Nokia Solutions and Networks T6BM1 SC4812ET 1.9 GHz CDMA BTS User Manual IHET6BM1
Nokia Solutions and Networks SC4812ET 1.9 GHz CDMA BTS IHET6BM1
IHET6BM1 User Manual
SCt4812ET RF and Power Cabinet
Hardware Installation Manual
System Software Release 2.16.0
800/1700/1900 MHz
CDMA
English
Apr 2001
68P09253A94–1 DRAFT
English
Apr 2001
68P09253A94–1
SCt4812ET RF and Power Cabinet Hardware
Installation Manual
800/1700/1900 MHz
CDMA
SCt4812ET RF and Power Cabinet
Hardware Installation Manual
System Software Release 2.16.0
800/1700/1900 MHz
CDMA
English
Apr 2001
68P09253A94–1DRAFT
Notice
While reasonable efforts have been made to assure the accuracy of this document, Motorola, Inc. assumes no liability resulting from any
inaccuracies or omissions in this document, or from use of the information obtained herein. The information in this document has been
carefully checked and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies or omissions. Motorola,
Inc. reserves the right to make changes to any products described herein and reserves the right to revise this document and to make
changes from time to time in content hereof with no obligation to notify any person of revisions or changes. Motorola, Inc. does not
assume any liability arising out of the application or use of any product, software, or circuit described herein; neither does it convey
license under its patent rights or the rights of others.
It is possible that this publication may contain references to, or information about Motorola products (machines and programs),
programming, or services that are not announced in your country. Such references or information must not be construed to mean
that Motorola intends to announce such Motorola products, programming, or services in your country.
Copyrights
This instruction manual, and the Motorola products described in this instruction manual may be, include or describe copyrighted
Motorola material, such as computer programs stored in semiconductor memories or other media. Laws in the United States and
other countries preserve for Motorola certain exclusive rights for copyrighted material, including the exclusive right to copy,
reproduce in any form, distribute and make derivative works of the copyrighted material. Accordingly, any copyrighted Motorola
material contained herein or in the Motorola products described in this instruction manual may not be copied, reproduced,
distributed, merged or modified in any manner without the express written permission of Motorola. Furthermore, the purchase of
Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents or patent applications of Motorola, as arises by operation of law in the sale of a product.
Usage and Disclosure Restrictions
License Agreement
The software described in this document is the property of Motorola, Inc. It is furnished by express license agreement only and may
be used only in accordance with the terms of such an agreement.
Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is prohibited by law. No part of the software or
documentation may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, without prior written permission of Motorola, Inc.
High Risk Activities
Components, units, or third–party products used in the product described herein are NOT fault–tolerant and are NOT designed,
manufactured, or intended for use as on–line control equipment in the following hazardous environments requiring fail–safe
controls: the operation of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic Control, Life
Support, or Weapons Systems (“High Risk Activities”). Motorola and its supplier(s) specifically disclaim any expressed or implied
warranty of fitness for such High Risk Activities.
Trademarks
and Motorola are registered trademarks of Motorola, Inc.
Product and service names profiled herein are trademarks of Motorola, Inc. Other manufacturers’ products or services profiled
herein may be referred to by trademarks of their respective companies.
Copyright
Copyright 2000 Motorola, Inc.
All Rights Reserved
Printed on
Recyclable Paper
REV010598
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Apr 2001
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Table of Contents
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
Release 2.16.0
This manual includes...
Chapter Version Description Page
Front V00.04 Foreword, General Safety, Revision History, Patent
Notification 3
1V01.03 Introduction 13
2V02.03 Site Preparation 33
3V03.03 How to Unpack the SC 4812ET BTS 59
4V04.03 Cabinet Mounting 67
5V05.03 Cabinet Cabling 81
6V06.03 What’s Next and Cleanup 119
AV0A.03 Installing RGPS 123
BVOB.03 Cabinet Specifications 127
CVOC.03 Hardware Installation Quickstart 137
DVOD.03 SC 4812ET/SC 614 BTS Power Sharing 145
EV0F.02 SC 4812ET – SC 614/SC 614T Companion Frame
Installation 157
FV0F.02 SC 4812ET to SC 4812ET Power Sharing 169
GVOG.01 SC 4812ET – SC 4812ET Companion Frame
Installation 185
HVOH.01 Installing RF GPS 181
IVOI.01 Minimum Requirements for CSU 185
Index 189
Foreword
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
V00.04
6
Scope of manual
This manual is intended for use by cellular telephone system
craftspersons in the day-to-day operation of Motorola cellular system
equipment and ancillary devices. It is assumed that the user of this
information has a general understanding of telephony, as used in the
operation of the Public Switched Telephone Network (PSTN), and is
familiar with these concepts as they are applied in the cellular
mobile/portable radiotelephone environment. The user, however, is not
expected to have any detailed technical knowledge of the internal
operation of the equipment.
This manual is not intended to replace the system and equipment
training offered by Motorola, although it can be used to supplement or
enhance the knowledge gained through such training.
Text conventions
The following special paragraphs are used in this manual to point out
information that must be read. This information may be set-off from the
surrounding text, but is always preceded by a bold title in capital letters.
The four categories of these special paragraphs are:
Presents additional, helpful, non-critical information that
you can use.
NOTE
Presents information to help you avoid an undesirable
situation or provides additional information to help you
understand a topic or concept.
IMPORTANT
*
Presents information to identify a situation in which
equipment damage could occur, thus avoiding damage to
equipment.
CAUTION
Presents information to warn you of a potentially
hazardous situation in which there is a possibility of
personal injury.
WARNING
. . . continued on next page
Foreword
– continued
Apr 2001
V00.04 7
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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The following typographical conventions are used for the presentation of
software information:
SIn text, sans serif BOLDFACE CAPITAL characters (a type style
without angular strokes: i.e., SERIF versus SANS SERIF) are used to
name a command.
SIn text, typewriter style characters represent prompts and the
system output as displayed on an operator terminal or printer.
SIn command definitions, sans serif boldface characters represent those
parts of the command string that must be entered exactly as shown and
typewriter style characters represent command output responses
as displayed on an operator terminal or printer.
SIn the command format of the command definition, typewriter
style characters represent the command parameters.
Changes to manual
Changes that occur after the printing date are incorporated into your
manual by Cellular Manual Revisions (CMRs). The information in this
manual is updated, as required, by a CMR when new options and
procedures become available for general use or when engineering
changes occur. The cover sheet(s) that accompany each CMR should be
retained for future reference. Refer to the Revision History page for a list
of all applicable CMRs contained in this manual.
Receiving updates
Technical Education & Documentation (TED) maintains a customer
database that reflects the type and number of manuals ordered or shipped
since the original delivery of your Motorola equipment. Also identified
in this database is a “key” individual (such as Documentation
Coordinator or Facility Librarian) designated to receive manual updates
from TED as they are released.
To ensure that your facility receives updates to your manuals, it is
important that the information in our database is correct and up-to-date.
Therefore, if you have corrections or wish to make changes to the
information in our database (i.e., to assign a new “key” individual),
please contact Technical Education & Documentation at:
MOTOROLA, INC.
Technical Education & Documentation
1 Nelson C. White Parkway
Mundelein, Illinois 60060
U.S.A.
Phone:
Within U.S.A. and Canada 800-872-8225. . . . .
Outside of U.S.A. and Canada +1-847-435–5700. .
FAX: +1-847-435–5541. . . . . . . . . . . . . . . . . . . . . .
. . . continued on next page
Foreword
– continued
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
V00.04
8
Reporting manual errors
In the event that you locate an error or identify a deficiency in your
manual, please take time to write to us at the address above. Be sure to
include your name and address, the complete manual title and part
number (located on the manual spine, cover, or title page), the page
number (found at the bottom of each page) where the error is located,
and any comments you may have regarding what you have found. We
appreciate any comments from the users of our manuals.
24-hour support service
If you have any questions or concerns regarding the operation of your
equipment, please contact the Customer Network Resolution Center for
immediate assistance. The 24 hour telephone numbers are:
Arlington Heights, IL 800–433–5202. . . . . . . . .
Arlington Heights, International +1–847–632–5390.
Cork, Ireland 44–1793–565444. . . . . . . . . . . . . . . .
Swindon, England 44–1793–565444. . . . . . . . . . . . .
General Safety
Apr 2001
V00.04 9
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Remember! . . . Safety
depends on you!!
The following general safety precautions must be observed during all
phases of operation, service, and repair of the equipment described in
this manual. Failure to comply with these precautions or with specific
warnings elsewhere in this manual violates safety standards of design,
manufacture, and intended use of the equipment. Motorola, Inc. assumes
no liability for the customer’s failure to comply with these requirements.
The safety precautions listed below represent warnings of certain dangers
of which we are aware. You, as the user of this product, should follow
these warnings and all other safety precautions necessary for the safe
operation of the equipment in your operating environment.
Ground the instrument
To minimize shock hazard, the equipment chassis and enclosure must be
connected to an electrical ground. The BTS must be connected to a
permanent terminal, and not via a plug to ensure a firm ground at all
times.
Do not operate in an explosive
atmosphere
Do not operate the equipment in the presence of flammable gases or
fumes. Operation of any electrical equipment in such an environment
constitutes a definite safety hazard.
Keep away from live circuits
Operating personnel must:
Snot remove equipment covers. Only Factory Authorized Service
Personnel or other qualified maintenance personnel may remove
equipment covers for internal subassembly, or component
replacement, or any internal adjustment.
Snot replace components with power cable connected. Under certain
conditions, dangerous voltages may exist even with the power cable
removed.
Salways disconnect power and discharge circuits before touching them.
Do not service or adjust alone
Do not attempt internal service or adjustment, unless another person,
capable of rendering first aid and resuscitation, is present.
Do not substitute parts or
modify equipment
Because of the danger of introducing additional hazards, do not install
substitute parts or perform any unauthorized modification of equipment.
Contact Motorola Warranty and Repair for service and repair to ensure
that safety features are maintained.
General Safety
– continued
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
V00.04
10
Dangerous procedure
warnings
Warnings, such as the example below, precede potentially dangerous
procedures throughout this manual. Instructions contained in the
warnings must be followed. You should also employ all other safety
precautions that you deem necessary for the operation of the equipment
in your operating environment.
Dangerous voltages, capable of causing death, are present in this
equipment. Use extreme caution when handling, testing, and
adjusting.
WARNING
Revision History
Apr 2001
V00.04 11
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Manual Number
68P09253A94
Manual Title
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
Version Information
The following table lists the manual version, date of version, and
remarks on the version.
Version
Level Date of Issue Remarks
1Apr 2001 Original draft from engineering
Patent Notification
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
V00.04
12
Patent numbers
This product is manufactured and/or operated under one or more of the
following patents and other patents pending:
4128740 4661790 4860281 5036515 5119508 5204876 5247544 5301353
4193036 4667172 4866710 5036531 5121414 5204977 5251233 5301365
4237534 4672657 4870686 5038399 5123014 5207491 5255292 5303240
4268722 4694484 4872204 5040127 5127040 5210771 5257398 5303289
4282493 4696027 4873683 5041699 5127100 5212815 5259021 5303407
4301531 4704734 4876740 5047762 5128959 5212826 5261119 5305468
4302845 4709344 4881082 5048116 5130663 5214675 5263047 5307022
4312074 4710724 4885553 5055800 5133010 5214774 5263052 5307512
4350958 4726050 4887050 5055802 5140286 5216692 5263055 5309443
4354248 4729531 4887265 5058136 5142551 5218630 5265122 5309503
4367443 4737978 4893327 5060227 5142696 5220936 5268933 5311143
4369516 4742514 4896361 5060265 5144644 5222078 5271042 5311176
4369520 4751725 4910470 5065408 5146609 5222123 5274844 5311571
4369522 4754450 4914696 5067139 5146610 5222141 5274845 5313489
4375622 4764737 4918732 5068625 5152007 5222251 5276685 5319712
4485486 4764849 4941203 5070310 5155448 5224121 5276707 5321705
4491972 4775998 4945570 5073909 5157693 5224122 5276906 5321737
4517561 4775999 4956854 5073971 5159283 5226058 5276907 5323391
4519096 4797947 4970475 5075651 5159593 5228029 5276911 5325394
4549311 4799253 4972355 5077532 5159608 5230007 5276913 5327575
4550426 4802236 4972432 5077741 5170392 5233633 5276915 5329547
4564821 4803726 4979207 5077757 5170485 5235612 5278871 5329635
4573017 4811377 4984219 5081641 5170492 5235614 5280630 5339337
4581602 4811380 4984290 5083304 5182749 5239294 5285447 D337328
4590473 4811404 4992753 5090051 5184349 5239675 5287544 D342249
4591851 4817157 4998289 5093632 5185739 5241545 5287556 D342250
4616314 4827507 5020076 5095500 5187809 5241548 5289505 D347004
4636791 4829543 5021801 5105435 5187811 5241650 5291475 D349689
4644351 4833701 5022054 5111454 5193102 5241688 5295136 RE31814
4646038 4837800 5023900 5111478 5195108 5243653 5297161
4649543 4843633 5028885 5113400 5200655 5245611 5299228
4654655 4847869 5030793 5117441 5203010 5245629 5301056
4654867 4852090 5031193 5119040 5204874 5245634 5301188
Apr 2001
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Chapter 1: Introduction
This section includes... Product Description 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of this Document 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Overview 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Documents 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acronyms 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Hardware 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Tools 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Materials Available from Motorola 21. . . . . . . . . . . . . . . . . . . . . .
RF Cabinet External FRUs 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Cabinet Internal FRUs 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Internal FRUs 28. . . . . . . . . . . . . . . . . . . . . . . . . . .
Enclosure Dimensions 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enclosure Clearances 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table 1-1: Acronyms 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1-2: Installation Hardware Supplied with Cabinets 18. . . . .
Table 1-3: Recommended Tools 20. . . . . . . . . . . . . . . . . . . . . . . .
Table 1-4: Cables, Tools and Hardware 21. . . . . . . . . . . . . . . . . . .
Table 1-5: Cabinet Dimension 29. . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
Figure 1-1: SC 4812ET Installation Hardware 19. . . . . . . . . . . . . .
Figure 1-2: SC 4812ET RF Cabinet 22. . . . . . . . . . . . . . . . . . . . .
Figure 1-3: RF Cabinet External FRUs 23. . . . . . . . . . . . . . . . . . .
Figure 1-4: SC 4812ET LPAs 23. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1-5: External Blower Assembly (EBA) 24. . . . . . . . . . . . .
Figure 1-6: RF Cabinet Internal FRUs 25. . . . . . . . . . . . . . . . . . .
Figure 1-7: Power Cabinet 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1-8: Power Cabinet with Batteries Installed 28. . . . . . . . .
Figure 1-9: Minimum Cabinet Clearances 30. . . . . . . . . . . . . . . . .
Figure 1-10: Min. Site Clearances for SC 4812ET Cabinets 31. .
1
Introduction
– continued
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
V02.03
14
Product Description
The SC 4812ET BTS consists of an RF Cabinet that is an outdoor,
weatherized version of the SC 4812T. The RF cabinet is powered by 27
VDC and each cabinet has the capability to support up to 4 carriers (at 3
sector) or 2 carriers (at 6 sector). An optional outdoor, weatherized
Power Cabinet that provides AC/DC rectified power and battery back–up
is also available. An air to air heat exchanger is used for conditioning
each cabinet, except in the LPA area of the RF cabinet which uses
blower fans to draw outside air over the LPAs.
The SC 4812T utilizes a new RF “Trunking” technique that provides
shared power between sectors and increased RF output capability. The
SC 4812ET will support additional expansion cabinets to add more
carriers. Duplexer/Directional couplers will be standard equipment for
the SC 4812ET BTS.
The RF Cabinet houses the fan modules, Combined CDMA Channel
Processor shelf (C–CCP), Linear Power Amplifiers (LPA) modules, LPA
trunking backplane, Bandpass 2:1 & 4:1 Combiners, Duplexer/Receive
Filter/Directional Couplers (DRDC) and a DC Power distribution
assembly. The Power Cabinet (PC) provides +27 V DC distribution and
battery backup for the SC 4812ET. The Power Cabinet houses batteries,
battery heaters, rectifiers, an AC Load Center (ACLC), a power
distribution assembly, and two duplexed GFCI convenience outlets.
Scope of This
Document
This document provides information pertaining to the installation of the
Motorola SC4812ET CDMA Base Transceiver Subsystem (BTS) and
optional equipment. The basic frame installation is described in the RF
and Power Cabinet mounting chapter. Expansion cabinet information
will be included in future manual revisions.
For detailed installation information of non–Motorola equipment, refer
to the vender manuals provided with such equipment.
Manual Overview
Chapter 1 – “Introduction” – This chapter describes manual contents,
recommended documents, supplied and recommended tools and
hardware, and equipment identification.
Chapter 2 – “Site preparation” – This chapter details preparing the site
(concrete pad, rooftop, etc.) for RF and Power Cabinet installation,
location considerations, pad and roof mounting instructions, and ground
system information.
Chapter 3 – “How to Unpack the SC 4812ET BTS” – This chapter
contains information on how to unpack the RF and Power Cabinet and
how to inspect for damage.
1
Introduction
– continued
Apr 2001
V02.03 15
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Chapter 4 – “Cabinet Mounting” – This chapter covers cabinet
preparation, rooftop (elevated) and concrete pad mounting, and battery
installation.
Chapter 5 – “Cabinet Cabling” – This chapter contains procedures for
cabling the RF and Power Cabinet. This includes earth ground, alarm &
span line, RGPS, RF GPS, LFR, RF, AC power, DC power, and other
cabling considerations.
Chapter 6 – “What’s Next and Cleanup” – This chapter includes site
cleanup and a pre–optimization checklist.
Appendix A – “Installing RGPS”— This appendix covers the mounting
and installation of the RGPS hardware.
Appendix B – “Cabinet Specifications”— This appendix covers the
basic specifications of the SC 4812ET RF Cabinet and Power Cabinet.
Appendix C – “Installation Quickstart” – A quick reference quide to the
installation of the SC 4812ET BTS.
Appendix D – “SC 4812ET/SC 614 BTS DC Power Sharing” – This
appendix covers the instructions for powering both the SC 4812ET RF
Cabinet and the SC 614T BTS from one SC 4812ET Power Cabinet.
Appendix E – “SC 4812ET – SC 614/SC 614T Companion Frame
Installation” – This appendix covers the instructions for converting the
existing SC 614T site from a starter frame to an expansion frame.
Appendix F – “SC 4812ET to SC 4812ET DC Power Sharing” – This
appendix covers the instructions for cabling a SC 4812ET Power
Cabinet to two 4812ET RF Cabinets.
Appendix G – “SC 4812ET – SC 4812ET Companion Frame
Installation” – This appendix covers the instructions for connecting a
starter frame to an expansion frame.
Appendix H –“Installing RF GPS”
Appendix I – “Minimum Requirements for Customer purchased CSU”
Recommended
Documents
The following documents are recommended to perform the installation
of the cell site equipment:
SSC 4812ET CDMA Optimization (Motorola part number
68P09253A74)
SSC 4812ET Field Replaceable Unit (FRU) Identification Guide
(Motorola part number 68P09253A48)
1
Introduction
– continued
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
V02.03
16
SSite Document (generated by Motorola Systems Engineering) which
includes:
–trial specific documentation
–channel allocation
–contact list (customer)
–ancillary/expendable equipment list
–site wiring lists
–card placement
–contact list (Motorola support)
–job box inventory
SDemarcation Document (Scope of Work agreement)
SGrounding Guidelines for Cellular Radio Installations (Motorola part
number 68P81150E62)
SInstallation manuals for non-Motorola equipment (for reference
purposes only).
Acronyms
Table 1-1 defines the acronyms used in this manual.
Table 1-1: Acronyms
Acronym Definition
AMR Alarm Monitoring and Reporting Card
AWG American Wire Gauge
BBX–1X Broadband Transceiver Cards
BSS Base Station System
BTS Base Transceiver Subsystem
BSWG British Standard Wire Gauge
CBSC Centralized Base Station Controller
CCD CDMA Clock Distribution card
C–CCP Combined CDMA Channel Processor
CDMA Code Division Multiple Access
CHI Concentration Highway Interface
CIO Combiner Input/Output
CSM Clock Synchronization Manager
CSU Channel Service Unit
DRDC Duplexer/Receiver Filter/Directional Coupler
DS1 One Time Slot on T1 Span Line
EBA External Blower Assembly
EMX Electronic Mobile Exchange
EMPC Expansion Multicoupler Preselector Card
. . . continued on next page
1
Introduction
– continued
Apr 2001
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Table 1-1: Acronyms
Acronym Definition
EMPC6 Expansion Multicoupler Preselector Card (for 6–sector)
ETIB SC 4812ET Interface Board
FRU Field Replaceable Unit
GLI2 Group Line Interface 2
GPS Global Positioning Subsystem
GFCI Ground Fault Circuit Interrupter
HSO High Stability Oscillator
HSOX High Stability Oscillator Expansion Board
IIP3 Input Intercept Point
ISB Inter–shelf Bus
LAPD Link Access Protocol “D”
LAN Local Area Network
LPA Linear Power Amplifier
LPAC LPA Control Board
LFR Low Frequency Receiver
LMF Local Maintenance Facility
MCC–1X Multi–channel CDMA Card
MMI Man–Machine Interface
MPC Multicoupler/Preselector Card
MGB Main Ground Bar
OSP Outside plant
PB Punch Block
PCSC Personal Communications Switching Center
PSTN Public Switched Telephone Network
PN Pseudo–Random Noise
POTS Plain Old Telephone System
PS Power Supply
RGD Remote GPS Distribution
RGPS Remote Global Positioning System (GPS) Receiver
RFDS Radio Frequency Diagnostic Subsystem
RX Receive
SS Stainless Steel
SAPB Stand Alone Pilot Beacon
STLPA Single Tone Linear Power Amplifier
STRAU SuperCell Transcoder Rate Adaption Unit
TCH Traffic Channel
1
Introduction
– continued
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Apr 2001
V02.03
18
Installation Hardware
Table 1-2 shows the quantity and description of the installation hardware
that is shipped with the RF Cabinet and with the Power Cabinet.
Figure 1-1 is a template guide for identifying the parts.
Table 1-2: Installation Hardware Supplied with Cabinets
RF Power Description
1 1 7/16” Hex Tool
1 1 ESD Wrist Strap
4 4 Cabinet Mounting Brackets
8 8 M12 x 30 Bolts (for Mounting Brackets)
4 4 Insulating Shoulder Washer (for Mounting Bolts)
4 4 5/8” Bolts (to replace eye bolts)
1 1 Compression Lug (for #2 AWG Ground Wire)
2 2 M6 Stainless Steel Locking Hex Nuts (for Ground Lug)
4 4 M12 x 100 Bolt
4 16 M12 Flat Washer
4 4 M12 Lock Washer
4 4 M12 Nut
1 1 Motorola Ivory Touch–Up Paint
2 2 M6 Flat Washer
6 6 M10 Nut
6 6 M10 Flat Washer
6 6 M10 Lock Washer
4 4 5/8” Flat Washer
4 4 Large Flat Washer
1–Weatherseal Bushing and Nut for RGPS Cable
1–MMI Cable
–12 Battery Terminal Straps
–3#2/0 AWG INS WELD Cable (Red)
–3#2/0 AWG INS WELD Cable (Black)
–12 90° Compression Lug (for #2/0 AWG DC Cable)
–1Twisted Pair Cable (for Power Cabinet Alarms to RF Cabinet)
1
Introduction
– continued
Apr 2001
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Figure 1-1: SC 4812ET Installation Hardware
M12 X 100
M12 X 30 BOLT
LARGE FLAT
WASHER
5/8” FLAT
WASHER
M12 FLAT
WASHER
M10 FLAT
WASHER
M6 FLAT WASHER
M12 LOCK
WASHER
INSULATION SHOULDER
WASHER
WEATHERSEAL
BUSHING & NUT
5/8” BOLT
COMPRESSION LUG (FOR
#2 AWG GROUND WIRE)
M12 NUT
M10 NUT
M6 NYLON
LOCKING NUT
M10 LOCK
WASHER
FW00468
1
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Recommended Tools
Table 1-3 lists tools recommended for installing RF and Power Cabinets.
Table 1-3: Recommended Tools
Item Tool Description
1Tin Snips
2Wire Brush
3Knife or Scissors
410 mm Nut Driver
519 mm (3/4”) Open ended Torque Wrench (for N–type
connector)
6110 Style Punch Block Termination Tool
7Thomas & Betts TBM14 Hydraulic crimping tool with color
keyed crimp die set (or equivalent)
8Drill Motor
918 mm (11/16”) Masonry Drill Bit
10 Ratchet Handle with 19 mm (3/4”) Socket (Deep Socket or
Ratchet Extension required).
11 Torque Driver (Torque Range: 5–135 N–m [4–100 ft–lbs])
with 19 mm (3/4”) and 10 mm Socket
12 Torque wrench for SMA’s Mountz Inc. MTBN2 (Part number
020314) with 5/16” open end head (Part number 020402).
13 Copper–based Conductive Grease (Berndy “Penetrox” or
equivalent).
1
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Materials Available from Motorola
Table 1-4 lists tools and materials available from Motorola. The items
are identified by the Motorola assigned part number and include a brief
description. These items can be ordered from your sales account team.
Table 1-4: Cables, Tools, and Hardware
Material Part Number Description
CGDSRG142BU RG – 142 COAX by the foot
SGDN4232A 1/2” LDF Heliax by the foot
SGDN4234A 7/8” LDF Heliax by the foot
SGDN4235A 1–1/4” LDF Heliax by the foot
SGDN4233A 1–5/8” LDF Heliax by the foot
CGDSFSJ450B 1/2” Superflex Heliax by the foot
CGDSFSJ150A 1/4” Superflex Heliax by the foot
Cables CGTDN7023A Transmission Line Kit for 1/2”
LDF Heliax
CGTDN7025A Transmission Line Kit for 7/8”
LDF Heliax
CGTDN7027A Transmission Line Kit for 1–5/8”
LDF Heliax
CGDS241148 1/2” Superflex Jumper – 30 ft. (1
N Male terminated, 1 N Male
non–terminated)
CGDSICPVC25FT 25 Twisted pair cable – 24 AWG
CGDS237776 110 Punchdown Tool (Handle
only)
Tools CGDS237176 Replacement Blade for use with
110 Punchdown Tool
CGDSTBM25S Crimp Tool for Compression Lug
Hardware CGDS97400036 Earthquake Expansion type An-
chor Bolt
1
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Overview
The major components which make up the Motorola SC 4812ET RF
Cabinet (see Figure 1-2) and Power Cabinet (see Figure 1-7) system are
illustrated in this section.
A service tent [reference: Pelsue Cabinet Mounted Service
Tent; Pelsue (800–525–8460) P/N CM564866M] must be
in place prior to opening the main doors of the SC 4812ET
RF or Power Cabinet during times of inclement weather
(rain, snow, sleet, or hail). This will prevent moisture from
being drawn into the electronics by internal fans and
damaging the equipment.
A service tent [reference: Pelsue Cabinet Mounted Service
Tent; Pelsue (800–525–8460) P/N CM564866M] with a
heater is required to service the SC 4812ET RF Cabinet
when temperatures are below –10 degrees C (14 degrees
F). Temperatures inside the tent should be above 0 degrees
C (32 degrees F) prior to opening the main cabinet door.
This will prevent a rapid temperature change to the
electronics which could result in site outage.
CAUTION
Figure 1-2: SC 4812ET RF Cabinet
Main Door
LPA Door
(Can only be opened after Main Door is open)
RF I/O
Area Cover Plate
Rear I/O Door
Rear DC Conduit Panel
Rear Conduit Panel
FW00189
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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RF Cabinet External
FRUs
Figure 1-3 shows the location of the External Field Replaceable Units in
the RF Cabinet. A brief description of each External FRU is found in the
following paragraphs.
Figure 1-3: RF Cabinet External FRUs
Unpopulated LPA
Shelf Cover
LPA
External Blower
Assembly (EBA)
Note:
LPA Compartment
door not shown for
clarity
FW00190
Linear Power Amplifier (LPA)
The LPA (See Figure 1-4) amplifies RF signals for transmission via the
antenna. The SC 4812ET can accommodate up to 16 LPA’s. The actual
number of LPA’s present depends upon RF Cabinet configuration.
Figure 1-4: SC4812ET LPA
FW00191
. . . continued on next page
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External Blower Assembly (EBA)
The External Blower Assembly (see Figure 1-5) is a modular unit that
provides cooling to the LPA’s, two blowers are used in the RF Cabinet.
The EBA contains two blowers and provides cooling that
is VITAL to prevent service outage and possible damage
to the LPAs. Since the SC 4812ET can continue to operate
normally with one functional blower in the EBA, the EBA
should not be removed until the replacement EBA is
onsite. Then, the EBA is replaced as a unit while the RF
cabinet is running. The replacement must be done within 3
minutes to prevent damage to the LPAs. Refer to the SC
4812ET FRU Guide for details regarding FRU
replacement.
CAUTION
Figure 1-5: External Blower Assembly (EBA)
FW00192
1
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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RF Cabinet Internal FRUs
Figure 1-6 shows the location of the Internal Field Replaceable Units. A
brief description of each Internal FRU is found in the following
paragraphs.
Figure 1-6: RF Cabinet Internal FRUs
DRDC/TRDC LPA’s
CCP Fans
LPA Trunking
Backplane
5 RU Rack Space
RFDS
DC
Power
Dist.
Punch
Block
(back)
EBA
C–CCP Shelf
Combiner
Cage
Circuit
Breaker Panel
ETIB
FW00163
OPTIONAL AREA
Duplexer/Directional Coupler (DRDC)
The DRDC combines, in a single module, the functions of antenna
duplexing, receive band pass filtering, and surge protection.
TX Filter/RX Filter/Directional Coupler (TRDC)
The TRDC is the same as the DRDC but has a separate antenna
connector for TX and RX operation. The TRDC is not available in the
1.9 GHz band.
. . . continued on next page
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26
Combiner Cage (2:1, 4:1, or Band pass Filter)
The Combiner Cage holds the transmit band pass filters, 2:1 combiners,
or 4:1 combiners, depending on system configuration.
Combined CDMA Channel Processor (C–CCP) Shelf
The C–CCP shelf contains the following:
SHigh Stability Oscillator (HSO)/LFR (Optional) card
SClock Synchronization Manager (CSM) on 2 cards (one with GPS
receiver if ordered).
SCDMA Clock Distribution (CCD) cards (2)
SPower Supply cards (2 minimum, 3 maximum)
SMulticoupler Preselector Cards (MPC) (2)
SAlarm Monitoring and Reporting (AMR) cards (2)
SMulti Channel CDMA [MCC–1X (8E or 24), MCC–1X (8E/24)]
cards (up to 12)
SBroadband Transceiver (BBX–1X) cards (up to 13)
SCombined Input/Output (CIO) (1)
SGroup Line Interface (GLI2) cards (2)
SBBX2 Switch card (1)
SModem (optional)
SFiller Panels
SFan Module (3)
Punch Block
The Punch Block is the interface point of the RF Cabinet between the
T1/E1 span lines, the Customer I/O, alarms, multi–cabinet timing
(RGPS and RHSO), and Pilot Beacon control (optional).
Span I/O Board
The Span I/O Board provides the interface for the span lines from the
CSU to the C–CCP backplane.
RF Diagnostic Subsystem (RFDS)
The RFDS provides the capability for remotely monitoring the status of
the SC 4812ET RF Transmit and Receive paths.
SC 4812ET Interface Board (ETIB) & LPA Control Brd (LPAC)
The ETIB is an interconnect board showing status LEDs for the RF
Cabinet, as well as providing secondary surge protection. The LPAC
board provides the interface for the LPA connection.
SC 4812ET Trunking Backplane
The Trunking Backplane contains a complex passive RF network that
allows RF signals to share the resources of a bank of four LPAs. It also
provides DC Power and digital interconnect.
1
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Heat Exchanger
The Heat Exchanger provides cooling to the internal compartment of the
RF Cabinet. The fan speed of the heat exchangers adjusts automatically
with temperature. The Heat Exchanger is located in the primary front
door of the RF Cabinet.
Power Cabinet
Figure 1-7 illustrates the Power Cabinet design.
Figure 1-7: Power Cabinet
GFCI Outlet
Cover
Rear I/O
Door
Rear AC Conduit
Panel
Battery Door
Main Door
Rear DC
Conduit Panel
FW00193
1
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Power Cabinet Internal FRUs
Figure 1-8 shows the location of the Internal Field Replaceable Units.
The FRUs are described in the following paragraphs.
Figure 1-8: Power Cabinet with Batteries Installed (Doors Removed for Clarity)
NOTE
Punch Block
is not visible
in this view.
Rectifier
Shelves
Rectifier
Alarm
Module
DC
Circuit
Breakers
AC
Load
Center
AC Outlet
Cover
Temperature
Control
Module
FRONT VIEW POWER CABINET
Batteries
(Battery
Heaters
located under
batteries)
FW00164
Batteries
The batteries provide a +24V DC backup to the RF Cabinet should AC
Power be lost. The Power Cabinet can accommodate a total of 24 12V
batteries, configured in 12 strings of 2 batteries each. The time duration
of backup provided depends on system configuration.
Battery Heater
The battery heaters provide heating to the batteries in the Power Cabinet.
A separate heater is required for each string of batteries. The heater is a
pad the batteries sit on located top of each battery shelf. The number of
heaters is dependent on system configuration.
. . . continued on next page
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Battery Compartment Fan
The battery compartment fan provides air circulation for the two battery
compartments. It is located on the inside of the battery compartment
door.
Heat Exchanger
The Heat Exchanger provides cooling to the rectifier compartment of the
Power Cabinet. The Heat Exchanger is located in the primary front door
of the Power Cabinet.
Rectifiers
The +27V rectifiers convert the AC power supplied to the Power Cabinet
to +27V DC to power the RF Cabinet and maintain the charge of the
batteries.
AC Load Center (ACLC)
The ACLC is the point of entry for AC Power to the Power Cabinet. It
incorporates AC power distribution and surge protection.
Punch Block
The Punch Block is the interface for the alarm signalling between the
Power Cabinet and the RF Cabinet.
Enclosure Dimensions
Table 1-5 show the dimensions for the SC 4812ET RF and Power
Cabinet enclosures.
Table 1-5: Cabinet Dimensions
Height Width Item Depth Weight (Max)
1677 mm
(66”)1423 mm
(56”)SC4812ET RF Cabinet 915 mm
(36”)680 kg
(1500 lbs)
1677 mm
(66”)1423 mm
(56”)Power Cabinet 965 mm
(38”)1590 kg
(3500 lbs)
The primary front door of the RF Cabinet and both front
doors of the Power Cabinet are removable. The depth of
the cabinets with the door(s) removed is 711 mm (28”).
NOTE
1
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Enclosure Clearances
Figure 1-9 and Figure 1-10 show the clearances for the SC 4812ET RF
and Power Cabinet enclosures.
Figure 1-9: Minimum Cabinet Clearances for Door Openings and Mounting Brackets
Power Cabinet
RF Cabinet
NOTE
Not To
Scale
0mm
(0I)
1550mm
(61I)1880mm
(74I)
660mm
(26I)
0mm
(0I)255mm
(10I)1676mm
(66I)1803mm
(71I)
1372mm
(54”)
1651mm
(65I)
0mm
(0I)
510mm
(20I)
1220mm
(48”)
1421mm
(56I)
2515mm
(99I)
2363m
(93I)
130mm
(5I)
0mm
(0I)
FW00104
. . . continued on next page
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Figure 1-10: Minimum Site Clearances for SC 4812ET Cabinets
NOTE:
(1) 24” IS RECOMMENDED BETWEEN CABINETS TO ALLOW
SIMULTANEOUS OPENING OF CABINET DOORS
(2) BASED ON FIGURE 1–10 MOTOROLA RECOMMENDS A MINIMUM
PAD (OR PEDESTAL) SIZE OF 2515 MM (99”) BY 3710 MM (146”)
130 mm
(5”)
130 mm
(5”)
330 – 610 mm
(13” – 24”)
660 mm
(26”)
1143 mm
(45”)
3430 – 3710 mm
(135 – 146”)
2515 mm
(99”)
660 mm
(26”)
1143 mm
(45”)
Power
Cabinet
RF Cabinet
FW00105
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Notes
1
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Chapter 2: Site Preparation
This section includes... Overview 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Location 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rooftop Location 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Weight Table 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SC 4812ET RF Configuration 37. . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum Battery Count for Power Cabinet 42. . . . . . . . . . . . . . .
Outdoor Location 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Materials Needed 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Existing Concrete Pad Mounting 46. . . . . . . . . . . . . . . . . . . . . . . .
Drilling Introduction 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drilling Procedure 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rooftop 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rooftop (Elevated) 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New Concrete Pad 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connection Materials 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Concrete Pad and Ground System Installation 51. . . . . . . . . . . . . .
RGPS Mounting Considerations 57. . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table 2-1: DC Cabling Size – Maximum Cable Length 36. . . . . .
Table 2-2: Approximate Weight of SC 4812ET BTS 37. . . . . . . . .
Table 2-3: SC 4812ET FRU Configurations – Duplexed 38. . . . . .
Table 2-4: SC 4812ET FRU Configurations – Non–Duplexed 38.
Table 2-5: Min Battery Strings Required Sector–Carrier Configs 42
Table 2-6: Heliax Cable Loss and Minimum Bend Radii 44. . . . .
Table 2-7: Number of wires in Conduit 44. . . . . . . . . . . . . . . . . . .
Table 2-8: Drilling Procedure 47. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-9: Concrete Pad & Ground System Install Procedure 52. .
Figures
Figure 2-1: Drill Stabilization 48. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2-2: Mounting Hole Drilling and Cleaning 49. . . . . . . . . . .
. . . continued on next page
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
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34
Figure 2-3: Grounding Ring Detail 53. . . . . . . . . . . . . . . . . . . . . .
Figure 2-4: Conduit Stub Height Detail 53. . . . . . . . . . . . . . . . . . .
Figure 2-5: Cabinet Dimensions 54. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2-6: Pad Forms and Conduit Layout 55. . . . . . . . . . . . . . . .
Figure 2-7: Mounting Hole Dimensions 55. . . . . . . . . . . . . . . . . . .
Figure 2-8: SC 4812ET RF Cabinet Conduit I/O 56. . . . . . . . . . . .
Figure 2-9: SC 4812ET Power Cabinet Conduit I/O 57. . . . . . . . .
Overview
This chapter covers the SC 4812ET BTS site preparation recommended
guidelines.
Installation sites can be classified into one of the three following
categories: Indoor, Rooftop or Outdoor.
All applications will have common requirements and considerations.
Differences between the location site requirements will be covered
throughout the installation section. The following information is meant
to serve as a guideline and can be impacted by site specific
considerations.
Every effort should be made to provide a safe working area
for all installation and service personnel.
WARNING
The mounting surface must be flat. Door closure problems
may occur if the cabinets are not installed on a flat surface.
CAUTION
Care should be taken to ensure that the AC power pedestal
does not interfere with the future addition of expansion or
optional equipment service area.
IMPORTANT
*
Indoor Location
The following items should be considered when choosing an indoor
location for the SC 4812ET BTS:
–A permanent location is more desirable than a temporary one.
–The cabinets should be placed in a location with appropriate
clearance from any obstructions. For minimum clearances see
Chapter 1.
. . . continued on next page
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Apr 2001
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–Adequate ventilation must be available to dissipate heat loads of
7,500 Watts (25,600 Btu / hr) for the RF Cabinet and 3,000 Watts
(10,300 Btu / hr) for the Power Cabinet (a total of 10,500 Watts;
35,900 Btu / hr), and maintain a maximum temperature of no
greater than 50 Deg C (122 Deg F).
–The AC meter and main disconnect should not be mounted to either
cabinet.
–Locations should be selected that will minimize accidental or
intentional vandalism. Do not select a location that is, or may be,
subject to submersion (i.e. diversion channels, sub–basements, etc).
While the RF and Power Cabinet are well insulated from the
environment, they will not tolerate submersion.
–There should be adequate clearance through doors and passageways
to allow movement of the cabinet from the delivery area to the
installation site.
–Verify, prior to final site selection, the availability and accessibility
to good grounding (ground system resistance must be less than 10
Ohms, with 5 Ohms or less being the goal; see ”Recommended
Documentation” for Grounding Guidelines), RF cabling, Telco
wiring, and 208–240 VAC power.
–There should be adequate space available for the future addition of
expansion or optional equipment.
–The location of an AC power pedestal to mount the AC meter, main
breaker, generator plug, etc. (if necessary), is at the installers option.
–Every effort should be made to minimize the separation distance
between the RF and Power Cabinet (see Table 2-1) for maximum
cable length between cabinets
Table 2-1: DC Cabling Size – Maximum Cable Length
Cable Size Resistance per 1,000 ft @ 50Deg C
mW (THHN Cable) Maximum Cable Length
(Max Total Voltage Drop 0.4V,
assumes 90A per cable)
2/0 AWG 96.8 (Superflex) 6.7 m (22 ft)
4/0 AWG 54 (Duraflex) 12.5 m (41 ft)
NOTE
–3.65 m (12 ft.) is the length of the # 2/0 AWG DC Power Cable supplied with the Power Cabinet.
–If a custom cable is used, 610 mm (2 ft.) should be reserved at both ends to allow for the distance from the
edge of the cabinet to the power terminals.
2
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
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36
Rooftop Location
In addition to the Indoor location considerations, the following
additional items should be considered when choosing a Rooftop
location:
Roof load carrying limits must be reviewed and an
appropriate support structure must be installed to support
the cabinets as required.
WARNING
The cabinets must be elevated sufficiently above the roof
surface to prevent water from puddling around its base.
Although the cabinets are well insulated from the
environment they will not tolerate submersion.
CAUTION
Loading Considerations (also see Table 2-2):
–A single SC 4812ET RF Cabinet can weigh up to 680 kg. (1500
lbs) and a single Power Cabinet enclosure can weigh up to 1590 kg.
(3500 lbs) with the batteries installed (batteries are shipped
separately). Expansion enclosures and optional equipment will add
weight (refer to the introduction section of this manual for obtaining
detailed information on the optional equipment).
The Power Cabinet as shipped without batteries installed
can weigh up to 544 kg (1200 lbs.).
NOTE
–When the cabinet is to be roof mounted, be sure to consider the rain
and/or snow loading of the region when determining whether the
roof can support the load.
Zoning requirements – that relate to building mounted equipment
should be checked for any restrictions that may affect cabinet or antenna
placement.
Adequate clearance through doors, passageways and stairwells to allow
movement of the cabinet from the delivery area to the installation site.
Minimum separation distance – Every effort should be made to
minimize the separation distance between the RF and Power Cabinet
(see Table 2-1).
Cabinet Weight Table
Table 2-2 lists the approximate weight of both the RF and Power
cabinets in various site configurations.
. . . continued on next page
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Table 2-2: Approximate Weight of SC 4812ET BTS
# of Sectors
– Carriers1RF Cabinet2Power Cabinet3
Total Weight Weight/Area Total Weight Weight/Area
3570 kg (1260 lbs) 563 kg/m2 (0.8 psi) 1015 kg (2240 lbs) 1002 kg/m2 (1.84 psi)
6610 kg (1340 lbs) 602 kg/m2 (0.85 psi) 1206 kg (2660 lbs) 1192 kg/m2 (1.7 psi)
9644 kg (1420 lbs) 636 kg/m2 (0.91 psi) 1400 kg (3080 lbs) 1383 kg/m2 (2.0 psi)
12 680 kg (1500 lbs) 671 kg/m2 (0.95 psi) 1590 kg (3500 lbs) 1571 kg/m2 (2.2 psi)
NOTE
1 To obtain this number, multiply the number of sectors and the number of carriers present (i.e., 3 sector, 3
carrier is 9 sector–carriers)
2 Assumes 12 DRDCs present in cabinet
3 Assumes 4 hours of battery backup and maximum battery weight of 41 kg (90 lbs) each.
SC 4812ET RF FRU
Configuration
SC 4812ET FRU Configurations for Duplexed sites are described in
Table 2-3 (see page 38).
SC 4812ET FRU Configurations for Non–Duplexed sites are described
in Table 2-4 (see page 39).
2
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– continued
38 SCTM 4812ET RF and Power Cabinet Hardware Installation Manual DRAFT
Table 2-3: SC 4812ET FRU Configurations – Duplexed
BTS 1 – Starter BTS 2 – Expansion
Con–
fig
Ttl #
Sec
Car VH
LPAs Trnk
Mod 4812
DBPF
4812
2:1
Cmbr
4812
4:1
Cmbr DRDCs Dplxd
Ants VH
LPAs Trnk
Mod 4812
DBPF
4812
2:1
Cmbr
4812
4:1
Cmbr DRDCs Dplxd
Ants Expansion Field Recabling Expansion
Impact to
Service
3 Sector
1
car 3 4 1 3 3 opt 3 opt 6 6
2
car 6 8 2 3 3 opt 3 opt 6 6 Add Tx cable trunking module
to DBPF/conbiner. None
3
car 9 12 3 3 3 3 opt 6 6 Add Tx cable trunking module
to DBPF/ combiner. Recable
Starter Tx to add combiners
Take down
ALL Tx
4
car 12 16 4 NA 6 3 opt 6 6 Add Tx cable trunking module
to combiner. Recable Starter Tx
to add combiners
Take down
Carrier 3
Tx
5
car 15 16 4 NA NA 3 6 (3
opt) 3 4 1 3 3 opt 3 opt 3 3
Recable Starter Tx to add
combiners, recable Starter Rx,
cable Rx exp. between frames,
& move 3 antennas to exp.
Take down
diversity
Rx and
ALL Tx.
6
car 18 16 4 NA NA 3 6 (3
opt) 3 8 2 NA 3 opt 3 opt 3 3 Add Tx cable trunking module
to DBPF/combiner. Recable
Exp Tx to add combiners
Take down
Carrier 5
Tx
7
car 21 16 4 NA NA 3 6 (3
opt) 3 12 3 NA 3 3 3 3 Add Tx cable trunking module
to combiner
Take down
Carriers 5
and 6 Tx
8
car 24 16 4 NA NA 3 6 (3
opt) 3 16 4 NA 3 3 3 3 Add Tx cable trunking module
to combiner None
6 Sector
1
car 6 8 2 6 6–opt NA 12 12
2
car 12 16 4 6 6–opt NA 12 12 Add Tx cable trunking module
to DBPF/combiner None
3
car 18 16 4 NA 6 NA 12(6–
opt) 6 8 2 6 6–opt NA 6 6
Recable Starter Tx to add
combiners, recable Starter Rx,
cable Rx exp between frames,
and move 6 antennas to exp.
Take down
diversity
Rx and
ALL Tx
. . . continued on next page
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– continued
Apr 2001 39
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual DRAFT
Table 2-3: SC 4812ET FRU Configurations – Duplexed
Con–
fig
Expansion
Impact to
Service
Expansion Field Recabling
BTS 2 – ExpansionBTS 1 – Starter
Ttl #
Sec
Car
Con–
fig
Expansion
Impact to
Service
Expansion Field Recabling
Dplxd
Ants
DRDCs
4812
4:1
Cmbr
4812
2:1
Cmbr
4812
DBPF
Trnk
Mod
VH
LPAs
Dplxd
Ants
DRDCs
4812
4:1
Cmbr
4812
2:1
Cmbr
4812
DBPF
Trnk
Mod
VH
LPAs
Ttl #
Sec
Car
8
car None
Add Tx cable trunking module
to combiner
3333NA4163
6 (3
opt)
3NANA41624
4
car 24 16 4 NA 6 NA 12(6–
opt) 6 16 4 NA 6 NA 6 6 Add Tx cable trunking module
to combiner. Recable Exp Tx to
add combiners
Take
dowm
Carrier 3
Tx
NOTES: Tx combiners typicalln not used until system exceeds 2 carriers.
Duplexed diversity Rx antennas are routed to DRDCs in expansion frame and then diversity Rx expansion is routed back to starter frame.
Tx paths are NOT routed between expansion and starter frames (i.e. each frame must have its own Tx antennas which reduces loss).
When expansion frame is added, the unused DRDCs in the starter frame could be removed and replaced with cover plates, but it is not recommended due to the time involved.
Table 2-4: SC 4812ET FRU Configurations – Non–Duplexed
BTS 1 – Starter BTS 2 – Expansion
Con–
fig
Ttl #
Sec
Car VH
LPAs Trnk
Mod 4812
DBPF
4812
2:1
Cmbr
4812
4:1
Cmbr TRDCs RX
Ant TX
Ant VH
LPAs Trnk
Mod 4812
DBPF
4812
2:1
Cmbr
4812
4:1
Cmbr TRDCs RX
Ant TX
Ant
Expansion Field
Recabling
Expansion
Impact to
Service
3 Sector
1
car 3 4 1 3 3 opt 3 opt 6 6 3
2
car 6 8 2 3 3 opt 3 opt 6 6 6 (3
opt)
Add Tx cable trunking
module to
DBPF/conbiner. None
3
car 9 12 3 NA 6 3 opt 6 6 6 (3
opt)
Add Tx cable trunking
module to DBPF/
combiner. Recable
Starter Tx to add
combiners
Take down
ALL Tx
4
car 12 16 4 NA 6 3 opt 6 6 6 (3
opt)
Add Tx cable trunking
module to combiner.
Recable Starter Tx to
add combiners
Take down
Carrier 3
Tx
. . . continued on next page
Site Preparation
– continued
40 SCTM 4812ET RF and Power Cabinet Hardware Installation Manual DRAFT
Table 2-4: SC 4812ET FRU Configurations – Non–Duplexed
Con–
fig
Expansion
Impact to
Service
Expansion Field
Recabling
BTS 2 – ExpansionBTS 1 – Starter
Ttl #
Sec
Car
Con–
fig
Expansion
Impact to
Service
Expansion Field
Recabling
TX
Ant
RX
Ant
TRDCs
4812
4:1
Cmbr
4812
2:1
Cmbr
4812
DBPF
Trnk
Mod
VH
LPAs
TX
Ant
RX
Ant
TRDCs
4812
4:1
Cmbr
4812
2:1
Cmbr
4812
DBPF
Trnk
Mod
VH
LPAs
Ttl #
Sec
Car
5
car 15 16 4 NA NA 3 6 (3
opt) 33 (6
opt) 4 1 3 3 opt 3 opt 3 3 3
Recable Starter Tx to
add combiners, recable
Starter Rx, cable Rx exp.
between frames, & move
3 antennas to exp.
Take down
diversity
Rx and
ALL Tx.
6
car 18 16 4 NA NA 3 6 (3
opt) 33 (6
opt) 8 2 NA 3 opt 3 opt 3 3 3
Add Tx cable trunking
module to
DBPF/combiner. Recable
Exp Tx to add combiners
Take down
Carrier 5
Tx
7
car 21 16 4 NA NA 3 6 (3
opt) 33 (6
opt) 12 3 NA 3 3 3 3 3 Add Tx cable trunking
module to combiner
Take down
Carriers 5
and 6 Tx
8
car 24 16 4 NA NA 3 6 (3
opt) 33 (6
opt) 16 4 NA 3 3 3 3 3 Add Tx cable trunking
module to combiner None
6 Sector
1
car 6 8 2 6 6 opt NA 12 12 6
2
car 12 16 4 6 opt 6NA 12 12 6
(12
opt)
Add Tx cable trunking
module to DBPF/
combiner. Recable
Starter Tx to add
combiners.
None
3
car 18 16 4 NA 6 NA 12(6–
opt) 668 2 6 opt 6NA 6 6 6
Recable Starter Tx to
add combiners, recable
Starter Rx, cable Rx exp
between frames, and
move 6 antennas to exp.
Take down
diversity
Rx and
ALL Tx
4
car 24 16 4 NA 6 NA 12(6–
opt) 6616 4 NA 6 NA 6 6 6
Add Tx cable trunking
module to combiner.
Recable Exp Tx to add
combiners
Take
dowm
Carrier 3
Tx
. . . continued on next page
Site Preparation
– continued
Apr 2001 41
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual DRAFT
Table 2-4: SC 4812ET FRU Configurations – Non–Duplexed
Con–
fig
Expansion
Impact to
Service
Expansion Field
Recabling
BTS 2 – ExpansionBTS 1 – Starter
Ttl #
Sec
Car
Con–
fig
Expansion
Impact to
Service
Expansion Field
Recabling
TX
Ant
RX
Ant
TRDCs
4812
4:1
Cmbr
4812
2:1
Cmbr
4812
DBPF
Trnk
Mod
VH
LPAs
TX
Ant
RX
Ant
TRDCs
4812
4:1
Cmbr
4812
2:1
Cmbr
4812
DBPF
Trnk
Mod
VH
LPAs
Ttl #
Sec
Car
8
car None
Add Tx cable trunking
module to combiner
33333NA416
3 (6
opt)
3
6 (3
opt)
3NANA41624
NOTES: Tx combiners typically not used until system exceeds 2 carriers.
Duplexed diversity Rx antennas are routed to TRDCs in expansion frame and then diversity Rx expansion is routed back to starter frame.
Tx paths are NOT routed between expansion and starter frames (i.e. each frame must have its own Tx antennas which reduces loss).
When expansion frame is added, the unused TRDCs in the starter frame could be removed and replaced with cover plates, but it is not recommended due to the time involved.
Site Preparation
– continued
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
42
Minimum Battery Count for
Power Cabinet
Table 2-5 lists the number of Battery strings required for the different
sector–carrier configurations and the backup power time provide by the
various combinations.
Table 2-5: Minimum Battery Strings Required for Sector–Carrier Configurations
# of
Battery
Strings
3 Rectifiers
(3 Sector–Carriers) 4 Rectifiers
(6 Sector–Carriers) 5 Rectifiers
(9 Sector–Carriers) 6 Rectifiers
(12 Sector–Carriers)
0 0 0 0 0
1
2
3
4
5
64.0 hrs
74.8 hrs 3.5 hrs
85.4 hrs 4.0 hrs
96.0 hrs 4.5 hrs 3.6 hrs
10 6.7 hrs 5.0 hrs 4.0 hrs 3.3 hrs
11 7.4 hrs 5.5 hrs 4.4 hrs 3.6 hrs
12 8.0 hrs 6.0 hrs 4.8 hrs 4.0 hrs
! CAUTION
The minimum number of battery strings presented in this table must be met or reduced backup time and
inadvertant tripping of the battery system breakers could result.
The backup durations presented within this table is an
estimated time based on 25 Deg C (77Deg F) battery
temperature, actual backup duration may vary with system
configuration and loading.
NOTE
Outdoor Location
Do not select a location that is, or may be subject to
submersion (i.e., floodplains, diversion channels, etc.).
While the cabinets are well insulated from the
environment, they will not tolerate submersion.
CAUTION
2
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Apr 2001 43
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
In addition to the Indoor location considerations, the following
additional items should be considered when choosing an outdoor
location:
–The cabinet should be placed in a location with appropriate
clearance from any obstructions. For minimum clearances see
Chapter 1.
–It should be the practice of any installing company to acquire, in
advance of construction, the rights of way from landowners, and
permits or approvals from public authorities. It is recommended that
the BTSs be placed in servitudes, on dedicated (recorded)
easements, or on property owned by the company. Unrecorded
easements should be avoided.
–The cabinet should be easily accessible with adequate parking to
ensure craftsmen and vehicle safety. Also, place the cabinet where it
will not create a visual or physical obstruction to either vehicular or
pedestrian traffic.
–Locations should be selected that will minimize accidental or
intentional vandalism. The use of protective posts and/or fences
should be considered when located near parking areas where
vehicles may hit the cabinet.
–Every effort should be made to minimize the separation distance
between the RF and Power Cabinet (see Table 2-1).
Materials Needed
The following list of materials may vary depending on site specific
requirements. If in doubt contact Motorola Cellular Support Center. The
phone number is found in the Foreword of this manual.
Installation hardware is provided with the cabinets. (Refer to Chapter 1
for a description of this hardware).
Tools – Refer to Chapter 1 for a list of tools that will be helpful when
installing the SC4812ET BTS.
RF Transmission Lines
–Cables are 12.7 mm (1/2”), 22.2 mm (7/8”), 31.8 mm (1–1/4”) or
41.3 mm (1–5/8”) FoamR Heliax, depending on dB loss budget.
See Table 2-6 for dB Loss per foot and minimum bending radius.
–Either 102 mm (4”) or 152 mm (6”) conduit, depending on size of
Heliax (see Table 2-7), is recommended.
2
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DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
44
It may not be necessary or desirable to run the transmission
lines in any conduit at all. In this case the transmission
lines should be protected from falling objects (i.e., ice,
etc.) or from being stepped on.
NOTE
Table 2-6: Heliax Cable Loss and Minimum Bend Radii
Heliax Motorola Part dB loss per meter dB loss per foot Min. bend radius
Heliax
Cable Motorola Part
No. @ 1 GHz @ 2 GHz @ 1 GHz @ 2 GHz Metric U.S.
RG 142 CGDSRG142BU .49 .66 .15 .20 10 mm .4”
3/8” LDF N/A .115 .167 .035 .051 95 mm 3–3/4”
1/2”LDF SGDN4232A .0768 .1132 .0234 .0345 125 mm 5”
1/2” FSJ4 N/A .119 .177 .0363 .0541 13.75 mm 1.25”
7/8”LDF SGDN4234A .0430 .0646 .0131 .0197 250 mm 10”
1–1/4”LDF SGDN4235A .0317 .0476 .00967 .0145 380 mm 15”
1–5/8”LDF SGDN4233A .0269 .0410 .00819 .0125 510 mm 20”
NOTE
As an additional rule of thumb, allow 0.1 dB additional loss for each connection point.
Table 2-7: Number of wires in Conduit
Conduit Foam Heliax Trade Size (Cable Type LDF)
Conduit
Trade Size 9.5 mm (3/8”)12.7 mm (1/2”)21.4 mm (7/8”)31.8 mm (1–1/4”)41.3 mm (1–5/8”)
2”5 2 1 – –
2–1/2”7 3 1 – –
3”11 5 3 – –
4”19 9 5 1 1
6”20 20 12 3 2
* IMPORTANT
The values listed above were calculated based on the percent of conduit cross–section filled and recommended
limits set forth by Andrew Corporation. These limits are based on common conditions or proper cabling and
alignment of conductors where the length of pull and the number of bends are within reasonable limits. It
should be recognized that for certain conditions a larger size conduit or a lessor fill should be considered.
Power Cabinet AC Power Connection
208–240 VAC – Flexible Liquid Tight Conduit is recommended.
2
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Apr 2001 45
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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The Power Cabinet is rated at 130 Amps (100 Amps
continuous / 130 Amps non–continuous, in the range of
208–240V AC, see Table 5-32 for details). Maximum
cable size that can be accommodated is 300 kc mil.
Cabling sizing should be determined by Local Electrical
Codes, using 90Deg C rated conductors, and derated for
50 Deg C operation. Motorola recommends not less than
#2/0 AWG (#1 BSWG; 50 mm2) copper for
buried/raceway cables to the power pedestal, with an
associated power pedestal breaker size of 150 Amps for
one Power Cabinet.
IMPORTANT
*
The AC power pedestal or meter should be provided with a breaker to
protect the cable from the pedestal to the Power Cabinet. The Power
Cabinet rating is 130Amp. A 150–amp breaker is recommended, or as
appropriate for local electrical code.
The knockout in the I/O plate of the Power Cabinet is the
proper size for a 2” Trade size conduit fitting.
NOTE
Ground Wire Connection (RF and Power Cabinet) – #3 B.S.W.G (#2
AWG; 35 mm2) solid–tinned copper wire or equivalent is recommended
RF Cabinet Alarm Cable Connection
–Sixteen (16) twisted pair cable
–25.4 mm (1”) conduit (maximum)
RF Cabinet Span and Modem Cable Connection
–Thirteen (13) twisted pair cable
–25.4 mm (1”) conduit (maximum)
Main RF Cable – 50 Ohm Coaxial, male N–type connector on one end,
customer specific on other end.
RGPS Cable (if applicable) – See Table 5-1 for cable specifications
RF GPS Cable (if applicable) – See Table 5-1 for cable specifications
LFR Cable (if applicable) – See Table 5-1 for cable specifications
. . . continued on next page
2
Site Preparation – continued
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
46
Power Cabinet Alarm Cable – A Twelve (12) wire, Six (6) twisted pair
cable [Cable supplied with the Power Cabinet is 4.5 m (15 ft) in length].
Custom cable lengths are available from Storm Products
(214–637–1381); 9215 Premier Row, Dallas, TX. 75247.
Part number “070197–6SA” for Non–Plenum rated cable.
NOTE
DC Power Interconnect
–#1 BSWG (#2/0 AWG; 50 mm2) insulated weld wire or equivalent
is recommended (supplied with the Power Cabinet)
–51 mm (3”) conduit
The DC Power Cabling and the Power Cabinet Alarm
Cable can be run in the same 3” Conduit from the RF
Cabinet to the Power Cabinet.
NOTE
Existing Concrete Pad
Mounting
The mounting surface must be flat. Door closure problems
may occur if the BTS is not installed on a flat surface.
CAUTION
For an installation where the cabinet will mount flush to an existing
concrete floor, all of the connections to the cabinet will be made through
the rear I/O area of the cabinet. For this reason, the cabinet must be set
in place and bolted down prior to running any conduits or wiring.
Conduit/wire routing will be discussed in Chapter 5.
Lightning protection is provided with the cabinet. A good earth ground
(ground system resistance must be less than 10 Ohms, with 5 Ohms or
less being the goal), is required for the lightning protection equipment to
perform properly. Refer to Motorola’s guidelines (Motorola Publication
68P81150E62) for details on the design of a grounding system. Conform
to local electrical construction standards for conduit materials and sizing.
2
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Drilling Introduction
The following includes steps that must be followed to safely drill the
mounting holes. Check the mounting hardware to be used to make sure
you use the correct drill bit sizes.
Motorola recommended anchor bolts (Motorola P/N
CGDS97400036) must be used to assure safety in the
event of an earthquake.
CAUTION
Safety glasses, dust masks, and ear plugs must be worn by
all installation personnel, including those in the immediate
vicinity of personnel operating the drill equipment.
WARNING
Drilling Procedure
Before beginning, read the following steps in their entirety to familiarize
yourself with the procedure.
Table 2-8: Drilling Procedure
Step Action
1After the cabinet position has been established, the mounting hole location can be marked using the
dimensions supplied in Figure 2-5, by using the 1:1 installation template supplied in Appendix G, or
by placing the cabinet over the desired location and tracing the mounting hole locations.
NOTE
–Motorola recommended anchor bolts require 18 mm (11/16”) drill size.
n WARNING
–Always wear safety glasses, dust masks, ear plugs, and proper attire when using power equipment.
Remove any loose jewelry and tuck shoe laces into work boots.
. . . continued on next page
2
Site Preparation – continued
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
48
Table 2-8: Drilling Procedure
Step Action
2Position the end of the drill bit in the center of the first mark on the floor. Stabilize the drill by holding
the drill handle at the 90_ position, refer to Figure 2-1. Rest the drill against your leg while drilling to
counter the drill’s tendency of rotating out of your hand while drilling through reinforcement bars and
stone aggregate.
90 Degree
_
Figure 2-1: Drill Stabilization
PLACE KNEE NEXT TO
DRILL
TO CONTROL ROTATION
POSITION WORK
BOOT NEXT TO BIT
WHEN STARTING TO
PREVENT BIT FROM
WALKING.
POSITION
DRILL BIT IN
CENTER OF
MARK ON
FLOOR
3Begin to drill in short bursts, keep the drill bit from “walking” by using the side of your work boot to
hold the drill in place until drill “has a bite” in the concrete. Once started, run drill at full speed.
. . . continued on next page
2
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Apr 2001 49
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Table 2-8: Drilling Procedure
Step Action
4Have a second installer turn on the shop vacuum and place the nozzle near the hole to collect dust and
debris (see Figure 2-2). This will extend the life of the drill bit, and give you a better idea of how deep
the hole is. Wrapping a piece of electrical tape around the drill bit to indicate the desired depth is
suggested.
Figure 2-2: Mounting Hole Drilling and Cleaning
TAPE WRAPPED
AROUND BIT TO
INDICATE DEPTH
VACUUM USED TO
COLLECT DEBRIS
WHILE DRILLING/
CLEANING HOLES
AIR GUN USED TO CLEAR
DEBRIS FROM MOUNTING
HOLE
5Repeat Step 3 and 4 for all remaining holes to be drilled for this cabinet.
6Clean all holes by using the shop vacuum in conjunction with the air compressor gun attachment.
Begin by using short bursts of air several inches away from the hole, gradually decreasing the distance
from the hole while increasing the duration of the air bursts until the hole is completely free of loose
material.
Rooftop
Roof load carrying limits must be reviewed and an
appropriate support structure must be installed to support
the RF and Power Cabinet as required.
WARNING
The cabinet must be elevated sufficiently above the roof
surface to prevent water from puddling around its base.
Although the cabinets are well insulated from the
environment they will not tolerate submersion.
CAUTION
. . . continued on next page
2
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DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
50
Refer to Figure 2-5 and Figure 2-6 for proper position of mounting
locations when designing the support structure.
For most rooftop installations all of the connections to the cabinet will
be made through the rear of the cabinet I/O area. For this reason, the
cabinet must be set in place and bolted down prior to running any
conduits or wiring. Conduit/wire routing will be discussed in Chapter 5.
Lightning protection is included in the cabinet. A good earth ground
(ground system resistance must be less than 10 Ohms, with 5 Ohms or
less being the goal) is required for the lightning protection equipment to
perform properly. Refer to Motorola’s guidelines (Motorola Publication
68P81150E62) for details on the design of a grounding system. Conform
to local electrical construction standards for conduit materials and sizing.
Rooftop (Elevated)
For a rooftop installation which is elevated sufficiently above the roof
surface, most of the connections can be made through the bottom of the
cabinet by terminating the conduit at the bottom of the rear I/O area. See
Figure 2-6 for recommended conduit/cable entrance layout.
New Concrete Pad
The mounting surface must be flat. Door closure problems
may occur if the cabinets are not installed on a flat surface.
To help reduce the chance of damage caused by lightning
strikes, it is required that a ground ring be constructed
when the pad is built. See section titled ”Ground System
Installation”.
CAUTION
Variations in pad construction methods may be required to comply with
local conditions, practices, or building codes.
Install the grounding system, and electrical conduits (see Figure 2-3,
Figure 2-4, and Figure 2-6) prior to pad construction. Refer to the
Motorola guidelines (Motorola Publication 68P81150E62) for details on
the design of a grounding system. Conform to local electrical
construction standards for conduit materials and sizing. Refer to
Table 2-6 and Table 2-7 for minimum bend radius of antenna cables and
maximum number of cables in a conduit.
If it is desired to make cabling through the bottom of the cabinets, it is
recommended that the conduits be positioned using the dimensions
given in Figure 2-5 prior to pouring the concrete pad. Installation in this
manner allows for the connections to the RF and Power Cabinet to be
made through the bottom of the I/O area, although it may be desirable to
make the antenna connections through the rear wall. For the connections
that are made through the bottom of the I/O area, conduits and wiring
can be installed prior to arrival of the cabinet.
. . . continued on next page
2
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Apr 2001 51
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Conduits that are pre–installed in a concrete pad below
grade must be capped at the time of conduit installation to
prevent rainwater from collecting in the conduit.
CAUTION
If a precast concrete foundation pad is used, the pad should
be in place before the cables are installed. This will avoid
an unsafe condition caused by personnel reaching under a
pad, as it is lowered, to feed cable through the pad
openings.
WARNING
Connection Materials
This section defines connection materials and specifications and may
vary depending on site–specific requirements. If in doubt, contact
Motorola Cellular Support Center (telephone number is found in the
Foreword of this manual).
Concrete Pad and Ground
System Installation
The following procedure describes the concrete pad ground system
installation. The following steps are meant to serve as a guideline and
can be impacted by the local codes of the installation site location.
Materials Needed:
CADWELD Joints
8–12 – ground wire to ground rod joints (for 2–6 cabinets)
4 – rebar joints
1 – ground wire to rebar joint
Ground Rods - 8–12 – 5/8” Diameter, 2438 mm (96”) long ground
rods (for 2–6 cabinets)
Framing Materials – This list of materials is used to form the pad.
–No. 66–44 wire mesh, or 9.5 mm (3/8”) rebar, sized to fit the pad
–Concrete (Must conform to ASTMC94, specification for ready mix
concrete)
It is recommended that the concrete pad maintain a
minimum thickness of 102 mm (4 inches) or the length of
the anchor bolt to be used, whichever is greater.
NOTE
2
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
52
Installation Procedure:
Install the concrete pad and ground system as described in Table 2-9.
Table 2-9: Concrete Pad and Ground System Installation Procedure
Step Action
1Ensure that the pad location is firm and level. If the ground around the location is not firm, compact
the soil and construct a level base for the pad using a minimum of six inches of gravel or per local
code requirements.
2Dig trenches 610 mm (24”) deep (minimum), and wide enough to accommodate the ground ring and
conduits.
3Install conduits. Recommended locations are shown in Figure 2-6. Refer to Table 2-6, and Table 2-7
for minimum bend radius of Foam Heliax and maximum number of Heliax in a conduit.
4Install 152 mm (6”) concrete pad frame with integral rebars and dry wells. Refer to Figure 2-6 for pad
dimensions.
5Install #3 BSWG (#2 AWG; 35 mm2) solid tinned copper perimeter ground ring (see Figure 2-3).
6Exothermic weld #3 BSWG (#2 AWG; 35 mm2) solid tinned copper wire from concrete pad rebar to
perimeter ground ring.
7Install copper clad steel ground rods.
8Exothermic weld perimeter ground ring to steel ground rods.
9Install three #3 BSWG (#2 AWG; 35 mm2) solid tinned copper wires, exothermic welded to perimeter
ground ring, for BTS master ground, Power Cabinet master ground, and for antenna tower ground
straps.
NOTE
For sites with multiple cabinets an additional #3 BSWG (#2 AWG; 35 mm2) solid tinned copper wire
must be installed for each additional cabinet.
10 Fill the trenches in the area of the pad with soil and tamp.
11 Pour concrete until level or slightly above the concrete forms. Puddle the concrete along the edges of
the forms. Use a straight piece of lumber or equivalent as a guide to level the concrete.
12 For additional finishing, wait until the pad no longer looks as if water is standing on top and trowel
smooth.
13 After the second day the concrete forms can be removed.
14 The concrete mounting pad must cure adequately before the cabinets may be installed.
. . . continued on next page
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Apr 2001 53
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Grounding Ring:
The following information details installation of the site grounding ring.
Refer to Figure 2-3 for detail dimensions.
Figure 2-3: Grounding Ring Detail
CONCRETE
PAD
GROUNDING RING #3 BSWG
(#2 AWG;35 mm2) SOLID
COPPER W/TIN COATING
2438 mm (96”)
GROUND
RODS (8–12)
GROUND TO CABINET (1 PER CABINET) #3 BSWG
(#2 AWG;35 mm2) SOLID COPPER W/TIN COATING
GROUND TO ANTENNA
#3 BSWG (#2 AWG; 35
mm2) SOLID COPPER
W/TIN COATING
609 mm
(2’ 0”)
GROUND TO REBAR
(CADWELD)
609 mm
(2’ 0”)
REBAR JOINTS
(CADWELD) (4)
609 mm
(2’ 0”)
REBAR
10 mm (3/8”)
MINIMUM.
FRONT
GROUND TO CABINET (1 PER CABINET) #3 BSWG (#2
AWG;35 mm2) SOLID COPPER W/TIN COATING
609 mm
(2’ 0”)
CONDUIT STUBS ARE
TO BE 25 TO 50 MM (1”
TO 2”) ABOVE
CONCRETE PAD.
CONCRETE
PAD
Figure 2-4: Conduit Stub Height Detail
–Conduits that are Pre–installed must be capped to
prevent moisture from collecting prior to cabinet
installation.
–Used when I/O goes through the bottom of the
cabinet I/O area, i.e. when conduit is set in concrete
pad or floor.
NOTE
2
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
54
POWER CABINET
RF CABINET
102 mm
(4”)
365 mm
(15”)
711 mm
(28”)
605 mm
(24”)
1030 mm
(41”)
1425 mm
(56”)270 mm
(11”)
711 mm
(28”)
455 mm
(18”)
1060 mm
(42”)
1425 mm
(56”)
205 mm
(8”)
102 mm
(4”)
341 mm
(14”)
Figure 2-5: Cabinet Dimensions
FW00106
2
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DRAFT
DC (TO
RF CABINET)
AC (TO PILOT
BEACON)
MAIN AC
0
867 mm
049 mm
1470 mm
0
(34.2”)
1158 mm
(45.6”)
(1.9”)
1188 mm
(46.7”)
49 mm
(1.9”)
1390 mm
(54”)
(57.9”)
1471 mm
(57.9”)
1518 mm
(59.8”)
89 mm
(3.5”)
527 mm
(20.7”)
1518 mm
(59.8”)
587 mm
(23”)
1091 mm
(42.9”)
16 mm
(0.6”)
614 mm
(24.2”)
475 mm
(18.7”)
DC (TO POWER
CABINET)
MAIN RF
EXPANSION RF
SPAN/ALARM
EXPANSION 1 EXPANSION 2
Power Cabinet RF Cabinet
87 mm
(3.4”)
61 mm
(2.4”)–65 mm
(–2.5”)
77 mm
(3”)
Figure 2-6: Pad Forms and Conduit Layout
973 mm
(38.3)
PILOT BEACON
GROUND
GROUND
FW00005
1289 mm
(50.7”)
145 mm
(5.7”)
14 mm
(0.5”)
05 mm
(0.2”)
DC (TO RF
CABINET) DC (TO POWER
CABINET)
Figure 2-7: Mounting Hole Dimensions
Note:
Hole Pattern is
Identical for RF and
Power Cabinets
1518 mm
(59.8”)
475 mm
(18.7”)
2
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
56
0 mm
(0”)
49 mm
(1.9”)
133 mm
(5.2”)
272 mm
(10.6”)
304 mm
(11.9”)
67 mm
(2.6”)
104 mm
(4.1”)
139 mm
(5.4”)
65 mm
(2.6”)
65 mm
(2.6”)
261 mm
(10.3”)
469 mm
(18.5”)
587 mm
(23.1”)
70 mm
(2.8”)
Figure 2-8: SC 4812ET RF Cabinet Conduit I/O
0 mm
(0”)
650 mm
(25.5”)
595 mm
(23.4”)
75 mm
(3.0”)629 mm
(24.7”)
415 mm
(16.3”)
340 mm
(13.3”)
1069 mm
(42.1”)
FW00194
211 mm
(8.3”)
0 mm
(0”)
0 mm
(0”)
2
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Apr 2001 57
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
0 mm
(0”)
0 mm
(0”)
230 mm
(9”)446 mm
(17.5”)546 mm
(21.4”)
82 mm
(3.2”)
Figure 2-9: SC 4812ET Power Cabinet Conduit I/O
49 mm
(1.9”)
217 mm
(8.5”)
FW00195
RGPS Mounting
Considerations
The RGPS Head requires specific mounting considerations in order to
properly observe the GPS satellites.
–The mounting pipe for the RGPS Head should be mounted
vertically with less than five degrees of tilt.
–The RGPS Head needs to have a clear view of the sky, preferably to
within ten degrees of the horizon in all directions. The less sky that
can be observed the fewer the number of potential satellites that can
be tracked and hence the poorer the RGPS performance.
–For general operation, the RGPS Head needs to be able to
continuously track signals from at least four (4) GPS satellites. It is
theoretically possible to operate the BTS with only one GPS
satellite visible, however, operating in this mode it is not
recommended and requires an accurate site survey.
2
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–Place the RGPS Head where RF obstructions of the sky are
minimized. The “sky” includes everything to within ten degrees
(10°) of the horizon in all directions. RF obstructions includes
buildings, towers, snow, foliage and debris.
–Separate the RGPS Head from radiating sources. Excessive RF
energy can degrade the RGPS head’s ability to observe the GPS
satellites. The RGPS head receives on the GPS L1 frequency of
1575.42 MHz and has filters incorporated within to minimize the
effects of potential RF interference, however, strong radiators can
overwhelm the filters, thus degrading the units reception capability.
–The RGPS Head is rated for ambient air temperatures from –40 Deg
C to +50 Deg C, and has ratings for Humidty, Shock, Waterproof,
UV Light Resistance, Vibrations, Salt, Fog, ESD, EMI, and
Altitude.
–The RGPS system will support up to 2000 feet (610 m) of overall
cable length from the RGPS Head to the last connected base station.
If a long cable run needs to be broken into pieces, minimize the
number of breaks in the cable.
2
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Chapter 3: How to Unpack the SC 4812ET BTS
This section includes... Unpacking the SC 4812ET BTS 59. . . . . . . . . . . . . . . . . . . . . . . . .
Materials Needed 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Order of Unpacking 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Identification 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How the Cabinet is Shipped 61. . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Unpack a Cabinet 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpack Procedure 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Inspect for Damage 66. . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Inspect Equipment for Damage 66. . . . . . . . . . . . . . . . . . .
Tables
Table 3-1: Unpacking Cabinet (Wood Shipping Crate) 62. . . . . . .
Table 3-2: Unpacking Cabinet (Cardboard Shipping Carton) 63. .
Table 3-3: Inspecting Cabinets for Damage 66. . . . . . . . . . . . . . . .
Figures
Figure 3-1: SC 4812ET RF Cabinet 60. . . . . . . . . . . . . . . . . . . . . .
Figure 3-2: SC 4812ET Power Cabinet 61. . . . . . . . . . . . . . . . . . .
Figure 3-3: Wood Shipping Crate 64. . . . . . . . . . . . . . . . . . . . . . . .
Figure 3-4: Cardboard Shipping Carton 65. . . . . . . . . . . . . . . . . . .
Unpacking the SC 4812ET
BTS
This chapter provides the procedures necessary to identify, unpack, and
inspect the equipment for damage.
Materials Needed
–Tin Snips
–Knife or Scissors
3
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Order of unpacking
The unpacking process requires that the following procedures be
completed in the order shown:
1. Identify the equipment
2. Unpack the RF Cabinet
3. Unpack the Power Cabinet
4. Inspect the equipment for damage
Equipment Identification
Use Figure 3-1 and Figure 3-2 to visually identify the SC 4812ET RF
and Power Cabinet, respectively.
Figure 3-1: SC 4812ET RF Cabinet
3
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Figure 3-2: SC 4812ET Power Cabinet
Overview
The purpose of this section is to describe how the SC 4812ET RF and
Power Cabinets are packaged for shipping and how to correctly unpack
the cabinets in preparation for installation.
How the Cabinet is Shipped
The cabinets are packed standing up in either cardboard or wood cartons
(see Figure 3-3 and Figure 3-4). The RF Cabinet is shipped fully
assembled and all internal cabling installed. The Power Cabinet is
shipped without the batteries installed.
3
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62
How to Unpack a Cabinet
–The steel bands surrounding the carton can spring out
from the carton when the bands are cut. To avoid
personal injury, stand safely to the side of the bands
while cutting.
–A fully loaded RF Cabinet can weigh up to 635 Kg
(1400 lbs), and a Power Cabinet as shipped (without
the batteries installed) can weigh up to 544 kg (1200
lbs).
–If a cabinet is tipped more than 10 inches from
vertical, it is in danger of tipping over. Handle with
extreme caution to avoid tipping.
WARNING
Do NOT lift or attempt to move the RF or Power Cabinet
by the doors, they will not support this type of loading and
may be damaged in the process.
CAUTION
Unpack Procedure
Wood Shipping Crate
Use Table 3-1 to properly unpack the RF and Power Cabinet if the wood
shipping create was used.
Table 3-1:Unpacking a Cabinet (Wood Shipping Crate)
Step Action
1Inspect the crates and cartons for damage. (Refer to
Figure 3-3).
NOTE
It is recommended that two (2) people perform this procedure.
2Loosen the latches on the bottom of the crate.
3Remove the clips holding the top piece of wood, and remove
the top piece of the crate.
4Remove the clips holding the side pieces of wood, and
remove the sides of the crate.
. . . continued on next page
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Table 3-1:Unpacking a Cabinet (Wood Shipping Crate)
Step Action
5Using appropriate lifting device, remove cabinet from bottom
pallet.
6Immediately inspect the equipment for damage, (see
Table 3-3) and report the extent of any damage to the
transport company and to the appropriate
engineering/management personnel.
Cardboard Shipping Carton
Use Table 3-2 to properly unpack the RF and Power Cabinet if the
cardboard shipping carton was used.
Table 3-2:Unpacking a Cabinet (Cardboard Shipping Carton)
Step Action
1Inspect the cartons for damage. (Refer to Figure 3-4).
NOTE
It is recommended that two (2) people perform this procedure.
2Using tin snips, cut each outer steel band that surrounds the
carton.
3Lift off cardboard carton.
4Using appropriate lifting device, remove cabinet from bottom
pallet.
5Immediately inspect the equipment for damage, (see
Figure 3-4) and report the extent of any damage to the
transport company and to the appropriate
engineering/management personnel.
3
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Figure 3-3: Shipping Crate (Wood)
3
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Figure 3-4: Cardboard Shipping Carton
3
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How to Inspect for
Damage
Before installing any equipment, inspect it for damage as described in
Table 3-3. Report any damage found to the appropriate supervisory
personnel.
–Static sensitive equipment requires the use of ESD
protective gear such as a wriststrap to be used during
the installation and repair.
–A wriststrap is supplied with the installation hardware
and the ESD jack is located in the C–CCP Shelf in
the RF Cabinet (Figure 1-6).
WARNING
How to Inspect Equipment for
Damage
Table 3-3: Inspecting Cabinets for Damage
Step Action
1Inspect the exterior of the RF and Power Cabinet for:
–Dents
–Scratches
–Squareness of the cabinet.
2Inspect the interior of the RF and Power Cabinet for:
–Bent FRU brackets
–Dislodged FRUs
–Cables that may have become disconnected.
3Report any damage found to the appropriate supervisory
personnel.
3
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Chapter 4:Cabinet Mounting
This section includes...
Overview 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Front Doors (Optional) 68. . . . . . . . . . . . . . . . . . . .
Existing Concrete Pad Mounting Procedure 69. . . . . . . . . . . . . . .
Rooftop (Elevated Substructure) Mounting Procedure 71. . . . . . .
New Concrete Pad Mounting 72. . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery and Heater Pad Installation 73. . . . . . . . . . . . . . . . . . . . . .
Installing Batteries in the Power Cabinet 76. . . . . . . . . . . . . . . . . .
Tables
Table 4-1: Removing Front Cabinet Doors 68. . . . . . . . . . . . . . . .
Table 4-2: Concrete Pad Mounting 69. . . . . . . . . . . . . . . . . . . . . . .
Table 4-3: Rooftop (Elevated Substructure) Mounting 72. . . . . . .
Table 4-4: New Concrete Pad Mounting 73. . . . . . . . . . . . . . . . . .
Table 4-5: Installing a Battery Heater Pad 75. . . . . . . . . . . . . . . . .
Table 4-6: Installing a String of Batteries 76. . . . . . . . . . . . . . . . . .
Table 4-7: Materials Required for Battery Cabling 77. . . . . . . . . .
Table 4-8: Power Cabinet Battery Cabling 77. . . . . . . . . . . . . . . . .
Figures
Figure 4-1: Front Cabinet Door Hinge 69. . . . . . . . . . . . . . . . . . . .
Figure 4-2: Cabinet Mounting Brackets 70. . . . . . . . . . . . . . . . . . .
Figure 4-3: Mounting Bolt Configuration 71. . . . . . . . . . . . . . . . .
Figure 4-4: Battery Heater Pad 74. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4-5: Typical 12V Battery 76. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4-6: Power Cabinet – Batteries Installed, Doors Removed 78
Figure 4-7: Partial Cross–Section View of Battery Compartment 79
4
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Overview
This chapter covers the step–by–step instructions for mounting the RF
and Power Cabinet.
Do NOT lift or move the RF or Power Cabinet by the
doors, they will not support this type of loading and may
be damaged in the process.
CAUTION
Removing the Front Doors
(Optional)
Do Not remove the front cabinet doors unless absolutely
required.
WARNING
To facilitate the movement of the RF or Power Cabinet through
doorways or passageways with limited clearance, the front doors of the
cabinets can be removed. The procedure to do this is detailed in
Table 4-1.
Table 4-1: Procedure to Remove the Front Cabinet Doors (if required)
Step Action
1Open the primary front door.
2Disconnect the Heat Exchanger Power and Alarm cables from
the Heat Exchanger.
3For each hinge, loosen the screw that secures the door to the
hinge (See Figure 4-1).
4Remove the windstay latch at the bottom of the door.
5Lift the door straight up off the hinges.
! CAUTION
The front door of both the RF and Power Cabinet can weigh
up to 77 kg (170 lbs). Use extreme care when handling to
avoid damage to the door, heat exchanger, and gasket.
6Repeat for the battery cabinet door of the Power Cabinet if
required.
4
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Figure 4-1: Front Cabinet Door Hinge (Close-up View)
Loosen this screw to remove door
(Top and Bottom Hinges)
Existing Concrete Pad
Mounting Procedure
Mounting the cabinet on a pre–existing concrete pad requires that the
mounting holes be drilled using the procedures in Chapter 2 of this
manual. Follow the procedures in Table 4-2 to mount each cabinet.
Table 4-2: Concrete Pad Mounting
Step Action
1Fasten mounting brackets (see Figure 4-2) onto cabinet with
M12 bolts (supplied in installation hardware). Do NOT torque
the bolts yet. Align the cabinet over the mounting holes.
! CAUTION
Do NOT use the cabinet doors as a hand hold to move the
cabinet around, this could damage the door hinges
2Install the anchor bolts in the four (4) mounting locations in
the mounting brackets attached to the cabinet base. Tighten
the bolts to proper torque recommended by the manufacturer.
n WARNING
Motorola recommended anchor bolts must be used to assure
safety in the event of an earthquake (CGDS97400036). These
bolts should be tightened to 80 N–m (60 ft–lbs.).
3Tighten the M12 bolts attaching the mounting brackets to the
cabinet, torque to 135 N–m (100 ft–lbs) with a 19mm (3/4”)
torque wrench.
. . . continued on next page
4
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Table 4-2: Concrete Pad Mounting
Step Action
4Remove the four (4) eye–bolts (see Figure 4-2) on the top of
the cabinet, replace them with the bolts and washers supplied
with the installation hardware using a 24 mm (15/16”) hex
driver. Torque to 80 N–m (60 ft–lbs).
5Install the wiring as described in Chapter 5 of this manual.
The isolation washers supplied in the hardware installation
kit are provided to give the installer the option of
electrically isolating the cabinet should the situation
require it. The use of the washers is not a requirement.
The grounding of each site is unique, and the isolation of
the cabinet is a site specific decision.
NOTE
Figure 4-2: Cabinet Mounting Brackets
Eye–Bolt
Use supplied M12 washers when fastening the mounting
brackets to the cabinet.
NOTE
. . . continued on next page
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Figure 4-3: Mounting Bolt Configuration
SMALL FLAT WASHER
ROOFTOP
CONCRETE PAD
CONCRETE
ANCHOR BOLT
CGDS97400036
LARGE FLAT WASHER
MOUNTING BRACKET
ISOLATION PAD
M12 X 100 BOLT INSULATING WASHER
(OPTIONAL)
LARGE FLAT WASHER
MOUNTING BRACKET
ISOLATION PAD
MOUNTING
STRUCTURE
(I–BEAM) M12 NUT
LOCK WASHER
SMALL FLAT
WASHER
Rooftop (Elevated
Substructure) Mounting
Procedure
Mounting the cabinet on a rooftop requires that the roof load carrying
support structure be in place prior to mounting the cabinet. See Chapter
2, “Site Preparation” for details.
Roof load carrying limits must be reviewed and an
appropriate support structure must be installed to support
the RF and Power Cabinet as required.
WARNING
Once the support structure is in place, follow the procedures in Table 4-3
to mount the cabinet.
. . . continued on next page
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Table 4-3: Rooftop (Elevated Substructure) Mounting
Step Action
1Fasten mounting brackets (see Figure 4-2) onto cabinet with
M12 bolts and washers (supplied in installation hardware).
Do NOT torque the bolts yet.
! CAUTION
Do NOT use the cabinet doors as a hand hold to move the
cabinet around, this could damage the door hinges
2 Place the cabinet on top of the substructure, so that the mounting
holes are aligned with the holes in the cabinet mounting
brackets.
3Install the mounting bolts into the four (4) mounting locations
in the mounting brackets attached to the cabinet bast. Tighten
the bolts to the proper torque recommended by the
manufacturer of the bolts. If using the M12 bolts supplied
with the installation hardware, tighten the bolts to 80 N–m (60
ft–lbs.) torque.
4Tighten the M12 bolts attaching the mounting brackets to the
cabinet. Torque to 135 N–m (100 ft–lbs) within a 19 mm
(3/4”) torque wrench
5Remove the four (4) eye–bolts (see Figure 4-2) on the top of
the cabinet, replace them with the bolts and washers supplied
with the installation hardware using a 24 mm (15/16”) hex
driver. Torque to 80 N–m (60 ft–lbs).
6Install the wiring as described in Chapter 5 of this manual.
The isolation washers supplied in the hardware installation
kit are provided to give the installer the option of
electrically isolating the cabinet should the situation
require it. The use of the washers is not a requirement.
The grounding of each site is unique, and the isolation of
the cabinet is a site specific decision.
NOTE
New Concrete Pad Mounting
Mounting the cabinet on a new concrete pad which has been designed to
install the cabinet offers some unique opportunities, as the cables, wires,
and conduits can all be routed into the cabinet from the bottom through
the concrete pad.
After the pad has been poured following the procedure in Chapter 2, the
concrete has cured adequately and the mounting holes drilled as detailed
in Chapter 2, follow the procedures in Table 4-4 to install each cabinet.
. . . continued on next page
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Table 4-4: New Concrete Pad Mounting
Step Action
1Fasten mounting brackets (see Figure 4-2) onto the cabinet
with M12 bolts and washers (supplied in installation
hardware). Do NOT torque bolts yet. Align the cabinet over
the holes.
! CAUTION
Do NOT use the cabinet doors as a hand hold to move the
cabinet around, this could damage the door hinges
2Install the anchor bolts in the four (4) mounting locations in
the mounting brackets attached to the cabinet base. Tighten
the bolts to proper torque recommended by the manufacturer.
n WARNING
Motorola recommended anchor bolts must be used to assure
safety in the event of an earthquake (CGDS97400036). These
bolts should be tightened to 80 N–m (60 ft–lbs.).
3Tighten the M12 bolts attaching the mounting brackets to the
cabinet, torque to 135 N–m (100 ft–lbs) with a torque wrench.
4Remove the four (4) eye–bolts (see Figure 4-2) on the top of
the cabinet, replace them with the bolts and washers supplied
with the installation hardware using a 24 mm (15/16”) hex
driver, torque to 80 N–m (60 ft–lbs).
5Install the wiring as described in Chapter 5 of this manual.
The isolation washers supplied in the hardware installation
kit are provided to give the installer the option of
electrically isolating the cabinet should the situation
require it. The use of the washers is not a requirement. The
grounding of each site is unique, and the isolation of the
cabinet is a site specific decision.
NOTE
Battery and Heater Pad
Installation
This section covers the step–by–step instructions for mounting the
batteries and heater pads into the Power Cabinet. The Power Cabinet
can accommodate a total of 12 strings of 2 batteries (24 batteries total)
and 12 heater pads (1 per battery string). The actual number of battery
strings and heaters installed depends upon system configuration. This
section reviews the procedure to install one (1) string of batteries and 1
heater pad. This should be repeated until all batteries and heaters are
installed.
. . . continued on next page
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Batteries and heater pads in the Power Cabinet MUST be
installed in the bottom slots of the battery compartments
and building up. The first string should be installed in
“position 1” (see Figure 4-6), the second in “position 2”
and so on, until all batteries are installed. The heater pad
power cables are ”daisy–chained” from the bottom in each
battery compartment (see Figure 4-7). The last (top) heater
pad cable must be terminated with a connector that is
shipped installed on the cable located in the bottom slot of
each battery compartment (positions 1 and 2).
NOTE
Battery Heater Installation
Table 4-5 reviews the procedure to install a battery heater pad. This
procedure should be repeated until all heater pads are installed.
ALL heater pads should be installed and cables properly
dressed before ANY batteries are installed.
NOTE
Figure 4-4: Battery Heater Pad
Top
Bottom
Front
Rear
Bottom side of the Heater Pad has adhesive liners that
must be removed prior to installation.
NOTE
. . . continued on next page
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Table 4-5: Installing a Battery Heater Pad
Step Action
1n WARNING
Ensure battery heater circuit breakers in ACLC are ”OFF” before heater pad
installation.
Remove the battery mounting bracket (see Figure 4-6) for the appropriate battery slot.
2If this is the first heater pad installed in the battery cabinet (and therefore located in
one of the two bottom battery slots) remove the “Heater Pad Cable Terminating
Connector” from the end of the factory installed cable in the bracket at the back of the
bottom slot of the battery compartment (see Figure 4-7).
* IMPORTANT
Save this terminating connector, it must be used to terminate the cable of the last
heater pad in the battery compartment.
3Remove the adhesive liners, and slide the heater pad into the slot, ensuring proper
orientation (see Figure 4-4) and that the heater pad rests flat on the battery shelf with
the cable to the rear.
4Connect the short heater pad cable to either:
–The cable (factory installed) to the bracket in the back of the bottom slot, if the
heater pad is in position 1 or 2 (see Figure 4-6 and Figure 4-7).
–The long cable of the heater pad in the slot below, if the heater pad is not the first
in the compartment (see Figure 4-7).
* IMPORTANT
Verify that the connector latches engage (there should be an audible “click”) when
connecting cables.
5If the heater pad is the last (top) in the series of heater pads (and therefore does not
have a heater pad above it), terminate the long cable with the terminating connector
removed from the factory installed cable in step 2.
6Repeat this procedure until all heater pads are installed, then proceed to the battery
installation.
After all of the heater pads have been installed and cables
connected, dress the cables behind the battery shelves in
each battery compartment. When dressing cables,
consideration should be given to future accessibility of the
cables should a heater ever need to be replaced. Do not zip
tie cables to battery shelves or each other. Also, do not
tangle cables in one another. Ensure cables are routed such
that a heater pad cable connector for one shelf can be
pulled up from the shelf below it without having to remove
the batteries below.
IMPORTANT
*
4
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Installing Batteries in the
Power Cabinet
Table 4-6 reviews the procedure to install a string of batteries in the
Power Cabinet (see Figure 4-5 and Figure 4-6), this procedure should be
repeated until all battery strings have been installed.
Heater pads must be installed and heater pad cables
properly dressed behind battery shelves before batteries are
installed.
CAUTION
Do not install the batteries until the Power Cabinet has
been bolted down.
NOTE
Table 4-6: Installing a String of Batteries
Step Action
1Remove battery mounting bracket (see Figure 4-6) from the shelf.
2Install each battery into it’s slot, and slide the battery all the way into
the cabinet, ensure that the battery terminals face forward.
n WARNING
Use care when handling batteries, as they can weigh up to 48 kg (105
lbs). Do NOT drop the batteries.
3Replace the battery mounting brackets, and torque the nuts to 5 N–m
(45 in–lbs) with a 10 mm driver.
Figure 4-5: Typical 12V Battery
Power Cabinet Battery Cabling
The objective of this procedure is to install the Power Cabinet battery
connections. The quantity of batteries installed depends on the system
configuration. This section will detail the installation of a “string” of
batteries, this should be repeated until all battery strings have been
installed.
. . . continued on next page
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A string of batteries consists of two (2) batteries connected
in series. The Power Cabinet can accommodate up to
twelve (12) strings of batteries.
NOTE
–All AC and DC power should be removed from the
system until all connections are made.
–Ensure that all of the battery string breakers are off
(white the strip on the bracket is visible), there are a
total of 12 battery string circuit breakers.
WARNING
Materials Needed
Table 4-7 lists the necessary materials. Quantities will be determined by
system configuration.
Table 4-7: Materials Required for Battery Cabling
Qty per
String Description
1Battery Terminal Strap (supplied with the Installation
Hardware)
4Fasteners, 2 per Battery (supplied with Batteries)
1Wire Brush
As Required Copper–based conductive Grease (Berndy “Penetrox” or
equivalent).
Power Cabinet Battery Cabling Procedure
This procedure is used to cable and connect a string of batteries in the
Power Cabinet, it should be repeated until all batteries have been
installed.
This procedure assumes the batteries have already been
installed.
NOTE
Table 4-8: Power Cabinet Battery Cabling
Step Action
1Clean battery terminals with a wire brush.
2Apply liberal coating of “conductive” grease to all battery terminals,
. . . continued on next page
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Table 4-8: Power Cabinet Battery Cabling
Step Action
3Attach the battery terminal strap from the positive (+) terminal on
battery “A” (see Figure 4-6) to the negative (–) terminal on battery
“B” using the fastening hardware supplied with the batteries. Torque
to the recommended value (per battery manufacturer; if using Johnson
Controls batteries, torque is 12.4 N–m (110 in–lbs)).
4Secure the black cable supplied (attached to the black “Return Buss”
on the left side of the battery compartment) to the negative (–)
terminal on battery “A” with the fastening hardware supplied with the
batteries. Torque to the recommended value shown on the battery (per
battery manufacturer; if using Johnson Controls batteries, torque to
12.4 N–m (110 in–lbs)).
5Secure the red cable installed (attached to the red “+ 27V Buss” on the
right side of the battery compartment) to the positive (+) terminal on
battery “B” with the fastening hardware supplied with the batteries.
Torque to the recommended value shown on the battery (per battery
manufacturer; if using Johnson Controls batteries, torque to 124 N–m
(110 in–lbs).
Figure 4-6: Power Cabinet with Batteries Installed (Doors Removed for Clarity)
View of a String
of Batteries
Battery
Mounting
Bracket
Low Voltage
Disconnect
GFCI
Circuit
DC Circuit
Breakers
AC Load
Center
AB
Rectifier Alarm
Module
(Battery Heaters
located under
batteries)
Batteries
Temperature
Control Module
Recifier Shelfs
3
12
4
65
78
910
11 12
Battery ”Position
Number”
Installed Battery
Terminal Strap
Battery
Buss Bar Cable Lug
or Terminal Strap
Bolt and Washer
(Supplied with Battery)
Cross–Section of Typical Battery
Terminal Connection
. . . continued on next page
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Figure 4-7: Partial Cross–Section View of Battery Compartment
Factory
Installed Cable
(to next battery)
Heater Pad
Power Cables
Batteries
Heater Pads
(Under Battery)
Factory Installed Cable
Bracket (See Detail)
Detail of Factory
Installed Cable
Bracket
(from ACLC)
Front of
Power
Cabinet
Important:
After all of the heater pads have been installed and cables connected, dress the
cables behind the battery shelves in each battery compartment. When dressing
cables, consideration should be given to future accessibility of the cables should
a heater ever need to be replaced. Do not zip tie cables to battery shelves or each
other. Also, do not tangle cables in one another. Ensure cables are routed such
that a heater pad cable connector for one shelf can be pulled up from the shelf
below it without having to remove the batteries below.
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Notes
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Chapter 5:Cabinet Cabling
This section includes... Overview 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet I/O Area 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Simplified BTS Cabling Diagram 86. . . . . . . . . . . . . . . . . . . . . . .
Cable descriptions 87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Cabinet Earth Ground 90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Cabinet Alarm, Span Line and Modem Cabling 90. . . . . . . . .
Input and Output Cabling 90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm Signal Specifications 94. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm and Span Line Cable Pin/Signal Information 94. . . . . . . . .
RGPS Cabling Introduction 91. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Punch Block for the Remote GPS (RGPS) 93. . . . . . . . . . . . . . . .
RF GPS Cabling (if applicable) 94. . . . . . . . . . . . . . . . . . . . . . . . .
RF GPS Cabling Procedure 94. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LFR Cabling (if applicable) 95. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LFR Cable Pin/Signal Information 95. . . . . . . . . . . . . . . . . . . . . . .
RF Cabling Main and 103. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure for Rear Installation 104. . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure for Bottom Installation 105. . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Earth Ground 106. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Alarm Cable 107. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Punch Block 107. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Alarm Cable Pin/signal Information 110. . . . . . . . .
DC Power Interconnect to RF Cabinet 110. . . . . . . . . . . . . . . . . . . .
Power input connections 106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Power Cabling 113. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Load Center 114. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Labels 114. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet AC Current Requirements 116. . . . . . . . . . . . . . . . .
Heat Dissipation 117. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table 5-1: BTS Cable Descriptions and Part Numbers 87. . . . . . .
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Table 5-2: Materials Required for Earth Ground Cabling 89. . . . .
Table 5-3: Procedure to Install RF Cabinet Earth Ground Cables 89
Table 5-4: Materials Required for Alarm, Span, and Modem Cabling 92
Table 5-5: Alarm, Span, and Modem Line Cable Installation 92. .
Table 5-6: External Alarm Connector Characteristics and 94. . . . .
Table 5-7: External Alarm Connector and Requirements 94. . . . . .
Table 5-8: Materials Required for RGPS Cabling 97. . . . . . . . . . .
Table 5-9: RGPS Cable Install Procedure 98. . . . . . . . . . . . . . . . .
Table 5-10: Punch Block for the Remote GPS 98. . . . . . . . . . . . . .
Table 5-11: Materials Required for RF GPS Cabling 99. . . . . . . . .
Table 5-12: RF GPS Cable Install Procedure 99. . . . . . . . . . . . . . .
Table 5-13: Materials Required for LFR Cabling 100. . . . . . . . . . .
Table 5-14: LFR Cable Install Procedure 100. . . . . . . . . . . . . . . . . .
Table 5-15: Pin/Signal Information for LFR Cable 100. . . . . . . . . .
Table 5-16: BTS Sector/Carrier Configurations 101. . . . . . . . . . . . .
Table 5-17: Antenna Cables for Duplex 120 Degree Sector 101. . .
Table 5-18: Antenna Cables for Duplex 60 Degree Sector 102. . . .
Table 5-19: Antenna Cables for Non–Duplexed 120 Degree 96. .
Table 5-20: Antenna Cables Non–duplexed 60 Degree Sector 103.
Table 5-21: Install Main RF Cabling (Rear Wall of RF Cabinet) 104
Table 5-22: Install Main RF Cabling (Bottom of RF Cabinet) 105.
Table 5-23: Materials Required for Earth Ground Cabling 106. . . .
Table 5-24: Procedure to Install Earth Ground Cables 106. . . . . . . .
Table 5-25: Materials Required for Power Cabinet Alarm Cabling 109
Table 5-26: Power Cabinet Alarm Cable Install Procedure 109. . . .
Table 5-27: Pin–Out for Power Cabinet Punch Block 110. . . . . . . .
Table 5-28: Wire, Lug, and Die Table 111. . . . . . . . . . . . . . . . . . . .
Table 5-29: Procedure to Install DC Power Cables 112. . . . . . . . . .
Table 5-30: Equipment Required for AC Power 115. . . . . . . . . . . .
Table 5-31: Procedure to Install Power Cables 115. . . . . . . . . . . . . .
Table 5-32: Power Cabinet AC Current Requirements 116. . . . . . .
Figures
Figure 5-1: SC 4812ET Intercabinet I/O Detail (Rear View) 85. . .
Figure 5-2: SC4812ET Conduit I/O Panel Detail 85. . . . . . . . . . .
Figure 5-3: Overall Cable Diagram 86. . . . . . . . . . . . . . . . . . . . . .
Figure 5-4: Antenna Panel Detail (Rear View) 90. . . . . . . . . . . . . .
Figure 5-5: 50 Pair Punch Block 91. . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-6: Rubber I/O Boot Detail 93. . . . . . . . . . . . . . . . . . . . . .
Figure 5-7: SC 4812ET RF Cabinet 104. . . . . . . . . . . . . . . . . . . . . .
Figure 5-8: AC I/O Plate 107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figure 5-9: Power Cabinet Punch Block 108. . . . . . . . . . . . . . . . . .
Figure 5-10: Connecting Power Cables 111. . . . . . . . . . . . . . . . . . .
Figure 5-11: AC Load Center Wiring 116. . . . . . . . . . . . . . . . . . . . .
Overview
This chapter provides the SC 4812ET RF and Power Cabinet
inter-cabinet cabling procedures.
Review the Material
Before starting to install cables, it is recommended that you become
familiar with the equipment and the cable connection locations. You can
start by reviewing the information found in this chapter.
–Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious
personal injury can result.
–Before starting the procedure, ensure that the Power
Cabinet power cables are not connected to the main
source.
WARNING
–Static sensitive equipment requires that ESD
protective gear such, as a wriststrap, be used during
the installation and repair.
–A wriststrap is supplied with the installation hardware
and a jack is in the C–CCP Cage in the RF Cabinet
(See Figure 1-6).
CAUTION
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–A service tent [reference: Pelsue Cabinet Mounted
Service Tent; Pelsue (800–525–8460) P/N
CM564866M] must be in place prior to opening the
main doors of the SC4812ET RF or Power Cabinet
during times of inclement weather (rain, snow, sleet,
or hail). This will prevent moisture from being drawn
into the electronics by internal fans and damaging the
equipment.
–A service tent [reference: Pelsue Cabinet Mounted
Service Tent; Pelsue (800–525–8460) P/N
CM564866M] with a heater is required to service the
SC4812ET RF Cabinet when temperatures are below
–10 Deg C (14 Deg F). Temperatures inside the tent
should be above 0 Deg (32 Deg F) prior to opening
the main cabinet door. This will prevent a rapid
temperature change to the electronics that could result
in a site outage.
WARNING
Cabling Installation Order
Motorola recommends the RF and Power Cabinet inter-cabinet cabling
be installed in the order shown:
1. RF Cabinet Cabling
1. Earth Ground
2. Alarm, Span Line and Modem
3. RGPS cabling (if applicable)
4. RF GPS cabling (if applicable)
5. LFR Cabling (if applicable)
6. Main RF (RX/TX) path cabling
2. Power Cabinet Cabling
1. Earth Ground
2. Battery Cabling
3. Alarm Interconnect Cabling to RF Cabinet
4. DC Interconnect Cabling to RF Cabinet
5. AC Power Cabling
Cabinet I/O Area
The cabinet I/O area is used as a common point of connection for the
inter–cabinet cabling. See Figure 5-1 for an overview of the I/O area for
the SC 4812ET RF and Power Cabinet.
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Figure 5-1: SC 4812ET Intercabinet I/O Detail (Rear View)
RF CABINET
RF Expansion
Exp. Punch
Punch
Block
Block
27V
27V Ret
POWER CABINET
DC
Conduit
Microwave
RF GPS
LAN
2 Sec
Tick
19 MHz
Clock
DC
Conduit AC (out)
Conduit
(to Pilot Beacon)
AC (in)
Conduit
Punch
Block
AC Load
Center
27V Ret
27V
Ground Cable Lugs
(on side wall) Ground
Cable Lugs
(Inside
Panel)
1–3 Sector Antennas
4–6 Sector Antennas
Span/Alarm
Expansion 1
Expansion 2
RF GPS Pilot
Beacon
RGPS
Figure 5-2: SC4812ET Conduit I/O Panel Detail
Power Cabinet Conduit I/O PlatesRF Cabinet Conduit I/O Plates
2” Conduit
Hole
(Main AC)
1” Conduit Knockout
(Pilot Beacon AC)
3” Conduit
Hole (DC)
3” Conduit
Hole (DC)
PG11 Conduit
Knockout
(RGPS Fitting)
1” Conduit
Knockouts (x6)
(Expansion, I/O,
Alarms, Other)
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Simplified BTS Cabling
Diagram
The overall cabling is shown in a simplified diagram Figure 5-3. Each
cable is identified with a capital letter followed by a number. The letter
refers to the cable label as described in Table 5-1, the number refers to
the quantity of cables to be installed. Refer to this diagram when
performing the cable connection procedures in the following tables.
Figure 5-3: Overall Cable Diagram
E (3)
F (3)
H (1)
H (1)
Power Cabinet
D (1)
G (1)
I (See Note)
B (1)
A (1)C (1)
50 PIN
PUNCH
BLOCK
25 PIN
PUNCH
BLOCK
ACLC
DRDC
J (1)
RF Cabinet
RGPS ANTENNA
(IF APPLICAPLE)
RF GPS ANTENNA
(IF APPLICAPLE)
K (1)
LFR ANTENNA
(IF APPLICAPLE)
The quantity of RF Antenna cables (I) is determined by
system configuration.
NOTE
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Cable descriptions
Table 5-1 lists the RF and Power Cabinet cable description and part
numbers. The cable label is used as a reference for all the cabling
procedures and diagrams.
Table 5-1: BTS Cable Descriptions and Part Numbers
Cable
Label Part Number Description
ACustomer Supplied
T1 Span Line(s) and Modem Cable #24 or #22 AWG, 26-wire, shielded
twisted 13 pair, 100-Ohm, solid wire; nominal line rate at 1.544 Mbit/s.
For E1: use 120–Ohm twisted pairs; nominal line rate at 2.048 Mbit/s
NOTE
The modem lines pair (2–wire) and Span Line pairs can be run on a separate
cables if more appropriate for the installation.
BCustomer Supplied Alarm (Customer I/O) Cable #24 or #22 AWG, 32-wire, shielded twisted 16
pair, 100-Ohm, solid wire.
T472AA RGPS Cable and Antenna Package, 50 Ft. Cable*
T472AB RGPS Cable and Antenna Package, 125 Ft. Cable**
T472AC RGPS Cable and Antenna Package, 250 Ft.Cable**
T472AD RGPS Cable and Antenna Package, 500 Ft.Cable**
T472AE RGPS Cable and Antenna Package, 1000 Ft.Cable**
T472AF RGPS Cable and Antenna Package, 2000 Ft.Cable**
CT472AG RGPS Cable Only, 50 Ft. Cable*
T472AH RGPS Cable Only, 125 Ft. Cable**
T472AJ RGPS Cable Only, 250 Ft.Cable**
T472AK RGPS Cable Only, 500 Ft.Cable**
T472AL RGPS Cable Only, 1000 Ft.Cable**
T472AM RGPS Cable Only, 2000 Ft.Cable**
T472AN RGPS Antenna Only
D
Supplied with Power
Cabinet
3086039H17
Power Cabinet Alarm/Control Cable, 12–wire, shielded twisted 6 pair, solid
wire: 3650 mm (12 ft.) length.
NOTE
A longer alarm/Control cable (P/N 3086039H16) 10950 mm (36 ft.) is
available to order if needed.
ESupplied with Power
Cabinet
3064377A09
DC Power Cable (Quantity = 3), #2/0 AWG INS WELD cable (Red); 3650
mm (12 ft) length.
. . . continued on next page
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Table 5-1: BTS Cable Descriptions and Part Numbers
Cable
Label DescriptionPart Number
FSupplied with Power
Cabinet
3064377A10
DC Power Cable (Quantity = 3), #2/0 AWG INS WELD cable (Black); 3650
mm (12 ft) length.
GCustomer Supplied AC Power cable, Maximum Cable Size of 300 kcmil.
NOTE
The Power Cabinet is rated at 130 Amps (100 Amps continuous / 130 Amps
non–continuous, in the range of 208–240V AC) see Table 5-32 for details.
Maximum cable size that can be accommodated is 300 kcmil. Cabling sizing
should be determined by Local Electrical Codes, using 90°C rated
conductors, and derating for 50°C operation. Motorola recommends not less
than #2/0 AWG (#1 BSWG; 50 mm2) copper for buried/raceway cables to
the power pedestal, with an associated power pedestal breaker size of 150
Amps for one Power Cabinet.
HCustomer Supplied Ground Cable (Quantity 1 per cabinet), #3 BSWG (#2 AWG; 35 mm2)
ICustomer Supplied Antenna RF Cable, 50 Ohm coaxial, male N–type connector on one end,
customer to determine other end.
JSupplied in Kit
STAN4000A
RF GPS Cable, 1/2 inch coaxial, length=50 ft. Two male N–type connectors,
one end loose (to be field terminated after routing of cable through I/O
boot).
If lengths greater than 50 ft. are required, cable style and length should be
determined by site configurations. Maximum loss <4.5 dB @ 1575 MHz for
all cabling and connections between the GPS antenna and the RF Cabinet.
NOTE
A 1/2 inch cable “pigtail” should always be used to exit the cabinet before
transitioning to a larger cable. This will ensure a proper seal at the rubber
I/O boot. It is suggested that the supplier cable be cut to the desired length to
achieve this.
K CGDS3155A038 LFR Cable, 100 Ohm, 24 AWG, shielded twisted pair, 91.5 m (300 ft.) One
9–pin subminiature D connector and one 5–pin circular connector.
L 3086622H01
Options Power Cable, # 14 AWG; 820 mm (2.7 ft.) length
NOTE
This options power cable is shipped installed in sites that are factory
equipped with CSU options.
* Cable – 12 conductor, shielded, twisted pair, 22 AWG, solid. Insulation – PVC (–40 to +60°C)
** Cable – 12 conductor, shielded, twisted pair, 22 AWG, solid. Insulation – FEP Teflon (–40 to +125°C)
Plenum rated
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RF Cabinet Earth
Ground
The objective of this procedure is to install the RF Cabinet earth ground
cabling.
Materials needed
Table 5-2 lists the quantity and description of the necessary materials.
Table 5-2: Materials Required for Earth Ground Cabling
Cable Qty Description
H 1 Ground cable, #3 BSWG (#2–AWG; 35 mm2),
insulated copper wire. Customer supplied cable.
Compression
Lug
2909780203
1Two hole lug to attach to the RF Cabinet end of the
cable. (This part is supplied with the installation
hardware).
Procedure
Follow the procedures in Table 5-3 to install the earth ground cable.
Table 5-3: Procedure to Install RF Cabinet Earth Ground Cables
Step Action
1Route the ground cable (H) into the I/O area of the RF Cabinet
through the slot in the RF I/O area cover panel. Refer to Figure 5-4
for recommended location.
NOTE
–Ground cables should maintain a bend radius of 200 mm (8”) or
larger.
–This step is omitted if the ground wire is already in place and
entering the cabinet through the concrete pad.
2Strip insulation from the RF Cabinet end of the cable.
3Attach the two hole ground lug supplied with the installation
hardware to the stripped end of the cable. Use the proper crimp tool
(CGDSTBM25S or equivalent).
4Connect the two hole lug to the back of the RF Cabinet (see
Figure 5-1 for location) and secure with the two M6 nuts and flat
washers supplied with the installation hardware. Torque to 5 N–m (45
in–lbs.).
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Figure 5-4: Antenna Panel Detail (Rear View)
Route Ground
Cable Through
This Slot.
RF Cabinet Alarm, Span Line
and Modem Cabling
The objective of this procedure is to install the RF Cabinet alarm ,span
line and modem cabling.
Use only 110 style punch block punch tool to terminate
wires at punch block (ref: P/N CGDS237744 or
equivalent).
WARNING
Input and Output
Cabling
Figure 5-5 details the location of the punch block, the input and output
pin identification, wire pair identification, and how the wires are inserted
for termination.
To ensure protection from surges, ground connection is
required before connecting any incoming telecom lines.
CAUTION
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Figure 5-5: 50 Pair Punch Block
TOP VIEW OF PUNCH BLOCK
STRAIN RELIEVE INCOMING
CABLE TO BRACKET WITH
TIE WRAPS
1T
2T
1T 1R 2T 2R
12
1R
2R
LEGEND
1T = PAIR 1 – TIP
1R = PAIR 1 –RING
” ”
” ”
” ”
RF Cabinet I/O Area
(I/O Boots Not Shown)
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Materials needed
Table 5-4 lists the quantity and description of the necessary materials.
Table 5-4: Materials Required for Alarm, Span, and Modem Cabling
Cable Qty Description
A 1 T1 Span Line and Modem Cable, #22 or #24 AWG,
26-wire, shielded twisted 13 pair, 100-Ohm, solid wire. E1
Span Line requires 120–Ohm twisted pair lines.
NOTE
The modem lines (2–wire, 1 pair) can be run on a separate cable from the
Span Lines if more appropriate for the installation.
B 1 Alarm (Customer I/O) Cable, #22 and #24 AWG, 32-wire,
shielded twisted 16 pair, 100-Ohm, solid wire.
Procedure
Refer to Table 5-4 and Figure 5-6 and follow the procedures in Table 5-5
to install the Alarm, Span, and Modem Line cabling.
Table 5-5: Alarm, Span, and Modem Line Cable Install Procedure
Step Action
1Route the conduits for the twisted pair cables (A, B) to the I/O area of
the RF Cabinet. Refer to Figure 5-1 and Figure 5-2 for recommended
location.
NOTE
This step is omitted if the conduits are already in place in the concrete
pad.
2Route the twisted pair cable(s) (A, B) through the previously installed
conduits and to the punch block through the rubber boot in the floor
of the I/O area (See Figure 5-6).
NOTE
The rubber boot is sized to seal a cable with an outer diameter of
either 1/4” or 1/2”, if a different sized cable is used heat/cold shrink or
other means may be required to ensure a good seal. A tie wrap or
hose clamp must be used to ensure a good seal around the cables at
the boot.
3Connect the Alarm, Span, and Modem Line pairs from the cable to
the punch block (using only the recommended 110 style punch tool
per the pin call–outs in Table 5-7.
4Strain relief the cables (A, B) by tie wrapping it to the punch block
mounting bracket as shown in Figure 5-5.
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Figure 5-6: Rubber I/O Boot Detail
I/O Boot (RF Cabinet Only)
Tie Wrap Here
For 1/2” Cable
Cut Here
For 1/2”
Cable
Cut Here
For 1/4”
Cable
Tie Wrap
Here For
1/4” Cable
Used for LAN cables
(Expansion)
Power I/O Boot (RF and Power Cabinet)
Cut Here For
1/2” Cable
Cut Here For
1/4” Cable
Tie Wrap Here
For 1/4” Cable
Cut Here For
#2/0 AWG Cable
Tie Wrap Here For
#4/0 AWG Cable
Cut Here For
#4/0 AWG Cable
Tie Wrap Here For
#2/0 AWG Cable
Tie Wrap Here
For 1/2” Cable
Used for Power
Cabinet Alarm
Cable (D)
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Alarm Signal
Specifications
Function
ALARM connections provide Customer Defined Alarm Inputs and
Outputs. The customer can connect RF Cabinet site alarm input sensors
and output devices to the RF Cabinet, thus providing alarm reporting of
active sensors as well as controlling output devices.
Connections
Table 5-6 describes the characteristics and requirements for the inputs
(each of which consists of a single 2–wire pair) and outputs (each of
which consists of two 2–wire pairs; COM–NC and COM–NO).
Table 5-6: External Alarm Connector Characteristics and Requirements
Inputs Outputs
To ensure proper operation, each wire pair to be used
must be connected to an external transducer that
provides a dry contact.
–A closed contact including cable resistance must
be 1K ohms or less.
–An open contact including cable leakage must be
50K ohms or greater.
Either of the above states can be defined by the
customer in system software as an alarm condition.
The customer output device control inputs connect
between the common (COM) and either the normally
closed (NC) or normally open (NO) contacts of a
relay.
–Relay contacts are load rated for a maximum of
1A @ 30V DC and 1A @ 30V AC resistive.
The toggling of the relay contacts to the opposite
state is controlled by system software.
Alarm and Span Line Cable
Pin/Signal Information
Table 5-7 lists the complete pin/signal identification for the 50–pin
punch block.
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Table 5-7: Pin–Out for 50 Pin Punch Block
Signal Name Pin Color Signal Name Pin Color
Power Cab Control – NC 1T Blue PCustomer Outputs 4 – NO 18R
Power Cab Control – NO 1R Blk/Blue OCustomer Outputs 4–COM 19T I
Power Cab Control – Com 2T Yellow WCustomer Outputs 4 – NC 19R N
Reserved 2R N/C ECustomer Inputs 1 20T P
Rectifier Fail 3T Blk/Yello RCust_Rtn_A_1 20R U
AC Fail 3R Green Customer Inputs 2 21T T
Power Cab Exchanger Fail 4T Blk/Grn CCust_Rtn_A_2 21R /
Power Cab Door Alarm 4R White ACustomer Inputs 3 22T O
Power Cab Major Alarm 5T Blk/Whit BCust_Rtn_A_3 22R U
Battery Over Temp 5R Red ICustomer Inputs 4 23T T
Power Cab Minor Alarm 6T Blk/Red NCust_Rtn_A_4 23R P
Reticifier Over Temp 6R Brown ECustomer Inputs 5 24T U
Power Cab Alarm Rtn 7T Blk/Brn TCust_Rtn_A_5 24R T
LFR_HSO_GND 7R LCustomer Inputs 6 25T
EXT_1PPS_POS 8T FCust_Rtn_A_6 25R
EXT_1PPS_NEG 8R RCustomer Inputs 7 26T
CAL_+ 9T /Cust_Rtn_A_7 26R
CAB_–9R HCustomer Inputs 8 27T
LORAN_+ 10T SCust_Rtn_A_8 27R
LORAN_–10R OCustomer Inputs 9 28T
Pilot Beacon Alarm – Minor 11T BCust_Rtn_A_9 28R
Pilot Beacon Alarm – Rtn 11R ECustomer Inputs 10 29T
Pilot Beacon Alarm – Major 12T ACust_Rtn_A_10 29R
Pilot Beacon Control – NO 12R CRVC_TIP_A 30T
Pilot Beacon Control–COM 13T ORVC_RING_A 30R S
Pilot Beacon Control – NC 13R NXMIT_TIP_A 31T P
Customer Outputs 1 – NO 14T CXMIT_RING_A 31R A
Customer Outputs 1 – COM 14R URVC_TIP_B 32T N
Customer Outputs 1 – NC 15T SRVC_RING_B 32R
Customer Outputs 2 – NO 15R TXMIT_TIP_B 33T
Customer Outputs 2 – COM 16T OXMIT_RING_B 33R
Customer Outputs 2 – NC 16R MRVC_TIP_C 34T
Customer Outputs 3 – NO 17T ERVC_RING_C 34R
Customer Outputs 3 – COM 17R RXMIT_TIP_C 35T
Customer Outputs 3 – NC 18T
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Pin–Out for 50 Pin Punch Block (Continued)
XMIT_RING_C 35R GPS_POWER_1+ 42T Blue
RVC_TIP_D 36T SGPS_POWER_1–42R Bk/Blue R
RVC_RING_D 36R PGPS_POWER_2+ 43T Yellow G
XMIT_TIP_D 37T AGPS_POWER_2–43R Bk/Yello P
XMIT_RING_D 37R NGPS_RX+ 44T Green S
RVC_TIP_E 38T GPS_RX–44R Bk/Grn
RVC_RING_E 38R GPS_TX+ 45T White
XMIT_TIP_E 39T GPS_TX–45R Bk/White
XMIT_RING_E 39R Signal Ground (TDR+) 46T Red
RVC_TIP_F 40T Master Frame (TDR–) 46R Bk/Red
RVC_RING_F 40R GPS_lpps+ 47T Brown
XMIT_TIP_F 41T GPS_lpps–47R Bk/Brn
XMIT_RING_F 41R Telco_Modem_T 48T
Telco_Modem_R 48R
Chasis Ground 49T
Reserved 49R, 50T, 50R
RGPS Cabling
Introduction
The objective of this procedure is to install the RF Cabinet Remote
Global Positioning System receiver (RGPS) antenna cabling.
The cable between the RF Cabinet and the RGPS head is 22 AWG
12–conductor wire configured as six twisted pairs. Power for the RGPS
head is provided by the cabinet via the the 12–conductor cable.
This procedure assumes that the RGPS receiver has been
installed, and the cable routed to the BTS site. For
instructions to install the RGPS receiver see Appendix A.
NOTE
Materials needed
Table 5-8 lists the quantity and description of the necessary materials.
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Table 5-8: Materials Required for RGPS Cabling
Cable Qty Description
T472AA RGPS Cable and Antenna Package, 50 Ft. Cable*
T472AB RGPS Cable and Antenna Package, 125 Ft. Cable**
T472AC RGPS Cable and Antenna Package, 250 Ft. Cable**
T472AD RGPS Cable and Antenna Package, 500 Ft. Cable**
T472AE RGPS Cable and Antenna Package, 1000 Ft. Cable**
CT472AF RGPS Cable and Antenna Package, 2000 Ft.*Cable*
C
T472AG RGPS Cable Only, 50 Ft. Cable*
T472AH RGPS Cable Only, 125 Ft. Cable**
T472AJ RGPS Cable Only, 250 Ft.Cable**
T472AK RGPS Cable Only, 500 Ft.Cable**
T472AL RGPS Cable Only, 1000 Ft.Cable**
T472AM RGPS Cable Only, 2000 Ft.Cable**
T472AN RGPS Antenna Only
* Cable – 12 conductor, shielded, twisted pair, 22 AWG, solid. Insulation – PVC (–40 to +60°C)
** Cable – 12 conductor, shielded, twisted pair, 22 AWG, solid. Insulation – FEP Teflon
(–40 to +125°C) Plenum rated
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Installation Procedure
Table 5-9 details the step–by–step procedure on installing the RGPS
cabling.
Table 5-9: RGPS Cable Install Procedure
Step Action
1Route the twisted pair cable through the previously installed conduit to the RF Cabinet I/O area, and
to the punch block through the rubber boot in the floor of the I/O area (See Figure 5-6). Refer to
Figure 5-1 for the recommended locations.
NOTE
The rubber boot is sized to seal a cable with an outer diameter of either 1/4” or 1/2”, if a different
sized cable is used heat/cold shrink or other means may be required to ensure a good seal. A tie wrap
or hose clamp must be used to ensure a good seal around the cables at the boot.
2Connect the RGPS pairs from the cable to the punch block (using only the recommended 110 style
punch tool CGDS237744 or equivalent) per the pin call–outs in Table 5-10.
3Strain relief the cable by tie wrapping it to the punch block mounting bracket as shown in Figure 5-5
The RGPS cable is comprised of 6 twisted pairs of wires.
For proper RGPS operation, each BLACK wire in this
cable is unique and must be paired with it’s proper mate.
NOTE
Punch Block for the Remote GPS (RGPS)
Table 5-10: Punch Block for the Remote GPS
Punch Block
Pin Number Signal Name Wire Color
42T GPS_POWER_1+ BLUE
42R GPS_POWER_1–BLACK/BLUE
43T GPS_POWER_2+ YELLOW
43R GPS_POWER_2–BLACK/YELLOW
44T GPS_RX+ WHITE
44R GPS_RX–BLACK/WHITE
45T GPS_TX+ GREEN
45R GPS_TX–BLACK/GREEN
46T TDR+ RED
46R TDR–BLACK/RED
47T GPS_1pps+ BROWN
47R GPS_1pps–BLACK/BROWN
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RF GPS Cabling (if applicable)
The objective of this procedure is to install the RF GPS antenna cabling.
Materials Needed
Table 5-11 lists the quantity and description of the necessary materials.
Table 5-11: Materials Required for RF GPS Cabling
Cable Part Number Description
JSupplied in Kit
STAN4000A
RF GPS Cable, 1/2 inch coaxial, length=50 ft. Two male N–type connectors,
one end loose (to be field terminated after routing of cable through I/O boot).
If lengths greater than 50 ft. are required, cable style and length should be
determined by site configurations. Maximum loss <4.5 dB @ 1575 MHz for all
cabling and connections between the GPS antenna and the RF Cabinet.
NOTE
A 1/2 inch cable “pigtail” should always be used to exit the cabinet before
transitioning to a larger cable. This will ensure a proper seal at the rubber I/O
boot. It is suggested that the supplier cable be cut to the desired length to
achieve this.
RF GPS Cabling
Procedure
Follow the procedures in Table 5-12 to install the RF GPS cabling.
Table 5-12: RF GPS Cable Install Procedure
Step Action
1Route the conduit (if applicable) for the cable (J) to the I/O area of the RF Cabinet. Refer to Figure 5-1
for recommended location.
NOTE
This step is omitted if the conduits is already in place in the concrete pad.
2Route loose end of cable (J) from RFGPS Antenna through the previously installed conduit (if
applicable) and through the rubber boot in the floor of the I/O area (See Figure 5-6).
NOTE
The rubber boot is sized to seal a cable with an outer diameter of either 1/4” or 1/2”, if a different
sized cable is used heat/cold shrink or other means may be required to ensure a good seal. A tie wrap
or hose clamp must be used to ensure a good seal around the cables at the boot.
3Terminate the loose male N–type connector to the loose end of the cable, and connect to RFGPS N
connector (see Figure 5-1).
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LFR Cabling (if applicable)
The objective of this procedure is to install the LFR antenna cabling.
Materials Needed
Table 5-13 lists the quantity and description of the accessary materials
for cabling the LFR.
Table 5-13: Materials Required for LFR Cabling
Cable Qty Part Number Description
K 1 CGDS315SA038 Cable, 100 Ohm, #24 AWG, shielded twisted pair, 91.5 m (300 ft.) One
9–pin subminiature D connector and one 5–pin circular connector.
1Wire Cutters
LFR Cabling Procedure
Table 5-14 details the step–by–step procedure on installing the LFR
cabling.
Table 5-14: LFR Cable Install Procedure
Step Action
1Using the wire cutters, cut off the 5–pin circular connector.
2Connect the 9 pin D connector to the LFR antenna, route the twisted pair cable through the previously
installed conduit from the LFR antenna to the RF Cabinet I/O area, and to the punch block through the
rubber boot in the floor of the I/O area (See Figure 5-6). Refer to Figure 5-1 for the recommended
locations.
NOTE
The rubber boot is sized to seal a cable with an outer diameter of either 1/4” or 1/2”, if a different
sized cable is used heat/cold shrink or other means may be required to ensure a good seal. A tie wrap
or hose clamp must be used to ensure a good seal around the cables at the boot.
3Connect the LFR pairs from the cable to the punch block (using only the recommended 110 style
punch tool CGDS237744 or equivalent) per the pin call–outs in Table 5-15.
Strain relief the cable by tie wrapping it to the punch block mounting bracket as shown in Figure 5-5
LFR Cable Pin/Signal Information
Table 5-15 presents the pin/signal information for the LFR cable. This
information applies to the standard LFR cable.
Table 5-15: Pin/Signal Information for LFR Cable
5 Pin Cicular
Connector Pin Punchblock
Pin Number Description Wire Color
D 10T Antenna+ (Power and Signal) Red
E 10R Antenna– (Power and Signal) Black (Paired with Red)
. . . continued on next page
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Table 5-15: Pin/Signal Information for LFR Cable
5 Pin Cicular
Connector Pin Wire ColorDescriptionPunchblock
Pin Number
A 9T Calibrator+ White
B 9R Calibrator–Black (Paired with White)
C 7R Drain From Shield Bare
RF Cabling Introduction
This section supports the RF cabling for the following configurations:
Table 5-16: BTS Sector/Carrier Configurations
Number of Sectors Number of Carriers
3 / 6 1
3 / 6 2
3 3
3 4
BTS Configurations
The antenna connections for a three (3) duplexed 120° sector
configuration are:
Table 5-17: Antenna Cables for Duplexed 120 Degree
Sector
Antenna # RX/TX
1A RX1A/TX1A (Main)
2A RX2A/TX2A (Main)
3A RX3A/TX3A (Main)
1B RX1B/TX1B (Diversity)
2B RX2B/TX2B (Diversity)
3B RX3B/TX3B (Diversity)
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The antenna connections for a six (6) Duplexed 60° sector configuration
are:
Table 5-18: Antenna Cables for Duplexed 60 Degree
Sector
Antenna # RX/TX
1A RX1A/TX1A (Main)
2A RX2A/TX2A (Main)
3A RX3A/TX3A (Main)
1B RX1B/TX1B (Diversity)
2B RX2B/TX2B (Diversity)
3B RX3B/TX3B (Diversity)
4A RX4A/TX4A (Main)
5A RX5A/TX5A (Main)
6A RX6A/TX6A (Main)
4B RX4B/TX4B (Diversity)
5B RX5B/TX5B (Diversity)
6B RX6B/TX6B (Diversity)
The antenna connections for a three (3) Non–Duplexed 120 degree sector
configuration are shown in Table 5-19.
Table 5-19: Antenna Cables for Non–Duplexed 120 Degree Sector
Antenna # RX/TX
1A RX1A (Main)
2A RX2A (Main)
3A RX3A (Main)
RX 1B RX1B (Diversity)
2B RX2B (Diversity)
3B RX3B (Diversity)
1A TX1A (Main)
2A TX2A (Main)
3A TX3A (Main)
TX 1B TXIB
2B TX2B
3B TX3B
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The antenna connections for a three (3) Non–Duplexed 120 degree sector
configuration are shown in Table 5-19.
Table 5-20: Antenna Cables for Non–Duplexed 60 Degree Sector
Antenna # RX/TX
1A RX1A (Main)
2A RX2A (Main)
3A RX3A (Main)
4A RX4A (Main)
5A RX5A (Main)
RX 6A RX6A (Main)
1B RX1B (Diversity)
2B RX2B (Diversity)
3B RX3B (Diversity)
4B RX4B (Diversity)
5B RX5B (Diversity)
6B RX6B (Diversity)
1A TX1A (Main)
2A TX2A (Main)
3A TX3A (Main)
4A TX4A (Main)
5A TX5A (Main)
TX6A TX6A (Main)
1B TX1B
2B TX2B
3B TX3B
4B TX4B
5B TX5B
6B TX6B
RF Main and RF Path
Cabling
This procedure is used to install the RF Cabinet Main RF path cabling.
The Main antenna connections are N–Female type.
NOTE
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Cable Labels
The cable designations in Table 5-21 and Table 5-22 are referenced to
Figure 5-7.
Figure 5-7: SC 4812ET RF Cabinet
FW00474
1 OUT 2 OUT 3 OUT 1 IN 2 IN 3 IN
RX EXPANSION
1 OUT 2 OUT 3 OUT 1 IN 2 IN 3 IN
ANTENNA 1–3
4 OUT 5 OUT 6 OUT 4 IN 5 IN 6 IN
RX EXPANSION
4A 5A 4B 5B 6B
ANTENNA 4–6
6A
Remote
ASU
1
2
TX/RX
(TX)
(RX)
TX/RX
(TX)
(RX)
ANTENNA
Duplxed
(Non–duplxed)
Non–Duplxed
Receive
Connection
Procedure for Rear
Installation
Refer to Figure 5-7 and follow the procedures in Table 5-21 to install the
Main RF antenna cables through the rear wall of the RF Cabinet.
Table 5-21: Procedure to Install the Main RF Cabling through the Rear Wall of the RF Cabinet
Step Action
1Remove the panel that covers the RF I/O area (see Figure 5-7).
2Connect the Main RF antenna cables (I) to the bulkhead connectors on the rear wall of the RF Cabinet,
making sure to connect the correct antenna cable to the correct DRDC or TRDC (see Table 5-17 for a
three (3) sector configuration and see Table 5-18 for a six (6) sector configuration).
NOTE
Antenna RF Cables should be strain relieved, RF I/O area cover panel is NOT replaced.
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All antenna RF cabling should be protected with ice
bridge.
NOTE
Procedure for Bottom
Installation
Refer to Figure 5-7 and follow the procedures in Table 5-22 to install the
Main RF antenna cable through the bottom of the RF Cabinet.
Table 5-22: Procedure to Install the Main RF Cabling through the Bottom of the RF Cabinet
Step Action
1Remove the panel that covers the RF I/O area (see Figure 5-7).
2Route the Main RF antenna (I) cables through the bottom of the RF Cabinet.
NOTE
If conduit is not used, cables must be strain relieved.
3Connect the Main RF antenna cables (I) to the bulkhead connectors on the rear wall of the RF Cabinet,
making sure to connect the correct antenna cable to the correct DRDC or TRDC (see Table 5-17 for a
three (3) sector configuration and see Table 5-18 for a six (6) sector configuration).
4Replace the RF I/O area cover panel if desired.
The bend radius of the RF cables is restricted when
installed through the bottom of the cabinet.
NOTE
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Power Cabinet Earth
Ground
The objective of this procedure is to install the Power Cabinet earth
ground cabling.
Materials needed
Table 5-23 lists the quantity and description of the necessary materials.
Table 5-23: Materials Required for Earth Ground Cabling
Cable Qty Description
H 1 Ground cable, #3 BSWG (#2–AWG; 35 mm2), insulated copper wire.
Customer supplied cable.
Compression Lug
2909780203
1Two hole lug to attach to the Power Cabinet end of the cable. (This part is
supplied with the installation hardware).
Procedure
Follow the procedures in Table 5-24 to install the earth ground cable.
Table 5-24: Procedure to Install Earth Ground Cables
Step Action
1Route the ground cable (H) into the I/O area of the Power Cabinet through the slot in the right cover
panel. Refer to Figure 5-8 for recommended location.
NOTE
Ground cables should maintain a bend radius of 200 mm (8”) or larger.
NOTE
This step is omitted if the ground wire is already in place and entering the cabinet through the concrete
pad.
2Strip insulation from the Power Cabinet end of the cable.
3Attach the two hole ground lug supplied with the installation hardware to the stripped end of the cable.
Use the proper crimp tool (CGDSTBM25S or equivalent).
4Connect the two hole lug to the back of the Power Cabinet (see Figure 5-1 for location) and secure
with the two M6 nuts supplied with the installation hardware. Torque to 5 N–m (45 in–lbs.).
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Figure 5-8: AC I/O Plate
Route Ground
Cable Through
This Slot
Power Cabinet Alarm Cable
The objective of this procedure is to install the Power Cabinet alarm
cabling. This cable runs from the Power Cabinet to the RF Cabinet. It
can be run in the 3” DC Conduit.
Power Cabinet Punch
Block
Figure 5-9 details the location of the punch block, the input and output
pin identification, wire pair identification, and how the wires are inserted
for termination.
To ensure protection from surges, ground connection is
required before connecting any incoming lines.
CAUTION
Use only 110 style punch block punch tool to terminate
wires at punch block (ref: P/N CGDS237744 or
equivalent).
WARNING
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Figure 5-9: Power Cabinet Punch Block
SURGE PROTECTORS
TOP VIEW OF PUNCH BLOCK
STRAIN RELIEVE INCOMING
CABLE TO BRACKET WITH
TIE WRAPS
TWISTED PAIR
CABLE (D)
1T
2T
1T 1R 2T 2R
01
06
11
16
21
05
10
15
20
25
12
1234 51 23 45
6 7 8 9 10 6 7 8 9 10
11 12 13 14 15 11 12 13 14 15
16 17 18 19 20 16 17 18 19 20
21 22 23 24 25 21 22 23 24 25
(IN) (OUT )
1R
2R
GND
LEGEND
1T = PAIR 1 – TIP
1R = PAIR 1 –RING
” ”
” ”
” ”
OSP CPE
Power Cabinet I/O Area
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Materials needed
Table 5-25 lists the quantity and description of the necessary materials.
Table 5-25: Materials Required for Power Cabinet Alarm Cabling
Cable Qty Description
D
3086039H17
1
Power Cabinet Alarm/Control Cable (length=12ft.), 12–wire,
shielded twisted 6 pair, solid wire.
NOTE
If the 12 ft. cable is does not meet site requirements a longer
cable can be ordered using part number 3086039H16.
Power Cabinet Alarm Cabling
Procedures
Refer to Figure 5-9 and Figure 5-10, and follow the procedures in
Table 5-26 to install the Power Cabinet Alarm cabling.
Table 5-26: Power Cabinet Alarm Cable Install Procedure
Step Action
1Route the conduit for the twisted pair cable (D) from the I/O area of the Power Cabinet to the I/O area
of the RF Cabinet.
NOTE
This cable should share the same conduit used for the DC Power Cabling 3” trade size conduit is
recommended for the DC cables shipped with the Power Cabinet. Refer to Figure 5-4 for
recommended location.
NOTE
This step is omitted if the conduit is already in place in the concrete pad.
2Route the twisted pair cable (D) through the previously installed conduits and to the punch block
through the rubber boot in the floor of each I/O area (See Figure 5-6).
NOTE
The rubber boot is sized to seal a cable with an outer diameter of either 1/4” or 1/2”, if a different
sized cable is used heat/cold shrink or other means may be required to ensure a good seal. A tie wrap
or hose clamp must be used to ensure a good seal around the cables at the boot.
3Connect the pairs from the cable to the punch blocks in both the RF and Power Cabinet (using only
the recommended 110 style punch tool CGDS237744 or equivalent).
4Strain relief the cable (D) by tie wrapping it to the punch block mounting bracket as shown in
Figure 5-9 (Power Cabinet) and Figure 5-5 (RF Cabinet).
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Power Cabinet Alarm Cable
Pin/signal Information
See Table 5-27 for complete pin/signal information.
Table 5-27: Pin–Out for Power Cabinet Punch Block
RF Cabinet Punch Block
Pin Location Signal Wire Color Power Cabinet Punch
Block Pin Location
1T Control (NO) Blue 1T
1R Control (NC) Blk/Blue 1R
2T Control (Com) Yellow 2T
3T Rectifier Fail Blk/Yellow 3T
3R AC Fail Green 4T
4T Exchanger Fail Blk/Green 5T
4R Door Alarm White 6T
5T Major Alarm Blk/White 7T
5R Battery Overtemp Red 8T
6T Minor Alarm Blk/Red 9T
6R Rectifier Overtemp Brown 10T
7T Alarm Return Blk/Brown 11R
DC Power Interconnect to RF
Cabinet
The objective of this procedure is to connect the DC power cabling to
the RF Cabinet from the Power Cabinet.
ALL power must be removed from the system until all
connections are made to both the RF and Power Cabinet.
Ensure that all breakers in both the RF and Power Cabinet
are turned in the “OFF” (opened) position.
WARNING
Tools and equipment required
The following tools are required to install the power cables:
–Thomas & Betts TBM14 Hydraulic crimping tool with color keyed
crimp die set (or equivalent). Contact Thomas & Betts for
information concerning equivalent tools.
–17 mm socket
–Torque wrench capable of 110 in–lbs
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Table 5-28: Wire, Lug, and Die Table
Wire Size Color and Die
Motorola Part Number
for Lugs AWG Metric (mm) Welding
(Superflex) Circular
Mills Area
Code
CGDS256306951514 2/0 AWG 60–70 1/0 133,400 BLACK 45
CGDS256306951539 3/0 AWG 85–95 2/0 167,800 ORANGE 50
CGDS256306951515 4/0 AWG 100–107 3/0 211,600 PURPLE 54
CGDS256306951540 N/A N/A 4/0 250,000 YELLOW 62
Power Input Connections
Figure 5-10 shows how the power cable is connected to the RF and
Power Cabinet. Figure 5-1 (on page 85) shows the location of the DC
power connector in the RF Cabinet and Power Cabinet.
Figure 5-10: Connecting Power Cables
CABLE
GROMMET
LUG COVER
M10 NUT (17 mm Hex
Driver Required)
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
FEED COVER
(Do not remove)
ENCLOSURE
BASE
POWER
INPUT
STUD
Route the cables through the rubber boot BEFORE
crimping lug onto wire or damage to the boot can occur.
CAUTION
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Procedure
Do NOT wear a wrist strap when servicing the power sup-
plies or power distribution cabling. Serious personal injury
can result.
WARNING
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
CAUTION
Follow the procedure in Table 5-29 to install the DC power cables (refer
to Figure 5-10 and Figure 5-1).
Table 5-29: Procedure to Install DC Power Cables
Step Action
1Ensure that all three (3) main DC breakers in the Power Cabinet are “OFF.”
2Route the DC conduit from the I/O area of the Power Cabinet to the I/O area of the RF Cabinet. See
Figure 5-1 for suggested location.
NOTE
This step is omitted if the DC conduit is already installed through the concrete pad.
3Route the three (3) RED +27V feed power cables through the conduit and to the DC power connector
in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
4Route the three (3) BLACK –27V feed power cables through the conduit and to the DC power
connector in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
5At the RF Cabinet end of each DC power cable, strip insulation equal to the length of the crimping lug
barrel, plus an additional 5 mm (0.2”).
! CAUTION
Route the cables through the rubber boot BEFORE crimping lug onto wire or damage to the boot can
occur.
6Trim the top (tapered end) of the cable grommet to allow the grommet to slide over the cable. Ensure
that the grommet fits firmly around the cable.
. . . continued on next page
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Table 5-29: Procedure to Install DC Power Cables
Step Action
7Slide one cable grommet over each cable at the connector box.
8Insert the cable into the barrel of the right angle crimp lug.
9Crimp the lug to the cable.
10 Repeat steps 8–9 for the remaining power cable(s).
NOTE
Be sure to observe the polarity of each cable as you install the cables to the power input studs on the
RF Cabinet.
11 Assemble the power cable to the studs as follows:
11a –Place the cable lugs over the power input studs.
11b –Place the M10 flat washer over the stud and on top of the lug.
11c –Place the M10 lock washer over the stud and on top of the flat washer.
11d –Place the M10 nut over the stud and on top of the washer.
! CAUTION
Exceeding the torque limit may damage the stud.
11e –Torque (tighten) nuts to 11–12 N–m (100–110 in–lbs).
12 Repeat steps 11a through 11e for the remaining power cables.
13 Position the lug cover over the base and lock the cover (it will snap) onto the enclosure base.
14 Slide each grommet down the cable and over the cable entry hole.
15 Repeat step 5 through step 14 for the Power Cabinet connections.
16 Verify that DC polarity between the RF and Power Cabinet is correct.
AC Power Cabling
The objective of this procedure is to connect the 208–240 VAC power
cables to the Power Cabinet’s AC load center/breaker panel. Figure 5-11
shows where the AC wires are connected inside the ACLC.
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–Dangerous voltages are present that can cause serious
injury or death. AC power wiring must be installed by
qualified personnel only.
–High Leakage current. Earth ground connection is
essential before connecting the power supply. Ground
connection is also required before connecting any
incoming telecom lines to ensure protection from
surges.
CAUTION
The Power Cabinet is rated at 130 Amps (100 Amps
continuous / 130 Amps non–continuous, in the range of
208–240V AC see Table 5-32 for details). Maximum
cable size that can be accommodated is 300 kcmil.
Cabling sizing should be determined by Local Electrical
Codes, using 90°C rated conductors, and derating for
50°C operation. Motorola recommends not less than 2/0
AWG (#1 BSWG; 50 mm2) copper for buried/raceway
cables to the power pedestal, with an associated power
pedestal breaker size of 150 Amps for one Power Cabinet.
IMPORTANT
*
The AC power pedestal or meter should be provided with a breaker to
protect the cable from the pedestal to the Power Cabinet. The Power
Cabinet rating is 130A. A 150 A breaker is recommended, or as
appropriate for local electrical code.
The hole in the cabinet I/O panel is the proper size for a 2”
Trade size conduit fitting.
NOTE
AC Load Center
The AC Load Center (ACLC) is divided into two (2) compartments. The circuit breaker
compartment is accessible through the front of the Power Cabinet and contains all of the
AC circuit breakers. The rear compartment is accessible through the I/O area of the
Power Cabinet and contains all the connections for the AC Power Cabling to the Power
Cabinet.
Cable Labels
The cable designations are referenced to Table 5-1.
Equipment Needed
Table 5-30 provides the quantity and description of the necessary
equipment required for AC Power.
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Table 5-30: Equipment Required for AC Power
Item Description
GPower cable – Maximum: 300 kcmil.
NOTE
–This maximum is defined by the size wire that the AC Load Center will accept.
–Conduit: Moisture tight type.
–The hole in the cabinet I/O panel is the proper size for a 2” Trade Size conduit.
–Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious
personal injury may result.
–Power must be turned OFF at the power meter
breaker box. Serious personal injury may result.
WARNING
For North American models the SC 4812ET Power
Cabinet can only be connected to a split phase 240/120 V
3–wire plus ground supply, or 208 V 3–wire plus ground
supply. The voltage between either L1 and L2 to neutral
and ground CANNOT exceed 120 V. Connection of the
“wild” or “hot” leg (>200 V relative to neutral/ground) of a
delta supply will damage the SC 4812ET Power Cabinet.
Check that the voltage between either L1 and L2 to neutral
and ground does not exceed 120 V, before connecting to
the system.
CAUTION
Procedure
Use Table 5-31 to install the power cables.
Table 5-31: Procedure to Install Power Cables
Step Action
1Ensure the breaker box at the power meter is OFF.
2Open Power Cabinet lower rear I/O door.
3Open AC Load Center access panel.
4Route the AC power conduit either through the rear panel of the cabinet or through the base of the
cabinet to the ACLC.
5Route the 208–240 volt AC power wires from the power meter breaker box, through the AC power
conduit, through the rubber boot (See Figure 5-6), and to the AC load center (refer to Figure 5-6).
6Electrical connections must conform to local electrical construction standards.
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Ground MUST be connected first. Electric shock hazard
exists if any other sequence is used.
WARNING
Figure 5-11: International and North American AC Load Center Wiring
G
N
AC to Pilot Beacon
L2
L1
FW00475
L
N
G
NOTE:
L = Line
N = Neutral
G = Ground International AC Load Center
North American AC Load Center
NOTE:
L 1= Line 1
L 2= Line 2
N = Neutral
G = Ground
Power Cabinet AC Current
Requirements
Table 5-32 lists the number of sector–carrier AC current ratings for the
Power Cabinet.
Table 5-32: Power Cabinet AC Current Requirements
Number of Sector–Carriers1Number of Rectifiers Power Cabinet AC Current
Ratings2
3 3 60A (90A Non–Continuous)
6 4 71A (101A Non–Continuous)
9 5 86A (116A Non–Continuous)
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Table 5-32: Power Cabinet AC Current Requirements
Number of Sector–Carriers1Power Cabinet AC Current
Ratings2
Number of Rectifiers
12 6 100A (130A Non–Continuous)
1 To obtain this number multiply the number of sectors by the number of carriers (i.e., 6 sector, 2 carrier = 12
sector–carrier).
2 30A Non–continuous is for the GFCI outlets and the 15A Spare Breaker in the Power Cabinet
Heat Dissipation
The minimum heat dissipated to prevent condensation
inside the cabinet under the extremes of environmental
conditions is 110 Watts for the RF Cabinet and 110 Watts
for the Power Cabinet. This can be accomplished by
following the Initial Power Up procedures in the SC
4812ET ATP manual.
IMPORTANT
*
5
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Notes
5
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Chapter 6: What’s Next and Cleanup
This section includes... Introduction 119. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleanup the Site 119. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fill out Checklist 120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optimize the System 122. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table 6-1: Installation Completion Checklist 120. . . . . . . . . . . . . . .
Introduction
Before Optimization/ATP performed, complete the following
procedures:
–Clean up the site.
–Fill out the installation completion checklist.
Cleanup the Site
It is important that all shipping and installation materials to be discarded
be removed from the customer site. Return all tools to their proper place
and conduct a final inspection.
Remove Protective Covering
Remove any antistatic plastic or cloth sheeting that was used to cover the
equipment.
Pickup tools and leftover materials and debris
–Place all hand and power tools in the installation tool kit or other
appropriate place. Note any tools that need replacement, cleaning,
or adjustment.
–Place any leftover materials in a location specified by the site
manager.
–Remove any packing material.
–Ensure that all scrap materials have been removed from the site.
Environment
–Check that the power connections are tight.
. . . continued on next page
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–Check that all FRU modules and doors are closed and latched.
–Organize any items (manuals, materials, etc.) left on site and place
them in a location specified by the site manager.
Fill out Installation Completion
Checklist
After the site is cleaned up, fill out the installation completion checklist
(see Table 6-1) and make any necessary copies. Make copies of this
checklist as needed.
Date Hardware Installation Completed:
Site:
Master BTS Cabinet Serial Number(s):
Expansion BTS Cabinet Serial Number(s):
Checklist Completed By:
Checklist Reviewed By:
Table 6-1: Installation Completion Checklist
Status No. Item Notes
1Cabinets are bolted down with mounting bolts
properly torqued.
2Each cabinet has its own earth ground that is
connected to a proper site grounding system. Ground MUST be connected first.
3AC power cabling completed and checked by an
electrician and the AC breakers are “OFF”.
4DC power cabling between Power and RF cabinets
is installed and the DC breakers are “OFF”.
5Battery breakers are “OFF”.
6RX RF cables installed.
7TX RF cables installed.
8RF connections are properly sealed with tape.
9Span and Modem line cables installed.
10 RF cabinet alarm cable is installed.
. . . continued on next page
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Table 6-1: Installation Completion Checklist
Status NotesItemNo.
11 Power cabinet alarm cable is installed.
12 GPS antenna installed.
13 RGPS antenna cable installed.
14 RF connectors are properly torqued.
15 Power connections are properly torqued.
16 Batteries are installed, and all battery connections
are made with copper–based grease and properly
torqued.
17 Battery shelf retainers are fully seated.
18 Battery heater pads are properly connected.
19 RF cables are labeled the same at both ends.
20 Data cables labeled at both ends.
21 All cables dressed and tied
22 Installation and site specific manuals (log sheet) at
site.
23 Static wrist straps are present.
24 Check all FRUs to verify that they are secure: LPA,
EBA, etc.
25 LPA module cable connector (1/4 turn circular
connector) is fully seated.
26 Visual inspect all door gaskets and verify that front
and rear doors open and close properly
27 Eye bolts are removed and replaced with 5/8 in
bolts (supplied in the installation kit).
28 Install pad locks if desired.
29 Any deficiencies reported to the appropriate people.
30 Site cleaned, swept, and trash removed
31 NOTE
There must be a minimum of 110 Watts power
being dissipated inside the cabinet to prevent
condensation.
6
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Optimize the System
Optimize the system by following the procedures given in the
appropriate optimization manual.
6
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Appendix A: Installing RGPS
This section includes...
Introduction 123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Procedure 123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RGPS Mounting Considerations 125. . . . . . . . . . . . . . . . . . . . . . . .
Tables
Installing the RGPS 123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
Figure A-1 Remote GPS Mounting 124. . . . . . . . . . . . . . . . . . . . . .
Introduction
The objective of this procedure is to install the BTS Remote Global
Positioning System receiver (RGPS) antenna.
The cable between the BTS and the RGPS head is 22 AWG
12–conductor wire configured as six twisted pairs. Power for the RGPS
head is provided by the BTS via the 12–conductor cable, refer to Chapter
5 for details.
Installation Procedure
Table A-1 lists the procedures for installing the RGPS system.
Table A-1: Installing the RGPS
Step Action
1Determine the mounting location (see RGPS Mounting Considerations).
2Install the mounting brackets onto the RGPS location of choice. Use the appropriate mounting bolts
for mounting surface.
n WARNING
The structure of the wall should be verified by a qualified structural engineer for the weight of the
RGPS engine and mounting hardware or under adverse conditions for the installation area.
! CAUTION
Mounting the RGPS antenna and hardware to an inadequate wall structure and/or using inadequate
installment methods can result in serious injury.
. . . continued on next page
A
Installing RGPS
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Table A-1: Installing the RGPS
Step Action
3Insert the prepared cable into the pipe (see Figure A-1).
4Connect the RGPS head to the cable. To secure the connection, tighten the spinning connector flange
(located on the prepared cable) see Figure A-1.
5Insert the pipe into the threaded neck on the RGPS head and hand tighten firmly.
6Place the assembly into the mounting brackets and secure.
7Route the cable down to the RF cabinet.
8Install the cable into the punch block. The punch block pin locations for the cable are listed in Chapter
5.
Figure A-1: Remote GPS Mounting
CABLE TO PUNCH
BLOCK IN RF CABINET
WALL MOUNTING
BRACKETS (2)
CLAMP BRACKETS (2)
A
Installing RGPS
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RGPS Mounting
Considerations
The RGPS Head requires specific mounting considerations in order to
properly observe the GPS satellites.
–The mounting pipe for the RGPS Head should be mounted
vertically with less than five degrees (5°) of tilt.
–The RGPS Head needs to have a clear view of the sky, preferably to
within ten degrees (10°) of the horizon in all directions. The less
sky that can be observed the fewer the number of potential satellites
that can be tracked and hence the poorer the RGPS performance.
–For general operation, the RGPS Head needs to be able to
continuously track signals from at least four (4) GPS satellites. It is
theoretically possible to operate the BTS with only one GPS
satellite visible, however, operating in this mode it is not
recommended and requires an accurate site survey.
–Place the RGPS Head where RF obstructions of the sky are
minimized. The “sky” includes everything to within ten degrees
(10°) of the horizon in all directions. RF obstructions includes
buildings, towers, snow, foliage and debris.
–Separate the RGPS head from radiating sources. Excessive RF
energy can degrade the RGPS head’s ability to observe the GPS
satellites. The RGPS head receives on the GPS L1 frequency of
1575.42 MHz and has filters incorporated within to minimize the
effects of potential RF interference, however, strong radiaters can
overwhelm the filters, thus degrading the units reception capability.
–The RGPS Head is rated for ambient air temperatures from –40° C
to +50°C, and has ratings for Humidity, Shock, Waterproof, UV
Light Resistance, Vibrations, Salt, Fog, ESD, EMI, and Altitude.
–The RGPS system will support up to 2000 feet (2609 m) of overall
cable length from the RGPS Head to the last connected base station.
If a long cable run needs to be broken into pieces, minimize the
number of breaks in the cable.
A
Installing RGPS
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Notes
A
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Appendix B: Cabinet Specifications
This section includes... Overview 127. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Specifications 128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Ventilation Specifications 128. . . . . . . . . . . . . . . . . . . . . . . .
Grounding Specifications 128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Power Specifications 128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Power Specifications 129. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GFCI/AC Outlet Specifications 129. . . . . . . . . . . . . . . . . . . . . . . . .
Conduit I/O Plate Specifications 129. . . . . . . . . . . . . . . . . . . . . . . .
Battery Configuration Specifications 130. . . . . . . . . . . . . . . . . . . . .
Conduit Layout Specifications 130. . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers 134. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Specifications 135. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table B-1: Cabinet Dimensions & Clearances 128. . . . . . . . . . . . . .
Table B-2: Minimum Battery Strings Required Sector–Carrier
Configurations 130. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table B-3: Circuit Breakers 134. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table B-4: Torque Specifications 135. . . . . . . . . . . . . . . . . . . . . . . .
Figures
Figure B-1: SC 4812ET Conduit I/O Plates 129. . . . . . . . . . . . . . . .
Figure B-2: Conduit Layout 131. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure B-3: Mounting Hole Dimensions 131. . . . . . . . . . . . . . . . . .
Figure B-4: SC 4812ET RF Cabinet Conduit I/O 132. . . . . . . . . . .
Figure B-5: SC 4812ET Power Cabinet Conduit I/O 133. . . . . . . . .
Overview
This document is intended to be a summary of SC4812ET RF and Power
Cabinet specifications presented in the body of the Installation Manual.
It is not a complete listing, and should not be considered a replacement
for reading the manual.
B
Cabinet Specifications
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Physical Specifications
Table B-1: Cabinet Dimensions & Clearances
Description Specification Reference Chapter
SC 4812ET RF Cabinet
Height 1677mm (66”)Chapter 1
Width 1423mm (56”)Chapter 1
Depth 915mm (36”)Chapter 1
Weight (Max) 680 kg (1500 lbs) Chapter 2
Rear Clearance 510mm (20”)Chapter 1
Front Clearance 1145mm (45”)Chapter 1
Left Clearance 255mm (10”)Chapter 1
Right Clearance 130mm (5”)Chapter 1
SC 4812ET Power Cabinet
Height 1677mm (66”)Chapter 1
Width 1423mm (56”)Chapter 1
Depth 965mm (38”)Chapter 1
Weight (Max, with batteries) 1590 kg (3500 lbs) Chapter 2
Weight (as shipped, without batteries) 544 kg (1200 lbs) Chapter 2
Rear Clearance 660mm (26”)Chapter 1
Front Clearance 1145mm (45”)Chapter 1
Left Clearance 130mm (5”)Chapter 1
Right Clearance 330mm (13”)Chapter 1
Indoor Ventilation Specifications
If the SC4812ET is installed in an indoor location, Adequate ventilation
must be available to dissipate heat loads of 7,500 Watts (25,600 Btu/hr)
for the RF Cabinet and 3,000 Watts (10,300 Btu/hr) for the Power
Cabinet (a total of 10,500 Watts; 35,900 Btu/hr), and maintain a
maximum temperature of no greater than 50 Deg C (122 Deg F).
Grounding Specifications
The ground system resistance must be less than 10 Ohms, with 5 Ohms
or less being the goal, see ”Grounding Guidelines for Cellular Radio
Installations” Motorola P/N 68P81150E62 for details.
AC Power Specifications
The Power Cabinet is rated at 130 Amps (100 Amps continuous/130
non–continuous in the range of 208–240 VAC). Maximum cable size
that can be accommodated is 300 kcmil. Cable sizing should be
determined by Local Electric Codes, using 90 Deg C rated conductors,
and derating for 50 Deg C operation. Motorola recommends not less
than #2/0 AWG (#1 BSWG; 50 mm2) copper for buried/raceway cables
to the power pedestal, with an associated power pedestal breaker size of
150 Amps for a single Power Cabinet.
B
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AC Power is not present in the SC4812ET RF Cabinet.
NOTE
DC Power Specifications
The maximum total voltage drop between the RF and Power Cabinet (as
measured at the DC power connector in the I/O area of each cabinet)
must be less than or equal to 0.4V. The Power Cabinet is shipped with
Superflex #2/0 AWG cable, 12 ft. in length (See Chapter 2). Larger
diameter cable or other solutions, may be used to increase the distance
between cabinets provided the maximum voltage drop is not exceeded.
GFCI/AC Outlet
Specifications
The Power Cabinet has two convenient GFCI/AC outlets, accessible
from the rear of the Power Cabinet. The circuit breaker of the outlets is
located in the Power Cabinet ACLC. The outlets are rated at a combinet
total of 15A @ 104 – 120 AC for the United States, Brazil, and Peru. In
addition there are five different outlets which can be configured and
tailored to different countries such as Argentina, China, Chile, Israel,
Hong Kong, Singapre, and the United Kingdom.
Conduit I/O Plate Specifications
Removable I/O plates are provided for conduit termination on both the
RF and Power Cabinets. The panels for bottom entry are blank and can
be punched to accommodate various sized conduit, the rear entry panels
have knockouts sized for conduits as shown in Figure B-1. The bottom
and rear entry panels can be exchanged to allow for various
configurations.
Figure B-1: SC4812ET Conduit I/O Plates
Power Cabinet Conduit I/O PlatesRF Cabinet Conduit I/O Plates
2” Conduit
Hole
(Main AC)
1” Conduit Knockout
(Pilot Beacon AC)
3” Conduit
Hole (DC)
3” Conduit
Hole (DC)
PG11 Conduit
Knockout
(RGPS Fitting)
1” Conduit
Knockouts (x6)
(Expansion, I/O,
Alarms, Other)
B
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Battery Configuration Specifications
Table B-2 shows the minimum number of battery strings required for
various system configurations. It is recommended to install the number
of batteries required to obtain an estimated 4 hours of backup time for
the SC4812ET RF Cabinet.
The backup durations presented within this table is an
estimated time based on 25 Deg C (77 Deg F) battery
temperature, actual backup duration may vary with system
configuration and loading.
NOTE
Table B-2: Minimum Battery Strings Required for Sector–Carrier Configurations
# of Battery
Strings 3 Rectifiers
(3 Sector–Carriers) 4 Rectifiers
(6 Sector–Carriers) 5 Rectifiers
(9 Sector–Carriers) 6 Rectifiers
(12 Sector–Carriers)
0 0 0 0 0
1
2
3
4
5
64.0 hrs
74.8 hrs 3.5 hrs
85.4 hrs 4.0 hrs
96.0 hrs 4.5 hrs 3.6 hrs
10 6.7 hrs 5.0 hrs 4.0 hrs 3.3 hrs
11 7.4 hrs 5.5 hrs 4.4 hrs 3.6 hrs
12 8.0 hrs 6.0 hrs 4.8 hrs 4.0 hrs
! CAUTION
The minimum number of battery strings presented in this table must be met or reduced backup time and
inadvertent tripping to the battery system breakers could result.
Conduit Layout Specifications
Figure B-2, Figure B-3, and Figure B-4 show the openings in the cabinet for conduit entry.
B
Cabinet Specifications
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DC (TO
RF CABINET)
AC (TO PILOT
BEACON)
MAIN AC
0
867 mm
049 mm
1470 mm
0
(34.2”)
1158 mm
(45.6”)
(1.9”)
1188 mm
(46.7”)
49 mm
(1.9”)
1390 mm
(54”)
(57.9”)
1471 mm
(57.9”)
1518 mm
(59.8”)
89 mm
(3.5”)
527 mm
(20.7”)
1518 mm
(59.8”)
587 mm
(23”)
1091 mm
(42.9”)
16 mm
(0.6”)
614 mm
(24.2”)
475 mm
(18.7”)
DC (TO POWER
CABINET)
MAIN RF
EXPANSION RF
SPAN/ALARM
EXPANSION 1 EXPANSION 2
Power Cabinet RF Cabinet
87 mm
(3.4”)
61 mm
(2.4”)–65 mm
(–2.5”)
77 mm
(3”)
Figure B-2: Pad Forms and Conduit Layout
973 mm
(38.3)
PILOT BEACON
GROUND
GROUND
FW00005
1289 mm
(50.7”)
145 mm
(5.7”)
14 mm
(0.5”)
05 mm
(0.2”)
DC (TO RF
CABINET) DC (TO POWER
CABINET)
Figure B-3: Mounting Hole Dimensions
Note:
Hole Pattern is
Identical for RF and
Power Cabinets
1518 mm
(59.8”)
475 mm
(18.7”)
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0 mm
(0”)
49 mm
(1.9”)
133 mm
(5.2”)
272 mm
(10.6”)
304 mm
(11.9”)
67 mm
(2.6”)
104 mm
(4.1”)
139 mm
(5.4”)
65 mm
(2.6”)
65 mm
(2.6”)
261 mm
(10.3”)
469 mm
(18.5”)
587 mm
(23.1”)
70 mm
(2.8”)
Figure B-4: SC 4812ET RF Cabinet Conduit I/O
0 mm
(0”)
650 mm
(25.5”)
595 mm
(23.4”)
75 mm
(3.0”)629 mm
(24.7”)
415 mm
(16.3”)
340 mm
(13.3”)
1069 mm
(42.1”)
FW00194
211 mm
(8.3”)
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0 mm
(0”)
0 mm
(0”)
230 mm
(9”)446 mm
(17.5”)546 mm
(21.4”)
82 mm
(3.2”)
Figure B-5: SC 4812ET Power Cabinet Conduit I/O
49 mm
(1.9”)
217 mm
(8.5”)
FW00195
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Circuit Breakers
Table B-3 is a list of all of the circuit breakers (AC and DC) present in the SC4812ET RF and Power Cabinet.
Table B-3: Circuit Breakers
Breaker Size Description Qty
SC 4812ET RF Cabinet
400A DC Main Breaker 1
50A DC LPA Breaker (1 per pair of LPA’s) 8
10A DC ETIB 1
10A DC External Blower Assembly 2
25A DC Heat Exchanger 2
15A DC Options 1
SC 4812ET Power Cabinet: North American
150A AC Main Breaker 1
70A AC Rectifier Breaker (1 per shelf) 2
15A AC Battery Heater (1 per battery
compartment) 2
15A AC GFCI 1
15A AC Spare (Pilot Beacon) 1
SC 4812ET Power Cabinet: International
160A AC Main Breaker 1
63A AC Rectifier Breaker (1 per shelf) 2
16A AC Battery Heater (1 per battery
compartment) 2
10A AC AC Outlet 1
10A AC Spare (Pilot Beacon) 1
SC 4812ET Power Cabinet: Common
160A DC Main Breakers 3
25A DC Heat Exchanger 2
2A DC Breaker System Breaker 1
5A DC Internal Fan 1
80A DC Battery String Breakers 12
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Torque Specifications
Table B-4 lists the appropriate torques for various fastening hardware used throughout the SC4812ET cabinets.
Table B-4: Torque Specifications
Fastener Size Head Size Torque Comments
5/8”24 mm (15/16”) Hex 80 N–m (60 ft–lbs) Sunshade Bolts
M12 19 mm (3/4”) Hex 80 N–m (60 ft–lbs) Cabinet Mounting
M12 19 mm (3/4”) Hex 135 N–m (100 ft–lbs) Mounting Bracket to Cabinet
M10 17 mm (11/16”) Hex 12 N–m (110 in–lbs) DC Power
M8 13 mm Hex 7 N–m (55 in–lbs)
M6 10 mm Hex, T30 Torx 6 N–m (50 in–lbs) Conduit Panels
M4 7 mm Hex, T20 Torx 3 N–m (25 in–lbs)
M3 T10 Torx 1 N–m (13 in–lbs)
4–40 T15 Torx 1 N–m (10 in–lbs) LPAs, Combiners
PG7 Nut 20 mm Open Hex 2 N–m (22 in–lbs) Power Cabinet
PG9 Nut 22 mm (7/8”) Open Hex 4 N–m (33 in–lbs) Power Cabinet
PG11 Nut 25 mm (1”) Open Hex 2 N–m (18 in–lbs) RGPS Fitting
PG13 Nut 27 mm Open Hex 4 N–m (33 in–lbs) Power Cabinet
PG29 Nut 46 mm Open Hex 7 N–m (66 in–lbs) Power Cabinet
N–Connector 19 mm (3/4”) Open Hex 4 N–m (60 in–lbs) RF Cables
SMA SMA Torque Wrench 1 N–m (10 in–lbs) RFDS Cables
1/4”7/16”12.4 N–m (110 in–lbs) Johnson TEL 12–105F Battery
Terminal (suppliers may very)
B
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Notes
B
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Appendix C: Installation Quickstart
This section includes... Introduction to Document 137. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools and Hardware 138. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Site Considerations 138. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF and Power Cabinet Installation 139. . . . . . . . . . . . . . . . . . . . . . .
Concrete Pad Mounting 139. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rooftop or Other Structure Mounting 139. . . . . . . . . . . . . . . . . . . .
Battery Heater and Battery Installation 140. . . . . . . . . . . . . . . . . . .
Cabinet Cabling Procedures 140. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Earth Ground Cabling 140. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm, Span Line, and RGPS Cabling 140. . . . . . . . . . . . . . . . . . . .
Main RF Cabling 141. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Power Cabling 141. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Power Cabling 143. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heat Dissipation 144. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table C-1: Site Considerations 138. . . . . . . . . . . . . . . . . . . . . . . . . .
Table C-2: Site Prep and Cabinet Mounting on Concrete Pad 139. .
Table C-3: Site Preparation and Cabinet Mounting on a Rooftop 139
Table C-4: Installing the Earth Ground Cable 140. . . . . . . . . . . . . .
Table C-5: Alarm, Span Line, Remote GPS Cables Install 140. . . .
Table C-6: DC Power Cabling Installation Procedure 142. . . . . . . .
Table C-7: AC Power Cabling Procedures 143. . . . . . . . . . . . . . . . .
Introduction
This “SC 4812ET Hardware Installation Quickstart” is meant as a
supplement to the SC4812ET Hardware Installation Manual
(6864114A22), hereinafter called “the manual”, and not as a replacement
for reading the manual. In case of any discrepancies, the manual should
be considered the correct and final reference.
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Tools and Hardware
–Wire Cutters
–110 style Punch Block Punch Tool
(CGDS237176)
–10 mm Socket
–Tin Snips
–Crimp Tool for Compression Lug
(CDGSTBM25S)
–Drill Motor
–18 mm (11/16”) Masonry Drill bit
–Torque Driver (NOTE: Torque range is from 5 to
135 N–m (from 4 to 100 ft–lbs)
–19 mm (3/4”) Open Ended Torque Wrench (for
N–type connector)
–Thomas & Betts TBM14 Hydraulic crimping
tool with color keyed crimp die set (or
equivalent)
–19 mm (3/4”) Deep Socket
Site Considerations
A quick reference of specific site considerations is shown in Table C-1.
Table C-1: Site Considerations
nSite Consideration References and Recommendations
Clearances around BTS See chapter 1 in the manual for figures.
Power Cabinet: Front = 45” Back = 26” Left Side = 5” Right Side = 13”
RF Cabinet: Front = 45” Back = 20” Left Side = 10” Right Side = 5”
Adequate Ventilation
(Indoor Unit Only) Ventilation to dissipate heat loads of 7,500 W (25,600 Btu/hr) for the RF
Cabinet, and 3,000 W (10,300 Btu/hr) for the Power Cabinet (a total of
10,500 Watts; 35,900 Btu/hr).
Maximum Ambient Temperature of 50 Deg C (122 Deg F)
Location Locations should be selected to minimize accidental or intentional
vandalism, and not be subject to submersion or potential flooding.
Adequate clearance through door and passageways to allow movement of
the cabinet.
Rooftop installation SC 4812ET RF Cabinet maximum weight = 680 kg. (1500 lbs.)
SC 4812ET Power Cabinet maximum weight = 1580 kg. (3500 lbs.)
Ensure that all loading & zoning requirements have been approved
BTS Mounting holes
drilled See Chapter 2 – “Drilling Procedures”
AC Power Pedestal or
Meter Provided Recommended power pedestal breaker rated @ 150Amps for one BTS, or
per Local Electrical Code.
AC Power Supplied to
site See Chapter 2, “Materials Needed” BTS rated @ 130A (208–240VAC)
Alarm and Span Line
Cable Equipment
Available
Twenty–five (25) twisted pair cable, 1” watertight conduit
Ground Wire Connection
Supplied Motorola recommends #3 BSWG (#2 AWG) solid–tinned wire.
. . . continued on next page
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Table C-1: Site Considerations
nReferences and RecommendationsSite Consideration
DC Power Connection
Supplied #2/0 AWG Cable Shipped with Power Cabinet (length = 12 ft.); 3” Trade
Size Conduit
Transmission Cable &
Conduit See chapter 2 in the manual for dB loss per foot, minimum bending radius,
and conduit information
Crane Available or
scheduled If required
RF and Power Cabinet Installation
The following tables include site preparation and step–by–step
procedures for mounting the SC4812ET RF and Power Cabinets.
Concrete Pad Mounting
Table C-2 covers the cabinet mounting instructions on a concrete pad,
this procedure should be followed for both the RF and Power Cabinet.
Table C-2: Site Preparation and Cabinet Mounting on a Concrete Pad
Step Action
1NOTE
–If constructing a new concrete pad, follow the procedures detailed in Chapter 2 ”New Concrete
Pad Installation” in the manual.
–Drill the cabinet mounting holes per the procedures in Chapter 2 of the manual. Motorola
recommended anchor bolts require 18 mm (11/16”) drill size.
2Verify that the mounting holes have been drilled in the proper locations.
3Install the cabinet per the procedures in Chapter 4 of the manual. If the recommended anchor bolts are
used, they should be tightened to a torque of 80 N–m (60 ft–lbs).
Rooftop or Other Structure
Mounting
Table C-3 covers the cabinet mounting instructions on a rooftop or other
structure, this procedure should be followed for both the RF and Power
Cabinet.
Table C-3: Site Preparation and Cabinet Mounting on a Rooftop
Step Action
1Review the roof load carrying limits, and ensure that the appropriate support structure is in place.
2Install the cabinet per the procedure in Chapter 4 of the manual. If the Motorola supplied mounting
bolts are used, they should be tightened to a torque of 80 N–m (60 ft–lbs).
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Battery Heater and Battery Installation
See Chapter 4 of the manual for instructions to install the battery heater
pads and batteries in the Power Cabinet.
Cabinet Cabling
Procedures
The following tables are step–by–step procedures for the SC4812ET
cabling.
Earth Ground Cabling
Follow Table C-4 to install the earth ground cable in both the RF and
Power Cabinet.
Table C-4: Installing the Earth Ground Cable
Step Action
1Route the ground cable to the rear of the cabinet. The ground studs are located in the RF I/O area on
the RF cabinet, and in the AC I/O area on the Power Cabinet.
NOTE
Motorola recommends #3 BSWG (#2 AWG; 35 mm2) solid–tinned copper wire for the ground cable.
2Strip insulation from the cabinet end of the cable.
3Attached the two–holed ground lug supplied with the installation hardware to the stripped end of the
cable. Use the proper crimp tool (Motorola P/N CGDSSTBM25S or equivalent).
4Connect the two–holed lug to the cabinet ground studs and secure with the two (2) M6 nuts supplied
with the installation hardware. Torque to 5 N–m (45 in–lbs.).
Alarm, Span Line, RGPS and Power
Cabinet Alarm Cabling
Table C-5 is for alarm, span line cabling, and Remote GPS Installation
procedures.
Table C-5: Alarm, Span Line Cabling, and Remote GPS Cable Install
Step Action
1Refer to Table A-1 in the manual for installing the RGPS prior to proceeding.
2Route the Alarm, Span Line and RGPS twisted pair cable(s) through the conduit, the RF I/O boot, and
to the punch block. Refer to Chapter 5 in the manual for the proper locations on the RF cabinet.
3Connect the Alarm, Span Line, and Remote GPS pairs from the cable to the punch block using only
the recommended 110 style punch tool (CGDS237176 or equivalent), per the pin–call–outs in Chapter
5 of the manual.
4Strain relief the cable by tie wrapping it to the punch block as shown in Chapter 5 of the manual.
. . . continued on next page
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Table C-5: Alarm, Span Line Cabling, and Remote GPS Cable Install
Step Action
5Route the Power Cabinet Alarm Cable from the RF Cabinet to the Power Cabinet (in 3” DC conduit)
and through the Power I/O Boot to the Punch Block.
6Connect the Power Cabinet Alarm cable pairs to each punch block per the pin–callouts in Chapter 5 of
this manual.
7Strain relief the cable by tie wrapping it to the punch block as shown in Chapter 5 of the manual.
Main RF Cabling
RF cabling depends upon system configuration, see site documentation
and chapter 5 of the manual for details regarding RF cabling.
DC Power Cabling
Table C-6 describes the procedure for connecting DC Power Cabling.
Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious personal
injury can result.
WARNING
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
CAUTION
The hole in the I/O panel of the cabinets is the proper size
for a US Standard 3” conduit fitting.
NOTE
Figure C-1: Connecting Power Cables
CABLE
GROMMET
LUG COVER
M10 NUT
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
FEED COVER (Do not remove)
ENCLOSURE BASE
POWER INPUT STUD
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Table C-6: DC Power Cabling Installation Procedure
Step Action
1Ensure that all three (3) main DC breakers in the Power Cabinet are “OFF.”
2Route the DC conduit from the I/O area of the Power Cabinet to the I/O area of the RF Cabinet. See
Figure 5-1 for suggested location.
NOTE
This step is omitted if the DC conduit is already installed through the concrete pad.
3Route the three (3) RED +27V feed power cables through the conduit and to the DC power connector
in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
4Route the three (3) BLACK –27V feed power cables through the conduit and to the DC power
connector in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
5At the RF Cabinet end of each DC power cable, strip insulation equal to the length of the crimping lug
barrel, plus an additional 5 mm (0.2”).
! CAUTION
Route the cables through the rubber boot BEFORE crimping lug onto wire or damage to the boot can
occur.
6Trim the top (tapered end) of the cable grommet to allow the grommet to slide over the cable. Ensure
that the grommet fits firmly around the cable.
7Slide one cable grommet over each cable at the connector box.
8Insert the cable into the barrel of the right angle crimp lug.
9Crimp the lug to the cable.
10 Repeat steps 8–9 for the remaining power cable(s).
NOTE
Be sure to observe the polarity of each cable as you install the cables to the power input studs on the
RF Cabinet.
11 Assemble the power cable to the studs as follows:
11a –Place the cable lugs over the power input studs.
11b –Place the M10 flat washer over the stud and on top of the lug.
11c –Place the M10 lock washer over the stud and on top of the flat washer.
. . . continued on next page
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Table C-6: DC Power Cabling Installation Procedure
Step Action
11d –Place the M10 nut over the stud and on top of the washer.
! CAUTION
Exceeding the torque limit may damage the stud.
11e –Torque (tighten) nuts to 11–12 N–m (100–110 in–lbs).
12 Repeat steps 11a through 11e for the remaining power cables.
13 Position the lug cover over the base and lock the cover (it will snap) onto the enclosure base.
14 Slide each grommet down the cable and over the cable entry hole.
15 Repeat step 5 through step 14 for the Power Cabinet connections.
16 Verify that DC polarity between the RF and Power Cabinet is correct.
AC Power Cabling
The Power Cabinet is rated at 130 Amps (90 Amps continuous/130
non–continuous in the range of 208–240 VAC). Maximum cable size
that can be accommodated is 300 kcmil. Cable sizing should be
determined by Local Electric Codes, using 90 Deg C rated conductors,
and derating for 50 Deg C operation. Motorola recommends not less
than #2/0 AWG (#1 BSWG; 50 mm2) copper for buried/raceway cables
to the power pedestal, with an associated power pedestal breaker size of
150 Amps for a single Power Cabinet.
For more details about the AC rating of the cabinet, see Chapter 5 of the
manual.
Table C-7 describes the AC Power Cabling installation procedures.
–Dangerous voltages are present that can cause serious
injury or death. AC power wiring must be installed by
qualified personnel only.
–High Leakage current. Earth ground connection is
essential before connecting the power supply. Ground
connection is also required before connecting any
incoming telecom lines to ensure protection from
surges.
CAUTION
Table C-7: AC Power Cabling Procedures
Step Action
1Verify that the breaker box (at the power meter) is OFF.
2Open the lower rear I/O door on the Power Cabinet, and remove the AC Load Center access panel
(loosen the screws in the panel to open).
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Table C-7: AC Power Cabling Procedures
Step Action
3Route the AC power conduit to the rear or bottom (as appropriate) AC I/O panel on the cabinet and
terminate conduit.
4Route the 208–240 VAC power wires from the power meter breaker box, through the AC power
conduit, through the I/O boot, to the AC load center.
5Connect the AC wires to the appropriate terminals (see Chapter 5 for details).
Heat Dissipation
The minimum heat dissipated to prevent condensation
inside the cabinet under the extremes of environmental
conditions is 110 Watts for the RF Cabinet and 110 Watts
for the Power Cabinet. This can be accomplished by
following the Initial Power Up procedures in the SC
4812ET ATP manual.
IMPORTANT
*
C
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Appendix D: SC 4812ET/SC 614 BTS DC Power Sharing
This section includes...
Scope and Introduction 145. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration 146. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Power Connection 147. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing DC Power Cabling 148. . . . . . . . . . . . . . . . . . . . . . . . . . .
Reinstall Access Panel 150. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applying AC and DC Power 155. . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table D-1: Battery/Rectifier Configuration 147. . . . . . . . . . . . . . . .
Table D-2: Materials Required for DC Power Cabling 148. . . . . . .
Table D-3: SC 614 DC Power Cabling 148. . . . . . . . . . . . . . . . . . . .
Table D-4: Reinstall the Access Panel (SC 614) 151. . . . . . . . . . . .
Table D-5: Wire, Lug, and Die Table 152. . . . . . . . . . . . . . . . . . . . .
Table D-6: Procedure to Install DC Power Cables 154. . . . . . . . . . .
Figures
Figure D-1: SC4812ET/SC614 Base Station DC Power Sharing 146
Figure D-2: Backup DC Power Cable Routing 149. . . . . . . . . . . . .
Figure D-3: Cold Shrinking the compression lug 150. . . . . . . . . . .
Figure D-4: Cover installation 150. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure D-5: Reinstall Access Panel 151. . . . . . . . . . . . . . . . . . . . . .
Figure D-6: Connecting Power Cables 153. . . . . . . . . . . . . . . . . . . .
Scope and Introduction
The purpose of this appendix is to provide instructions on how to
connect an SC 614 BTS to an SC 4812ET Power Cabinet in order to
share DC power and battery backup support. For details regarding RF
cabling considerations for a SC 4812ET and a SC 614T BTS, see
Appendix E.
The SC 4812ET Power cabinet provides 27 Volts DC power to an
associated SC 4812ET RF Cabinet. For sites where the SC 4812ET will
be co–located with an SC 614 base station, it can be advantageous for
space and other considerations to be able to use the SC 4812ET Power
Cabinet as a DC source for both the SC 4812ET and SC 614 BTS.
. . . continued on next page
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This document describes how to install and configure the equipment to
provide this functionality.
Configuration
The SC 4812ET Power Cabinet consists of a rectifier system with up to
six 27 Volt DC, 70 Amp modules, depending on the number of carriers it
is required to support in the SC 4812ET RF Cabinet.
Connections to the SC 4812ET are made via six #2/0 AWG superflex
(three red and three black) cables, to allow redundancy on the DC
connections, and to minimize voltage drop.
Up to 12 battery strings can be provided in the Power Cabinet to support
up to four hours of battery backup in a fully equipped SC 4812ET RF
cabinet.
When connecting an SC 614 BTS to the SC 4812ET Power Cabinet,
only four #2/0 AWG superflex (two red and two black) cables are used
for the SC 4812ET. The spare set of terminals on the Power Cabinet are
used to feed the SC 614 (see Figure D-1).
FW00149
Figure D-1: SC4812ET/SC614 Base Station DC Power Sharing
2 Individual
Connection Cables
3 x 28V
DC Outputs
Rear of SC 4812ET
RF Cabinet Rear of SC 4812ET
Power Cabinet
SC 614
DC Power Only
Battery Backup Interface
208–240 VAC
D
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The SC 614 MUST NOT be connected to an AC source in
this configuration. As shown in Figure D-1, AC should
ONLY be connected to the SC 4812ET Power Cabinet. To
ensure that accidental AC connection cannot occur to the
SC 614, the four AC Power cables that connect from the
SC 614 AC Load Center to each of the Power Supply units
should be removed. Failure to do this could result in
damage to the SC 614 Power Supplies and misoperation of
the entire system.
CAUTION
Due to the reduction in load capacity of the power cabinet, the
battery/rectifer configuration and number of sector–carriers that can be
supported in the SC 4812ET RF Cabinet are changed compared to the
standard SC 4812ET documentation.
Table D-1: Battery/Rectifier Configuration
Number of Rectifier
Modules Number of Battery
Strings SC 4812ET Sector
Carriers System Battery Backup
Time (hours)
4 8 3 4
4 12 3 6
5 10 6 4
SC 614 DC Power
Connection
The objective of this procedure is to connect the DC power cable from
the Power Cabinet to the SC 614 BTS.
Battery Power must be removed from the system until all
connections are made to the BTS.
WARNING
D
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Materials
Lug (for supplied cable)
SMotorola Part Number (2910262A12) or Panduit Part Number
(LCD3/0–14BX)
Cold Shrink (included with the SC 614 Install Kit)
SMotorola Part Number (3764683A01) or 3M Part Number (CST
045–095–300)
Table D-2: Materials Required for DC Power Cabling
Qty Description
4M6 Lock Nut
1Red DC Power Cable, 2/0 Weld (CGDS2/0WREDFT)
1Black DC Power Cable, 2/0 Weld (CGDS2/0WBLKFT)
151 mm (2”) moisture tight is recommended
2Two–hole lug supplied with Installation Kit (Motorola P/N 2910262A12)
1Tubing supplied with the Installation Kit (Motorola P/N 3764683A01)
Installing SC 614 DC Power
Cabling
This procedure is used to install the SC 614 BTS DC power cabling.
Table D-3: SC 614 DC Power Cabling
Step Action
1NOTE
This step is omitted if the DC conduit is already installed through the concrete pad.
Route the DC conduit to the side wall of the BTS. See Figure D-2 for location.
2Route the RED 28V feed power cable through the conduit opening on side of BTS (see Figure D-2).
3Route the BLACK 28V Return cable though the conduit opening on the side wall of the BTS (see
Figure D-2).
4Strip the wire from both cables (RED and BLACK) approximately 25 to 29 mm (1 to 1–1/8” inches).
5Install the crimp lugs to the end of each cable and crimp with tool (CGDSTBM14LOCK) or
equivalent.
6Connect BLACK 28V Return cable to the Main Ground Bar using two (2) nuts supplied with the
installation hardware. Torque to 5 N–m (45 in–lbs).
7Install cold shrink tubing (Motorola P/N 3764683A01) onto the RED 28V feed cable (see Figure D-3).
* IMPORTANT
Cold shrink tubing must cover the compression lug up to the flat portion of the lug (see Figure D-3).
. . . continued on next page
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Table D-3: SC 614 DC Power Cabling
Step Action
8Pull the exposed end of the cold shrink tubing until it begins to unravel. Make sure that the tubing is
positioned over the proper location on the lug. Pull the tube until the cold shrink is attached.
9Loosen the two (2) screws that retain the BBI (Battery Backup Interface) cover (see Figure D-4 for
location). Slide cover towards the back of the BTS and remove it.
10 Attach the RED 28V feed power cable to the exposed studs on the BBI with the lock nuts supplied
with the installation hardware (see Figure D-2). Torque to 5 N–m (45 in–lbs).
11 Reinstall the BBI cover and slide it towards the front of the BTS. Torque to 2 N–m (15 in–lbs).
Figure D-2: SC 614 Backup DC Power Cable Routing
DC CONDUIT LOCATION
MOUNTING STUDS
2910262D12
(SHOWN INSTALLED)
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Figure D-3: Cold Shrinking the compression lug
COLD SHRINK TUBING
2910262A12 (SUPPLIED
IN INSTALLATION KIT)
Figure D-4: Cover installation
COVER
SCREWS
Reinstall Access Panel
The objective of this procedure is to reinstall the access panel at the
bottom of the SC 614 BTS. Refer to Figure D-5 and follow the
procedures in Table D-4.
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Table D-4: Reinstall the Access Panel (SC 614)
Step Action
1Loosen the three (3) nuts that hold the I/O cover in place at the bottom of the BTS (see Figure D-5).
and reinstall the panel.
NOTE
The access panel is a two–piece panel; install the right side first.
In order to keep radiated and conducted emissions within
specifications, it is necessary to install all 3 of the nuts and
torque them properly.
IMPORTANT
*
ACCESS
PANEL
Figure D-5: Reinstall Access Panel
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DC Power Interconnect to RF
Cabinet and SC 614
Overview
The following details are excerpts from the Chapter 5 of this manual.
Only two of each red and black cables will be connected
from the SC 4812ET Power Cabinet to the SC 4812ET RF
Cabinet. The remaining connection will be used to power
the SC 614 BTS.
NOTE
The objective of this procedure is to connect the DC power cabling to
the RF Cabinet from the Power Cabinet.
ALL power must be removed from the system until all
connections are made to both the RF and Power Cabinet.
Ensure that all breakers in both the RF and Power Cabinet
are turned in the “OFF” (opened) position.
WARNING
Tools and equipment required
The following tools are required to install the power cables:
–Thomas & Betts TBM14 Hydraulic crimping tool with color keyed
crimp die set (or equivalent). Contact Thomas & Betts for
information concerning equivalent tools.
–17 mm socket
–Torque wrench capable of 110 in–lbs
Table D-5: Wire, Lug, and Die Table
Wire Size Color and Die
Motorola Part Number
for Lugs AWG Metric (mm) Welding
(Superflex) Circular
Mills Area
Code
CGDS256306951514 2/0 AWG 60–70 1/0 133,400 BLACK 45
CGDS256306951539 3/0 AWG 85–95 2/0 167,800 ORANGE 50
CGDS256306951515 4/0 AWG 100–107 3/0 211,600 PURPLE 54
CGDS256306951540 N/A N/A 4/0 250,000 YELLOW 62
Power input connections
Figure D-6 shows how the power cable is connected to the RF and
Power Cabinet. Figure 5-1 show the location of the DC power connector
in the RF Cabinet and Power Cabinet.
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Figure D-6: Connecting Power Cables
CABLE
GROMMET
LUG COVER
M10 NUT (17 mm Hex
Driver Required)
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
FEED COVER
(Do not remove)
ENCLOSURE
BASE
POWER
INPUT
STUD
Route the cables through the rubber boot BEFORE
crimping lug onto wire or damage to the boot can occur.
CAUTION
Installation Procedure
SDo NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious personal
injury can result.
WARNING
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
CAUTION
Follow the procedure in Table D-6 to install the DC power cables (refer
to Figure D-6 and Figure 5-1).
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Table D-6: Procedure to Install DC Power Cables
Step Action
1Ensure that all three (3) main DC breakers in the Power Cabinet are ”OFF.”
2Route the DC conduit from the I/O area of the Power Cabinet to the I/O area of the RF Cabinet. See
Figure 5-1 for suggested location.
NOTE
This step is omitted if the DC conduit is already installed through the concrete pad.
3Route the three (3) RED +27V feed power cables through the conduit and to the DC power connector
in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
4Route the three (3) BLACK –27V feed power cables through the conduit and to the DC power
connector in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
5At the RF Cabinet end of each DC power cable, strip insulation equal to the length of the crimping lug
barrel, plus an additional 5 mm (0.2”).
! CAUTION
Route the cables through the rubber boot BEFORE crimping lug onto wire or damage to the boot can
occur.
6Trim the top (tapered end) of the cable grommet to allow the grommet to slide over the cable. Ensure
that the grommet fits firmly around the cable.
7Slide one cable grommet over each cable at the connector box.
8Insert the cable into the barrel of the right angle crimp lug.
9Crimp the lug to the cable.
10 Repeat steps 8–9 for the remaining power cable(s).
NOTE
Be sure to observe the polarity of each cable as you install the cables to the power input studs on the
RF Cabinet.
11 Assemble the power cable to the studs as follows:
11a –Place the cable lugs over the power input studs.
11b –Place the M10 flat washer over the stud and on top of the lug.
11c –Place the M10 lock washer over the stud and on top of the flat washer.
. . . continued on next page
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Table D-6: Procedure to Install DC Power Cables
Step Action
11d –Place the M10 nut over the stud and on top of the washer.
! CAUTION
Exceeding the torque limit may damage the stud.
11e –Torque (tighten) nuts to 11–12 N–m (100–110 in–lbs).
12 Repeat steps 11a through 11e for the remaining power cables.
13 Position the lug cover over the base and lock the cover (it will snap) onto the enclosure base.
14 Slide each grommet down the cable and over the cable entry hole.
15 Repeat step 5 through step 14 for the Power Cabinet connections.
16 Verify that DC polarity between the RF and Power Cabinet is correct.
Checks
Check that all AC & DC breakers are turned OFF in both the SC
4812ET RF and Power Cabinet. The SC 614 Cabinet should have the
DC buss bar (six breakers) closed, and the 100 amp breaker on the BBI
open.
Check that the DC Power cables between the Power and RF Cabinets are
connected with the correct polarity. There are two red and two black
cables for the SC 4812ET and one red and one black cable for the SC
614 BTS
Confirm that split phase 240/120 AC supply is correctly connected to the
AC Load Center input in the SC 4812ET Power Cabinet.
Failure to connect the proper AC feed will damage the
surge protection module inside the AC Load Center.
CAUTION
Applying AC Power
For instructions on applying AC and DC power to the BTSs refer to the
appropriate BTS Optimization/ATP manual.
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Notes
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Appendix E: SC 4812ET – SC 614/SC 614T
Companion Frame Installation
This section includes... Scope and Introduction 157. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools Needed 158. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Required documents 158. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing the SC 614T 158. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling the SC 4812ET RXDC to the SC 614 ERXDC 166. . . . . .
Tables
Table E-1: Side Cable Entry Hole Preparation 158. . . . . . . . . . . . . .
Table E-2: Removing the Duplexers (RX2, RX4 and RX6) 160. . .
Table E-3: Removing the Diversity RXDC from the SC 614 163. .
Table E-4: Installing an ERXDC in the SC 614 Cabinet 165. . . . . .
Table E-5: Connecting SC 4812ET to SC 614 166. . . . . . . . . . . . . .
Figures
Figure E-1: Views of BTS Side Walls below Shroud 159. . . . . . . . .
Figure E-2: Double–D Hole Punch 160. . . . . . . . . . . . . . . . . . . . . .
Figure E-3: I/O Cover 161. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure E-4: Duplexer/Directional Coupler 162. . . . . . . . . . . . . . . . .
Figure E-5: Cut–a–way view of SC 614 162. . . . . . . . . . . . . . . . . .
Figure E-6: RXDC/ERXDC Card Connections 163. . . . . . . . . . . . .
Figure E-7: Location of RXDCs and ERXDCs 164. . . . . . . . . . . . .
Figure E-8: Connecting SC 4812ET to SC 614 167. . . . . . . . . . . . .
Figure E-9: Cabling of SC 4812ET to SC 614 BTS 168. . . . . . . . .
Scope and Introduction
The purpose of this information is to provide instructions on how to
install a SC 4812ET to SC 614/SC 614T (SC 614) companion frame
configuration. This procedure assumes that the SC 614 has been
previously installed, optimized, tested and is in operation.
This procedure details the steps necessary to convert the existing
SC 614T site from a starter frame to an expansion frame (see
Figure E-8). Interconnection ports are included in the SC 4812ET to SC
614 inter–cabinet cabling diagram (see Figure E-9).
. . . continued on next page
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Several procedures are required and are outlined in Table E-1 through
Table E-5.
Tools Needed
–10 mm Nut Driver
–TORX T15 Screw Driver
–SMA torque wrench or 5/16” wrench if not available
–Type N torque wrench or 11/16” wrench if not available.
Required documents
–SC 4812ET RF and Power Cabinet Installation manual (Motorola
part number 68P64114A22).
–SC 4812ET RF Cabinet Optimization/ATP manuals (Motorola part
number 68P64114A23 and 68P64114A42).
–SC 614T 2nd Carrier Installation manual (Motorola part number
68P64114A07)
–SC 614T 2nd Carrier Optimization/ATP manual (Motorola part
number 68P64113A61)
–SC 614T Hardware Installation manual (Motorola part number
6864113A47).
Preparing the SC 614T
Table E-1 describes the procedures to prepare the SC 614T BTS for
side cable entry. Follow the procedure when new holes are required.
Side Cable Entry Hole Preparation
Table E-1: Side Cable Entry Hole Preparation
nStep Action
1Determine the desired location for cable entry on the sides of the BTS below the side shrouds.
Figure E-1 can be used as a guideline. If a different pattern for cable entry is desired, use a hole
pattern that is more appropriate.
n WARNING
Safety Glasses are required for the following steps.
2To punch the Double–D holes for the type N connectors on the antenna cables, first drill a pilot
hole in the side wall of the BTS approximately 11 mm (7/16”) in diameter. Use the Double–D
punch CGDS50748149 to punch the Double–D hole (see Figure E-2). Repeat as required.
3To punch the round hole for the ground cable, AC power cable, etc., use a standard electrician hole
punch set. As with all tools, follow the safety instructions from the manufacturer of the tool. The
hole required for the ground wire bushing supplied is 23 mm (7/8”).
4If necessary use a de–burring tool or sandpaper to remove any sharp burrs around the holes that
were punched.
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–For your convenience the BTS is shipped with center
punches in each of these locations
–Use of a hole saw is NOT recommended due to the
variation of the diameter and quality of the resulting
hole. A hole that is too big or oblong can result in a
cable termination that won’t seal.
NOTE
Figure E-1: Views of BTS Side Walls below Shroud
RF
DC
EARTH
GND
RGPS RGPS T1/E1
SPAN
RIGHT SIDE
LEFT SIDE
158 mm
(6–3/16”)
69 mm
(2–11/16”)
158 mm
(6–3/16”)
69 mm
(2–11/16”)
– A –
RF
RF MULTICARRIER – HSO
RF
AC
EARTH
GND
RGPS
RGPS
T1/E1
SPAN
RF
RF
MULTICARRIER – HSO
– A –
RF RF RF
RF RF RF
RF RF RF
RF RF RF
–Cable entry hole locations are at the installers option.
The diagrams shown here is only intended to be used
as a guideline. Punch only entry holes as are
applicable.
–“Datum A” represents the bottom of the BTS itself.
The rubber pad and the bottom cover are below
“Datum A”.
NOTE
. . . continued on next page
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Care should be taken not to punch extra holes in the side
wall of the BTS. Extra holes will compromise the weather
sealed nature of the SC 614T BTS Cabinet.
CAUTION
Figure E-2: Double–D Hole Punch (Refer to Motorola Part Number #CGDS50748149)
BEARING DIESHAFT
INSIDE OF BTSOUTSIDE OF BTS
NUT PUNCH NUT
BTS WALL WITH
11 MM (7/16”)
PILOT HOLE
Removal Duplexers from the SC 614
Table E-2 details the removal of three duplexers from the SC 614.
Table E-2: Removing the Duplexers (RX2, RX4 and RX6) from the SC 614
nStep Action
1Loosen the three (3) nuts that hold the I/O cover in place at the bottom of the BTS. Remove the
access panel by sliding it up towards the ACLC and out of the BTS.
NOTE
The access panel is a two–piece panel; remove the left side first.
2Disconnect the RF jumper cable (Type–N connector) from the bottom of the three duplexers
(RX2, RX4, and RX6).
3If the RFDS is installed, disconnect the two (2) SMA connectors from the RFL & FWD ports on
the lower front of the duplexers (RX2, RX4, and RX6).
4Disconnect Type N connector from RX port on top of the duplexers (RX2, RX4, & RX6).
5Using a 10 mm nut driver, loosen six (6) M6 nuts that retain the bottom and top brackets that hold
the duplexers. Slide the bottom and the top brackets forward and up, respectively, and carefully
remove the deplexers.
NOTE
The duplexers are grounded to the Main Ground Bus with two (2) ground pins. Carefully lift the
duplexers straight up until the these pins clear the MGB.
. . . continued on next page
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Table E-2: Removing the Duplexers (RX2, RX4 and RX6) from the SC 614
nActionStep
6After removing the three (3) diversity duplexers (RX2, RX4 and RX6), slide the top and bottom
brackets back to their original positions and torque the six (6) M6 nuts to 5 N–m (45 in–lbs)
7Install six Type N bulkhead connectors to the Main Ground Bar (MGB) in the holes for RXa2 IN,
RXb2 IN, RXg2 IN, RXa1 OUT, RXb1 OUT, and RXg1 OUT (see Figure E-5). Tighten the hex
nuts from the bottom of the MGB to 4 N–m (35 in–lbs).
8Install a DC block surge arrestor onto the Type–N bulkhead connectors. RXa1 OUT, RXb1 OUT,
and RXg1 OUT. Torque to 4 N–m (35 in–lbs.).
9Install the BTS labels TX1/a1, TX2/b1 and TX3/g1 over the TX1/RX1, TX2/RX3 and TX3/RX5
on the top duplexer mounting bracket respectively, and next to each corresponding port on the
outside of the cabinet.
10 If the RFDS is installed, tie wrap the cables disconneted from the RFL + FWD ports of the
duplexers together and to the side at the cabinet.
11 This completes the Duplexer removal from the SC 614.
Figure E-3: I/O Cover
ACCESS
PANEL
. . . continued on next page
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Figure E-4: Duplexer/Directional Coupler
DDC
TX
RX
TOP MOUNTING BRACKET
FWD
RFL
BOTTOM
MOUNTING BRACKET
Figure E-5: Cut–a–way view of SC 614 (from the top looking down on Duplexers)
SC 614 WITH DUPLEXERS REMOVED INTERCONNECT AT THE MAIN GROUND BAR
RXa1 OUT RXb1 OUT RXg1 OUT
RXa2 IN RXb2 IN RXg2 IN
RXDC (R1)
ERXDC
(R2)
. . . continued on next page
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Removing the Diversity RXDC (R2)
The procedure to physically remove the diversity RXDC from the
SC 614 cabinet is described in Table E-3.
Table E-3: Removing the Diversity RXDC from the SC 614
nStep Action
1Unplug the ganged connectors PL1 and PL2 from the Diversity RXDC (R2) in the BTS. (See
Figure E-6 and Figure E-7).
2Disconnect the 8–pin and 14–pin connectors, P2 and P1, respectively.
3Using a T15 TORX screw driver, loosen the two (2) pan head screws (see Figure E-7) that retain
the bracket holding the Diversity RXDC (R2) in the BTS. Slide the bracket up and remove the
unit.
Figure E-6: RXDC/ERXDC Card Connections
PL1 SECTOR 1
OUTPUT REDUNDANT SECTOR 3
OUTPUT
PL2 SECTOR 2
OUTPUT
SHIELD
J1
SECTOR 1 INPUT J2
SECTOR 2 INPUT J3
SECTOR 3 INPUT
PCB
P2 (8–PIN)
TRX 4 PWR,
CONTROL
P1 (14–PIN)
TRX 1 PWR,
CONTROL, EID
. . . continued on next page
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Figure E-7: Location of RXDCs and ERXDCs
T–15 TORX
SCREWS
R2
R1
Installing an ERXDC in the SC 614
The procedure to physically install an RXDC in the SC 614 cabinet is
described in Table E-4.
. . . continued on next page
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Table E-4: Installing an ERXDC in the SC 614 Cabinet
nStep Action
1In the R2 location, slide the bracket up and install the ERXDC with the three SMA connectors
along the bottom edge facing forward. Slide the bracket down over the ERXDC. Using a T15
TORX screw driver, torque the two (2) pan head screws to 2 N–m (16 in–lbs).
2Connect the SMA plug to the SMA jacks (J1, J2, and J3) on the ERXDC (see Figure E-6). Torque
each connector to 1.0 N–m (9 in–lbs). Connect the Type N plug to the Type N bulkhead
connectors on the MGB (J1 to RXa2 IN; J2 to RXb2 IN; and J3 to RXg2 IN). Torque each
connector to 4 N–m (35 in–lbs).
3Connect the 8–pin and 14–pin connectors, P2 and P1, respectively.
4Plug the ganged connectors onto the ERXDC (R2).
5Connect the RF jumper cable to the bottom of the Type N bulkhead connectors (RXa2 IN; RXb2
IN; and RXg2 IN). Torque each connector to 4 N–m (35 in–lbs). Install the other end of the cable
as covered in the SC 614 Hardware Installation manual.
6Install the BTS labels – RXa2 IN; RXb2 IN; and RXg2 IN next to each port on the outside of SC
614.
7Connect the jumper cables from the SC 614T RXa2 IN (RX2), RXb2 IN (RX4), and RXg2 IN
(RX6) to the SC 4812ET RF Expansion Ports labelled 1A, 2A, and 3A, respectively.
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Cabling the SC 4812ET to the
SC 614
The procedure to physically cable the RXDC in the SC 614 is described
in Table E-5.
Table E-5: Connecting SC 4812ET to SC 614
nStep Action
1Unplug the ganged connectors PL1 and PL2 from the RXDC (R1).
2Disconnect the SMB plugs from the J1300A port (main RX) and J1300B port (diversity RX) on
each TRX. Snip off the tie wrap that hold the cable together.
3Remove the two cables from the cabinet.
4Plug the ganged connectors (included in the Expansion Cabinet installation hardware) into the
RXDC (R1).
5Connect the SMB plugs on cables with the ganged connectors to the main ports (J1300A) on
TRX1, TRX4, TRX2, and TRX3 (cables are labelled with appropriate TRX). Dress these cables in
the same fashion as the previous cable assemblies.
6Connect the Type–N plugs on the cables labelled 2–TRX1, 2–TRX2 and 2–TRX3 to the Type–N
bulkhead connectors on the Main Ground Bar (MGB) in locations RXa1 OUT; RXb1 OUT; and
RXg1 OUT, respectively. Torque each connector to 4 N–m (35 in–lbs).
7Install the RF jumper cable from the Type–N bulkhead connectors on the MGB as covered in the
SC 614T Hardware Installation manual (68P64113A47).
8Install the BTS labels – RXa1 OUT; RXb1 OUT; and RXg1 OUT next to each port on the outside
of the BTS.
9Connect the jumper cables from the SC 614T RXa1 OUT, RXb1 OUT, and RXg1 OUT to the SC
4812ET RF Expansion Ports labelled 1B, 2B, and 3B, respectively.
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Figure E-8: Connecting SC 4812ET to SC 614
RF Expansion Ports
Punch
Block Power Input
27V Ret
Antennas
1A 2A 3A 1B 2B 3B
4A 5A 6A 4B 5B 6B
1A 2A 3A 1B 2B 3B
4A 5A 6A 4B 5B 6B
1
2
Remote
ASU
GND
Lugs
50 Pair
(Alarms/
Punchblock
20 Pair
(RGPS)
RGD
Board
RGD/RGPS
Power Input
+27V
Micro–
wave
RF
GPS
A
B
IN OUT
LAN
19 MHz
2 Sec
Spans
Alams
Modem
Spans)
9186180H01
SC 614T
DDC’s
SC 4812ET
EXPANSION
PORTS
1A
2A
3A
1B
2B
3B
0983599H01
TX3
RX5
TX2
RX3
TX1
RX1
TX3
RX3
TX2
RX2
TX1
RX1
3009923W04 (9)
SC 614
SC 4812ET
FW00498
SC 614 BULKHEAD
IN PORTS
OUT PORTS
EXTERNAL
CABLES
E
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Apr 2001
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Figure E-9: Cabling of SC 4812ET to SC 614 BTS
SC4812ET
C1 C2
C3 C4
RX
TX1
S
S
RX
TX2
RX
TX3
MPC–A
EMPC–B
RX1A
RX2A
RX3A
SC614T
RX1A
RX3A
TX1 (from LPA)TX2
TX3
RX2A
RX1A
RX2A
RX3A
Surge
protectors
P1
RXDC–A
n:1
ERXDC–B
2:1
RX1A_IN
Surge
protectors
S1_out
TX1/RX1TX2/RX3TX3/RX5
RX5
RX3
RX1
RX2
RX4
RX6
Ant–1A
RX2A_IN
RX3A_IN
S3_out
S5_out
RX1B
RX2B
RX3B
S1_out
S3_out
S5_out
Ant–2A
Ant–3A
S1
S2S3
C1 C2
C3 C4
C1 C2
C3 C4
FW00373
E
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Appendix F: SC 4812ET to SC 4812ET DC Power Sharing and Frame
Installation
This section includes...
Scope and Introduction 169. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration 170. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Power Interconnect to RF Cabinet 171. . . . . . . . . . . . . . . . . . . .
Cabling SC 4812ET RF Cabinet to SC 4812ET RF Cabinet 175. . .
Applying AC Power 175. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table F-1: Battery/Rectifier Configuration 171. . . . . . . . . . . . . . . .
Table F-2: Wire, Lug, and Die Table 172. . . . . . . . . . . . . . . . . . . . .
Table F-3: Procedure to Install DC Power Cables 173. . . . . . . . . . .
Table F-4: Procedure to Interconnect RF Cabinets 175. . . . . . . . . . .
Figures
Figure F-1: SC4812ET to SC 4812ET DC Power Sharing 170. . . .
Figure F-2: Connecting Power Cables 172. . . . . . . . . . . . . . . . . . . .
Scope and Introduction
The purpose of this appendix is to provide instruction on how to connect
two SC 4812ET cabinets to a single SC 4812ET Power Cabinet. Please
note that one fully loaded Power Cabinet (6 rectifiers) is rated only at
300A DC. As a result, only a total 9 Sector–carriers of capacity can be
supported in the two “co–located” RF Cabinets (e.g. one 3–sector,
1–carrier cabinet and one 3–sector, 2–carrier cabinet), or inadvertently
tripping the circuit breaker could result.
The SC 4812ET Power cabinet provides 27 Volts DC power to an
associated SC 4812ET RF Cabinet. For sites where the SC 4812ET will
be co–located with an SC 4812ET, it can be advantageous for space and
other considerations to be able to use the SC 4812ET Power Cabinet as a
DC source for the second RF Cabinet.
This section describes how to install and configure the equipment to
provide this functionality.
. . . continued on next page
F
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Configuration
The SC 4812ET Power Cabinet consists of a rectifier system with up to
six (6) 27 Volt DC, 70 Amp modules, depending on the number of
carriers it is required to support in the SC 4812ET RF Cabinet.
Connections to the SC 4812ET are made via six (6) #2/0 AWG superflex
(three red and three black) cables, to allow redundancy on the DC
connections, and to minimize voltage drop. Please note that when two
RF Cabinets are connected to one Power Cabinet, the redundancy of the
connections must be sacrificed, the effects to voltage drop and cabinet
spacing are shown in Figure F-1.
Up to 12 battery strings can be provided in the Power Cabinet to support
up to four (4) hours of battery backup in a fully equipped SC 4812ET
RF cabinet.
For the purpose of connecting two (2) RF Cabinets to the Power
Cabinet, it is necessary to only use four (4) #2/0 AWG superflex (two
red and two black) cables to connect to the 2–carrier RF Cabinets, and
two (2) #2/0 AWG superflex (one red and one black) cables to connect to
the 1–carrier RF Cabinet.
FW00149
Figure F-1: SC4812ET to SC 4812ET Base Station DC Power Sharing
2 Individual
Connection
Cables
3 x 28V
DC Outputs
(2 carrier Max)
Rear of SC 4812ET
Power Cabinet
(1 carrier Max)
Battery Backup
Interface
208–240
VAC
Rear of SC 4812ET
RF Cabinet
Rear of SC 4812ET
RF Cabinet
F
SC 4812ET to SC 4812ET DC Power Sharing
and Frame Installation – continued
Apr 2001
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171
Due to the reduction in load capacity of the power cabinet,
the battery/rectifier configuration and number of
sector–carriers that can be supported in the SC 4812ET RF
Cabinet are changed compared to the standard SC 4812ET
documentation. Table G-1 details the recommended
configurations when co–locating two 4812ET RF Cabinets.
IMPORTANT
*
Table F-1: Battery/Rectifier Configuration
Number of
Rectifier Modules Number of
Battery Strings SC 4812ET #1
Sector–Carriers SC 4812ET #2
Sector–Carriers System Battery
Backup Time
(hours)
5 10 3 3 4
6 12 6 3 4
DC Power Interconnect to RF
Cabinet
The objective of this procedure is to connect the DC power cabling to
the RF Cabinet from the Power Cabinet.
ALL power must be removed from the system until all
connections are made to both the RF and Power Cabinet.
Ensure that all breakers in both the RF and Power Cabinet
are turned in the “OFF” (opened) position.
WARNING
Tools and equipment required
The following tools are required to install the power cables:
–Thomas & Betts TBM14 Hydraulic crimping tool with color keyed
crimp die set (or equivalent). Contact Thomas & Betts for
information concerning equivalent tools.
–17 mm socket
–Torque wrench capable of 110 in–lbs
F
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172
Table F-2: Wire, Lug, and Die Table
Wire Size
Motorola Part Number
for Lugs AWG Metric (mm) Welding
(Superflex) Circular
Mills Area
Color and Die
Code
CGDS256306951514 2/0 AWG 60–70 1/0 133,400 BLACK 45
CGDS256306951539 3/0 AWG 85–95 2/0 167,800 ORANGE 50
CGDS256306951515 4/0 AWG 100–107 3/0 211,600 PURPLE 54
CGDS256306951540 N/A N/A 4/0 250,000 YELLOW 62
Power input connections
Figure F-2 shows how the power cable is connected to the RF and Power
Cabinet. Figure 5-1 show the location of the DC power connector in the
RF Cabinet and Power Cabinet.
Figure F-2: Connecting Power Cables
CABLE
GROMMET
LUG COVER
M10 NUT (17 mm Hex
Driver Required)
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
FEED COVER
(Do not remove)
ENCLOSURE
BASE
POWER
INPUT
STUD
Route the cables through the rubber boot BEFORE
crimping lug onto wire or damage to the boot can occur.
CAUTION
F
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Installation Procedure
Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious personal
injury can result.
WARNING
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
CAUTION
Follow the procedure in Table F-3 to install the DC power cables (refer
to Figure F-1, Figure F-2 and Figure 5-1).
Table F-3: Procedure to Install DC Power Cables
Step Action
1Ensure that all three (3) main DC breakers in the Power Cabinet are ”OFF.”
2Route the DC conduit from the I/O area of the Power Cabinet to the I/O area of the RF Cabinet. See
Figure 5-1 for suggested location.
NOTE
This step is omitted if the DC conduit is already installed through the concrete pad.
3Route the three (3) RED +27V feed power cables through the conduit and to the DC power connector
in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
4Route the three (3) BLACK –27V feed power cables through the conduit and to the DC power
connector in each cabinet through the rubber boot (see Figure 5-6) in the floor of the I/O area.
NOTE
The rubber boot is sized to seal either a #2/0 AWG or #4/0 AWG power cable, if a different sized cable
is used other means may be required to ensure a good seal. A tie wrap or hose clamp must be used to
ensure a good seal around the cables at the boot.
5At the RF Cabinet end of each DC power cable, strip insulation equal to the length of the crimping lug
barrel, plus an additional 5 mm (0.2”).
! CAUTION
Route the cables through the rubber boot BEFORE crimping lug onto wire or damage to the boot can
occur.
6Trim the top (tapered end) of the cable grommet to allow the grommet to slide over the cable. Ensure
that the grommet fits firmly around the cable.
7Slide one cable grommet over each cable at the connector box.
. . . continued on next page
F
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Table F-3: Procedure to Install DC Power Cables
Step Action
8Insert the cable into the barrel of the right angle crimp lug.
9Crimp the lug to the cable.
10 Repeat steps 8–9 for the remaining power cable(s).
NOTE
Be sure to observe the polarity of each cable as you install the cables to the power input studs on the
RF Cabinet.
11 Assemble the power cable to the studs as follows:
11a –Place the cable lugs over the power input studs.
11b –Place the M10 flat washer over the stud and on top of the lug.
11c –Place the M10 lock washer over the stud and on top of the flat washer.
11d –Place the M10 nut over the stud and on top of the washer.
! CAUTION
Exceeding the torque limit may damage the stud.
11e –Torque (tighten) nuts to 11–12 N–m (100–110 in–lbs).
12 Repeat steps 11a through 11e for the remaining power cables.
13 Position the lug cover over the base and lock the cover (it will snap) onto the enclosure base.
14 Slide each grommet down the cable and over the cable entry hole.
15 Repeat step 5 through step 14 for the Power Cabinet connections.
16 Verify that DC polarity between the RF and Power Cabinet is correct.
Checks
Check that all AC & DC breakers are turned OFF in both the SC
4812ET RF and Power Cabinet.
Check that the DC Power cables between the Power and RF Cabinets are
connected with the correct polarity.
Confirm that split phase 240/120 AC supply is correctly connected to the
AC Load Center input in the SC 4812ET Power Cabinet.
Failure to connect the proper AC feed will damage the
surge protection module inside the AC Load Center.
CAUTION
F
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Cabling SC 4812ET RF
Cabinet to SC 4812ET RF
Cabinet
The objective of this procedure is to interconnect the cables between two
SC 4812ET RF cabinets.
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned “OFF”.
CAUTION
Tools and equipment required:
Refer to Chapter 5 “Cabinet Cabling” for the tools requirement to
interconnect the cables between two RF cabinets.
Table F-4: Procedure to Interconnect RF Cabinets
Step Action
1Connect the T1 line to each 24–position connector located in the DC I/O area of each RF cabinet.
NOTE
Each RF cabinet requires a separate T1 line and should not be daisy–chained.
2Connect N connector of the RF GPS coaxial cable to DC I/O area of each RF cabinet. Refer to Chapter
5 and Appendix H for connecting RF GPS cables.
NOTE
Each RF cabinet requires a separate RF GPS head and the coaxial cables should not be daisy–chained.
3Connecting the Alarm cable from a RF cabinet to Power cabinet. Refer to Chapter 5 for connecting the
alarm cable.
NOTE
Only one (1) alarm cable is needed from one (1) of the RF cabinets to Power cabinet.
4Connect RF coaxial cables according to the configuration of the ET system. Refer to Chapter 2 “Site
Preparation” for ET system configurations and Chapter 5 for RF cabling.
5Connect RF coaxial cables between two RF cabinets. Refer to Appendix G for connecting SC 4812ET
to SC 4812ET Companion Frame procedures.
Applying AC Power
For instructions on applying AC and DC power to the BTSs refer to the
appropriate BTS Optimization/ATP manual.
F
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Notes
F
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Appendix G: SC 4812ET – SC 4812ET
Companion Frame Installation
This section includes... Scope and Introduction 177. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools Needed 177. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Required documents 177. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing an EMPC in a SC 4812ET RF Starter Frame 178. . . . . . .
Connecting an SC 4812ET Starter BTS to an Companion Frame 178
Tables
Table G-1: Installing an EMPC in the SC 4812ET Starter Frame 178
Table G-2: Connecting 4812ET RF Starter to RF Companion 178.
Figures
Figure G-1: RX Expansion Cabling of 4812ET to 4812ET BTS 179
Scope and Introduction
The purpose of this information is to provide instructions on how to
install a SC 4812ET to SC 4812ET companion frame configuration. This
procedure assumes that the SC 4812ET has been previously installed,
optimized, tested and is in operation.
Interconnection ports are included in the SC 4812ET to SC 4812ET
inter–cabinet cabling diagram (see Figure G-1).
Tools Needed
–10 mm Nut Driver
–TORX T15 Screw Driver
–SMA torque wrench or 5/16” wrench if not available
–Type N torque wrench or 11/16” wrench if not available.
Required documents
–SC 4812ET RF and Power Cabinet Installation manual (Motorola
part number 68P64114A22).
–SC 4812ET RF Cabinet Optimization/ATP manuals (Motorola part
number 68P64114A23 and 68P64114A42).
–SC 614T 2nd Carrier Optimization/ATP manual (Motorola part
number 68P64113A61)
G
SC 4812ET – SC 4812ET Companion Frame Installation
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Installing an EMPC in a SC
4812ET RF Starter
Frame
Table G-1 descripts the procedure for installing an EMPC card needed
when connecting a SC 4812ET expansion frame.
Table G-1: Installing an EMPC in the SC 4812ET Starter Frame
Step Action
1Locate the MPC–B card in the SC 4812ET RF starter frame to be removed.
2Disconnect coaxial cables connecting to the MPC using a 5/16” wrench.
3Slide the MPC–B card out and replace it with the EMPC–B card. Reattach coaxial cable to their
respective location using a 5/16” wrench to 10 in/lbs.
Connecting an SC 4812ET RF
Starter Frame to an SC
4812ET RF Companion
Frame
The procedure to physically connect the cables between the SC 4812ET
RF starter frame to SC 4812ET RF companion frame is shown in
Table G-2
Table G-2: Connecting an SC 4812ET RF Starter Frame to an SC 4812ET RF Companion Frame
Step Action
1Connect T1 line to each 24–position modem connector located in the DC I/O area of each RF cabinet.
2Connect N connector of the RF GPS coaxial cable to DC I/O area of each RF cabinet. Refer to Chapter
5 (Table 5-19 and Table 5-20) and Appendix H for connecting RF GP S cables.
3Refer to Chapter 5 (Table 5-6, Table 5-7 and Table 5-8) for connecting the Alarm cable.
4Connect the RF coaxial cables according to the configuration of ET system. Refer to Chapter 2
(Table 2-3 ) for ET system configurations and Chapter 5 (Table 5-11 and Table 5-12) for the RF
cabling.
5Connect RF coaxial cables between two (2) RF cabinets. Refer to Figure G-1 for connecting the SC
4812ET Starter Frame to the SC 4812ET Companion Frame.
G
SC 4812ET – SC 4812ET Companion Frame Installation
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Figure G-1: RX Expansion Cabling of SC 4812ET to SC 4812ET BTS
SC4812ET Starter
C1 C2
C3 C4
RX
TX1
S
S
RX
TX2
RX
TX3
MPC–A
EMPC–B
1 OUT
2 OUT
3 OUT
RX1A
RX3A
RX2A
RX1A
RX2A
RX3A
Ant–1A
1 IN
2 IN
3 IN
Ant–2A
Ant–3A
C1 C2
C3 C4
C1 C2
C3 C4
FW00407
SC4812ET Expansion
RX
TX1
S
S
RX
TX2
RX
TX3
MPC–A
EMPC–B
RX1A
RX3A
RX2A
RX1A
RX2A
RX3A
Ant–1A
Ant–2A
Ant–3A
C1
C2 C3
C4
C1
C2 C3
C4
C1
C2 C3
C4
RX EXPANSION
1 OUT
2 OUT
3 OUT
1 IN
2 IN
3 IN
SURGE
ARRESTORS
G
SC 4812ET – SC 4812ET Companion Frame Installation
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Notes
G
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Appendix H: Installing RF GPS
This section includes... Introduction 181. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Procedure 182. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF GPS Mounting Considerations 184. . . . . . . . . . . . . . . . . . . . . . .
Tables
Table H-1: Installing the RF GPS 182. . . . . . . . . . . . . . . . . . . . . . . .
Table H-2: Mounting Considerations 184. . . . . . . . . . . . . . . . . . . . .
Figures
Figure H-1: GPS Installation and Parts 183. . . . . . . . . . . . . . . . . . .
Introduction
The objective of this procedure is to install the BTS RF Global
Positioning System Receiver (RF GPS) antenna.
The coaxial cable connecting from the BTS to RF GPS head is a 50 ft.,
1/2” superflex cable with N connectors.
H
Installing RF GPS
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182
Installation Procedure
Table H-1 lists the step of installing the RF GPS system.
Table H-1: Installing the RF GPS
Step Action
1Determine the mounting location (see RF GPS Mounting Considerations in this chapter).
2Install the mounting kit at the RF GPS location of choice. Use the appropriate mounting bolts for
mounting surface.
n WARNING
n
WARNING
The roof structure on which the mounting pole is attached should be verified by a qualified structural
engineer for the weight of the RF GPS engine and mounting hardware or under adverse conditions for
the installation area
! CAUTION
Mounting the RF GPS antenna and hardware to an inadequate roof surface and/or using inadequate
installation methods can result in serious injury.
3Attach the RF GPS head assembly to the post mounting assembly and secure the assembly to the
assembly to the Mounting kit using the screws and nuts supplied (see Figure H-1).
4Attach the Grounding Kit to the mounting pole.
5Connect one (1) N connector of the 50–feet superflex cable to the N jack of the RF GPS antenna cable
and route the other end of the cable down to the RF cabinet.
6Install the cable into the DC I/O area through the conduit I/O plate and via rubber I/O boot. The RF
GPS I/O connection for the cable is listed in Chapter 5.
H
Installing RF GPS
– continued
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Figure H-1: GPS Installation and Parts
FW00410R
4”
3/4”
3”
2”
ANTENNA/PREAMP
(CGDSANT62301)
CABLE ASSEMBLY
(N–DSK) (12” LONG)
RUBBER BOOT
(CGDSANT62301)
1/2” SCREWS
MOUNTING SHROUD
(CGDSMNT62311)
OUTER GASKET
(CGDSMNT62311)
POST
MOUNTING
ASSEMBLY
(CGDS62312)
CABLE RETAINING NUT
(CGDSMNT62311)
‘N’ JACK
(CGDSMCXNJACK)
(SEE NOTE 1)
ADJUSTABLE
FROM 33.5” TO 47”
‘N’ JACK
CONNECTOR
MOUNTING &
GROUNDING KIT
(CGDS2417071)
50 FT SUPERFLEX JUMPER
W/’N’–MALE CONNECTORS
(CGDS241148A2) TO BTS
ROOF
NOTE:
1. TOTAL WEIGHT FOR GPS ANTENNA
ASSEMBLY – 0.65 LBS.
REF TO
(CGDSMCXNJACK)
H
Installing RF GPS
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184
RF GPS Mounting
Considerations
The RF GPS Head requires specific mounting considerations in order to
properly observe the GPS satellites.
Table H-2: Mounting Considerations
nConsideration
1The mounting pipe for the RF GSP Head should be mounted vertically with less than five (5)
degrees of tilt.
2The RF GPS Head requires a clear view of the sky, preferably to within ten (10) degrees of the
horizon in all directions. The less sky that can be observed the fewer the number of potential
satellites that can be tracked resulting in poorer RF GPS performance.
3For general operation, the RF GPS Head needs to be able to continuously track signals from at
least four (4) GPS satellites. It is theoretically possible to operate the BTS with only one (1) GPS
satellite visible, however, operating in this mode is not recommended and requires an accurate site
survey.
4Place the RF GPS Head where RF obstructions of the sky are minized. The “sky” includes
everything to within ten (10) degrees of the horizon in all directions. RF obstructions include
buildings, towers, snow, foliage and debris.
5Separate the RF GPS Head from other radiating sources. Excessive RF energy can degrade the RF
GPS Head’s ability to observe the GPS satellites. The RF GPS Head receives on the GPS L1
frequency of 1575.42 MHz and has filters incorporated within to minimize the effects of potential
RF interference, however, strong radiants can overwhelm the filters, thus degrading the units
reception capability.
6The RF GPS Head is rated for ambient air temperatures from –40 degrees C to + 50 degrees C,
and has ratings for humidity, shock, waterproof, UV light resistance, vibrations, salt, fog, ESD,
EMI, and altitude.
7If the overall length from the RF GPS Head to the BTS is greater than 50 feet, the cable style and
length should be determined by the site configurations. The maximum loss should be less than
4.5 dBm @ 1575 MHz for all cabling and connections between the GPS Head and the RF cabinet.
A 1/2” cable “pigtail” should always be used to exit the
cabinet before transitioning to a larger cable. This will
ensure a proper seal on the rubber I/O boot. It is suggested
that the supplier cable be cut to the desired length to
achieve this.
NOTE
H
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Appendix I: Minimum CSU Requirements
for SC 4812ET BTS
This section includes... CSU Requirements 185. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
Table G-1: Network Interface (8–pin RJ48C Connector) 178. . . . . .
Table I-2: Terminal Interface (8–pin RJ48C Connector) 187. . . . . .
Table I-2: Power Connector 187. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CSU Requirements
The FCC requires Part 68 compliance on any chosen unit must be tested
as part of the whole system, including cabling and punch block external
interface. The user is responsible for this certification on any unit other
than the Motorola supplied CSU.
The following is a list of minimum CSU requirements listed for both
North American and International installations.
Operating Temperature Range:
–20_C to +60_C (the temperature seen inside the BTS range from
–10_C to +57_C )
Cold Start:
The CSU must be able to withstand a “cold start” from –40_C without
damage.
Physical Dimensions:
The standard 19” rack, 1–5 rack units high. The CSU may not extend
greater than 2.5” in front of the option mounting rails.
Power:
Must operate from 21V to 30V (27V nominal)
Power (Maximum):
Less than 100W for option shelf equipped with all necessary CSU
equipment. There are a total of three (3) breakers (10A each for options.
The total current pulled from all three (3) breakers cannot exceed 15A.
I
Minimum CSU Requirements for SC 4812ET BTS
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T1 Span Requirements:
–Nominal Line Rate: 1.544 Mbps
–Line Impedance: 100 Ohms
–Line Code: AMI or B8ZS
–Framing Format: SF or ESF per ANSI T1.403, ITU–T G.704
Terminal Interface:
–Shorthaul: ANSI T1.102, ITU–T G.703
–Input: DSX–1 to –10 dB
–Output: DSX–1 with equalization up to 655 feet.
Network Interface:
–Longhaul: ANSI T1.403, ITU–T G.703
–Input: DSX–1 to –27.5 dB
–Output: Per ANSI T1.403 with line build–out to 15 dB.
Lightning Protection:
Withstands lightning surges defined per FCC Part 68 and recovers (see
note below)
Part 68 compliance on any chosen unit must be tested as
part of the whole system, including cabling and punch
block external interface. The user is responsible for this
certification on any unit other than the Motorola supplied
CSU.
NOTE
Regulatory – Domestic USA:
–FCC Compliance: Part 68, Part 15, Class B (see note above)
–Safety: UL1950: For a CSU external to the SC 4812ET, the
requirement is to be an approved CSU, with testing performance by
an NRTL (e.g. Underwriters Laboratories, CSA, ETL). For a CSU
which is to be fitted inside the SC 4812ET, ONLY UL listing is
acceptable.
Recommended:
Compliance to the requirements of Bellcore GR–1089.
E1 Span Requirements:
–Nominal Line Rate: 2.048 Mbps
–Line Code: AMI or HDB3
–Framing Format: Per ITU–T G.704
Terminal Interface:
–Line Impedance: 120 Ohms
–Compliance: Per ITU–T G.703
I
Minimum CSU Requirements for SC 4812ET BTS
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Apr 2001
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Network Interface:
–Line Impedance: 120 Ohms (75 Ohms may require external adapter)
–Compliance: Per ITU–T G.703
Regulatory – International:
Safety: For a CSU external to the SC 4812ET, the requirement is to be
an certified CSU, with testing performance by a National Certification
Body (NCB) participating in the CB scheme under IEC60950.
Additional compliance requirements unique to E1 are not know at this
time. No additional compliance–testing specific to E1 has been
completed. The User is responsible to ensure that the chosen unit
complies with local regulatory requirements.
Cable Connections:
The cables necessary to connect to the CSU are pre–installed in the SC
4812ET frames. There are three (3) types of connections: network
interface (to the punch block of the BTS), terminal interface (to the GLI
board inside the BTS), and power. The pinout for the cables is given in
Table G-1, Table I-2, and Table I-3.
Table I-1: Network Interface (8–pin RJ48C Connector)
Pin# Circuit Name
1RxD data (T1)
2RxD data (R1)
4TxD data (T)
5TxD data (R)
7,8 Optional Shield
3,6 No Connection
Table I-2: Terminal Interface (8–pin RJ48C Connector)
Pin# Circuit Name
1RxD data (T1)
2RxD data (R1)
4TxD data (T)
5TxD data (R)
7,8 Optional Shield
3,6 No Connection
I
Minimum CSU Requirements for SC 4812ET BTS
– continued
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SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001
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Table I-3: Power Connector
Pin# Circuit Name
1 +V
2 Ground
3–V
I
Apr 2001 SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Index
Numbers
110 style punch block, 81, 96
208–265 VAC, 36
208/240 VAC power cables, 102
A
A/C load center/breaker panel, 102
AC Current Requirements, 105
AC Load Center, 103
AC Power Cabling, 73
AC Power connection, 36
AC power pedestal, 30, 31, 103
Adequate ventilation, 31
Alarm and span line cable pin/signal information, 99
alarm and span line cabling, 81, 96
Alarm Signal, 73
Alarm signal specifications, 85
Alarm Span Line and Modem Cable Install Procedure, 83,
89, 91, 98
Amps non–continuous, 103
AMR, 23
anchor bolts, 38, 61
Antenna Cables 120 Degree Sector Configuration, 92
Antenna Panel, 81
antistatic plastic, 107
B
backup durations, 34, 118
Batteries Installed, 70
Battery Heater, 59, 66
Battery Mounting, 65
Battery strings, 33
battery strings, 68
Battery Strings Required – Minimun, 33
BBX–1, 24
breaker size, 103
BTS Cabinet, 24
BTS Cable Descriptions and Part Numbers, 78
BTS transmit and receive path cabling , 93
building codes, 41
C
C–CCP, 58
C–CCP shelf, 23
Cabinet Clearances, 27
Cabinet installation categories, 30
Cable descriptions , 78
Cable Loss and Bend Radius – Heliax , 35
Cable Pin/signa, 73
Cables Required for AC Power, 104
Cables Required for Earth Grounding, 80, 83, 88, 90, 91,
95, 98
Cabling, 62, 64, 65, 69
Cabling Diagram, 73
Cabling Installation Order, 75
CADWELD Joints, 42
carton, 54
CCD, 23
Checklist, 108
CIO, 23
Cleanup the Site, 107
clearance, 31
Index – continued
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001190
Concrete Mounting – Existing Pad, 61
concrete pad, 42
Concrete Pad and Ground System Installation, 42
Concrete pad and ground system installation, 43
Conduit Stub Height Detail, 44
conduit/cable entrance layout, 41
connect the DC battery backup, 99, 140, 159
Connection Materials, 42
crates, 54
CSM, 23
Customer I/O, 23
D
Dangerous voltages, 103, 131
DC Power Cables, 101, 142, 161
DC Power Connect, 73
DC Power Connection, 37
Demarcation Document, 14
Dimensions and Clearances, 26
Dimensions and clearances, 26, 27
documents, 13
Door closure problems, 41
Double–D, 146
Double–D Hole, 148
Drill mounting holes in pad, 38
Duplexer/Directional Coupler DDC, 22, 23, 26
dust masks, 38
E
ear plugs, 38
earth ground, 41
earth ground cables, 80, 95
Elevated Substructure, 64
Equipment identification, 52
Excessive RF energy, 49
Existing Concrete Pad Mounting – Preparation, 37
Exothermic, 43
expansion or optional equipment, 31
External alarm connector characteristics and requirements,
85
External FRUs, 20
eye–bolts, 62
F
flush, 37
Framing Materials – Concrete Pad, 42
FRU, 108
G
GLI2, 23
Global Positioning System, 87, 111
gravel, 43
ground ring, 41
Ground Rods, 42
Ground System Installation Procedure, 43
Ground Wire Connection, 36
grounding, 31
Grounding Guidelines for Cellular Radio Installations, 14
Grounding Ring , 44
Grounding Ring Detail, 44
H
handling batteries, 68
Heat Exchanger, 60
Heliax, 35
High Leakage current, 103, 131
How the frames are shipped , 53, 54
HSO, 23
I
Indoor Location Preparation, 30
Input and Output Cabling, 81, 96
Inspect, 58
Inspect for Damage, 51, 58
Install the concrete pad and ground system, 43
Installation completion checklist, 108
Index – continued
Apr 2001 SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT 191
Installation Hardware, 16
Installing Batteries, 59
Installing Batteries in the Power Cabinet, 68
Installing the Remote GPS Hardware, 13
insulated, 31
inter-cabinet ca, 74
Intercabinet I/O, 76
Internal FRU, 25
Internal FRUs, 22
K
Knife or Scissors, 51
L
LFR Cable (if applicable), 36
Lightning protection, 37, 41
Linear Power Amplifier LPA, 20
load carrying limits, 40
Load Center Wiring, 105
Loading Considerations, 32
Local Electrical Codes, 103
M
Main Ground Bar, 76
Main RF Cable, 36
major components, 19
Materials Needed – Outdoor Location, 34
Maximum cable size, 103
minimum bend radius, 41
minimum clearances, 30, 34
Minimum Site Clearances, 28
Motorola Advanced Wideband Interface MAWI, 21
Motorolas guidelines, 41
Mounting Bolt Configuration, 63
mounting brackets, 61
Mounting Hole Dimensions, 46, 76, 117, 119
mounting pipe, 48
mounting surface, 30, 37
MPC, 23
N
New Concrete Pad Preparation, 41
New Concrete Pad Mounting, 64
O
Optimization, 107
Optimize the System, 110
Outdoor Location Preparation, 34
P
packed, 53
Pad Forms and Conduit Layout, 45, 46, 119
Power Cabinet Alarm Cable, 37
Power Cabinet Battery Cabling, 68
Power cable, 104
Power input connections , 100, 140, 160
pre–existing concrete pad, 61
pre–installed, 42
precast concrete, 42
Procedure for Bottom Access Installation, 94
Procedure for Side Wall Installation, 94
Procedure to Install Earth Grounding Cables, 80, 95
Procedure to Install Power Cables, 104
Procedure to Install the GPS and LFR Cabling, 94
Procedure to Unpack a BTS Cabinet, 54, 55
Product Description, 12
puddling, 40
Punch Block, 82, 84, 97
R
rainwater, 42
Re–install Access Panel, 138
rebars and dry wells, 43
Receive Distribution Card RXDC, 26
Remove protective covering, 107
Removing the Front Doors, 59, 60
Index – continued
DRAFT
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual Apr 2001192
Report any damage, 58
Required documents, 13, 14, 17, 18
RF Cabinet Alarm Cable Connection, 36
RF Cabinet Span and Modem Cable Connection, 36
RF GPS Cable, 36
RF I/O area, 94
RF I/O Plate, 93
RF interference, 49
RGPS Cable, 36
RGPS Head, 48
RGPS Mounting Considerations, 48
Roof load carrying limits, 63
ROOFTOP , 32
Rooftop Mounting Preparation, 40
Rooftop Elevated Mounting Procedure, 41
Rooftop Elevated Substructure Mounting, 63
S
Safety glasses, 38
safety glasses, 38
satellites, 48
Scope of Document, 12
sector configuration, 92
Sector/Carrier Configurations, 92
shipped fully assembled, 53
Shipping Crate, 56, 57
shop vacuum, 40
Side Cable Entry Hole Preparation, 146
Simplified Cabinet Cabling Diagram, 77
Site Document, 13
Site preparation – Overview, 30
sky, 49
snow loading, 32
Static sensitive equipment, 58, 75
submersion, 31, 34, 40
surges, 103, 131
T
Telco Interface Board TIB, 26
Tin Snips, 51
Tools and equipment required, 99, 140, 159
Transmission Lines – RF, 35
Transmit/Receive Module TRX, 25
trenches, 43
U
Unpack/Upright Procedure , 54
unpacking process, 52
V
vandalism, 31, 34
Views of Cabinet Side Walls below Shroud, 147
W
Weight, 33
weight, 32
Whats Next and Cleanup, 13
windstay latch, 60
wrist strap, 75
wriststrap, 58
Z
Zoning requirements, 32