYSTEM OVERVIEW

The Digivance LRCS system is an RF signal transport system that provides long-range RF coverage in areas where it is impractical to place an Enhanced Base Transceiver Station (EBTS) at the antenna site. High real estate costs and community restrictions on tower and equipment locations often make it difficult to install the EBTS at the same location as the antenna. The

Digivance LRCS system is designed to overcome equipment placement problems by allowing base stations to be hubbed at a central location while placing antennas at remote locations with minimal real estate requirements. With the Digivance LRCS system, RF signals can be transported to remote locations to expand coverage into areas not receiving service or to extend coverage into difficult to reach areas such as canyons, tunnels, or underground roadways.

2.1

Basic System Components

The basic components of a typical Digivance LRCS system and their function are shown in

Figure 1-1

. A basic LRCS system consists of a Host Unit (HU) and a Remote Unit (RU). The

HU consists of a single-unit assembly that mounts in a standard equipment rack. The RU consists of multiple electronic and optical modules that mount in either an outdoor cabinet or an indoor mounting shelf. Control and monitoring functions are provided by the Digivance

Element Management System (EMS). In addition, various accessory items including a back-up battery for the RU, a passive Wavelength Division Multiplexer (WDM) system, and an active

Coarse Wavelength Division Multiplexer (CWDM) system are available as accessories.

Page 1-1

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

BASE STATION

ANTENNA

ENHANSED

BASE

TRANSCEIVER

STATION 1

ENHANSED

BASE

TRANSCEIVER

STATION 2

RF

HOST UNIT 1

CONTROLLER

AREA

NETWORK

WDM

WDM

REMOTE

UNIT 1

ENHANSED

BASE

TRANSCEIVER

STATION 3

RF

HOST UNIT 2

CWDM

CWDM

REMOTE

UNIT 2

NETWORK

OPERATIONS

CENTER

(REMOTE

INTERFACE)

RF

CONTROLLER

AREA

NETWORK

T1, DS0

WITH RS232

CONVERSION,

OR OTHER

MEDIUM

HOST UNIT 3

CWDM CWDM

REMOTE

UNIT 3

RS-232

RS-232

ASCII

RS-232

RS-232

NETWORK SNMP

MANAGER

ETHERNET

LAN

PC COMPUTER WITH EMS

AND SNMP PROXY AGENT

(PERMANENT CONNECTION)

PC COMPUTER WITH EMS

(TEMPORARY CONNECTION)

CD-ROM WITH SNMP PROXY

AGENT SOFTWARE

CD-ROM WITH EMS

SOFTWARE

20007-A

Figure 1-1. System Overview Diagram

Page 1-2

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

2.2

Enhanced Base Transceiver Station Interface

The HU is interfaced with an EBTS over coaxial cables as shown in

Figure 1-2 . The EBTS

provides the RF channel inputs and outputs for a designated sector. In the forward path, the HU receives two RF inputs from the EBTS. The HU digitizes the RF signals and then converts them to digital optical signals for transport to the RU. In the reverse path, the HU receives digital optical signals from the RU. The HU converts the digital optical signals back to two RF outputs which are supplied to the EBTS over the coaxial cable interface.

FORWARD

PATHS

ENHANCED

BASE

TRANSCEIVER

STATION

RF

HOST UNIT

REVERSE

PATHS

20008-A

Figure 1-2. EBTS/HU Interface

2.3

Handset Interface

The RU interfaces with the handsets (cell phones) through an antenna. In the reverse path, the

RU receives RF signals from each handset (see

Figure 1-1

). The RU digitizes the RF signals and then converts them to digital optical signals for transport to the HU over the optical fiber link. In the forward path, the RU receives digital optical signals from the HU. The RU converts the optical signals to RF signals for transmission to the handsets. The RU is connected to an antenna (not provided) which transmits and receives the handset RF signals.

2.4

Local Interface

Communications with an individual Digivance system is supported through a local interface

capability as shown in Figure 1-3

. A local interface requires a PC-type computer loaded with the Digivance Element Management System (EMS) software. EMS provides the various control and monitoring functions required to locally manage a Digivance system. The EMS computer can be directly connected to either the HU or RU through the computer’s RS-232 port.

Operation is implemented through the EMS Graphical User Interface (GUI). The GUI consists of a series of screens from which the user selects the desired option or function. An RS-232 service port is provided on both the HU and the RU for connecting the EMS computer.

Page 1-3

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

HOST UNIT

REMOTE

UNIT

RS-232

RS-232

CD-ROM WITH DIGIVANCE

ELEMENT MANAGEMENT

SYSTEM (EMS) SOFTWARE

LAPTOP WITH EMS

(LOCAL INTERFACE)

LAPTOP WITH EMS

(LOCAL INTERFACE)

18524-A

Figure 1-3. Local Management of a Single Digivance System

An EMS computer may be used to locally manage a networked group of multiple Digivance systems as shown in

Figure 1-4 . A Controller Area Network (CAN) port is provided on each

HU. Up to twenty-four HU’s may be linked together through the CAN interface and controlled by the same EMS computer. All the networked HU’s and the associated RU’s may be managed by connecting the EMS computer to one HU. The EMS computer provides an RS-232 port (#1) to support the interface with the networked HU’s.

HOST UNIT

REMOTE

UNIT

CAN

HOST UNIT

REMOTE

UNIT

HOST UNIT

CAN

REMOTE

UNIT

RS-232

PC COMPUTER WITH EMS

(LOCAL INTERFACE WITH

MULTIPLE SYSTEMS)

CD-ROM WITH DIGIVANCE

ELEMENT MANAGEMENT

SYSTEM (EMS) SOFTWARE

20009-A

Figure 1-4. Local Management of Networked Digivance Systems

Page 1-4

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

2.5

Network Operations Center Interface

Communications between a Network Operations Center (NOC) and a networked group of multiple Digivance systems is supported by a NOC interface capability as shown in

Figure 1-5 .

To support the NOC interface, a PC-type computer loaded with the Digivance Element

Management System (EMS) software is required. EMS provides the various control and monitoring functions required to remotely manage multiple Digivance systems through the

NOC interface.

A Controller Area Network (CAN) port is provided on each HU. Up to twenty-four HU’s may be linked together through the CAN interface and controlled by the same EMS computer. All the networked HU’s and the associated RU’s may be managed by connecting the EMS computer to one HU. The EMS computer provides an RS-232 port (#1) to support the interface with the networked HU’s.

The NOC can be linked to the EMS computer through a T1 system, DS0 with RS232 conversion, or some other medium. The EMS computer provides an RS-232 ASCII interface port (#2) to support the interface with the NOC.

At the NOC, control and monitoring of the networked Digivance systems is implemented through a Network Element Manager (NEM) interface which requires only a VT100 terminal/ emulator for operation. The NEM interface language consists of simple ASCII text strings. All communications are input as either SET or GET commands which result in ASCII text string responses from the specified system or systems.

HOST UNIT

REMOTE

UNIT

HOST UNIT

CAN

REMOTE

UNIT

NETWORK

OPERATIONS

CENTER

(REMOTE

INTERFACE)

HOST UNIT

CAN

T1, DS0

WITH RS232

CONVERSION,

OR OTHER

MEDIUM

REMOTE

UNIT

RS-232

ASCII

RS-232

CD-ROM WITH EMS

SOFTWARE

PC COMPUTER WITH

EMS SOFTWARE

20010-A

Figure 1-5. Remote Management of Networked Digivance Systems Through NOC Interface

Page 1-5

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

2.6

SNMP Interface

Communications between an external Simple Network Management Protocol (SNMP) Manager and a networked group of multiple Digivance systems is supported by an SNMP interface

capability as shown in Figure 1-6

. To support the SNMP interface, a PC-type computer loaded with both the Digivance Element Management System (EMS) software and the SNMP Proxy

Agent software is required. The EMS and SNMP Proxy Agent software plus the associated

Management Information Base (MIB) provide the various control (Set) and monitoring (Get) functions required to remotely manage multiple Digivance systems using an SNMP Manager.

A Controller Area Network (CAN) port is provided on each HU. Up to twenty-four HU’s may be linked together through the CAN interface and controlled by the same EMS computer. All the networked HU’s and the associated RU’s may be managed by connecting the EMS computer to one HU. The EMS computer provides an RS-232 port (#1) to support the interface with the networked HU’s.

The SNMP Manager may be linked with the EMS computer through a Local Area Network

(LAN). The EMS computer provides an Ethernet port to support the interface with the LAN.

The SNMP Proxy Agent supports two versions of the SNMP protocol: SNMPv1 and SNMPv2c.

A facility to Register/Unregister an SNMP Manager for receiving traps is also supported by the

SNMP Proxy Agent. The SNMP Manager is an option and must be ordered separately from the

EMS software.

HOST UNIT

REMOTE

UNIT

HOST UNIT

CAN

NETWORK

SNMP

MANAGER

REMOTE

UNIT

CAN

ETHERNET

HOST UNIT

REMOTE

UNIT

LOCAL

AREA

NETWORK

ETHERNET

RS-232

CD-ROM WITH EMS

SOFTWARE

CD-ROM WITH SNMP

PROXY AGENT SOFTWARE

PC COMPUTER WITH EMS

AND SNMP PROXY AGENT

20011-A

Figure 1-6. Remote Management of Networked Digivance Systems Through SNMP Manager

Page 1-6

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

3 SYSTEM FUNCTIONS AND FEATURES

This section describes various system level functions and features of the Digivance system.

3.1

Fiber Optic Transport

In a typical Digivance system, the HU is connected to the RU over two single-mode optical fibers. One fiber is used to transport the forward path optical signal. The other fiber is used to transport the reverse path optical signal. Because the optical signal is digital, the input and output RF signal levels at the HU or the RU are not dependent on the level of the optical signal or the length of the optical fiber. A diagram of the fiber optic transport system for a typical

Digivance system is shown in

Figure 1-7 .

HOST UNIT

FIBER OPTIC

LINK

FORWARD PATH

REVERSE PATH

REMOTE

UNIT

18526-A

Figure 1-7. Standard Fiber Optic Transport Application

The maximum length of the optical links is dependent on the loss specifications of the optical fiber and the losses imposed by the various connectors and splices. The basic system provides an optical budget of 25 dB (typical) when used with 9/125 single-mode fiber.

In some applications, it may be desirable or necessary to combine the forward path and reverse path optical signals from a single HU/RU pair onto a single optical fiber. This can be accomplished by using a passive bi-directional Wavelength Division Multiplexer (WDM) system. The optical wavelengths used in the Digivance system are 1550 nm for the forward path and 1310 nm for the reverse path. Because different wavelengths are used for the forward and reverse paths, both signals can be combined on a single optical fiber. One WDM module is mounted with the HU and the other WDM module is mounted with the RU as shown in

Figure 1-8

. The WDM system is available as an accessory item.

HOST UNIT

WDM

FIBER OPTIC

LINK

FORWARD AND

REVERSE PATH

WDM

REMOTE

UNIT

18527-A

Figure 1-8. Wavelength Division Multiplexer Application

Page 1-7

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

In some applications, it may be desirable or necessary to combine the forward and reverse path optical signals from multiple HU’s and RU’s onto a single optical fiber. This can be accomplished by using an active Coarse Wavelength Division Multiplexer (CWDM) system. Up to four Digivance systems may be configured to operate over a single optical fiber. A CWDM module is mounted with each HU and RU. An example of a typical CWDM application is

shown in Figure 1-9 .

HOST UNIT 1

FIBER OPTIC

LINK

CWDM

A

CWDM

A

REMOTE

UNIT 1

HOST UNIT 2

CWDM

B

CWDM

B

REMOTE

UNIT 2

FORWARD AND

REVERSE PATH

HOST UNIT 3

CWDM

C

CWDM

C

REMOTE

UNIT 3

HOST UNIT 4

Figure 1-9. Coarse Wavelength Division Multiplexer Application

A Free Space Optics (FSO) system (that meets the Digivance LRCS data rate performance and

BER requirements) may be used in applications where it is desirable or necessary to bridge an open span and where it is impractical to lay a fiber optic cable. One FSO transceiver unit may be mounted on the HU side of the open span and the other FSO transceiver unit may be mounted on the RU side of the open span. A system diagram of an FSO application is shown in

Figure 1-10 . FSO systems are available from various equipment manufacturers.

HOST UNIT

CWDM

D

CWDM

D

FREE SPACE OPTICS LINK

FORWARD PATH

REVERSE PATH

FSO

TX/RX

FSO

TX/RX

FORWARD PATH

REVERSE PATH

REMOTE

UNIT 4

18528-A

REMOTE

UNIT

18530-A

Figure 1-10. Free Space Optics Application

Page 1-8

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

3.2

Control and Monitoring Software

The EMS software and the SNMP Proxy Agent software provide control and monitoring functions for the Digivance system through the local, NOC, and SNMP interfaces. The EMS software package supports the local and NOC interfaces but does not include the SNMP Proxy

Agent software which must be ordered separately. Both the EMS and the SNMP Proxy Agent software are required to support the SNMP interface. All software files are provided on CD-

ROM’s. Software installation consists of copying the software files from the CD-ROM’s to a designated directory on the hard-drive of the EMS computer.

The EMS software provides the capability to provision and configure the Digivance system for operation. This includes selecting a site name, setting alarm thresholds, and setting forward and reverse path RF gain adjustments. The EMS software also provides the capability to get alarm messages (individual or summary), obtain data measurements, and to upgrade the HU/RU system software. All control and monitor functions (except software upgrade which is not supported by the NOC/NEM and SNMP interfaces and HU/RU pair site number assignment which is not supported by the SNMP interface) may be implemented using the NOC/NEM interface, the SNMP interface, or the EMS software GUI.

3.3

Fault Detection and Alarm Reporting

LED indicators are provided on the front panel of the HU and on the front panels of the RU modules to indicate if the system is normal or if a fault is detected. In addition, normally open and normally closed alarm contacts (for both major and minor alarms) are provided at the HU for connection to a customer-provided external alarm system. All alarms can also be accessed through the NOC/NEM interface, SNMP manager, or the EMS software GUI.

3.4

Powering

The HU is powered by ±24 or ±48 VDC and must be hard-wired to a local office battery power source through a fuse panel. A screw-down terminal strip is provided on the rear side of the HU for the power connections.

The RU is powered by 120 or 240 VAC power (50 or 60 Hz) and must be connected to a 20 Amp

AC power source. If the RU modules are installed in an outdoor cabinet, the AC wiring is placed in conduit and permanently connected to the internal cabinet wiring. If the RU modules are installed in an indoor mounting shelf, a standard three-conductor AC power cord is provided for connection to a standard AC power outlet. A back-up battery system is available for specified outdoor cabinets as an accessory. The battery-backup system powers the RU if the AC power source is disconnected or fails.

3.5

Equipment Mounting and Configuration

The HU is a single-unit assembly that is designed for mounting in a non-condensing indoor environment such as inside a wiring closet or within an environmentally-controlled cabinet. The

HU is intended for rack-mount applications and may installed (usually within 20 feet of the

EBTS) in either a 19- or 23-inch, WECO or EIA, equipment rack.

Page 1-9

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 1: Overview

The RU is designed for mounting in either an indoor or outdoor environment. The RU consists of a Spectrum Transport Module (STM), a Linear Power Amplifier (LPA) module, WDM remote module (accessory), CWDM remote module (accessory), and either an outdoor cabinet or a indoor mounting shelf.

Several types of outdoor cabinets are available. Each outdoor cabinet is weather-tight but contact with salt-air mist should be avoided as it may degrade the MTBF of the product. Outdoor cabinets can be mounted from a flat-vertical surface or a utility pole (requires pole-mount kit). Slots are provided within each cabinet for mounting the STM and LPA modules and also the WDM or CWDM remote modules. Storage spools are provided within the cabinet for storing short lengths of excess fiber slack. Specified cabinets include a tray with a heated base for mounting a back-up battery (accessory item).

An indoor mounting shelf for indoor use is also available. The indoor mounting shelf is designed for installation in a non-condensing indoor environment such as inside a wiring closet or within an environmentally-controlled cabinet. The indoor mounting shelf installs in a standard EIA or WECO, 19- or 23-inch, equipment rack. Slots are provided within the mounting shelf for mounting the STM and LPA modules and also the WDM or CWDM remote modules.

Page 1-10

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

SECTION 2: DESCRIPTION

Content Page

1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2 HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.1

Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.2

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

2.4

RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

2.5

RF Signal Level Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.6

Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.7

Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.8

Controller Area Network Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.9

Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.10 Auxiliary Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.11 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.12 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.13 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

3 SPECTRUM TRANSPORT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

3.1

Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

3.2

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

3.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

3.4

Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.5

RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.6

Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.7

Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.8

Auxiliary Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.9

Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

3.10 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

3.11 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

4 35 WATT LINEAR POWER AMPLIFIER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

4.1

Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

4.2

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.3

Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.4

Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.5

Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

4.6

User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

5 REMOTE UNIT MOUNTING SHELF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

5.1

Indoor Mounting Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

6 SLIM-STYLE REMOTE UNIT CABINETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

6.1

Slim-Style Single-STM Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

6.2

Slim-Style Dual-STM Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

7 ACCESSORY ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

7.1

Remote Unit Back-up Battery Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

7.2

Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

7.3

Coarse Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

8 DIGIVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

8.1

Digivance EMS Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

8.2

Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

8.3

Computer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

8.4

Digivance EMS Computer Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

8.5

Digivance EMS User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

9 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

_________________________________________________________________________________________________________

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

1 INTRODUCTION

This section describes the basic components of a typical Digivance 800/900 MHz SMR LRCS system including the Host Unit (HU) and Remote Unit (RU). The HU consists of a single rackmount chassis. The RU consists of a Spectrum Transport Module (STM); a 35 Watt Linear

Power Amplifier (LPA) module; and either an outdoor cabinet or an indoor mounting shelf.

Also described in this section are various accessory items that may be used with the HU and RU including the Wavelength Division Multiplexer (WDM) system, Coarse Wavelength Division

Multiplexer (CWDM) system, and RU back-up battery kit.

2 HOST UNIT

The HU, shown in

Figure 2-1 , provides the following basic functions:

• Provides an adjustable RF interface with the BTS.

• Provides a fiber optic interface with the RU.

• Digitizes the two forward path composite RF signals.

• Converts the two digitized forward path RF signals to a digital optical signal.

• Converts the digitized reverse path optical signal to two digitized RF signals.

• Converts the two digitized reverse path RF signals to two composite RF signals.

• Sends alarm information to an external alarm system through relay contact closures

• Provides an RS-232 interface for connecting the EMS computer.

• Provides an RS-232 interface for an auxiliary communications link with remote equipment.

• Provides a CAN interface for networking multiple HUs.

2.1

Primary Components

The HU consists of an electronic circuit board assembly and a fan assembly that are mounted within a powder-paint coated sheet metal enclosure. The enclosure provides a mounting point for the circuit board and fan assemblies and controls RF emissions. The only user-replaceable component is the fan assembly. The HU is designed for use within a non-condensing indoor environment such as inside a wiring closet or cabinet. The RF connectors, optical connectors, alarm output connectors, DC power terminal strip, and grounding lug are mounted on the HU rear panel. The On/Off power switch, LED indicators, service interface connector, and

Controller Area Network (CAN) connectors are mounted on the HU front panel.

2.2

Mounting

The HU is intended for rack-mount applications. A pair of reversible mounting brackets is provided that allow the HU to be mounted in either a 19-inch or 23-inch EIA or WECO equipment rack. When installed, the front panel of the HU is flush with the front of the rack.

Screws are provided for securing the HU to the equipment rack.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

17.1 INCHES

(433 mm)

FRONT PANEL

MOUNTING

BRACKET

(BOTH SIDES)

3.5 INCHES

(88 mm)

12.2 INCHES

(311 mm)

20020-A

Figure 2-1. Host Unit

2.3

Fault Detection and Alarm Reporting

The HU detects and reports various internal and external faults including host unit fault, optical fault, power fault, temperature fault, and RF fault. Various front panel Light Emitting Diode

(LED) indicators turn from green to red or yellow if a fault is detected. A set of alarm contacts

(normally open and normally closed) are provided for reporting an alarm to an external alarm system when a fault is detected. Both major alarm (system operation seriously affected) and minor alarm (system operation not affected or only slightly degraded) contacts are provided.

Fault and alarm information may also be accessed locally through the EMS software GUI or remotely through the NOC/NEM interface or SNMP interface. An alarm history file is maintained by the EMS software so that a record is kept of all alarms as they occur. This is useful when an alarm is reported and cleared before the reason for the alarm can be determined.

The status of the HU, the alarm state (major or minor), and other alarm information is summarized and reported over the service interface, the CAN interface, and the optical interface to the RU. In addition, the status of the RU is transmitted to the HU over the optical interface and reported over the service interface and the CAN interface.

2.4

RF Signal Connections

The RF signal connections between the HU and the EBTS are supported through four N-type female connectors. Two connectors are used for the forward path RF signals. The other two connectors are used for the reverse path RF signals. In most installations, it is usually necessary to install external attenuators to support the RF interface between the HU and the EBTS. The

HU should be as close as possible to the EBTS to minimize coaxial cable losses.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

2.5

RF Signal Level Adjustments

The HU is equipped with several attenuators for adjusting the signal levels of the forward and reverse path RF signals. The attenuators provide an attenuation adjustment range of 0 to 31 dB and can be set in 1 dB increments. The attenuators are software controlled and are adjusted through the EMS software GUI, NOC/NEM interface, or SNMP interface.

The host forward path attenuators adjust the level of the two input RF signals to the HU.

Using the forward path attenuator, an input signal with a nominal composite signal level of

–9 dBm to –40 dBm can be adjusted to produce maximum power output. Additional external

attenuation is required if the input signal level is greater than –9 dBm.

Note: The optimum composite RF input signal level is –20 dBm.

The host reverse path attenuators adjust the level of the two output RF signals from the HU and will add from –1 dB of gain (attenuator set to 31 dB) to +30 dB of gain (attenuator set to 0 dB) to the two RF output signals at the HU.

2.6

Propagation Delay

The HU forward and reverse path propagation delays may be adjusted in 0.1

µsec increments within a range of 0 to 63

µs. The propagation delay is software controlled and may be adjusted through the EMS software GUI, NOC/NEM interface, or SNMP interface.

2.7

Optical Connection

Optical connections between the HU and the RU (STM) are supported through two SC-type optical connector ports. One port is used for the forward path optical signal connection and the other port is used for the reverse path optical signal connection.

2.8

Controller Area Network Interface Connection

Controller Area Network (CAN) interface connections between multiple HUs are supported by a pair of RJ-45 jacks. One of the jacks is designated as the network IN port and the other jack is designated as the network OUT port. The CAN interface allows up to 24 HUs to be connected together (in daisy-chain fashion) and controlled through a single EMS computer.

2.9

Service Interface Connection

The service interface connection between the HU and the EMS computer is supported by a single DB-9 female connector. The service connector provides an RS-232 DTE interface. When multiple HUs are networked together, the supporting EMS computer may be connected to the service connector of any one of the networked HUs.

2.10 Auxiliary Interface Connector

An auxiliary communication link is provided between the HU and the STM for customer use.

The auxiliary interface is supported by a single DB-9 female connector. The auxiliary connector provides an RS-232 DTE interface. The auxiliary communications link can be used to remotely monitor and control other network equipment that may be located at the remote unit site.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

2.11 Powering

The HU is powered by

± 21 to ± 60 VDC power (nominal

± 24 or ± 48 VDC)

. The power is fed to the HU through a screw-down type terminal strip located on the rear side of the unit. Power to the HU must be supplied through a fuse panel such as the PowerWorx GMT Series Fuse Panel

(available separately). The power circuit for each HU must be protected with a 3 Amp GMT fuse. An On/Off switch is provided on the HU front panel.

2.12 Cooling

Continuous airflow for cooling is provided by dual fans mounted on the right side of the HU housing. A minimum of 3 inches (76 mm) of clearance space must be provided on both the left and right sides of the HU for air intake and exhaust. An alarm is generated if a high temperature condition (>50º C/122º F) occurs. The fans may be field-replaced if either fan fails.

2.13 User Interface

The HU user interface consists of the various connectors, switches, terminals, and LEDs that are provided on the HU front and rear panels. The HU user interface points are indicated in

Figure 2-2

and described in

Table 2-1 .

FRONT VIEW

(1) DC POWER

ON/OFF SWITCH

(REFERENCE

ITEMS 2 - 8)

LED INDICATORS

(9) SERVICE

INTERFACE

CONNECTOR

(11) NET IN

CONNECTOR

(10) AUXILIARY

CONNECTOR

(12) NET OUT

CONNECTOR

(13) 806-824

REVERSE

(14) 896-901

REVERSE

(15) 851-869

FORWARD

(16) 935-940

FORWARD

(17) DC POWER

TERMINAL STRIP

(18) COVER PLATE

REAR VIEW

(19) ALARM

OUTPUT CONNECTOR

Figure 2-2. Typical Host Unit User Interface

(20)

FWD

(21)

REV

(22)

GROUNDING

STUD

20021-A

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

Table 2-1. Host Unit User Interface

REF

NO

1 I/0

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

USER INTERFACE

DESIGNATION

POWER

STANDBY

HOST UNIT

REMOTE UNIT

DRIVE 851–869

FWD/REV

(PORT 1/PORT 2)

DRIVE 935–940

SERVICE

AUXILIARY

NET IN

NET OUT

806–824 REVERSE

896–901 REVERSE

851–869 FORWARD

935–940 FORWARD

DEVICE

FUNCTIONAL

DESCRIPTION

Provides DC power on/off control. On/Off rocker switch

Multi-colored LED

(green/yellow)

Multi-colored LED

(green/yellow/red)

Indicates if the HU is powered (green) or unpowered (off). See Note.

Multi-colored LED

(green/yellow/red)

Multi-colored LED

(green/yellow/red)

Multi-colored LED

(green/yellow/red)

Multi-colored LED

(green/red)

Multi-colored LED

(green/yellow/red)

Indicates if the system is in the Normal (off),

Standby (blinking green), Test (blinking red), or

Program Load (blinking yellow) state. See Note.

Indicates if the HU is normal (green), overheated

(yellow), or faulty (red). See Note.

Indicates if no alarms (green), a minor alarm

(yellow), or a major alarm (red) is reported by the

RU. See Note.

Indicates if the level of the 851–869 MHz RF input signal to the HU is normal (green), low

(yellow), or high (red). See Note.

Indicates if the reverse/forward path optical signals from the STM/HU are normal (green), if no signals are detected (red), or if excessive errors are detected (red). See Note.

Indicates if the level of the 935–940 MHz RF input signal to the HU is normal (green), low

(yellow), or high (red). See Note.

DB-9 connector

(female)

DB-9 connector

(female)

Connection point for the RS-232 service interface cable.

Connection point for the RS-232 auxiliary interface cable.

RJ-45 jack (female) Connection point for the CAN interface input cable.

RJ-45 jack (female) Connection point for the CAN interface output cable.

N-type female RF coaxial connector

N-type female RF coaxial connector

N-type female RF coaxial connector

N-type female RF coaxial connector

17 POWER 24–48 VDC Screw-type terminal strip

18 No designation Cover plate

Output connection point for the 806–824 MHz reverse path RF coaxial cable.

Output connection point for the 896–901 MHz reverse path RF coaxial cable.

Input connection point for the 851–869 MHz forward path RF coaxial cable.

Input connection point for the 935–940 MHz forward path RF coaxial cable.

Connection point for the DC power wiring.

Covers the mounting slot for the wavelength division multiplexer module.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

REF

NO

USER INTERFACE

DESIGNATION

19 ALARM OUTPUT

20

21

22

FWD (PORT 1)

REV (PORT 2)

Table 2-1. Host Unit User Interface, continued

DEVICE

Screw-type terminal connector (14–26

AWG)

SC connector

(single-mode)

SC connector

(single-mode)

FUNCTIONAL

DESCRIPTION

Connection point for an external alarm system.

Includes normally open (NO), normally closed

(NC), and common (COM) wiring connections.

Output connection point for the forward path optical fiber.

Input connection point for the reverse path primary optical fiber.

Chassis ground stud Connection point for a chassis grounding wire.

Note: A more detailed description of LED operation is provided in Section 4.

3 SPECTRUM TRANSPORT MODULE

The STM, shown in Figure 2-3

, provides the following basic functions:

• Provides an RF interface (antenna port) for the remote antenna(s).

• Provides an optical interface for the HU.

• Converts the digitized forward path optical signal to digitized RF signals.

• Converts the digitized forward path RF signals to one composite RF signal.

• Digitizes the two reverse path composite RF signals.

• Converts the digitized reverse path RF signals to a digitized optical signal.

• Provides an RS-232 interface for connecting a local EMS computer.

• Provides an RS-232 interface for an auxiliary communications link with remote equipment.

• Transports alarm, control, and monitoring information to the HU via the optical interface.

• Accepts AC power input and battery power input.

• Accepts external alarm input.

3.1

Primary Components

The STM consists of an electronic circuit board assembly, power supply, quadraplexer, and fan assembly that are mounted within a powder-paint coated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic components and controls RF emissions.

Except for the fan unit, the electronic components are not user replaceable. The STM is designed for use within the RU outdoor cabinet or indoor mounting shelf. Except for the LPA interface connector, all controls, connectors, indicators, and switches are mounted on the STM front panel for easy access. A carrying handle is provided on the front of the STM to facilitate installation and transport.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

3.2

Mounting

The STM mounts within the RU outdoor cabinet or indoor mounting shelf. Runners on the top and bottom of the STM mesh with tracks in the cabinet or mounting shelf. The runners and tracks guide the STM into the installed position. The electrical interface between the STM and

LPA is supported by a D-sub female connector located on the rear side of the STM. A corresponding D-sub male connector mounted at the rear of the RU cabinet or indoor mounting shelf mates with the STM connector. Captive screws are provided for securing the STM in the installed position.

20023-B

Figure 2-3. Typical Spectrum Transport Module

3.3

Fault Detection and Alarm Reporting

The STM detects and reports various faults including remote unit fault, optical fault, power fault, temperature fault, power amplifier fault, and external (cabinet door open) fault. Various front panel Light Emitting Diode (LED) indicators turn from green to red or yellow if a fault is detected. The status of the STM, the alarm state (major or minor), and other alarm information is summarized and reported over the optical interface to the HU and also over the service interface. In addition, the alarm state of the HU is received over the optical interface and reported to the service interface. Fault and alarm information may be accessed locally through the EMS software GUI or remotely through the NOC/NEM interface or SNMP interface.

Page 2-9

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

3.4

Antenna Cable Connection

The antenna cable connection between the STM and the antenna is supported through a single

N-type female connector. The single connector is used for the antenna cable which carries both the forward and primary reverse path RF signals.

3.5

RF Signal Level Adjustment

The STM is equipped with digital attenuators for adjusting the signal level of the forward path

RF output signals. The remote forward path attenuators adjust the level of the two output RF signals at the RU antenna port and will add from 0 to 31 dB of attenuation to the output signal level. The attenuator can be set in 1 dB increments. The attenuator is software controlled and is adjusted through the EMS software GUI, the NOC/NEM interface, or SNMP interface.

3.6

Optical Connection

Fiber optic connections between the STM and the HU are supported through two SC-type optical connector ports. One port is used for the forward path optical signal connection and the other port is used for the reverse path optical signal connection.

3.7

Service Interface Connection

The service interface connection between the STM and a local laptop computer loaded with the

EMS software is supported by a single DB-9 female connector. The service interface connector provides an RS-232 DTE interface. The STM service interface supports local communications with both the STM and the corresponding HU.

3.8

Auxiliary Interface Connection

An auxiliary communication link is provided between the HU and the STM for customer use.

The auxiliary interface is supported by a single DB-9 female connector. The auxiliary connector provides an RS-232 DTE interface. The auxiliary communications link can be used to remotely monitor and control other network equipment that may be located at the remote unit site such as the antenna.

3.9

Powering

The STM is powered by 120 or 240 VAC (50 or 60 Hz) power which is supplied through a three-conductor AC power cord. The power cord is provided with the RU outdoor cabinet or indoor mounting shelf. The power cord connects to a 3-wire AC connector mounted on the front panel. A switch on the STM front panel provides AC power On/Off control.

The STM (and the connected LPA) may be powered by a 24 VDC back-up battery system which is available as an accessory kit. A connector is provided on the STM front panel for the back-up battery system wiring harness connection.

Page 2-10

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

3.10 Cooling

Continuous air-flow for cooling is provided by a single fan mounted on the rear side of the STM housing. An alarm is generated if a high temperature condition (>50º C/122º F) occurs. If the temperature falls below 32º F (0º C), the fan automatically shuts off. The fan may be field replaced if it fails.

3.11 User Interface

The STM user interface consists of the various connectors, switches, and LEDs that are

provided on the STM front panel. The STM user interface points are indicated in Figure 2-4 and

described in Table 2-2 .

(1) FWD

CONNECTOR

(2) REV

CONNECTOR

(3) ON/OFF

SWITCH

(4) AC POWER

CONNECTOR

(5) DC POWER

CONNECTOR

(6) AUXILIARY

CONNECTOR

(7) SERVICE

CONNECTOR

(8-14) LED

INDICATORS

(15) ALARM

CONNECTOR

(16) ANTENNA

CONNECTOR

20022-B

Figure 2-4. Typical Spectrum Transport Module User Interface

Page 2-11

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

Table 2-2. Typical Spectrum Transport Module User Interface

REF

NO

3

I/0

4

USER INTERFACE

DESIGNATION

1 FWD

(PORT 1)

2 REV

(PORT 2)

No designation

DEVICE

SC connector

(single-mode)

SC connector

(single-mode)

On/Off rocker switch

3-wire AC power cord connector

2- wire DC power cord connector

DB-9 connector

(female)

FUNCTIONAL

DESCRIPTION

Input connection point for the forward path optical fiber.

Output connection point for the reverse path primary optical fiber.

Provides AC power on/off control.

Connection point for the AC power cord.

5

6

No designation

AUXILIARY

Connection point for the back-up battery power cord.

Connection point for the RS-232 auxiliary communications interface cable.

7

8

9

10

SERVICE

AC POWER

STANDBY

HOST UNIT

DB-9 connector

(female)

Multi-colored LED

(green/red)

Multi-colored LED

(green/yellow/red)

Multi-colored LED

(green/yellow/red)

Connection point for the RS-232 service interface cable.

Indicates if the STM is powered by the AC power source (green) or the back-up battery system

(red). See Note.

Indicates if the system is in the Normal state (off)

Standby state (blinking green), Test state (blinking red), or Program Load state (blinking yellow). See Note.

Indicates if no alarms (green), a minor alarm

(yellow), or a major alarm (red) is reported by the

HU. See Note.

Indicates if the STM is normal (green) or faulty

(red). See Note.

11

12

STM

PA

Multi-colored LED

(green/yellow/red)

Multi-colored LED

(green/yellow/red)

Indicates if the power amplifier is normal

(green), over temperature (yellow), has a fan failure (yellow), is turned off (red), or faulty (red).

See Note.

Indicates if the forward path VSWR is above

(red) or below (green) the fault threshold.

13

14

15

VSWR

FWD/REV

(PORT 1/PORT 2)

ALARM IN MINOR

ALARM IN MAJOR

Multi-colored LED

(green/yellow/red)

Multi-colored LED

(green/red)

Screw-type terminal connector (14–26

AWG)

Indicates if the forward path optical signal from the HU are normal (green), if no signal is detected (red), or errors are detected (red). See

Note.

Connection point for two external alarm inputs.

The door-open switch lead wires are typically connected to the major alarm terminals.

16 ANTENNA N-type female RF coaxial connector

Connection point for the antenna.

Note: A more detailed description of LED operation is provided in Section 4.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

4 35 WATT LINEAR POWER AMPLIFIER

The 35 Watt Linear Power Amplifier (LPA), shown in Figure 2-5

, works in conjunction with the

STM to amplify the forward path RF signal. The STM is interfaced with the LPA through the Dsub connectors and wiring harness located at the rear of the RU outdoor cabinet or indoor mounting shelf. The RF signal is passed to the LPA for amplification and then passed back to the STM for filtering and output via the STM’s ANTENNA port. The STM also supplies DC power to the LPA through the same interface.

4.1

Primary Components

The LPA consists of several electronic circuit board assemblies and two fan units that are mounted within a powder-paint coated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic components and controls RF emissions. Except for the fan units, the electronic components are not user replaceable. The LPA is designed for use with the

RU outdoor cabinets and the indoor mounting shelf. All controls, indicators, and switches are mounted on the LPA front panel for easy access. A carrying handle is provided on the front of the LPA to facilitate installation and transport.

19731-C

LPA XXX

Figure 2-5. 35 Watt Linear Power Amplifier Module

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

4.2

Mounting

The 35 Watt LPA mounts within the RU outdoor cabinets and the indoor mounting shelf.

Runners on the top and bottom of the LPA mesh with tracks within the cabinet or mounting shelf. The runners and tracks guide the LPA into the installed position. The electrical interface between the STM and LPA is supported by a D-sub female connector located on the rear side of the LPA. A corresponding D-sub male connector mounted at the rear of the RU outdoor cabinet or indoor mounting shelf mates with the LPA connector. Captive screws are provided for securing the LPA in the installed position.

4.3

Fault Detection and Alarm Reporting

The 35 Watt LPA, in conjunction with the STM, detects and reports various faults including power amplifier fault, output power fault, temperature fault, and fan fault. Various Light

Emitting Diode (LED) indicators, located on the front panel of the LPA, turn from green to red or yellow if an LPA fault is detected. In addition, a digital display located on the LPA front panel provides various fault messages. The status of the LPA, the alarm state (major or minor), and other more detailed information is summarized and reported (by the STM) over the optical interface to the HU and also to the service interface. This information may be accessed through the EMS software GUI, the NOC/NEM interface, or the SNMP interface.

4.4

Powering

The LPA is powered by various DC voltages which are supplied by the STM over the electrical interface provided by the D-sub connectors and wiring harness mounted within the RU outdoor cabinet or indoor mounting shelf.

4.5

Cooling

Continuous air-flow for cooling is provided by a pair of fans. In the previous version of the LPA, fans are mounted at the front and the rear side of the LPA housing. The front fan pulls cool air into the module and the rear fan exhausts heated air out of the module. In the new version of the

LPA, two front mounted fans pull cool air into the module. The heated air is exhausted out the back of the module. An alarm is provided that indicates if a high temperature condition (>50º C/

122º F) occurs or if a fan failure occurs. The fans may be field replaced if a failure occurs.

4.6

User Interface

The LPA user interface consists of the various LEDs, message displays, and switches that are provided on the LPA front panel. The LPA user interface points are indicated in

Figure 2-6 and described in Table 2-3 .

Page 2-14

© 2005, ADC Telecommunications, Inc.

(1) RESET

SWITCH

(2) RF ON/OFF

SWITCH

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

XXXXXXXX

XXXXXXXX

(3) FAIL

LED

(4) SHUTDOWN

LED

(5) DIGITAL

DISPLAY

LPA XXXX

19730-C

Figure 2-6. Linear Power Amplifier User Interface (Typical)

Table 2-3. Linear Power Amplifier User Interface

REF

NO

2

USER INTERFACE

DESIGNATION

1 RESET

RF ON OFF

DEVICE

Momentary contact push button switch

2-position switch

FUNCTIONAL

DESCRIPTION

Momentarily pressing the push button clears all alarms and restarts the amplifier

Placing the switch in the OFF position puts the LPA in the standby state with RF output disabled. With the switch off, the STM can not control the LPA output power. Placing the switch in the ON position puts the LPA in the normal state and allows the

STM to enable and disable the RF output.

3

4

FAIL

SHUTDOWN

LED indicator

(yellow)

Indicates the LPA is normal (off) or faulty

(yellow).

LED indicator (red) Indicates the LPA is in service (off) or shutdown

(red).

5 No designation Digital display Provides status and alarm messages. See Note.

Note: A more detailed description of the digital display messages is provided in Section 4.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

5 REMOTE UNIT MOUNTING SHELF

This section provides a brief description of the remote unit indoor mounting shelf. For complete information, refer to the Installation and Maintenance Manual for the mounting shelf.

5.1

Indoor Mounting Shelf

The indoor mounting shelf, shown in

Figure 2-7

, is a rack-mountable frame assembly that provides mounting slots for the STM, LPA, WDM (accessory), and CWDM (accessory) modules plus connectors and a wiring harness for interfacing the STM and LPA modules. The mounting shelf is designed for indoor installation in a 19- or 23-inch, EIA or WECO, equipment rack. The frame assembly is constructed of aluminum and steel and is painted putty white for corrosion protection. The indoor mounting shelf does not provide a mounting slot for a back-up battery.

16.06 IN.

(408 MM)

TOP VIEW

16.89 IN.

(429 MM)

14.15 IN.

(359 MM)

FRONT VIEW

Figure 2-7. indoor Mounting Shelf

19008-A

Page 2-16

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

The AC power, fiber optic, and antenna cables route to the front of the indoor mounting shelf for connection to the STM front panel. A lightning protector kit (accessory) is available separately if lightning protection is required. A grounding lug is provided on the side of the mounting shelf for connecting a grounding wire.

The indoor mounting shelf user interface consists primarily of the mounting slots and the AC and DC power cables. The user interface points are shown in

Figure 2-8 . For additional

information, refer to the Digivance LRCS System Indoor Remote Unit Installation and

Maintenance Manual (ADCP-75-160).

(7) CWDM DC

POWER CABLE

(6) CWDM

MOUNTING

SLOT

(5) WDM

MOUNTING

SLOT

19009-A

(4) AC POWER

CABLE

(1) STM

MOUNTING

SLOT

(2) LPA

MOUNTING

SLOT

(3) GROUNDING

STUDS (INSIDE)

Figure 2-8. indoor Mounting Shelf User Interface

6 SLIM-STYLE REMOTE UNIT CABINETS

This section provides a brief description of the slim-style remote unit cabinets. Four types of slim-style cabinets are available. For complete information, refer to the Installation and

Maintenance Manual for the cabinet.

Each slim-style cabinet enclosure is constructed of heavy gauge aluminum and is painted putty white for reduced solar loading and corrosion protection. Connection and entry points are provided in the bottom of the enclosure for the antenna coaxial cables, fiber optic cable, and AC power cable. Vent openings are provided in the bottom of the enclosure to permit air exchange for cooling.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

The slim-style cabinet is weather-tight, but contact with salt-air mist should be avoided as it may degrade the Mean Time Between Failure (MTBF) of the product. Drain hole openings in the bottom of the cabinet allow any moisture that does enter the cabinet to drain out. The cabinet door may be padlocked to prevent unauthorized entry. A door open switch is provided so that a customer-selectable major or minor alarm is generated whenever the cabinet door is opened.

The slim-style cabinet can be mounted on a flat vertical surface, a pedestal, or from a utility pole. A pedestal-mount kit (accessory) is available for pedestal-mount installations and a polemount kit (accessory) is available for pole-mount installations. A grounding lug is provided on the bottom of the cabinet for connecting a grounding wire.

6.1

Slim-Style Single-STM Cabinet

The slim-style single-STM cabinet, shown in

Figure 2-9 , is a NEMA-3R enclosure (with

removable dust filter) that houses the remote modules and protects them from the environment.

The cabinet consists of the enclosure, mounting slots for the STM and LPA modules, an AC power interface, a lightning protector, two fiber slack spools, and a mounting slot for a WDM or

CWDM (accessory) remote module.

20.7 IN

(526 MM)

40.4 INCHES

(1016 MM)

WITH BATTERY

31 INCHES

(787 MM)

W/O BATTERY

Page 2-18

© 2005, ADC Telecommunications, Inc.

19400-B

12.0 IN

(305 MM)

Figure 2-9. Slim-Style Single-STM Cabinet

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

On an optional basis, the cabinet is available either with or without a battery compartment. The battery compartment version provides a mounting tray for a back-up battery. The slim-style cabinet is designed for use in an outdoor environment but may be mounted indoors if required.

Opening the hinged door provides full access to the interior of the enclosure to facilitate module and cable installation.

The slim-style single-STM cabinet user interface consists of the various connectors, fittings, outlets, and switches that are provided on the interior and exterior of the enclosure. The user

interface points are indicated in Figure 2-10

and

Figure 2-11

. For additional information, refer to the Digivance LRCS System Slim-Style Single-STM Remote Unit W/Battery Installation and

Maintenance Manual (ADCP-75-165); or the Digivance LRCS System Slim-Style Single-STM

Remote Unit Without Battery Installation and Maintenance Manual (ADCP-75-173).

(4) BATTERY

TRAY

(5) WDM/CWDM

MOUNTING SLOT

(6) CWDM

POWER CORD

(7) DOOR

SWITCH

(3) STM

MOUNTING

SLOT

(8) AC

POWER CORD

(2) LPA

MOUNTING

SLOT

19295-B

(1) AIR INLET

FILTER

Figure 2-10. Slim-Style Single-STM Cabinet User Interface - Top Front View

Page 2-19

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

(15) CIRCUIT

BREAKER

RESET SWITCH

(9) FIBER

SLACK SPOOLS

BOTTOM VIEW

OF CABINET

19296-B

(14) 3/4-INCH NPT

THREADED HOLE

(13) GROUNDING

LUG

(10) FIBER CABLE

CONNECTOR

(11) PRIMARY LIGHTNING

PROTECTOR CONNECTOR

(12) DIVERSITY LIGHTNING

PROTECTOR CONNECTOR

(ACCESSORY)

Figure 2-11. Slim-Style Single-STM Cabinet User Interface - Bottom Front View

6.2

Slim-Style Dual-STM Cabinet

The slim-style dual-STM cabinet, shown in

Figure 2-12 , is a NEMA-3R enclosure (with

removable dust filter) that houses the remote modules and protects them from the environment.

The cabinet consists of the enclosure, mounting slots for the STM and LPA modules, an AC power interface, two lightning protectors, two fiber slack spools, and mounting slots for WDM or CWDM (accessory) remote modules.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

20.7 IN.

(526 MM)

40.4 INCHES

(1026 MM)

WITH BATTERY

31 INCHES

(787 MM)

W/O BATTERY

19573-A

18.8 IN

(478 MM)

Figure 2-12. Slim-Style Dual-STM Cabinet

On an optional basis, the cabinet is available either with or without a battery compartment. The battery compartment version provides a mounting tray for a back-up battery. The slim-style cabinet is designed for use in an outdoor environment but may be mounted indoors if required.

Opening the hinged door provides full access to the interior of the enclosure to facilitate module and cable installation.

The slim-style dual-STM cabinet user interface consists of the various connectors, fittings, outlets, and switches that are provided on both the interior and exterior of the enclosure. The user interface points are indicated in

Figure 2-13 and

Figure 2-14 . For additional information,

refer to the Digivance Slim-Style Dual-STM Remote Unit W/Battery Installation and

Maintenance Manual (ADCP-75-172); or the Digivance Slim-Style Dual-STM Remote Unit

Without Battery Installation and Maintenance Manual (ADCP-75-174).

Page 2-21

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

(4) BATTERY

TRAYS

(5) WDM/CWDM

MOUNTING SLOTS

(6) CWDM

POWER CORD

(3) STM

MOUNTING

SLOTS

(2) LPA

MOUNTING

SLOTS

19424-B

(1) AIR INLET

FILTER

Figure 2-13. Slim-Style Dual-STM User Interface - Top Front View

(7) DOOR

SWITCH

(8) AC

POWER CORDS

Page 2-22

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

(9) FIBER

SLACK SPOOLS

(15) CIRCUIT

BREAKER

RESET SWITCH

19425-B

BOTTOM VIEW

OF CABINET

(10) FIBER CABLE

CONNECTOR

(13) 3/4-INCH NPT

THREADED HOLE

(11) PRIMARY LIGHTNING

PROTECTOR CONNECTORS

(12) DIVERSITY LIGHTNING

PROTECTOR CONNECTORS

(OPTION)

(14) GROUNDING

LUG

Figure 2-14. Slim-Style Dual-STM User Interface - Bottom Front View

7 ACCESSORY ITEMS

This section provides a brief description of various accessory items that are available separately.

The accessory items may or may not be required depending on the application.

7.1

Remote Unit Back-up Battery Kit

A back-up battery kit (accessory item), shown in Figure 2-15 , is available when the application

requires that the remote system remain operational during an AC power outage. A battery tray is provided within specified enclosures for mounting the battery. The tray includes a heating pad that keeps the battery warm during cold weather. A temperature sensor regulates the operation

Page 2-23

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description of the heating element and a circuit breaker provides overcurrent protection. The back-up battery kit includes a wiring harness for connecting the battery to the STM. During normal operation, the STM provides charging current to maintain the battery charge level. During an

AC power outage, the battery provides DC power to the STM to maintain system operation. The battery can maintain operation of the RU for approximately 1 hour with the 50 Watt LPA and 2 hours with the 20 Watt LPA.

17014-A

Figure 2-15. Back-Up Battery Kit

7.2

Wavelength Division Multiplexer System

The Wavelength Division Multiplexer (WDM) system is an accessory product that is used when it is desirable or necessary to combine the forward and reverse path optical signals from one

Digivance system onto a single optical fiber. Each WDM system consists of a host module, host module mounting shelf, and remote module. The WDM host module mounting shelf can support two WDM host modules. The RU indoor mounting shelf and the outdoor cabinets provide a mounting slot for installing a WDM remote module. The WDM host module and host module mounting shelf are shown in

Figure 2-16 . The WDM remote module is shown in

Figure 2-17 .

Page 2-24

© 2005, ADC Telecommunications, Inc.

18646-A

Figure 2-16. WDM Host Module and Host Module Mounting Shelf

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

17013-A

Figure 2-17. WDM Remote Module

Each WDM module consists of either one (remote module) or two (host module) bi-directional wavelength division multiplexers mounted within a powder-paint coated sheet metal enclosure.

An SC-type optical connector port is provided for connecting the forward/reverse path optical fiber to the WDM module. A pair of pigtail leads with SC-type connectors are provided for connecting the WDM module to the forward and reverse path optical ports on the HU or STM.

7.3

Coarse Wavelength Division Multiplexer System

The Coarse Wavelength Division Multiplexer (CWDM) system is an accessory product that is used when it is desirable or necessary to combine the forward and reverse path optical signals from up to four Digivance systems onto a single optical fiber. Each CWDM system consists of a

Host Module, Host Module mounting shelf, and Remote Module. The CWDM Host Module mounting shelf can support up to three CWDM Host Modules. The RU indoor mounting shelf and the outdoor cabinets provide a mounting slot for installing a CWDM Remote Module.

The CWDM Remote Module is shown in

Figure 2-18 . The CWDM Host Module and Host

Module Mounting Shelf are shown in Figure 2-19 . For complete information about the CWDM

system, refer to the Digivance System Coarse Wavelength Division Multiplexer User Manual

(ADCP-75-142).

18648-A

Figure 2-18. CWDM Remote Module

Page 2-25

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

18647-A

Figure 2-19. CWDM Host Module and Host Module Mounting Shelf

8 DIGIVANCE ELEMENT MANAGEMENT SYSTEM

The Digivance Element Management System (EMS) is a software-based network management tool that provides control and monitoring functions for the Digivance system. The Digivance

EMS is used to provision and configure new systems for operation, set system operating parameters, get system alarm and status messages, and upgrade the system software. The EMS supports local control by an on-site service technician and also remote control through a

Network Operations Center (NOC) interface. The EMS software together with the SNMP Agent software (available separately) is required to support the SNMP interface.

8.1

Digivance EMS Primary Components

The primary components of the Digivance EMS, shown in Figure 2-20 , are packaged separately

from the various Digivance hardware items and consist of the following items: User Manuals, mouse pad, license agreement, and CD-ROMs which contain both software and various technical publications. All software items install on a PC-type computer which is not provided.

A cable (DGVL-000000CBPC) for connecting the EMS computer to either the HU or RU is available separately as an accessory item.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

EMS CD-ROM: The EMS software and the Java 2 Version 1.3.1 Runtime Environment

software are loaded on the EMS CD-ROM. The EMS software provides local monitor and control functions through a Graphical User Interface (GUI) and remote monitor and control functions through the NOC/NEM interface. The EMS software ships with the system.

OR

NOTE: COMPUTER NOT PROVIDED

EMS CD-ROM MANUALS CD-ROM SNMP CD-ROM

(AVAILABLE

SEPARATELY)

MOUSE PAD

USER MANUALS

18705-B

Figure 2-20. Digivance Element Management System

Manuals CD-ROM: PDF files of the various Digivance technical publications are provided on

the Manuals CD-ROM. A copy of Acrobat Reader is required to open and print the publication files. A copy of Acrobat Reader may be downloaded free of charge from the Adobe.com

website if necessary. The manuals CD-ROM ships with the EMS software.

SNMP CD-ROM: The SNMP Proxy Agent software is available separately and is provided

only when ordered. The SNMP Proxy Agent together with the EMS provides for remote monitor and control functions through a network SNMP manager. If the SNMP interface is required for system operation, both the EMS software and SNMP Proxy Agent software must be installed on the same computer. The SNMP Proxy Agent software will not function without the EMS software.

Control Programs: The host and remote control programs are installed by the factory in each

respective host unit or STM. Updated versions of the host and remote control program software will be provided by Customer Service on a “as needed” basis.

Page 2-27

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

8.2

Software Installation

Software installation consists of inserting each software CD-ROM into the computer’s CD-

ROM drive and then running the software install programs. This places the EMS, Java 2

Runtime Environment, and SNMP Proxy Agent software files in assigned folders on the computer’s hard drive. Software installation instructions are provided in the Digivance Element

Management System User Manual (ADCP-75-151).

8.3

Computer Operation

Permanent control and monitoring functions may be provided by a PC-type desk-top computer that is permanently connected to a HU. The EMS program must be running in order for the

NOC interface to function. Both the EMS program and SNMP Proxy Agent program must be running in order for the SNMP interface to function. A PC-type lap-top computer running just the EMS program can be used as a portable network management tool for service and maintenance purposes. The laptop computer may be connected temporarily to a HU or RU to trouble-shoot problems on-site and then removed when the maintenance task is completed. The specifications for the EMS computer are provided in the Digivance Element Management

System User Manual (ADCP-75-151).

8.4

Digivance EMS Computer Interface Connections

The service interface connection between the EMS computer and the HU or RU requires that the EMS computer be equipped with a DB-9 connector that is configured to provide an RS-232

DCE interface. A straight-through RS-232 interface cable (accessory item) equipped with a male DB-9 connector on one end and a PC-compatible connector on the other end is required to link the EMS computer to the HU or RU. If multiple HUs are networked together using the

CAN interface, all units may be managed by connecting the EMS computer to the service connector on any one of the networked HUs.

The NOC interface connection between the EMS computer and the NOC requires that the EMS computer be equipped with a connector that is configured to provide an RS-232 ASCII interface. The link between the EMS computer and the NOC would generally be supported by a

T1 system, DS0 with RS232 conversion, or other medium. Cables and equipment (not provided) to support the RS-232 interface connection between the EMS computer and the NOC interface are required.

The SNMP interface connection between the EMS computer and the SNMP manager requires that the EMS computer be equipped with an Ethernet port. The link between the EMS computer and a network SNMP manager would generally be supported by a Local Area Network (LAN).

Cables and equipment (not provided) to support the connection between the EMS computer and the LAN are required.

Page 2-28

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

8.5

Digivance EMS User Interfaces

The Digivance EMS provides three user interfaces: the EMS Graphical User Interface (GUI), the Network Operation Center–Network Element Manager (NOC/NEM) interface, and the

SNMP GUI interface. The EMS GUI, the NOC interface, and the SNMP GUI provide the same basic functions. However, the NOC interface and the SNMP GUI cannot be used to download new system software to the Digivance system. In addition, the SNMP GUI cannot be used to assign a system site number to a HU/RU pair during installation.

The EMS GUI is used for local control and monitoring operations. The EMS GUI consists of a series of displays and screens, such as the one shown in

Figure 2-21 , that provide the user with

alarm and status information and that allow the user to set various operating parameters.

Directives are implemented by pointing and clicking on the desired action and also by entering text in various dialog boxes. Refer to the Digivance Element Management System User Manual

(ADCP-75-151) for additional information.

Figure 2-21. Graphical User Interface Host/Remote Display

The NOC/NEM interface is a text-based command line interface that is used for remote control and monitoring operations (except software download). The NOC/NEM interface consists of defined ASCII text strings that are input as SET or GET commands followed by the action or information required. A text string response is received from the specified Digivance system or systems to confirm the requested action or to report the requested information. Examples of several typical NOC-NEM interface commands and the responses received are shown in

Figure 2-22 . The NOC/NEM interface requires only a VT100 terminal/emulator or a PC-type

computer that is loaded with a communication software such as Procomm Plus. While primarily intended for use at the NOC, the NOC/NEM interface commands may also be input locally from the EMS computer. Refer to the Digivance Element Management System User Manual

(ADCP-75-151) for additional information.

Page 2-29

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

Figure 2-22. NOC/NEM Interface Typical Commands

The SNMP interface is a GUI that is used for remote control and monitoring operations (except

software download and site number assignment). The SNMP interface uses a Management

Information Base (MIB) to define a list of identifiers that are supported by the SNMP agent.

The SNMP manager communicates with the SNMP agent over a LAN. Directives, based on the

MIB identifier, are issued by the SNMP manager to the SNMP agent along with instructions to either get the specified identifier or set the specified identifier. The directive is then executed on the Digivance system by the SNMP agent. The SNMP agent also has the ability to send autonomous messages (called traps) to the SNMP manager to report changes in the status of the managed system. The SNMP manager Stargazer Version 8.0 is available from ADC for use with the LRCS SNMP agent. Other SNMP managers are available from various network management software venders. Refer to the SNMP Agent Software User Manual (ADCP-75-

152) for additional information.

Page 2-30

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

9 SPECIFICATIONS

Refer to

Table 2-4 for the Digivance SMR LRCS system nominal specifications. All

specifications apply after a five minute warm-up period.

Table 2-4. 800/900 MHz SMR System Nominal Specifications

REMARKS PARAMETER

Optical - Host and Remote Unit

Fiber type

Number of fibers required

With WDM

Without WDM

SPECIFICATION

9/125, single-mode

1

2

The wavelength division multiplexer (WDM) is an accessory item.

Forward path wavelength

Reverse path wavelength

Optical transmit power output

Host Unit

Remote Unit

Optical budget

1550 nm

1310 nm

0 dBm

+2 dBm

25 dB

Optical Receive Input

Optical connectors

Optical - Host and Remote WDM

Passband

–15 dBm

Industry standard SC

1310 nm ± 20 nm

1550 nm ± 20 nm

Forward path insertion loss

Host WDM

Remote WDM

Reverse path insertion loss

Host WDM

Remote WDM

Isolation

Return loss (Reflectance)

RF Forward Path - 800/900 MHz

0.7 dB

0.3 dB

0.3 dB

0.7 dB

> 30 dB minimum

< –50 dB

For optical BER of 10

–6

Host, remote, and WDM

Does not include connector loss

Does not include connector loss

All input ports

System bandwidth

Frequency range

18 MHz

5 MHz

851–869 MHz

935–940 MHz

83.5 dB with 35 Watt LPA Gain of forward path

(Host input to Remote primary antenna port)

Gain flatness

Band flatness

Channel flatness

± 2.0 dB across freq. range

± 1.5 dB variation across any

1.25 MHz channel

800 MHz transmit

900 MHz transmit

At band center, room temperature, and 0 dB attenuation setting. Includes power amplifier.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

Table 2-4. 800/900 MHz SMR System Nominal Specifications, continued

PARAMETER

Gain variation

Propagation delay

Configurable propagation delay

Range

Step size

Spurious

In-band self generated

Dynamic range (noise floor)

Transmit peak-to-average

Two-tone Intermodulation

Nominal composite RF input signal level

Configurable input level

Range

Step size

SPECIFICATION

± 3 dB over temp and unit-tounit

< 3

µs (typical)

Up to 63

0.1

10 dB

<–60 dBc

µs

µs ± 100 ns

<–13 dBm at remote output

<–60 dBc

–40 dBm at 0 dB attenuation

–9 dBm at max. attenuation

REMARKS

Excludes fiber delay

Plus standard propagation delay

–20 dBm is the optimal RF input signal level.

Composite RF Output power of both bands with 35 Watt LPA

(see Note 1at end of table)

Configurable RF Output

Range

Step size

Transmit path insertion loss

RF Reverse Path - 800/900 MHz

31 dB

1 ± 0.5 dB ±10% of attenuation monotonic

43.4 dBm (22 Watts) at remote antenna port with –40 dBm input

31 dB at remote unit

1 ±0.5 dB ±10% of attenuation monotonic

2.5 dB maximum

35 Watts at LPA output

System bandwidth

Frequency range

Propagation delay

Configurable propagation delay

Range

Step size

Gain of reverse path

Overall gain

Gain variation

Gain flatness

Band flatness

Channel flatness

Out-of-band rejection

18 MHz

5 MHz

806–824 MHz

896–901 MHz

< 3

µs (typical)

Up to 63

µs

0.1

µs ±1 100 ns

30 ± 2 dB at band center at room temperature

3 dB over temperature

±1.5 dB across frequency range

±1 dB variation across any 1.25

MHz channel

–40 dB at < 30 MHz

800 MHz receive

900 MHz receive

Excludes fiber delay

Plus standard propagation delay

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

PARAMETER

Table 2-4. 800/900 MHz SMR System Nominal Specifications, continued

Spurious (in-band self generated)

Intermodulation

System noise figure

Configurable RF output

Range

Step size

SPECIFICATION

–110 dBm referred to input

–62 dBc

8 dB at mid-band

REMARKS

Blocking dynamic range

Level limiting ALC threshold

Level limiting ALC range

Physical/Environmental/

Electrical - Host Unit

Dimensions (H

×W×D)

31 dB

1 ± 0.5 dB ± 10% of attenuation monotonic

70 dB

–40 dBm ± 3 dB instantaneous

30 dB

3.5

× 17.1 × 12.2 inches

(88

× 433 × 311 mm)

Dimension for width does not include the mounting brackets which can be installed for either

19- or 23-inch racks.

EIA or WECO Mounting

Weight

Weather resistance

Operating temperature

Storage temperature

Humidity

External alarm connector

DC power connector

RF coaxial cable connectors

Service connector

Auxiliary connector

CAN connectors

Voltage input

Power consumption

Current rating

Reliability at 25ºC

19- or 23-inch rack

18 lbs. (8.2 kg)

Indoor installation only

0º to 50º C (32º to 122º F)

–40º to 70º C (–40º to 158ºF)

10% to 90%

Screw-type terminals

Screw-type terminal strip

N-type (female)

DB-9 (female)

DB-9 (female)

RJ-45 jack

± 24 or ± 48 VDC

55 watts

1 Amp at –48 VDC

MTBF 80,000 hours

No condensation

NO and NC relay contacts

50 ohms input/output impedance

RS-232 DTE interface

RS-232 DTE interface

± 21 to ± 60 VDC

Excluding fans

Note 1: Per Industry Canada Section 5.3 - The rated output power of this equipment is for single carrier operation. For situations where multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device.

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ADCP-75-179 • Issue 1 • January 2005 • Section 2: Description

Blank

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

SECTION 3: OPERATION

Content Page

1 BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

1.1

Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

1.2

Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

2 TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

2.1

Turn-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

2.2

Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

2.3

Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

2.4

Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

2.5

Determine Output Signal Level at STM Antenna Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

2.6

Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

2.7

Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

2.8

Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

_________________________________________________________________________________________________________

1 BEFORE STARTING OPERATION

This section provides guidelines for turning-up the Digivance system, verifying that all units are operating properly, testing to ensure that all performance requirements are satisfied, and correcting any installation problems. This process assumes that the various units have been installed in accordance with the system design plan.

1.1

Tools and Materials

The following tools and materials are required in order to complete the procedures in this section:

• Portable spectrum analyzer or RF power meter

• AC/DC voltmeter

• External attenuators (if specified in system design plan)

• PC-type computer with Digivance Element Management System (EMS) Version 3.01

software installed

• Straight-through RS-232 DB-9 interface cable (accessory)

• Handset

• Pencil or pen

• Writing pad

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

1.2

Readiness Check

Before starting the turn-up process, inspect the complete Digivance system to verify that all components of the system are ready to be powered-up. This will ensure that no units of the system will be damaged during turn-up and that all existing systems will continue to function properly.

1.2.1

Host Unit Installation Checks

Complete the following checks at the HU prior to starting the turn-up process:

1. Verify that the ON/OFF switch on the HU is in the OFF position (press O).

Note: When connecting the equipment to the supply circuit, be sure to check equipment

nameplate ratings to avoid overloading circuits which may cause damage to over-current protection devices and supply wiring.

2. At the fuse panel, install a 3 Amp GMT fuse in the circuit that supplies DC power to the HU.

3. Using a DC voltmeter, verify that the DC voltage level at the HU power terminals is between ± 21 to ± 60 VDC (nominal ± 24 or ± 48 VDC). The DC power provided to the

HU can be either polarity.

4. Verify that all electrical and optical connections have been completed and that all optical fibers, coaxial cables, and wires are properly routed and secured.

1.2.2

Remote Unit Installation Checks

Complete the following checks at the RU prior to starting the turn-up process:

1. Verify that the ON/OFF switch on the STM is in the OFF position (press O).

2. Verify that the RF ON/OF switch on the LPA in the OFF position.

3. At the AC breaker box, close the circuit breaker for the circuit that supplies AC power to the RU.

4. Using an AC voltmeter, verify that the AC voltage level at the AC outlet is between 110 and 120 VAC (for 120 VAC powered systems) or between 220 and 240 VAC (for 240 VAC powered systems).

5. Verify that all electrical and optical connections have been completed and that all optical fibers, coaxial cables, and wires are properly routed and secured.

2 TURN-UP SYSTEM AND VERIFY OPERATION

The process of turning-up the system and verifying operation involves powering up the various system components, verifying that the LED indicators show normal operation, setting the site number and name, adjusting the RF signal levels, and adjusting the path delay.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

2.1

Turn-Up Procedure

Each Digivance system must be turned-up separately before being networked together with multiple systems through the CAN interface. Use the following procedure to turn-up each

Digivance system:

1. Temporarily disconnect the external alarm system or notify the alarm system provider that testing is in progress.

2. If the HU is networked together with multiple HU’s, temporarily disconnect the CAN cables from the NET IN and NET OUT ports of the HU.

Note: By default, all HU’s and RU’s are programmed with the same site number and

name. This can cause problems for the EMS if multiple HU’s with the same site number and site name are networked together through the CAN interface. It is therefore necessary to temporarily disconnect the CAN interface cables from the HU when it is being configured for operation until a unique site number and name can be assigned.

3. Determine if the forward path composite input signal level at each host unit RF IN port

(851–869 FORWARD and 935–940 FORWARD) is appropriate to produce the required

RF output signal level. Adjust by installing an external attenuator if necessary. For adjustment purposes, the optimum input signal level is –20 dBm. Refer to

Section 2.2

for the calculation and adjustment procedure.

4. Connect the EMS computer (if not already connected) to the SERVICE connector on the

HU or STM front panel. If necessary, a separate laptop computer loaded with EMS Version

3.01 software can be temporarily connected and used to initially configure the system.

5. At the HU: Place the ON/OFF switch on the HU in the ON position (press I).

6. At the RU: Make sure the RF switch on the LPA is in the OFF position. Then place the

ON/OFF switch on the STM in the ON position (press I).

7. Wait 6 to 8 seconds for the HU and the RU modules to initialize and then observe the LED indicators on the HU, STM and LPA. Refer to Section 4 for the troubleshooting procedures if the indicators do not respond as specified in

Table 3-1 .

Table 3-1. LED Indicator Operation at Initial Turn-Up

HOST UNIT

POWER – Green

STANDBY – Off

HOST UNIT – Green

SPECTRUM TRANSPORT MODULE

AC POWER – Green

STANDBY – Off

HOST UNIT – Green

35 WATT LPA

FAIL – Off

SHUTDOWN – Red

Digital Display – FORCED

SHUTDOWN

REMOTE UNIT – Green

DRIVE 851–869 and DRIVE

935–940 – Green, Yellow, or Red

FWD/REV (PORT 1/PORT 2) –

Green

STM – Green

PA – Green

VSWR – Green

FWD/REV (PORT 1/PORT 2) –

Green

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

8. Start up the EMS Version 3.01 software program. The EMS main window will open as shown in

Figure 3-1 . Note: The EMS software should be installed on a PC-type computer

and the PC’s COMM port should be configured to interface with the HU. For information about installing the EMS software and configuring the PC’s COMM port, refer to the

Digivance Element Management System Version 3.01 User Manual (ADCP-75-151).

Click to view drop down menu

Figure 3-1. Digivance Element Management System Main Window

9. Open the View drop down menu and connect to the Host and Remote pair by selecting the

“NotNamed/NotNamed” Host/Remote pair. The HOST Alarms display and the REMOTE

Alarms display will open within the main window as shown in

Figure 3-2

.

Host/Remote pair site name

Clicking on the tabs in this list will open the corresponding display.

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© 2005, ADC Telecommunications, Inc.

Figure 3-2. Selecting Display Tabs

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

10. New Control program software and FPGA program software will be provided separately on a “as needed” basis. If new Control and FPGA software is not provided with the system, proceed to step 11. If a Control and FPGA software upgrade is required, contact the ADC Technical Assistance Center (see Section 5) for help with the download procedure.

11. Click on the HOST Config tab and on the REMOTE Config tab (see Figure 3-2 ). The

HOST Config display and the REMOTE Config display will open within the main window.

12. Enter the Site Name and Site Number for both the HOST and the REMOTE unit. Refer to

Section 2.3

for details.

Note: The Site Name and Site Number must be unique for each Digivance system.

13. If the Digivance system will be networked together with other Digivance systems, reconnect the CAN cables to the HU’s NET IN and NET OUT ports.

14. Verify that no Major or Minor alarms (except Major or Minor Extern Alarm) are being reported in either the HOST or REMOTE Alarm displays (except as indicated in the note below) and that all alarm fields (except Major or Minor Extern Alarm) are green.

Note: The Host RF Underdrive may indicate a minor alarm until the Host Fwd Att and

Remote Fwd Att values are set. The Remote LPA disable will indicate a major alarm until the LPA is enabled.

15. Click on the HOST RF tab (see Figure 3-2 ). The HOST RF display will open within the

main window.

16. Enter the Host Fwd Att (Forward Attenuation) value. This sets the forward input RF signal level at the HU. Refer to

Section 2.4

for details. By default, this value is set to 31

dB. If the DRIVE 851–869 and DRIVE 935–940 LED’s on the HU front panel were red, both should turn green when this step is completed.

17. Determine if the RF output power at the STM ANTENNA is at the correct level per

channel up to a composite maximum of +43.4 dBm (22 Watts). Refer to Section 2.5

for

details.

18. Verify that the SHUTDOWN LED indicator on the LPA turns from red to off and the

Digital Display message changes from FORCED SHUTDOWN to NORMAL

OPERATION.

19. Click on the REMOTE RF tab (see

Figure 3-2

). The REMOTE RF display will open within the main window.

20. Enter the Remote Fwd Att value. This adjusts the RF output signal level at the STM

ANTENNA port. By default this value is set to 31 dB. Refer to

Section 2.6

for details.

21. Click on the HOST RF tab (see Figure 3-2 ). The HOST RF display will open within the

main window.

22. Enter the Host Rev Att (Reverse Attenuation) values. This sets the reverse output RF signal levels at the two host unit RF OUT ports (806–824 REVERSE and 896–901

REVERSE). By default each value is set to 31 dB. Refer to

Section 2.7

for details.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

23. If a delay adjustment is required, enter the Host Fwd Delay and Host Rev Delay values.

By default, the delay values are set to 0. Refer to

Section 2.8

for details.

24. If a separate laptop computer loaded with the EMS software was used to initially configure the system, disconnect the laptop computer from the SERVICE connector.

Note: When two or more HU’s are connected together through the CAN interface, only

one EMS computer is required to manage the networked Digivance systems. The EMS computer may be connected to the SERVICE port on any one of the HUs in the network.

25. Reconnect the external alarm system or notify the alarm system provider that the turn-up process has been completed.

2.2

Determine Forward Path Input Signal Level

The level of the composite RF input signals received at the host unit 851–869 FORWARD RF

IN and 935–940 FORWARD RF IN ports will vary depending on the EBTS, the cable loss, the number of channels present, and the required forward path composite power. If maximum composite RF output is required at the RU, the level of the composite RF input signal received at the HU must fall within a range of –9 to –40 dBm. If the signal level is not within this range, it must be adjusted using an external attenuator.

Note: The optimum level for the composite input signal is –20 dBm

When connecting a single HU to a single EBTS, use the following procedure to measure and adjust the input RF signal level at the HU:

1. Connect a spectrum analyzer or power meter to the 851–869 MHz forward path output port at the EBTS. The required signal levels and test points are shown in

Figure 3-3 .

Note: Check the input rating of the test equipment and the output rating of the EBTS. To

avoid burning out the spectrum analyzer or power meter, it may be necessary to insert a

30 dB 100W (or similar) attenuator between the EBTS and test equipment.

2. If using a spectrum analyzer, proceed to step 3. If using a power meter, measure the composite signal power from the EBTS and then proceed to step 5.

3. Measure the RF level of a single carrier, such as the control channel, in dBm. Make sure the resolution bandwidth of the spectrum analyzer is 30 kHz. Maximum power in any channel should not exceed 5W (+37 dB).

4. Calculate the total composite signal power from the EBTS using the following formula:

P tot

= P c

+ 10Log N where,

P tot

is the total composite power in dBm

P c

is the power per carrier in dBm as measured in step 3, and

N is the total number of channels.

Page 3-6

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

806-824

RECEIVER

ENHANCED BASE TRANSCEIVER STATION

896-901

RECEIVER

851-869

TRANS-

MITTER

935-940

TRANS-

MITTER

REVERSE PATH OUTPUT

SIGNAL LEVEL AS SET BY HOST

REVERSE PATH ATTENUATORS

HOST UNIT

0 to 31 dB

ATTENUATORS

(HOST REV ATT)

RF, OPTICS,

AND CONTROL

EXTERNAL

ATTENUATORS

FORWARD PATH

INPUT SIGNAL LEVEL

AT HOST UNIT

(-20 dBm OPTIMAL

COMPOSITE FOR

FULL POWER)

0 to 31 dB

ATTENUATORS

(HOST FWD ATT)

FORWARD PATH SIGNAL

LEVEL AS SET BY HOST

FORWARD PATH

ATTENUATORS

(ADJUST TO -40 dBm

COMPOSITE

FOR FULL POWER)

REMOTE UNIT

OPTICAL LINK

RF, OPTICS,

AND CONTROL

0 to 31 dB

ATTENUATORS

(REMOTE FWD ATT)

LPA

FORWARD PATH SIGNAL

LEVEL AS SET BY REMOTE

FORWARD PATH

ATTENUATORS

ANTENNA

QUADRAPLEXER/FILTER

MAXIMUM OUTPUT SIGNAL

LEVEL AT ANTENNA PORT

(43.4 dBm AT FULL POWER)

Figure 3-3. Signal Levels, Test Points, and Adjustments

20012-A

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

5. Determine the total cable loss that is imposed by the forward path coaxial cable that links the EBTS to the HU and also any insertion loss imposed by splitters or combiners.

6. Subtract the total cable loss and any insertion losses from the total composite power calculated in step 4.

7. Subtract –20 (optimum input signal level) from the value determined in step 6. The difference (which should be positive) equals the value of the external attenuator that is required to reduce the forward path signal level to the optimum level for input to the HU.

The following formula outlines the required calculations for steps 6 and 7:

P tot

– (Cable and insertion loss) – (–20) = Value of external attenuator required

Note: If the input signal level is already –20 dBm, no external attenuator is required.

8. Select an attenuator that is as close to the value calculated in step 7 as possible.

9. Install the external attenuator in the coaxial cable that is connected to the 851–869

FORWARD RF IN port at the HU.

Caution: The Host Unit can be damaged if it is overdriven by the EBTS. Always install an

external protective attenuator at the Host Unit FWD RF IN port if the forward path composite input signal level is greater than –9 dBm.

10. Repeat steps 1–8 for the 935–940 forward path output port at the EBTS. Install the external attenuator in the coaxial cable that is connected to the 935–940 FORWARD RF

IN port at the HU.

11. Subtract the value of the external attenuators from the total composite signal power (P tot

) and record the result. This value will be required when setting the attenuation of the HU’s internal forward path attenuators.

2.3

Enter Site Name and Site Number

All HU’s and RU’s are programmed with the same site name and site number. It is therefore necessary to assign a unique site name and site number to the HU and RU before they can be connected to the same CAN network. Use the following procedure to assign a unique site name and number to each HU and RU system:

1. Click on the HOST Config tab and on the REMOTE Config tab. The HOST Config display and the REMOTE Config display will open within the EMS main window as

shown in Figure 3-4 .

2. Click on the HOST Site Name Edit button (see

Figure 3-4 ). The Site Name pop-up screen will open as shown in Figure 3-5

. Enter a unique name for the HOST. The name may be up to 32 characters long and must not contain any spaces. The name may include numbers, punctuation, and upper or lower case letters and must always begin with a letter.

Click on OK to close the screen and make the changes take effect.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

Click on the Edit button to open pop-up screen

HOST Site Number

HOST Site Name

REMOTE Site Number

(Entered automatically when the HOST site number is selected)

REMOTE Site Name

Figure 3-4. HOST and REMOTE Config Displays

Figure 3-5. HOST Site Name Pop-Up Screen

3. Click on the HOST Site Number Edit button (see Figure 3-4 ). The Site Number pop-up

screen will open. Enter any number (must be unique) between 1 and 24 and then click on

OK to close the screen and make the changes take effect.

4. Check the REMOTE Site Number field (see

Figure 3-4 ). The REMOTE Site Number

does not have to be entered. When the HOST Site Number is entered, the system will automatically enter the same number for the REMOTE Site Number.

5. Click on the REMOTE Site Name Edit button (see

Figure 3-4 ). The Site Name pop-up

screen will open. Enter a unique name for the REMOTE. The name may be up to 32 characters long and must not contain any spaces. The name may include numbers, punctuation, and upper or lower case letters and must always begin with a letter. Click on

OK to close the screen and make the changes take effect.

6. Open the Tools menu at the top of the main window and then select Refresh Catalog to make the new Host and Remote site names appear in the View menu.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

2.4

Enter Host Forward Attenuation

The HU internal forward path attenuator setting determines the maximum composite output signal level at the STM antenna port. The appropriate attenuation value for any particular system is based on the number of channels the system is transporting and the signal level of the composite forward path signals input at the host units RF IN ports. By default, the forward path attenuator is set to 31 dB.

The maximum output power that may be provided by the system is 43.4 dBm (22 Watts). The total forward path gain that is provided by the system (with host and remote forward attenuators set to 0 dB) is 83.5 dBm. Use the following procedure to set the forward path attenuation to provide the maximum composite output signal level:

1. Click on the HOST RF tab. The HOST RF display will open within the EMS main

window as shown in Figure 3-6

.

Click on Edit button to open Host Fwd

Att pop-up screen

Figure 3-6. HOST RF Display

2. Click on the Host Fwd Att Edit button (see Figure 3-6

). The Host Fwd Att pop-up screen

will open as shown in Figure 3-7

.

3. Obtain the value of the total composite input signal level as determined in step 11 of

Section 2.2

.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

Figure 3-7. Host Fwd Att Pop-Up Screen

4. Determine the appropriate value to enter for the Host forward path attenuator by subtracting the required system output level (per system design plan) from the system gain

(83.5 dB) and then adding the composite input signal level. The result (see sample calculation) is the amount of attenuation required.

Atten = (System Gain) – (Required System Output Power) + (Composite Input Power)

5. Enter the attenuation value and click OK to close the pop-up screen and to make the changes take effect.

2.5

Determine Output Signal Level at STM Antenna Port

The RF output signal level should be measured at the STM ANTENNA port to verify that the composite signal level is at the expected level. Use the following procedure to determine the power level:

Note: The RF output signal level measured in this procedure should be approximately

31 dBm less than the output level specified for operation. This is because the factory default setting for the remote forward attenuator is 31 dB. The final adjustment of the system RF output signal level will be completed in

Section 2.6

1. Verify that the RF ON/OFF switch on the LPA is in the OFF position.

2. Disconnect the antenna cable from the STM ANTENNA port.

3. Connect a spectrum analyzer or RF power meter to the STM ANTENNA port. (Check the input rating of the test equipment. Insert a 30 dB 100 W attenuator if necessary.)

4. Place the RF switch on the LPA in the ON position.

5. If using a spectrum analyzer, proceed to step 6. If using a power meter, measure the composite signal power from the STM and then proceed to step 8.

6. Measure the RF level of a single carrier, such as the control channel, in dBm. Make sure the resolution bandwidth of the spectrum analyzer is 30 kHz.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

7. Calculate the total composite signal power using the following formula:

P tot

= P c

+ 10Log N

Where,

P tot

is the total composite power in dBm

P c

is the power per carrier in dBm as measured in step 6, and

N is the total number of channels.

8. Record the result measured in step 5 or calculated in step 7.

9. Place the RF switch on the LPA in the OFF position.

10. Disconnect the spectrum analyzer or RF power meter from the STM ANTENNA port.

11. Re-connect the antenna cable to the STM ANTENNA port.

Note: To comply with Maximum Permissible Exposure (MPE) requirements, the

maximum composite output from the antenna cannot exceed 1000 Watts EIRP and the antenna must be permanently installed in a fixed location that provides at least 6 meters

(20 feet) of separation from all persons.

2.6

Enter Remote Forward Attenuation

The STM internal forward path attenuator setting is used to reduce the power level of the composite output signals at the STM. The maximum composite output signal level at the STM

antenna port is set using the both the Host internal forward attenuator (see Section 2.4

) and the

STM forward path attenuator. Component variations may result in the output power at the STM antenna port being slightly above or below the calculated value. The STM forward attenuator is used in conjunction with the Host forward attenuator to add or remove attenuation to produce the required output signal level at the antenna port. The default setting for the STM forward attenuator is 31 dB. Use the following procedure to change the STM forward attenuation:

Caution: The LPA may be destroyed if the maximum output signal level of 43.4 dBm (22 Watts)

at the STM antenna port is exceeded. Make sure that sufficient attenuation is inserted in the forward path to prevent the LPA from being overdriven.

1. Click on the REMOTE RF tab. The REMOTE RF display will open within the EMS main

window as shown in Figure 3-8

.

2. Check the level of the RF output signal (as determined in

Section 2.5

) against the system

design plan specifications.

Table 3-2 shows the output signal level required to provide 5

watts per channel for systems with 1 to 4 channels. The maximum output signal level permitted for the system is 43.4 dBm (22 Watts).

3. Determine if more or less attenuation is required to produce the required output signal level.

4. Click on the Remote Fwd Att field Edit button (see

Figure 3-8 ). The Remote Fwd Att

pop-up screen will open as shown in

Figure 3-9 .

5. Enter the required attenuation value and click OK to close the pop-up screen and to make the changes take effect.

Page 3-12

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

Click Edit button to open the Remote Fwd

Att pop-up screen

RF output signal level (± 3 dB)

Figure 3-8. REMOTE LPA Display

Table 3-2. Composite Output Signal Levels

NUMBER OF

CHANNELS

1

2

3

4

OUTPUT SIGNAL LEVEL

REQUIRED TO PROVIDE 5

WATTS PER CHANNEL

37 dBm

40 dBm

42 dBm

43 dBm

Figure 3-9. Remote Fwd Att Pop-Up Screen

Page 3-13

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

6. Verify that the appropriate RF output signal level appears in the RF Output Power field

(see

Figure 3-8

). This is primarily a reference value and should not take the place of external test equipment when determining the power level of the composite RF output signal. Depending on the modulation type and number of channels, the EMS software may report a power level that is higher or lower (± 3 dB) than the actual RF output signal.

Note: To comply with Maximum Permissible Exposure (MPE) requirements, the

maximum composite output from the antenna cannot exceed 1000 Watts EIRP and the antenna must be permanently installed in a fixed location that provides at least 6 meters

(20 feet) of separation from all persons.

2.7

Enter Host Reverse Attenuation

The level of the RF signal that should be input to the EBTS will vary depending on the type of

EBTS, the receive distribution, and the number of channels present. To interface with the EBTS, the reverse path signal level must be adjusted to provide the signal level required by the EBTS.

The HU provides from –1 to +30 dB of gain in the reverse path. By default, the host reverse attenuator is set to –31 dB of attenuation which provides –1 dB of gain. Use the following procedure to set the reverse path gain:

1. Check the EBTS manufacturer’s specifications to determine the composite signal level required at the 806–824 MHz and 896–901 MHz reverse path input ports.

2. Determine the overall gain and loss imposed on the signal by the antenna, antenna cable, and by the cables that connect the HU to the EBTS.

3. Determine the amount of gain required to raise the reverse path signal to the level required at the EBTS.

4. Click on the HOST RF tab. The HOST RF display will open within the EMS main

window as shown in Figure 3-10 .

Click Edit button to open the Host Rev Att pop-up screen

Page 3-14

© 2005, ADC Telecommunications, Inc.

Figure 3-10. HOST RF Display

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

5. Click on the Host Rev Att field Edit button (see Figure 3-10 ). The Host Rev Att pop-up

screen will open as shown in

Figure 3-11 .

Figure 3-11. Host Rev Att Pop-Up Screen

6. Enter the attenuation value that will provide the required gain. Refer to Table 3-3 for the

attenuation values and the corresponding gain (nominal) values.

7. Click OK to close the pop-up screen and to make the changes take effect.

Table 3-3. Reverse Path Attenuation Setting and Nominal Gain Provided

ATTENUATION

SETTING

0 dB

→

1 dB

2 dB

3 dB

4 dB

5 dB

6 dB

7 dB

8 dB

9 dB

10 dB

GAIN

PROVIDED

30 dB

29 dB

28 dB

27 dB

26 dB

25 dB

24 dB

23 dB

22 dB

21 dB

20 dB

ATTENUATION

SETTING

11 dB

→

12 dB

13 dB

14 dB

15 dB

16 dB

17 dB

18 dB

19 dB

20 dB

21

GAIN

PROVIDED

19 dB

18 dB

17 dB

16 dB

15 dB

14 dB

13 dB

12 dB

11 dB

10 dB

9 dB

ATTENUATION

SETTING

22 dB

→

23 dB

24 dB

25 dB

26 dB

27 dB

28 dB

29 dB

30 dB

31 dB

GAIN

PROVIDED

8 dB

7 dB

6 dB

5 dB

4 dB

3 dB

2 dB

1 dB

0 dB

–1 dB

2.8

Enter Host Forward and Reverse Delay

The forward and reverse delay function allows entry of from 0 to 63

µsec of delay in the forward and reverse paths. This feature is used when multiple systems are used to transport the same channel and there is a significant difference in the path delay between systems. Additional delay may be entered to balance the overall system delay. The amount of delay required must be calculated by the RF engineer and should be included in the system design plan. The default setting is 0

µsec. Use the following procedure to change the forward and reverse path delay:

Page 3-15

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

1. Click on the HOST RF tab. The HOST RF display will open within the EMS main window as shown in

Figure 3-12 .

Click Edit button to open the Host Fwd

Delay pop-up screen

Click Edit button to open the Host Rev

Delay pop-up screen

Figure 3-12. HOST RF Display

2. Click on the Host Fwd Delay field Edit button (see

Figure 3-12

). The Host Fwd Delay pop-up screen will open as shown in

Figure 3-13

.

Figure 3-13. Host Fwd Delay Pop-Up Screen

3. Obtain the value of the forward delay as specified in the system design plan. The delay is adjustable in 0.1

µsec steps.

4. Enter the forward path delay value and click OK to close the pop-up screen and to make the changes take effect.

Page 3-16

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

5. Repeat the process for reverse delay by right-clicking on the appropriate delay section (see

Figure 3-12 ) and then entering the required delay value in the pop-up screen.

6. Click OK to close each pop-up screen and to make the changes take effect.

Page 3-17

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 3: Operation

Blank

Page 3-18

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

SECTION 4: MAINTENANCE

1 SYSTEM MAINTENANCE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

1.1

Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

2 FAULT DETECTION AND ALARM REPORTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

3 FAULT ISOLATION AND TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

3.1

Host Unit Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

3.2

STM Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

3.3

LPA Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4 TEST PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

4.1

Optical Power Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

4.2

Optical Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

5 SCHEDULED MAINTENANCE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

_________________________________________________________________________________________________________

1 SYSTEM MAINTENANCE OVERVIEW

This section explains the Digivance system fault detection and alarm reporting system, provides a method for isolating and troubleshooting faults, and provides test procedures. The Digivance system requires minimal regular maintenance to insure continuous and satisfactory operation.

Components that require regular replacement, cleaning, or testing include the HU fans, STM fan, LPA fans, RU cabinet air-filter, and RU back-up battery.

Maintenance also includes diagnosing and correcting service problems as they occur. When an alarm is reported, it will be necessary to follow a systematic troubleshooting procedure to locate the problem. Once the source of the problem is isolated, the appropriate corrective action can be taken to restore service. The only internal components that can be replaced are the cooling fans which mount in the HU, RU, and LPA. The failure of any other internal component will require replacement of the entire unit.

1.1

Tools and Materials

The following tools and materials are required in order to complete the maintenance procedures specified in this section:

• ESD wrist strap

• IR filtering safety glasses

• Patch cords with SC connectors

• 15 dB in-line SC optical attenuators

• Optical power meter (1550 and 1310 nm)

• TORX screwdriver (with T10 bit)

• Battery maintenance tools (see PRC-SERIES OPERATING AND FIELD SERVICE

MANUAL for tool recommendations)

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

2 FAULT DETECTION AND ALARM REPORTING

The Digivance LRCS on-board embedded software detects various unit and system faults which generate ether a Major or Minor alarm. A Major alarm indicates that the system has failed in a way that directly affects RF transport performance. When a major alarm occurs, all RF functions are disabled and the system is out of service. A Minor alarm means that system performance is not affected or in some cases, that the performance may no longer be optimal.

When a minor alarm occurs, RF functions continue and the system remains in service.

The following means are used to report Major and Minor alarms:

• HU alarm contacts

• HU, STM, and LPA front panel LED’s

• EMS software Graphical User Interface (GUI)

• Network Operations Center - Network Element Manager (NOC/NEM) interface

• SNMP interface

The HU is equipped with a set of both normally open (NO) and normally closed (NC) alarm contacts which may be used to report both Major and Minor alarms to an external alarm system.

The alarm contacts summarize the inputs so that any Major or Minor alarm will trigger an alarm report to the external alarm system.

The HU, STM, and LPA front panel LED indicators show status and alarm information by displaying various colors: Green, Red, Yellow, and Off. In addition to LED indicators, the 35

Watt LPA is also equipped with a Digital Display that provides text messages. A description of the Host Unit, Spectrum Transport Module, and 35 Watt LPA LED indicators is provided respectively in

Table 4-1

,

Table 4-2 , and

Table 4-3 .

The EMS software GUI provides both a summary and a detailed list of alarm information that includes unit and module level faults, circuit faults, and measured value faults such as voltages,

RF power, and temperature. A summary showing a list of all systems and their current alarm status is presented through the Alarm OverView display. A more detailed list of alarm information is presented through the HOST alarm display and the REMOTE alarm display. The various fault conditions that trigger a major or minor alarm report are shown in the HOST and

REMOTE alarm displays.

The NOC/NEM interface provides the same summary and detailed listing of alarm information as the EMS software GUI but in an ASCII text string format. Sending the command GET

ALARMSUMMARY produces a list of all systems and their current alarm status. Sending the command GET ALARM ALL for a specific system will produce a detailed list of alarm information for the specified system.

The SNMP interface provides alarm information to up to ten SNMP managers which must be registered with the SNMP agent. The SNMP interface allows the SNMP managers to receive the alarm and status information generated by the host and remote units. The presentation of the alarm information is dependent on the features of the SNMP manager.

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Table 4-1. Host Unit LED Indicators

INDICATOR

POWER

STANDBY

HOST UNIT

COLOR

Green

Off

Green (blinking)

Yellow (blinking)

Red (blinking)

Off

DESCRIPTION

Indicates if the HU is powered or un-powered.

The DC power source is on.

The DC power source is off.

Indicates if the system is in the standby, normal, test, or program load mode.

The HU is in the standby mode.

The HU is in the program load mode.

The HU is in the test mode.

The HU is in the normal mode.

Indicates if the HU is normal, over temperature, if an internal fault is detected, or if there is an equipment mismatch.

The HU is normal.

The HU is over temperature or detects an internal fault.

The HU detects an internal fault or HU/RU band mismatch.

Green

Yellow

Red

REMOTE UNIT

DRIVE 851–869 and

DRIVE 935–940

Green

Yellow

Red

Green

Yellow

Red

Indicates if an alarm is detected at the RU.

No alarms detected at the RU.

A minor alarm is detected at the RU.

A major alarm is detected at the RU.

Indicates if the specified forward path RF signal level is normal, above overdrive threshold, or below underdrive threshold.

The RF signal level is normal

The RF signal level is below the underdrive threshold.

The RF signal level is above the overdrive threshold.

FWD/REV

(PORT 1/PORT 2)

Green

Red

Indicates if the reverse path optical signals from the STM are normal, if errors are detected, or if the optical signal is not detected.

The reverse path optical signals are normal.

Excessive errors (see Note) are detected in the reverse path optical signals or the HU is not receiving a reverse path optical signal.

Note: Excessive errors means the Bit Error Rate (BER) has exceeded 10

–6

(1 bit error per million bits).

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Table 4-2. Spectrum Transport Module LED Indicators

INDICATOR

AC POWER

STANDBY

COLOR

Green

Red

Green (blinking)

Yellow (blinking)

Red (blinking)

Off

DESCRIPTION

Indicates if the STM is powered by the AC power source or the back-up battery system.

The STM is powered by the AC power source.

The STM is powered by the back-up battery system.

Indicates if the system is in the standby, normal, test, or program load mode.

The STM is in the standby mode.

The STM is in the program load mode.

The STM is in the test mode.

The STM is in the normal mode.

HOST UNIT

STM

PA

VSWR

FWD/REV

(PORT 1/PORT 2)

Green

Yellow

Red

Green

Yellow

Red

Green

Yellow

Red

Green

Red

Green

Red

Indicates if an alarm is detected at the HU.

No alarms detected at the HU.

A minor alarm is detected at the HU.

A major alarm is detected at the HU.

Indicates if the STM is normal, over temperature, if a battery fault is detected, if an internal fault is detected, or if

there is an equipment mismatch.

The STM is normal.

The STM is over temperature due to high ambient temperature, the fan has failed, or detects an internal fault.

The STM detects an internal fault, the backup battery voltage is below threshold, or HU/RU band mismatch.

Indicates if the LPA is normal, over temperature, has a fan

failure, has an internal fault, is shutdown, or not present.

The LPA is normal.

The LPA is over temperature or the fan has failed.

Internal fault detected in the LPA, the LPA RF power output is shutdown, or the LPA is not present.

Indicates if the forward path VSWR is above or below the

threshold.

The VSWR is below the threshold.

The VSWR is above the threshold.

Indicates if the forward path optical signals from the HU are normal, if errors are detected, or if the optical signal is not detected.

The forward path optical signals are normal.

Excessive errors (see Note) are detected in the forward path optical signal or the STM is not receiving the forward path optical signal.

Note: Excessive errors means the Bit Error Rate (BER) has exceeded 10

–6

(1 bit error per million bits).

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© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

INDICATOR

FAIL

COLOR

Off

Yellow

SHUTDOWN

Off

Red

DISPLAY MESSAGE 1ST LINE

PA Initializing

Normal Operation

Internal Shutdown

Forced Shutdown

DISPLAY MESSAGE 2ND LINE

Over Power

Over Temperature

VSWR

DC Fail

Low Gain

Alarm: OK

Loop Fail

Fan Fail

Table 4-3. 35 Watt LPA LED Indicators and Digital Display

DESCRIPTION

Indicates if the LPA is normal or faulty.

The LPA is normal.

Internal fault detected in the LPA.

Indicates if the LPA has an RF output or if the RF output is shutdown.

The LPA RF output is on.

The LPA RF output is shutdown.

DESCRIPTION

The LPA is initializing itself and is not ready for operation.

The LPA is enabled and transmitting RF.

The LPA is disabled due to a major fault and is not transmitting RF.

The LPA is disabled by the front panel control switch or through the EMS.

DESCRIPTION

The LPA maximum RF output rating has been exceeded.

The LPA maximum operating temperature has been exceeded.

The voltage standing wave ratio is greater than 3:1.

The LPA internal DC power supply is out of specification.

The LPA internal amplifier gain is too low.

The LPA does not detect any faults that would cause an alarm.

The LPA internal loop gain in out of range.

One or both of the LPA cooling fans has failed.

Page 4-5

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

3 FAULT ISOLATION AND TROUBLESHOOTING

Alarm information may be accessed using the HU and STM front panel LED indicators, the

EMS software GUI, the NOC-NEM interface, or the SNMP manager. When an alarm occurs, use the unit LED indicators and any one of the specified software tools to determine which

Digivance system is affected, which unit (HU or STM) reported the alarm, and the fault that generated the alarm. Then refer to either

Section 3.1

Host Unit Troubleshooting or Section 3.2

STM Troubleshooting to isolate the problem and to determine the corrective action required. If an LPA problem is reported by the STM, refer to

Section 3.3

LPA Troubleshooting for the troubleshooting procedures that apply to the LPA.

When attempting to isolate a problem, always determine the initial fault that generated the alarm report. Some faults may cause additional faults to be reported which tends to obscure the initial reason for the alarm. To help isolate faults, the EMS GUI provides an AlarmOverview screen, shown in

Figure 4-1

, that indicates which Digivance system/unit is reporting the alarm.

Click to acknowledge alarm and to open Alarm

History Info dialog box

Click to clear alarm history fault indicator and to close Alarm

History Info dialog box

Figure 4-1. AlarmOverView Screen

The AlarmOverview screen includes an ALARM HIST indicator which the user should click to acknowledge that an alarm exists. Acknowledging the alarm opens the Alarm History Info dialog box (also shown in

Figure 4-1

) which directs the user to view the EMS Log file for details. The EMS Log file lists the various faults in the order in which they occurred. Clear each fault starting with the initial fault. In most instances, clearing the initial fault will also clear any remaining faults. For additional information on using the AlarmOverview screen, refer to the

Digivance Element Management System Version 3.01 User Manual (ADCP-75-151).

Note: It is recommended that if there are alarms at both the HU and STM, the optical

faults should be checked and cleared first. Because the HU and STM function as a system, a fault in the fiber optic link will cause alarms to be reported by both the HU and STM.

Page 4-6

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

3.1

Host Unit Troubleshooting

Use this section to troubleshoot alarms that originate with the Host Unit. When a Minor alarm occurs, one (or more) of the Host Unit LED’s with turn yellow and the EMS software will indicate a minor fault/alarm. When a Major alarm occurs, one (or more) of the Host Unit LED’s will turn red and the EMS software will indicate a major fault/alarm. Locate the LED and the corresponding software fault/status indicator in

Table 4-4

and then take the corrective action indicated.

Table 4-4. Host Unit Fault/Alarm Isolation Diagram

Host Unit Front Panel LED

Power

Standby

Green - Powered

Off - Not powered

Green blinking - Standby

Yellow blinking -

Program load

Red blinking - Test

Off - Normal

Green - Normal

Yellow - Minor Alarm

Software Fault/Status Indicator Corrective Action or Reference

No specific HU faults - Only faults with no associated LED are displayed

Table 4-5

Problem A

Oper Mode - Operational mode of system

Temperature - Over temperature

Use EMS to change system to required mode

Table 4-5

Problem B

Host

Unit

Red - Major Alarm

LO Synth Lock - Local oscillator synthesizer out of lock

Pri Rev Synth Lock - Reverse primary synthesizer out of lock

8 Volt - Onboard 8 Volt power supply below threshold

3.8 Volt - Onboard 3.8 Volt power supply below threshold

Pri Fwd Mux Lock - Forward primary phase locked loop out-of-lock

Pri Laser Fail - Forward primary laser failure

Hardware mismatch - Host and

Remote band mismatch

Replace HU

Replace HU or

STM with correct unit

Continued

20013-A

Page 4-7

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Table 4-4. Host Unit Fault/Alarm Isolation Diagram, continued

Host Unit Front Panel LED

Remote

Unit

Software Fault/Status Indicator Corrective Action or Reference

Green - Normal

Yellow - Minor Alarm at Remote Unit - See Table 4-6. Remote Unit Fault/Alarm Isolation Diagram

Red - Major Alarm at Remote Unit - See Table 4-6. Remote Unit Fault/Alarm Isolation Diagram

Green - Normal

Drive

851-869

Fwd/Rev

(Port 1/Port 2)

Yellow - Minor Alarm

Red - Major Alarm

Green - Normal

Red - Major Alarm

RF Underdrive 800 MHz - 800 MHz forward path RF signal level too low

RF Overdrive 800 MHz - 800 MHz forward path RF signal level too high

Pri Rx Light - No light received over optical reverse path

Pri Rx Errors - Excessive errors received over optical reverse path

Table 4-5

Problem C

Table 4-5

Problem D

See Table 4-5

Problem E

See Table 4-5

Problem E

Green - Normal

Drive

935-940

No Associated LED

Yellow - Minor Alarm

Red - Major Alarm

RF Underdrive 900 MHz - 900 MHz forward path RF signal level too low

RF Overdrive 900 MHz - 900 MHz forward path RF signal level too high

Minor Contact Output - Minor alarm reported by HU or STM

Major Contact Output - Major alarm reported by HU or STM

Remote Lost - The HU cannot communicate with remote (STM)

EMS Link Status - The EMS cannot communicate with HU

Table 4-5

Problem C

Table 4-5

Problem D

See specific fault indicator

See specific fault indiator

See Table 4-5

Problem E

See Table 4-5

Problem F

20014-A

Table 4-5. Host Unit Fault/Alarm Corrective Action

PROBLEM A: The HU is not powered.

POSSIBLE CAUSE

1. The HU is turned off.

2. The fuse is open/removed from the fuse panel

or the DC power has failed.

PROBLEM B: The HU is overheating.

POSSIBLE CAUSE

1. Air intake or exhaust opening to HU chassis

is blocked

2. Ambient temperature > 50º C/122º F.

3. Faulty fan.

4. The HU has failed.

CORRECTIVE ACTION/COMMENTS

1. Place On/Off switch in the On position.

2. Check DC power source, repair as needed, and

replace or reinstall fuse at fuse panel.

CORRECTIVE ACTION/COMMENTS

1. Remove cause of air-flow blockage.

2. Reduce ambient temperature.

3. Replace HU fan (See applicable manual).

4. Replace HU.

Page 4-8

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Table 4-5. Host Unit Fault/Alarm Corrective Action, continued

PROBLEM C: The RF input signal level is below the underdrive threshold.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Composite output signal from EBTS is too low.

1. Check EBTS composite output signal level and

adjust if too low.

2. Correct EBTS cables if faulty. 2. Faulty coaxial connection between the HU

and the EBTS.

3. Incorrect attenuation in forward path RF

coaxial link.

3. Check Host Forward Attenuator setting and

adjust if attenuation is too high.

PROBLEM D: The RF input signal is above the overdrive threshold.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Composite output signal level from EBTS is

too high.

2. Incorrect attenuation in forward path RF

coaxial link.

1. Check EBTS composite output signal level and

adjust if too high.

2. Check Forward Attenuator setting and adjust if

attenuation is too low.

PROBLEM E: No light received over the reverse path or excessive errors received over the reverse path

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Faulty reverse path optical fiber.

2. Faulty optical transmit port at the STM;

or faulty optical receive port at the HU

1. Test optical fiber. Clean connector if dirty. Repair

or replace optical fiber if faulty. (See

Section 4.1

).

2. Test optical ports. Replace HU or STM if port is

faulty (See

Section 4.2

).

PROBLEM F: The HU does not respond to control or monitoring commands sent by the EMS.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The HU is not powered.

2. The cable connection between the HU and the

EMS computer is faulty.

3. The CAN cable connections between the HUs

in a multiple HU installation are faulty.

1. See Problem A this table.

2. Inspect EMS cable and repair or replace if faulty.

3. Inspect each CAN cable and repair or replace if

faulty.

3.2

STM Troubleshooting

Use this section to troubleshoot alarms that originate with the STM. When a Minor alarm occurs, one (or more) of the STM LED’s will turn yellow and the EMS software will indicate a minor fault/alarm. When a Major alarm occurs, one (or more) of the STM LED’s will turn red and the EMS software will indicate a major fault/alarm. Locate the LED and the corresponding fault/status indicator in

Table 4-6

and then take the corrective action indicated.

Page 4-9

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Table 4-6. Remote Unit Fault/Alarm Isolation Diagram

Remote Unit Front Panel LED

AC

Power

Standby

Host

Unit

Software Fault/Status Indicator Corrective Action or Reference

Green - Powered by AC power source

Red - Major Alarm

Off - Not powered

AC Fail - The AC power is off,

RU powered by back-up battery

See Table 4-7

Problem A

Green blinking - Standby

Yellow blinking -

Program load

Red blinking - Test

Off - Normal

Oper Mode - Operational mode of system

Use EMS to change system to required mode

Green - Normal

Yellow - Minor Alarm at Host Unit - See Table 4-4. Host Unit Fault/Alarm Isolation Diagram

Red - Major Alarm at Host Unit - See Table 4-4. Host Unit Faul/Alarm Isolation Diagram

Green - Normal

Yellow - Minor Alarm

Temperature - Over temperature

See Table 4-7

Problem B

STM

Red - Major Alarm

Converter - Power supply converter failure

LO Synth Lock - Local oscillator synthesizer out of lock

Pri Rev Synth Lock - Reverse primary synthesizer out of lock

Ref Synth Lock - Reference synthesizer out of lock

8 Volt - Onboard 8 Volt power supply below threshold

3.8 Volt - Onboard 3.8 Volt power supply below threshold

Pri Rev Mux Lock - Reverse primary phase locked loop out-of-lock

Pri Laser Fail - Reverse primary laser failure

Hardware mismatch - Host and

Remote band mismatch

Battery Voltage - Battery voltage below threshold

20015-A

Replace STM

Replace HU or

STM with correct unit

See battery manual

Continued

Page 4-10

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

PA

VSWR

Fwd/Rev

(Port 1/Port 2)

Table 4-6. Remote Unit Fault/Alarm Isolation Diagram, continued

Remote Unit Front Panel LED

Green - Normal

Yellow - Minor Alarm

No Associated LED

Red - Major Alarm

Green - Normal

Red - Major Alarm

Green - Normal

Red - Major Alarm

Software Fault/Status Indicator

LPA Fan - Fan failure

LPA Temp - Over temperature

LPA Detect - LPA not installed

LPA Over Power - LPA signal level too high

LPA VSWR - The LPA

VSWR is too high

LPA DC Fail - LPA DC power supply failure

LPA Loop Failed - LPA internal loop failure

LPA Low Power - LPA internal amplifier failure

System VSWR - The VSWR at the quadraplexer is too high

Pri Rx Light - No light received over optical forward path

Pri Errors - Excessive errors received over optical forward path

Host Lost - The STM cannot communicate with Host (HU)

EMS Link Status - The EMS cannot communicate with STM

Minor Extern Input - Minor external alarm reported by STM

Major Extern Input - Major external alarm reported by STM

RF Power - No RF power detected at quadraplexer (STM)

LPA Disable - The LPA is shut down

Corrective Action or Reference

See Table 4-7

Problem D

See Table 4-7

Problem E

See Table 4-7

Problem E

See Table 4-7

Problem E

See Table 4-7

Problem F

See Table 4-7

Problem G

See Table 4-7

Problem G

See Table 4-7

Problem H

Check LPA. See

Table 4-8

20016-A

Replace

LPA fan

See Table 4-7

Problem C

Install LPA

Check LPA. See

Table 4-8

Check LPA. See

Table 4-8

Check LPA. See

Table 4-8

Check LPA. See

Table 4-8

Check LPA. See

Table 4-8

Page 4-11

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Table 4-7. STM Fault/Alarm Corrective Action

PROBLEM A: The RU is powered by the battery back-up system.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The AC power system circuit breaker is open

or the AC power has failed.

2. The STM has failed.

PROBLEM B: The STM is overheating.

POSSIBLE CAUSE

1. Check the AC power system, repair as needed,

and reset circuit breaker.

2. Replace the STM.

CORRECTIVE ACTION/COMMENTS

1. Remove cause of air-flow blockage. 1. Air intake or exhaust opening to the remote

unit cabinet is blocked

2. Ambient temperature > 50º C/122º F.

3. Faulty fan.

4. The STM has failed.

PROBLEM C: The LPA is overheating.

POSSIBLE CAUSE

2. Reduce ambient temperature.

3. Replace STM fan (See applicable manual).

4. Replace STM.

CORRECTIVE ACTION/COMMENTS

1. Air intake or exhaust opening to the remote

unit cabinet is blocked

2. Ambient temperature > 50º C/122º F.

3. Faulty fan.

1. Remove cause of air-flow blockage.

2. Reduce ambient temperature.

3. Replace LPA fan (See applicable manual).

PROBLEM D: The forward path VSWR is above threshold.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Faulty antenna or antenna system.

2. Faulty antenna cable.

3. The STM qudraplexer has failed.

1. Check the antenna system for shorts or opens

(including lightning protector).

2. Check the antenna cable for faulty connections.

3. Replace the STM.

PROBLEM E: No light received over the forward path or excessive errors received over the forward path

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Faulty forward path optical fiber.

2. Faulty optical transmit port at the HU;

or faulty optical receive port at the STM.

1. Test optical fiber. Clean connector if dirty. Repair

or replace optical fiber if faulty. (See

Section 4.1

).

2. Test optical ports. Replace HU or STM if port is

faulty (see

Section 4.2

).

PROBLEM F: The STM does not respond to control or monitoring commands sent by the EMS.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The cable connection between the STM and

the EMS computer is faulty.

1. Inspect EMS cable and repair or replace if faulty.

PROBLEM G: An external fault is detected at the Remote Unit.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The RU cabinet door is open.

2. Customer specified external fault at RU

1. Close RU cabinet door.

2. Check RU and correct specified external fault.

Page 4-12

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

3.3

LPA Troubleshooting

During normal operation of the 35 Watt LPA, all LED’s should be Off. When troubleshooting the LPA, always check the LPA front panel display for messages before initiating a reset or replacing the LPA. The display will generally indicate the reason for the alarm.

Table 4-8. 35 Watt LPA Fault Isolation and Corrective Action

LED: FAIL Color: Yellow

PROBLEM: Internal fault detected in the LPA.

POSSIBLE CAUSE

1. The STM to LPA connecting cable is faulty.

2. The LPA has failed.

LED: SHUTDOWN Color: Red

PROBLEM: The RF output from the LPA is shutdown.

Alarm Type: Major

CORRECTIVE ACTION/COMMENTS

1. Inspect cable and repair or replace if faulty.

2. Replace LPA

Alarm Type: Major

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1.The RF ON/OFF switch is in the OFF position

2. The LPA is in the forced shutdown mode

(single front fan unit) or internal shutdown

mode (dual front fan unit).

3. Breaker switch on LPA is open

4. The LPA is faulty.

1. Place RF ON/OFF switch in the ON position

2. Watch the LED Display and note reason for the

forced shutdown. Refer to the Display Message

section of this table for the recommended correc-

tive action.

3. Reset breaker switch.

4. Replace LPA.

DISPLAY MESSAGE FORCED/INTERNAL SHUTDOWN Alarm Type: LOOP FAIL

PROBLEM: Internal fault detected in the LPA.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The LPA has failed. 1. Replace LPA

DISPLAY MESSAGE FORCED/INTERNAL SHUTDOWN Alarm Type: DC FAIL

PROBLEM: Internal fault detected in the LPA.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The LPA has failed. 1. Replace LPA

DISPLAY MESSAGE FORCED/INTERNAL SHUTDOWN Alarm Type: LOW POWER ALARM

PROBLEM: Internal fault detected in the LPA.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The LPA has failed. 1. Replace LPA

DISPLAY MESSAGE FORCED/INTERNAL SHUTDOWN Alarm Type: FANFAIL

PROBLEM: Internal fault detected in the LPA.

POSSIBLE CAUSE

1. Both LPA fans have failed.

CORRECTIVE ACTION/COMMENTS

1. Replace both LPA fans. To reset, use EMS to

place Digivance system in standby mode and

then place system back in normal mode.

Page 4-13

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Table 4-8. 35 Watt LPA Fault Isolation and Corrective Action, continued

DISPLAY MESSAGE FORCED/INTERNAL SHUTDOWN Alarm Type: OVER POWER ALARM

PROBLEM: Output power from the LPA exceeds the maximum rating.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The power level of the RF forward path

composite input signal at the HU is too high.

2. The LPA has failed.

1. Check the power level of the RF composite input

signal at the HU and adjust to correct level. To

reset, use EMS to place Digivance system in

standby mode and then place system back in

normal mode.

2. Replace LPA.

DISPLAY MESSAGE FORCED/INTERNAL SHUTDOWN Alarm Type: VSWR ALARM

PROBLEM: The VSWR exceeds threshold setting of 3:1.

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. The interface cable between the LPA and STM

is faulty or the interface cable connectors are

faulty.

2. The antenna cable or antenna cable connectors

are faulty.

1. Inspect interface cable and connectors and repair

or replace as needed.To reset, use EMS to place

Digivance system in standby mode and then place

system back in normal mode.

2. Inspect antenna cable and connectors and repair

or replace as needed.To reset, use EMS to place

Digivance system in standby mode and then place

system back in normal mode.

3. The antenna or antenna system is faulty.

4.The STM qudraplexer has failed.

5. The LPA has failed.

3. Check the antenna circuit for shorts or opens

(including lightning protector). To reset, use EMS

to place Digivance system in standby mode and

then place system back in normal mode.

4. Replace STM.

5. Replace LPA

Page 4-14

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

4 TEST PROCEDURES

This section provides procedures for common troubleshooting and maintenance tests. Refer to

these procedures as needed when specified in the Fault/Alarm Isolation Diagrams in Section 3 .

4.1

Optical Power Test

A break in an optical fiber or a fault with the optical connector will interrupt communications between linked components or generate excessive errors. Use the following procedure to isolate a problem with an optical fiber or connector.

Danger: This equipment uses a Class 1 Laser according to FDA/CDRH rules. Laser radiation

can seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do not look directly into the optical transmitter of any unit or exposure to laser radiation may result.

An optical power meter should be used to verify active fibers. A protective cap or hood MUST be immediately placed over any radiating transmitter or optical fiber connector to avoid the potential of dangerous amounts of radiation exposure. This practice also prevents dirt particles from entering the connector.

1. Put on the IR filtering safety glasses.

2. Notify the NOC or alarm monitoring system operator that the system is going offline.

3. At the HU and at the STM, place the On/Off switches in the OFF position (press O).

Note: Turning off the HU and STM disables the respective lasers which is necessary in

order to safely inspect and clean the optical connectors.

4. Disconnect the optical fiber connectors for the fiber to be tested at the HU and the STM.

5. Inspect the optical connectors. Verify that connectors are clean and that no scratches or imperfections are visible on the fiber end. Clean and polish the optical connectors if necessary.

6. Connect the optical power meter to the output (receiver) end of the optical fiber as shown in

Figure 4-2

. If an attenuator was included in the fiber link, make sure the attenuator is installed.

FWD

(PORT 1)

HOST UNIT

REV

(PORT 2)

FORWARD PATH OPTICAL FIBER

TEST SET UP

FORWARD PATH

OPTICAL FIBER

ATTENUATOR

(IF USED)

OPTICAL POWER

METER

-15 TO -25 dBm

OPTICAL POWER

METER

REVERSE PATH

OPTICAL FIBER TEST SET UP

REVERSE PATH

PATH OPTICAL FIBER

ATTENUATOR

(IF USED)

-13 TO -25 dBm

FWD

(PORT 1)

STM

REV

(PORT 2)

20017-A

Figure 4-2. Forward and Reverse Path Optical Fiber Test Set Up

Page 4-15

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

7. Connect the input (transmitter) end of the optical fiber to the transmitting HU or STM

(see Figure 4-2

).

8. At the transmitting HU or STM, place the On/Off switch in the ON position (press I).

9. Using the transmitting HU or STM as an optical light source, measure the optical power at the receiver end of the optical fiber. The power level of the optical input signal at the

HU or STM must fall within the following ranges:

Forward Path Signal at the STM: –15 to –25 dBm (with attenuator installed)

Reverse Path Signal at the HU: –13 to –25 dBm (with attenuator installed)

If the power level of the received optical signal is within the specified range, the optical fiber and the far end unit are good. If the power level of the received signal is not with the specified range, either the optical fiber is faulty or the far end unit optical transmitter is faulty. Continue with test procedure to isolate the problem

10. At the transmitting HU or STM, place the On/Off switch in the OFF position (press O).

11. Disconnect the optical power meter from the receiver end of the optical fiber.

12. Use a 1 meter patch cord to connect the optical power meter to the transmitting HU or

STM as shown in

Figure 4-3 .

FWD

(PORT 1)

HOST UNIT

REV

(PORT 2)

HOST UNIT OPTICAL TRANSMITTER

TEST SET UP

1 METER PATCH CORD

OPTICAL POWER

METER

0 +/- 1 dBm

STM OPTICAL TRANSMITTER

TEST SET UP

STM

OPTICAL POWER

METER

FWD

(PORT 1)

REV

(PORT 2)

1 METER PATCH CORD

+2 +/- 1 dBm

20018-A

Figure 4-3. Host Unit and STM Optical Transmitter Test Set Up

13. At the transmitting HU or STM, place the On/Off switch in the ON position (press I).

14. Measure the optical output power of the transmitting HU or STM. The power level of the optical output signal from the HU or STM must meet the following specification:

Forward Path Signal at the HU: 0 + 1 dBm

Reverse Path Signal at the STM: +2 + 1 dBm

If the power level of the optical output signal is within specifications with a 1 meter patch cord installed, the fiber optic link is faulty. If the power level of the optical signal is not within specifications, the far end HU or STM optical transmitter is faulty.

Page 4-16

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

15. At the transmitting HU or STM, place the On/Off switch in the OFF position (press O).

16. Disconnect the optical power meter from the receiver end of the optical fiber.

17. Reconnect the optical fibers to the receiving HU or STM.

18. Repeat steps 3 through 17 for each optical fiber that requires testing.

19. When ready to put the system back into service, place the On/Off switch in the ON position (press I) at both the HU and STM.

20. Notify the NOC or alarm monitoring service that the system is going back online.

4.2

Optical Loopback Test

The following procedures provide tests to determine if an optical port fault exists with the Host

Unit or with the STM.

Danger: This equipment uses a Class 1 Laser according to FDA/CDRH rules. Laser radiation

can seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do not look directly into the optical transmitter of any unit or exposure to laser radiation may result.

An optical power meter should be used to verify active fibers. A protective cap or hood MUST be immediately placed over any radiating transmitter or optical fiber connector to avoid the potential of dangerous amounts of radiation exposure. This practice also prevents dirt particles from entering the connector.

1. Put on the IR filtering safety glasses.

2. Notify the NOC or alarm monitoring system operator that the system is going offline.

3. At the HU or STM (whichever unit is being tested), place the On/Off switch in the OFF position (press O).

4. Disconnect the optical fiber connectors from the FWD (PORT 1) and REV (PORT 2) optical ports and place a dust cap over each connector.

5. Plug a 15 dB in-line optical attenuator into the FWD (PORT 1) optical port as shown in

Figure 4-4

.

HOST UNIT OR STM

FWD

(PORT 1)

REV

(PORT 2)

15 dB

ATTENUATOR

1 METER PATCH CORD

20019-A

Figure 4-4. Host Unit and STM Loopback Test

Page 4-17

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

6. Connect a 1 meter patch cord between the optical attenuator and the REV (PORT 2) optical port.

7. Place the On/Off switch in the ON position (press I) and observe the FWD/REV (PORT 1/

PORT 2) LED indicator.

8. The FWD/REV (PORT 1/PORT 2) LED indicator will turn either red or green. If the LED turns red, either the FWD (PORT 1) optical transmitter or the REV (PORT 2) receiver is faulty. If the LED turns green, both the FWD (PORT 1) and the REV (PORT 2) optical ports are good.

9. Place the On/Off switch in the OFF position (press O).

10. Remove the dust caps from the optical fiber connectors.

11. Clean each connector (follow connector supplier’s recommendations) and then insert each connector into the appropriate optical port.

12. When ready to put the unit back into service, place the On/Off switch in the ON position

(press I).

13. Notify the NOC or alarm monitoring service that the system is going back online.

Page 4-18

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

5 SCHEDULED MAINTENANCE REQUIREMENTS

Table 4-9 specifies the system maintenance requirements and the recommended maintenance

interval for each maintenance task. Refer to the manual specified in the table for the required maintenance procedure.

INTERVAL

1 month

6 months

12 months

ITEM

Battery*

Battery*

Battery *

Table 4-9. Scheduled Maintenance

REQUIREMENT

Check float voltage.

Check system ambient temperature.

Check system float current.

Perform 1 month scheduled maintenance tasks.

Check individual battery terminal temperature.

Check individual battery float voltages.

Perform 1 and 6 month scheduled maintenance tasks

Complete detailed physical inspection.

Re-torque terminal connections.

Perform general system maintenance.

Perform cabinet maintenance.

24 months

RU cabinet filter**

Battery*

Remove and clean the RU cabinet filter. Refer to the appropriate Remote Unit Installation and Maintenance Manual (see

Related Manuals section) for the required procedures.

Perform 1, 6, and 12 month scheduled maintenance tasks.

Test battery system for rated capacity.

60 months HU Fans

STM Fan

LPA Fans

Remove and replace the cooling fans in the HU, STM, and

LPA. Refer to the appropriate Installation and Maintenance

Manual (see Related Manuals section) for the required procedures.

* Refer to the PRC-SERIES OPERATING AND FIELD SERVICE MANUAL (provided with the back-up battery system) for the specified battery maintenance procedures.

**Though it is not recommended that the RU be installed in a salt-air environment, if done so, clean the cabinet filter on a monthly basis instead of on a 12 month basis. In addition, the RU should be inspected for corrosion due to salt, particularly near the fans and around the connectors. The MTBF of the RU may be impacted if the RU is exposed to salt-air.

Page 4-19

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 4: maintenance

Blank

Page 4-20

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 5: General Information

SECTION 5: GENERAL INFORMATION

Content Page

1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

2 SOFTWARE SERVICE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

3 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

4 REPAIR CHARGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

5 REPLACEMENT/SPARE PRODUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

6 RETURNED MATERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

7 CUSTOMER INFORMATION AND ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

_________________________________________________________________________________________________________

1 WARRANTY/SOFTWARE

The Product and Software warranty policy and warranty period for all ADC Products is published in ADC’s Warranty/Software Handbook. Contact the Technical Assistance Center at

1-800-366-3891, extension 73476 (in U.S.A. or Canada) or 952-917-3476 (outside U.S.A. and

Canada) for warranty or software information or for a copy of the Warranty/Software

Handbook.

2 SOFTWARE SERVICE AGREEMENT

ADC software service agreements for some ADC Products are available at a nominal fee.

Contact the Technical Assistance Center at 1-800-366-3891, extension 73476 (in U.S.A. or

Canada) or 952-917-3476 (outside U.S.A. and Canada) for software service agreement information.

3 REPAIR/EXCHANGE POLICY

All repairs of ADC Products must be done by ADC or an authorized representative. Any attempt to repair or modify ADC Products without written authorization from ADC voids the warranty.

If a malfunction cannot be resolved by the normal troubleshooting procedures, call the

Technical Assistance Center at 1-800-366-3891, extension 73476 (in U.S.A. or Canada) or

952-917-3476 (outside U.S.A. and Canada). A telephone consultation can sometimes resolve a problem without the need to repair or replace the ADC Product.

If, during a telephone consultation, ADC determines the ADC Product needs repair, ADC will authorize the return of the affected Product for repair and provide a Return Material

Authorization number and complete return shipping instructions. If time is critical, ADC can arrange to ship the replacement Product immediately. In all cases, the defective Product must be carefully packaged and returned to ADC.

Page 5-1

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 5: General Information

4 REPAIR CHARGES

If the defect and the necessary repairs are covered by the warranty, and the applicable warranty period has not expired, the Buyer’s only payment obligation is to pay the shipping cost to return the defective Product. ADC will repair or replace the Product at no charge and pay the return shipping charges.

Otherwise, ADC will charge a percentage of the current Customer Product price for the repair or NTF (No Trouble Found). If an advance replacement is requested, the full price of a new unit will be charged initially. Upon receipt of the defective Product, ADC will credit Buyer with 20 percent of full price charged for any Product to be Out-of-Warranty. Products must be returned within thirty (30) days to be eligible for any advance replacement credit. If repairs necessitate a visit by an ADC representative, ADC will charge the current price of a field visit plus round trip transportation charges from Minneapolis to the Buyer’s site.

5 REPLACEMENT/SPARE PRODUCTS

Replacement parts, including, but not limited to, button caps and lenses, lamps, fuses, and patch cords, are available from ADC on a special order basis. Contact the Technical Assistance Center at 1-800-366-3891, extension 73476 (in U.S.A. or Canada) or 952-917-3476 (outside U.S.A.

and Canada) for additional information.

Spare Products and accessories can be purchased from ADC. Contact Sales Administration at

1-800-366-3891, extension 73000 (in U.S.A. or Canada) or 1-952-938-8080 (outside U.S.A.

and Canada) for a price quote and to place your order.

6 RETURNED MATERIAL

Contact the ADC Product Return Department at 1-800-366-3891, extension 73748 (in U.S.A. or

Canada) or 952-917-3748 (outside U.S.A. and Canada) to obtain a Return Material

Authorization number prior to returning an ADC Product.

All returned Products must have a Return Material Authorization (RMA) number clearly marked on the outside of the package. The Return Material Authorization number is valid for 90 days from authorization.

Page 5-2

© 2005, ADC Telecommunications, Inc.

ADCP-75-179 • Issue 1 • January 2005 • Section 5: General Information

7 CUSTOMER INFORMATION AND ASSISTANCE

PHONE:

EUROPE

Sales Administration: +32-2-712-65 00

Technical Assistance: +32-2-712-65 42

EUROPEAN TOLL FREE NUMBERS

Germany: 0180 2232923

UK:

0800 960236

Spain:

900 983291

France:

0800 914032

Italy: 0800 782374

U.S.A. OR CANADA

Sales: 1-800-366-3891 Extension 73000

Technical Assistance: 1-800-366-3891

Connectivity Extension 73475

Wireless Extension 73476

ASIA/PACIFIC

Sales Administration: +65-6294-9948

Technical Assistance: +65-6393-0739

ELSEWHERE

Sales Administration: +1-952-938-8080

Technical Assistance: +1-952-917-3475

WRITE:

ADC TELECOMMUNICATIONS, INC

PO BOX 1101,

MINNEAPOLIS, MN 55440-1101, USA

ADC TELECOMMUNICATIONS (S'PORE) PTE. LTD.

100 BEACH ROAD, #18-01, SHAW TOWERS.

SINGAPORE 189702.

ADC EUROPEAN CUSTOMER SERVICE, INC

BELGICASTRAAT 2,

1930 ZAVENTEM, BELGIUM

PRODUCT INFORMATION AND TECHNICAL ASSISTANCE: [email protected]

[email protected]

[email protected]

[email protected]

13944-L

Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice.

In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability applies to all products, publications and services during and after the warranty period. This publication may be verified at any time by contacting ADC's Technical Assistance Center.

© 2005, ADC Telecommunications, Inc.

All Rights Reserved

Printed in U.S.A

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