ADC Telecommunications DVLRCSPCS Digivance Long-Range Coverage Solution Single Band User Manual 75126

ADC Telecommunications Inc Digivance Long-Range Coverage Solution Single Band 75126

Contents

manual 1

Download: ADC Telecommunications DVLRCSPCS Digivance Long-Range Coverage Solution Single Band User Manual 75126
Mirror Download [FCC.gov]ADC Telecommunications DVLRCSPCS Digivance Long-Range Coverage Solution Single Band User Manual 75126
Document ID240292
Application IDML4jWk442PurS9SXYVHrSQ==
Document Descriptionmanual 1
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeUser Manual
Display FormatAdobe Acrobat PDF - pdf
Filesize223.96kB (2799482 bits)
Date Submitted2002-05-01 00:00:00
Date Available2002-05-01 00:00:00
Creation Date2002-04-04 11:02:56
Producing SoftwareAcrobat Distiller 4.0 for Windows
Document Lastmod2002-04-19 15:16:25
Document Title75126.book
Document CreatorFrameMaker 6.0

Draft
FCC ID: F8I-DVLRCSPCS - User Manual - Part 1
ADCP-75-126
Issue B
April 2002
(Digivance™ Long-Range Coverage Solution
Single Band 1900 MHz System
(Installation and Operation Manual
17024-A
1209955 Rev A
DRAFT
ADCP-75-126
Issue B
April 2002
(Digivance™ Long-Range Coverage Solution
Single Band 1900 MHz System
(Installation and Operation Manual
1209955 Rev A
ADCP-75-126 • Issue B • April 2002 • Preface
COPYRIGHT
© 2002, ADC Telecommunications, Inc.
All Rights Reserved
Printed in the U.S.A.
REVISION HISTORY
ISSUE
DATE
04/2002
REASON FOR CHANGE
Original issue.
TRADEMARK INFORMATION
ADC and PowerWorx are registered trademarks of ADC Telecommunications, Inc.
Digivance is a trademark of ADC Telecommunications, Inc.
Procomm Plus is a registered trademark of Quarterdeck Corporation.
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 73475
(in U.S.A. or Canada) or 952-917-3475 (outside U.S.A. and Canada), or by e-mail to technical@adc.com
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
Page ii
ADCP-75-126 • Issue B • April 2002 • 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
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
SINGLE BAND SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.1
Basic Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.2
Base Transceiver Station Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
2.3
Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.4
Local Service Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.5
Remote NOC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
3.1
Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
3.2
Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.4
Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
3.5
Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
SECTION 2:
DESCRIPTION
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.4
RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.5
RF Signal Level Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.6
Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.7
Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.8
Controller Area Network Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.9
Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.10 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.11 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.12 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
REMOTE UNIT CABINET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Page iii
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Preface
TABLE OF CONTENTS
Content
Page
3.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.3
Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.4
Fiber Optic Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.5
Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3.6
AC Power Wiring Entry and Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3.7
Back-up Battery Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3.8
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
3.9
User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
SPECTRUM TRANSPORT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
4.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.4
Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.5
RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.6
Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.7
Service Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.8
Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.9
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.10 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
LINEAR POWER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
5.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
5.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
5.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
5.4
Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
5.5
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
5.6
User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
DIGIVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
6.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
6.2
Service Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
6.3
NOC Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
6.4
EMS Software User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
SECTION 3:
HOST UNIT INSTALLATION
BEFORE STARTING INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.1
Tools and Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.2
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
OSP FIBER CABLE INSTALLATION GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
WDM MOUNTING PROCEDURE (OPTIONAL ACCESSORY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Page iv
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Preface
TABLE OF CONTENTS
Content
Page
HU MOUNTING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
CHASSIS GROUND CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
COAXIAL CABLE CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
OPTICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
7.1
Optical Connections Without WDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
7.2
Optical Connections With WDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
CONTROLLER AREA NETWORK CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
SERVICE INTERFACE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
10
EXTERNAL ALARM SYSTEM CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
11
DC POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
SECTION 4:
OPERATION
BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
1.1
Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
1.2
Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
2.1
Turn-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
2.2
Download HU and RU System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
2.3
Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
2.4
Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
2.5
Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
2.6
Determine Output Signal Level at STM Antenna Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
2.7
Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
2.8
Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
2.9
Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
SECTION 5:
MAINTENANCE
SYSTEM MAINTENANCE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
FAULT DETECTION AND ALARM REPORTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
FAULT ISOLATION AND TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
TEST PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
1.1
Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
4.1
Optical Power Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
4.2
Optical Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
MAINTENANCE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
5.1
Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.2
Remote Unit Cabinet Filter Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.3
Host Unit Fan Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Page v
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Preface
TABLE OF CONTENTS
Content
Page
5.4
Spectrum Transport Module Fan Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
5.5
Linear Power Amplifier Fan Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
SECTION 6:
GENERAL INFORMATION
WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
SOFTWARE SERVICE AGREEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
REPAIR CHARGES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
REPLACEMENT/SPARE PRODUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
RETURNED MATERIAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
CUSTOMER INFORMATION AND ASSISTANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Page vi
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Preface
ABOUT THIS MANUAL
This installation and operation manual provides the following information:
• An overview of the Digivance single band 1900 MHz Long-Range Coverage Solution
(LRCS).
• A description of the basic system components including the Host Unit (HU), Spectrum
Transport Module (STM), Linear Power Amplifier (LPA), Remote Unit (RU) cabinet, and
Digivance Element Management System (EMS).
• Installation procedures for the HU.
• Procedures for tuning-up the system and verifying that the system is functioning properly.
• Procedures for maintaining the system including troubleshooting problems and replacing
faulty components.
• Product warranty, repair, return, and replacement information.
The procedures for installing the remote unit 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 all the 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 73475 (in U.S.A. or Canada) or 952-917-3475 (outside U.S.A. and
Canada).
Title/Description
ADCP Number
Digivance LRCS Single Band 800 and 1900 MHz Remote Unit
Installation Instructions
Provides instructions for installing the STM, LPA, and optional battery in the
remote unit cabinet and for installing and connecting the fiber optic, coaxial,
and AC power cables.
75-122
Digivance LRCS Single Band Remote Unit Cabinet Installation Instructions
Provides instructions for locating and mounting the remote unit cabinet.
75-117
Digivance Element Management System Version 2.0 User Manual
Provides instructions for installing the Digivance EMS software and for using
both the Graphical User Interface (GUI) and the Network Operations Center
(NOC) versions of the software.
75-125
Page vii
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • 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
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Preface
STANDARDS CERTIFICATION
FCC: This equipment complies with the applicable sections of Title 47 CFR Part 24.
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.
LIST OF ACRONYMS AND ABBREVIATIONS
The acronyms and abbreviations used in this manual are detailed in the following list:
AC
ASCII
Att
AWG
BER
BTS
CAN
CDRH
CD-ROM
COM
Config
CUL
DC
DCE
Div
DTE
EIA
EMS
ESD
FCC
FDA
FSO
Fwd
GFCI
GUI
Alternating Current
American Standard Code for Information Interchange
Attenuation
American Wire Gauge
Bit Error Rate
Base Transceiver Station
Centigrade
Controller Area Network
Center for Devices and Radiological Health
Compact Disk Read Only Memory
Common
Configuration
Canadian Underwriters Laboratories
Direct Current
Data Communications Equipment
Diversity
Data Terminal Equipment
Electronic Industries Association
Element Management System
Electrostatic Discharge
Fahrenheit
Federal Communications Commission
Food and Drug Administration
Free Space Optics
Forward
Ground Fault Circuit Interrupter
Graphical User Interface
Page ix
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Preface
HU
IC
LED
LPA
LRCS
MHz
MPE
MTBF
NC
NEM
NO
NOC
NPT
OSP
PA
PC
PCS
Prg
Pwr
Rev
RF
RIM
RMA
RU
RX
SMR
STM
TX
UL
VAC
VDC
VSWR
WECO
WDM
Page x
© 2002, ADC Telecommunications, Inc.
Host Unit
Industry Canada
Light Emitting Diode
Linear Power Amplifier
Long-Range Coverage Solution
Mega Hertz
Maximum Permissible Exposure
Mean Time Between Failure
Normally Closed
Network Element Manager
Normally Open
Network Operations Center
National Pipe Tapered
Outside Plant
Power Amplifier
Personal Computer
Personal Communications System
Program
Power
Reverse
Radio Frequency
Radio Interface Module
Return Material Authorization
Remote Unit
Receive or Receiver
Specialized Mobile Radio
Spectrum Transport Module
Transmit or Transmitter
Underwriters Laboratories
Volts Alternating Current
Volts Direct Current
Voltage Standing Wave Ratio
Western Electric Company
Wave Division Multiplexer
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
SECTION 1: OVERVIEW
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
SINGLE BAND SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.1
Basic Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.2
Base Transceiver Station Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
2.3
Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.4
Local Service Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.5
Remote NOC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
3.1
Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
3.2
Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
3.4
Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
3.5
Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
_________________________________________________________________________________________________________
INTRODUCTION
This section provides basic description, application, and configuration information about the
Digivance single band 1900 MHz Long-Range Coverage Solution (LRCS). Throughout this
publication, all items referenced as “accessory items” are not furnished with the basic product
and must be purchased separately.
SINGLE BAND SYSTEM OVERVIEW
The Digivance single band 1900 MHz LRCS is an RF signal transport system that provides
long-range RF coverage in areas where it is impractical to place a Base Transceiver Station
(BTS) at the antenna site. High real estate costs and community restrictions on tower and
equipment locations often make it difficult to install the BTS at the same location as the
antenna. The Digivance LRCS is designed to overcome equipment placement problems by
allowing base stations to be hubbed at a central location while placing remote antennas at
optimum locations with minimal real estate requirements. With the Digivance LRCS, RF
signals can be transported to one or more 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 Components
The basic components of a single band Digivance LRCS system and their functions are shown
in Figure 1-1. A single band LRCS system consists of a Host Unit (HU) and a Remote Unit
(RU). Control and monitoring functions are provided by the Digivance Element Management
System (EMS). On an optional basis, each HU and RU system may be ordered either with or
without reverse path diversity. In addition, various accessory items including a back-up battery
kit (for the RU), a Wave Division Multiplexer (WDM) module (for the HU and RU), network
cables (for connecting multiple HU’s together), and EMS cable (for connecting the EMS
computer to the HU) are available separately.
Page 1-1
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
EBTS
RF
CD-ROM WITH EMS
SOFTWARE
HOST UNIT
CONTROLLER AREA
NETWORK
NETWORK
OPERATIONS
CENTER
(REMOTE INTERFACE)
REMOTE UNIT
LAPTOP
(LOCAL INTERFACE)
EBTS
RS-232
RF
HOST UNIT
REMOTE UNIT
DATA
NETWORK
EBTS
RS-232 ASCII
RF
RS-232
HOST UNIT
DIGIVANCE ELEMENT
MANAGEMENT SYSTEM
REMOTE UNIT
16969-B
Figure 1-1. System Overview Diagram
2.2
Base Transceiver Station Interface
The HU is co-located with the BTS and interfaces directly with the BTS over coaxial cables. In
the forward path, the HU receives RF signals from the BTS. 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 RF signals for transmission to the BTS.
Page 1-2
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
2.3
Handset Interface
The RU interfaces with the handsets through an antenna. In the reverse path, the RU receives RF
signals from each handset. The RU digitizes the RF signals and then converts them to digital
optical signals for transport to the HU. 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 which transmits and receives the handset RF
signals.
2.4
Local Service Interface
Local communications with an individual Digivance LRCS system is supported through a local
service interface capability. The primary component of the local interface is a PC-type laptop
computer loaded with the Digivance Element Management System (EMS) software. The EMS
provides the various control and monitoring functions required for local management of each
LRSC system. The EMS computer can be directly connected to either the HU or RU through the
computer’s RS-232 port. Operation is effected 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.
2.5
Remote NOC Interface
Remote communications between a Network Operations Center (NOC) and a networked
grouping of multiple Digivance LRCS systems is supported by a remote NOC interface
capability. The primary component of the remote NOC interface is a PC-type desktop computer
loaded with the Digivance Element Management System (EMS) software. In addition to the local
management functions described in the previous section, the EMS also provides the various
control and monitoring functions required for remote management of multiple LRSC systems
through a NOC.
A Controller Area Network (CAN) port is provided on each HU so that up to twenty-four HU’s
can be networked together in daisy-chain fashion and controlled though the same EMS
computer. The EMS computer connects to the networked HU’s through the computer’s RS-232
port #1. All HU’s can then be controlled through the same EMS computer.
The NOC is connected to the EMS computer through a data network or dial-up modem. The
EMS computer’s RS-232 port #2 interfaces with the data network equipment. The network or
dial-up modem equipment must be capable of interfacing with an RS-232 ASCII interface port.
At the NOC, control and monitoring of the networked LRCS systems are effected 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. The EMS computer may also be used locally to
manage the networked LRCS systems. Local operation is through the EMS software GUI.
Page 1-3
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
SYSTEM FUNCTIONS AND FEATURES
This section describes various system level functions and features of the Digivance LRCS.
3.1
Fiber Optic Transport
On an optional basis, the Digivance LRCS is available either with or without reverse path
diversity. On non-diversity systems that do not use a WDM module, the HU is connected to the
RU over a pair of 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 non-diversity system that does not include the WDM module
is shown in Figure 1-2.
EBTS
BTS
COAX
FIBER OPTIC
LINK
HOST UNIT
REMOTE UNIT
FORWARD PATH
REVERSE PATH
16996-A
Figure 1-2. Fiber Optic Transport without Diversity and Without WDM Module
On diversity systems that do not use a WDM module, the HU is connected to the RU over three
single-mode optical fibers. One of the optical fibers is used to transport the forward path optical
signal. A second optical fiber is used to transport the primary reverse path optical signal. The
third optical fiber is used to transport the diversity reverse path optical signal. A diagram of the
fiber optic transport system with the diversity option is shown in Figure 1-3.
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 system provides an
optical budget of 25 dB (typical) when used with 9/125 single-mode fiber.
Page 1-4
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
EBTS
COAX
FIBER OPTIC
LINK
HOST UNIT
REMOTE UNIT
FORWARD PATH
PRIMARY
REVERSE PATH
DIVERSITY
REVERSE PATH
16997-A
Figure 1-3. Fiber Optic Transport with Diversity and Without WDM Module
The optical wavelengths used in the 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, a
pair of bi-directional wavelength division multiplexers (WDM) may be used in applications
where it is desirable to combine the forward path and reverse path optical signals on a single
optical fiber. One WDM may be mounted with the HU and the other WDM mounted with the
RU. A diagram of a fiber optic transport system with a WDM application is shown in
Figure 1-4. The WDMs are available as accessory items.
EBTS
COAX
FIBER OPTIC
LINK
REMOTE UNIT
HOST UNIT
WDM
FORWARD PATH
AND PRIMARY
REVERSE PATH
WDM
DIVERSITY
REVERSE PATH
16998-A
Figure 1-4. Wavelength Division Multiplexer Application
Page 1-5
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
Because separate forward and reverse path optical inputs and outputs are provided at the HU
and RU, 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 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 1-5. FSO systems are available from various equipment manufacturers.
EBTS
COAX
FREE SPACE OPTICS LINK
HOST UNIT
FORWARD
PATH
PRIMARY
REVERSE PATH
FSO
TX/RX
FSO
TX/RX
FORWARD
PATH
REMOTE UNIT
PRIMARY
REVERSE PATH
16999-A
Figure 1-5. Free Space Optics Application
3.2
Control and Monitoring Software
The Digivance EMS software supports system control and monitoring functions for both the
local and remote service interfaces. The EMS software is stored on a CD-ROM and shipped
separately with each HU. Software installation consists of copying the software files from the
CD-ROM to a designated directory on the hard-drive of the EMS computer. The EMS software
may also be copied to the hard-drive of a laptop computer when a local service interface
connection with a specific HU or RU is required.
The EMS software is used to provision and configure the system for operation. This includes
selecting a sitename, setting alarm thresholds, and setting forward and reverse path RF gain
adjustments. The EMS software is also used to get alarm messages (individual or summary),
data measurements, or to upgrade the HU/RU system software. All control and monitor
functions (except software upgrade which can only be done using the EMS software GUI) can
be effected using either the NOC/NEM 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 or the EMS software GUI.
Page 1-6
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
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. The RU is powered by 120 or 240 Vac (50 or 60 Hz) and must be
hard-wired to the AC power source through a 20 Amp breaker box. The RU is pre-wired for 120
Vac operation but can be converted to 240 Vac operation if required. The RU is equipped with a
surge protector to prevent equipment damage from AC power spikes and a lighting protector to
prevent equipment damage from lighting surges. A 120 Vac outlet is provided within the RU
cabinet for powering for test equipment or power tools. On an optional basis, a back-up battery
kit is available for the RU. 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 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 rackmount applications and may mounted in either a 19- or 23-inch WECO or EIA equipment rack,
usually within 20 feet of the BTS.
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, and a selfcontained cabinet which houses the modular components and protects them from the elements.
The RU cabinet is weather-tight but contact with salt-air mist should be avoided as it may
degrade the MTBF of the product. The cabinet can be mounted from a flat-vertical surface or
from a utility pole (requires pole-mount kit). Slots are provided within the cabinet for mounting
the STM and LPA modules. A storage spool is provided for storing short lengths of excess fiber
slack. A bracket is provided for mounting a WDM module (accessory item). A tray with a
heated base is provided for mounting the back-up battery (accessory item).
Page 1-7
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 1: Overview
Blank
Page 1-8
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
SECTION 2: DESCRIPTION
Content
Page
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.4
RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.5
RF Signal Level Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.6
Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.7
Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.8
Controller Area Network Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.9
Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.10 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.11 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.12 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
REMOTE UNIT CABINET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
3.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
3.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
3.3
Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
3.4
Fiber Optic Cable Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
3.5
Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
3.6
AC Power Wiring Entry and Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
3.7
Back-up Battery Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
3.8
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
3.9
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
SPECTRUM TRANSPORT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
4.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.4
Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.5
RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
4.6
Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.7
Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.8
Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.9
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.10 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
LINEAR POWER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
5.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
5.2
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
5.3
Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
5.4
Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
5.5
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
5.6
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Page 2-1
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
DIGIVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
6.1
Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
6.2
Service Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
6.3
NOC Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
6.4
EMS Software User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
_________________________________________________________________________________________________________
INTRODUCTION
This section describes the basic components of the Digivance 1900 MHz LRCS system
including the Host Unit (HU), the Remote Unit (RU), and the Element Management System
(EMS). The RU is an assembly that consists of a cabinet, a Spectrum Transport Module (STM),
and a Linear Power Amplifier (LPA) module. For clarity, the various components that comprise
the RU are described separately.
HOST UNIT
The HU, shown in Figure 2-1, serves as the BTS servicing unit for the Digivance LRCS. The
HU provides the following basic functions:
• Provides an adjustable RF interface with the BTS.
• Provides a fiber optic interface with the RU.
• Digitizes the forward path composite RF signal.
• Converts the digitized forward path RF signal to a digital optical signal.
• Converts the digitized reverse path optical signal to a digitized RF signal.
• Converts the digitized reverse path RF signal to a composite RF signal.
• Signals alarm information to an external alarm system through relay contact closures
• Provides an RS-232 interface for connecting the EMS computer.
• 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-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. All controls, connectors, and indicators
(except the power terminal strip) are mounted on the HU front panel for convenient access.
Cable management functions for the coaxial cables and copper wiring are provided by a cable
management tray that extends outward from the HU front panel.
Page 2-2
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
17.2 INCHES
(437 mm)
FRONT PANEL
MOUNTING
BRACKET
(BOTH SIDES)
3.5 INCHES
(89 mm)
11.4 INCHES
(290 mm)
15.3 INCHES
(389 mm)
CABLE MANAGEMENT
TRAY
16796-A
Figure 2-1. Host Unit
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.
The cable management tray extends 3.9 inches (99 mm) beyond the front panel. Fasteners are
provided for securing the HU to the equipment rack.
2.3
Fault Detection and Alarm Reporting
The HU detects and reports various 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.
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 also over the optical
fiber to the RU. In addition, the state of the RU is received over the optical fiber and reported
over the service interface and the CAN interface. This information may be accessed remotely
through the NOC/NEM interface or locally through the EMS software GUI.
2.4
RF Signal Connections
The RF signal connections between the HU and the BTS are supported through either two (nondiversity unit) or three (diversity unit) N-type female connectors. On non-diversity units, one
connector is used for the forward path RF signal. The other connector is used for the reverse
path RF signal. On diversity units, a third connector is used for the diversity path RF signal. In
Page 2-3
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
most installations, it is usually necessary to install an external attenuator in the forward path link
between the HU and the BTS. The HU should be as close as possible to the BTS to minimize
cable losses.
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 30 dB
and can be set in 1 dB increments. The attenuators are software controlled and are adjusted
through the NOC/NEM interface or the EMS software GUI.
The host forward path attenuator adjusts the level of the input RF signal to the HU. Using the
forward path attenuator, an input signal with a nominal composite signal level of –10 dBm to
–40 dBm can be adjusted to produce maximum power output. An external attenuator is
required if the input signal level is greater than –10 dBm.
The host reverse path attenuator adjusts the level of the output RF signal and will add from
0 dB of gain (attenuator set to 30 dB) to 30 dB of gain (attenuator set to 0 dB) to the output
signal at the HU. The host diversity reverse path attenuator provides the same function as the
host reverse path attenuator but for the diversity reverse path.
2.6
Propagation Delay
The HU forward, reverse, and diversity reverse path propagation delays may be adjusted in 1 µs
increments within a range of 0–63 µs. The propagation delay is software controlled and may be
adjusted through the NOC/NEM interface or the EMS software GUI.
2.7
Optical Connection
Optical connections between the HU and the RU (STM) are supported through either two (nondiversity unit) or three (diversity unit) SC-type optical connector ports. On non-diversity units,
one port is used for connecting the forward path optical signal and the other port is used for
connecting the primary reverse path optical signal. On diversity units, a third optical port is used
for connecting the diversity reverse path optical signal.
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 Digivance EMS computer.
2.9
Service Interface Connection
The service interface connection between the HU and the Digivance 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.
Page 2-4
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
2.10 Powering
The HU is powered by ± 24 or ± 48 Vdc power. The power is fed to the HU through a screwdown 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 20 position PowerWorx 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.
2.11 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 provided if a high temperature
condition (>50º C/122º F) occurs. The fans may be field-replaced if either fan fails.
2.12 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.
(16) REVERSE
RF OUT
(1) DC POWER
ON/OFF SWITCH
(2)
PORT 1
(3)
(4)
PORT 2 PORT 3
(REFERENCE
ITEMS 5 - 11)
LED INDICATORS
(12) SERVICE
INTERFACE
CONNECTOR
(17) REVERSE 2
RF OUT
(13) NET IN
CONNECTOR
(14) NET OUT
CONNECTOR
NOTE: SHOWN WITHOUT
CABLE MANAGEMENT TRAY
(18) FORWARD
RF IN
(15) ALARM
OUTPUT
CONNECTOR
16800-A
Figure 2-2. Host Unit User Interface
Table 2-1. Host Unit User Interface
REF
NO
USER INTERFACE
DESIGNATION
DEVICE
FUNCTIONAL
DESCRIPTION
1/0
On/Off rocker
switch
Provides DC power on/off control.
PORT 1
SC connector
(single-mode)
Connection point for the forward path optical
fiber.
Page 2-5
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
Table 2-1. Host Unit User Interface, continued
REF
NO
USER INTERFACE
DESIGNATION
DEVICE
FUNCTIONAL
DESCRIPTION
PORT 2
SC connector
(single-mode)
Connection point for the reverse path primary
optical fiber.
PORT 3
(diversity unit only)
SC connector
(single-mode)
Connection point for the reverse path diversity
optical fiber.
POWER
Multi-colored LED
(green/yellow)
Indicates if the HU is powered (green) or unpowered (off). See Note.
STANDBY
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.
HOST UNIT
Multi-colored LED
(green/yellow/red)
Indicates if the HU is normal (green), overheated
(yellow), or faulty (red). See Note.
REMOTE UNIT
Multi-colored LED
(green/yellow/red)
Indicates if no alarms (green), a minor alarm
(yellow), or a major alarm (red) is detected at the
RU. See Note.
DRIVE
Multi-colored LED
(green/yellow/red)
Indicates if the level of the RF input signal to the
HU is normal (green), low (yellow), or high
(red). See Note.
10
PORT 1/PORT 2
Multi-colored LED
(green/yellow/red)
Indicates if the reverse path optical signal
received from the RU is normal (green), if no signal is detected (red), or if errors are detected
(red). See Note.
11
PORT 3
(diversity unit only)
Multi-colored LED
(green/yellow)
Indicates if the diversity reverse path optical signal received from the RU is normal (green), if no
signal is detected (yellow), or if errors are
detected (yellow). See Note.
12
SERVICE
DB-9 connector
(female)
Connection point for the RS-232 service interface cable.
13
NET IN
RJ-45 jack (female)
Connection point for the CAN interface input
cable.
14
NET OUT
RJ-45 jack (female)
Connection point for the CAN interface output
cable.
15
ALARM OUTPUT
Screw-type terminal
connector (14–26
AWG)
Connection point for an external alarm system.
Includes normally open (NO), normally closed
(NC), and common (COM) wiring connections.
16
REVERSE RF OUT
N-type female RF
coaxial connector
Connection point for the primary reverse path RF
coaxial cable.
17
REVERSE 2 RF OUT
N-type female RF
coaxial connector
Connection point for the diversity reverse path
RF coaxial cable.
18
FORWARD RF IN
N-type female RF
coaxial connector
Connection point for the forward path RF coaxial
cable.
POWER 24–48 VDC
Screw-type terminal
(Rear side - not shown) strip
Connection point for the DC power wiring.
Note: A more detailed description of LED operation is provided in Section 5.
Page 2-6
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
REMOTE UNIT CABINET
The RU cabinet, shown in Figure 2-3, is a NEMA-3R enclosure (with removable dust filter) that
provides the following basic functions:
• Houses the various electronic modules (STM and LPA) and accessories (back-up battery
kit and WDM kit) and protects them from the weather.
• Provides electrical interface connections for the STM and LPA modules.
• Provides ventilation openings to allow the entry of cool air and the escape of heated air.
• Provides a point for terminating the coaxial antenna cable, the fiber optic cable, the AC
power cable, and ground cable.
• Provides AC power surge protection
• Provides lightning protection
• Provides access to an AC power outlet for test equipment and power tools.
• Provides limited storage for fiber optic pigtails.
• Provides a warming pad for the battery
24.9 IN
(632 MM)
28.4 IN
(721 MM)
17.4 IN
(442 MM)
NOTE: EACH DIMENSION INCLUDES AN
ALLOWANCE FOR ANY COMPONENT THAT
PROJECTS OUTWARD FROM THE CABINET
SUCH AS THE DOOR LATCH OR VENT HOOD.
16792-A
Figure 2-3. Remote Unit Cabinet
Page 2-7
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
3.1
Primary Components
The RU cabinet consists of the enclosure, a mounting shelf for the STM and LPA modules, an
AC power interface, a lightning protector, a mounting shelf for the back-up battery accessory, a
fiber storage spool, and a mounting bracket for the WDM accessory. The RU cabinet is designed
for use in either an outdoor or indoor environment. Opening the hinged door provides full height
and width access to the interior of the enclosure to facilitate module and cable installation.
The enclosure is constructed of heavy gauge aluminum and is painted putty white for corrosion
protection. Connection and entry points are provided in the bottom of the enclosure for the
antenna coaxial cable, fiber optic cable, and AC power cable. Vent openings are provided in the
door and the rear side of the enclosure to permit air exchange for cooling. The RU 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 holes in the bottom of the cabinet allow any
moisture that does enter the cabinet to drain out. The cabinet door is equipped with a sturdy
latch so that the enclosure may be padlocked to prevent unauthorized entry. A door open switch
is provided so that a major alarm is generated whenever the cabinet door is opened.
3.2
Mounting
The RU cabinet may be mounted on a flat vertical surface (such as the side of building) or on a
utility pole. A special mounting bracket is provided with each enclosure. Installation consists of
securing the bracket to the mounting surface and then hanging the enclosure from the bracket.
The mounting bracket may be attached to a variety of surfaces such as wood, concrete, or
masonry. Various fasteners including hex-head capscrews, tee-nuts, and concrete anchors are
provided. A separate pole-mounting kit (accessory item) is available for attaching the mounting
bracket to a utility pole.
3.3
Module Installation
A mounting shelf is provided within the RU cabinet for installing the STM and LPA modules.
The mounting shelf includes tracks that guide each module into the installed position. Separate
mounting locations are provided for each type of module. Two D-sub connectors (one male, one
female) are located at the rear of the mounting shelf. Each mounting shelf connector mates with
a corresponding D-sub connector located on the rear side of each module. A wiring harness
links the mounting shelf connectors together. The connectors and the attached wiring harness
provide the electrical interface between the STM and LPA modules. The modules are held in the
installed position with captive screws.
3.4
Fiber Optic Cable Entry
A plastic cord connector is provided in the exterior bottom side of the RU cabinet for routing a
fiber optic cable into the enclosure. The cord connector provides cable strain relief and a
watertight seal at the fiber optic cable entry point. As the connector nut is tightened, a soft
neoprene bushing compresses to tightly grip the cable without applying excessive force to the
fibers. The cord connector can accommodate cables that range from 0.375 to 0.875 inches (10 to
Page 2-8
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
23 mm) in diameter. A spool is provided directly above the fiber optic cable entry hole for
storing excess pigtail slack.
In a typical installation, the connectorized end of a mulit-fiber outside plant cable is routed into
the enclosure through the cord connector and the individual fibers are broken out into pigtails.
The pigtails are connected to the optical ports on the STM and the excess pigtail slack is stored
on the fiber storage spool. The stub end of the cable is routed to an external splice enclosure (not
provided) for splicing to the fiber optic cable.
3.5
Antenna Cable Connection
An N-type female connector is provided on the exterior bottom side of the RU cabinet for
connecting the primary antenna coaxial cable. The exterior connector is on the surge side of a
lightning protector that is mounted on the interior bottom side of the enclosure. On the inside of
the enclosure, a second N-type female connector is provided on the protected side of the
lightning protector. A coaxial jumper cable (included with the enclosure) is used for connecting
the protected side N-type connector to the ANTENNA port on the STM.
A diversity lightning protector kit (accessory item) is available if a diversity STM is mounted in
the enclosure. A diversity lightning protector (Catalog # DGVL-000010LADK) is required if a
diversity antenna is installed. A hole is provided in the bottom of the enclosure for mounting the
diversity lightning protector.
3.6
AC Power Wiring Entry and Grounding
A 3/4-inch NPT threaded hole is provided in the exterior bottom side of the RU cabinet for
connecting a standard 3/4-inch AC conduit fitting to the enclosure. A 3/4-inch to 1/2-inch
reducer is also included with the enclosure if 1/2-inch conduit is preferred over 3/4-inch
conduit. The conduit should be installed between the enclosure and an external 20 Amp breaker
box (not provided) and all AC power wiring (three wires required) should be run within the
conduit. Three lead wires (Hot, Neutral, and Ground) are provided within the enclosure for
connection to the AC wiring. Three wire nuts are included with the enclosure for completing the
connection. A grounding lug is provided on the underside of the enclosure for connecting the
RU cabinet to an earth ground source.
The standard RU cabinet is equipped with a 120 VAC Ground Fault Circuit Interrupter (GFCI)
outlet and should only be wired for operation on 120 VAC current. The cabinet may be re-wired
for 240 VAC if required.
3.7
Back-up Battery Kit
A back-up battery kit (accessory item) is available when the application requires that the system
remain operational during an AC power outage. A tray is provided within the enclosure for
mounting the battery. The battery tray includes a heating pad that keeps the battery warm during
cold weather. A temperature sensor regulates the operation of the heating pad 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
Page 2-9
© 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
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 at 50 Watts.
3.8
Ventilation
Vent openings are provided in the door and the rear side of the RU cabinet to permit air
exchange for cooling. Air enters the enclosure through the opening in the door. A filter on the
inside of the door removes dirt particles so that only clean air enters the enclosure. Both
modules have cooling fans. The STM has a rear mounted fan that pulls air through the module
and exhausts it toward the rear of the enclosure. The heated air exits through an opening in the
rear side of the enclosure. The LPA works in a similar manner except it also has a fan on the
front to help draw air into the module.
3.9
User Interface
The RU 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 RU cabinet user
interface points are described in Table 2-2 and indicated in Figure 2-4.
Table 2-2. Remote Unit Cabinet User Interface
REF
NO
DEVICE
FUNCTIONAL DESCRIPTION
Air inlet filter
A reusable filter that prevents the entry of dirt particles when outside air is pulled into the cabinet for cooling.
AC power cord
Provides AC power to the STM.
Circuit breaker reset switch Used to reset the battery heater circuit following correction of an
overcurrent condition.
Door switch
Indicates to the fault detection and alarm reporting system if the
cabinet door is open (major alarm) or closed.
Module mounting shelf
Provides a mounting point for the STM and LPA modules.
Battery tray
Provides a mounting point for the back-up battery (when used).
120 Vac GFCI outlet
(standard)
Standard 120 Vac GFCI outlet for connecting AC power tools or
test equipment.
Fiber slack spool
Provides a storage place for excess fiber pigtail slack.
Lightning protector
Provides lightning surge protection for the antenna connection.
10
Fiber cable connector
Provides both an entry point and strain relief for the fiber optic
cable.
11
3/4-inch NPT threaded hole Provides a connection point for a 3/4-inch AC conduit fitting.
12
Grounding lug
Page 2-10
© 2002, ADC Telecommunications, Inc.
Provides a connection point for an external grounding cable.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description
(2) AC POWER
CORD
(1) AIR INLET FILTER
(3) CIRCUIT BREAKER
RESET SWITCH
(4) DOOR
SWITCH
(7) GFCI OUTLET
(9) LIGHTNING
PROTECTOR
(5) MODULE MOUNTING
SHELF
(6) BATTERY TRAY
(8) FIBER SLACK
SPOOL
BOTTOM VIEW
OF CABINET
16793-B
(10) FIBER CABLE
CONNECTOR
(11) THREADS FOR
AC CONDUIT FITTING
(12) GROUNDING LUG
Figure 2-4. Remote Unit Cabinet User Interface
Page 2-11
© 2002, ADC Telecommunications, Inc.
Source Exif Data: 
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : No
Producer                        : Acrobat Distiller 4.0 for Windows
Title                           : 75126.book
Modify Date                     : 2002:04:19 15:16:25-05:00
Create Date                     : 2002:04:04 11:02:56
Creator                         : FrameMaker 6.0
Page Count                      : 30
Page Mode                       : UseOutlines
EXIF Metadata provided by EXIF.tools
FCC ID Filing: F8I-DVLRCSPCS

Navigation menu