ADC DSC0802P User Manual

ADCP-75-187
September 2006
Issue 3
Digivance® Street-Level Coverage Solution 800 MHz, 1900 MHz, and 800/900 MHz SMR System Operation and Maintenance Manual
20576-A
1346357 Rev B
ADCP-75-187
September 2006
Issue 3
Digivance® Street-Level Coverage Solution 800 MHz, 1900 MHz, 800/900 MHz SMR System Operation and Maintenance Manual
1346357 Rev B
ADCP-75-187 • Issue 3 • September 2006 • Preface
COPYRIGHT
© 2006, ADC Telecommunications, Inc. All Rights Reserved
REVISION HISTORY
ISSUE DATE REASON FOR CHANGE
1 09/2005 Original issue.
2 06/2006 Release of single-band and dual-band remote units that support 800 and 1900 MHz operation and inclu-
3 09/2006 Non-technical changes for agency approvals.
sion of the RLM feature in the 800 and 1900 MHz remote units.
LIST OF CHANGES
The technical changes incorporated into this issue are listed below.
PAGE IDENTIFIER DESCRIPTION OF CHANGE
ix Standards Added FCC Part 15.5 statement.
2-25 Table 2-7 Deleted references to 1900 MHz Band G
TRADEMARK INFORMATION
ADC and Digivance are registered trademarks of ADC Telecommunications, Inc.
OptiTap is a trademark of Corning Incorporated.
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 wireless.tac@adc.com
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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
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2 SCS SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.1 Basic SCS System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.2 Enhanced Base Transceiver Station Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.3 Subscriber Unit Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.4 Local Management 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
3.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
3.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
3.5 Equipment Mounting and Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
4 DUAL-BAND REMOTE UNIT SCS SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
ADCP-75-187 • Issue 3 • September 2006 • Preface
SECTION 1:
OVERVIEW
SECTION 2:
DESCRIPTION
1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2 HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.4 RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.9 Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.10 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.11 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Preface
TABLE OF CONTENTS
Content Page
2.12 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
3 REMOTE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
3.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
3.4 Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.5 RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.6 Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.7 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.8 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
3.9 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
3.10 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
4 ACCESSORY ITEMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.1 Strand Mount Kit for RU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.2 Lightning Protector for RU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.3 Solar Shields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
5 DIGIVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
5.1 Digivance EMS Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
5.2 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
5.3 Computer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
5.4 Digivance EMS Computer Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
5.5 Digivance Software User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
6 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
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 Reference Procedure: Determine Forward Path Input Signal Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
2.2 Reference Procedure: Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
2.3 Reference Procedure: Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
2.4 Reference Procedure: Determine Output Signal Level at RU Antenna Port. . . . . . . . . . . . . . . . . . . . . . . . . 3-12
2.5 Reference Procedure: Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
2.6 Reference Procedure: Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
2.7 Reference Procedure: Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
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© 2006, ADC Telecommunications, Inc.
SECTION 3:
OPERATION
TABLE OF CONTENTS
Content Page
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
3.1 Host Unit Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
3.2 RU Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
4 TEST PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
4.1 Optical Power Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
4.2 Optical Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
5 SCHEDULED MAINTENANCE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
ADCP-75-187 • Issue 3 • September 2006 • Preface
SECTION 4:
MAINTENANCE
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
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Preface
TABLE OF CONTENTS
Content Page
Blank
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© 2006, ADC Telecommunications, Inc.

ABOUT THIS MANUAL

This operation and maintenance manual provides the following information:
• An overview of the Digivance Street-Level Coverage Solution (SCS) system.
• A basic description of the system components including the Host Unit (HU), Remote Unit (RU), and Digivance Element Management System (EMS).
• Procedures for turning-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 host unit, 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 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).
ADCP-75-187 • Issue 3 • September 2006 • Preface
Title/Description ADCP Number
Digivance LRCS and SCS Systems 800/900 MHz SMR Rear Access Host Unit Installation and Maintenance Manual 75-180
Provides instructions for mounting the rear access host unit in an equipment rack, installing and connecting the various cables, and replacing the cooling fans.
Digivance SCS System Interim Single-Band Remote Unit Installation Manual 75-190
Provides instructions for mounting the interim single-band remote unit and for installing and connecting the various cables.
Digivance SCS System Single-Band Remote Unit Installation Manual 75-188
Provides instructions for mounting the single-band remote unit and for installing and connecting the various cables.
Digivance SCS System Dual-Band Remote Unit Installation and Maintenance Manual 75-189
Provides instructions for mounting the dual-band remote unit and for installing and connecting the various cables.
Digivance Element Management System Version 7.0 User Manual 75-201
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 Version 7.1 User Manual 75-202
Describes how to install, configure, and use the LRCS SNMP Proxy Agent.
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • 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.
Warn ing: 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.
Warn ing: 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).
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© 2006, ADC Telecommunications, Inc.

STANDARDS CERTIFICATION

Each respective SMR, Cellular, and PCS system in the SCS platform is FCC and IC approved. Information in this manual explains applicable portions of these systems.
FCC: The Digivance SCS system complies with the applicable sections of Title 47 CFR Parts 22, 24, and 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.
Caution: Modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Part 15.5 General conditions of operation:
a. Persons operating intentional or unintentional radiators shall not be deemed to have
any vested or recognizable right to continue use of any given frequency by virtue of prior registration or certificate of equipment.
b. Operation of an intentional, unintentional, or incidental radiator is subject to the
conditions that no harmful interference is caused and that interference must be accepted that may be caused by the operation of an authorized radio station, by another intentional or unintentional radiator, by industrial, scientific and medical (ISM) equipment, or by an incidental operator.
ADCP-75-187 • Issue 3 • September 2006 • Preface
c. The operator of a radio frequency device shall be required to cease operating the
device upon notification by a Commission representative that the device is causing harmful interference. Operation shall not resume until the condition causing the harmful interference has been corrected.
UL/CUL: The Host Unit complies with UL and CUL 60950 Standard for Safety for Information Technology Equipment including Electrical Business Equipment.
The Remote Unit complies with NEMA Type 6, UL and CUL 50, Standard for Enclosures for Electrical Equipment.
The Remote Unit provides the degree of protection specified by IP67 as defined in IEC (International Electrotechnical Commission) Publication 60529.
The Remote Unit complies with UL and CUL 60950 and UL 50 as Communication Service Equipment under the DUZO category.
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.
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Preface

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
AW G 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
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
FWD Forward
GUI Graphical User Interface
HU Host Unit
IC Industry Canada
IEC International Electrotechnical Commission
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
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© 2006, ADC Telecommunications, Inc.
OSP Outside Plant
PA Power Amplifier
PC Personal Computer
PCS Personal Communications System
Rev Reverse
RF Radio Frequency
RMA Return Material Authorization
RU Remote Unit RX Receive or Receiver
SCS Street-Level Coverage Solution
SNMP Simple Network Management Protocol
SMR Specialized Mobile Radio STM Spectrum Transport Module
TX Transmit or Transmitter UL Underwriters Laboratories
VA C Volts Alternating Current
VDC Volts Direct Current
VSWR Voltage Standing Wave Ratio
WDM Wavelength Division Multiplexer
WECO Western Electric Company
ADCP-75-187 • Issue 3 • September 2006 • Preface
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Preface
Blank
Page xii
© 2006, ADC Telecommunications, Inc.

SECTION 1: OVERVIEW

1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2 SCS SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.1 Basic SCS System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2.2 Enhanced Base Transceiver Station Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.3 Subscriber Unit Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2.4 Local Management 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
3.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
3.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
3.5 Equipment Mounting and Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
4 DUAL-BAND REMOTE UNIT SCS SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
_________________________________________________________________________________________________________
ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW

1 INTRODUCTION

This section provides basic description, application, and configuration information about the Digivance SCS system. Throughout this publication, all items referenced as “accessory items” are not furnished with the basic product and must be purchased separately.

2 SCS SYSTEM OVERVIEW

The Digivance Long Range Coverage Solution (LRCS) system is an RF signal transport system that provides long-range RF coverage to 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 LRCS system overcomes equipment placement problems by hubbing base stations at a central location and placing antennas at remote locations with minimal real estate requirements. The LRCS system transports RF signals 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.
The SCS system provides the same functionality as the LRCS system but incorporates a low profile, low power, low cost remote unit. The SCS system remote unit complements the high power remote unit used with LRCS systems. The primary application includes urban areas where multiple, strategically placed, low power remote units provide better coverage than high power remote units.

2.1 Basic SCS System Components

The basic components of a typical Digivance SCS system and their function are shown in
Figure 1-1. A basic SCS system consists of a Host Unit (HU) and a Remote Unit (RU). The HU
consists of a rack-mountable chassis that is designed for use in an indoor environment. The RU consists of a sealed enclosure that is designed for use in an outdoor environment. Control and monitoring functions are provided by the Digivance Element Management System (EMS).
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW
HOST UNIT 1
ENHANCED
BASE
TRANSCEIVER
STATION 1
RF
REMOTE
UNIT 1
ENHANCED
BASE
TRANSCEIVER
STATION 2
ENHANCED
BASE
TRANSCEIVER
STATION 3
NETWORK
OPERATIONS
CENTER
(REMOTE
INTERFACE)
T1, DS0
WITH RS232
CONVERSION,
OR OTHER
MEDIUM
RF
RS-232
ASCII
HOST UNIT 2
RF
HOST UNIT 3
CONTROLLER
AREA
NETWORK
CONTROLLER
AREA
NETWORK
RS-232
RS-232
REMOTE
UNIT 2
REMOTE
UNIT 3
PC COMPUTER WITH EMS
(TEMPORARY CONNECTION)
NETWORK SNMP
MANAGER
Page 1-2
© 2006, ADC Telecommunications, Inc.
ETHERNET
LAN
PC COMPUTER WITH EMS
AND SNMP PROXY AGENT
(PERMANENT CONNECTION)
Figure 1-1. SCS System Overview Diagram
CD-ROM WITH SNMP PROXY
AGENT SOFTWARE (OPTIONAL)
CD-ROM WITH EMS
SOFTWARE
20564-B

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 spectrum and then converts it 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
REVERSE
PATHS
ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW
HOST UNIT

2.3 Subscriber Unit Interface

The RU interfaces with the subscriber units (cell phones) through an antenna. In the reverse path, the RU receives RF spectrum from each subscriber unit (see Figure 1-1). The RU digitizes the RF spectrum and then converts it 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 spectrum for transmission to the subscriber units. The RU is connected to an antenna (not provided) which transmits and receives the subscriber unit RF spectrum.

2.4 Local Management Interface

Communications with an individual Digivance system is supported through a local management interface capability as shown in Figure 1-3. A local management 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 connects directly to the HU 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 the HU for connecting the EMS computer.
20856-A
Figure 1-2. EBTS/HU Interface
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW
HOST UNIT
RS-232
REMOTE
UNIT
CD-ROM WITH DIGIVANCE
ELEMENT MANAGEMENT
SYSTEM (EMS) SOFTWARE
LAPTOP WITH EMS
(LOCAL INTERFACE)
20565-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
NOTE: THE SUM MAXIMUM LENGTH FOR THE CAN BUS CABLES IS 75 FEET
REMOTE
UNIT
PC COMPUTER WITH EMS (LOCAL INTERFACE WITH
MULTIPLE SYSTEMS)
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© 2006, ADC Telecommunications, Inc.
CAN
HOST UNIT
REMOTE
UNIT
RS-232
NOTE: THE MAXIMUM LENGTH FOR THE RS-232 CABLE IS 75 FEET
CD-ROM WITH DIGIVANCE
ELEMENT MANAGEMENT
SYSTEM (EMS) SOFTWARE
Figure 1-4. Local Management of Networked Digivance Systems
20857-A

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.
ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW
NETWORK
OPERATIONS
CENTER
(REMOTE
INTERFACE)
T1, DS0
WITH RS232
CONVERSION,
OR OTHER
MEDIUM
RS-232
ASCII
HOST UNIT
HOST UNIT
HOST UNIT
CAN
CAN
RS-232
CD-ROM WITH EMS
SOFTWARE
PC COMPUTER WITH
EMS SOFTWARE
REMOTE
UNIT
REMOTE
UNIT
REMOTE
UNIT
20858-A
Figure 1-5. Remote Management of Networked Digivance Systems Through NOC Interface
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • 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) monitoring (Get) and trap 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.
NETWORK
SNMP
MANAGER
ETHERNET
LOCAL
AREA
NETWORK
HOST UNIT
CAN
HOST UNIT
CAN
HOST UNIT
RS-232
REMOTE
UNIT
REMOTE
UNIT
REMOTE
UNIT
CD-ROM WITH EMS
SOFTWARE
Figure 1-6. Remote Management of Networked Digivance Systems Through SNMP Manager
Page 1-6
© 2006, ADC Telecommunications, Inc.
ETHERNET
PC COMPUTER WITH EMS
AND SNMP PROXY AGENT
CD-ROM WITH SNMP
PROXY AGENT SOFTWARE
20859-A

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 LRCS 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 LRCS system is shown in Figure 1-7.
HOST UNIT
ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW
FIBER OPTIC
LINK
FORWARD PATH
REVERSE PATH
REMOTE
UNIT
18526-A
Figure 1-7. LRCS System Fiber Optic Transport - Typical
The maximum length of the optical links is dependent on the loss specifications of the optical fiber, the losses imposed by the various connectors and splices, and the RF modulation protocol response timing limitations. The basic system provides an optical budget of 25 dB (typical) when used with 9/125 single-mode fiber.
In SCS applications, the forward path and reverse path optical signals from an HU/RU pair are combined onto a single optical fiber. This is 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. A WDM module (accessory) is installed with the HU at the host site The SCS RU, which is equipped with an internally mounted WDM, is installed at the remote site as shown in Figure 1-8.
FIBER OPTIC LINK
HOST UNIT
WDM
FORWARD AND REVERSE PATH
WDM
REMOTE
UNIT
20721-A
Figure 1-8. SCS System Fiber Optic Transport with Wavelength Division Multiplexer
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • 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 CD­ROM’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 underside of the RU 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 DC 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 90 to 265 VAC (nominal 120 or 240 VAC), 47 to 63 Hz power. On an optional basis, the RU may be powered by 60 to 89 VAC, 47 to 63 Hz power. A connector is provided on the underside of the RU for the AC power connections. A 3-wire AC power cable rated for outdoor use is included with the RU. The stub end of the cable must be hard-wired to the AC power source.

3.5 Equipment Mounting and Location

The HU consists of a rack-mountable chassis assembly that is designed for mounting in a non­condensing indoor environment such as inside a wiring closet or within an environmentally-
controlled cabinet. The HU is usually installed within 20 feet of the EBTS and may be mounted in either a 19- or 23-inch, WECO or EIA, equipment rack.
The RU consists of a sealed aluminum enclosure designed for mounting in either an indoor or outdoor environment. The RU may be mounted from a pole or the exterior side of a building with the standard mounting bracket or from a strand with an accessory bracket.
Page 1-8
© 2006, ADC Telecommunications, Inc.

4 DUAL-BAND REMOTE UNIT SCS SYSTEMS

Sections 1 through 3 described the functions and features of a typical SCS system equipped with one HU and the single-band RU. Each single-band RU is equipped with the electronics to support one frequency band. If it is necessary to support two frequency bands (such as 800/900 MHz SMR and 1900 MHz) at the same remote location, a dual-band RU can be deployed. A dual-band RU provides the electronic and optical functionality of two single-band RU’s except that all the electronic and optical components are housed within a single enclosure.
A dual-band SCS system consists of two standard host units and a dual-band RU that are linked together over two optical fibers. At the hub site, each HU is connected to a separate EBTS facility. The dual-band RU supports the frequency bands (such as 800/900 MHz SMR and 1900 MHz) associated with the two connected HU’s. Each HU and the corresponding RU electronics function independently of each other and may be managed separately using the same element management system (EMS). Figure 1-9 shows a typical SCS system equipped with a dual-band RU. One fiber is used to transport the forward/reverse path optical signals for one SCS system. The other fiber is used to transport the forward/reverse path optical signals for the other SCS system.
ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW
© 2006, ADC Telecommunications, Inc.
Page 1-9
ADCP-75-187 • Issue 3 • September 2006 • Section 1: OVERVIEW
ENHANCED
BASE
TRANSCEIVER
STATION 1
ENHANCED
BASE
TRANSCEIVER
STATION 2
ENHANCED
BASE
TRANSCEIVER
STATION A
ENHANCED
BASE
TRANSCEIVER
STATION B
BASE STATION
ANTENNA
RF
RF
CONTROLLER
RF
HOST UNIT 1
HOST UNIT 2
AREA
NETWORK
WDM
WDM
BAND 1
800/900 MHZ SMR
WDM
DUAL-BAND
REMOTE UNIT
WDM
BAND A
800/900 MHZ SMR
BAND 2
1900 MHZ
UNIT 1
UNIT 2
BAND B
1900 MHZ
NETWORK
OPERATIONS
CENTER
T1, DS0
WITH RS232
CONVERSION,
OR OTHER
MEDIUM
NETWORK SNMP
MANAGER
Figure 1-9. SCS System With Dual-Band Remote Units Overview Diagram
RF
RS-232
ASCII
ETHERNET
LAN
PC COMPUTER WITH EMS
AND SNMP PROXY AGENT
(PERMANENT CONNECTION)
HOST UNIT A
HOST UNIT B
RS-232
WDM
WDM
RS-232
UNIT A
WDM
DUAL-BAND
REMOTE UNIT
UNIT B
WDM
PC COMPUTER WITH EMS
(TEMPORARY CONNECTION)
CD-ROM WITH SNMP PROXY
AGENT SOFTWARE
CD-ROM WITH EMS
SOFTWARE
20628-A
Page 1-10
© 2006, ADC Telecommunications, Inc.

SECTION 2: DESCRIPTION

Content Page
1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2 HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.4 RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.9 Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.10 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.11 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
2.12 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
3 REMOTE UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
3.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
3.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
3.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
3.4 Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.5 RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.6 Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.7 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
3.8 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
3.9 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
3.10 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
4 ACCESSORY ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
4.1 Strand Mount Kit for RU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
4.2 Lightning Protector for RU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.3 Solar Shields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
5 DIGIVANCE ELEMENT MANAGEMENT SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
5.1 Digivance EMS Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
5.2 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
5.3 Computer Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
5.4 Digivance EMS Computer Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
5.5 Digivance Software User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
6 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
_________________________________________________________________________________________________________
ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

1 INTRODUCTION

This section describes the basic components of a typical Digivance SCS system including the Host Unit (HU), Remote Unit (RU), element management system, and accessories. The system specifications are provided in a table at the end of this section.

2 HOST UNIT

Two versions of the HU are available. The rear access HU, shown in Figure 2-1, is used with 800/900 MHz SMR systems. The front access HU, also shown in Figure 2-1, is used with 800 and 1900 MHz systems. Connection points for the RF, optical, and alarm cables are provided on the rear side of the rear access HU and on the front side of the front access HU. Both HU versions provide the following basic functions:
• Provides a limited 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 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 front access HU is also equipped with a front cable management tray and vertical cable guides.

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 the rear access HU is installed, the front panel of the HU is flush with the front of the rack. When the front access HU is installed, the front panel of the HU is flush with the front of the rack and the cable management tray extends 3.9 inches (99 mm) beyond the front panel. Screws are provided for securing the HU to the equipment rack.
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© 2006, ADC Telecommunications, Inc.
3.5 INCHES (88 mm)
12.2 INCHES (311 mm)
ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION
17.1 INCHES (433 mm)
REAR ACCESS HOST UNIT
FRONT PANEL
MOUNTING
BRACKET
(BOTH SIDES)
3.5 INCHES (89 mm)
11.4 INCHES (290 mm)
15.3 INCHES (389 mm)
Figure 2-1. Front View of Front and Rear Access Host Units

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.
17.2 INCHES (437 mm)
FRONT ACCESS HOST UNIT
FRONT PANEL
CABLE MANAGEMENT
TRAY
MOUNTING
BRACKET
(BOTH SIDES)
20666-A
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.
© 2006, ADC Telecommunications, Inc.
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ADCP-75-187 • Issue 3 • September 2006 • Section 2: DESCRIPTION

2.4 RF Signal Connections

The RF signal connections between the rear access HU and the EBTS are supported through four N-type female connectors. Two connectors are used for the forward path RF signals and two connectors are used for the reverse path RF signals.
The RF signal connections between the front access HU and the EBTS are supported through two N-type female connectors. One connector is used for the forward path RF signal and the other connector is used for the reverse path RF signal.
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.

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 input RF signal(s) 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 for 800/900 MHz SMR systems is –20 dBm.
The host reverse path attenuators adjust the level of the output RF signal(s) 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 RF output signal(s) 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 are supported through two optical ports equipped with UPC/SC (flat) connectors. One port is used for the forward path optical signal connection and the other port is used for the reverse path optical signal connection.
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© 2006, ADC Telecommunications, Inc.
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