ADC Telecommunications DLCSMR3D Digivance LRCS SMR Dual Band System User Manual 75179

ADC Telecommunications Inc Digivance LRCS SMR Dual Band System 75179

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manual1

PreliminaryADCP-75-179Preliminary Issue ASeptember 20041304947 Rev 1(Digivance® LRCS 800/900 MHz SMR System with Version 3.01 EMS Software(Operation and Maintenance Manual20025-A
ADCP-75-179Preliminary Issue ASeptember 20041304947 Rev 1Digivance® LRCS 800/900 MHz SMR System with Version 3.01 EMS SoftwareOperation and Maintenance Manual
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage iiCOPYRIGHT© 2004, ADC Telecommunications, Inc.All Rights ReservedPrinted in the U.S.A.REVISION HISTORYLIST OF CHANGESThe technical changes incorporated into this issue are listed below.TRADEMARK INFORMATIONADC and Digivance are registered trademarks of ADC Telecommunications, Inc.Stargazer is a registered trademark of ADC DSL Systems, Inc.Procomm Plus is a registered trademark of Quarterdeck Corporation. Acrobat and Adobe are registered trademarks of Adobe Systems, Inc.DISCLAIMER OF LIABILITYContents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In noevent shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC furtherdisclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer ofliability 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.comISSUE DATE REASON FOR CHANGEA 09/2004 Original issue.PAGE IDENTIFIER DESCRIPTION OF CHANGE All Original issue.ADC Telecommunications, Inc.P.O. Box 1101, Minneapolis, Minnesota 55440-1101In U.S.A. and Canada: 1-800-366-3891Outside U.S.A. and Canada: (952) 938-8080Fax: (952) 917-1717
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage iii© 2004, ADC Telecommunications, Inc.TABLE OF CONTENTSContent PageABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiRELATED PUBLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiADMONISHMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viiiGENERAL SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viiiSTANDARDS CERTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ixLIST OF ACRONYMS AND ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ixSECTION 1:OVERVIEW1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12 LRCS SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12.1 Basic System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12.2 Enhanced Base Transceiver Station Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32.3 Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32.4 Local Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32.5 Network Operations Center Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-52.6 SNMP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-63 SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-73.1 Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-73.2 Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-93.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-93.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-93.5 Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9SECTION 2:DESCRIPTION1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32 HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42.4 RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42.5 RF Signal Level Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.6 Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.7 Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.8 Controller Area Network Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.9 Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.10 Auxiliary Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.11 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-62.12 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage iv© 2004, ADC Telecommunications, Inc.TABLE OF CONTENTSContent Page2.13 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63 SPECTRUM TRANSPORT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-93.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-93.4 Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.5 RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.6 Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.7 Service Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.8 Auxiliary Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.9 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.10 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-113.11 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-114 35 WATT LINEAR POWER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-134.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-134.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.5 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.6 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-145 REMOTE UNIT MOUNTING SHELF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-165.1 Indoor Mounting Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-166 SLIM-STYLE REMOTE UNIT CABINETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-176.1 Slim-Style Single-STM Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-186.2 Slim-Style Dual-STM Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-207 ACCESSORY ITEMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-237.1 Remote Unit Back-up Battery Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-237.2 Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-247.3 Coarse Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-258 DIGIVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-268.1 Digivance EMS Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-268.2 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-288.3 Computer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-288.4 Digivance EMS Computer Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-288.5 Digivance EMS User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-299 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31SECTION 3:OPERATION1 BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11.1 Tools and Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage v© 2004, ADC Telecommunications, Inc.TABLE OF CONTENTSContent Page1.2 Readiness Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22 TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22.1 Turn-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32.2 Check/Download HU and RU Control Program and FPGA Program Software . . . . . . . . . . . . . . . . . . . . . . . . .3-62.3 Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-82.4 Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102.5 Enter Host Forward Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-112.6 Determine Output Signal Level at STM Antenna Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132.7 Enter Remote Forward Attenuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132.8 Enter Host Reverse Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-152.9 Enter Host Forward and Reverse Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17SECTION 4:MAINTENANCE1 SYSTEM MAINTENANCE OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12 FAULT DETECTION AND ALARM REPORTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23 FAULT ISOLATION AND TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-63.1 Host Unit Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-73.2 STM Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-93.3 LPA Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-134 TEST PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-154.1 Optical Power Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-154.2 Optical Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-175 SCHEDULED MAINTENANCE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19SECTION 5:GENERAL INFORMATION1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12 SOFTWARE SERVICE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14 REPAIR CHARGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-25 REPLACEMENT/SPARE PRODUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26 RETURNED MATERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-27 CUSTOMER INFORMATION AND ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage vi© 2004, ADC Telecommunications, Inc.TABLE OF CONTENTSContent PageBlank
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage vii© 2004, ADC Telecommunications, Inc.ABOUT THIS MANUALThis installation and operation manual provides the following information:• An overview of the Digivance 800/900 MHz SMR Long-Range Coverage Solution(LRCS) system. • A complete description of the basic system components including the Host Unit (HU),Spectrum Transport Module (STM), Linear Power Amplifier (LPA), and DigivanceElement Management System (EMS). • A basic description of the slim-style Remote Unit (RU) cabinets and indoor mountingshelf.• Procedures for tuning-up the system and verifying that the system is functioning properly.• Procedures for maintaining the system including scheduled maintenance tasks and faultisolation and troubleshooting procedures. • Product warranty, repair, return, and replacement information. The procedures for installing the remote unit modules and enclosures and for installing andusing the EMS software are provided in other publications which are referenced in the RelatedPublications section and at appropriate points within this manual. RELATED PUBLICATIONSListed below are related manuals, their content, and their publication numbers. Copies of thesepublications 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).Digivance LRCS System 800/900 MHz SMR Rear Access Host Unit Installation and Maintenance Manual 75-180Provides instructions for mounting the rear access host unit in an equipmentrack, installing and connecting the various cables, and replacing the cooling fans. Digivance LRCS Dual-STM Systems Supplemental Manual 75-157Provides supplemental information for LRCS systems that utilize one of thedual-STM cabinets. Digivance Element Management System Version 3.01 User Manual 75-151Provides instructions for installing the Digivance Element Management System(EMS) software and for using both the Graphical User Interface (GUI) and theNetwork Operations Center (NOC) versions of the software. Digivance SNMP Agent Software User Manual 75-152Describes how to install, configure, and use the LRCS SNMP Proxy Agent. Title/Description ADCP Number
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage viii© 2004, ADC Telecommunications, Inc.ADMONISHMENTSImportant safety admonishments are used throughout this manual to warn of possible hazards topersons or equipment. An admonishment identifies a possible hazard and then explains whatmay 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 ofthe triangular alert icon (seen below), and are listed in descending order of severity of injury ordamage and likelihood of occurrence.GENERAL SAFETY PRECAUTIONSDanger: Danger is used to indicate the presence of a hazard that will cause severe personalinjury, 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 personalinjury, 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 minorpersonal injury or property damage if the hazard is not avoided.Danger: This equipment uses a Class 1 Laser according to FDA/CDRH rules. Laser radiationcan seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do notlook directly into the optical transceiver of any digital unit or exposure to laser radiation mayresult. An optical power meter should be used to verify active fibers. A protective cap or hoodMUST be immediately placed over any radiating transceiver or optical fiber connector to avoidthe potential of dangerous amounts of radiation exposure. This practice also prevents dirtparticles 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 installingor using electrically-powered equipment. To prevent electrical shock, never install or useelectrical equipment in a wet location or during a lightning storm. Warning: The HU is powered by 48 VDC power which is supplied over customer-providedwiring. 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 pigtailswithout severe bends. Fiber optic patch cords or pigtails may be permanently damaged if bentor curved to a radius of less than 2 inches (50 mm).
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage ix© 2004, ADC Telecommunications, Inc.STANDARDS CERTIFICATIONFCC: This equipment complies with the applicable sections of Title 47 CFR Part 90.Installation requirements the licensee needs to follow are listed in Title 47 CFR 90.635. Thisdocument may be found at the following website: http://www.access.gpo.gov/nara/cfr/waisidx_03/47cfr90_03.html. UL/CUL: This equipment complies with UL and CUL 50 Standard for Enclosures forElectrical Equipment. This equipment provides the degree of protection specified by IP43 asdefined in IEC Publication 529. FDA/CDRH: This equipment uses a Class 1 LASER according to FDA/CDRH Rules. Thisproduct 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 theradio certification number only signifies that Industry Canada Technical Specifications were met.LIST OF ACRONYMS AND ABBREVIATIONSThe acronyms and abbreviations used in this manual are detailed in the following list:AC Alternating CurrentASCII American Standard Code for Information InterchangeAtt AttenuationAWG American Wire GaugeBER Bit Error RateCCentigradeCAN Controller Area NetworkCDRH Center for Devices and Radiological HealthCD-ROM Compact Disk Read Only MemoryCOM CommonCOMM CommunicationConfig ConfigurationCWDM Coarse Wavelength Division MultiplexerCUL Canadian Underwriters LaboratoriesDC Direct CurrentDCE Data Communications EquipmentDTE Data Terminal EquipmentEBTS Enhanced Base Transceiver StationEIA Electronic Industries AssociationEMS Element Management SystemESD Electrostatic DischargeFFahrenheitFCC Federal Communications CommissionFDA Food and Drug Administration
ADCP-75-179 • Preliminary Issue A • September 2004 • PrefacePage x© 2004, ADC Telecommunications, Inc.FSO Free Space OpticsFwd ForwardGFCI Ground Fault Circuit InterrupterGUI Graphical User InterfaceHU Host UnitIC Industry CanadaIP Internet ProtocolLED Light Emitting DiodeLPA Linear Power AmplifierLRCS Long-Range Coverage SolutionMHz Mega HertzMIB Management Information BaseMPE Maximum Permissible ExposureMTBF Mean Time Between FailureNC Normally ClosedNEM Network Element ManagerNO Normally OpenNOC Network Operations CenterNPT National Pipe TaperedOSP Outside PlantPA Power AmplifierPC Personal ComputerPCS Personal Communications SystemPrg ProgramPwr PowerRev ReverseRF Radio FrequencyRIM Radio Interface ModuleRMA Return Material AuthorizationRU Remote UnitRX Receive or ReceiverSNMP Simple Network Management ProtocolSMR Specialized Mobile RadioSTM Spectrum Transport ModuleTX Transmit or TransmitterUL Underwriters LaboratoriesVAC Volts Alternating CurrentVDC Volts Direct CurrentVSWR Voltage Standing Wave RatioWECO Western Electric CompanyWDM Wavelength Division Multiplexer
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-1© 2004, ADC Telecommunications, Inc.SECTION 1: OVERVIEW1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12 LRCS SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12.1 Basic System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12.2 Enhanced Base Transceiver Station Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32.3 Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32.4 Local Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32.5 Network Operations Center Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-52.6 SNMP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-63 SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-73.1 Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-73.2 Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-93.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-93.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-93.5 Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9_________________________________________________________________________________________________________1 INTRODUCTIONThis section provides basic description, application, and configuration information about theDigivance Long-Range Coverage Solution (LRCS) system. Throughout this publication, allitems referenced as “accessory items” are not furnished with the basic product and must bepurchased separately. 2 LRCS SYSTEM OVERVIEWThe Digivance LRCS system is an RF signal transport system that provides long-range RFcoverage in areas where it is impractical to place an Enhanced Base Transceiver Station (EBTS)at the antenna site. High real estate costs and community restrictions on tower and equipmentlocations often make it difficult to install the EBTS at the same location as the antenna. TheDigivance LRCS system is designed to overcome equipment placement problems by allowingbase stations to be hubbed at a central location while placing antennas at remote locations withminimal real estate requirements. With the Digivance LRCS system, RF signals can betransported to remote locations to expand coverage into areas not receiving service or to extendcoverage into difficult to reach areas such as canyons, tunnels, or underground roadways. 2.1 Basic System ComponentsThe basic components of a typical Digivance LRCS system and their function are shown inFigure 1-1. A basic LRCS system consists of a Host Unit (HU) and a Remote Unit (RU). TheHU consists of a single-unit assembly that mounts in a standard equipment rack. The RUconsists of multiple electronic and optical modules that mount in either an outdoor cabinet or anindoor mounting shelf. Control and monitoring functions are provided by the DigivanceElement Management System (EMS). In addition, various accessory items including a back-upbattery for the RU, a passive Wavelength Division Multiplexer (WDM) system, and an activeCoarse Wavelength Division Multiplexer (CWDM) system are available as accessories.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-2© 2004, ADC Telecommunications, Inc.Figure 1-1. System Overview DiagramHOST UNIT 1HOST UNIT 2HOST UNIT 3NETWORKOPERATIONSCENTER(REMOTEINTERFACE)CONTROLLERAREANETWORK20007-ARFRFRFCONTROLLERAREANETWORKCWDMWDM REMOTEUNIT 1REMOTEUNIT 3WDMREMOTEUNIT 2CWDMCWDMCWDMBASE STATIONANTENNAPC COMPUTER WITH EMSAND SNMP PROXY AGENT(PERMANENT CONNECTION) RS-232ASCIIRS-232CD-ROM WITH EMSSOFTWARENETWORK SNMPMANAGERCD-ROM WITH SNMP PROXYAGENT SOFTWAREETHERNETLANPC COMPUTER WITH EMS(TEMPORARY CONNECTION)T1, DS0WITH RS232CONVERSION,OR OTHERMEDIUMRS-232RS-232ENHANSEDBASETRANSCEIVERSTATION 1ENHANSEDBASETRANSCEIVERSTATION 2ENHANSEDBASETRANSCEIVERSTATION 3
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-3© 2004, ADC Telecommunications, Inc.2.2 Enhanced Base Transceiver Station InterfaceThe HU is interfaced with an EBTS over coaxial cables as shown in Figure 1-2. The EBTSprovides the RF channel inputs and outputs for a designated sector. In the forward path, the HUreceives two RF inputs from the EBTS. The HU digitizes the RF signals and then converts themto digital optical signals for transport to the RU. In the reverse path, the HU receives digitaloptical signals from the RU. The HU converts the digital optical signals back to two RF outputswhich are supplied to the EBTS over the coaxial cable interface. Figure 1-2. EBTS/HU Interface2.3 Handset InterfaceThe RU interfaces with the handsets (cell phones) through an antenna. In the reverse path, theRU receives RF signals from each handset (see Figure 1-1). The RU digitizes the RF signals andthen converts them to digital optical signals for transport to the HU over the optical fiber link. Inthe forward path, the RU receives digital optical signals from the HU. The RU converts theoptical signals to RF signals for transmission to the handsets. The RU is connected to anantenna (not provided) which transmits and receives the handset RF signals. 2.4 Local InterfaceCommunications with an individual Digivance system is supported through a local interfacecapability as shown in Figure 1-3. A local interface requires a PC-type computer loaded withthe Digivance Element Management System (EMS) software. EMS provides the various controland monitoring functions required to locally manage a Digivance system. The EMS computercan be directly connected to either the HU or RU through the computer’s RS-232 port.Operation is implemented through the EMS Graphical User Interface (GUI). The GUI consistsof a series of screens from which the user selects the desired option or function. An RS-232service port is provided on both the HU and the RU for connecting the EMS computer. 20008-AHOST UNITRFENHANCEDBASETRANSCEIVERSTATIONFORWARDPATHSREVERSEPATHS
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-4© 2004, ADC Telecommunications, Inc.Figure 1-3. Local Management of a Single Digivance SystemAn EMS computer may be used to locally manage a networked group of multiple Digivancesystems as shown in Figure 1-4. A Controller Area Network (CAN) port is provided on eachHU. Up to twenty-four HU’s may be linked together through the CAN interface and controlledby the same EMS computer. All the networked HU’s and the associated RU’s may be managedby 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. Figure 1-4. Local Management of Networked Digivance SystemsHOST UNITLAPTOP WITH EMS(LOCAL INTERFACE)LAPTOP WITH EMS(LOCAL INTERFACE)18524-ACD-ROM WITH DIGIVANCEELEMENT MANAGEMENTSYSTEM (EMS) SOFTWAREREMOTEUNITRS-232RS-232PC COMPUTER WITH EMS(LOCAL INTERFACE WITHMULTIPLE SYSTEMS)HOST UNITHOST UNITHOST UNITRS-23220009-ACD-ROM WITH DIGIVANCE ELEMENT MANAGEMENTSYSTEM (EMS) SOFTWARECANCANREMOTEUNITREMOTEUNITREMOTEUNIT
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-5© 2004, ADC Telecommunications, Inc.2.5 Network Operations Center InterfaceCommunications between a Network Operations Center (NOC) and a networked group ofmultiple 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 ElementManagement System (EMS) software is required. EMS provides the various control andmonitoring functions required to remotely manage multiple Digivance systems through theNOC interface. A Controller Area Network (CAN) port is provided on each HU. Up to twenty-four HU’s maybe linked together through the CAN interface and controlled by the same EMS computer. Allthe networked HU’s and the associated RU’s may be managed by connecting the EMS computerto one HU. The EMS computer provides an RS-232 port (#1) to support the interface with thenetworked HU’s. The NOC can be linked to the EMS computer through a T1 system, DS0 with RS232conversion, or some other medium. The EMS computer provides an RS-232 ASCII interfaceport (#2) to support the interface with the NOC.At the NOC, control and monitoring of the networked Digivance systems is implementedthrough 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. Allcommunications are input as either SET or GET commands which result in ASCII text stringresponses from the specified system or systems. Figure 1-5. Remote Management of Networked Digivance Systems Through NOC InterfacePC COMPUTER WITHEMS SOFTWAREHOST UNITHOST UNITHOST UNITRS-23220010-ACD-ROM WITH EMSSOFTWARECANCANNETWORKOPERATIONSCENTER(REMOTEINTERFACE)RS-232ASCIIT1, DS0WITH RS232CONVERSION,OR OTHERMEDIUMREMOTEUNITREMOTEUNITREMOTEUNIT
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-6© 2004, ADC Telecommunications, Inc.2.6 SNMP InterfaceCommunications between an external Simple Network Management Protocol (SNMP) Managerand a networked group of multiple Digivance systems is supported by an SNMP interfacecapability as shown in Figure 1-6. To support the SNMP interface, a PC-type computer loadedwith both the Digivance Element Management System (EMS) software and the SNMP ProxyAgent software is required. The EMS and SNMP Proxy Agent software plus the associatedManagement Information Base (MIB) provide the various control (Set) and monitoring (Get)functions required to remotely manage multiple Digivance systems using an SNMP Manager. A Controller Area Network (CAN) port is provided on each HU. Up to twenty-four HU’s maybe linked together through the CAN interface and controlled by the same EMS computer. Allthe networked HU’s and the associated RU’s may be managed by connecting the EMS computerto one HU. The EMS computer provides an RS-232 port (#1) to support the interface with thenetworked 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 theSNMP Proxy Agent. The SNMP Manager is not included with the EMS software and must beprovided separately. Figure 1-6. Remote Management of Networked Digivance Systems Through SNMP ManagerPC COMPUTER WITH EMSAND SNMP PROXY AGENTHOST UNITHOST UNITHOST UNITRS-23220011-ACD-ROM WITH EMSSOFTWARECD-ROM WITH SNMPPROXY AGENT SOFTWARECANCANLOCALAREANETWORKETHERNETNETWORKSNMPMANAGERETHERNETREMOTEUNITREMOTEUNITREMOTEUNIT
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-7© 2004, ADC Telecommunications, Inc.3 SYSTEM FUNCTIONS AND FEATURESThis section describes various system level functions and features of the Digivance system. 3.1 Fiber Optic TransportIn a typical Digivance system, the HU is connected to the RU over two single-mode opticalfibers. One fiber is used to transport the forward path optical signal. The other fiber is used totransport the reverse path optical signal. Because the optical signal is digital, the input andoutput RF signal levels at the HU or the RU are not dependent on the level of the optical signalor the length of the optical fiber. A diagram of the fiber optic transport system for a typicalDigivance system is shown in Figure 1-7. Figure 1-7. Standard Fiber Optic Transport ApplicationThe maximum length of the optical links is dependent on the loss specifications of the opticalfiber and the losses imposed by the various connectors and splices. The system provides anoptical budget of 25 dB (typical) when used with 9/125 single-mode fiber. In some applications, it may be desirable or necessary to combine the forward path and reversepath optical signals from a single HU/RU pair onto a single optical fiber. This can beaccomplished 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 pathand 1310 nm for the reverse path. Because different wavelengths are used for the forward andreverse paths, both signals can be combined on a single optical fiber. One WDM module ismounted with the HU and the other WDM module is mounted with the RU as shown inFigure 1-8. The WDM system is available as an accessory item. Figure 1-8. Wavelength Division Multiplexer ApplicationHOST UNIT18526-AREMOTEUNITFORWARD PATHREVERSE PATHFIBER OPTICLINKHOST UNIT18527-AREMOTEUNITFIBER OPTICLINKWDM WDMFORWARD ANDREVERSE PATH
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-8© 2004, ADC Telecommunications, Inc.In some applications, it may be desirable or necessary to combine the forward and reverse pathoptical signals from multiple HU’s and RU’s onto a single optical fiber. This can beaccomplished by using an active Coarse Wavelength Division Multiplexer (CWDM) system. Upto four Digivance systems may be configured to operate over a single optical fiber. A CWDMmodule is mounted with each HU and RU. An example of a typical CWDM application isshown in Figure 1-9. Figure 1-9. Coarse Wavelength Division Multiplexer ApplicationA Free Space Optics (FSO) system (that meets the Digivance LRCS data rate performance andBER requirements) may be used in applications where it is desirable or necessary to bridge anopen span and where it is impractical to lay a fiber optic cable. One FSO transceiver unit may bemounted on the HU side of the open span and the other FSO transceiver unit may be mountedon the RU side of the open span. A system diagram of an FSO application is shown inFigure 1-10. FSO systems are available from various equipment manufacturers. Figure 1-10. Free Space Optics Application18528-AFIBER OPTICLINKHOST UNIT 1REMOTEUNIT 1CWDMACWDMAHOST UNIT 2REMOTEUNIT 2CWDMBCWDMBHOST UNIT 3REMOTEUNIT 3CWDMCCWDMCHOST UNIT 4REMOTEUNIT 4CWDMDCWDMDFORWARD ANDREVERSE PATHHOST UNIT18530-AREMOTEUNITFORWARD PATHFSOTX/RXFSOTX/RXFREE SPACE OPTICS LINKREVERSE PATHFORWARD PATHREVERSE PATH
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-9© 2004, ADC Telecommunications, Inc.3.2 Control and Monitoring SoftwareThe EMS software and the SNMP Proxy Agent software provide control and monitoringfunctions for the Digivance system through the local, NOC, and SNMP interfaces. The EMSand SNMP Proxy Agent software are stored on CD-ROM’s which are shipped in a separatepackage along with the software user manuals. The EMS software package is available withoutthe SNMP Proxy Agent if the SNMP interface capability not required for the application.Software installation consists of copying the software files from the CD-ROM’s to a designateddirectory on the hard-drive of the EMS computer. The EMS software provides the capability to provision and configure the Digivance system foroperation. This includes selecting a site name, setting alarm thresholds, and setting forward andreverse path RF gain adjustments. The EMS software also provides the capability to get alarmmessages (individual or summary), obtain data measurements, and to upgrade the HU/RUsystem software. All control and monitor functions (except software upgrade which is notsupported by the NOC/NEM and SNMP interfaces and HU/RU pair site number assignmentwhich is not supported by the SNMP interface) may be implemented using the NOC/NEMinterface, the SNMP interface, or the EMS software GUI. 3.3 Fault Detection and Alarm ReportingLED indicators are provided on the front panel of the HU and on the front panels of the RUmodules to indicate if the system is normal or if a fault is detected. In addition, normally openand normally closed alarm contacts (for both major and minor alarms) are provided at the HUfor connection to a customer-provided external alarm system. All alarms can also be accessedthrough the NOC/NEM interface, SNMP manager, or the EMS software GUI. 3.4 PoweringThe HU is powered by ±24 or ±48 VDC and must be hard-wired to a local office battery powersource through a fuse panel. A screw-down terminal strip is provided on the rear side of the HUfor the power connections. The RU is powered by 120 or 240 VAC power (50 or 60 Hz) and must be connected to a 20 AmpAC power source. If the RU modules are installed in an outdoor cabinet, the AC wiring is placedin conduit and permanently connected to the internal cabinet wiring. If the RU modules areinstalled in an indoor mounting shelf, a standard three-conductor AC power cord is provided forconnection to a standard AC power outlet. A back-up battery system is available for specifiedoutdoor cabinets as an accessory. The battery-backup system powers the RU if the AC powersource is disconnected or fails. 3.5 Equipment Mounting and ConfigurationThe HU is a single-unit assembly that is designed for mounting in a non-condensing indoorenvironment such as inside a wiring closet or within an environmentally-controlled cabinet. TheHU is intended for rack-mount applications and may installed (usually within 20 feet of theEBTS) in either a 19- or 23-inch, WECO or EIA, equipment rack.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: OverviewPage 1-10© 2004, ADC Telecommunications, Inc.The RU is designed for mounting in either an indoor or outdoor environment. The RU consistsof a Spectrum Transport Module (STM), a Linear Power Amplifier (LPA) module, WDMremote module (accessory), CWDM remote module (accessory), and either an outdoor cabinetor a indoor mounting shelf.Several types of outdoor cabinets are available. Each outdoor cabinet is weather-tight butcontact with salt-air mist should be avoided as it may degrade the MTBF of the product. Out-door cabinets can be mounted from a flat-vertical surface or a utility pole (requires pole-mountkit). Slots are provided within each cabinet for mounting the STM and LPA modules and alsothe WDM or CWDM remote modules. Storage spools are provided within the cabinet forstoring short lengths of excess fiber slack. Specified cabinets include a tray with a heated basefor mounting a back-up battery (accessory item). A indoor mounting shelf for indoor use is also available. The indoor mounting shelf is designedfor installation in a non-condensing indoor environment such as inside a wiring closet or withinan environmentally-controlled cabinet. The indoor mounting shelf installs in a standard EIA orWECO, 19- or 23-inch, equipment rack. Slots are provided within the mounting shelf formounting the STM and LPA modules and also the WDM or CWDM remote modules.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-1© 2004, ADC Telecommunications, Inc.SECTION 2: DESCRIPTION 1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32 HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42.4 RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42.5 RF Signal Level Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.6 Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.7 Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.8 Controller Area Network Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.9 Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.10 Auxiliary Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52.11 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-62.12 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-62.13 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-63 SPECTRUM TRANSPORT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-83.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-93.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-93.4 Antenna Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.5 RF Signal Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.6 Optical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.7 Service Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.8 Auxiliary Interface Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.9 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103.10 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-113.11 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-114 35 WATT LINEAR POWER AMPLIFIER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-134.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-134.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.3 Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.4 Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.5 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144.6 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-145 REMOTE UNIT MOUNTING SHELF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-165.1 Indoor Mounting Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-166 SLIM-STYLE REMOTE UNIT CABINETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-176.1 Slim-Style Single-STM Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-186.2 Slim-Style Dual-STM Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-207 ACCESSORY ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-237.1 Remote Unit Back-up Battery Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-237.2 Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24Content Page
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-2© 2004, ADC Telecommunications, Inc.7.3 Coarse Wavelength Division Multiplexer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-258 DIGIVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-268.1 Digivance EMS Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-268.2 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-288.3 Computer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-288.4 Digivance EMS Computer Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-288.5 Digivance EMS User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-299 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31_________________________________________________________________________________________________________
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-3© 2004, ADC Telecommunications, Inc.1 INTRODUCTIONThis section describes the basic components of a typical Digivance 800/900 MHz SMR LRCSsystem including the Host Unit (HU) and Remote Unit (RU). The HU consists of a single rack-mount chassis. The RU consists of a Spectrum Transport Module (STM); a 35 Watt LinearPower Amplifier (LPA) module; and either an outdoor cabinet or an indoor mounting shelf.Also described in this section are various accessory items that may be used with the HU and RUincluding the Wavelength Division Multiplexer (WDM) system, Coarse Wavelength DivisionMultiplexer (CWDM) system, and RU back-up battery kit. 2 HOST UNITThe HU, shown in Figure 2-1, provides the following basic functions: • Provides an adjustable RF interface with the BTS. • Provides a fiber optic interface with the RU. • Digitizes the two forward path composite RF signals. • Converts the two digitized forward path RF signals to a digital optical signal. • Converts the digitized reverse path optical signal to two digitized RF signals. • Converts the two digitized reverse path RF signals to two composite RF signals. • Sends alarm information to an external alarm system through relay contact closures• Provides an RS-232 interface for connecting the EMS computer. • Provides an RS-232 interface for an auxiliary communications link with remote equipment.• Provides a CAN interface for networking multiple HUs. 2.1 Primary ComponentsThe HU consists of an electronic circuit board assembly and a fan assembly that are mountedwithin a powder-paint coated sheet metal enclosure. The enclosure provides a mounting pointfor the circuit board and fan assemblies and controls RF emissions. The only user-replaceablecomponent is the fan assembly. The HU is designed for use within a non-condensing indoorenvironment such as inside a wiring closet or cabinet. The RF connectors, optical connectors,alarm output connectors, DC power terminal strip, and grounding lug are mounted on the HUrear panel. The On/Off power switch, LED indicators, service interface connector, andController Area Network (CAN) connectors are mounted on the HU front panel. 2.2 MountingThe HU is intended for rack-mount applications. A pair of reversible mounting brackets isprovided that allow the HU to be mounted in either a 19-inch or 23-inch EIA or WECOequipment rack. When installed, the front panel of the HU is flush with the front of the rack.Screws are provided for securing the HU to the equipment rack.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-4© 2004, ADC Telecommunications, Inc.Figure 2-1. Host Unit2.3 Fault Detection and Alarm ReportingThe HU detects and reports various internal and external faults including host unit fault, opticalfault, 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 alarmsystem when a fault is detected. Both major alarm (system operation seriously affected) andminor alarm (system operation not affected or only slightly degraded) contacts are provided. Fault and alarm information may also be accessed locally through the EMS software GUI orremotely through the NOC/NEM interface or SNMP interface. An alarm history file ismaintained by the EMS software so that a record is kept of all alarms as they occur. This isuseful 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 issummarized and reported over the service interface, the CAN interface, and the optical interfaceto the RU. In addition, the status of the RU is transmitted to the HU over the optical interfaceand reported over the service interface and the CAN interface. 2.4 RF Signal ConnectionsThe RF signal connections between the HU and the EBTS are supported through four N-typefemale connectors. Two connectors are used for the forward path RF signals. The other twoconnectors are used for the reverse path RF signals. In most installations, it is usually necessaryto install external attenuators to support the RF interface between the HU and the EBTS. TheHU should be as close as possible to the EBTS to minimize coaxial cable losses. 17.1 INCHES(433 mm)3.5 INCHES(88 mm)12.2 INCHES(311 mm)FRONT PANELMOUNTINGBRACKET(BOTH SIDES)20020-A
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-5© 2004, ADC Telecommunications, Inc.2.5 RF Signal Level AdjustmentsThe HU is equipped with several attenuators for adjusting the signal levels of the forward andreverse path RF signals. The attenuators provide an attenuation adjustment range of 0 to 31 dBand can be set in 1 dB increments. The attenuators are software controlled and are adjustedthrough the EMS software GUI, NOC/NEM interface, or SNMP interface. The host forward path attenuators adjust the level of the two input RF signals to the HU.Using the forward path attenuator, an input signal with a nominal composite signal level of –12dBm to –43 dBm can be adjusted to produce maximum power output. Additional externalattenuation is required if the input signal level is greater than –12 dBm. The host reverse path attenuators adjust the level of the two output RF signals from the HUand will add from –1 dB of gain (attenuator set to 31 dB) to +30 dB of gain (attenuator set to 0dB) to the two RF output signals at the HU. 2.6 Propagation DelayThe HU forward and reverse path propagation delays may be adjusted in 0.1 µsec incrementswithin a range of 0 to 63 µs. The propagation delay is software controlled and may be adjustedthrough the EMS software GUI, NOC/NEM interface, or SNMP interface. 2.7 Optical ConnectionOptical connections between the HU and the RU (STM) are supported through two SC-typeoptical connector ports. One port is used for the forward path optical signal connection and theother port is used for the reverse path optical signal connection. 2.8 Controller Area Network Interface ConnectionController Area Network (CAN) interface connections between multiple HUs are supported bya pair of RJ-45 jacks. One of the jacks is designated as the network IN port and the other jack isdesignated as the network OUT port. The CAN interface allows up to 24 HUs to be connectedtogether (in daisy-chain fashion) and controlled through a single EMS computer. 2.9 Service Interface ConnectionThe service interface connection between the HU and the EMS computer is supported by asingle DB-9 female connector. The service connector provides an RS-232 DTE interface. Whenmultiple HUs are networked together, the supporting EMS computer may be connected to theservice connector of any one of the networked HUs. 2.10 Auxiliary Interface ConnectorAn auxiliary communication link is provided between the HU and the STM for customer use.The auxiliary interface is supported by a single DB-9 female connector. The auxiliary connectorprovides an RS-232 DTE interface. The auxiliary communications link can be used to remotelymonitor and control other network equipment that may be located at the remote unit site such asthe antenna.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-6© 2004, ADC Telecommunications, Inc.2.11 PoweringThe HU is powered by ± 21 to ± 60 VDC power (nominal ± 24 or ± 48 VDC). The power is fed tothe HU through a screw-down type terminal strip located on the rear side of the unit. Power tothe HU must be supplied through a fuse panel such as the PowerWorx GMT Series Fuse Panel(available separately). The power circuit for each HU must be protected with a 3 Amp GMTfuse. An On/Off switch is provided on the HU front panel. 2.12 CoolingContinuous airflow for cooling is provided by dual fans mounted on the right side of the HUhousing. A minimum of 3 inches (76 mm) of clearance space must be provided on both the leftand right sides of the HU for air intake and exhaust. An alarm is generated if a high temperaturecondition (>50º C/122º F) occurs. The fans may be field-replaced if either fan fails. 2.13 User InterfaceThe HU user interface consists of the various connectors, switches, terminals, and LEDs that areprovided on the HU front and rear panels. The HU user interface points are indicated inFigure 2-2 and described in Table 2-1. Figure 2-2. Typical Host Unit User Interface(1) DC POWER ON/OFF SWITCH(21)REV(20)FWD(REFERENCEITEMS 2 - 8)LED INDICATORS(9) SERVICEINTERFACECONNECTOR(11) NET INCONNECTOR(10) AUXILIARYCONNECTOR(12) NET OUTCONNECTOR(19) ALARMOUTPUT CONNECTOR(13) 806-824REVERSE(15) 851-869FORWARD(16) 935-940FORWARD(14) 896-901REVERSE20021-A(17) DC POWERTERMINAL STRIPREAR VIEWFRONT VIEW(18) COVER PLATE(22)GROUNDINGSTUD
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-7© 2004, ADC Telecommunications, Inc.Table 2-1. Host Unit User InterfaceREF NOUSER INTERFACE DESIGNATION DEVICE FUNCTIONALDESCRIPTION1I/0 On/Off rocker switch Provides DC power on/off control. 2 POWER Multi-colored LED(green/yellow)Indicates if the HU is powered (green) or unpow-ered (off). See Note.3 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. 4 HOST UNIT Multi-colored LED(green/yellow/red)Indicates if the HU is normal (green), overheated (yellow), or faulty (red). See Note. 5 REMOTE UNIT Multi-colored LED(green/yellow/red)Indicates if no alarms (green), a minor alarm (yellow), or a major alarm (red) is reported by the RU. See Note.6 DRIVE 851–869 Multi-colored LED(green/yellow/red)Indicates if the level of the 851–869 MHz RF input signal to the HU is normal (green), low (yellow), or high (red). See Note. 7FWD/REV(PORT 1/PORT 2)Multi-colored LED(green/red)Indicates if the reverse/forward path optical sig-nals from the STM/HU are normal (green), if no signals are detected (red), or if excessive errors are detected (red). See Note.8 DRIVE 935–940 Multi-colored LED(green/yellow/red)Indicates if the level of the 935–940 MHz RF input signal to the HU is normal (green), low (yellow), or high (red). See Note. 9 SERVICE DB-9 connector (female) Connection point for the RS-232 service inter-face cable. 10 AUXILIARY DB-9 connector (female) Connection point for the RS-232 auxiliary inter-face cable. 11 NET IN RJ-45 jack (female) Connection point for the CAN interface input cable.12 NET OUT RJ-45 jack (female) Connection point for the CAN interface output cable. 13 806–824 REVERSE N-type female RF coaxial connector Output connection point for the 806–824 MHz reverse path RF coaxial cable. 14 896–901 REVERSE N-type female RF coaxial connector Output connection point for the 896–901 MHz reverse path RF coaxial cable. 15 851–869 FORWARD N-type female RF coaxial connector Input connection point for the 851–869 MHz for-ward path RF coaxial cable. 16 935–940 FORWARD N-type female RF coaxial connector Input connection point for the 935–940 MHz for-ward path RF coaxial cable. 17 POWER 24–48 VDC Screw-type terminal strip Connection point for the DC power wiring. 18 No designation Cover plate Covers the mounting slot for the wavelength divi-sion multiplexer module.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-8© 2004, ADC Telecommunications, Inc.3 SPECTRUM TRANSPORT MODULEThe STM, shown in Figure 2-3, provides the following basic functions:• Provides an RF interface (antenna port) for the remote antenna(s). • Provides an optical interface for the HU. • Converts the digitized forward path optical signal to digitized RF signals. • Converts the digitized forward path RF signals to two composite RF signals. • Digitizes the two reverse path composite RF signals. • Converts the digitized reverse path RF signals to a digitized optical signal. • Provides an RS-232 interface for connecting a local EMS computer. • Provides an RS-232 interface for an auxiliary communications link with remote equipment.• Transports alarm, control, and monitoring information to the HU via the optical interface. • Accepts AC power input and battery power input.• Accepts external alarm input. 3.1 Primary ComponentsThe STM consists of an electronic circuit board assembly, power supply, quadraplexer, and fanassembly that are mounted within a powder-paint coated sheet metal enclosure. The metalenclosure provides a mounting point for the electronic components and controls RF emissions.Except for the fan unit, the electronic components are not user replaceable. The STM isdesigned for use within the RU outdoor cabinet or indoor mounting shelf. Except for the LPAinterface connector, all controls, connectors, indicators, and switches are mounted on the STMfront panel for easy access. A carrying handle is provided on the front of the STM to facilitateinstallation and transport. 19 ALARM OUTPUT Screw-type terminalconnector (14–26 AWG)Connection point for an external alarm system. Includes normally open (NO), normally closed (NC), and common (COM) wiring connections. 20 FWD (PORT 1) SC connector(single-mode) Output connection point for the forward path optical fiber.21 REV (PORT 2) SC connector(single-mode) Input connection point for the reverse path pri-mary optical fiber.22 Chassis ground stud Connection point for a chassis grounding wire. Note: A more detailed description of LED operation is provided in Section 4. Table 2-1. Host Unit User Interface, continuedREF NOUSER INTERFACE DESIGNATION DEVICE FUNCTIONALDESCRIPTION
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-9© 2004, ADC Telecommunications, Inc.3.2 MountingThe STM mounts within the RU outdoor cabinet or indoor mounting shelf. Runners on the topand bottom of the STM mesh with tracks in the cabinet or mounting shelf. The runners andtracks guide the STM into the installed position. The electrical interface between the STM andLPA is supported by a D-sub female connector located on the rear side of the STM. Acorresponding D-sub male connector mounted at the rear of the RU cabinet or indoor mountingshelf mates with the STM connector. Captive screws are provided for securing the STM in theinstalled position. Figure 2-3. Typical Spectrum Transport Module3.3 Fault Detection and Alarm ReportingThe STM detects and reports various faults including remote unit fault, optical fault, powerfault, temperature fault, power amplifier fault, and external (cabinet door open) fault. Variousfront panel Light Emitting Diode (LED) indicators turn from green to red or yellow if a fault isdetected. The status of the STM, the alarm state (major or minor), and other alarm informationis summarized and reported over the optical interface to the HU and also over the serviceinterface. In addition, the alarm state of the HU is received over the optical interface andreported to the service interface. Fault and alarm information may be accessed locally throughthe EMS software GUI or remotely through the NOC/NEM interface or SNMP interface. 20023-B
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-10© 2004, ADC Telecommunications, Inc.3.4 Antenna Cable ConnectionThe antenna cable connection between the STM and the antenna is supported through a singleN-type female connector. The single connector is used for the antenna cable which carries boththe forward and primary reverse path RF signals. 3.5 RF Signal Level AdjustmentThe STM is equipped with digital attenuators for adjusting the signal level of the forward pathRF output signals. The remote forward path attenuators adjust the level of the two output RFsignals at the RU antenna port and will add from 0 to 31 dB of attenuation to the output signallevel. The attenuator can be set in 1 dB increments. The attenuator is software controlled and isadjusted through the EMS software GUI, the NOC/NEM interface, or SNMP interface. 3.6 Optical ConnectionFiber optic connections between the STM and the HU are supported through two SC-typeoptical connector ports. One port is used for the forward path optical signal connection and theother port is used for the reverse path optical signal connection. 3.7 Service Interface ConnectionThe service interface connection between the STM and a local laptop computer loaded with theEMS software is supported by a single DB-9 female connector. The service interface connectorprovides an RS-232 DTE interface. The STM service interface supports local communicationswith both the STM and the corresponding HU. 3.8 Auxiliary Interface ConnectionAn auxiliary communication link is provided between the HU and the STM for customer use.The auxiliary interface is supported by a single DB-9 female connector. The auxiliary connectorprovides an RS-232 DTE interface. The auxiliary communications link can be used to remotelymonitor and control other network equipment that may be located at the remote unit site such asthe antenna. 3.9 PoweringThe STM is powered by 120 or 240 VAC (50 or 60 Hz) power which is supplied through athree-conductor AC power cord. The power cord is provided with the RU outdoor cabinet orindoor mounting shelf. The power cord connects to a 3-wire AC connector mounted on the frontpanel. A switch on the STM front panel provides AC power On/Off control. The STM (and the connected LPA) may be powered by a 24 VDC back-up battery systemwhich is available as an accessory kit. A connector is provided on the STM front panel for theback-up battery system wiring harness connection.
ADCP-75-179 • Preliminary Issue A • September 2004 • Section 2: DescriptionPage 2-11© 2004, ADC Telecommunications, Inc.3.10 CoolingContinuous air-flow for cooling is provided by a single fan mounted on the rear side of the STMhousing. An alarm is generated if a high temperature condition (>50º C/122º F) occurs. If thetemperature falls below 32º F (0º C), the fan automatically shuts off. The fan may be fieldreplaced if it fails. 3.11 User InterfaceThe STM user interface consists of the various connectors, switches, and LEDs that areprovided on the STM front panel. The STM user interface points are indicated in Figure 2-4 anddescribed in Table 2-2. Figure 2-4. Typical Spectrum Transport Module User Interface20022-B(3) ON/OFFSWITCH(4) AC POWERCONNECTOR(5) DC POWERCONNECTOR(1) FWDCONNECTOR(2) REVCONNECTOR(7) SERVICECONNECTOR(6) AUXILIARYCONNECTOR(8-14) LEDINDICATORS(15) ALARMCONNECTOR(16) ANTENNACONNECTOR

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