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

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Date Submitted2001-07-27 00:00:00
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Document TitleIHET6BM1 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
800/1700/1900 MHz
CDMA
English
Apr 2001
68P09253A94–1
SCt4812ET RF and Power Cabinet Hardware
Installation 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
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
Table of Contents
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
Release 2.16.0
This manual includes...
Chapter
Version Description
Front
V00.04
Foreword, General Safety, Revision History, Patent
Notification
V01.03
Introduction
13
V02.03
Site Preparation
33
V03.03
How to Unpack the SC 4812ET BTS
59
V04.03
Cabinet Mounting
67
V05.03
Cabinet Cabling
81
V06.03
What’s Next and Cleanup
119
V0A.03
Installing RGPS
123
VOB.03
Cabinet Specifications
127
VOC.03
Hardware Installation Quickstart
137
VOD.03
SC 4812ET/SC 614 BTS Power Sharing
145
V0F.02
SC 4812ET – SC 614/SC 614T Companion Frame
Installation
157
V0F.02
SC 4812ET to SC 4812ET Power Sharing
169
VOG.01
SC 4812ET – SC 4812ET Companion Frame
Installation
185
VOH.01
Installing RF GPS
181
VOI.01
Minimum Requirements for CSU
185
Index
Apr 2001
V00.04
Page
189
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Foreword
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:
NOTE
Presents additional, helpful, non-critical information that
you can use.
IMPORTANT
Presents information to help you avoid an undesirable
situation or provides additional information to help you
understand a topic or concept.
CAUTION
Presents information to identify a situation in which
equipment damage could occur, thus avoiding damage to
equipment.
WARNING
Presents information to warn you of a potentially
hazardous situation in which there is a possibility of
personal injury.
. . . continued on next page
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
V00.04
Foreword
– continued
The following typographical conventions are used for the presentation of
software information:
S In text, sans serif BOLDFACE CAPITAL characters (a type style
without angular strokes: i.e., SERIF versus SANS SERIF) are used to
name a command.
S In text, typewriter style characters represent prompts and the
system output as displayed on an operator terminal or printer.
S In 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.
S In 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
Apr 2001
V00.04
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Foreword
– continued
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 . . . . . . . . .
Arlington Heights, International .
Cork, Ireland . . . . . . . . . . . . . . . .
Swindon, England . . . . . . . . . . . . .
800–433–5202
+1–847–632–5390
44–1793–565444
44–1793–565444
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
V00.04
General Safety
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:
S not 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.
S not replace components with power cable connected. Under certain
conditions, dangerous voltages may exist even with the power cable
removed.
S always 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.
Apr 2001
V00.04
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
General Safety
– continued
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.
WARNING
Dangerous voltages, capable of causing death, are present in this
equipment. Use extreme caution when handling, testing, and
adjusting .
10
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
V00.04
Revision History
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
Apr 2001
Apr 2001
V00.04
Remarks
Original draft from engineering
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
11
Patent Notification
Patent numbers
This product is manufactured and/or operated under one or more of the
following patents and other patents pending:
4128740
4193036
4237534
4268722
4282493
4301531
4302845
4312074
4350958
4354248
4367443
4369516
4369520
4369522
4375622
4485486
4491972
4517561
4519096
4549311
4550426
4564821
4573017
4581602
4590473
4591851
4616314
4636791
4644351
4646038
4649543
4654655
4654867
12
4661790
4667172
4672657
4694484
4696027
4704734
4709344
4710724
4726050
4729531
4737978
4742514
4751725
4754450
4764737
4764849
4775998
4775999
4797947
4799253
4802236
4803726
4811377
4811380
4811404
4817157
4827507
4829543
4833701
4837800
4843633
4847869
4852090
4860281
4866710
4870686
4872204
4873683
4876740
4881082
4885553
4887050
4887265
4893327
4896361
4910470
4914696
4918732
4941203
4945570
4956854
4970475
4972355
4972432
4979207
4984219
4984290
4992753
4998289
5020076
5021801
5022054
5023900
5028885
5030793
5031193
5036515
5036531
5038399
5040127
5041699
5047762
5048116
5055800
5055802
5058136
5060227
5060265
5065408
5067139
5068625
5070310
5073909
5073971
5075651
5077532
5077741
5077757
5081641
5083304
5090051
5093632
5095500
5105435
5111454
5111478
5113400
5117441
5119040
5119508
5121414
5123014
5127040
5127100
5128959
5130663
5133010
5140286
5142551
5142696
5144644
5146609
5146610
5152007
5155448
5157693
5159283
5159593
5159608
5170392
5170485
5170492
5182749
5184349
5185739
5187809
5187811
5193102
5195108
5200655
5203010
5204874
5204876
5204977
5207491
5210771
5212815
5212826
5214675
5214774
5216692
5218630
5220936
5222078
5222123
5222141
5222251
5224121
5224122
5226058
5228029
5230007
5233633
5235612
5235614
5239294
5239675
5241545
5241548
5241650
5241688
5243653
5245611
5245629
5245634
5247544
5251233
5255292
5257398
5259021
5261119
5263047
5263052
5263055
5265122
5268933
5271042
5274844
5274845
5276685
5276707
5276906
5276907
5276911
5276913
5276915
5278871
5280630
5285447
5287544
5287556
5289505
5291475
5295136
5297161
5299228
5301056
5301188
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
5301353
5301365
5303240
5303289
5303407
5305468
5307022
5307512
5309443
5309503
5311143
5311176
5311571
5313489
5319712
5321705
5321737
5323391
5325394
5327575
5329547
5329635
5339337
D337328
D342249
D342250
D347004
D349689
RE31814
Apr 2001
V00.04
1
Chapter 1: Introduction
This section includes...
Apr 2001
V02.03
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
14
Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
15
16
18
20
Materials Available from Motorola . . . . . . . . . . . . . . . . . . . . . .
RF Cabinet External FRUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Cabinet Internal FRUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Internal FRUs . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
23
25
27
28
Enclosure Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enclosure Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
30
Tables
Table 1-1: Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1-2: Installation Hardware Supplied with Cabinets . . . . .
Table 1-3: Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . .
Table 1-4: Cables, Tools and Hardware . . . . . . . . . . . . . . . . . . .
Table 1-5: Cabinet Dimension . . . . . . . . . . . . . . . . . . . . . . . . . .
16
18
20
21
29
Figures
Figure 1-1: SC 4812ET Installation Hardware . . . . . . . . . . . . . .
19
Figure 1-2: SC 4812ET RF Cabinet . . . . . . . . . . . . . . . . . . . . .
Figure 1-3: RF Cabinet External FRUs . . . . . . . . . . . . . . . . . . .
Figure 1-4: SC 4812ET LPAs . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1-5: External Blower Assembly (EBA) . . . . . . . . . . . . .
Figure 1-6: RF Cabinet Internal FRUs . . . . . . . . . . . . . . . . . . .
22
23
23
24
25
Figure 1-7: Power Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1-8: Power Cabinet with Batteries Installed . . . . . . . . .
Figure 1-9: Minimum Cabinet Clearances . . . . . . . . . . . . . . . . .
Figure 1-10: Min. Site Clearances for SC 4812ET Cabinets . .
27
28
30
31
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
13
1
Introduction
– continued
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 SC4812ET 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.
14
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
V02.03
Introduction
– continued
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:
S SC 4812ET CDMA Optimization (Motorola part number
68P09253A74)
S SC 4812ET Field Replaceable Unit (FRU) Identification Guide
(Motorola part number 68P09253A48)
Apr 2001
V02.03
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
15
1
Introduction
– continued
S Site 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
S Demarcation Document (Scope of Work agreement)
S Grounding Guidelines for Cellular Radio Installations (Motorola part
number 68P81150E62)
S Installation 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
AMR
AWG
BBX–1X
BSS
BTS
BSWG
CBSC
CCD
C–CCP
CDMA
CHI
CIO
CSM
CSU
DRDC
DS1
EBA
EMX
EMPC
16
Definition
Alarm Monitoring and Reporting Card
American Wire Gauge
Broadband Transceiver Cards
Base Station System
Base Transceiver Subsystem
British Standard Wire Gauge
Centralized Base Station Controller
CDMA Clock Distribution card
Combined CDMA Channel Processor
Code Division Multiple Access
Concentration Highway Interface
Combiner Input/Output
Clock Synchronization Manager
Channel Service Unit
Duplexer/Receiver Filter/Directional Coupler
One Time Slot on T1 Span Line
External Blower Assembly
Electronic Mobile Exchange
Expansion Multicoupler Preselector Card
. . . continued on next page
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
V02.03
Introduction
– continued
Table 1-1: Acronyms
Acronym
EMPC6
ETIB
FRU
GLI2
GPS
GFCI
HSO
HSOX
IIP3
ISB
LAPD
LAN
LPA
LPAC
LFR
LMF
MCC–1X
MMI
MPC
MGB
OSP
PB
PCSC
PSTN
PN
POTS
PS
RGD
RGPS
RFDS
RX
SS
SAPB
STLPA
STRAU
TCH
Apr 2001
V02.03
Definition
Expansion Multicoupler Preselector Card (for 6–sector)
SC 4812ET Interface Board
Field Replaceable Unit
Group Line Interface 2
Global Positioning Subsystem
Ground Fault Circuit Interrupter
High Stability Oscillator
High Stability Oscillator Expansion Board
Input Intercept Point
Inter–shelf Bus
Link Access Protocol “D”
Local Area Network
Linear Power Amplifier
LPA Control Board
Low Frequency Receiver
Local Maintenance Facility
Multi–channel CDMA Card
Man–Machine Interface
Multicoupler/Preselector Card
Main Ground Bar
Outside plant
Punch Block
Personal Communications Switching Center
Public Switched Telephone Network
Pseudo–Random Noise
Plain Old Telephone System
Power Supply
Remote GPS Distribution
Remote Global Positioning System (GPS) Receiver
Radio Frequency Diagnostic Subsystem
Receive
Stainless Steel
Stand Alone Pilot Beacon
Single Tone Linear Power Amplifier
SuperCell Transcoder Rate Adaption Unit
Traffic Channel
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1
Introduction
– continued
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
18
RF
Power
Description
7/16” Hex Tool
ESD Wrist Strap
Cabinet Mounting Brackets
M12 x 30 Bolts (for Mounting Brackets)
Insulating Shoulder Washer (for Mounting Bolts)
5/8” Bolts (to replace eye bolts)
Compression Lug (for #2 AWG Ground Wire)
M6 Stainless Steel Locking Hex Nuts (for Ground Lug)
M12 x 100 Bolt
16
M12 Flat Washer
M12 Lock Washer
M12 Nut
Motorola Ivory Touch–Up Paint
M6 Flat Washer
M10 Nut
M10 Flat Washer
M10 Lock Washer
5/8” Flat Washer
Large Flat Washer
–
Weatherseal Bushing and Nut for RGPS Cable
–
MMI Cable
–
12
Battery Terminal Straps
–
#2/0 AWG INS WELD Cable (Red)
–
#2/0 AWG INS WELD Cable (Black)
–
12
90° Compression Lug (for #2/0 AWG DC Cable)
–
Twisted Pair Cable (for Power Cabinet Alarms to RF Cabinet)
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Introduction
– continued
Figure 1-1: SC 4812ET Installation Hardware
M12 X 30 BOLT
5/8” FLAT
WASHER
LARGE FLAT
WASHER
5/8” BOLT
M12 NUT
M12 FLAT
WASHER
INSULATION SHOULDER
WASHER
WEATHERSEAL
BUSHING & NUT
M10 NUT
M12 X 100
M10 FLAT
WASHER
M6 NYLON
LOCKING NUT
M12 LOCK
WASHER
M6 FLAT WASHER
FW00468
COMPRESSION LUG (FOR
#2 AWG GROUND WIRE)
Apr 2001
V02.03
M10 LOCK
WASHER
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1
Introduction
– continued
Recommended Tools
Table 1-3 lists tools recommended for installing RF and Power Cabinets.
Table 1-3: Recommended Tools
Item
Tool Description
Tin Snips
Wire Brush
Knife or Scissors
10 mm Nut Driver
19 mm (3/4”) Open ended Torque Wrench (for N–type
connector)
110 Style Punch Block Termination Tool
Thomas & Betts TBM14 Hydraulic crimping tool with color
keyed crimp die set (or equivalent)
Drill Motor
18 mm (11/16”) Masonry Drill Bit
Ratchet Handle with 19 mm (3/4”) Socket (Deep Socket or
Ratchet Extension required).
Torque Driver (Torque Range: 5–135 N–m [4–100 ft–lbs])
with 19 mm (3/4”) and 10 mm Socket
Torque wrench for SMA’s Mountz Inc. MTBN2 (Part number
020314) with 5/16” open end head (Part number 020402).
Copper–based Conductive Grease (Berndy “Penetrox” or
equivalent).
10
11
12
13
20
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Introduction
– continued
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
Cables
Part Number
CGDSRG142BU
SGDN4232A
SGDN4234A
SGDN4235A
SGDN4233A
CGDSFSJ450B
CGDSFSJ150A
CGTDN7023A
CGTDN7025A
CGTDN7027A
CGDS241148
CGDSICPVC25FT
CGDS237776
CGDS237176
Tools
Hardware
Apr 2001
V02.03
CGDSTBM25S
CGDS97400036
Description
RG – 142 COAX by the foot
1/2” LDF Heliax by the foot
7/8” LDF Heliax by the foot
1–1/4” LDF Heliax by the foot
1–5/8” LDF Heliax by the foot
1/2” Superflex Heliax by the foot
1/4” Superflex Heliax by the foot
Transmission Line Kit for 1/2”
LDF Heliax
Transmission Line Kit for 7/8”
LDF Heliax
Transmission Line Kit for 1–5/8”
LDF Heliax
1/2” Superflex Jumper – 30 ft. (1
N Male terminated, 1 N Male
non–terminated)
25 Twisted pair cable – 24 AWG
110 Punchdown Tool (Handle
only)
Replacement Blade for use with
110 Punchdown Tool
Crimp Tool for Compression Lug
Earthquake Expansion type Anchor Bolt
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1
Introduction
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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.
CAUTION
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.
Figure 1-2: SC 4812ET RF Cabinet
RF I/O
Area Cover Plate
Main Door
Rear Conduit Panel
LPA Door
(Can only be opened after Main Door is open)
22
Rear I/O Door
Rear DC Conduit Panel
FW00189
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Introduction
– continued
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
External Blower
Assembly (EBA)
Note:
LPA Compartment
door not shown for
clarity
LPA
Unpopulated LPA
Shelf Cover
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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1
Introduction
– continued
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.
CAUTION
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.
Figure 1-5: External Blower Assembly (EBA)
FW00192
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Introduction
– continued
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
EBA
ETIB
CCP Fans
RFDS
C–CCP Shelf
5 RU Rack Space
Combiner
Cage
OPTIONAL AREA
DC
Power
Dist.
Punch
Block
(back)
Circuit
Breaker Panel
DRDC/TRDC
LPA Trunking
Backplane
LPA’s
FW00163
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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1
Introduction
– continued
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:
S High Stability Oscillator (HSO)/LFR (Optional) card
S Clock Synchronization Manager (CSM) on 2 cards (one with GPS
receiver if ordered).
CDMA Clock Distribution (CCD) cards (2)
Power Supply cards (2 minimum, 3 maximum)
Multicoupler Preselector Cards (MPC) (2)
Alarm Monitoring and Reporting (AMR) cards (2)
Multi Channel CDMA [MCC–1X (8E or 24), MCC–1X (8E/24)]
cards (up to 12)
Broadband Transceiver (BBX–1X) cards (up to 13)
Combined Input/Output (CIO) (1)
Group Line Interface (GLI2) cards (2)
BBX2 Switch card (1)
Modem (optional)
Filler Panels
Fan 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.
26
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Introduction
– continued
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
Battery Door
Rear I/O
Door
Rear DC
Conduit Panel
Main Door
Rear AC Conduit
Panel
FW00193
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1
Introduction
– continued
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)
Rectifier
Alarm
Module
Temperature
Control
Module
Rectifier
Shelves
Batteries
(Battery
Heaters
located under
batteries)
AC Outlet
Cover
NOTE
Punch Block
is not visible
in this view.
DC
Circuit
Breakers
AC
Load
Center
FRONT VIEW POWER CABINET
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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Introduction
– continued
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)
NOTE
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”).
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1
Introduction
– continued
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
0mm
(0I)
130mm
(5I)
1550mm
(61I)
1880mm
(74I)
0mm
(0I)
660mm
(26I)
Power Cabinet
1372mm
(54”)
1651mm
(65I)
2515mm
(99I)
0mm
(0I)
NOTE
Not To
Scale
510mm
(20I)
RF Cabinet
1220mm
(48”)
1421mm
(56I)
2363m
(93I)
0mm
(0I)
255mm
(10I)
1676mm
(66I)
1803mm
(71I) FW00104
. . . continued on next page
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Introduction
– continued
Figure 1-10: Minimum Site Clearances for SC 4812ET Cabinets
130 mm
(5”)
1143 mm
(45”)
Power
Cabinet
660 mm
(26”)
330 – 610 mm
(13” – 24”)
3430 – 3710 mm
(135 – 146”)
RF Cabinet
660 mm
(26”)
1143 mm
(45”)
2515 mm
(99”)
130 mm
(5”)
FW00105
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”)
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1
Introduction
– continued
Notes
32
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2
Chapter 2: Site Preparation
This section includes...
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rooftop Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Weight Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SC 4812ET RF Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum Battery Count for Power Cabinet . . . . . . . . . . . . . . .
Outdoor Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Materials Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Existing Concrete Pad Mounting . . . . . . . . . . . . . . . . . . . . . . . .
Drilling Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drilling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rooftop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rooftop (Elevated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New Concrete Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connection Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Concrete Pad and Ground System Installation . . . . . . . . . . . . . .
RGPS Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . .
34
34
36
36
37
42
42
43
46
47
47
49
50
50
51
51
57
Tables
Table 2-1: DC Cabling Size – Maximum Cable Length . . . . . .
Table 2-2: Approximate Weight of SC 4812ET BTS . . . . . . . . .
Table 2-3: SC 4812ET FRU Configurations – Duplexed . . . . . .
Table 2-4: SC 4812ET FRU Configurations – Non–Duplexed .
Table 2-5: Min Battery Strings Required Sector–Carrier Configs
Table 2-6: Heliax Cable Loss and Minimum Bend Radii . . . . .
Table 2-7: Number of wires in Conduit . . . . . . . . . . . . . . . . . . .
Table 2-8: Drilling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2-9: Concrete Pad & Ground System Install Procedure . .
36
37
38
38
42
44
44
47
52
Figures
Figure 2-1: Drill Stabilization . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2-2: Mounting Hole Drilling and Cleaning . . . . . . . . . . .
48
49
. . . continued on next page
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Site Preparation
– continued
Figure 2-3: Grounding Ring Detail . . . . . . . . . . . . . . . . . . . . . .
Figure 2-4: Conduit Stub Height Detail . . . . . . . . . . . . . . . . . . .
Figure 2-5: Cabinet Dimensions . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2-6: Pad Forms and Conduit Layout . . . . . . . . . . . . . . . .
Figure 2-7: Mounting Hole Dimensions . . . . . . . . . . . . . . . . . . .
Figure 2-8: SC 4812ET RF Cabinet Conduit I/O . . . . . . . . . . . .
Figure 2-9: SC 4812ET Power Cabinet Conduit I/O . . . . . . . . .
53
53
54
55
55
56
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.
WARNING
Every effort should be made to provide a safe working area
for all installation and service personnel.
CAUTION
The mounting surface must be flat. Door closure problems
may occur if the cabinets are not installed on a flat surface.
IMPORTANT
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.
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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Site Preparation
– continued
– 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
4/0 AWG
96.8 (Superflex)
54 (Duraflex)
6.7 m (22 ft)
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.
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Site Preparation
– continued
Rooftop Location
In addition to the Indoor location considerations, the following
additional items should be considered when choosing a Rooftop
location:
WARNING
Roof load carrying limits must be reviewed and an
appropriate support structure must be installed to support
the cabinets as required.
CAUTION
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.
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).
NOTE
The Power Cabinet as shipped without batteries installed
can weigh up to 544 kg (1200 lbs.).
– 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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Site Preparation
– continued
Table 2-2: Approximate Weight of SC 4812ET BTS
# of Sectors
– Carriers1
12
RF Cabinet2
Power Cabinet3
Total Weight
Weight/Area
Total Weight
Weight/Area
570 kg (1260 lbs)
610 kg (1340 lbs)
644 kg (1420 lbs)
680 kg (1500 lbs)
563 kg/m2 (0.8 psi)
602 kg/m2 (0.85 psi)
636 kg/m2 (0.91 psi)
671 kg/m2 (0.95 psi)
1015 kg (2240 lbs)
1206 kg (2660 lbs)
1400 kg (3080 lbs)
1590 kg (3500 lbs)
1002 kg/m2 (1.84 psi)
1192 kg/m2 (1.7 psi)
1383 kg/m2 (2.0 psi)
1571 kg/m2 (2.2 psi)
NOTE
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).
Apr 2001
V02.03
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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37
Site Preparation
– continued
Table 2-3: SC 4812ET FRU Configurations – Duplexed
BTS 1 – Starter
Con–
fig
Ttl #
Sec
Car
VH
LPAs
Trnk
Mod
4812
DBPF
4812
2:1
Cmbr
BTS 2 – Expansion
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
car
3 opt
3 opt
car
3 opt
3 opt
Add Tx cable trunking module
to DBPF/conbiner.
None
car
12
3 opt
Add Tx cable trunking module
to DBPF/ combiner. Recable
Starter Tx to add combiners
Take down
ALL Tx
car
12
16
NA
3 opt
Add Tx cable trunking module
to combiner. Recable Starter Tx
to add combiners
Take down
Carrier 3
Tx
3 opt
3 opt
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.
car
15
16
NA
NA
6 (3
opt)
car
18
16
NA
NA
6 (3
opt)
NA
3 opt
3 opt
Add Tx cable trunking module
to DBPF/combiner. Recable
Exp Tx to add combiners
Take down
Carrier 5
Tx
car
21
16
NA
NA
6 (3
opt)
12
NA
Add Tx cable trunking module
to combiner
Take down
Carriers 5
and 6 Tx
car
24
16
NA
NA
6 (3
opt)
16
NA
Add Tx cable trunking module
to combiner
None
car
6–opt
NA
12
12
car
12
16
6–opt
NA
12
12
Add Tx cable trunking module
to DBPF/combiner
None
NA
12(6–
opt)
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
6 Sector
car
18
16
NA
6–opt
NA
. . . continued on next page
38
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Site Preparation
– continued
Table 2-3: SC 4812ET FRU Configurations – Duplexed
BTS 1 – Starter
Con–
fig
Ttl #
Sec
Car
VH
LPAs
Trnk
Mod
car
24
16
car
24
16
BTS 2 – Expansion
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
NA
NA
6 (3
opt)
16
NA
Add Tx cable trunking module
to combiner
NA
NA
12(6–
opt)
16
NA
NA
Add Tx cable trunking module
to combiner. Recable Exp Tx to
add combiners
Expansion Field Recabling
Expansion
Impact to
Service
None
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
Con–
fig
Ttl #
Sec
Car
VH
LPAs
Trnk
Mod
4812
DBPF
4812
2:1
Cmbr
4812
4:1
Cmbr
BTS 2 – Expansion
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
car
3 opt
3 opt
car
3 opt
3 opt
6 (3
opt)
Add Tx cable trunking
module to
DBPF/conbiner.
None
6 (3
opt)
Add Tx cable trunking
module to DBPF/
combiner. Recable
Starter Tx to add
combiners
Take down
ALL Tx
6 (3
opt)
Add Tx cable trunking
module to combiner.
Recable Starter Tx to
add combiners
Take down
Carrier 3
Tx
car
car
12
12
16
NA
NA
3 opt
3 opt
. . . continued on next page
Apr 2001
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
39
DRAFT
Site Preparation
– continued
Table 2-4: SC 4812ET FRU Configurations – Non–Duplexed
BTS 1 – Starter
Con–
fig
Ttl #
Sec
Car
VH
LPAs
Trnk
Mod
4812
DBPF
4812
2:1
Cmbr
BTS 2 – Expansion
4812
4:1
Cmbr
TRDCs
VH
LPAs
Trnk
Mod
4812
DBPF
4812
2:1
Cmbr
4812
4:1
Cmbr
RX
Ant
TX
Ant
3 (6
opt)
3 opt
3 opt
TRDCs
RX
Ant
Expansion Field
Recabling
Expansion
Impact to
Service
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.
TX
Ant
car
15
16
NA
NA
6 (3
opt)
car
18
16
NA
NA
6 (3
opt)
3 (6
opt)
NA
3 opt
3 opt
Add Tx cable trunking
module to
DBPF/combiner. Recable
Exp Tx to add combiners
Take down
Carrier 5
Tx
car
21
16
NA
NA
6 (3
opt)
3 (6
opt)
12
NA
Add Tx cable trunking
module to combiner
Take down
Carriers 5
and 6 Tx
car
24
16
NA
NA
6 (3
opt)
3 (6
opt)
16
NA
Add Tx cable trunking
module to combiner
None
6 opt
NA
12
12
12
(12
opt)
Add Tx cable trunking
module to DBPF/
combiner. Recable
Starter Tx to add
combiners.
None
6 Sector
car
car
car
car
12
18
24
16
16
16
6 opt
NA
NA
NA
12
NA
12(6–
opt)
NA
12(6–
opt)
16
6 opt
NA
NA
NA
Recable Starter Tx to
add combiners, recable
Starter Rx, cable Rx exp
between frames, and
move 6 antennas to exp.
Add Tx cable trunking
module to combiner.
Recable Exp Tx to add
combiners
Take down
diversity
Rx and
ALL Tx
Take
dowm
Carrier 3
Tx
. . . continued on next page
40
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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Site Preparation
– continued
Table 2-4: SC 4812ET FRU Configurations – Non–Duplexed
BTS 1 – Starter
Con–
fig
Ttl #
Sec
Car
VH
LPAs
Trnk
Mod
car
24
16
BTS 2 – Expansion
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
NA
NA
6 (3
opt)
3 (6
opt)
16
NA
Expansion Field
Recabling
Expansion
Impact to
Service
Add Tx cable trunking
module to combiner
None
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.
Apr 2001
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Site Preparation
– continued
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)
4.0 hrs
4.8 hrs
5.4 hrs
6.0 hrs
6.7 hrs
7.4 hrs
8.0 hrs
3.5 hrs
4.0 hrs
4.5 hrs
5.0 hrs
5.5 hrs
6.0 hrs
3.6 hrs
4.0 hrs
4.4 hrs
4.8 hrs
3.3 hrs
3.6 hrs
4.0 hrs
10
11
12
! 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.
NOTE
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.
Outdoor Location
CAUTION
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.
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Site Preparation – continued
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.
Apr 2001
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Site Preparation – continued
NOTE
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.
Table 2-6: Heliax Cable Loss and Minimum Bend Radii
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
3/8” LDF
1/2”LDF
1/2” FSJ4
7/8”LDF
1–1/4”LDF
1–5/8”LDF
CGDSRG142BU
N/A
SGDN4232A
N/A
SGDN4234A
SGDN4235A
SGDN4233A
.49
.115
.0768
.119
.0430
.0317
.0269
.66
.167
.1132
.177
.0646
.0476
.0410
.15
.035
.0234
.0363
.0131
.00967
.00819
.20
.051
.0345
.0541
.0197
.0145
.0125
10 mm
95 mm
125 mm
13.75 mm
250 mm
380 mm
510 mm
.4”
3–3/4”
5”
1.25”
10”
15”
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
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”
2–1/2”
3”
4”
6”
11
19
20
20
12
–
–
–
–
–
–
* 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.
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Site Preparation – continued
IMPORTANT
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.
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.
NOTE
The knockout in the I/O plate of the Power Cabinet is the
proper size for a 2” Trade size conduit fitting.
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
Apr 2001
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Site Preparation – continued
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].
NOTE
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.
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
NOTE
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.
Existing Concrete Pad
Mounting
CAUTION
The mounting surface must be flat. Door closure problems
may occur if the BTS is not installed on a flat surface.
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.
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Site Preparation – continued
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.
CAUTION
Motorola recommended anchor bolts (Motorola P/N
CGDS97400036) must be used to assure safety in the
event of an earthquake.
WARNING
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.
Drilling Procedure
Before beginning, read the following steps in their entirety to familiarize
yourself with the procedure.
Table 2-8: Drilling Procedure
Step
Action
After 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
Apr 2001
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Site Preparation – continued
Table 2-8: Drilling Procedure
Step
Action
Position 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.
Figure 2-1: Drill Stabilization
POSITION
DRILL BIT IN
CENTER OF
MARK ON
FLOOR
90 Degree
PLACE KNEE NEXT TO
DRILL
TO CONTROL ROTATION
POSITION WORK
BOOT NEXT TO BIT
WHEN STARTING TO
PREVENT BIT FROM
WALKING.
48
Begin 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
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Site Preparation – continued
Table 2-8: Drilling Procedure
Step
Action
Have 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
AIR GUN USED TO CLEAR
DEBRIS FROM MOUNTING
HOLE
TAPE WRAPPED
AROUND BIT TO
INDICATE DEPTH
VACUUM USED TO
COLLECT DEBRIS
WHILE DRILLING/
CLEANING HOLES
Repeat Step 3 and 4 for all remaining holes to be drilled for this cabinet.
Clean 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
WARNING
Roof load carrying limits must be reviewed and an
appropriate support structure must be installed to support
the RF and Power Cabinet as required.
CAUTION
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.
. . . continued on next page
Apr 2001
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49
Site Preparation – continued
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
CAUTION
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”.
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
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Site Preparation – continued
CAUTION
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.
WARNING
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.
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)
NOTE
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.
Apr 2001
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51
Site Preparation – continued
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
Ensure 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.
Dig trenches 610 mm (24”) deep (minimum), and wide enough to accommodate the ground ring and
conduits.
Install 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.
Install 152 mm (6”) concrete pad frame with integral rebars and dry wells. Refer to Figure 2-6 for pad
dimensions.
Install #3 BSWG (#2 AWG; 35 mm2) solid tinned copper perimeter ground ring (see Figure 2-3).
Exothermic weld #3 BSWG (#2 AWG; 35 mm2) solid tinned copper wire from concrete pad rebar to
perimeter ground ring.
Install copper clad steel ground rods.
Exothermic weld perimeter ground ring to steel ground rods.
Install 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
10
For sites with multiple cabinets an additional #3 BSWG (#2 AWG; 35 mm2) solid tinned copper wire
must be installed for each additional cabinet.
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.
After the second day the concrete forms can be removed.
The concrete mounting pad must cure adequately before the cabinets may be installed.
13
14
. . . continued on next page
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Site Preparation – continued
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
GROUNDING RING #3 BSWG
(#2 AWG;35 mm2) SOLID
COPPER W/TIN COATING
GROUND TO CABINET (1 PER CABINET) #3 BSWG
(#2 AWG;35 mm2) SOLID COPPER W/TIN COATING
2438 mm (96”)
GROUND
RODS (8–12)
609 mm
(2’ 0”)
GROUND TO REBAR
(CADWELD)
REBAR JOINTS
(CADWELD) (4)
GROUND TO ANTENNA
#3 BSWG (#2 AWG; 35
mm2) SOLID COPPER
W/TIN COATING
FRONT
REBAR
10 mm (3/8”)
MINIMUM.
CONCRETE
PAD
609 mm
(2’ 0”)
609 mm
(2’ 0”)
609 mm
(2’ 0”)
GROUND TO CABINET (1 PER CABINET) #3 BSWG (#2
AWG;35 mm2) SOLID COPPER W/TIN COATING
Figure 2-4: Conduit Stub Height Detail
CONDUIT STUBS ARE
TO BE 25 TO 50 MM (1”
TO 2”) ABOVE
CONCRETE PAD.
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
CONCRETE
PAD
NOTE
– 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.
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53
Site Preparation – continued
Figure 2-5: Cabinet Dimensions
605 mm
(24”)
102 mm
(4”)
POWER CABINET
711 mm
(28”)
365 mm
(15”)
1030 mm
(41”)
1425 mm
(56”)
102 mm
(4”)
455 mm
(18”)
711 mm
(28”)
270 mm
(11”)
RF CABINET
341 mm
(14”)
1060 mm
(42”)
205 mm
(8”)
54
1425 mm
(56”)
FW00106
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Site Preparation – continued
1471 mm
1518 mm (57.9”)
(59.8”)
1091 mm
(42.9”)
527 mm
(20.7”)
587 mm
(23”)
145 mm
(5.7”)
49 mm
(1.9”)
89 mm
(3.5”)
1188 mm
(46.7”) 1289 mm
1390 mm (50.7”)
(54”)
1470 mm
1518 mm (57.9”)
(59.8”)
49 mm
(1.9”)
867 mm
(34.2”) 973 mm
1158 mm (38.3)
(45.6”)
Figure 2-6: Pad Forms and Conduit Layout
61 mm
(2.4”)
–65 mm
(–2.5”)
5 mm
(0.2”)
16 mm
(0.6”)
87 mm
(3.4”)
475 mm
(18.7”)
614 mm
(24.2”)
14 mm
(0.5”)
77 mm
(3”)
Power Cabinet
RF Cabinet
DC (TO RF
CABINET)
DC (TO POWER
CABINET)
SPAN/ALARM
PILOT BEACON
GROUND
DC (TO
RF CABINET)
MAIN AC
DC (TO POWER
CABINET)
AC (TO PILOT
BEACON)
EXPANSION RF
EXPANSION 1
EXPANSION 2
GROUND
MAIN RF
FW00005
Figure 2-7: Mounting Hole Dimensions
1518 mm
(59.8”)
475 mm
(18.7”)
Apr 2001
Note:
Hole Pattern is
Identical for RF and
Power Cabinets
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55
Site Preparation – continued
Figure 2-8: SC 4812ET RF Cabinet Conduit I/O
75 mm
(3.0”)
629 mm
(24.7”)
650 mm
(25.5”)
595 mm
(23.4”)
415 mm
(16.3”)
340 mm
(13.3”)
469 mm
(18.5”)
211 mm
(8.3”)
104 mm
(4.1”)
0 mm
(0”)
67 mm
(2.6”)
0 mm
(0”)
65 mm
(2.6”)
1069 mm
(42.1”)
0 mm
(0”)
56
139 mm
(5.4”)
65 mm
(2.6”)
261 mm
(10.3”)
70 mm
(2.8”)
587 mm
(23.1”)
304 mm 133 mm 49 mm
(11.9”)
(5.2”) (1.9”)
272 mm
(10.6”)
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
0 mm
(0”)
FW00194
Apr 2001
Site Preparation – continued
Figure 2-9: SC 4812ET Power Cabinet Conduit I/O
217 mm
(8.5”)
82 mm
(3.2”)
0 mm
(0”)
FW00195
49 mm 230 mm
(1.9”)
(9”)
446 mm 546 mm
(17.5”) (21.4”)
0 mm
(0”)
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.
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Site Preparation – continued
– 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.
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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
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How to Unpack the SC 4812ET BTS
– continued
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
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How to Unpack the SC 4812ET BTS
– continued
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.
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How to Unpack the SC 4812ET BTS
– continued
How to Unpack a Cabinet
WARNING
– 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.
CAUTION
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.
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
Inspect the crates and cartons for damage. (Refer to
Figure 3-3).
NOTE
It is recommended that two (2) people perform this procedure.
62
Loosen the latches on the bottom of the crate.
Remove the clips holding the top piece of wood, and remove
the top piece of the crate.
Remove the clips holding the side pieces of wood, and
remove the sides of the crate.
. . . continued on next page
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How to Unpack the SC 4812ET BTS
– continued
Table 3-1:Unpacking a Cabinet (Wood Shipping Crate)
Step
Action
Using appropriate lifting device, remove cabinet from bottom
pallet.
Immediately 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
Inspect the cartons for damage. (Refer to Figure 3-4).
NOTE
It is recommended that two (2) people perform this procedure.
Apr 2001
V03.03
Using tin snips, cut each outer steel band that surrounds the
carton.
Lift off cardboard carton.
Using appropriate lifting device, remove cabinet from bottom
pallet.
Immediately 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.
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63
How to Unpack the SC 4812ET BTS
– continued
Figure 3-3: Shipping Crate (Wood)
64
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How to Unpack the SC 4812ET BTS
– continued
Figure 3-4: Cardboard Shipping Carton
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How to Unpack the SC 4812ET BTS
– continued
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.
WARNING
– 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).
How to Inspect Equipment for
Damage
Table 3-3: Inspecting Cabinets for Damage
Step
66
Action
Inspect the exterior of the RF and Power Cabinet for:
– Dents
– Scratches
– Squareness of the cabinet.
Inspect the interior of the RF and Power Cabinet for:
– Bent FRU brackets
– Dislodged FRUs
– Cables that may have become disconnected.
Report any damage found to the appropriate supervisory
personnel.
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Chapter 4:Cabinet Mounting
This section includes...
Apr 2001
V04.03
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Front Doors (Optional) . . . . . . . . . . . . . . . . . . . .
Existing Concrete Pad Mounting Procedure . . . . . . . . . . . . . . .
Rooftop (Elevated Substructure) Mounting Procedure . . . . . . .
New Concrete Pad Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery and Heater Pad Installation . . . . . . . . . . . . . . . . . . . . . .
Installing Batteries in the Power Cabinet . . . . . . . . . . . . . . . . . .
68
68
69
71
72
73
76
Tables
Table 4-1: Removing Front Cabinet Doors . . . . . . . . . . . . . . . .
Table 4-2: Concrete Pad Mounting . . . . . . . . . . . . . . . . . . . . . . .
Table 4-3: Rooftop (Elevated Substructure) Mounting . . . . . . .
Table 4-4: New Concrete Pad Mounting . . . . . . . . . . . . . . . . . .
Table 4-5: Installing a Battery Heater Pad . . . . . . . . . . . . . . . . .
Table 4-6: Installing a String of Batteries . . . . . . . . . . . . . . . . . .
Table 4-7: Materials Required for Battery Cabling . . . . . . . . . .
Table 4-8: Power Cabinet Battery Cabling . . . . . . . . . . . . . . . . .
68
69
72
73
75
76
77
77
Figures
Figure 4-1: Front Cabinet Door Hinge . . . . . . . . . . . . . . . . . . . .
Figure 4-2: Cabinet Mounting Brackets . . . . . . . . . . . . . . . . . . .
Figure 4-3: Mounting Bolt Configuration . . . . . . . . . . . . . . . . .
Figure 4-4: Battery Heater Pad . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4-5: Typical 12V Battery . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4-6: Power Cabinet – Batteries Installed, Doors Removed
Figure 4-7: Partial Cross–Section View of Battery Compartment
69
70
71
74
76
78
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67
Cabinet Mounting
– continued
Overview
This chapter covers the step–by–step instructions for mounting the RF
and Power Cabinet.
CAUTION
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.
Removing the Front Doors
(Optional)
WARNING
Do Not remove the front cabinet doors unless absolutely
required.
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
Open the primary front door.
Disconnect the Heat Exchanger Power and Alarm cables from
the Heat Exchanger.
For each hinge, loosen the screw that secures the door to the
hinge (See Figure 4-1).
Remove the windstay latch at the bottom of the door.
Lift 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.
68
Repeat for the battery cabinet door of the Power Cabinet if
required.
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Cabinet Mounting
– continued
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
Fasten 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
Install 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.).
Apr 2001
V04.03
Tighten 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
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69
Cabinet Mounting
– continued
Table 4-2: Concrete Pad Mounting
Step
Action
Remove 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).
Install the wiring as described in Chapter 5 of this manual.
NOTE
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.
Figure 4-2: Cabinet Mounting Brackets
Eye–Bolt
NOTE
Use supplied M12 washers when fastening the mounting
brackets to the cabinet.
. . . continued on next page
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Cabinet Mounting
– continued
Figure 4-3: Mounting Bolt Configuration
CONCRETE PAD
ANCHOR BOLT
CGDS97400036
LARGE FLAT WASHER
ÏÏÏÏÏ
ÏÏÏ
ÏÏÏ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
MOUNTING BRACKET
ISOLATION PAD
CONCRETE
ROOFTOP
M12 X 100 BOLT
INSULATING WASHER
(OPTIONAL)
SMALL FLAT WASHER
LARGE FLAT WASHER
ÏÏÏÏÏ
ÏÏÏ
ÏÏÏÏÏ
MOUNTING
STRUCTURE
(I–BEAM)
MOUNTING BRACKET
ISOLATION PAD
LOCK WASHER
SMALL FLAT
WASHER
M12 NUT
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.
WARNING
Roof load carrying limits must be reviewed and an
appropriate support structure must be installed to support
the RF and Power Cabinet as required.
Once the support structure is in place, follow the procedures in Table 4-3
to mount the cabinet.
. . . continued on next page
Apr 2001
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71
Cabinet Mounting
– continued
Table 4-3: Rooftop (Elevated Substructure) Mounting
Step
Action
Fasten 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
Place the cabinet on top of the substructure, so that the mounting
holes are aligned with the holes in the cabinet mounting
brackets.
Install 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.
Tighten 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
Remove 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).
Install the wiring as described in Chapter 5 of this manual.
NOTE
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.
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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Cabinet Mounting
– continued
Table 4-4: New Concrete Pad Mounting
Step
Action
Fasten 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
Install 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.).
Tighten the M12 bolts attaching the mounting brackets to the
cabinet, torque to 135 N–m (100 ft–lbs) with a torque wrench.
Remove 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).
Install the wiring as described in Chapter 5 of this manual.
NOTE
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.
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
Apr 2001
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NOTE
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).
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.
NOTE
ALL heater pads should be installed and cables properly
dressed before ANY batteries are installed.
Figure 4-4: Battery Heater Pad
Rear
Bottom
Top
Front
NOTE
Bottom side of the Heater Pad has adhesive liners that
must be removed prior to installation.
. . . continued on next page
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Cabinet Mounting
– continued
Table 4-5: Installing a Battery Heater Pad
Step
Action
n 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.
If 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.
Remove 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.
Connect 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.
If 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.
Repeat this procedure until all heater pads are installed, then proceed to the battery
installation.
IMPORTANT
Apr 2001
V04.03
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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Cabinet Mounting
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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.
CAUTION
Heater pads must be installed and heater pad cables
properly dressed behind battery shelves before batteries are
installed.
NOTE
Do not install the batteries until the Power Cabinet has
been bolted down.
Table 4-6: Installing a String of Batteries
Step
Action
Remove battery mounting bracket (see Figure 4-6) from the shelf.
Install 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.
Replace 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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Cabinet Mounting
– continued
NOTE
A string of batteries consists of two (2) batteries connected
in series. The Power Cabinet can accommodate up to
twelve (12) strings of batteries.
WARNING
– 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.
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
Battery Terminal Strap (supplied with the Installation
Hardware)
Fasteners, 2 per Battery (supplied with Batteries)
Wire 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.
NOTE
This procedure assumes the batteries have already been
installed.
Table 4-8: Power Cabinet Battery Cabling
Step
Apr 2001
V04.03
Action
Clean battery terminals with a wire brush.
Apply liberal coating of “conductive” grease to all battery terminals,
. . . continued on next page
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Cabinet Mounting
– continued
Table 4-8: Power Cabinet Battery Cabling
Step
Action
Attach 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)).
Secure 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)).
Secure 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)
Installed Battery
Terminal Strap
Battery
Mounting
Bracket
Batteries
(Battery Heaters
located under
batteries)
View of a String
of Batteries
Bolt and Washer
(Supplied with Battery)
ÎÎÎÎÎÎ
ÎÎÎÎÎÎ
ÎÎÎÎÎÎ
Buss Bar Cable Lug
or Terminal Strap
Battery
Rectifier Alarm
Module
11
Cross–Section of Typical Battery
Terminal Connection
Temperature
Control Module
12
10
Recifier Shelfs
Low Voltage
Disconnect
GFCI
Circuit
DC Circuit
Breakers
AC Load
Center
Battery ”Position
Number”
. . . continued on next page
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Cabinet Mounting
– continued
Figure 4-7: Partial Cross–Section View of Battery Compartment
(to next battery)
Batteries
Heater Pad
Power Cables
Front of
Power
Cabinet
Factory Installed Cable
Bracket (See Detail)
Factory
Installed Cable
Heater Pads
(Under Battery)
(from ACLC)
Important:
Detail of Factory
Installed Cable
Bracket
Apr 2001
V04.03
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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Cabinet Mounting
– continued
Notes
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Chapter 5:Cabinet Cabling
This section includes...
Apr 2001
V05.03
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet I/O Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Simplified BTS Cabling Diagram . . . . . . . . . . . . . . . . . . . . . . .
Cable descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Cabinet Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Cabinet Alarm, Span Line and Modem Cabling . . . . . . . . .
Input and Output Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm Signal Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm and Span Line Cable Pin/Signal Information . . . . . . . . .
RGPS Cabling Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Punch Block for the Remote GPS (RGPS) . . . . . . . . . . . . . . . .
RF GPS Cabling (if applicable) . . . . . . . . . . . . . . . . . . . . . . . . .
RF GPS Cabling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LFR Cabling (if applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LFR Cable Pin/Signal Information . . . . . . . . . . . . . . . . . . . . . . .
RF Cabling Main and . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure for Rear Installation . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure for Bottom Installation . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Alarm Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Punch Block . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet Alarm Cable Pin/signal Information . . . . . . . . .
DC Power Interconnect to RF Cabinet . . . . . . . . . . . . . . . . . . . .
Power input connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Power Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Load Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cabinet AC Current Requirements . . . . . . . . . . . . . . . . .
Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
83
83
86
87
90
90
90
94
94
91
93
94
94
95
95
103
104
105
106
107
107
110
110
106
113
114
114
116
117
Tables
Table 5-1: BTS Cable Descriptions and Part Numbers . . . . . . .
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Cabinet Cabling
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82
Table 5-2: Materials Required for Earth Ground Cabling . . . . .
Table 5-3: Procedure to Install RF Cabinet Earth Ground Cables
Table 5-4: Materials Required for Alarm, Span, and Modem Cabling
Table 5-5: Alarm, Span, and Modem Line Cable Installation . .
Table 5-6: External Alarm Connector Characteristics and . . . . .
Table 5-7: External Alarm Connector and Requirements . . . . . .
Table 5-8: Materials Required for RGPS Cabling . . . . . . . . . . .
Table 5-9: RGPS Cable Install Procedure . . . . . . . . . . . . . . . . .
Table 5-10: Punch Block for the Remote GPS . . . . . . . . . . . . . .
Table 5-11: Materials Required for RF GPS Cabling . . . . . . . . .
Table 5-12: RF GPS Cable Install Procedure . . . . . . . . . . . . . . .
Table 5-13: Materials Required for LFR Cabling . . . . . . . . . . .
Table 5-14: LFR Cable Install Procedure . . . . . . . . . . . . . . . . . .
Table 5-15: Pin/Signal Information for LFR Cable . . . . . . . . . .
Table 5-16: BTS Sector/Carrier Configurations . . . . . . . . . . . . .
Table 5-17: Antenna Cables for Duplex 120 Degree Sector . . .
Table 5-18: Antenna Cables for Duplex 60 Degree Sector . . . .
Table 5-19: Antenna Cables for Non–Duplexed 120 Degree . .
Table 5-20: Antenna Cables Non–duplexed 60 Degree Sector .
Table 5-21: Install Main RF Cabling (Rear Wall of RF Cabinet)
Table 5-22: Install Main RF Cabling (Bottom of RF Cabinet) .
Table 5-23: Materials Required for Earth Ground Cabling . . . .
Table 5-24: Procedure to Install Earth Ground Cables . . . . . . . .
Table 5-25: Materials Required for Power Cabinet Alarm Cabling
Table 5-26: Power Cabinet Alarm Cable Install Procedure . . . .
Table 5-27: Pin–Out for Power Cabinet Punch Block . . . . . . . .
Table 5-28: Wire, Lug, and Die Table . . . . . . . . . . . . . . . . . . . .
Table 5-29: Procedure to Install DC Power Cables . . . . . . . . . .
Table 5-30: Equipment Required for AC Power . . . . . . . . . . . .
Table 5-31: Procedure to Install Power Cables . . . . . . . . . . . . . .
Table 5-32: Power Cabinet AC Current Requirements . . . . . . .
89
89
92
92
94
94
97
98
98
99
99
100
100
100
101
101
102
96
103
104
105
106
106
109
109
110
111
112
115
115
116
Figures
Figure 5-1: SC 4812ET Intercabinet I/O Detail (Rear View) . . .
Figure 5-2: SC4812ET Conduit I/O Panel Detail . . . . . . . . . . .
Figure 5-3: Overall Cable Diagram . . . . . . . . . . . . . . . . . . . . . .
Figure 5-4: Antenna Panel Detail (Rear View) . . . . . . . . . . . . . .
Figure 5-5: 50 Pair Punch Block . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-6: Rubber I/O Boot Detail . . . . . . . . . . . . . . . . . . . . . .
Figure 5-7: SC 4812ET RF Cabinet . . . . . . . . . . . . . . . . . . . . . .
Figure 5-8: AC I/O Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
85
85
86
90
91
93
104
107
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Cabinet Cabling
– continued
Figure 5-9: Power Cabinet Punch Block . . . . . . . . . . . . . . . . . .
Figure 5-10: Connecting Power Cables . . . . . . . . . . . . . . . . . . .
Figure 5-11: AC Load Center Wiring . . . . . . . . . . . . . . . . . . . . .
108
111
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.
WARNING
– 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.
CAUTION
– 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).
Apr 2001
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Cabinet Cabling
– continued
WARNING
– 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.
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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Cabinet Cabling
– continued
Figure 5-1: SC 4812ET Intercabinet I/O Detail (Rear View)
Punch
Block
Exp. Punch
Block
Punch
Block
RF Expansion
Microwave
27V
RF GPS
AC Load
Center
27V
1–3 Sector Antennas
LAN
27V Ret
2 Sec
Tick
4–6 Sector Antennas
27V Ret
19 MHz
Clock
Ground Cable Lugs
(on side wall)
RGPS
DC
Conduit
DC
Conduit
Span/Alarm
RF GPS Expansion 1
Expansion 2
Pilot
Beacon
RF CABINET
AC (out)
AC (in)
Conduit
Conduit Ground
(to Pilot Beacon)
Cable Lugs
(Inside
Panel)
POWER CABINET
Figure 5-2: SC4812ET Conduit I/O Panel Detail
RF Cabinet Conduit I/O Plates
1” Conduit
Knockouts (x6)
(Expansion, I/O,
Alarms, Other)
Apr 2001
V05.03
PG11 Conduit
Knockout
(RGPS Fitting)
Power Cabinet Conduit I/O Plates
3” Conduit
Hole (DC)
3” Conduit
Hole (DC)
1” Conduit Knockout
(Pilot Beacon AC)
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
2” Conduit
Hole
(Main AC)
85
Cabinet Cabling
– continued
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
RGPS ANTENNA
(IF APPLICAPLE)
C (1)
A (1)
LFR ANTENNA
(IF APPLICAPLE)
K (1)
B (1)
D (1)
50 PIN
PUNCH
BLOCK
J (1)
25 PIN
PUNCH
BLOCK
RF GPS ANTENNA
(IF APPLICAPLE)
E (3)
DRDC
I (See Note)
ACLC
RF Cabinet
F (3)
H (1)
Power Cabinet
H (1)
G (1)
NOTE
The quantity of RF Antenna cables (I) is determined by
system configuration.
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Cabinet Cabling
– continued
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
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
Customer Supplied
NOTE
The modem lines pair (2–wire) and Span Line pairs can be run on a separate
cables if more appropriate for the installation.
Customer 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**
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
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.
Supplied 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
Apr 2001
V05.03
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Cabinet Cabling
– continued
Table 5-1: BTS Cable Descriptions and Part Numbers
Cable
Label
Part Number
Description
Supplied with Power
Cabinet
3064377A10
DC Power Cable (Quantity = 3), #2/0 AWG INS WELD cable (Black); 3650
mm (12 ft) length.
Customer 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.
Customer Supplied
Ground Cable (Quantity 1 per cabinet), #3 BSWG (#2 AWG; 35 mm2)
Customer Supplied
Antenna RF Cable, 50 Ohm coaxial, male N–type connector on one end,
customer to determine other end.
Supplied 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.
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.
Options Power Cable, # 14 AWG; 820 mm (2.7 ft.) length
3086622H01
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
Ground cable, #3 BSWG (#2–AWG; 35 mm2),
insulated copper wire. Customer supplied cable.
Compression
Lug
2909780203
Two 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
Route 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.
Apr 2001
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Strip insulation from the RF Cabinet end of the cable.
Attach 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).
Connect 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.
WARNING
Use only 110 style punch block punch tool to terminate
wires at punch block (ref: P/N CGDS237744 or
equivalent).
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.
CAUTION
To ensure protection from surges, ground connection is
required before connecting any incoming telecom lines.
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Figure 5-5: 50 Pair Punch Block
STRAIN RELIEVE INCOMING
CABLE TO BRACKET WITH
TIE WRAPS
RF Cabinet I/O Area
(I/O Boots Not Shown)
LEGEND
1T = PAIR 1 – TIP
1R = PAIR 1 –RING
”
”
”
”
”
”
2R
2T
1R
1T
1T 1R 2T 2R
TOP VIEW OF PUNCH BLOCK
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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
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.
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
Route 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.
Route 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.
92
Connect 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.
Strain 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
Used for LAN cables
(Expansion)
Cut Here
For 1/4”
Cable
Tie Wrap
Here For
1/4” Cable
Cut Here
For 1/2”
Cable
Tie Wrap Here
For 1/2” Cable
Cut Here For
#2/0 AWG Cable
I/O Boot (RF Cabinet Only)
Tie Wrap Here For
#2/0 AWG Cable
Cut Here For
#4/0 AWG Cable
Tie Wrap Here For
#4/0 AWG Cable
Cut Here For
1/4” Cable
Tie Wrap Here
For 1/4” Cable
Used for Power
Cabinet Alarm
Cable (D)
Cut Here For
1/2” Cable
Power I/O Boot (RF and Power Cabinet)
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Tie Wrap Here
For 1/2” Cable
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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
Power Cab Control – NC
Power Cab Control – NO
1T
1R
Blue
Blk/Blue
Power Cab Control – Com
2T
Reserved
Signal Name
Color
Customer Outputs 4 – NO
Customer Outputs 4–COM
18R
19T
Yellow
Customer Outputs 4 – NC
19R
2R
N/C
Customer Inputs 1
20T
Rectifier Fail
3T
Blk/Yello
Cust_Rtn_A_1
20R
AC Fail
3R
Green
Customer Inputs 2
21T
Power Cab Exchanger Fail
4T
Blk/Grn
Cust_Rtn_A_2
21R
Power Cab Door Alarm
4R
White
Customer Inputs 3
22T
Power Cab Major Alarm
5T
Blk/Whit
Cust_Rtn_A_3
22R
Battery Over Temp
5R
Red
Customer Inputs 4
23T
Power Cab Minor Alarm
6T
Blk/Red
Cust_Rtn_A_4
23R
Reticifier Over Temp
6R
Brown
Customer Inputs 5
24T
Power Cab Alarm Rtn
7T
Blk/Brn
Cust_Rtn_A_5
24R
LFR_HSO_GND
7R
Customer Inputs 6
25T
EXT_1PPS_POS
8T
Cust_Rtn_A_6
25R
EXT_1PPS_NEG
8R
Customer Inputs 7
26T
CAL_+
9T
Cust_Rtn_A_7
26R
CAB_–
9R
Customer Inputs 8
27T
LORAN_+
10T
Cust_Rtn_A_8
27R
LORAN_–
10R
Customer Inputs 9
28T
Pilot Beacon Alarm – Minor
11T
Cust_Rtn_A_9
28R
Pilot Beacon Alarm – Rtn
11R
Customer Inputs 10
29T
Pilot Beacon Alarm – Major
12T
Cust_Rtn_A_10
29R
Pilot Beacon Control – NO
12R
RVC_TIP_A
30T
Pilot Beacon Control–COM
13T
RVC_RING_A
30R
Pilot Beacon Control – NC
13R
XMIT_TIP_A
31T
Customer Outputs 1 – NO
14T
XMIT_RING_A
31R
Customer Outputs 1 – COM
14R
RVC_TIP_B
32T
Customer Outputs 1 – NC
15T
RVC_RING_B
32R
Customer Outputs 2 – NO
15R
XMIT_TIP_B
33T
Customer Outputs 2 – COM
16T
XMIT_RING_B
33R
Customer Outputs 2 – NC
16R
RVC_TIP_C
34T
Customer Outputs 3 – NO
17T
RVC_RING_C
34R
Customer Outputs 3 – COM
17R
XMIT_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
GPS_POWER_1–
42R
Bk/Blue
RVC_RING_D
36R
GPS_POWER_2+
43T
Yellow
XMIT_TIP_D
37T
GPS_POWER_2–
43R Bk/Yello
XMIT_RING_D
37R
GPS_RX+
44T
Green
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.
NOTE
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.
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**
T472AF
RGPS Cable and Antenna Package, 2000 Ft.*Cable*
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
Route 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.
Connect 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.
Strain relief the cable by tie wrapping it to the punch block mounting bracket as shown in Figure 5-5
NOTE
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.
Punch Block for the Remote GPS (RGPS)
Table 5-10: Punch Block for the Remote GPS
Punch Block
Pin Number
98
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
Supplied in Kit
STAN4000A
Description
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
Route 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.
Route 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.
Terminate 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
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.
Wire 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
Using the wire cutters, cut off the 5–pin circular connector.
Connect 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.
Connect 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
100
5 Pin Cicular
Connector Pin
Punchblock
Pin Number
Description
Wire Color
10T
Antenna+ (Power and Signal)
Red
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
Punchblock
Pin Number
Description
Wire Color
9T
Calibrator+
White
9R
Calibrator–
Black (Paired with White)
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
3/6
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 #
1A
2A
3A
1B
2B
3B
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RX/TX
RX1A/TX1A
RX2A/TX2A
RX3A/TX3A
RX1B/TX1B
RX2B/TX2B
RX3B/TX3B
(Main)
(Main)
(Main)
(Diversity)
(Diversity)
(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 #
1A
2A
3A
1B
2B
3B
4A
5A
6A
4B
5B
6B
RX/TX
RX1A/TX1A
RX2A/TX2A
RX3A/TX3A
RX1B/TX1B
RX2B/TX2B
RX3B/TX3B
RX4A/TX4A
RX5A/TX5A
RX6A/TX6A
RX4B/TX4B
RX5B/TX5B
RX6B/TX6B
(Main)
(Main)
(Main)
(Diversity)
(Diversity)
(Diversity)
(Main)
(Main)
(Main)
(Diversity)
(Diversity)
(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
102
RX/TX
1A
RX1A (Main)
2A
RX2A (Main)
3A
RX3A (Main)
1B
RX1B (Diversity)
2B
RX2B (Diversity)
3B
RX3B (Diversity)
1A
TX1A (Main)
2A
TX2A (Main)
3A
TX3A (Main)
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
RX/TX
1A
RX1A (Main)
2A
RX2A (Main)
3A
RX3A (Main)
4A
RX4A (Main)
5A
RX5A (Main)
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)
6A
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.
NOTE
The Main antenna connections are N–Female type.
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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
1 OUT
4 OUT
2 OUT
5 OUT
1 OUT
RX EXPANSION
3 OUT
1 IN
2 IN
6 OUT
4 IN
5 IN
RX EXPANSION
ANTENNA 1–3
3 OUT
1 IN
2 OUT
3 IN
6 IN
2 IN
3 IN
ANTENNA
Duplxed
(Non–duplxed)
TX/RX
(TX)
(RX)
Remote
ASU
ÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉÉÉ
TX/RX
(TX)
(RX)
ÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉÉÉÉÉ
4A
5A
6A
4B
5B
Non–Duplxed
Receive
Connection
6B
ANTENNA 4–6
FW00474
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
Remove the panel that covers the RF I/O area (see Figure 5-7).
Connect 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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NOTE
All antenna RF cabling should be protected with ice
bridge.
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
Remove the panel that covers the RF I/O area (see Figure 5-7).
Route the Main RF antenna (I) cables through the bottom of the RF Cabinet.
NOTE
If conduit is not used, cables must be strain relieved.
Connect 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).
Replace the RF I/O area cover panel if desired.
NOTE
The bend radius of the RF cables is restricted when
installed through the bottom of the cabinet.
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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
Ground cable, #3 BSWG (#2–AWG; 35 mm2), insulated copper wire.
Customer supplied cable.
Compression Lug
2909780203
Two 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
Route 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.
Strip insulation from the Power Cabinet end of the cable.
Attach 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).
Connect 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.
CAUTION
To ensure protection from surges, ground connection is
required before connecting any incoming lines.
WARNING
Use only 110 style punch block punch tool to terminate
wires at punch block (ref: P/N CGDS237744 or
equivalent).
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Figure 5-9: Power Cabinet Punch Block
LEGEND
1T = PAIR 1 – TIP
1R = PAIR 1 –RING
”
”
”
”
”
”
SURGE PROTECTORS
Power Cabinet I/O Area
GND
2R
01
05
06
10
11
15
16
20
21
25
2T
1R
1T
10
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
22 23
24 25
1T 1R 2T 2R
TWISTED PAIR
CABLE (D)
STRAIN RELIEVE INCOMING
CABLE TO BRACKET WITH
TIE WRAPS
(IN)
OSP
21
(OUT )
CPE
TOP VIEW OF PUNCH BLOCK
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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
3086039H17
Description
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
Route 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.
Route 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.
Connect 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).
Strain 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.
WARNING
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.
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
Code
Motorola Part Number
for Lugs
AWG
Metric (mm)
Welding
(Superflex)
Circular
Mills Area
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
LUG COVER
GROMMET
M10 NUT (17 mm Hex
Driver Required)
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
POWER
INPUT
STUD
FEED COVER
(Do not remove)
ENCLOSURE
BASE
CAUTION
Route the cables through the rubber boot BEFORE
crimping lug onto wire or damage to the boot can occur.
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Procedure
WARNING
Do NOT wear a wrist strap when servicing the power supplies or power distribution cabling. Serious personal injury
can result.
CAUTION
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
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
Ensure that all three (3) main DC breakers in the Power Cabinet are “OFF.”
Route 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.
Route 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.
Route 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.
At 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.
112
Trim 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.
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Table 5-29: Procedure to Install DC Power Cables
Step
Action
Slide one cable grommet over each cable at the connector box.
Insert the cable into the barrel of the right angle crimp lug.
Crimp 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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CAUTION
– 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.
IMPORTANT
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.
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.
NOTE
The hole in the cabinet I/O panel is the proper size for a 2”
Trade size conduit fitting.
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
Power 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.
WARNING
– 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.
CAUTION
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.
Procedure
Use Table 5-31 to install the power cables.
Table 5-31: Procedure to Install Power Cables
Step
Action
Ensure the breaker box at the power meter is OFF.
Open Power Cabinet lower rear I/O door.
Open AC Load Center access panel.
Route the AC power conduit either through the rear panel of the cabinet or through the base of the
cabinet to the ACLC.
Route 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).
Electrical connections must conform to local electrical construction standards.
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WARNING
Ground MUST be connected first. Electric shock hazard
exists if any other sequence is used.
Figure 5-11: International and North American AC Load Center Wiring
L1
L2
North American AC Load Center
AC to Pilot Beacon
NOTE:
L = Line
N = Neutral
G = Ground
NOTE:
L 1= Line 1
L 2= Line 2
N = Neutral
G = Ground
FW00475
International AC Load Center
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–Carriers1
Number of Rectifiers
Power Cabinet AC Current
Ratings2
60A (90A Non–Continuous)
71A (101A Non–Continuous)
86A (116A Non–Continuous)
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Table 5-32: Power Cabinet AC Current Requirements
Number of Sector–Carriers1
Number of Rectifiers
Power Cabinet AC Current
Ratings2
12
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
IMPORTANT
Apr 2001
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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.
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Notes
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Chapter 6: What’s Next and Cleanup
This section includes...
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleanup the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fill out Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optimize the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
119
119
120
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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What’s Next and Cleanup
– continued
– 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
Cabinets are bolted down with mounting bolts
properly torqued.
Each cabinet has its own earth ground that is
connected to a proper site grounding system.
AC power cabling completed and checked by an
electrician and the AC breakers are “OFF”.
DC power cabling between Power and RF cabinets
is installed and the DC breakers are “OFF”.
Battery breakers are “OFF”.
RX RF cables installed.
TX RF cables installed.
RF connections are properly sealed with tape.
Span and Modem line cables installed.
10
RF cabinet alarm cable is installed.
Ground MUST be connected first.
. . . continued on next page
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Table 6-1: Installation Completion Checklist
Status
No.
Item
Notes
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.
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What’s Next and Cleanup
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Optimize the System
Optimize the system by following the procedures given in the
appropriate optimization manual.
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A
Appendix A: Installing RGPS
This section includes...
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RGPS Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . .
123
123
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
Determine the mounting location (see RGPS Mounting Considerations).
Install 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
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A
Installing RGPS
– continued
Table A-1: Installing the RGPS
Step
Action
Insert the prepared cable into the pipe (see Figure A-1).
Connect the RGPS head to the cable. To secure the connection, tighten the spinning connector flange
(located on the prepared cable) see Figure A-1.
Insert the pipe into the threaded neck on the RGPS head and hand tighten firmly.
Place the assembly into the mounting brackets and secure.
Route the cable down to the RF cabinet.
Install 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
CLAMP BRACKETS (2)
CABLE TO PUNCH
BLOCK IN RF CABINET
WALL MOUNTING
BRACKETS (2)
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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.
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A
Installing RGPS
– continued
Notes
126
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B
Appendix B: Cabinet Specifications
This section includes...
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
127
128
Indoor Ventilation Specifications . . . . . . . . . . . . . . . . . . . . . . . .
128
Grounding Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
128
128
DC Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GFCI/AC Outlet Specifications . . . . . . . . . . . . . . . . . . . . . . . . .
129
129
Conduit I/O Plate Specifications . . . . . . . . . . . . . . . . . . . . . . . .
Battery Configuration Specifications . . . . . . . . . . . . . . . . . . . . .
129
130
Conduit Layout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
130
134
Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
135
Tables
Table B-1: Cabinet Dimensions & Clearances . . . . . . . . . . . . . .
128
Table B-2: Minimum Battery Strings Required Sector–Carrier
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table B-3: Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . .
130
134
Table B-4: Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . .
135
Figures
Figure B-1: SC 4812ET Conduit I/O Plates . . . . . . . . . . . . . . . .
Figure B-2: Conduit Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . .
129
131
Figure B-3: Mounting Hole Dimensions . . . . . . . . . . . . . . . . . .
Figure B-4: SC 4812ET RF Cabinet Conduit I/O . . . . . . . . . . .
131
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.
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Cabinet Specifications
– continued
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.
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Cabinet Specifications
– continued
NOTE
AC Power is not present in the SC4812ET RF Cabinet.
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
RF Cabinet Conduit I/O Plates
1” Conduit
Knockouts (x6)
(Expansion, I/O,
Alarms, Other)
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PG11 Conduit
Knockout
(RGPS Fitting)
3” Conduit
Hole (DC)
Power Cabinet Conduit I/O Plates
3” Conduit
Hole (DC)
1” Conduit Knockout
(Pilot Beacon AC)
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2” Conduit
Hole
(Main AC)
129
Cabinet Specifications
– continued
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.
NOTE
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.
Table B-2: Minimum Battery Strings Required for Sector–Carrier Configurations
# of Battery
Strings
10
11
12
3 Rectifiers
(3 Sector–Carriers)
4 Rectifiers
(6 Sector–Carriers)
5 Rectifiers
(9 Sector–Carriers)
6 Rectifiers
(12 Sector–Carriers)
4.0 hrs
4.8 hrs
5.4 hrs
6.0 hrs
6.7 hrs
7.4 hrs
8.0 hrs
3.5 hrs
4.0 hrs
4.5 hrs
5.0 hrs
5.5 hrs
6.0 hrs
3.6 hrs
4.0 hrs
4.4 hrs
4.8 hrs
3.3 hrs
3.6 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.
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Cabinet Specifications
– continued
1471 mm
1518 mm (57.9”)
(59.8”)
1091 mm
(42.9”)
527 mm
(20.7”)
587 mm
(23”)
145 mm
(5.7”)
49 mm
(1.9”)
89 mm
(3.5”)
1188 mm
(46.7”) 1289 mm
1390 mm (50.7”)
(54”)
1470 mm
1518 mm (57.9”)
(59.8”)
49 mm
(1.9”)
867 mm
(34.2”) 973 mm
1158 mm (38.3)
(45.6”)
Figure B-2: Pad Forms and Conduit Layout
61 mm
(2.4”)
–65 mm
(–2.5”)
5 mm
(0.2”)
16 mm
(0.6”)
87 mm
(3.4”)
475 mm
(18.7”)
614 mm
(24.2”)
14 mm
(0.5”)
77 mm
(3”)
Power Cabinet
RF Cabinet
DC (TO RF
CABINET)
DC (TO POWER
CABINET)
SPAN/ALARM
PILOT BEACON
GROUND
DC (TO POWER
CABINET)
DC (TO
RF CABINET)
MAIN AC
AC (TO PILOT
BEACON)
EXPANSION RF
EXPANSION 1
EXPANSION 2
GROUND
MAIN RF
FW00005
Figure B-3: Mounting Hole Dimensions 1518 mm
(59.8”)
Note:
Hole Pattern is
Identical for RF and
Power Cabinets
475 mm
(18.7”)
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Cabinet Specifications
– continued
Figure B-4: SC 4812ET RF Cabinet Conduit I/O
75 mm
(3.0”)
629 mm
(24.7”)
650 mm
(25.5”)
595 mm
(23.4”)
415 mm
(16.3”)
340 mm
(13.3”)
469 mm
(18.5”)
211 mm
(8.3”)
139 mm
(5.4”)
65 mm
(2.6”)
261 mm
(10.3”)
104 mm
(4.1”)
67 mm
(2.6”)
0 mm
(0”)
65 mm
(2.6”)
1069 mm
(42.1”)
587 mm
(23.1”)
272 mm
(10.6”)
70 mm
(2.8”)
132
304 mm 133 mm 49 mm
(11.9”)
(5.2”) (1.9”)
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
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0 mm
(0”)
FW00194
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Cabinet Specifications
– continued
Figure B-5: SC 4812ET Power Cabinet Conduit I/O
217 mm
(8.5”)
82 mm
(3.2”)
0 mm
(0”)
FW00195
0 mm
(0”)
Apr 2001
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49 mm 230 mm
(1.9”)
(9”)
446 mm 546 mm
(17.5”) (21.4”)
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133
Cabinet Specifications
– continued
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
50A DC
LPA Breaker (1 per pair of LPA’s)
10A DC
ETIB
10A DC
External Blower Assembly
25A DC
Heat Exchanger
15A DC
Options
SC 4812ET Power Cabinet: North American
150A AC
Main Breaker
70A AC
Rectifier Breaker (1 per shelf)
15A AC
Battery Heater (1 per battery
compartment)
15A AC
GFCI
15A AC
Spare (Pilot Beacon)
SC 4812ET Power Cabinet: International
160A AC
Main Breaker
63A AC
Rectifier Breaker (1 per shelf)
16A AC
Battery Heater (1 per battery
compartment)
10A AC
AC Outlet
10A AC
Spare (Pilot Beacon)
SC 4812ET Power Cabinet: Common
134
160A DC
Main Breakers
25A DC
Heat Exchanger
2A DC
Breaker System Breaker
5A DC
Internal Fan
80A DC
Battery String Breakers
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Cabinet Specifications
– continued
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)
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)
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Conduit Panels
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Cabinet Specifications
– continued
Notes
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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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Installation Quickstart
– continued
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
Site 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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Installation Quickstart
– continued
Table C-1: Site Considerations
Site Consideration
References and Recommendations
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
NOTE
– 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.
Verify that the mounting holes have been drilled in the proper locations.
Install 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
Review the roof load carrying limits, and ensure that the appropriate support structure is in place.
Install 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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Installation Quickstart
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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
Route 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.
Strip insulation from the cabinet end of the cable.
Attached 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).
Connect 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
Refer to Table A-1 in the manual for installing the RGPS prior to proceeding.
Route 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.
Connect 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.
Strain 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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Installation Quickstart
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Table C-5: Alarm, Span Line Cabling, and Remote GPS Cable Install
Step
Action
Route 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.
Connect the Power Cabinet Alarm cable pairs to each punch block per the pin–callouts in Chapter 5 of
this manual.
Strain 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.
WARNING
Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious personal
injury can result.
CAUTION
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
NOTE
The hole in the I/O panel of the cabinets is the proper size
for a US Standard 3” conduit fitting.
Figure C-1: Connecting Power Cables
LUG COVER
CABLE
GROMMET
M10 NUT
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
POWER INPUT STUD
FEED COVER (Do not remove)
ENCLOSURE BASE
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Installation Quickstart
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Table C-6: DC Power Cabling Installation Procedure
Step
Action
Ensure that all three (3) main DC breakers in the Power Cabinet are “OFF.”
Route 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.
Route 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.
Route 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.
At 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.
Trim 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.
Slide one cable grommet over each cable at the connector box.
Insert the cable into the barrel of the right angle crimp lug.
Crimp 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.
CAUTION
– 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.
Table C-7: AC Power Cabling Procedures
Step
Action
Verify that the breaker box (at the power meter) is OFF.
Open 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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Installation Quickstart
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Table C-7: AC Power Cabling Procedures
Step
Action
Route the AC power conduit to the rear or bottom (as appropriate) AC I/O panel on the cabinet and
terminate conduit.
Route 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.
Connect the AC wires to the appropriate terminals (see Chapter 5 for details).
Heat Dissipation
IMPORTANT
144
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.
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Appendix D: SC 4812ET/SC 614 BTS DC Power Sharing
This section includes...
Scope and Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing DC Power Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reinstall Access Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applying AC and DC Power . . . . . . . . . . . . . . . . . . . . . . . . . . .
145
146
147
148
150
155
Tables
Table D-1: Battery/Rectifier Configuration . . . . . . . . . . . . . . . .
Table D-2: Materials Required for DC Power Cabling . . . . . . .
Table D-3: SC 614 DC Power Cabling . . . . . . . . . . . . . . . . . . . .
Table D-4: Reinstall the Access Panel (SC 614) . . . . . . . . . . . .
Table D-5: Wire, Lug, and Die Table . . . . . . . . . . . . . . . . . . . . .
Table D-6: Procedure to Install DC Power Cables . . . . . . . . . . .
147
148
148
151
152
154
Figures
Figure D-1: SC4812ET/SC614 Base Station DC Power Sharing
Figure D-2: Backup DC Power Cable Routing . . . . . . . . . . . . .
Figure D-3: Cold Shrinking the compression lug . . . . . . . . . . .
Figure D-4: Cover installation . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure D-5: Reinstall Access Panel . . . . . . . . . . . . . . . . . . . . . .
Figure D-6: Connecting Power Cables . . . . . . . . . . . . . . . . . . . .
146
149
150
150
151
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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SC 4812ET/SC 614 BTS DC Power Sharing
– continued
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).
Figure D-1: SC4812ET/SC614 Base Station DC Power Sharing
Rear of SC 4812ET
RF Cabinet
Rear of SC 4812ET
Power Cabinet
208–240 VAC
3 x 28V
DC Outputs
2 Individual
Connection Cables
SC 614
DC Power Only
Battery Backup Interface
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SC 4812ET/SC 614 BTS DC Power Sharing
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CAUTION
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.
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)
12
10
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.
WARNING
Battery Power must be removed from the system until all
connections are made to the BTS.
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Materials
Lug (for supplied cable)
S Motorola Part Number (2910262A12) or Panduit Part Number
(LCD3/0–14BX)
Cold Shrink (included with the SC 614 Install Kit)
S Motorola Part Number (3764683A01) or 3M Part Number (CST
045–095–300)
Table D-2: Materials Required for DC Power Cabling
Qty
Description
M6 Lock Nut
Red DC Power Cable, 2/0 Weld (CGDS2/0WREDFT)
Black DC Power Cable, 2/0 Weld (CGDS2/0WBLKFT)
51 mm (2”) moisture tight is recommended
Two–hole lug supplied with Installation Kit (Motorola P/N 2910262A12)
Tubing 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
NOTE
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.
Route the RED 28V feed power cable through the conduit opening on side of BTS (see Figure D-2).
Route the BLACK 28V Return cable though the conduit opening on the side wall of the BTS (see
Figure D-2).
Strip the wire from both cables (RED and BLACK) approximately 25 to 29 mm (1 to 1–1/8” inches).
Install the crimp lugs to the end of each cable and crimp with tool (CGDSTBM14LOCK) or
equivalent.
Connect 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).
Install 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
Pull 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.
Loosen 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
MOUNTING STUDS
2910262D12
(SHOWN INSTALLED)
DC CONDUIT LOCATION
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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
Loosen 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.
IMPORTANT
In order to keep radiated and conducted emissions within
specifications, it is necessary to install all 3 of the nuts and
torque them properly.
Figure D-5: Reinstall Access Panel
ACCESS
PANEL
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SC 4812ET/SC 614 BTS DC Power Sharing
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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.
NOTE
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.
The objective of this procedure is to connect the DC power cabling to
the RF Cabinet from the Power Cabinet.
WARNING
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.
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
Code
Motorola Part Number
for Lugs
AWG
Metric (mm)
Welding
(Superflex)
Circular
Mills Area
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
LUG COVER
GROMMET
M10 NUT (17 mm Hex
Driver Required)
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
POWER
INPUT
STUD
FEED COVER
(Do not remove)
ENCLOSURE
BASE
CAUTION
Route the cables through the rubber boot BEFORE
crimping lug onto wire or damage to the boot can occur.
Installation Procedure
WARNING
S Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious personal
injury can result.
CAUTION
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
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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SC 4812ET/SC 614 BTS DC Power Sharing
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Table D-6: Procedure to Install DC Power Cables
Step
Action
Ensure that all three (3) main DC breakers in the Power Cabinet are ”OFF.”
Route 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.
Route 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.
Route 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.
At 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.
Trim 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.
Slide one cable grommet over each cable at the connector box.
Insert the cable into the barrel of the right angle crimp lug.
Crimp 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.
CAUTION
Failure to connect the proper AC feed will damage the
surge protection module inside the AC Load Center.
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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SC 4812ET/SC 614 BTS DC Power Sharing
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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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Required documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparing the SC 614T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling the SC 4812ET RXDC to the SC 614 ERXDC . . . . . .
157
158
158
158
166
Tables
Table E-1: Side Cable Entry Hole Preparation . . . . . . . . . . . . . .
Table E-2: Removing the Duplexers (RX2, RX4 and RX6) . . .
Table E-3: Removing the Diversity RXDC from the SC 614 . .
Table E-4: Installing an ERXDC in the SC 614 Cabinet . . . . . .
Table E-5: Connecting SC 4812ET to SC 614 . . . . . . . . . . . . . .
158
160
163
165
166
Figures
Figure E-1: Views of BTS Side Walls below Shroud . . . . . . . . .
Figure E-2: Double–D Hole Punch . . . . . . . . . . . . . . . . . . . . . .
Figure E-3: I/O Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure E-4: Duplexer/Directional Coupler . . . . . . . . . . . . . . . . .
Figure E-5: Cut–a–way view of SC 614 . . . . . . . . . . . . . . . . . .
Figure E-6: RXDC/ERXDC Card Connections . . . . . . . . . . . . .
Figure E-7: Location of RXDCs and ERXDCs . . . . . . . . . . . . .
Figure E-8: Connecting SC 4812ET to SC 614 . . . . . . . . . . . . .
Figure E-9: Cabling of SC 4812ET to SC 614 BTS . . . . . . . . .
159
160
161
162
162
163
164
167
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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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
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
n Step
Action
Determine 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.
158
To 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.
To 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”).
If necessary use a de–burring tool or sandpaper to remove any sharp burrs around the holes that
were punched.
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– continued
NOTE
– 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.
Figure E-1: Views of BTS Side Walls below Shroud
LEFT SIDE
RF
RF
RF
RF
RF
RF
158 mm
(6–3/16”)
RF
EARTH
GND
RF
DC
RF
MULTICARRIER – HSO
RGPS
RGPS
69 mm
(2–11/16”)
T1/E1
SPAN
–A–
RIGHT SIDE
RF
EARTH
GND
69 mm
(2–11/16”)
MULTICARRIER – HSO
T1/E1
SPAN
RGPS
RGPS
–A–
158 mm
(6–3/16”)
RF
AC
RF
RF
RF
RF
RF
RF
RF
NOTE
– 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”.
. . . continued on next page
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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
CAUTION
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.
Figure E-2: Double–D Hole Punch (Refer to Motorola Part Number #CGDS50748149)
SHAFT NUT
BEARING
DIE
PUNCH
NUT
ÏÏÏ
ËËËËËËËËËËËËËËËË
ÏÏÏ
ËËËËËËËËËËËËËËËË
ÏÏÏ
ÏÏÏ
OUTSIDE OF BTS
INSIDE OF BTS
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
n Step
Action
Loosen 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.
Disconnect the RF jumper cable (Type–N connector) from the bottom of the three duplexers
(RX2, RX4, and RX6).
If 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).
Disconnect Type N connector from RX port on top of the duplexers (RX2, RX4, & RX6).
Using 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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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
Table E-2: Removing the Duplexers (RX2, RX4 and RX6) from the SC 614
n Step
Action
After 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)
Install six Type N bulkhead connectors to the Main Ground Bar (MGB) in the holes for RX2 IN,
RX2 IN, RX2 IN, RX1 OUT, RX1 OUT, and RX1 OUT (see Figure E-5). Tighten the hex
nuts from the bottom of the MGB to 4 N–m (35 in–lbs).
Install a DC block surge arrestor onto the Type–N bulkhead connectors. RX OUT, RX1 OUT,
and RX1 OUT. Torque to 4 N–m (35 in–lbs.).
Install the BTS labels TX1/1, TX2/1 and TX3/1 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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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
Figure E-4: Duplexer/Directional Coupler
TOP MOUNTING BRACKET
TX
RX
FWD
RFL
DDC
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
RX1 OUT
RX 2 IN
RX1 OUT
RX1 OUT
RX2 IN
RX 2 IN
RXDC (R1)
ERXDC
(R2)
. . . continued on next page
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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
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
n Step
Action
Unplug the ganged connectors PL1 and PL2 from the Diversity RXDC (R2) in the BTS. (See
Figure E-6 and Figure E-7).
Disconnect the 8–pin and 14–pin connectors, P2 and P1, respectively.
Using 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
PL2 SECTOR 2
REDUNDANT
OUTPUT
SECTOR 3
OUTPUT
SHIELD
P2 (8–PIN)
TRX 4 PWR,
CONTROL
P1 (14–PIN)
TRX 1 PWR,
CONTROL, EID
PCB
J1
SECTOR 1 INPUT
J2
SECTOR 2 INPUT
J3
SECTOR 3 INPUT
. . . continued on next page
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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
Figure E-7: Location of RXDCs and ERXDCs
T–15 TORX
SCREWS
R1
R2
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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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
Table E-4: Installing an ERXDC in the SC 614 Cabinet
n Step
Action
In 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).
Connect 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 RX2 IN; J2 to RX2 IN; and J3 to RX2 IN). Torque each
connector to 4 N–m (35 in–lbs).
Connect the 8–pin and 14–pin connectors, P2 and P1, respectively.
Plug the ganged connectors onto the ERXDC (R2).
Connect the RF jumper cable to the bottom of the Type N bulkhead connectors (RX2 IN; RX2
IN; and RX2 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.
Install the BTS labels – RX2 IN; RX2 IN; and RX2 IN next to each port on the outside of SC
614.
Connect the jumper cables from the SC 614T RX2 IN (RX2), RX2 IN (RX4), and RX2 IN
(RX6) to the SC 4812ET RF Expansion Ports labelled 1A, 2A, and 3A, respectively.
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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
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
n Step
166
Action
Unplug the ganged connectors PL1 and PL2 from the RXDC (R1).
Disconnect 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.
Remove the two cables from the cabinet.
Plug the ganged connectors (included in the Expansion Cabinet installation hardware) into the
RXDC (R1).
Connect 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.
Connect 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 RX1 OUT; RX1 OUT; and
RX1 OUT, respectively. Torque each connector to 4 N–m (35 in–lbs).
Install the RF jumper cable from the Type–N bulkhead connectors on the MGB as covered in the
SC 614T Hardware Installation manual (68P64113A47).
Install the BTS labels – RX1 OUT; RX1 OUT; and RX1 OUT next to each port on the outside
of the BTS.
Connect the jumper cables from the SC 614T RX U, RX1 OUT, and RX1 OUT to the SC
4812ET RF Expansion Ports labelled 1B, 2B, and 3B, respectively.
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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
Figure E-8: Connecting SC 4812ET to SC 614
9186180H01
0983599H01
TX3
RX5
TX2
RX3
TX1
RX1
SC 614T
DDC’s
SC 614
3009923W04 (9)
1A
EXTERNAL
CABLES
1B
IN PORTS
OUT PORTS
2A
2B
3A
SC 614 BULKHEAD
3B
TX3
RX3
SC 4812ET
EXPANSION
PORTS
20 Pair
RGD
Punchblock Board
(RGPS)
1A
TX2
RX2
4A
TX1
RX1
2A
5A
3A
6A
1B 2B
4B 5B
6B
(Alarms/
Spans)
RF Expansion Ports
1A
2A
3A
1B 2B
RGD/RGPS
50 Pair
Punch
Block
3B
Micro–
wave
Power Input
+27V
RF
GPS
LAN
3B
IN OUT
Remote
ASU
4A
5A
6A
4B 5B
Power Input
27V Ret
6B
19 MHz
Spans
Modem
2 Sec
Alams
Antennas
GND
Lugs
SC 4812ET
FW00498
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SC 4812ET – SC 614/SC 614T Companion Frame Installation
– continued
Figure E-9: Cabling of SC 4812ET to SC 614 BTS
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Ñ
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RX
Ant–1A
C1
TX1
C2
C3
C4
RX1A
RX
Ant–2A
C1
TX2
C2
C3
C4
RX2A
RX
C1
TX3
Ant–3A
C2
C3
C4
RX3A
RX1A
RX2A
RX3A
MPC–A
EMPC–B
RX1A
RX2A
RX3A
P1
Surge
protectors
RX1B
RX2B
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Ñ
Ó
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Ñ
Ó
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RX3B
S3
S2
S1
TX3/RX5
TX2/RX3
TX1/RX1
TX3
TX2
TX1 (from LPA)
RX1
RX3
RX5
n:1
RXDC–A
Surge
protectors
RX2
RX4
RX6
RX1A_IN
RX2A_IN
RX3A_IN
S1_out
S3_out
S5_out
2:1
ERXDC–B
SC614T
S1_out
S3_out
S5_out
FW00373
SC4812ET
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Appendix F: SC 4812ET to SC 4812ET DC Power Sharing and Frame
Installation
This section includes...
Scope and Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
169
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
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SC 4812ET to SC 4812ET DC Power Sharing and Frame Installation
– continued
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.
Figure F-1: SC4812ET to SC 4812ET Base Station DC Power Sharing
Rear of SC 4812ET
RF Cabinet
Rear of SC 4812ET
Power Cabinet
(2 carrier Max)
208–240
VAC
2 Individual
Connection
Cables
3 x 28V
DC Outputs
(1 carrier Max)
Battery Backup
Interface
Rear of SC 4812ET
RF Cabinet
FW00149
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SC 4812ET to SC 4812ET DC Power Sharing
and Frame Installation – continued
IMPORTANT
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.
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)
10
12
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.
WARNING
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.
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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SC 4812ET to SC 4812ET DC Power Sharing and Frame Installation
– continued
Table F-2: Wire, Lug, and Die Table
Wire Size
Motorola Part Number
for Lugs
AWG
CGDS256306951514
Color and Die
Code
Metric (mm)
Welding
(Superflex)
Circular
Mills Area
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
LUG COVER
GROMMET
M10 NUT (17 mm Hex
Driver Required)
M10 LOCK WASHER
M10 FLAT WASHER
CRIMP LUG
POWER
INPUT
STUD
FEED COVER
(Do not remove)
ENCLOSURE
BASE
CAUTION
Route the cables through the rubber boot BEFORE
crimping lug onto wire or damage to the boot can occur.
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SC 4812ET to SC 4812ET DC Power Sharing
and Frame Installation – continued
Installation Procedure
WARNING
Do NOT wear a wrist strap when servicing the power
supplies or power distribution cabling. Serious personal
injury can result.
CAUTION
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned ”OFF”.
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
Ensure that all three (3) main DC breakers in the Power Cabinet are ”OFF.”
Route 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.
Route 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.
Route 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.
At 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.
Trim 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.
Slide one cable grommet over each cable at the connector box.
. . . continued on next page
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SC 4812ET to SC 4812ET DC Power Sharing and Frame Installation
– continued
Table F-3: Procedure to Install DC Power Cables
Step
Action
Insert the cable into the barrel of the right angle crimp lug.
Crimp 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.
CAUTION
Failure to connect the proper AC feed will damage the
surge protection module inside the AC Load Center.
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SC 4812ET to SC 4812ET DC Power Sharing
and Frame Installation – continued
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.
CAUTION
Before starting the procedure, ensure that the Power
Cabinet main DC breakers are turned “OFF”.
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
Connect 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.
Connect 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.
Connecting 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.
Connect 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.
Connect 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.
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SC 4812ET to SC 4812ET DC Power Sharing and Frame Installation
– continued
Notes
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Appendix G: SC 4812ET – SC 4812ET
Companion Frame Installation
This section includes...
Scope and Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Required documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing an EMPC in a SC 4812ET RF Starter Frame . . . . . . .
Connecting an SC 4812ET Starter BTS to an Companion Frame
177
177
177
178
178
Tables
Table G-1: Installing an EMPC in the SC 4812ET Starter Frame
Table G-2: Connecting 4812ET RF Starter to RF Companion .
178
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)
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SC 4812ET – SC 4812ET Companion Frame Installation
– continued
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
Locate the MPC–B card in the SC 4812ET RF starter frame to be removed.
Disconnect coaxial cables connecting to the MPC using a 5/16” wrench.
Slide 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
Connect T1 line to each 24–position modem connector located in the DC I/O area of each RF cabinet.
Connect 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.
Refer to Chapter 5 (Table 5-6, Table 5-7 and Table 5-8) for connecting the Alarm cable.
Connect 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.
Connect 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.
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SC 4812ET – SC 4812ET Companion Frame Installation
– continued
Figure G-1: RX Expansion Cabling of SC 4812ET to SC 4812ET BTS
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RX EXPANSION
RX
Ant–1A
C1
TX1
C2
C3
C4
RX1A
RX
C1
TX2
Ant–2A
C2
C3
C4
RX2A
RX
C1
TX3
Ant–3A
C2
C3
C4
RX3A
RX1A
RX2A
RX3A
MPC–A
EMPC–B
1 OUT
2 OUT
3 OUT
1 IN
2 IN
3 IN
SC4812ET Starter
RX
C1
C2
Ant–1A
TX1
C3
C4
RX1A
RX
C1
C2
TX2
Ant–2A
C3
C4
RX2A
RX
C1
C2
TX3
C3
C4
Ant–3A
RX3A
1 OUT
2 OUT
3 OUT
MPC–A
RX1A
RX2A
RX3A
EMPC–B
1 IN
2 IN
3 IN
SC4812ET Expansion
SURGE
ARRESTORS
FW00407
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SC 4812ET – SC 4812ET Companion Frame Installation
– continued
Notes
180
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Appendix H: Installing RF GPS
This section includes...
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF GPS Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . .
181
182
184
Tables
Table H-1: Installing the RF GPS . . . . . . . . . . . . . . . . . . . . . . . .
Table H-2: Mounting Considerations . . . . . . . . . . . . . . . . . . . . .
182
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.
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Installing RF GPS
– continued
Installation Procedure
Table H-1 lists the step of installing the RF GPS system.
Table H-1: Installing the RF GPS
Step
Action
Determine the mounting location (see RF GPS Mounting Considerations in this chapter).
Install the mounting kit at the RF GPS location of choice. Use the appropriate mounting bolts for
mounting surface.
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.
Attach 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).
Attach the Grounding Kit to the mounting pole.
Connect 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.
Install 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.
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Installing RF GPS
– continued
Figure H-1: GPS Installation and Parts
4”
NOTE:
1. TOTAL WEIGHT FOR GPS ANTENNA
ASSEMBLY – 0.65 LBS.
3/4”
ANTENNA/PREAMP
(CGDSANT62301)
RUBBER BOOT
(CGDSANT62301)
CABLE ASSEMBLY
(N–DSK) (12” LONG)
(CGDSMCXNJACK)
MOUNTING SHROUD
(CGDSMNT62311)
1/2” SCREWS
OUTER GASKET
(CGDSMNT62311)
3”
2”
POST
MOUNTING
ASSEMBLY
(CGDS62312)
CABLE RETAINING NUT
(CGDSMNT62311)
‘N’ JACK
(CGDSMCXNJACK)
(SEE NOTE 1)
MOUNTING &
GROUNDING KIT
(CGDS2417071)
‘N’ JACK
CONNECTOR
ADJUSTABLE
FROM 33.5” TO 47”
ROOF
50 FT SUPERFLEX JUMPER
W/’N’–MALE CONNECTORS
(CGDS241148A2)
TO BTS
REF TO FW00410R
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Installing RF GPS
– continued
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
Consideration
The mounting pipe for the RF GSP Head should be mounted vertically with less than five (5)
degrees of tilt.
The 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.
For 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.
Place 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.
Separate 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.
The 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.
If 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.
NOTE
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.
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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) . . . . . .
Table I-2: Terminal Interface (8–pin RJ48C Connector) . . . . . .
Table I-2: Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . .
178
187
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.
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Minimum CSU Requirements for SC 4812ET BTS
– continued
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)
NOTE
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.
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
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Minimum CSU Requirements for SC 4812ET BTS
– continued
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
RxD data (T1)
RxD data (R1)
TxD data (T)
TxD data (R)
7,8
Optional Shield
3,6
No Connection
Table I-2: Terminal Interface (8–pin RJ48C Connector)
Pin#
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Circuit Name
RxD data (T1)
RxD data (R1)
TxD data (T)
TxD data (R)
7,8
Optional Shield
3,6
No Connection
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Minimum CSU Requirements for SC 4812ET BTS
– continued
Table I-3: Power Connector
Pin#
Circuit Name
+V
Ground
–V
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Index
Numbers
110 style punch block, 81, 96
Battery Mounting, 65
Battery strings, 33
battery strings, 68
208–265 VAC, 36
Battery Strings Required – Minimun, 33
208/240 VAC power cables, 102
BBX–1, 24
breaker size, 103
BTS Cabinet, 24
A/C load center/breaker panel, 102
AC Current Requirements, 105
AC Load Center, 103
BTS Cable Descriptions and Part Numbers, 78
BTS transmit and receive path cabling , 93
building codes, 41
AC Power Cabling, 73
AC Power connection, 36
AC power pedestal, 30, 31, 103
C–CCP, 58
Adequate ventilation, 31
C–CCP shelf, 23
Alarm and span line cable pin/signal information, 99
Cabinet Clearances, 27
alarm and span line cabling, 81, 96
Cabinet installation categories, 30
Alarm Signal, 73
Cable descriptions , 78
Alarm signal specifications, 85
Cable Loss and Bend Radius – Heliax , 35
Alarm Span Line and Modem Cable Install Procedure, 83,
89, 91, 98
Cable Pin/signa, 73
Amps non–continuous, 103
AMR, 23
Cables Required for Earth Grounding, 80, 83, 88, 90, 91,
95, 98
anchor bolts, 38, 61
Cabling, 62, 64, 65, 69
Antenna Cables 120 Degree Sector Configuration, 92
Cabling Diagram, 73
Antenna Panel, 81
Cabling Installation Order, 75
antistatic plastic, 107
CADWELD Joints, 42
Cables Required for AC Power, 104
carton, 54
CCD, 23
Checklist, 108
backup durations, 34, 118
CIO, 23
Batteries Installed, 70
Cleanup the Site, 107
Battery Heater, 59, 66
clearance, 31
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189
Index
– continued
Concrete Mounting – Existing Pad, 61
concrete pad, 42
Concrete Pad and Ground System Installation, 42
Concrete pad and ground system installation, 43
External alarm connector characteristics and requirements,
85
External FRUs, 20
eye–bolts, 62
Conduit Stub Height Detail, 44
conduit/cable entrance layout, 41
connect the DC battery backup, 99, 140, 159
flush, 37
Connection Materials, 42
Framing Materials – Concrete Pad, 42
crates, 54
FRU, 108
CSM, 23
Customer I/O, 23
GLI2, 23
Global Positioning System, 87, 111
Dangerous voltages, 103, 131
gravel, 43
DC Power Cables, 101, 142, 161
ground ring, 41
DC Power Connect, 73
Ground Rods, 42
DC Power Connection, 37
Ground System Installation Procedure, 43
Demarcation Document, 14
Ground Wire Connection, 36
Dimensions and Clearances, 26
grounding, 31
Dimensions and clearances, 26, 27
Grounding Guidelines for Cellular Radio Installations, 14
documents, 13
Grounding Ring , 44
Door closure problems, 41
Grounding Ring Detail, 44
Double–D, 146
Double–D Hole, 148
Drill mounting holes in pad, 38
Duplexer/Directional Coupler DDC, 22, 23, 26
dust masks, 38
handling batteries, 68
Heat Exchanger, 60
Heliax, 35
High Leakage current, 103, 131
How the frames are shipped , 53, 54
HSO, 23
ear plugs, 38
earth ground, 41
earth ground cables, 80, 95
Elevated Substructure, 64
Indoor Location Preparation, 30
Equipment identification, 52
Input and Output Cabling, 81, 96
Excessive RF energy, 49
Inspect, 58
Existing Concrete Pad Mounting – Preparation, 37
Inspect for Damage, 51, 58
Exothermic, 43
Install the concrete pad and ground system, 43
expansion or optional equipment, 31
Installation completion checklist, 108
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Index
– continued
Installation Hardware, 16
MPC, 23
Installing Batteries, 59
Installing Batteries in the Power Cabinet, 68
Installing the Remote GPS Hardware, 13
New Concrete Pad Preparation, 41
insulated, 31
New Concrete Pad Mounting, 64
inter-cabinet ca, 74
Intercabinet I/O, 76
Internal FRU, 25
Internal FRUs, 22
Optimization, 107
Optimize the System, 110
Outdoor Location Preparation, 34
Knife or Scissors, 51
packed, 53
Pad Forms and Conduit Layout, 45, 46, 119
LFR Cable (if applicable), 36
Lightning protection, 37, 41
Linear Power Amplifier LPA, 20
load carrying limits, 40
Power Cabinet Alarm Cable, 37
Power Cabinet Battery Cabling, 68
Power cable, 104
Power input connections , 100, 140, 160
Load Center Wiring, 105
pre–existing concrete pad, 61
Loading Considerations, 32
pre–installed, 42
Local Electrical Codes, 103
precast concrete, 42
Procedure for Bottom Access Installation, 94
Procedure for Side Wall Installation, 94
Procedure to Install Earth Grounding Cables, 80, 95
Main Ground Bar, 76
Procedure to Install Power Cables, 104
Main RF Cable, 36
Procedure to Install the GPS and LFR Cabling, 94
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
Procedure to Unpack a BTS Cabinet, 54, 55
Product Description, 12
puddling, 40
Punch Block, 82, 84, 97
Motorolas guidelines, 41
rainwater, 42
Mounting Bolt Configuration, 63
Re–install Access Panel, 138
mounting brackets, 61
rebars and dry wells, 43
Mounting Hole Dimensions, 46, 76, 117, 119
Receive Distribution Card RXDC, 26
mounting pipe, 48
Remove protective covering, 107
mounting surface, 30, 37
Removing the Front Doors, 59, 60
Apr 2001
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
191
Index
– continued
Report any damage, 58
Static sensitive equipment, 58, 75
Required documents, 13, 14, 17, 18
submersion, 31, 34, 40
RF Cabinet Alarm Cable Connection, 36
surges, 103, 131
RF Cabinet Span and Modem Cable Connection, 36
RF GPS Cable, 36
RF I/O area, 94
RF I/O Plate, 93
Telco Interface Board TIB, 26
RF interference, 49
Tin Snips, 51
RGPS Cable, 36
Tools and equipment required, 99, 140, 159
RGPS Head, 48
Transmission Lines – RF, 35
RGPS Mounting Considerations, 48
Transmit/Receive Module TRX, 25
Roof load carrying limits, 63
trenches, 43
ROOFTOP , 32
Rooftop Mounting Preparation, 40
Rooftop Elevated Mounting Procedure, 41
Rooftop Elevated Substructure Mounting, 63
Unpack/Upright Procedure , 54
unpacking process, 52
Safety glasses, 38
vandalism, 31, 34
safety glasses, 38
Views of Cabinet Side Walls below Shroud, 147
satellites, 48
Scope of Document, 12
sector configuration, 92
Sector/Carrier Configurations, 92
Weight, 33
shipped fully assembled, 53
weight, 32
Shipping Crate, 56, 57
Whats Next and Cleanup, 13
shop vacuum, 40
windstay latch, 60
Side Cable Entry Hole Preparation, 146
wrist strap, 75
Simplified Cabinet Cabling Diagram, 77
wriststrap, 58
Site Document, 13
Site preparation – Overview, 30
sky, 49
snow loading, 32
192
Zoning requirements, 32
SCTM 4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
Apr 2001
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