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Instruction maintenance manual

RBS 884 Micro (1900 MHz) Installation and

Hardware Replacement Manual

The contents of this document are subject to revision without notice due to

continued progress in methodology, design, and manufacturing.

Ericsson shall have no liability for any error or damages of any kind resulting

from the use of this document.

i00 152-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Table of Contents

Part 1 Introduction . ..................... 1-1

1 Revision Information . . . ............ 1-1

2 About This Manual ................ 1-1

3 Conventions Used in the Manual . ........ 1-2

Part 2 General Product Information . . ............ 2-1

1 Introduction . . ................. 2-3

2 Features . . . ................. 2-3

3 Product Lines . ................. 2-4

4 Architecture . . ................. 2-6

Part 3 System Description . ................. 3-1

1 Introduction . . ................. 3-3

2 RBS 884 Micro (1900 MHz) . . . ........ 3-3

3 Installation Conﬁgurations ............ 3-18

Part 4 Installation . . ..................... 4-1

1 Introduction . . ................. 4-3

2 Safety Considerations . . ............ 4-3

3 Electrostatic Discharge (ESD) . . . ........ 4-5

4 Tools . ..................... 4-6

5 Site Selection . ................. 4-7

6 Transportation and Storage ............ 4-8

7 Unpacking . . . ................. 4-9

8 Cabinet Installation ................ 4-12

9 Cable and Power Connections . . ........ 4-22

10 Setting the Unit Switches . ............ 4-34

11 External Cable Installation ............ 4-45

12 Site Inventory . ................. 4-53

13 Equipment Power Up . . . ............ 4-54

14 Cold Start-up . ................. 4-57

15 Completing the Installation ............ 4-58

16 LED Indications ................. 4-59

17 Site Expansion . ................. 4-64

18 RBS 884 Micro (1900 MHz) Cabinet Repainting . . 4-83

Part 5 Hardware Replacement ................. 5-1

1 Introduction . . ................. 5-3

2 Safety Considerations . . ............ 5-3

3 Product Handling and Inspection . ........ 5-6

4 General Troubleshooting . ............ 5-6

5 Alarm Troubleshooting . . ............ 5-11

6 RBS Unit Hardware Replacement . ........ 5-14

00 152-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 ii

Contents

Part 6 Glossary of Terms . . . ................ 6-1

Part 7 Acronyms and Abbreviations . . . ........... 7-1

Appendix A Documentation Overview ................ A-1

Appendix B User Feedback . .................... B-1

Appendix C Internal Cables . .................... C-1

Appendix D Conversion Table . . . ................ D-1

iii 00 152-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Part 1

Introduction

This part describes the information contained in the manual and the

conventions used in its presentation.

1 Revision Information

This is the ﬁrst issue of the Installation and Hardware Replacement

Manual (IHRM) for Radio Base Station (RBS) 884 Micro (1900 MHz).

2 About This Manual

This manual contains information required to install, troubleshoot, and

maintain the RBS 884 Micro (1900 MHz).

The target audience for the manual is RBS site installation and site

maintenance personnel.

Before the IHRM is used to perform any installation or maintenance

activities at a radio base station site, the following actions must be

completed:

•Telephone transmission facilities must have been made available and

tested

•AC, DC voltage or both must have been made available

•The antenna system must have been installed and tested

•Grounding system available

When the radio base station equipment has been installed and tested using

the information in this manual, it will remain powered up and ready for

integration into the network by personnel at the Mobile Switching Center

(MSC).

The manual is divided into the following parts:

•Introduction – a description of the contents of the manual and how

the manual can be used.

•General Product Information — a description focused on the radio

base station itself in general terms. This means that it describes an

unconﬁgured base station, not a working Radio Base station (RBS).

0015-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 1-1

Introduction

•System Description – a description of the RBS 884M equipment

hardware and the available conﬁgurations.

•Installation – procedures for the installation and powering up of RBS

884M equipment on site.

•Maintenance – procedures for basic troubleshooting and replacement

of faulty items of equipment.

•Glossary of Terms – deﬁnitions of key terms used in the manual.

•Acronyms and Abbreviations – expanded versions of all of the

acronyms and abbreviations used in the manual.

•Document Overview (Appendix A) — This appendix provides an

overview of the existing customer manuals for RBS 884, the work

procedures covered by the manuals, and the recommended use of the

manuals.

•User Feedback (Appendix B) — This appendix provides information

on ordering and trouble reporting for the RBS 884 customer manuals.

•Internal Cables (Appendix C) – description of the internal cables

within each RBS cabinet. These cables are installed at the factory.

•Conversion Table (Appendix D) — table for translating some SI

units to American units

Many of the procedures in the manual require site-speciﬁc data from the

Site Installation Documentation relating to the particular radio base station

site.

The procedures in the manual are intended to be performed in the order

presented.

3 Conventions Used in the Manual

The ﬁrst time an acronym or abbreviation appears in the manual, the

expanded form is shown, followed by the acronym or abbreviation in

parentheses, for example, Mobile Switching Center (MSC).

The abbreviated form is shown without parentheses when the expanded

form is not used.

A list of acronyms and abbreviations can be found in Part 8.

Names of documents are referred to in italic typeface, for example, Site

Installation Documentation.

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Part 2

General Product Information

1 Introduction . ................. 2-3

2 Features . . . ................. 2-3

3 Product Lines . ................. 2-4

3.1 RBS 884 Macro . ............ 2-4

3.2 RBS 884 Micro . . ............ 2-5

3.3 RBS 884 Compact ............ 2-6

4 Architecture . ................. 2-6

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General Product Information

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General Product Information

1 Introduction

The General Product Information provides general information on

unconﬁgured radio base stations. See Site Engineering Manual for

descriptions of the available working base station conﬁgurations and for

information on RBS interfaces (for instance power, transmission, and

antennas).

2 Features

The RBS 884 Series is a series of products in the CMS 8800 family. The

products in the RBS 884 Series are fully featured modular radio base

stations for both the analog AMPS EIA 553 and the digital D-

AMPS EIA IS 136 systems (Advanced Mobile Phone System Electronics

Industry Association 553 system and Digital American Mobile Phone

System Electronics Industry Association Interim Standard 136 system).

A base station in the RBS 884 Series can support one, two, or three

cells. A cell is a deﬁned area covered by one antenna system, and each

cell has one control channel for digital or one for analog, or both. There is

one cell at an omni site, and one to three cells at a sectorized site.

The RBS 884 Series utilizes multi-mode, multi-functional transceivers

(TRX). The same hardware TRX module can be used for analog and

digital voice, control and monitoring purposes.

The hot repair capability, replacement of defective units when power is

still applied, allows repair to be carried out on an RBS in operation during

normal scheduled maintenance visits.

The RBS 884 Series is designed for remote control monitoring allowing

control and ﬁne tuning of all functions and parameters, such as power

output, frequencies, and switching of redundant units from the Mobile

Switching Center (MSC).

A Radio Frequency Test Loop (RFTL) is an optional feature which enables

precise output power settings, Voltage Standing Wave Ratio (VSWR)

alarm and Receive Signal Strength Indicator (RSSI) test measurements.

The device software is stored in non-volatile memory within the RBS, and

the control part software is downloaded from the (MSC), which ensures a

short time to service at power-up.

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General Product Information

3 Product Lines

RBS 884 RBS 884

RBS 884

RBS 884 Macro

RBS 884

RBS 884 Micro 800 RBS 884 Compact

RBS 884 Outdoor

RBS 884 Micro 1900

Figure 2-1. Product Lines in the RBS 884 Series

The RBS 884 Series includes product lines for macro and micro cells.

Note: The maximum number of carriers for each sector stated is the

technical limitation for the deﬁned standard conﬁgurations. The

practical usable sector sizes may be limited by the frequency

plan. The capacity of all product lines, with the exception of

the RBS 884 Micro (1900 MHz) is calculated for analog

systems. The capacity of the RBS 884 Micro (1900 MHz) is

calculated for digital systems. See the integration information

in the RBS 884 Operations and Maintenance Manual for

system limitations in digital systems.

3.1 RBS 884 Macro

The macro cell products are intended for normal indoor installations and

are built up on-site with a number of cabinets of uniform size and design.

The RBS 884 Macro 800 MHz supports AMPS and digital D-AMPS.

Operates at 824–894 MHz and provides up to 78 low power or medium

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General Product Information

power transceivers (3x24 carriers), or up to 96 high power and 6 low

power transceivers (3x32 carriers).

The RBS 884 Macro 1900 MHz supports digital D-AMPS and operates at

1850–1990 MHz (A-, B-, or C-band). It provides up to 48 medium power

transceivers (3x15 carriers).

A special conﬁguration, Self Contained Cell Site (SCCS), providing up to

8 transceivers in three sectors (3x7 carriers) can be installed in an outdoor

container.

The RBS 884 Macro DBC supports digital D-AMPS and is applicable to

frequencies at 806–860 MHz. Up to 39 medium power transceivers (3x12

carriers) can be used in one installation.

3.2 RBS 884 Micro

The micro cell products can be used wherever local capacity or coverage is

needed.

The RBS 884 Micro 800 MHz is intended for indoor installation, and

typical applications include convention centers, ofﬁce buildings, parking

areas and tunnels. The RBS 884 Micro comprises one small main cabinet

and two possible expansion cabinets of the same size. It is a completely

functional cell, with drop and insert transmission interface and RF

equipment built-in. Up to 10 1.5W transceivers can be used in one cabinet

(8 carriers). Up to 30 transceivers can be provided with two auxiliary

cabinets (24 carriers). This gives a total capability of up to 23 analog or

68 digital voice channels (71 with E1 PCM links).

The RBS 884 Micro with MCPA (800 MHz)supports analog

AMPS EIA 553 and digital D-AMPS EIA IS 136 and operates at 824–894

MHz. It is a standard RBS 884 Micro (800 MHz) equipped with a Multi

Carrier Power Ampliﬁer (MCPA) for higher output power in one cell. The

MCPA is a separate cabinet, that is mounted below the RBS 884 Micro

(800 MHz) cabinet. Up to three RBS 884 Micro (800 MHz) cabinets and

one MCPA can be mounted in a 19 inch rack cabinet. An RBS 884 Micro

with MCPA (800 MHz) can provide up to 23 analog or 68 digital voice

channels (71 with E1 PCM links) in one cell.

The RBS 884 Micro Outdoor (800 MHz)supports analog AMPS EIA 553

and digital D-AMPS EIA IS 136 and operates at 824–894 MHz. Designed

for outdoor use, it is contained in an all-weather steel enclosure with an

environmentally-controlled interior and can be installed in a wide variety

of locations and climatic zones. The RBS 884 Micro (800 MHz) cabinets

and one MCPA. This means that up to 26 transceivers can be provided

with a total of 24 carriers, which gives a total capacity of up to 23 analog

or 68 digital voice channels (71 with E1 PCM links).

The RBS 884 Micro (1900 MHz) supports digital D-AMPS EIA IS 136

and operates at 1850–1910 MHz. The RBS 884 Micro (1900 MHz) is a

self-contained base station intended primarily for outdoor use. The cabinet

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General Product Information

is cooled directly with outdoor air, using a combination of variable speed

blowers and a variable power heated to maintain the cabinet air

temperature within equipment operating limits. Typical applications

include ‘hot spot’ areas within mature 1900 MHz networks and areas not

covered by the RBS 884 Macro. The RBS 884 Micro (1900 MHz) is

comprised of one small main cabinet and up to two auxiliary primary

cabinets of the same size. The cabinets can be easily mounted on poles, on

the sides of buildings, on rooftops, or on concrete pads. The RBS 884

Micro is a complete functional cell, with drop and insert transmission

interface and built-in RF equipment. Up to 5 transceivers can be used in

one cabinet providing 4 carriers. Up to 15 transceivers can be used in a

three-cabinet installation providing 3x4 carriers. The three-cabinet

installation allows up to 33 digital trafﬁc channels.

The RBS 884 Micro with MCPA is a standard RBS Micro 884 equipped

with a Multi Carrier Power Ampliﬁer (MCPA) for 30 W normal output

power in one cell. The MCPA is a separate cabinet a bit smaller than the

RBS 884 Micro cabinet. The cabinets can be mounted on a wall, and one

up to three cabinets and one MCPA can be mounted in a standard 19 inch

rack cabinet or Telco rack. An RBS 884 Micro with MCPA can provide

up to 23 analog or 68 digital voice channels (71 with E1 PCM links) in

one cell.

3.3 RBS 884 Compact

The RBS 884 Compact can be compared to the Micro, but is intended for

outdoor installations. It is contained in an all-weather steel cabinet with an

environmentally-controlled interior and can be installed in a wide variety

of locations and climatic zones. The RBS 884 Compact consists of one

primary cabinet and two possible expansion cabinets of the same size. It is

a completely functional cell with drop and insert transmission interface and

RF equipment built-in. Up to 10 low power transceivers can be used in

one cabinet (8 carriers). Up to 30 transceivers can be provided with two

auxiliary cabinets (24 carriers). This gives a total capability of up to 23

analog or 68 digital voice channels (71 with E1 PCM links).

4 Architecture

The radio base station cabinet contains the equipment needed to control

and handle the communication between the MSC and the mobile stations.

The conﬁguration of equipment in a speciﬁc system depends on the

number of sectors, the number of voice channels in each sector, the

transmit power, the frequency band, the number and type of antennas, and

if the site is all analog, mixed analog and digital, or all digital. Figure 2-2

on page 2-7 shows the main connections to and from an RBS.

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General Product Information

PCM LINK 1

PCM LINK 2

RX RX

Sector A

Sector B Sector C

Antennas

RBS 884

MSC

Figure 2-2. General Overview of MSC – RBS – Antenna Connections (Three-Sector Conﬁguration)

The group switch is responsible for switching calls between subscribers.

The calls may be between two mobile subscribers or between a mobile

subscriber and a subscriber in the public telephone network. In the RBS,

there are several regional processors, controlled by and working with the

central processor. The regional processors control the switch and the

transceivers in the base station. The switch in the base station makes sure

that the speech signals from the MSC are connected to the correct

transceiver. The transceivers generate radio signals emitted by the base

station antenna to the mobile stations. The semipermanent connections are

set up in the MSC. Each TRX handles three digital speech channels, but

uses only one channel on the PCM link.

Figure 2-3 on page 2-8 shows the logical parts of an RBS.

3/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 2-7

General Product Information

Mobile Switching

Center (MSC)

Control Part

Communicates with MSC and radio

traffic control.

- Remote Multiplexer (terminates PCM link)

- Signal Terminal (decodes control info)

- EMRPs (control TRXs)

Modem Part

Converts speech and data to and from

radio waves.

- Power Splitters for RF input

- Tranceiver Units (TRXs)

Antenna Near Part

- Filter Unit

- Multi-Coupler (Rx amplifier)

- Combiners (one Tx antenna for all carriers)

- Test and calibration

Support Part

Power distribution, fans, external alarms etc.

Rx Tx

T1/E1

PCM Link Power

Radio

Base

Station

(RBS)

Figure 2-3. Block Diagram of a Radio Base Station

•The Control Part (COP) provides communication between the (MSC)

and the (RBS) hardware for radio trafﬁc control and statistical data

gathering. In the RBS 884 Macro the control part consists of Control

and Radio Interface (CRI) cabinet. In Micro and Compact the

Control Part consists of the Remote Multiplexer (REMUX), Signaling

Terminal Remote, Micro (STRM), Extension Module Regional

Processor, Micro (EMRPM), and Connection (CONN) boards.

•The Modem Part (MOP) converts digitized speech and data into

radio frequency signals, hosts channel coding and decoding functions

and performs measurements on radio transmission quality. It is

comprised of transceiver modules (TRXs) in the RBS and voice

coders (TRABs) in the MSC. In the RBS 884 Macro the modem part

consists of the Transceiver cabinet (TCB) and in the RBS 884 Micro

and Compact the MOP consists of TRX boards.

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General Product Information

•The Antenna Near Part contains components associated with the RF

signal paths, such as auto-tuned combiners, power splitters,

multicouplers, and bandpass ﬁlters. The main functions are to

combine multiple TRX output signals to a single Tx antenna, to ﬁlter

Tx and Rx signals, to pre-amplify and distribute Rx signals, to

protect TRXs from reﬂected power, to provide isolation between the

TRXs and to calibrate and supervise the TRXs and associated RF

components. In the RBS 884 Macro the antenna near part consists of

the Antenna Near Part Cabinet (ANPC) and the Auto-tuned

Combiner Cabinet (ATCC). In the RBS 884 Micro (800 MHz) and in

the RBS 884 Compact it consists of a number of boards (RFTL, MC,

COMBFILT and CABCOMB). In the RBS 884 Micro (1900 MHz)

the ANP, bandpath ﬁlters, and Radio Frequency Test Loop (RFTL)

are integrated into a single hardware unit. The combined ANP/RFTL/

Filter unit provides RSSI measurement, output power measurement

and calibration, VSWR supervision, and RF path testing.

•The Support Part provides general support, such as power supply and

cooling. The components of this part vary signiﬁcantly between the

product lines.

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General Product Information

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Part 3

System Description

1 Introduction . ................. 3-3

2 RBS 884 Micro (1900 MHz) . . . ........ 3-3

2.1 Cabinet Layout . . ............ 3-3

2.2 Power Distribution Box . . ........ 3-6

2.3 Equipped Microbase Subrack (EMBS) – Main

Cabinet ................. 3-7

2.4 Equipped Microbase Subrack (EMBS) –

Primary Cabinet . ............ 3-11

2.5 Remote Multiplexer (REMUX) . . . .... 3-13

2.6 Extension Module Regional Processor, Micro

(EMRPM) ................ 3-14

2.7 Transceiver (TRX) ............ 3-15

2.8 Antenna Near Part (ANP)/Radio Frequency

Test Loop (RFTL) ............ 3-16

2.9 Environmental Control Unit ........ 3-17

2.10 Fans . . ................. 3-17

2.11 Air Filter ................. 3-18

3 Installation Conﬁgurations . . . ........ 3-18

3.1 Limitations ................ 3-18

3.2 Standard Conﬁgurations RBS 884 Micro(1900

MHz) . ................. 3-18

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System Description

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System Description

1 Introduction

The System Description part of the manual describes the RBS 884 Micro

(1900 MHz) equipment hardware and the available conﬁgurations.

2 RBS 884 Micro (1900 MHz)

Hardware speciﬁcations for the RBS 884 Micro (1900 MHz) are described

in the following section. Figure 3-1 on page 3-3 is an exterior view of the

cabinet.

95 cm

43 cm 61 cm

Figure 3-1. RBS 884 Micro (1900 MHz) Exterior View of Cabinet

2.1 Cabinet Layout

The RBS 884 Micro (1900 MHz) base station cabinet provides mechanical

support, electrical interconnection, cooling, and environmental protection

for the RBS 884 modules and components. All base station equipment

wiring and cabling is easily accessible from the front of the unit. The

electronic cards and modules plug into the backplanes of the electronics

subrack and the subrack is cooled directly with outside air. The RBS

equipment is protected from the external climatic variations by use of the

environmental control system that supplies the internal modules with 10 C

–45C cooling air during normal operation. Figure 3-2 on page 3-4 shows

the cooling airﬂow pattern that is established by the environmental control

system. Cabinet siting must allow for adequate airﬂow space and cable

access and routing space to the bottom of the cabinet.

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System Description

The RBS 884 Micro (1900 MHz) external cabinet shell is constructed of

aluminum and ﬁnished with a polyester powder paint. The exterior of the

cabinet can be reﬁnished by the customer. Reﬁnishing and repainting

information is provided in the Installation and Hardware Replacement

Manual. The corrosion warranty does not apply to reﬁnished cabinets.

Air Inlet

Exhaust Exhaust

Figure 3-2. RBS 884 Micro (1900 MHz) With Cooling Airﬂow Pattern

The RBS 884 Micro (1900 MHz) is comprised of one main cabinet and up

to two auxiliary primary cabinets, as follows:

•Main Cabinet is used in all conﬁgurations. The main cabinet

provides up to four digital TRXs and one Digital Veriﬁcation

Module (DVER). The four TRXs offer a total of 11 Digital Trafﬁc

Channels (DTCs) and one Dedicated Control Channel (DCCH).

•Auxiliary Primary Cabinet has a dedicated antenna system and is

used to create an additional sector within an omni cell. The auxiliary

primary cabinet provides up to four digital TRXs and one DVER

device. The four TRXs offer a total of 11 DTCs and one DCCH.

The primary cabinet requires an EMRPM transmission link

connection to the main cabinet.

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System Description

The RBS 884 Micro (1900 MHz) main cabinet contains the following (See

Figure 3-3 on page 3-6):

•Power Distribution Box

•Equipped Microbase Subrack (EMBS)

– Antenna Near Part (ANP) includes the integrated ﬁlter unit and

the Radio Frequency Test Loop (RFTL)

– Power Supply Unit (PSU)

– Remote Multiplexer (REMUX)

– Environmental Control Unit (ECU)

– Transceivers (5) (TRX), including 1 Digital Veriﬁcation Module

(DVER)

– Extension Module Regional Processor, Micro (EMRPM)

– Dummy EMRPM or Blank Module

– Signaling Terminal Regional, Micro (STRM)

– Alarm Board (ALM)

•Fans (4)

•Heater

•AC surge suppressor

•Backup batteries

•Heater for backup batteries

•PCM surge suppressor units (primary and secondary)

•Antenna connector plate or I/O plate with integral quarter wave

shorting stubs for lightning protection

•Optional air ﬁlter

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System Description

Subrack

with Plug-In

Modules

Battery

Compartment

(2 Batteries)

Fan Units (4)

Backplanes

AC/DC

Power

Air Filter

Access Panel

Heater

Ground Plate

Primary T1

Surge

Suppressor

Secondary T1

Surge

Suppressor

Figure 3-3. RBS 884 Micro (1900 MHz) Fully-Equipped Cabinet

2.2 Power Distribution Box

The power distribution box supplies the RBS equipment with the AC and

DC supply voltages. See Figure 3-4 on page 3-7

The power distribution box contains the following:

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System Description

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 3-4. RBS 884 Micro (1900 MHz) Power Distribution Box Front Panel

•DC and alarms distribution panel

•DC and AC breakers

•AC mains

•AC surge connection

•Control board with connectors to temperature sensors, alarms, and

the Environmental Control Unit (ECU)

The RBS 884 Micro (1900 MHz) is designed with service breakers to

allow for replacement of the heaters and batteries while the base station

remains powered. The breakers also provide over-current protection. One

main breaker removes power from the entire cabinet.

2.3 Equipped Microbase Subrack (EMBS) – Main Cabinet

The EMBS – Main Cabinet contains the RBS 884 Micro (1900 MHz)

equipment units described in this section. Figure 3-5 on page 3-8 shows

the main cabinet equipment units in their allocated positions. Variable-

speed fans are located in the top of the cabinet and the resulting air ﬂow is

dimensioned to handle a fully-equipped cabinet. The equipment units and

fans are environmentally sealed to protect circuit board traces and

components from direct exposure to outside cooling air.

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System Description

12 354786 9 11 12 13

Power

Supply

Unit TRX

ANP/RFTL

TRX

REMUX

STRM

EMRPM

BLANK

PANEL

ALM

ECU

Figure 3-5. RBS 884 Micro (1900 MHz) EMBS Front Panel — Main Cabinet

The equipment units installed in the cabinet are allocated numbered slots,

(slot No.1 to slot No. 13) from left to right, and are dimensioned using

Building Modules (for example, BM = 1/10 in = 2.54 mm) as the unit of

measurement.

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System Description

The RBS 884 Micro (1900 MHz) EMBS – Main Cabinet contains the

following:

•Five Transceivers (TRX), including one Digital Veriﬁcation Module

(DVER) for digital trafﬁc. See Section 2.7 on page 3-15. The ﬁve

TRXs are installed as follows:

– Slot 1 (8 BM) – Dedicated Control Channel (DCCH)/Digital

Voice Channel (DVC)

– Slot 2 (8 BM) – DCCH/DVC

– Slot 4 (8 BM) – DCCH/DVC

– Slot 5 (8 BM) – DCCH/DVC

– Slot 6 (8 BM) – DVER

•One Antenna Near Part (ANP) with integrated ﬁlter unit and Radio

Frequency Test Loop (RFTL). The ANP is installed in slot 3 (10

BM) The function of the ANP is as follows:

– Supervision of the reﬂected loss of the TX antenna

– Calibration of Receiver Signal Strength Indicator (RSSI)

– Calibration of dynamic power and measurement of output power

– Operation of test loop. The measured RF signal from the TX

antenna output is converted to the corresponding RX frequency

and is fed into the receiver at a ﬁxed RF level.

•One Remote Multiplexer (REMUX) - provides T1/E1 PCM line

termination and clock stabilization in the main cabinet. The REMUX

is not included in primary cabinets. The REMUX is installed in slot

7 (12 BM).

•One Signaling Terminal Regional (STRM) - decodes control

information and controls the EMRPM control bus. The STRM is not

included in primary cabinets. The STRM is installed in slot 8 (8

BM).

•One Extension Module Regional Processor, Micro (EMRPM) -

provides device control, speech interface to transceivers, alarm

monitoring and a port for computer interface to the Mobile

Switching Center (MSC). The EMRPM is installed in slot 9 (8 BM).

Expansion space for a second EMRPM is available in slot 10.

•One EMRPM Dummy Unit - allows for future expansion for a second

EMRPM. This equipment unit is the same size as the EMRPM and

is used to ensure proper airﬂow through the unused subrack slot. The

EMRPM Dummy Unit is installed in slot 10 (8 BM).

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System Description

•One Alarm unit (ALM) – provides maximum connection of 32

external alarms. External alarms are alarms for both internal and

external equipment that are deﬁned as external alarms on the ALM

board. There are no user deﬁned alarms. The ALM is installed in

slot 11 (10 BM).

•One Environment Control Unit (ECU) – controls temperature

regulation inside the cabinet and provides alarms to the TRXs and

the ALM board. The ECU is installed in slot 12 (10 BM).

Note: Unused TRX slots must be equipped with dummy TRXs or

Radio Matching Units (RMUs). Other unused slots must have

an equipment unit (a blank panel along with a dummy board)

to assure proper airﬂow and electromagnetic shielding.

See Table 3-1 on page 3-10 for the complete EMBS main cabinet

conﬁguration.

Table 3-1. EMBS Conﬁguration for RBS 884 Micro (1900 MHz) Main Cabinet

Slot Name Explanation Comments

1-2 TRX Transceiver The TRXs act as digital voice/control channels.

Slot 1 is recommended for the control channel

TRX.

3ANP/RFTL Antenna Near Part/

Radio Frequency

Test Loop

The ANP provides transmit (TX) and receive

(RX) ﬁltering, low-noise amplifying and RFTL

functionality.

4-5 TRX Transceiver The TRXs act as digital voice/control channels.

TRX slots that are not in use, must be equipped

with a dummy TRX or RMU.

6TRX Transceiver with

digital veriﬁcation

functionality

The TRX in slot 6 is used as a Personal

Communications Services (PCS) or DVER for

uplink measurements.

7REMUX Remote Multiplexer The REMUX provides T1/E1 PCM line

termination and clock stabilization in the main

cabinet.

8STRM Signaling Terminal

Regional Micro

The STRM decodes control information and

controls the EMRPM.

9EMRPM Extension Module

Regional Processor

Micro

The EMRPM controls the TRXs as well as the

REMUX, the ANP/RFTL, and the ALM.

10 Blank

Module

Dummy EMRPM The Blank Module or equipment unit allows for

future expansion for a second EMRPM. This

equipment unit is the same size as the EMRPM

and is used to ensure proper airﬂow through the

unused subrack slot.

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System Description

Table 3-1. EMBS Conﬁguration for RBS 884 Micro (1900 MHz) Main Cabinet (Continued)

Slot Name Explanation Comments

11 ALM Alarm The ALM collects internal and external

equipment alarms.

12 ECU Environmental

Control Unit

The ECU controls temperature regulation inside

the cabinet. The ECU also provides alarms to

the TRXs and the ALM board for fan and heater

failures.

2.4 Equipped Microbase Subrack (EMBS) – Primary Cabinet

The EMBS – Primary Cabinet contains the RBS equipment units described

in this section. Figure 3-6 on page 3-11 shows the primary cabinet units in

their allocated positions. Variable-speed fans are located in the top of the

cabinet and the resulting air ﬂow is dimensioned to handle a

fully-equipped cabinet.

The RBS equipment units and fans are environmentally sealed to protect

circuit board traces and components from direct exposure to outside

cooling air.

12 354786 9 11 12 13

Power

Supply

Unit TRX ANP/RFTL TRX

CONN

EMRPM

BLANK

PANEL

ALM

ECU

BLANK

PANEL

Figure 3-6. RBS 884 Micro (1900 MHz) EMBS Front Panel — Primary Cabinet

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System Description

The RBS 884 Micro (1900 MHz) EMBS – Primary Cabinet contains the

following:

•Five Transceivers (TRX), including one Digital Veriﬁcation Module

(DVER) for digital trafﬁc. See Section 2.7 on page 3-15. The ﬁve

TRXs are installed as follows:

– Slot 1 (8 BM) – DCCH/DVC

– Slot 2 (8 BM) – DCCH/DVC

– Slot 4 (8 BM) – DCCH/DVC

– Slot 5 (8 BM) – DCCH/DVC

– Slot 6 (8 BM) – DVER

•One ANP/RFTL with integrated ﬁlter unit. The ANP/RFTL is

installed in slot 3 (10 BM).

•One Blank equipment unit or Dummy REMUX. The Dummy

REMUX is installed in slot 7 (8 BM).

•One Connector (CONN) Unit - relays signals from the REMUX and

STRM units in the main cabinet to the other units in the primary

cabinet. The CONN is installed in slot 8 (8 BM).

•One Extension Module Regional Processor, Micro (EMRPM) -

controls the TRX slots 1, 2, 4, 5, and 6. The EMRPM is installed in

slot 9 (8 BM)

•One EMRPM Dummy Unit- allows for future expansion for a second

EMRPM. This equipment unit is the same size as the EMRPM and

is used to ensure proper airﬂow through the unused subrack slot. The

EMRPM Dummy Unit is installed in slot No.10 (8 BM).

•One Alarm Unit (ALM) — provides maximum connection of 32

external alarms. External alarms are alarms for both internal and

external equipment that are deﬁned as external alarms on the ALM

board. There are no user deﬁned alarms. The ALM is installed in

slot 11 (10 BM).

•1 Environment Control Unit (ECU). The ECU is installed in slot 12

(10 BM).

Note: Unused TRX slots must be equipped with dummy TRXs or

Radio Matching Units (RMU). Other unused slots must have

an equipment unit (a blank panel along with a dummy board)

to assure proper airﬂow and electromagnetic shielding.

See Table 3-2 on page 3-13 for the complete EMBS primary cabinet

conﬁguration.

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System Description

Table 3-2. EMBS Conﬁguration for RBS 884 Micro (1900 MHz) Primary Cabinet

Slot Name Explanation Comments

1-2 TRX Transmit TRX The TRXs act as digital voice/control channels.

Slot 1 is recommended for the control channel

TRX.

3ANP/RFTL Antenna Near Part/Radio

Frequency Test Loop

The ANP provides transmit (TX) and receive

(RX) ﬁltering, low-noise ampliﬁer and RFTL

functionality.

4-5 TRX Transceiver The TRXs act as digital voice/control channels.

TRX slots which are not in use, must be

equipped with a dummy TRX or RMU.

6 TRX Transceiver with digital

veriﬁcation functionality

The TRX in slot 6 is used as a Personal

Communication Services (PCS) or DVER for

uplink measurements.

7Blank

module

Dummy TRX The dummy TRX or RMU is used to ensure

proper airﬂow through the unused subrack slot.

8CONN Connection Board The CONN board passes TRX signals to the

backplane.

9EMRPM Extension Module

Regional Processor Micro

The EMRPM controls the TRXs as well as the

REMUX, the ANP/RFTL, and the ALM units.

10 Blank

Module

Dummy EMRPM The Blank Module or equipment unit allows for

future expansion for a second EMRPM. This

equipment unit is the same size as the EMRPM

and is used to ensure proper airﬂow through the

unused subrack slot.

11 ALM Alarm The ALM collects internal and external

equipment alarms.

12 ECU Environmental Control

Unit

The ECU controls temperature regulation inside

the cabinet. The ECU also provides alarms to

the TRXs and the ALM board for fan and heater

failures.

2.5 Remote Multiplexer (REMUX)

The RBS 884 Micro (1900 MHz) contains a T1/E1 transmission unit

(REMUX) for a 24 channel or 32 channel PCM link with the MSC. The

incoming PCM is connected to the PCM Primary (Prim) connector on the

REMUX.

One REMUX unit is installed in slot No. 8 in the main cabinet.

For distances of greater than 200 meters, a customer-supplied Channel

Service Unit (CSU) can be mounted on the shelf above the main cabinet

heater.

Table 3-3 on page 3-14 shows the available REMUX types for T1 and E1

systems.

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System Description

Table 3-3. PCM System - REMUX

PCM System Type Distance to Nearest Active Device (For

Instance, CSU or Repeater) REMUX

T1 Short Haul

without external

Channel Service

Unit CSU

<200 m REMUX 24

T1 Long Haul

with external

CSU

<1800 m REMUX 24

E1 Short Haul <200 m REMUX 32SH

The REMUX switches are preset at the factory according to the

predetermined transmission requirements of the RBS 884 Micro (1900

MHz) site supplied by the site engineer.

The site engineer insures that the installer has access to documented

transmission speciﬁcations for the RBS 884 Micro (1900 MHz) site. It is

vital that the site engineer records all PCM line and switching information

in the site installation documentation.

2.6 Extension Module Regional Processor, Micro (EMRPM)

Each RBS 884 Micro (1900 MHz) cabinet contains one EMRPM unit

which controls TRX trafﬁc. An extra slot is provided for possible future

expansion for a second EMRPM unit to share the trafﬁc load. Ten devices

can be connected to each EMRPM unit with TLINK connections. These

are numbered TLINK 1 to TLINK 10.

The load capacity of the EMRPM allows up to four of the DVC TLINK

connections for TRXs. The EMRPM is assigned to control the REMUX

and the RFTL.

The incoming time slots are connected in a ﬁxed pattern, as shown in

Table 3-4 on page 3-14.

Table 3-4. RBS 884 Micro (1900 MHz) EMRPM 1

EMRPM TLINK Cabinet slot Function

1 1 TRX

2 2 TRX

3 4 TRX

4 5 TRX

6 6 DVER

7 11 ALM

9 3 ANP

10 7 REMUX

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System Description

The addresses of the EMRPM are set using a DIP switch on the unit. No

address plug is required. The address is dependent upon the conﬁguration

of the RBS site and number of cabinets used.

The site installation documentation shows how the switches are to be set

for a speciﬁc site.

A computer can be connected to the TW/DEB port at the front of the

EMRPM unit. The interface has the same function as the V24–B3 unit.

2.7 Transceiver (TRX)

The transceiver (TRX) transmits and receives radio signals to and from

mobile stations.

A TRX unit can be remotely conﬁgured to support any of the following

channel functions:

•Digital Voice Channel (DVC) – transmits and receives

•Digital Control Channel DCCH) – transmits and receives

•Digital Veriﬁcation (DVER) Channel – receives only

The selection of transceiver channel function is under software control at

the Mobile Switching Center (MSC). The ﬁrst time slot may be used for

DCCH and the remaining two time slots for DVCs, or all three time slots

may be used for DVCs.

The TRX provides 33.3 dBm (2.1 W) per carrier at the ANP for the two-

antenna conﬁguration and 36.8 dBm (4.8 W) per carrier at the ANP for the

four-antenna conﬁguration. The dynamic range is 20 dB with 0.2–dB

resolution.

The TRX includes all functionality needed for one RF channel, such as:

•Channel coding and decoding

•Modulation and demodulation

•Power ampliﬁcation

•Power regulation

•Synchronization

•Diversity combining

•Measurements on received radio signal

•Veriﬁcation processing (when conﬁgured as DVER)

The maximum output power for each TRX is 13.5 W. Note that digital

speech coding takes place in the voice coder units in the MSC and not in

the TRXs. There are four TRXs (carriers) for each antenna system, which

provides 11 digital voice paths per sector.

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System Description

Table 3-5 on page 3-16 shows the allocation slots for TRX units in

cabinets that are not fully equipped. In the following table, the TRX

positions shown in bold (X) represent factory installed units. All empty

slots must contain an RMU.

Note: The term transceiver or TRX is used in this document to refer

to the hardware unit itself and does not reﬂect the functionality

of the unit. Subrack position 6 must be equipped with a TRX

that functions as a receiver or Digital Veriﬁcation Module

(DVER).

Table 3-5. RBS 884 Micro (1900 MHz) TRX Unit Installation – Cabinet Not Fully

Equipped

TRX slot position in cabinet

No. of TRX 1 2 4 5 6

(DVER)

X X X

3X X X

X X X X

XXXX

5X X X X X

The maximum speech trafﬁc capacity for a three cabinet conﬁguration is

33 digital voice channels for both the American standard (T1 environment)

and the International standard (E1 environment).

In cascaded conﬁgurations one PCM time slot for speech is lost for each

additional signaling link.

2.8 Antenna Near Part (ANP)/Radio Frequency Test Loop (RFTL)

The combined Antenna Near Part (ANP), Radio Frequency Test Loop

(RFTL), and integrated ﬁlter unit provides combining and splitting of RF

signals to each antenna.

The main functions of the ANP/RFTL are as follows:

•Combine the output signal of the TRXs

•Filter TX and RX signals

•Protect the TRXs from high reﬂected power

•Pre-amplify and distribute RX signals

•Provide isolation between the TRXs

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System Description

•Calibrate TRX transmitter and receivers

•Antenna supervision

The ANP, RFTL, and integrated ﬁlters are combined in a single ANP/

RFTL assembly and reside in the subrack. The backplane of the subrack

contains a ﬁve–way power splitter for each receiver diversity branch. The

ANP/RFTL assembly provides a single signal for each diversity branch

with all splitting performed in the backplane. This design allows all ﬁve

TRXs to receive the same signal at the same level.

2.9 Environmental Control Unit

The Environmental Control Unit (ECU) runs a control loop that monitors

the internal cabinet temperature at several different locations. Using these

readings, the ECU maintains the cabinet at an acceptable temperature by

controlling the speed of the fans and the power to the heater. When the

ECU is unable to maintain the cabinet at an acceptable temperature, the

ECU provides alarms to the switch through the EMRPM and ALM boards

and can ultimately remove power from the subrack and shut down the base

station.

2.10 Fans

The RBS 884 Micro (1900 MHz) uses four variable speed-controlled fans

to regulate the temperature of the circuit cards and modules in the cabinet.

The fan control is driven by an open thermal control loop that references

the outside ambient air temperature. The temperature sensor for the fan

control is located in an area that is not affected by solar exposure nor by

power dissipation from the cabinet. The amount of air ﬂow through the

cabinet is limited to that required to maintain the components within their

temperature speciﬁcations.

The fans are controlled by the ECU. The ECU is capable of varying the

speed of the fans and can turn off one or more of the fans during low

temperature extremes and during cold temperature start-up. To insure fail-

safe operation, the fans operate at full speed when the thermal sensor

signal is lost.

The fans are modular units and can be easily accessed from the top door

of the RBS 884 Micro (1900 MHz) cabinet. Fan replacement is done with

the fan breaker in the ON position. Base station personnel cycle the fan

breaker off and on to reset the fan alarm after they complete the fan

replacement procedure. Refer to the RBS 884 Micro (1900 MHz)

Installation and Hardware Replacement Manual for further information on

the fan replacement procedure.

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System Description

2.11 Air Filter

The RBS 884 Micro (1900 MHz) cabinet is equipped with a cooling air

intake ﬁlter. The lower front panel of the cabinet is removable to gain

access for periodic ﬁlter replacement.

3 Installation Conﬁgurations

3.1 Limitations

One RBS cabinet can contain up to ﬁve transceivers, four of which can be

used for handling speech trafﬁc.

3.2 Standard Conﬁgurations RBS 884 Micro(1900 MHz)

The RBS 884 Micro (1900 MHz) cabinets are pre-conﬁgured and

assembled at the factory before delivery to the RBS site. It is the

responsibility of the site engineer to dimension the required conﬁguration.

When considering which conﬁguration to choose, the dimensioning of the

transceiver (TRX) units must be done. The RBS 884 Micro (1900 MHz)

can contain as few as three TRX units per cabinet. Additional capacity can

be added later.

The RBS 884 Micro (1900 MHz) product contains a number of cabinet

conﬁgurations depending on the following:

•AC power voltage: 110 V 60 Hz or 230 V 50 Hz

•Type of transmission: E1 or T1

•Antenna conﬁguration: 2 or 4 antennas

– Two antenna mounting: cabinet-mounted or external

– Four antenna mounting: external

•Frequency band: AD, DBE, or EFC

•Number of TRXs: 3, 4, or 5 (including 1 Digital Veriﬁcation

(DVER) unit)

The number of cabinets required at the RBS site can be one, two, or three,

depending on the number of TRX units and sectors determined for that

speciﬁc RBS site. The 1900 MHz base station cabinet can be conﬁgured to

perform as a main or as a primary cabinet by installing the appropriate

equipment units.

The conﬁguration diagrams in this section show cabinets (main, and

primary), PCM input, AC power input, antenna conﬁgurations, and

interconnections between cabinets. The cabinets are shown with maximum

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System Description

equipment installed. The PCM/TLINK/EMRPM, control, and

synchronization interconnections between cabinets are shown as DATA.

Each cabinet requires a separate electrical AC power input supply.

Table 3-6 on page 3-19 provides a list of the antenna and PCM cable

connection points that appear on the underside of the Mounting Base

Connector Plate.

Table 3-6. Mounting Base Connector Plate – External Cables

External Cable Connector Connector Plate Connection

Antenna TX/RX (1st) ANT - 1

Antenna TX/RX (2nd) ANT- 2

Antenna TX (1st) ANT- 3

Antenna TX (2nd) ANT- 4

PCM PCM - P

The PCM transmission connection from the RBS to the MSC connects

through the PCM lightening protection box that is located below the

subrack in the main cabinet.

Refer to the RF Guidelines for information on reverse isolation and the

output power levels for each conﬁguration.

3.2.1 One-Sector Site

The following cabinet conﬁgurations are available for the RBS 884 Micro

(1900 MHz) one-sector site.

3.2.1.1 Single Cabinet - 2 Duplex Filters, 2 TX/RX Antennas

Figure 3-7 on page 3-20 and Figure 3-8 on page 3-20 show one-sector site

conﬁgurations. Both of these conﬁgurations have a two-antenna ANP with

hybrid combiners and duplex ﬁlters connected to an antenna array of two

TX/RX antennas.

The ANP for both the cabinet-mounted antenna and the external antenna is

offered in the following frequency bands:

•AD

•DBE

•EFC

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System Description

MAIN

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

●●

TX/RX TX/RX

Two-Antenna

ANP

Figure 3-7. Cabinet Connections, RBS 884 Micro (1900 MHz) One-Sector Site – One

Cabinet – Two TX/RX Antennas

MAIN

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

●●

TX/RX TX/RX

Two-Antenna

ANP

Figure 3-8. Cabinet Connections, RBS 884 Micro (1900 MHz) One-Sector Site – One

Cabinet – Two Fixed Antennas

The Cabinet-Mounted Antenna Kit can be used to mount two ﬁxed

antennas directly on the cabinet for a totally self-contained base station.

Note: Single sector site expansion is possible with the use of shared

antennas and cell overlays, although RF performance may be

compromised.

3.2.1.2 Single Cabinet — 4 Antennas (2 TX/RX Antennas and 2 TX-Only Antennas)

Figure 3-9 on page 3-21 shows a one-sector site conﬁguration with a four-

antenna ANP connected to an antenna array of two TX-only antennas and

two TX/RX antennas with duplex ﬁlters.

The four-antenna ANP is offered in the following frequency bands:

•AD

•DBE

•EFC

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System Description

MAIN

CABINET

AC POWER 110V/230V

PCM (T1/E1)

●●

TX TX/RX

●●

TX/RX TX

Four-Antenna

ANP

Figure 3-9. Cabinet Connections, RBS 884 Micro (1900 MHz) One-Sector Site – 1

Cabinet – 4 Antennas

Note: Single sector site expansion is possible with the use of shared

antennas and cell overlays although RF performance may be

compromised.

3.2.2 Two-Sector Site

The following cabinet conﬁgurations are available for the RBS 884 Micro

(1900 MHz) two-sector site.

3.2.2.1 Dual Cabinets — 2 TX/RX Antennas

Figure 3-10 on page 3-22 and Figure 3-11 on page 3-22 show two-sector

site conﬁgurations with a main and a primary cabinet. Each cabinet has a

two-antenna ANP with hybrid combiner ﬁlters and duplex ﬁlters connected

to an antenna array of two TX/RX antennas.

The two-antenna ANP for both the cabinet-mounted antenna and the

external antenna is offered in the following frequency bands:

•AD

•DBE

•EFC

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System Description

PRIMARY

CABINET MAIN

CABINET

POWER (110V/230V)

PCM (T1/E1)

●●

TX/RX TX/RX

DATA

●●

TX/RX

Two-Antenna

ANP

Two-Antenna

ANP

Figure 3-10. Two-Sector Site - 2 Cabinets - 2 TX/RX Antennas

PRIMARY

CABINET MAIN

CABINET

POWER (110V/230V)

PCM (T1/E1)

DATA

●●

TX/RX TX/RX TX/RX TX/RX

Two-Antenna

ANP

Two-Antenna

ANP

Figure 3-11. Cabinet Connections, RBS 884 Micro (1900 MHz) Two-Sector Site – 2

Cabinets – 2 Fixed Antennas

The Cabinet-Mounted Antenna Kit can be used to mount two ﬁxed

antennas on each cabinet for a totally self-contained base station site.

3.2.2.2 Dual Cabinets — 4 Antennas (2 TX/RX Antennas and 2 TX-Only Antennas)

Figure 3-12 on page 3-23 shows a two-sector site conﬁguration with a

main and a primary cabinet. Each cabinet has a four-antenna ANP

connected to an antenna array of two TX-only antennas and two TX/RX

antennas with duplex ﬁlters.

The four-antenna ANP is offered in the following frequency bands:

•AD

•DBE

•EFC

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System Description

PRIMARY

CABINET MAIN

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

DATA

●●

TX TX/RX

●●

TX/RX TX

●

TX/RX

●●

TX/RX

●

Four-Antenna

ANP

Four-Antenna

ANP

Figure 3-12. Two-Sector Site - 2 Cabinets - 4 Antennas

3.2.3 Three-Sector Site

The following cabinet conﬁgurations are available for the RBS 884 Micro

(1900 MHz) in a three-sector site.

3.2.3.1 Triple Cabinets — 2 TX/RX Antennas

Figure 3-13 on page 3-24 and Figure 3-14 on page 3-24 show three-sector

site conﬁgurations with a main and two primary cabinets. Each cabinet has

a two-antenna ANP with hybrid combiner ﬁlters and duplex ﬁlters

connected to an antenna array of two TX/RX antennas. The primary

cabinets are used to provide additional sectors.

The two-antenna ANP for both the cabinet-mounted antenna and the

external antenna is offered in the following frequency bands:

•AD

•DBE

•EFC

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System Description

DATA

PRIMARY 1

CABINET MAIN

CABINET PRIMARY 2

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

●●

TX/RX TX/RX

●●

TX/RX TX/RX TX/RX TX/RX

Two-Antenna

ANP

Two-Antenna

ANP

Two-Antenna

ANP

Figure 3-13. Cabinet Connections, RBS 884 Micro (1900 MHz) Three-Sector Site - 3

Cabinets - 2 TX/RX Antennas

DATA

PRIMARY 1

CABINET MAIN

CABINET PRIMARY 2

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

●●

TX/RX TX/RX TX/RX TX/RX TX/RX TX/RX

Two-Antenna

ANP

Two-Antenna

ANP

Two-Antenna

ANP

Figure 3-14. Cabinet Connections, RBS 884 Micro (1900 MHz) Three-Sector Site – 2

Cabinets – 2 Fixed Antennas

The Cabinet-Mounted Antenna Kit can be used to mount two ﬁxed

antennas to each cabinet for a totally self-contained base station site.

3.2.3.2 Triple Cabinets — 4 Antennas (2 TX/RX Antennas, 2 TX-Only Antennas)

Figure 3-15 on page 3-25 shows a three-sector site conﬁguration with one

main and two primary cabinets. Each cabinet has a four-antenna ANP

connected to an antenna array of two TX-only antennas and two TX/RX

antennas with duplex ﬁlters.

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System Description

The four-antenna ANP is offered in the following frequency bands:

•AD

•DBE

•EFC

PRIMARY 1

CABINET MAIN

CABINET PRIMARY 2

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

DATA

●

TX/RX

●●

TX/RX

●

TX TX/RX

●●

TX/RX TX

●

TX TX/RX

●●

TX/RX

● ●

Four-Antenna

ANP

Four-Antenna

ANP

Four-Antenna

Figure 3-15. Cabinet Connections, RBS 884 Micro (1900 MHz) Three-Sector Site - 3

Cabinets - 4 Antennas

3.2.3.3 Cascade Conﬁgurations — RBS 884 Micro (1900 MHz)

RBS 884 Micro (1900 MHz) systems can be connected in a cascading

arrangement (see Figure 3-16 on page 3-26) with a single T1/E1 line in

order to reduce transmission costs. Cascading is used to expand a site and

to create different Radio Cabinet Groups (RCGs) at the same site.

Drop and insert considerations become important when planning the

cascading of an RBS site.

Each 1900 MHz micro base will become a separate Extension Module

Group (EMG) and have its own control channel (DS0 - 64 kbit/s channel)

on the PCM (T1/E1) transmission cable interconnections.

Additional Control Signaling Link (CLC) extraction time slots will be

required for each additional REMUX introduced to support cascading.

This allocation is determined by the operator or network provider. Each

REMUX will require all switch settings to be checked and reset as

necessary (see the Processes and Procedures part of this manual).

To maintain transmission quality, it is recommended that no more than

four RBS 884 Micro (1900 MHz) base stations be cascaded.

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System Description

MSC

PCM (T1/E1)

MB1 MB2 MB3

MB = Micro Base

Figure 3-16. RBS 884 Micro (1900 MHz) Cascade Conﬁguration

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Part 4

Installation

1 Introduction . ................. 4-3

2 Safety Considerations . ............ 4-3

2.1 Cabinet Grounding ............ 4-3

2.2 Voltage Hazards . ............ 4-3

2.3 Radio Frequency Radiation ........ 4-4

2.4 Beryllium Oxide . ............ 4-4

2.5 Heavy Loads . . . ............ 4-5

3 Electrostatic Discharge (ESD) . . ........ 4-5

3.1 Storage and Transport . . ........ 4-6

3.2 ESD Wrist Strap . ............ 4-6

4 Tools . ..................... 4-6

5 Site Selection . ................. 4-7

5.1 Right-of-Way . . . ............ 4-7

5.2 Public Safety . . . ............ 4-7

5.3 Vulnerability . . . ............ 4-8

5.4 Accessibility . . . ............ 4-8

6 Transportation and Storage . . . ........ 4-8

7 Unpacking . . ................. 4-9

7.1 Required Tools . . ............ 4-9

7.2 Unpacking Procedure . . . ........ 4-10

8 Cabinet Installation . . . ............ 4-12

8.1 Required Materials and Tools . . . .... 4-12

8.2 Installation on a Pad . . . ........ 4-12

8.3 Installation on a Pole . . . ........ 4-15

8.4 Installation on a Wall . . . ........ 4-18

8.5 Installation on a Roof . . . ........ 4-21

9 Cable and Power Connections . ........ 4-22

9.1 Grounding ................ 4-22

9.2 Installing Batteries ............ 4-23

9.3 Installing AC Power ............ 4-26

9.4 Cable Installation . ............ 4-28

10 Setting the Unit Switches ............ 4-34

10.1 Prerequisites and Tools . . ........ 4-35

10.2 REMUX Switch Settings . ........ 4-36

10.3 EMRPM Switch Settings . ........ 4-44

11 External Cable Installation . . . ........ 4-45

11.1 Required Materials and Tools . . . .... 4-46

11.2 Antenna Connections . . . ........ 4-47

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Installation

11.3 ANP/RFTL Connections .......... 4-47

12 Site Inventory .................. 4-53

12.1 Prerequisites . .............. 4-53

12.2 Site Inventory Procedure ......... 4-53

13 Equipment Power Up .............. 4-54

13.1 Prerequisites and Test Equipment ..... 4-55

13.2 Power-Up Procedure . .......... 4-55

14 Cold Start-up .................. 4-57

15 Completing the Installation . .......... 4-58

15.1 Prerequisites and Tools .......... 4-58

15.2 Installation Completion Procedure ..... 4-58

16 LED Indications . . . .............. 4-59

16.1 PSU LEDs . . .............. 4-60

16.2 TRX LEDs . . .............. 4-60

16.3 REMUX LEDs .............. 4-61

16.4 ANP (RFTL) LEDs . . .......... 4-61

16.5 STRM LEDs . .............. 4-62

16.6 ALM LEDs . . .............. 4-62

16.7 EMRPM LEDs .............. 4-63

16.8 ECU LEDs . . .............. 4-63

17 Site Expansion . . . .............. 4-64

17.1 Adding TRX Boards . .......... 4-65

17.2 Adding Cabinets . . . .......... 4-69

17.3 One-Sector Sites . . . .......... 4-72

17.4 Two-Sector Sites . . . .......... 4-74

17.5 Three Sector Sites . . .......... 4-77

18 RBS 884 Micro (1900 MHz) Cabinet Repainting . 4-83

18.1 Required Materials and Tools . . ..... 4-83

18.2 Cabinet Surface Preparation . . ..... 4-83

18.3 Cabinet Painting . . . .......... 4-84

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Installation

1 Introduction

This part of the manual contains procedures for unpacking and installing

the RBS 884 Micro (1900 MHz) equipment. Additional procedures are

provided for switch conﬁguration, cable installation, power up, and site

expansion.

The RBS 884 Micro (1900 MHz) cabinet can be installed on a wall, a

pole, or pedestal. The cabinet can also be repainted (refer to Section 18.3

on page 4-84).

2 Safety Considerations

2.1 Cabinet Grounding

This product is Safety class 1 equipment.

The RBS 884 Micro (1900 MHz) cabinet wiring is based on a single-point

ground system. The cabinet has an external earth-ground stud connection

on the bottom surface of the cabinet shell.

DANGER!

Any interruption of the protective (grounding) conductor or disconnection

of the protective ground terminal will cause a potential shock hazard that

could result in personal injury.

2.2 Voltage Hazards

DANGER!

Voltage over 100V is used in the AC equipment at the site. Observe safety

precautions. Contact with power can cause death. Do not be misled by the

term “low voltage.” Potentials as low as 50V can result in death.

Do not touch high voltage connections when working on energized

equipment.

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Installation

DANGER!

Do not energize equipment before the Power Up procedure in this manual

is performed.

Perform the procedures in the order presented.

DANGER!

Never connect the power cable to the power unit when the unit is removed

from the cabinet.

2.3 Radio Frequency Radiation

DANGER!

Radio frequency radiation from an antenna may be a danger to health,

causing severe burns to skin and clothing.

Tell the MSC turn off the transmitters prior to working with or near

antennas.

2.4 Beryllium Oxide

Some equipment contains beryllium oxide in ceramic form.

Warning!

Beryllium oxide is poisonous and constitutes a health hazard if present in

ﬁnely dispersed form, such as dust or smoke, which can be inhaled. Read

local hazardous chemical regulations before working with beryllium oxide.

Units with components containing beryllium oxide are marked with a

warning label. For detailed information on properties, health and

environmental hazards, refer to the regulations issued by the local

authorities.

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Installation

The following rules must be obeyed by all persons handling beryllium

oxide:

•Ceramics containing beryllium oxide must not be scraped, ﬁled,

ground, treated with acid or machined in any other way.

•Compressed air must not be used to clean units containing beryllium

oxide.

•You must always wear protective gloves when handling beryllium

oxide.

•Use wet rags to collect dust and particles from damaged beryllium

oxide components. After use, place the rags in plastic bags and seal

the bags completely.

Scrapped beryllium oxide must be treated as environmentally hazardous

waste. Local authorities enforce regulations, regarding the treatment and

disposal of environmentally hazardous waste. Investigate the local

regulations which are applicable to you and comply with them.

2.5 Heavy Loads

Warning!

A heavy load lifted incorrectly can cause injury to persons and damage to

the equipment can result.

A heavy load is considered to be 10 kg (approximately 22 lbs).

Note: The RBS 884 Micro (1900 MHz), fully equipped, weighs 105

kg (230 lbs). Ericsson recommends two persons be present

during the maintenance.

3 Electrostatic Discharge (ESD)

The human body acquires static charge in all situations involving

movement. The body rubs against clothes and against a chair when sitting

down, and shoes rub against the ﬂoor. The same effect is achieved when

handling ordinary plastic materials.

If the body comes into contact with a grounded integrated circuit (IC)

component, this static charge may cause an electrostatic discharge (ESD)

to take place resulting in damage to the component.

To avoid component damage from ESD, always follow the instructions

for handling sensitive electronic components and circuit boards.

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Installation

Always use ESD protection equipment when working with such

components and boards.

3.1 Storage and Transport

Store and transport components and circuit boards in their original

packaging.

Alternatively, use a conductive material or special IC carrier that either

short-circuits all contacts and pins, or insulates them from external contact.

3.2 ESD Wrist Strap

When working with circuit boards and cables, an ESD Wrist Strap must be

used to avoid ESD damage. When the strap cable is supplied with a

“alligator” connector, it can be connected to an unpainted metal part of the

cabinet chassis as shown in Figure 4-1 on page 4-6.

ESD Wrist Strap

Note: Attach alligator clip to suitable

ground (unpainted surface) in cabinet.

Figure 4-1. ESD Wrist Strap connected to the RBS 884 Micro (1900 MHz) Cabinet

4 Tools

All the tools needed to unpack and install the cabinets, to connect the

grounding cables and braids, to set the switches, to install the cables, and

to perform power up, are shown in Table 5-1 on page 5-7.

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Installation

Table 4-1. Tools List

Product Number Description

Metric Tape Measure1

Horizontal/Vertical Level1

(for wall mounting)

Pen

Drill1

Drill Bit1(10 mm for wall mounting)

LYB 250 01/14 ESD Wrist Strap and Cable2(with banana connector)

LTT 601 82 Torque Wrench set including:

- Torque Wrench set to torque 0.6 Nm

(to use with the SMA tool or the Torx bit TX10

- Torx bit TX10 (for cabinet unit screws)

- SMA tool (for the coaxial cables)

LTD 117 02 and

LTD 117 14

Unit Extractor Tool (Handle + Button)

AC Voltmeter1

(for checking the line voltage)

Tools for connecting the AC Power Cable to a Line

Power Access Point (if this is the local procedure)

1Included in Tool Kit LTT 601 044/1

2Included in Tool Case LTT 601 84

5 Site Selection

5.1 Right-of-Way

The installing company should acquire the rights of way from landowners

and obtain permits or other approvals from public authorities before

starting construction.

The RBS 884 Micro (1900 MHz) cabinet should be placed in servitudes,

on dedicated (recorded) easements, or on property owned by the company.

Avoid unrecorded easements.

If the location is on a rooftop, the same rights-of-way as stated above

apply. Additional considerations and approvals may be required, such as

rooftop loading

5.2 Public Safety

Public safety and street rights-of-way should be used only when there is

adequate space to place the cabinet and provide safe working conditions.

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Installation

The cabinet should be placed so that it will not obstruct automobile or

pedestrian trafﬁc.

5.3 Vulnerability

Installation locations should be protected against accidents or vandalism.

Use protected posts when installing cabinets near automobile trafﬁc and

parking areas.

Do not place the cabinets below grade or in ﬂood prone areas. The cabinet

should always be located on a site above the 100–year ﬂood plain. The site

should not be subject to water run off or ﬂash ﬂooding during heavy rains.

If an area is subject to frost, the site must be free of heaving.

For pole-mounted cabinets, ensure the pole can support the cabinet weight

(approximately 105 kg (230 lbs).

5.4 Accessibility

For safety, the cabinet should be easily accessible with adequate parking.

Do not install the cabinet within 42.0 inches (1066.8 mm) of any

obstruction, such as a fence, hedge, or tree.

6 Transportation and Storage

Caution!

Follow all appropriate local transportation, handling, and safety practices

when transporting and storing the cabinet to a staging or installation site.

The cabinet is shipped in a wooden box on a wooden pallet.

Warning!

To avoid possible damage to the cabinet, do not remove the packaging or

pallet from the cabinet until it is at the installation or staging site.

If the cabinet packaging appears damaged, do not accept the unit or

component from the shipper. Damaged packaging could indicate cabinet or

equipment damage.

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Installation

Always use proper lifting equipment, such as forklift, to raise the cabinet

and pallet.

Always store the cabinet and battery components in the upright position to

avoid possible damage.

Caution!

Do not stack units for transportation or during storage.

7 Unpacking

The RBS 884 Micro (1900 MHz) cabinet is shipped in a wooden box on a

wood pallet.

7.1 Required Tools

The tools required to unpack the cabinet are shown in Table 4-2 on page

4-9.

Table 4-2. Tools Required to Unpack cabinet

Product Number Description

N/A Tamper resistant wrench (supplied with cabinet)

N/A Socket or adjustable wrench (for pallet bolts)

N/A Hammer

N/A Large ﬂat-blade screwdriver

N/A Small ﬂat pry bar or crow bar

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Installation

7.2 Unpacking Procedure

7.2.1 Receiving Materials

Warning!

To avoid damaging the cabinet, do not remove the pallet or wooden box

from the cabinet until the cabinet is transported to a staging or installation

site.

1. After receiving all materials, check packing slip to ensure that all

boxes/crates are accounted for.

2. Inspect all boxes and crates for any visible damage.

3. Report any material shortages or damages to your local logistics

coordinator.

7.2.2 Unpacking

1. Remove all packaging material from around the cabinet and the

pallet.

Note: Do not remove the pallet until the cabinet is ready to be

lifted into the mounting position.

2. Use a tamper-resistant wrench to open the doors. Insert the wrench

into a security bolt and turn it 1/4–turn counterclockwise. Repeat

for the other bolt. Open the door.

Note: The 1/4-turn tamper resistant wrench is in a plastic bag

taped to the outside of the Main Cabinet.

3. As the door is opened, secure the wind latch at the top of the door.

Open the door until the shoulder slides into the slot at the end of

the bar. To release the wind latch, lift up on the bar.

4. Inspect moving parts, mounting hardware, connectors, and

electronic equipment. If the cabinet or any equipment appears to be

damaged, follow the local procedures or contact the logistics

coordinator.

5. Check the packing slip and ensure all parts ordered are received.

6. Remove all packaging and dispose of it according to local practices.

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Installation

7.2.3 Lifting the Cabinet

DANGER!

To avoid injury or equipment damage, follow all local safety practices

while lifting the cabinet. Wear all locally recommended safety equipment.

Manual cabinet lifting is not recommended. To avoid injury, use proper

lifting equipment. Attach any lifting equipment to lifting ears located on

rear of cabinet. Ensure there are no obstructions around cabinet.

Warning!

The RBS 884 Micro (1900 MHz) cabinet will tilt forward when raised by

the lifting ears located on the rear of the cabinet.

Observe the following procedures when lifting the RBS 884 Micro (1900

MHz) cabinet from the pallet:

•Keep bystanders away from work operations at all times.

•Do not lift the cabinet over people. Do not let anyone work, stand,

or pass under a cabinet being lifted.

•All persons working with lifting equipment must wear standard

safety headgear and (when required) gloves.

•When lifting the cabinet and pallet with a forklift use care to not

damage cabinet with forks. Lift from the open ends of the pallet.

•For installations where the cabinet will be mounted at higher

locations on a wall or pole, a crane or similar lifting equipment is

recommended. Do not attempt to manually lift cabinet. Follow all

local safety practices.

7.2.4 Removing Cabinet from Pallet

Perform the following steps to remove the cabinet from the pallet:

1. Locate the four pallet mounting bolts. There four bolts (one in

each corner) in the bottom of the cabinet. Using a socket wrench

or adjustable wrench, remove the four pallet mounting bolts.

2. Secure the cabinet door before moving the cabinet.

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Installation

8 Cabinet Installation

This section describes the procedure for installing the RBS 884 Micro

(1900 MHz) cabinet on a pad, pole, wall, or roof. Manual cabinet lifting is

not recommended. The RBS 884 Micro (1900 MHz) cabinet requires

mechanical lift assistance for wall or pole mounting. Attach any lift

devices to lifting ears on rear of cabinet. If required, a temporary support

structure can be installed prior to installing the cabinet. Position the

cabinet on the support structure during installation. Do not stand under

cabinet at any time.

8.1 Required Materials and Tools

8.1.1 Materials

Refer to the CMS 8800 Site Materials Catalog for general materials to

install the RBS 884 Micro (1900 MHz) antennas and cables. Cabinet

mounting materials are speciﬁed in the individual installation procedures.

8.1.2 Tools

The tools required to mount RBS 884 Micro (1900 MHz) cabinets are

shown in Table 4-3 on page 4-12.

Table 4-3. Tools for Cabinet Installation

Product Number Description

N/A Mechanical lifting equipment capable of supporting

cabinet weight (refer to local safety procedures)

N/A Metric Tape Measure

N/A Horizontal/Vertical Spirit Level

N/A Pen

N/A Drill

N/A 10 mm Drill Bit

N/A M13 Socket Wrench

LSA 126 21/30 Torx Angle Screwdriver TX30

8.2 Installation on a Pad

The pedestal base mounting kit is used for pad mounting RBS 884 Micro

(1900 MHz) cabinets. The pedestal base mounts on a concrete pad and is

used as the base for the cabinet. A removable front panel allows easy

access for installation of the pedestal, cabinet, and any cables.

Knock-outs are provided at both ends for routing the cables through the

side walls of the pedestal base to the underside of the cabinet ﬂoor. The

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Installation

knock-outs are not used if the cables enter the pedestal through conduits

from beneath the pad.

Patterned vents allow sufﬁcient air ﬂow to enter the cabinet for the cabinet

cooling/heating requirements.

1. Clean all litter from the foundation pad surface.

2. Dress the cable or conduit to not interfere with the pedestal base

installation.

3. Remove any bolts and washers installed in the concrete anchors. Set

the hardware aside to attach the pedestal base to the pad.

4. Locate the Pedestal Mounting Kit.

5. Place the pedestal base on the concrete pad. Figure 4-2 on page 4-13

illustrates the pedestal base. Align the pedestal base with the screw

anchors that were installed when the concrete pad was poured. If the

screw anchors were not installed at that time, use the pedestal base to

mark the mounting holes for the anchors and drill. See Figure 4-3 on

page 4-14 for the location of the mounting holes on the pedestal base.

Depth

432 MM

(17.0 IN)

Height

305 MM

(12.0 IN)

Removable front panel

for access to cables

and mounting points

under cabinet Width

610 MM

(24.0 IN)

Vents for air entry

into cabinet

Knock-outs for

cable entry/exit

Pedestal Base for Pad Mounting

the RBS 884 Micro (1900 MHz)

cabinet

Figure 4-2. Pedestal Base

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Installation

Bottom view of pedestal base

showing mounting pattern

for securing to concrete pad

Front of Pedestal

10.75"

(273.05 mm)

2.63"

(66.80 mm)

3.62"

(91.95 mm)

1.00"

(25.4 mm)

22.00

(558.80 mm) 1.00

(25.4 mm)

Figure 4-3. Bottom View of Pedestal Mount

6. Attach the pedestal base to the concrete pad and secure with the

appropriate size bolts.

DANGER!

To avoid injury or equipment damage, follow all local safety

practices while lifting the cabinet. Wear all locally approved safety

gear. Manual cabinet lifting is not recommended. Use proper lifting

equipment. Attach any lifting devices to lifting ears on rear of

cabinet. Keep bystanders away from work operations at all times.

Warning!

The RBS 884 Micro (1900 MHz) cabinet will tilt forward when

raised by the lifting ears located on the rear of the cabinet.

Place the cabinet onto the pedestal pad mount. Ensure the cabinet is

aligned with the pedestal.

8. Use the tamper-resistant wrench and remove the front panel on the

pedestal base. Secure the cabinet to the pedestal base.

9. If not using cabinet mounted antennas, remove lifting ears from the

cabinet (optional).

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Installation

10. Install any cabinet mounted antennas.

8.3 Installation on a Pole

Warning!

For installations where the RBS 884 Micro (1900 MHz) cabinet will be

pole mounted, a crane or similar lifting equipment is recommended.

Ensure the cabinet is supported by the lifting equipment at all times during

the installation. The cabinet will tilt forward when raised by the lifting

ears located on the rear of the cabinet. Keep bystanders away from the

work area at all times.

1. Locate the Pole Mounting Kit.

2. A detachable mounting bracket secures the cabinet to the pole. See

Figure 4-4 on page 4-16.

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Installation

Mounting Strap

Pole/Wall Mount Bracket

Figure 4-4. Pole-Mount Components

3. Check the components in the Pole Mounting Kit and verify the kit is

complete.

Note: If the pole-mount bracket is to be bolted to pole,

mark and drill holes in the pole prior to lifting bracket into location.

If two or more cabinets are to be installed, a minimum of 12 inches

(305 mm) clearance must be maintained between cabinets.Install the

pole-mount bracket on the pole at the desired height (see site survey

documentation). Ensure the bracket is level and tighten the hardware.

See Figure 4-5 on page 4-17.

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Installation

Figure 4-5. Rear View of Bracket Installed on Pole

5. Locate the four mounting bolts (one in each corner) in the base of

the cabinet. Remove the four pallet mounting bolts. Remove the

pallet and dispose in accordance with local practices.

6. Secure the cabinet door before lifting the cabinet.

Warning!

Ensure the cabinet is supported by the lifting equipment at all times

during the installation. The RBS 884 Micro (1900 MHz) cabinet will

tilt forward when raised by the lifting ears located on the rear of the

cabinet.

Caution!

Do not lift the cabinet over people. Do not let anyone work, stand,

or pass under a cabinet while it is being lifted.

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Installation

Attach the lifting cables or sling to the lifting ears on the mounting

bracket. Carefully lift the cabinet and set the cabinet on the

mounting bracket attached to the pole. See Figure 4-6 on page 4-18.

L-Bracket

Figure 4-6. Cabinet Mounted on T-Bracket

8. If required, adjust cabinet horizontally to align with L-bracket.

9. Install the L-bracket to the bottom of the cabinet.

10. Install any cabinet mounted antennas.

8.4 Installation on a Wall

Warning!

Ensure the cabinet is supported by the lifting equipment at all times

during the installation. The RBS 884 Micro (1900 MHz) cabinet will

tilt forward when raised by the lifting ears located on the rear of the

cabinet.

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Installation

Caution!

A fully conﬁgured cabinet weighs over 105 kg (230 lbs). Ensure the

wall can support the cabinet. Reinforce the wall structure if

necessary.

1. Ensure the cabinet is upright

2. Locate the Wall Mounting Kit. See Figure 4-7 on page 4-19.

Mounting Bracket

Hardware

Figure 4-7. Wall-Mount Components

3. Check the components in the wall mounting kit and verify the kit is

complete.

4. Locate the place on the wall where the bracket will be mounted and

drill holes appropriate for the length of the anchor to be used. Table

4-4 on page 4-20 is a list of the suggested anchoring hardware.

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Installation

Table 4-4. Wall Anchors

Type of Wall Recommended Anchor

Masonry 4-1/4-in. x 1-1/4-in. hammer drive anchors

Wood 4-1/2-in. No. 14 RH galvanized wood screws

Hollow Hollow wall mounting not recommended

5. Secure the bracket to the wall using an appropriate anchor. See

Figure 4-8 on page 4-20. Level the bracket before tightening the

bolts.

Figure 4-8. Installing Cross Arm to Wall

6. Locate the four mounting bolts (one in each corner) in the base of

the cabinet. Remove the four pallet mounting bolts. Remove the

pallet and dispose of it in accordance with local practices.

7. Secure the cabinet door before lifting the cabinet.

Caution!

A fully conﬁgured cabinet weighs 105 kg (230 lbs). Mechanical

lifting equipment is required to lift cabinet into position. Manual

lifting is not recommended.

Lift the cabinet and place it on the cross arm bracket.

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Installation

9. If required, adjust cabinet horizontally to align with L-bracket.

10. Install the L-bracket to the bottom of the cabinet. See Figure 4-9 on

page 4-21.

L-Bracket

Figure 4-9. Wall Mounted cabinet

11. Install any cabinet mounted antennas.

8.5 Installation on a Roof

1. Locate the four base mounting bolts (one in each corner) in the

bottom of the cabinets.

2. Remove the four pallet mounting bolts. Remove the pallet and

dispose of in accordance with local practices.

3. Secure the cabinet door before lifting the cabinet.

4. Roof mounted cabinet installations vary depending on the site

conﬁguration and type of roof. Refer to the site speciﬁc engineering

speciﬁcations for further information on a roof mounted cabinet.

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Installation

9 Cable and Power Connections

9.1 Grounding

Warning!

Follow all local safety practices, observe all general safety precautions,

and wear all approved safety equipment when performing any grounding

procedures. Perform all required testing before and after cabinet

installation. Only qualiﬁed personnel or electricians should install the

ground connections.

Caution!

Ensure all local all building codes and National Electrical Code® (NEC)

are met when installing grounding.

Note: Ensure all ground connections are clean and free of oxidation

or rust. Clean all contact surfaces as required

9.1.1 Perimeter Ground (Pad-Mount only)

1. Install the earth ground or ground ring before installing the cabinet.

2. Ensure that the earth ground or ground ring is connected to the

principal ground.

3. Connect all antennas to a ground point according to the Site

Engineering Manual, speciﬁc engineering speciﬁcations, and

installation drawings.

4. Coax transmission cable (50 ohm) passes through the supplied

lightning surge suppressors on the earthing plate.

5. Use an ammeter and check to ensure there is no AC or DC current

on cables already terminated to the earth ground point. If current is

present, do not proceed with further grounding until the current no

longer exists.

Note: The ﬁeld ground can accept a 10-gauge solid to a

2-gauge stranded copper ground wire.

9.1.2 Cabinet Ground Cabling

The RBS 884 Micro (1900 MHz) earth ground is connected to an external

grounding lug located on the bottom shell of the cabinet.

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Installation

9.2 Installing Batteries

Warning!

Equipment temperatures can reach up to 60 C (140 F). Use extreme caution

when working around the battery enclosure or other internal components.

Caution!

To avoid injury or equipment damage, follow all locally approved safety

practices and wear appropriate safety equipment when working with

batteries. Turn off power to the 40A breaker so there is no power supplied

to the cabinet.

A +24Vdc battery system is standard with the cabinet for two minutes of

battery reserve. Two 12V batteries are installed in the battery tray in the

lower left area of the cabinet. The batteries are connected in series by a

copper strap.

Note: All batteries are conﬁgured with steel cases for applications

where temperatures can reach up to 60 C (140 F).

Use the following steps to install the batteries into the tray and connect the

batteries to the system:

Note: The ﬂoat is calibrated for +27.0 to 27.6 Vdc at the batteries.

The ﬂoat is set at the factory and sealed. This setting is not

adjusted by the user.

Note: Torque at the bolt is 50 in-lbs maximum.

1. Position the BAT circuit breaker on the left side of the AC/DC

Distribution Box to OFF. See Figure 4-10 on page 4-24.

2. Remove the four screws from the battery cover and remove the

cover from the battery compartment.

3. If installed, remove the battery hold-down bracket(s) from left wall

of battery compartment.

4. Remove the battery tray from the battery compartment. Ensure

battery heater remains in position in bottom of compartment.

5. Install the batteries into the battery tray as illustrated in Figure 4-11

on page 4-25. Attach the hold-down bracket to the battery tray.

6. Connect the center terminals (positive terminal of battery 1 to

negative terminal of battery 2) with the copper strap. Do not

tighten the negative terminal of battery 2 at this time. See Figure

4-11 on page 4-25

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Installation

7. Connect the battery cable assembly to the batteries as follows:

– Connect the 8-gauge red cable to the positive terminal (+) of

battery 2. See Figure 4-11 on page 4-25.

Note: Ensure that the battery connections will not contact

wall of battery compartment or cover. Reposition

connectors as necessary to provide clearance.

– Connect the 8-gauge black cable to the negative terminal (-) of

battery 1.

– Connect one of the 18-gauge white wires labeled POST to the

negative terminal of battery 1. Connect the other 18–gauge

white wire to the negative terminal of battery 2.

8. Tighten all remaining battery connections.

9. Install the battery tray assembly in the battery compartment.

Ensure the battery cable assembly is not pinched against the battery

compartment. Ensure the battery heater is in proper location under

battery tray.

10. Place the hold-down bracket over the screw on the side wall of the

battery compartment. Secure with a hex nut.

11. Connect the power connector of the battery cable assembly to the

connector at the top of the battery compartment.

12. Connect the Failed Battery Sensor connector.

13. Install the battery cover on the battery compartment with the four

screws.

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 4-10. AC/DC Distribution Box

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Installation

Copper Strap

Battery 1

Battery 2

Battery Tray

Battery Heater

Failed Battery

Sensor Connector

Figure 4-11. Battery Installation in Cabinet

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Installation

9.3 Installing AC Power

DANGER!

AC power can result in death, injury, or equipment damage. Observe all

safety precautions as speciﬁed by local building codes and the National

Electrical Code® (NEC). All procedures should be performed by a

licensed electrician.

DANGER!

Before installation, bond the AC grounding electrode system to an AC

main service power neutral/ground bus. Contact the local power company

or the appropriate local personnel for information about codes or

restrictions for the installation.

Note: The cabinet requires 110V, 60 Hz or 230V, 50 Hz, two-wire

plus ground commercial power. All AC equipment from the

service drop to the pad is provided locally. Consult the NEC

and local codes for the correct wire size, as the wire size

depends on the distance to the source. Figure 4-12 on page

4-27 shows the location of the AC/DC Distribution Box in the

cabinet.

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Installation

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 4-12. AC/DC Distribution Box

1. Before installing the AC power, ensure that the AC ground system

is installed. The ground system must be in compliance with local

practices and building codes. Refer to the Site Engineering Manual

for more information.

2. Open the cabinet and open the AC/DC Distribution Box.

3. Install liquid-tight conduit through bottom of cabinet up to 90

conduit ﬁtting located on right side of AC/DC Distribution Box.

4. Ensure the opening in the bottom of the cabinet is sealed with a

conduit ﬁtting or other device to prevent air and water leakage into

cabinet.

5. Pull AC and ground wires through conduit into the AC/DC

Distribution Box.

6. Connect ground wire to ground bus inside AC/DC Distribution Box.

7. Connect neutral wire to neutral bus inside AC/DC Distribution Box.

8. Remove clear cover from rear of circuit breakers and install line

wire to the bus bar on the Main circuit breaker.

9. Replace clear cover on rear of circuit breakers and close AC/DC

Distribution Box.

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Installation

9.4 Cable Installation

This section describes installing cables in the cabinet. Use the procedure

for one of the following types of installation:

•Pedestal (Pad) Mount, Section 9.4.1 on page 4-28

•Pole Mount, Section 9.4.2 on page 4-32

•Wall Mount, Section 9.4.3 on page 4-33

•Roof Mount, Section 9.4.4 on page 4-34

•Site Expansion, Section 17 on page 4-64

Caution!

Ensure all site grounding is installed and functioning before installing

cables. Observe all local safety precautions and wear all appropriate

locally approved safety equipment during installation procedures.

9.4.1 Pedestal Mount Cable Installation

Caution!

When installing coaxial cable or cable conduit, follow the minimum

bending radius requirements for the type of cable being installed.

1. Using a tamper resistant wrench, remove the front panel from the

pedestal base so cables or conduit can be routed to the cabinet. See

Figure 4-13 on page 4-30

2. Route the antenna and T1(E1) conduit into the base of the cabinet.

See Figure 4-13 on page 4-30.

3. Route AC power and ground conduit into base of cabinet.

4. Separate the cables into groups according to cable type. Secure the

cables with tie-wraps until they are ready to be installed.

5. Route the antenna jumper cables into the base of the cabinet and

connect them to the antenna connectors on the bottom of the

earthing plate. See Figure 4-14 on page 4-31.

6. Bond and ground the T1(E1) drop wires according to local

practices before installing them into the cabinet.

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Installation

7. Route the T1(E1) cable through conduit into the base of the

cabinet. Connect cable to the T1(E1) Primary Surge Suppressor

located on the right-hand side of the cabinet. See Figure 4-15 on

page 4-32. Note that the connector block is grounded to the I/O

plate at the factory.

Note: The hex-nut activators on the T1(E1) Primary Surge

Suppressor block are colored white for tip wires and

orange for ring. The large ports under the activator

clock accommodate 18.5 to 20 AWG wire termination.

The small ports accommodate 22 to 24 AWG wire

termination.

Note: Wire stripping or staggering is not needed when using

the T1(E1) Primary Surge Suppressor block. The

Primary Surge Suppressor provides straight-through

access for wire terminations.

8. Terminate the wires on the connector block as follows:

a. Trim the ends of the wire. Split the drop leads approximately

two inches. Using a standard 216–type wrench, carefully back

off the activator screw until you feel a stop. The wrench will lift

up approximately 1/4–inch into the open position.

b. Insert the wire into the large or small port on the side of the

activator. Tighten the hex nut on the top of the activator until

the tensions stops. DO NOT OVERTIGHTEN.

c. If testing or if a talk pair is needed, insert test leads into the hex

nut on the appropriate activator.

d. To reinstall wires, trim the wire ends and split the drop wire

leads approximately two inches and terminate according to the

above procedure.

e. After wiring, keep all activators in the down position for good

housekeeping.

9. After all cables are installed, turn on the AC power.

10. Watch the LEDs on each board and that the unit is operating

properly. Consult the troubleshooting part of the Installation and

Maintenance manual for units that are malfunctioning.

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Installation

Antenna 3

Primary 2Primary 1

HOLE DIAMETERS

Primary 1 and 2

Antennas, T1 Line

Power

Cabinet Ground

35.05

28.70

12.70

Antenna 2

Antenna 1

Antenna 4

AC Power

DC Battery

Back-Up

T1 Line

Cabinet

Ground

Right Side

mm inches

1.38

1.13

.50

Figure 4-13. Pedestal Mount

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Installation

Antenna 4

Antenna 3

Antenna 2

Antenna 1

AC Power

External

Battery

T1/PCM

Primary 1

Primary 2

Note: Conduit openings in I/O plate fit 3/4" and 1"

liquid-tight flexible conduit.

Figure 4-14. Cabinet I/O Plate

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Installation

PCM (T1/E1) Primary Surge Suppressor

12345

PCM Secondary

Surge Suppressor

Air Filter

Access Panel

Subrack

Heater

Ground

Plate

Fans (4)

Subrack with

equipment

units Backplanes

AC/DC

Power

Battery

compartment

(2 batteries)

Figure 4-15. Cabinet Surge Suppressor

9.4.2 Pole Mount Cable Installation

1. Route the antenna cable and T1(E1) conduit into bottom of cabinet.

The T1(E1) conduit is terminated at the I/O plate.

2. Slide heat shrink tubing over cable connector and connect the

antenna jumpers to the antenna surge suppressors on I/O plate.

3. Apply heat to heat-shrink tubing to seal connector.

4. Route T1(E1) cables through conduit connect the cables to the

surge protector. Refer to Table 4-5 on page 4-33

5. After all cables are installed, turn on the AC power.

6. Watch the LEDs on each board and verify the unit is operating

properly. Consult the troubleshooting part of the Installation and

Maintenance manual for units that are malfunctioning.

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Installation

Table 4-5. T1 Input Connections to Primary Surge Suppressor

Terminal No. T1 Cable Pair No. Wire

1 (white) In 1 Tip

1 (orange) In 1Ring

2 (white) In 2Tip

2 (orange) In 2 Ring

3 (white) Out 1Tip

3 (orange) Out 1 Ring

4 (white) Out 2Tip

4 (orange Out 2Ring

5 (white) Not used

5 (orange) Not used

Table 4-6. T1 Output Connections to Primary Surge Suppressor

RJ45 Conn Pin No. T1 Cable Pair No. Wire

J1 5In 1 Tip

J1 4 In 1 Ring

J1 1In 2Tip

J1 2In 2Ring

J2 5Out 1Tip

J2 4Out 1Ring

J2 1 Out 2 Tip

J2 2Out 2Ring

9.4.3 Wall Mount Cable Installation

1. Route the antenna cable and T1(E1) conduit into bottom of cabinet.

The T1(E1) conduit is terminated at the I/O plate.

2. Slide heat shrink tubing over cable connector and connect the

antenna jumpers to the antenna surge suppressors on I/O plate.

3. Apply heat to heat-shrink tubing to seal connector.

4. Route T1(E1) cables through conduit connect the cables to the

surge protector.

5. After all cables are installed, turn on the AC power.

6. Watch the LEDs on each board and that the unit is operating

properly. Consult the troubleshooting part of the Installation and

Maintenance manual for units that are malfunctioning.

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Installation

9.4.4 Roof Mount Cable Installation

Cabling of the roof mounted cabinet depends on the type of mounting kit

being used. Any of the three mounting kits, pedestal, pole, or wall, may be

used for the roof mount. Based on which mounting kit used, follow the

cabling instructions for that kit.

10 Setting the Unit Switches

Before the RBS 884 Micro (1900 MHz) is powered up, the REMUX and

EMRPM switches must be set. This section describes the procedure for

setting the REMUX and EMRPM switches.

Prior to starting, review electrostatic discharge instructions in Section 3 on

page 4-5.

For information on removing the REMUX or EMRPM, refer to the

Hardware Replacement RBS 884 Micro (1900 MHz) part of this document.

The units are shown in Figure 4-16 on page 4-34.

EMRPM

Unit

PCM

Test

TLINK

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

Slot for Unit

Extractor Tool

REMUX

Unit

REMUX

Unit

NOTE: Before inserting Unit Extractor Tool,

remove extractor hole plug and set aside. Reinstall

plug after unit removal.

Figure 4-16. Cabinet Units for Switch Settings (Example with a Main Cabinet)

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Installation

10.1 Prerequisites and Tools

10.1.1 Prerequisites

The following site speciﬁc data for setting the switches on the units must be

available in the Conﬁguration Data in the Site Installation Documentation:

•PCM line impedance

•PCM primary line speciﬁcation (length or attenuation)

•PCM secondary line speciﬁcation (length or attenuation)

•PCM primary line code and frame mode

•PCM secondary line cascading

•Control Signaling Link (CLC) extraction time slot

•PCM jitter and wander limit

•Frequency

10.1.2 Tools

The tools shown in Table 4-7 on page 4-35 are required for setting the

switches on the units:

Table 4-7. Tools for setting the Unit Switches

Product Number Description

LYB 250 01/14 ESD Wrist Strap and Cable

LTT 601 82 From Torque Wrench set:

- Torque Wrench for torque 0.6 Nm

(to use with the Torx bit TX10

- Torx bit TX10

(for the unit screws)

LTD 117 02 and

LTD 117 12

Unit Extractor Tool (Handle + Button)

Small screwdriver, pen, or simular tool to set switches

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Installation

Torx Bit T10

Torque Wrench

Unit Screws

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

Figure 4-17. Torque Wrench with Torx TX8

10.2 REMUX Switch Settings

1. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

2. Use the torque wrench with the Torx TX10 to loosen the top and

bottom screws on the front of the REMUX unit.

Note: Do not touch any components or connector pins on

a circuit board.

3. Remove the REMUX unit from the cabinet using the extractor tool

as shown in Figure 4-16 on page 4-34. Save the extractor hole plug

and replace plug after installing the REMUX unit.

4. Locate the 8-pole dip switch at the top front of the REMUX unit.

5. Set the unit to the PCM line impedance by setting the switches as

shown in Figure 4-18 on page 4-37. The line impedance can be found

in the Conﬁguration Data in the Site Installation Documentation.

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Installation

12345678

Top

12345678

Front Line Impedance Switch Settings (1-8)

75 ohm (E1) 0111 1101

100 ohm (T1) 1011 1110

120 ohm (E1) 0000 0000

REMUX Boards

ROF 367 211/3

ROF 367 211/1

ROF 367 211/3

PCM Line Impedance

Note: The example shows the REMUX set for 120 ohm line impedance (E1)

Figure 4-18. Setting the PCM Line Impedance

6. Locate the 32-pole dip switch at the bottom of the REMUX unit.

Note: When a dip switch is in its lower position (with the

REMUX board oriented as shown in the following

ﬁgures), the value is always 0 (zero) regardless of

what is written on the switch.

7. Check with the Conﬁguration Data in the Site Installation

Documentation to determine whether the settings for the PCM

Primary line are decided by the length, attenuation, or impedance of

the line. Set the switches for the appropriate use as follows:

•If line length is used (T1 Short Haul), see Figure 4-19 on

page 4-38.

•If impedance is used (for E1 transmission, and T1 FCC

(Federal Communications Commission) part 68, option A),

see Figure 4-20 on page 4-38.

Note: For distances exceeding 40 meters, customer

supplied Channel Service Units (CSU) should be

used.

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Installation

PCM Primary Line Specification for T1 Short Haul (SH)

Top

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Front

1 0 1 1

0 to 40 meters => 1011

40 to 80 meters => 1100

80 to 120 meters => 1101

120 to 160 meters => 1110

160 to 200 meters => 1111

Line Length

(REMUX boards ROF 367 211/1, /3)

The example shows the REMUX set for a T1 Short Haul line

up to 40 meters in length, connected to PCM Primary.

Note:

Figure 4-19. Settings for the PCM Primary Line Speciﬁcation, T1 Short Haul

Note: The example shows the REMUX set for an E1 line with 120 ohm impedance, connected to PCM Prim.

1 0 0 1

Top

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Front

PCM Primary Line Specification for E1 and T1

75 ohm (E1) => 1000 (ROF 367 211/3)

120 ohm (E1) => 1001 (ROF 367 211/3)

100 ohm (T1 FCC part 68, opt A) => 1010 (ROF 367 211/1)

Line Impedance

Figure 4-20. Settings for the PCM Primary Line Speciﬁcation, E1 and T1

8. Check with the Conﬁguration Data in the Site Installation

Documentation to determine whether the settings for the PCM

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Installation

Secondary line are decided by the length, attenuation, or impedance

of the line. Set the switches for the appropriate use as follows:

•If line length is used (T1 Short Haul), see Figure 4-21 on

page 4-39.

•If impedance is used (for E1 transmission, and T1 FCC part

68, option A), see Figure 4-22 on page 4-40.

Note: For distances exceeding 40 meters, customer

supplied CSUs should be used.

1 0 1 1

Top

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Front

PCM Secondary Line Specification for T1 Short Haul (SH)

The example shows the REMUX set for a T1 Short Haul line

up to 40 meters in length, connectod to PCM Secondary.

Note:

0 to 40 meters => 1011

40 to 80 meters => 1100

80 to 120 meters => 1101

120 to 160 meters => 1110

160 to 200 meters => 1111

Line Length

(for REMUX boards

ROF 367 211/1, /3)

Figure 4-21. Settings for the PCM Secondary Line Speciﬁcation, T1 Short Haul

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Installation

Top

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Front

1 0 0 1

PCM Seconday Line Specification for E1 and T1

Note: The example shows the REMUX set for an E1 line with 120 ohm impedance, connected to PCM Secondary.

Line Impedance

75 ohm (E1)

120 ohm (E1)

100 ohm (T1 FCC part 68, opt A)

=> 1000 (ROF 367 211/3)

=> 1001 (ROF 367 211/3)

=> 1010 (ROF 367 211/1)

Figure 4-22. Settings for the PCM Secondary Line Speciﬁcation, E1 and T1

9. Set the PCM primary line code and frame mode, as shown in Figure

4-23 on page 4-40, in accordance with the Conﬁguration Data in the

Site Installation Documentation.

Top

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Front

PCM Primary Line Code and Frame Mode

The example shows the REMUX set for automatic adaptation to line code

and frame mode on the line connected to PCM Primary (T1 or E1).

Note:

= Alternate Mark Inversion (AMI)

and Super Frame

= Bit 8 Zero Substitute (B8ZS)

and Super Frame

= Alternate Mark Inversion (AMI)

and Extended Super Frame

= Bit 8 Zero Substitute (B8ZS)

and Extended Super Frame

= Automatic Adaptation to PCM

(X = don’t care)

= Double Frame (DF)

= Cyclic Redundancy Check

(CRC) Multi Frame

= Automatic Adaptation to PCM

(X = don’t care)

Figure 4-23. Setting for PCM Primary Line Code and Frame Mode

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Installation

10. Set the switch to enable or disable the PCM secondary line for

cascading, as shown in Figure 4-24 on page 4-41 in accordance with

the Conﬁguration Data in the Site Installation Documentation.

= Cascading enabled

= Cascading disabled

Top

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Front

PCM Secondary Line Cascading

Note: The example shows the REMUX set to enable the PCM Secondary line for cascading.

Figure 4-24. Enabling/Disabling the PCM Secondary Line for Cascading

11. For an E1 PCM line, select the time slot (TS) for Control signaling

Link (CLC) extraction, as shown in Figure 4-25 on page 4-42 in

accordance with the Conﬁguration Data in the Site Installation

Documentation.

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Installation

16 8

=TS 0

=TS 1

=TS 2

=TS 3

=TS 4

=TS 5

=TS 6

=TS 7

16 8

=TS 16

=TS 17

=TS 18

=TS 19

=TS 20

=TS 21

=TS 22

=TS 23

=TS 8

=TS 9

=TS 10

=TS 11

=TS 12

=TS 13

=TS 14

=TS 15

16 8

=TS 24

=TS 25

16 8

=TS 26

16 8

=TS 27

16 8

=TS 28

16 8

=TS 29

16 8

=TS 30

16 8

=TS 31

Dip switch values 0 - 31 = TS 0 - 31

Normal timeslot is TS 16

Top

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Front

Timeslot 16 (TS 16)

16 8

CLC Extraction Timeslot for E1

Note: The example shows the selection of timeslot 16 for CLC extraction (for an E1 line).

Figure 4-25. Setting the CLC Extraction Timeslot for E1

12. For a T1 PCM line, select the time slot (TS) for Control signaling

Link (CLC) extraction, as shown in Figure 4-26 on page 4-43, in

accordance with the Conﬁguration Data in the Site Installation

Documentation.

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Installation

16 8

=TS 1

=TS 2

=TS 3

=TS 4

=TS 5

=TS 6

=TS 7

=TS 8

=TS 17

=TS 18

=TS 19

=TS 20

=TS 21

=TS 22

=TS 23

16 8

=TS 24

=TS 9

=TS 10

=TS 11

=TS 12

=TS 13

=TS 14

=TS 15

=TS 16

16 8

Timeslot 9 (TS 9)

16 8

Top

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Front

Dip switch values 0 - 23 = TS 1 - 24

Normal timeslot is TS 9

CLC Extraction Timeslot for T1

Note: The example shows the selection of timeslot 9 for CLC extraction (for an T1 line).

Figure 4-26. Setting the CLC Extraction Timeslot for T1

13. Set the jitter and wander limit for the PCM line for 138 Unit

Intervals (UI), as shown in Figure 4-27 on page 4-43 in accordance

with the Conﬁguration Data in the Site Installation Documentation.

= J / W limit 138 Unit Intervals (UI)

= J / W limit 28 Unit Intervals (UI)

Top

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Front

PCM Jitter and Wander Limit

J/W = 138 UI

Figure 4-27. Setting the PCM Line Jitter and Wander Limit

14. Set the frequency of operation for 1900 MHz as shown in Figure

4-28 on page 4-44.

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Installation

= 1900 MHz

= 800 MHz

Top

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Front

Frequency Selection

1900 MHz

Figure 4-28. Setting the Frequency of Operation

15. Carefully slide the REMUX unit back into the cabinet following the

guides, and push the unit ﬁrmly into the backplane connector.

16. Use the torque wrench with the Torx bit TX10 to tighten the top and

bottom screws on the front.

When turning the torque wrench until it slides, the screw is

tightened with the torque 0.6 Nm.

10.3 EMRPM Switch Settings

1. Keep the ESD strap attached.

2. Use the torque wrench with the Torx bit TX10 to loosen the top and

bottom screws on the front of one of the EMRPM units.

Note: Do not touch any components or connector pins on

a circuit board.

3. Remove the EMRPM unit from the cabinet using the extractor tool.

Save the extractor hole plug and replace plug after installing the

EMRPM unit.

4. Locate the dip switch and set the EMRPM address, as shown in the

following ﬁgure, depending on which cabinet is being conﬁgured.

Set the address as follows:

•Main Cabinet, set the EMRPM unit address to 1.

•Primary Cabinet 1, set the address to 3.

•Primary Cabinet 2, set the address to 5.

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Installation

Main

Cabinet Primary 1

Cabinet Primary 2

Cabinet

Top

+= 5

Top

1= 1

Top

+= 3

Figure 4-29. EMRPM Address Setting

5. Carefully slide the EMRPM unit back into the cabinet following the

guides, and push the unit ﬁrmly into the backplane connector.

6. Use the torque wrench with the Torx bit TX10 to tighten the top and

bottom screws on the front.

7. Repeat the same steps for the other EMRPM unit.

11 External Cable Installation

This section describes the procedure for installing external cables for the

RBS 884 Micro (1900 MHz) cabinet.

Each cabinet arrives on site with internal cables pre-installed. These cables

are described in the Internal Cables appendix. All other cables must be

connected after the cabinets have been installed.

Information for optional cables and different site conﬁgurations is also

described in Section 17 on page 4-64.

Note: Cable routing depends on the number of sectors, number of

cabinets, and the number of antennas. Refer to the System

Description for additional information on RBS 884 cabinet

cabling. Also, the Conﬁguration Data section in the Site

Installation Documentation contains information about the

actual site, cabinets, and antenna systems.

To simplify cable installation and troubleshooting, external cables are

labeled with connection point information.

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Installation

Intercabinet cables are labeled at each end. External cables are labeled at

the cabinet end only.

An example of a label attached to an intercabinet cable is shown in Figure

4-30 on page 4-46.

Intercabinet cables are provided in cabling kits.

Main - REMUX - TLINK1

Aux1 - CONN - TL1

The label is folded here

around the cable tag

Cabinet Name Unit Name Connector Name

Connection Point at this

end of the cable

Connection Point at the other

end of the cable

Figure 4-30. Example of an Intercabinet Cable Label

11.1 Required Materials and Tools

11.1.1 Materials

The cabling kits used with the cabinets are shown in Table 4-8 on page

4-46.

Table 4-8. External Cabinet Cables

Product Number Description

NTM 201 1807 External Cabinet Cable Set

RPM 113 1443/2 ANP unit to TRX unit

TSR 952 144/3 ANP unit to Antenna I/O connector plate

Install the cables in the order they appear in the table enclosed with each

cable kit.

Note: In the ﬁgures in this section, the cables are drawn as much as

possible in the way they have to be routed in reality. For

instance, the cables must not cover any TRX.

11.1.2 Tools

The Torque Wrench set LTT 601 82 including the Torque Wrench (for

torque 0.6 Nm) with the SMA tool is all that is required.

Initially, hand-tighten all SMA connectors. Thereafter, fully tighten using

the torque wrench with the SMA tool, as shown in Figure 4-31 on page

4-47.

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Installation

Torque Wrench SMA Tool

SMA Connector

Figure 4-31. Using the Torque Wrench with the SMA Tool

Turn the torque wrench until it slides to tighten connector to 0.6 Nm.

11.2 Antenna Connections

See the Cable Way Drawing or the Situating Plan in the Site Installation

Documentation on where the cables are located.

The jumper cables or the feeders are labelled with the connector name (for

example ’ANT 1’). See the Antenna Cable Distribution Diagram in the

Site Installation Documentation for more information about the connection

to the cabinets.

11.3 ANP/RFTL Connections

11.3.1 Tools

The tools required for installation of ANP/RFTL units and cables are

shown in the Table 4-9 on page 4-47, Figure 4-32 on page 4-48, Figure

4-33 on page 4-49, and Figure 4-34 on page 4-49.

Table 4-9. Tools for ANP/RFTL Unit and Cable Installation

Description Product Number

ESD Wrist Strap and Cable LYB 250 01/14

Unit Extractor Tool (Handle and Button) LTD 117 02 and

LTD 117 14

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Installation

Table 4-9. Tools for ANP/RFTL Unit and Cable Installation (Continued)

Description Product Number

Torque Wrench set including:

- Torque Wrench for torque 0.6 Nm

(to use with the SMA tool and the torx bit TX10 or

TX8)

- Torx bit TX10 or TX8

(for circuit board screws)

- SMA tool

(for the coaxial cables)

LTT 601 82

ANP/RFTL

Figure 4-32. Unit Extractor Tool (extracting Blank Panel)

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Installation

Torx Bit T10

or T8

Torque Wrench

Unit Screws

ANP/RFTL

Power

Error

Status

DPX

ANT 1 DPX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Figure 4-33. Torque Wrench with Torx TX8

Torque Wrench SMA Tool

SMA Connector

Figure 4-34. Torque Wrench with SMA Tool

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Installation

11.3.2 Installation procedure

1. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

In Section 3 on page 4-5 there is more information about ESD.

2. Carefully slide the ANP/RFTL unit into the cabinet following the

guides. Push the unit ﬁrmly into the backplane connector.

3. Use the torque wrench with the Torx bit TX10 to tighten the

screws on the front.

Turn the torque wrench until it slides to tighten screws to 0.6 Nm.

4. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in the Maintenance part for detection of units suspected

to be faulty.

5. Connect the four ANP to TRX cables (RPM 113 1443/2) from the

“TX Out” connector on the TRX unit to the appropriate TX IN

connector on the ANP/RFTL unit. See Figure 4-35 on page 4-51

for the location of the connectors.

6. The ANP/RFTL unit has cable connections for two or four antennas

depending on the type of unit installed. Figure 4-35 on page 4-51

illustrates two antennas and Figure 4-36 on page 4-52 illustrates

four antennas. The cables are listed in Table 4-10 on page 4-52.

The cable numbers for either a two-antenna or four-antenna

conﬁguration are the same. Install the antenna cables as follows:

– Connect the ﬁrst cable to the RX/TX ANT 1 connector on the

front of the ANP/RFTL unit. Route the cable vertically down

into the horizontal cable tray below the subrack. Route the cable

to the right along the cable tray. Leaving the horizontal cable

tray, route the cable vertically down the right inside cabinet wall

into the vertical cable tray. From the vertical cable tray, route

the cable to the I/O connector plate at the base of the cabinet.

Connect the type N coaxial connector to the Antenna 1

connector and secure it by rotating the locking ring clockwise.

– Connect the second cable to the RX/TX ANT 2 connector on

the front of the ANP/RFTL unit. Route the cable the same as

the antenna 1 cable and connect in to the Antenna 2 connector

on the I/O plate.

– If a four antenna ANP/RFTL unit is installed, route antennas

three and four in the same way.

When attaching the cable connector to the connector on the unit,

hand-tighten as much as possible. Thereafter, fully tighten using

the torque wrench with the SMA tool.

Turn the torque wrench until it slides to tighten the connector to

0.6 Nm.

7. Report to the MSC.

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Installation

The cabinets shown in the following ﬁgures are fully conﬁgured Main

Cabinets. The cabling is the same for Primary Cabinets (a Primary Cabinet

has a blank 12M and a CONN unit instead of the REMUX and the STRM

units).

ANP/RFTL

Power

Error

Status

DPX

ANT 1 DPX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Note: The TRX board in position 6 is used for DVER

I/O Connector Plate

Pos. 6

Antenna 2

Antenna 1

Cable Tray

Figure 4-35. Antenna Cable Connections for a Cabinet Using Two Antennas

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Installation

Note: The TRX board in position 6 is used for DVER

ANP/RFTL

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

DPX

ANT 1 DPX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

DPX

ANT 3 DPX

ANT 4

Pos. 6

I/O Connector Plate

Antenna 4

Antenna 3

Antenna 2

Antenna 1

Cable Tray

Figure 4-36. Antenna Cable Connections for a Cabinet Using Four Antennas

Table 4-10. Cables for Two and Four Antenna Conﬁgurations

Cable Number Connector A Connector B

RPM 113 1443/2 TRX Unit ANP/RFTL Unit

TSR 952 144/3 ANP/RFTL Unit Antenna I/O Plate

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Installation

12 Site Inventory

To facilitate equipment replacement in the RBS cabinets, perform a site

inventory to identify all units delivered, including revision states. This

information is recorded in the Plant Speciﬁcation found in the Site

Installation Documentation.

12.1 Prerequisites

12.1.1 Prerequisites

Complete the following activities before the site inventory is performed:

•Cabinet mounting

•Grounding

•Setting of switches

•Cable installation

12.2 Site Inventory Procedure

Site Information

1. Record the name of the site, date, and other relevant information for

each cabinet in the Site Installation Documentation,Plant

Speciﬁcation, or follow your local procedure.

RBS Cabinet Units

2. Locate the product labels on all of the units in the cabinets. Each

unit has a product label stuck to its front panel, as shown in Figure

4-37 on page 4-53, indicating its product number and revision state.

A53047P963 95w03 A53

P/ KRC 121 10/4 R1A

Product

Number R-State

Figure 4-37. Unit Product Label

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Installation

3. Record the product number, serial number, and R-state for each unit

in each of the cabinets in the Plant Speciﬁcation (or any other site

inventory list). See Table 4-11 on page 4-54.

Table 4-11. RBS 884 Micro (1900 MHz) Units

Product Number Unit

HRB 104 13 1900 Micro Radio Base Station

ROF 137 2775 ECU Unit

ROA 119 3157/7 ALM

ROF 367 211/1 REMUX - (T1) 24 Channel

ROF 367 211/3 REMUX - (E1) 32 Channel

ROF 367 212/1 CONN

ROF 367 207/1 STRM

ROF 367 210/1 EMRPM

KRC 121 106/1 TRX

KRF 102 115/1 ANP/RFTL (2) Two Antenna (A+D)

KRF 102 115/2 ANP/RFTL (4) Four Antenna (A+D)

KRF 102 115/3 ANP/RFTL (2) Two Antenna (D+B+E)

KRF 102 115/4 ANP/RFTL (4) Four Antenna (D+B+E)

KRF 102 115/5 ANP/RFTL (2) Two Antenna (E+F+C)

KRF 102 115/6 ANP/RFTL (4) Four Antenna (E+F+C)

ROF 367 213/1 Dummy EMRPM

ROF 367 216/1 Dummy REMUX

ROF 367 217 Dummy TRX

BKV 301 457 Fan

13 Equipment Power Up

This section describes the procedure for applying AC power to each of the

RBS 884 Micro (1900 MHz) cabinets.

Note: Read the Safety Considerations (Section 2 on page 4-3) before

starting the power up procedure.

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13.1 Prerequisites and Test Equipment

13.1.1 Prerequisites

The following activities must be completed before power can be applied to

the equipment cabinets:

•Installation of all cabinets

•Grounding of all cabinets

•Setting of switches in all cabinets

•Cabling of all cabinets

•AC voltage available on site, connected to the cabinets

13.1.2 Tools and Test Equipment

The following equipment is required for completing the electrical power

installation and for power-up testing:

•Tools for connecting the AC power cable to a line power access

point, if this is the local procedure

•Multimeter for checking supplied line voltage and polarity for DC

power.

13.2 Power-Up Procedure

AC Power Connection

1. Verify the AC CONNECTED lamp on the front panel of the AC/DC

box is ON.

2. Position the circuit breakers on the front panel of the AC/DC box to

ON in the following sequence. See Figure 4-38 on page 4-56 for the

location of the circuit breakers.

•Main

•PSU

•ECU

•FANS

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Installation

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 4-38. Cabinet Circuit Breakers

3. After the above circuit breakers are on, the fans will start up fast and

drop back to a normal operating speed. Observe that for about 20

seconds after power-up, the red Error LEDs on all units in the

subrack ﬂash at 3 Hz as the units perform internal self-tests.

4. Position the remainder of the circuit breakers to ON as follows:

•BAT

•MAIN HTR

•BAT HTR

•CSU (if customer-supplied CSU equipment is installed)

Note: Do not turn on the GFI OUTLET circuit breaker

unless performing maintenance on the

equipment.

Power-Up Test

5. After 20 seconds, verify that all fans at the top of the cabinet are

running. If not, refer to the troubleshooting procedure for detection

of units suspected to be faulty.

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6. Check that the green Power Light Emitting Diode (LED) on each of

the units in the cabinet is on (see Figure 4-39 on page 4-57).

TRX

Power

Error

Status

REMUX

Power

Error

Status 1

Status 2

Power

Error

Status 1

EMRPM

Status 2

ALM

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

ANP/RFTL

Power

Error

Status

Power

Error

Status 1

Status 2

STRM

PSU

AC Main

DC Output

Current Limit

Main Cabinet

Primary Cabinet

Power

Error

Status 2

Status 1

CONN

TRX

Power

Error

Status

Power

Error

Status 1

EMRPM

Status 2

ALM

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

ANP/RFTL

Power

Error

Status

PSU

AC Main

DC Output

Current Limit

Figure 4-39. The Green Power LEDs and Red Error LEDs

7. If any of the green Power LEDs are off, replace the unit in

accordance with the Unit Replacement section in the Maintenance

part.

8. Check that none of the red Error LEDs is on (see Figure 4-39 on

page 4-57).

9. If any of the red Error LEDs are on or ﬂashing continuously, replace

the unit in accordance with the Unit Replacement section in the

Maintenance part.

10. Repeat Step 1 on page 4-55 to Step 9 on page 4-57 for each cabinet.

11. Report to the MSC to re-activate the system.

14 Cold Start-up

During an AC power-on event, the ECU checks the temperature of the

equipment before allowing DC power to be distributed to the rest of the

equipment. The ECU prohibits the equipment from operating when its

temperature is outside the safe function limits (-5 C to +50 C). The cold-

start mode is used when AC is ﬁrst applied and the Subrack Thermal Mass

temperature is below the subrack inlet temperature limit of 10 C.

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Installation

If a cold start-up condition exists, heaters are activated to warm the cabinet

temperature. The heater is controlled by a variable voltage from the ECU

(5Vdc to 12Vdc) to provide 80 to 1600 watts of variable heat.

During the warm-up period, the fans operate at 20% of full ﬂow circulating

the heated air trough the cabinet. When the Subrack Thermal Mass reaches

10 C, the ECU applies power the Subrack Power Bus and the CSU.

The warm-up time from AC power-on until the equipment reaches

operational temperature varies with the initial equipment temperature. At

an initial equipment temperature of -35 C, the warm-up can take

approximately 55 minutes.

The ECU does not generate any alarms to the MSC during a cold start-up.

15 Completing the Installation

This section describes the general housekeeping duties required to

complete the installation.

15.1 Prerequisites and Tools

15.1.1 Prerequisites

The Installation Completion Procedure can be completed only after the

equipment has been successfully powered up in accordance with Section

13 on page 4-54.

15.1.2 Tools

A tie-wrap tool is required to complete the Installation Completion

Procedure.

15.2 Installation Completion Procedure

General housekeeping

1. Secure cables in cable trays or with tie-wraps.

2. Trim the ends of the tie-wraps to within 1/8” of the wrap.

3. Verify that all activators on the Primary T1/E1 Surge Protector are in

the down position.

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Installation

Recycle Packing Material

4. Recycle the packing materials in accordance with the local

regulations.

16 LED Indications

Active devices are equipped with Light Emitting Diodes (LEDs) to

indicate the status of the device.

In general:

•Green LEDs indicate the power is on.

•Red LEDs indicate an error has occurred (a red LED that is on,

indicates that an unspeciﬁed error has occurred in that unit).

•Yellow LEDs show operational status.

✚

Tx out

POWER

ERROR

STATUS

✚

TRX

1900

POWER

ERROR

STATUS

Figure 4-40. LED on a TRX

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Installation

16.1 PSU LEDs

In the RBS 884 Micro (1900 MHz) PSU unit, four LED indicators are

provided for the following:

•PSU

•AC Mains

•DC Output

•Current Limit

Note: During battery charging, the Current Limit LED will be on.

This is a normal indication.

16.2 TRX LEDs

In the RBS 884 Micro (1900 MHz) TRX units, three LED indicators are

provided for the following:

•Red Error LED

– ON: Indicates an error or fault with the TRX

– FLASH 3 Hz: Power-up test

– FLASH: Communication with EMRPM is lost

•Yellow Status LED

– OFF: No PCM signal present on the primary interface

– FLASHING: Indicates TRX(s) are on (33% duty cycle =1

timeslot, 66% duty cycle=2 timeslot, 99% duty cycle=3 timeslot).

•Green Power LED

– ON: Indicates the TRX is powered on

–

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16.3 REMUX LEDs

In the RBS 884 Micro 1900 REMUX unit, four LED indicators are

provided for the following:

•Red Error LED

– ON: Indicates an error or fault with the TRX

– FLASH 3 Hz: Power-up test

– FLASH: Communication with EMRPM/S is lost

•Yellow Status LEDs

– OFF: No PCM signal present on the primary interface

– FLASH 3 Hz: Primary PCM interface is not operable

– FLASH 15 Hz:Primary PCM interface is operable

•Green Power LED

– ON: Indicates the REMUX is powered on

–

16.4 ANP (RFTL) LEDs

In the RBS 884 Micro (1900 MHz) ANP (RFTL) unit, three LED

indicators are provided for the following:

•Red Error LED

– ON: Indicates an error or fault with the ANP (RFTL)

–

•Yellow Status LED

– OFF: No PCM signal present on the primary interface

–

•Green Power LED

– ON: Indicates the ANP (RFTL) is powered

–

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Installation

16.5 STRM LEDs

In the RBS 884 Micro (1900 MHz) STRM unit, two LED indicators are

provided for the following:

•Yellow Status LED

– FLASHING 8 Hz: Blocked

– FLASHING 1 Hz: Deblocked

– FLASHING Two blinks-pause-two blinks: STC communication

not working

•Green Power LED

– ON: Indicates the STRM is powered on

–

16.6 ALM LEDs

In the RBS 884 Micro (1900 MHz) ALM unit, three LED indicators are

provided for the following:

•Red Error LED

– ON: Indicates an error or fault with the TRX

– FLASH 3 Hz: Power-up test

– FLASH: Communication with EMRPM/S is lost

•Yellow Status LED

– OFF: No PCM signal present on the primary interface

–

•Green Power LED

– ON: Indicates the TRX is powered on

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16.7 EMRPM LEDs

In the RBS 884 Micro (1900 MHz) EMRPM unit, four LED indicators are

provided for the following:

•Red Error LED

– ON: Indicates an error or fault with the EMRPM

–

•Yellow Status 1 LED

– OFF: Turned off by APZ at EMRPM reset

– ON: Turned on when EMRPM is started

– FLASHING: Starts to blink when trafﬁc is pending and is set to

ON when there is no trafﬁc

•Yellow Status 2 LED

– OFF: Turned off by APZ at EMRPM reset Turned off at restart

and when all devices are blocked

– ON: Turned on when at least one device is deblocked but all

individuals are blocked

– FLASHING: When there are at least one deblocked individual

•Green Power LED

– ON: Indicates the EMRPM is powered on

16.8 ECU LEDs

The ECU in the RBS 884 Micro (1900 MHz) provides interfaces to the

following cabinet equipment:

•Main DC Power Bus Disconnect Relay

•Temperature Sensors

•PSU

•Main Heater

•ALM

Two seven-segment displays on the front of the ECU provide error codes

to indicate equipment failure alarms and ALM status (see Table 4-12 on

page 4-63).

Table 4-12. ECU Error Codes

Error Code Description

A0 Temperature shutdown alarm

A1 Single fan alarm

A2 Multiple fan alarm

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Installation

Table 4-12. ECU Error Codes (Continued)

A3 Main heater alarm

A4 PSU failure alarm

A5 Battery temperature alarm

F1 Fan #1 failure

F2 Fan #2 failure

F3 Fan #3 failure

F4 Fan #4 failure

FF Fan test

S1 Ambient temperature Sensor failure

S2 Inlet temperature Sensor failure

S3 Subrack Temperature Sensor failure

S4 Exhaust Temperature Sensor failure

S5 Battery Compartment Temperature Sensor failure

S6 Inlet 2 (backup) Temperature Sensor failure

C0 Cold start

C1 Cold start timeout > 30 minutes

17 Site Expansion

A RBS 884 Micro (1900 MHz) can be expanded by adding the following:

•TRXs to one or more of the cabinets (Section 17.1 on page 4-65).

•One or two Primary Cabinets (Section 17.2 on page 4-69).

After completing the site expansion, ﬁll in the Site Inventory list in the Site

Installation Documentation: note the date and the R-state of the new units.

This section also provides additional cabling information for the following

conﬁgurations:

•One-sector sites, one cabinet with two antennas

•One-sector sites, one cabinet with four antennas

•Two-sector sites, two cabinets with two antennas per cabinet

•Two-sector sites, two cabinets with four antennas per cabinet

•Three-sector sites, three cabinets with two antennas per cabinet

•Three-sector sites, three cabinets with four antennas per cabinet

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Installation

17.1 Adding TRX Boards

Replacing the base station’s RMUs with TRXs increases the call handling

capacity in that particular sector.

Note: Other options for single sector site expansion are not supported

by the RBS 884 Micro (1900 MHz).

17.1.1 Tools

The tools required for adding TRXs to a cabinet are shown in Table 4-13

on page 4-65, Figure 4-41 on page 4-65, Figure 4-42 on page 4-66, and

Figure 4-43 on page 4-66.

Table 4-13. Tools for Adding TRXs

Description Product Number

ESD Wrist Strap and Cable LYB 250 01/14

Torque Wrench set including:

- Torque Wrench for torque 0.6 Nm

(to use with the SMA tool and the torx bit TX10

- Torx bit TX10

(for circuit board screws)

- SMA tool

(for the coaxial cables)

LTT 601 82

Unit Extractor Tool (Handle and Button) LTD 117 02 and

LTD 117 14

RMU

Figure 4-41. Unit Extractor Tool (extracting an RMU)

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Installation

Torx Bit T10

Torque Wrench

Unit Screws

Power

Error

Status

Tx out

TRX

Figure 4-42. Torque Wrench with Torx TX10

Torque Wrench SMA Tool

SMA Connector

Figure 4-43. Torque Wrench with SMA Tool

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Installation

17.1.2 TRX Positions

Refer to Figure 4-44 on page 4-67 for TRX positions. TRXs are added to

the cabinet in the following positions.

•3rd TRX in slot 4

•4th TRX in slot 5

12 3 54786 9 11 12 13

ANP/RFTL

Power

Error

Status

DPX

ANT 1 DPX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Figure 4-44. Unit Positions

17.1.3 Installation Procedure

1. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

In Section 3 on page 4-5 there is more information about ESD.

2. Remove the ﬁrst RMU (dummy TRX).

Use the torque wrench with the Torx bit TX10 to loosen the

screws, and the unit extractor tool to pull the blank panel out.

3. Carefully slide the TRX into the cabinet following the guides. Push

the it ﬁrmly into the backplane connector.

4. Use the torque wrench with the Torx bit TX10 to tighten the

screws on the front.

Turn the torque wrench until it slides to tighten screws to 0.6 Nm.

5. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in the Maintenance part for detection of units suspected

to be faulty.

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Installation

6. The cables are installed as shown in Figure 4-45 on page 4-69.

Choose the appropriate ﬁgure (depending on the number of

antennas connected to the cabinet).

When attaching the cable connector to the connector on the unit,

hand-tighten as much as possible. Thereafter, fully tighten using

the torque wrench with the SMA tool.

Turn the torque wrench until it slides to tighten connector to 0.6

Nm.

7. Follow the same procedure for all other TRXs to be installed.

8. Report to the MSC.

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Installation

Note: The TRX board in position 6 is used for DVER

Cabinets illustrated are Main Cabinets, but the cabling is the same for Primary Cabinets.

Cabinet using Two Antennas

Cabinet using Four Antennas

ANP/RFTL

Power

Error

Status

DPX

ANT 1 DPX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

Pos. 6

ANP/RFTL

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

DPX

ANT 1 DPX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

DPX

ANT 3 DPX

ANT 4

To antenna terminals

on I/O connector plate

Pos. 6

Figure 4-45. TRX Cable Connections for Cabinets with Antennas

17.2 Adding Cabinets

A radio base station is expanded to a two-sector site by adding a Primary

cabinet to the Main cabinet. The radio base station is expanded to a three-

sector site by adding an additional Primary cabinet. Two or three cabinets

that occupy the same site location and serve separate sectors are referred to

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Installation

as collocated cabinets. Collocated cabinets are connected together with the

following cables:

•EMRPM Bus (EMRPB). The EMRPB cables are daisy chained from

the Main cabinet to the Primary 1 cabinet and then to the Primary 2

cabinet.

•TLINKS. Two TLINKS are run directly from the Main cabinet to

each of the Primary cabinets.

•Air Frame Synchronization (AFS). The AFS cable is daisy chained

from the Main cabinet to the Primary 1 cabinet and then to the

Primary 2 cabinet.

These cables are run in liquid tight ﬂexible conduit from the ﬂoor of one

cabinet to the ﬂoor of the next cabinet. The Main and Primary cabinets

have two 1 3/8 inch (33 mm) diameter knock-outs for 1 inch (25 mm)

diameter conduit. Both cabinet cable entries are located on the bottom

surface of the cabinet in the front right corner.

Note: All cables routed into and through the pedestal mounting base

should be encased in liquid tight ﬂexible conduit. Do not

terminate the liquid tight ﬂexible conduit at the pedestal base

knock-outs.

A diagram of cable routing for collocated cabinets is shown in Figure 4-46

on page 4-71.

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Installation

MAIN

CABINET

PRIMARY

CABINET 1

PRIMARY

CABINET 2

RX/TX Antenna

TX Antenna

TW/BSTI

Alarms

AC Power

External Battery

RX/TX Antenna

TX Antenna

TW/BSTI

Alarms

AC Power

External Battery

RX/TX Antenna

TX Antenna

TW/BSTI

Alarms

AC Power

External Battery

PCM to/from MSC

PCM to/from other site

AFS

Figure 4-46. Cable Routing for Collocated Cabinets

Use the Extension Cable Set (NTM 201 1807) for each collocated cabinet.

The Extension Cable Set is customer assembled. The cable set contains

the following:

•Cable (six meters)

•Two Insulation Displacement Connection (IDC) connectors

•Two IDC connector backshells

•Connector tool (for seating wires)

•

The EMRPB cable transfers control data between the STRM in the Main

cabinet and the CONN in the Primary cabinet. Refer to Table 4-14 on

page 4-72 for cable connector assembly:

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-71

Installation

Table 4-14. Extension Cable Connector Signals and Pin Connections

Connector A

(Pin No.) Signal Connector B

(Pin No.)

1CLKM+ (Transmit clock from STRM) 1

2 DATAM+ (Transmit data from STRM) 2

DATAM+ (Transmit data from

STRM)BLO+ (Blocking Signal from

STRM)

4BSB+ (Bus standby signal from STRM) 4

5CLKS+ (Receive clock to STRM) 5

6 DATAS+ (Receive Data to STRM) 6

7Not Connected 7

8GND 8

9 CLKM- (Transmit clock from STRM) 9

10 DATAM- (Transmit data from STRM) 10

11 DATAM- (Transmit data from STRM) 11

12 BSB- (Bus standby signal from STRM) 12

13 CLKS- (Receive clock to STRM) 13

14 DATAS- (Receive Data to STRM) 14

15 Not Connected 15

NOTE: To ensure adequate shielding, clamp the cable braid and shield between

backshell halves during assembly.

17.3 One-Sector Sites

Before you begin the installation, attach the ESD strap to your wrist and

connect the free end of the strap cable to an appropriate ground conductor

in the cabinet.

The conﬁgurations with one cabinet have internal cables only. Figure 4-47

on page 4-73 and Figure 4-48 on page 4-73 are shown here only as

information to the reader. The cabinets are shown as fully conﬁgured.

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Installation

17.3.1 One-Sector Sites, One Cabinet, Two Antennas

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

Note: The TRX board in position 6 is used for DVER

Pos. 6

Figure 4-47. One-Sector Site, One Cabinet, Two Antennas

17.3.2 One-Sector Sites, One Cabinet, Four Antennas

Note: The TRX board in position 6 is used for DVER

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

Pos. 6

To antenna terminals

on I/O connector plate

Figure 4-48. One-Sector Site, One Cabinet, Four Antennas

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-73

Installation

17.4 Two-Sector Sites

Before you begin the installation, attach the ESD strap to your wrist and

connect the free end of the strap cable to an appropriate ground conductor

in the cabinet.

Note: Cables are routed between cabinets using 1” liquid-tight

ﬂexible conduit. Conduit is run from the ﬂoor of the Main

cabinet to the ﬂoor of the Primary cabinet.

Note: Prior to installing the external EMRP bus (EMRPB) cable,

remove the backshell from the cable connector. Fold the

connector inline with the cable. See Figure 4-49 on page 4-74.

Wrap the connector with tape and pull through the conduit.

After the cable is pulled into position, remove the tape and

reassemble backshell.

Wrap with tape to protect connector and wires.

Figure 4-49. Cable Connector with Backshell Removed

17.4.1 Two-Sector Site, Two Cabinets, Two Antennas

Use the following steps to cable the Main and Primary cabinets in a two-

sector site using two antennas. Use the cables in the Extension Cable Set

(NTM 201 1807). See Figure 4-50 on page 4-75 for placement of cables.

1. Connect a cable from the AFS OUT connector on the REMUX

board in the Main cabinet to the External AFS IN connector on the

CONN board in the Primary cabinet.

2. Connect a cable from the TLINK 1 Interface connector on the

REMUX board in the Main cabinet to the TLINK 1 Interface

connector on the CONN board in the Primary cabinet.

3. Connect a cable from the EMRPB Interface connector on the

STRM board in the Main cabinet to the top EMRPB connector on

the CONN board in the Primary cabinet.

4. Insert a termination plug (RVN991200012) in the bottom EMRPB

Interface connector on the CONN board.

4-74 1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Installation

Note: The TRX board in position 6 is used for DVER

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

ANP/RFTL

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Pos. 6

Terminator

Main

Cabinet

Primary

Cabinet

EMRPB

AFS

TLINK

Figure 4-50. Two-Sector Site, Two Cabinets, Two Antennas

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-75

Installation

17.4.2 Two-Sector Site, Two Cabinets, Four Antennas

Use the following steps to cable the Main and Primary cabinets in a two-

sector site using four antennas. Use the cables in the Extension Cable Set

(NTM 201 1807). See Figure 4-51 on page 4-77 for placement of cables.

1. Connect a cable from the TLINK 1 Interface connector on the

REMUX board in the Main cabinet to the TLINK 1 Interface

connector on the CONN board in the Primary cabinet.

2. Connect a cable from the External AFS OUT connector on the

REMUX board in the Main cabinet to the External AFS IN

connector on the CONN board in the Primary cabinet.

3. Connect a cable from the EMRPB Interface connector on the

STRM board in the Main cabinet to the top EMRPB connector on

the CONN board in the Primary cabinet.

4. Insert a termination plug (RVN991200012) in the bottom EMRPB

Interface connector on the CONN board.

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Installation

Note: The TRX board in position 6 is used for DVER

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

To antenna terminals

on I/O connector plate

Pos. 6

Power

Error

Status

Tx out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Pos. 6

Terminator

EMRPB

AFS

TLINK

Main

Cabinet

Primary

Cabinet

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

Figure 4-51. Two-Sector Site, Two Cabinets, Four Antennas

17.5 Three Sector Sites

Before you begin the installation, attach the ESD strap to your wrist and

connect the free end of the strap cable to an appropriate ground conductor

in the cabinet.

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-77

Installation

Note: Cables are routed between cabinets using 1” liquid-tight

ﬂexible conduit. Conduit is run from the ﬂoor of the Main

cabinet to the ﬂoor of the Primary cabinets.

Note: Prior to installing the external EMRPMB cable, remove the

backshell from the cable connector. Fold the connector inline

with the cable. See Figure 4-49 on page 4-741. Wrap the

connector with tape and pull through the conduit. After the

cable is pulled into position, remove the tape and reassemble

backshell.

Wrap with tape to protect connector and wires.

Figure 4-52. Cable Connector with Backshell Removed

17.5.1 Three-Sector Site, each Cabinet has Two Antennas

Use the following steps to cable the Main, Primary 1, and Primary 2

cabinets in a three-sector site using two antennas. Use the cables in the

Extension Cable Set (NTM 201 1807). See Figure 4-53 on page 4-80 for

placement of cables.

1. Connect a cable from the TLINK 1 Interface connector on the

REMUX board in the Main cabinet to the TLINK 1 Interface

connector on the CONN board in the Primary 1 cabinet.

2. Connect a cable from the TLINK 2 Interface connector on the

REMUX board in the Main cabinet to the TLINK 1 Interface

connector on the CONN board in the Primary 2 cabinet.

3. Connect a cable from the External AFS OUT connector on the

REMUX board in the Main cabinet to the External AFS IN

connector on the CONN board in the Primary 1 cabinet.

4. Connect a cable from the External AFS OUT connector on the

CONN board in the Primary 1 cabinet to the External AFS IN

connector on the CONN board in the Primary 2 cabinet.

5. Connect a cable from the EMRPB Interface connector on the

STRM board in the Main cabinet to the top EMRPB connector on

the CONN board in the Primary 1 cabinet.

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Installation

6. Connect a cable from the bottom EMRPB Interface connector on

the CONN board in the Primary 1 cabinet to the top EMRPB

connector on the CONN board in the Primary 2 cabinet.

7. Insert a termination plug (RVN991200012) in the bottom EMRPB

Interface connector on the CONN board in the Primary 2 cabinet.

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-79

Installation

Note: The TRX board in position 6 is used for DVER

Main

Cabinet

Primary 1

Cabinet

Primary 2

Cabinet

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Pos. 6

Terminator

EMRPB

AFS

TLINK

Figure 4-53. Three-Sector Site, each Cabinet has Two Antennas

4-80 1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Installation

17.5.2 Three-Sector Site, each Cabinet has Four Antennas

Use the following steps to cable the Main, Primary 1, and Primary 2

cabinets in a three-sector site using four antennas. Use the cables in the

Extension Cable Set (NTM 201 1807). See Figure 4-54 on page 4-82 for

placement of cables.

1. Connect a cable from the TLINK 1 Interface connector on the

REMUX board in the Main cabinet to the TLINK 1 Interface

connector on the CONN board in the Primary 1 cabinet.

2. Connect a cable from the TLINK 2 Interface connector on the

REMUX board in the Main cabinet to the TLINK 1 Interface

connector on the CONN board in the Primary 2 cabinet.

3. Connect a cable from the External AFS OUT connector on the

REMUX board in the Main cabinet to the External AFS IN

connector on the CONN board in the Primary 1 cabinet.

4. Connect a cable from the External AFS OUT connector on the

CONN board in the Primary 1 cabinet to the External AFS IN

connector on the CONN board in the Primary 2 cabinet.

5. Connect a cable from the EMRPB Interface connector on the

STRM board in the Main cabinet to the top EMRPB connector on

the CONN board in the Primary 1 cabinet.

6. Connect a cable from the bottom EMRPB Interface connector on

the CONN board in the Primary 1 cabinet to the top EMRPB

connector on the CONN board in the Primary 2 cabinet.

7. Insert a termination plug (RVN991200012) in the bottom EMRPB

Interface connector on the CONN board in the Primary 2 cabinet.

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-81

Installation

Note: The TRX board in position 6 is used for DVER

Main Cabinet

Primary 1

Cabinet

Primary 2

Cabinet

EMRPB

AFS

TLINK

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

To antenna terminals

on I/O connector plate

Power

Error

Status

Tx out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

RX/TX

ANT 3 RX/TX

ANT 4

Power

Error

Status

Tx out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

RX/TX

ANT 3 RX/TX

ANT 4

Pos. 6

Terminator

Figure 4-54. Three-Sector Site, each Cabinet has Four Antennas

4-82 1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Installation

18 RBS 884 Micro (1900 MHz) Cabinet Repainting

This section provides instructions for repainting RBS 884 Micro (1900

MHz) cabinets. The instructions are intended as general recommendations

only and may not be suitable in all applications.

18.1 Required Materials and Tools

18.1.1 Materials

Prior to repainting the cabinet, obtain all materials listed in Table 4-15 on

page 4-83

Table 4-15. Cabinet Repainting Materials

Part Number Description

Refer to Paint

Manufacturer

Two-component polyurethane coating (paint chip

required for color matching)

N/A 80 grit (or ﬁner) Sandpaper (for orbital sander)

N/A 120 grit (or ﬁner) Sandpaper (for ﬁnish sanding)

N/A Tack Cloth

N/A Masking Tape

18.1.2 Tools

Prior to repainting the cabinet, obtain all tools listed in Table 4-16 on page

4-83

Table 4-16. Cabinet Repainting Tools

Part Number Description

N/A Orbital Sander

N/A Paint Spraying Equipment

N/A Sanding Blocks (as required)

18.2 Cabinet Surface Preparation

Prior to repainting the RBS 884 Micro (1900 MHz) cabinet, prepare the

cabinet surface as outlined in the following steps:

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-83

Installation

DANGER!

Paint, paint dust, and paint reﬁnishing chemicals can be hazardous to your

health and result in injury or damage to equipment. Do not breathe paint

fumes or paint dust. Wear protective breathing equipment and work only

in well ventilated areas. Follow all local safety practices.

Caution!

Sanding the surface of the RBS 884 Micro (1900 MHz) cabinet may result

in reduced corrosion resistance. Also, use of a darker paint color will

degrade the thermal performance of the cabinet.

1. Using an orbital sander with 80 grit or ﬁner sandpaper, lightly sand

all surfaces to be painted.

2. Blow off any excess sanding dust with compressed air.

3. Using a tack cloth, wipe down all surfaces.

4. If scratches or imperfections are visible in the surface, lightly sand

surfaces again using 120 grit or ﬁner sandpaper.

Caution!

To ensure proper paint adhesion, all paint dust and any other looses

material must be removed from the cabinet surface.

Using a tack cloth, wipe down all surfaces.

6. Mask all areas that are not to be painted, including hinges and door

hardware.

18.3 Cabinet Painting

To apply the primer and ﬁnish paint to the cabinet, perform the following

steps:

Applying Primer Paint to Cabinet

1. Using appropriate paint spraying equipment, apply primer to all areas

to be painted.

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Installation

2. Allow primer to dry for a minimum of 30 minutes.

Note: Paint drying times vary according to environmental

conditions such as temperature and humidity. Refer

to the paint manufacturer’s speciﬁcations for drying

times.

3. When primer is dry, feather sand the edges of the primed areas.

4. Wipe all surfaces clean with a tack cloth. Ensure surface is free of

all dust and debris.

Applying Finish Paint to Cabinet

5. Prepare ﬁnish paint as speciﬁed by the paint manufacturer.

Note: The ﬁnish paint is a two-part polyurethane coating

(paint and catalyst) that hardens with age. Painting

time is limited after mixing. Refer to the paint

manufacturer’s speciﬁcations for working life of the

mixed paint.

6. Using appropriate paint spraying equipment, apply the ﬁnish paint to

all areas to be painted.

7. Allow paint to dry and apply one or more additional coats.

8. Allow painted cabinet to dry for a minimum of 24 hours (48 hours

recommended) before handling or removing any masking.

9. After 24 to 48 hours, carefully remove masking from hinges and

door hardware.

Note: Two-component polyurethane paint includes a

catalyst that causes the paint to harden and become

more durable with age. Within the ﬁrst 48 hours

after application, the paint is soft and scuffs easily.

Use care to not scuff or mar the surface.

1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 4-85

Installation

4-86 1/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Part 5

Hardware Replacement

1 Introduction . ................. 5-3

2 Safety Considerations . ............ 5-3

2.1 Grounding of the RBS Cabinets . . .... 5-3

2.2 Voltage Hazards . ............ 5-4

2.3 Radio Frequency Radiation ........ 5-4

2.4 Beryllium Oxide . ............ 5-4

2.5 Heavy Loads . . . ............ 5-5

3 Product Handling and Inspection ........ 5-6

4 General Troubleshooting ............ 5-6

4.1 Prerequisites and Tools . . ........ 5-6

4.2 Troubleshooting Procedure for RBS Cabinets 5-7

5 Alarm Troubleshooting . ............ 5-11

6 RBS Unit Hardware Replacement ........ 5-14

6.1 Prerequisites and Tools . . ........ 5-15

6.2 Power Supply Unit (PSU) Replacement . . 5-18

6.3 REMUX Unit Replacement ........ 5-20

6.4 STRM Unit Replacement . ........ 5-23

6.5 CONN Unit Replacement . ........ 5-25

6.6 EMRPM Unit Replacement ........ 5-28

6.7 TRX Unit Replacement . . ........ 5-30

6.8 ANP/RFTL Unit Replacement . . . .... 5-33

6.9 Alarm (ALM) Unit Replacement . . .... 5-35

6.10 Environmental Control Unit (ECU)

Replacement . . . ............ 5-38

6.11 Fan Replacement ............ 5-40

6.12 Main Heater Replacement ........ 5-42

6.13 Battery Heater Replacement . . . .... 5-45

6.14 Battery Replacement . . . ........ 5-49

6.15 AC Surge Suppressor Replacement .... 5-52

6.16 T1(E1) PCM Primary Surge Suppressor

Replacement . . . ............ 5-55

6.17 T1(E1) PCM Secondary Surge Suppressor

Replacement . . . ............ 5-56

6.18 Air Filter Replacement . . ........ 5-58

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-1

Hardware Replacement

5-2 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Hardware Replacement

1 Introduction

This part of the manual lists procedures for basic troubleshooting and

hardware replacement of faulty items of equipment, such as cabinet units

or cables.

The use of the procedures by a site maintenance technician may depend on

instructions from MSC personnel able to determine the status of the RBS

site equipment from the MSC.

The site maintenance technician may be asked to replace a particular unit

using the procedure in Section 6 on page 5-14, or to follow the

troubleshooting procedure in Section 4 on page 5-6 for determining a

faulty unit. The troubleshooting procedure is also used if failures occur

during the power-up procedure.

2 Safety Considerations

2.1 Grounding of the RBS Cabinets

This product is Safety Class 1 equipment.

The RBS cabinets must be connected to the AC power through a grounded

power cable, with the ground wire ﬁrmly connected to an electrical ground

(safety ground) at the power outlet.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-3

Hardware Replacement

DANGER!

Any interruption of the protective (grounding) conductor, or disconnection

of the protective ground terminal will cause a potential shock hazard that

could result in personal injury.

2.2 Voltage Hazards

DANGER!

Voltage over 100V is used in the AC equipment at the site. Observe safety

precautions. Contact with power can cause death. Do not be misled by the

term “low voltage”. Under adverse conditions, potentials as low as 50V

can result in death. Do not work alone while working with AC power.

DANGER!

Do not touch high voltage connections when installing or operating

equipment. If necessary, disconnect the AC power cable from the power

unit. Do not connect the AC power cable to the power unit when the unit

is removed from the RBS cabinet.

The power cable serves as the only power disconnection device for the

cabinet.

Keep one hand away from the equipment, if the nature of the maintenance

permits, to reduce the possibility of current ﬂowing through vital body

organs.

2.3 Radio Frequency Radiation

DANGER!

Radio frequency radiation from an antenna may be a danger to health,

causing severe burns to skin and clothing.

All transmitters must be disabled prior to working with or near antenna.

2.4 Beryllium Oxide

Some equipment contains beryllium oxide in ceramic form.

5-4 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Hardware Replacement

Warning!

Beryllium oxide is poisonous and constitutes a health hazard if present in

ﬁnely dispersed form, such as dust or smoke, which can be inhaled. Read

local hazardous chemical regulations before working with beryllium oxide.

Units with components containing beryllium oxide are marked with a

warning label. For detailed information on properties, health and

environmental hazards, refer to the regulations issued by the local

authorities.

The following rules must be obeyed by all persons handling beryllium

oxide:

•Ceramics containing beryllium oxide must not be scraped, ﬁled,

ground, treated with acid or machined in any other way.

•Compressed air must not be used to clean units containing beryllium

oxide.

•You must always wear protective gloves when handling beryllium

oxide.

•Use wet rags to collect dust and particles from damaged beryllium

oxide components. After use, place the rags in plastic bags and seal

the bags completely.

Scrapped beryllium oxide must be treated as environmentally hazardous

waste. Local authorities enforce regulations, regarding the treatment and

disposal of environmentally hazardous waste. Investigate the local

regulations which are applicable to you and comply with them.

2.5 Heavy Loads

Warning!

A heavy load lifted incorrectly can cause injury to persons and damage to

the equipment can result.

A heavy load is considered to be 10 kg (approximately 22 lbs).

Note: A fully equipped RBS 884 Micro (1900 MHz) cabinet exceeds

105 kg (230 lbs). Therefore Ericsson recommends that two

persons are present during the installation.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-5

Hardware Replacement

3 Product Handling and Inspection

Components may be damaged because of ESD. Read the Electrostatic

Discharge section for information and directions.

A hardware replacement unit must always be kept in its original box until

it is installed on a site.

The unit must not be exposed to wide variations in temperature, to direct

sunshine, or to high levels of humidity, such as may occur if the unit is

left in a car.

When handling circuits boards, do not touch any components or connector

pins.

If the packing material is damaged, inspect the unit immediately. If the

unit appears to be damaged, follow your local procedures or return it to

your local service center for repair or hardware replacement.

A faulty unit must always be accompanied by a completed Repair Traveler

Note, with written information concerning the circumstances of the

suspected fault. A Repair Traveler Note is a tie-on tag, which can be

attached to the unit.

4 General Troubleshooting

Operational status of the RBS equipment is indicated by LEDs mounted on

the front of the units plugged into the cabinets.

In general, green LEDs are used for power status, red LEDs are used for

error status, and yellow LEDs are used to indicate other types of

operational status.

The procedure in this section is used to determine faulty units by visual

inspection of the LEDs and other means. If the procedure does not result

in the detection of a faulty unit, the MSC must be informed in order to

determine if a problem at the site is still indicated at the MSC.

4.1 Prerequisites and Tools

4.1.1 Prerequisites

The troubleshooting procedure in this section is intended to be followed if

an RBS unit fault is detected during the power-up procedure, or at the

request of the MSC as a result of an RBS site equipment error indication

at the MSC.

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Hardware Replacement

4.1.2 Tools

All the tools needed to troubleshoot the RBS 884 Micro (1900 MHz) are

shown in Table 5-1 on page 5-7.

Table 5-1. Tools List

Product Number Description

Pen

LYB 250 01/14 ESD Wrist Strap and Cable2

LTD 117 02 and

LTD 117 14

Unit Extractor Tool (Handle + Button)

AC or AC/DC Voltmeter1

(for checking the line voltage)

1Included in Tool Kit LTT 601 044/1

2Included in Tool Case LTT 601 84

4.2 Troubleshooting Procedure for RBS Cabinets

RBS Cabinet Access

1. Unlock the door latches as shown in Figure 5-1 on page 5-7

Figure 5-1. Unlocking the RBS Cabinet Door

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Hardware Replacement

2. Open the cabinet door and secure the wind latch at the top of the

door. Open the door until the shoulder slides into the slot at the end

of the bar.

Note: To release the wind latch, lift up on the bar and

close the door.

3. Attach the ESD strap to your wrist and connect the “alligator”

connector to a suitable ground on the cabinet chassis. Do not attach

to a painted or coated surface. See Figure 5-2 on page 5-8.

ESD Wrist Strap

Note: Attach alligator clip to suitable

ground (unpainted surface) in cabinet.

Figure 5-2. Opening the RBS Cabinet and Attaching the ESD Strap

Troubleshooting Flowchart

4. Follow the ﬂowchart shown in Figure 5-3 on page 5-9 or Figure 5-4

on page 5-10 to identify a unit suspected to be faulty.

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Hardware Replacement

AC Power Troubleshooting

PSU OK

AC OK

DC OUTPUT ON

PSU CURRENT LIMIT

PSU LEDs

PSU OK

LED

on?

PSU

OUTPUT ON

LED

on?

PSU

AC OK

LED

on?

Yes

MAIN

breaker

on?

Turn AC MAIN

Breaker on.

Yes

Reset PSU circuit

breaker

and check

AC power cable.

PSU

AC OK

LED

on?

Replace PSU.

Refer to

Power Unit (PSU)

Replacement Section.

Report to MSC

Replace PSU.

Refer to

Power Unit (PSU)

Replacement Section.

Report to MSC

Yes

Refer to DC Power

Troubleshooting

Start

Yes

CONNECTED

indicator

on?

Verify incoming

AC power

is OK

Yes

CONNECTED

indicator

on?

Report to MSC

Replace PSU.

Refer to

Power Unit (PSU)

Replacement Section.

Report to MSC

Yes

Figure 5-3. Troubleshooting Flowchart for AC Power Connection

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Hardware Replacement

Start

Fan

airflow

OK?

Replace Fan.

Refer to the

Fan Replacement

section.

Report to MSC

Reset Fan breaker

and check fan power

cable

Ensure DC

power available

from power cable

Fan

airflow

OK?

Yes

Fan

Failure Code

ECU?

Fan

airflow

OK?

Yes

Error Codes

ECU?

Replace suspect unit.

Refer to the

Unit Replacement

Section.

All unit

red LEDs

off?

Report to MSC

Yes No

Yes

DC Power Troubleshooting

Report to MSC

Yes

Figure 5-4. Troubleshooting Flowchart for DC Power Connection

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Hardware Replacement

5. Troubleshooting procedures has been carried out as part of the

power-up procedure, return to the appropriate section and complete

the power-up procedure.

5 Alarm Troubleshooting

Refer to Table 5-2 on page 5-11 for RBS 884 Micro (1900 MHz) alarm

conditions and corrective actions. For alarm routing, refer to both Table

5-2 on page 5-11 and Figure 5-5 on page 5-14.

Table 5-2.

Condition

Alarm Name Alarm Source/Routing Corrective Action/

Alarm Clearing

Fan not within ±25% of

set speed (checked once

per second)

Single Fan Alarm

From ECU/TRXs via

backplane

Reset Fan breaker

Two or more fans not

within ±25% of set speed

(checked once per

second)

Multi-Fan Alarm

From ECU/TRXs via

backplane

Reset Fan breaker

AC Mains ≤minimum

PSU voltage requirement

AC Mains Failure Alarm

From PSU via AC/DC

Distribution Box via cable

to ECU via cable to

EMRPM via backplane

Self clears when AC

Mains voltage is

adequate to power PSU

AC Mains > 100 VAC

and

DC Out < 24 VDC

and

Output Current < 1A.

PSU Failure Alarm

From PSU via AC/DC

Distribution Box via cable

to ECU via cable to

EMRPM via backplane

Self Clears (Trigger

conditions not valid) after

PSU power is within

speciﬁcation

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Hardware Replacement

Table 5-2. (Continued)

Condition

DCBus Voltage < 22.9

VDC. Disconnects

Battery when < 20.9

VDC.

Low Voltage Disconnect

Alarm

From AC/DC Distribution

Box to ALM via cable

Self Clears

Temperature of Battery

Terminal > 70

Battery Thermal Alarm

From AC/DC Distribution

Box to ALM via cable

Self clears

One or more

Temperature sensors

shorted or open

(checked once per

second)

Temperature Sensor

Failure Alarm

From ECU to AC/DC

Distribution Box via

cable to ALM via cable

Self clears

Subrack Inlet ≤-6 Cor

Subrack Inlet ≥+51 Cor

Exhaust ≥+62 C. After

alarm generation there is

a six second delay

before subrack is

disconnected (checked

once per second).

Temperature Shutdown

Alarm

From ECU to AC/DC

Distribution Box via

cable to ALM via cable

Self clears if Subrack

Inlet ≥-4 C and Subrack

Inlet ≤+49 C and

Exhaust ≤+60 C

Ten minute delay

(warning) if ambient

temp ≤0C and Subrack

Inlet < ambient + 5 C for

ten minutes.

Main Heater Failure

Alarm

From ECU to AC/DC

Distribution Box via

cable to ALM via cable

Reset Main Heater

breaker

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Hardware Replacement

Table 5-2. (Continued)

Condition

Ambient temp > +15 C

and Battery

Compartment >

ambient + 10 C

Ambient temp < -5 C and

Battery Compartment <

ambient + 5 C

Battery Compartment

Temperature Alarm

From ECU to AC/DC

Distribution Box via

cable to ALM via cable

Self clears when

temperature returns to

within speciﬁcations.

AC Surge

No AC Power = alarm

AC Surge Suppressor

Alarm

From AC Surge

Suppressor via cable to

AC/DC Distribution Box

via cable to ALM

Self clears if AC Surge

Suppressor is not

damaged

Top or Front Door is

Open

Door Alarm

From Switches via cable

to AC/DC Distribution

Box via cable to ALM

Self clears when both

doors closed

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Hardware Replacement

External Alarm 0 (APT)

External Alarm 3 (APT)

External Alarm 4 (APT)

External Alarm 5 (APT)

External Alarm 6 (APT)

External Alarm 7 (APT)

External Alarm 8 (APT)

External Alarm 9 (APT)

Single Fan Alarm

Multiple Fan Alarm

Temperature Shutdown Alarm

Main Heater Alarm

Battery Comp. Temp. Alarm

Temp. Sensor Failure Alarm

AC Mains Failure Alarm

PSU Failure Alarm

Battery Thermal Discon. Alarm

Low Voltage Disconnect Alarm

Door Alarm

Surge Suppressor Alarm

MC-B Alarm

MC-A Alarm

ANP

AC Alarm (Alarm 3 - APT/Printou)

DC Alarm (Alarm 2 - APT/Printou)

MC-A Alarm (Alarm 1 - APT OBS)

MC-B Alarm (Alarm 0 - APT OBS)

EMRPM

ECU

ALM

Backplane

Distribution Box

Fan Alarm 1 (Malfunction Log)

Fan Alarm 2 (Malfunction Log)

Note: When both fan alarms

sent, APT alarm is generated.

Figure 5-5. RBS 884 Micro (1900 MHz) Alarm Routing

6 RBS Unit Hardware Replacement

When a suspected faulty unit is identiﬁed either by indications at the MSC

or by the troubleshooting procedure in Section 4 on page 5-6, follow the

appropriate procedure in this section to replace the unit.

Hardware replacement procedures are provided for the following devices:

•Power Supply Unit (PSU)

•REMUX Unit

•STRM Unit

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Hardware Replacement

•CONN Unit

•EMRPM Unit

•TRX Unit

•ANP/RFTL Unit

•Alarm (ALM) Unit

•Environmental Control Unit (ECU)

•Fans

•Main Heater

•Battery Heater

•Batteries

•AC Surge Suppressor

•PCM (T1/E1) Primary Surge Suppressor

•PCM (T1/E1) Secondary Surge Suppressor

•Air Filter

6.1 Prerequisites and Tools

6.1.1 Prerequisites

Before a faulty unit is replaced, the hardware replacement unit must be

available and must have the same or higher R-state number (R-state letters

do not matter).

When units other than the power or fan unit are replaced, suitable blank

panels (8M, 10M, or 12M) or dummy TRXs (RMUs) must be available in

case the hardware replacement takes an extended amount of time. The

blank panels ensure proper cooling and EMC shielding.

6.1.2 Tools

The tools required for unit hardware replacement are shown in Table 5-3

on page 5-16, Figure 5-6 on page 5-16, Figure 5-7 on page 5-17 and

Figure 5-8 on page 5-17. Additionally, an ESD bag is required for the unit

suspected to be faulty (other type of bag can be used for fan and power

units).

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Hardware Replacement

Table 5-3. Tools for RBS Unit Hardware Replacement

Product Number Description

LYB 250 01/14 ESD Wrist Strap and Cable

LTT 601 82 Torque Wrench set including:

- Torque Wrench 0.6 Nm

- Torx bit T10 for circuit board screws

- SMA tool for the coaxial cables

LSA 126 11/10 Torx driver TX10

LTD 117 02 and

LTD 117 14

Unit Extractor Tool (Handle and Button)

Small Screwdriver or Pen (to set switches)

Repair Traveler Note

ANP/RFTL

PCM

Test

TLINK

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

NOTE: Before removing any unit, remove and save

the extractor hole plug. Replace plug after installing

or replacing unit.

Figure 5-6. Unit Extractor Tool (Example with the REMUX Unit)

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Hardware Replacement

Torx Bit T10

Torque Wrench

Unit Screws

ANP/RFTL PCM

Test

TLINK

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

Figure 5-7. Torque Wrench with Torx Bit TX10 (Example with the REMUX Unit)

Torque Wrench SMA Tool

SMA Connector

Figure 5-8. Torque Wrench with SMA Tool

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Hardware Replacement

6.2 Power Supply Unit (PSU) Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit. The MSC have to

block RBS units before you start.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Ensure the hardware replacement unit is the same type as the unit to

be replaced, and that it has the same or higher R-state number.

Warning!

Verify all TRX status LEDs (see Figure 5-14 on page 5-31) in the

cabinet are off. If the main cabinet power unit is to be changed, all

TRX status LEDs in all cabinets have to be checked.

If any TRX status LEDs are on or ﬂashing, contact the MSC.

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Locate the power unit shown in Figure 5-9 on page 5-19.

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Hardware Replacement

ANP/RFTL

AC Power

Connector

Figure 5-9. The Power Unit

7. Power down the RBS cabinet by turning the PSU and AC Mains

circuit breakers off.

8. Disconnect the AC Power connector.

9. Disconnect the DC Power connector.

10. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

11. Pull the unit out, and place it in a bag.

Unit Hardware Replacement

12. Remove the hardware replacement unit from its packaging and

carefully slide the unit into the cabinet in place of the old unit.

13. Use torque wrench with the Torx bit TX10 to tighten the screws on

the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

14. Reconnect the AC and DC Power connectors.

15. Follow the procedure for powering up the cabinet from the

Installation part Equipment Power Up.

16. Inform the MSC that the unit has been replaced, so that they can

perform a test.

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Hardware Replacement

17. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

18. Close the cabinet door.

Unit Repair

19. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

20. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

21. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state number.

6.3 REMUX Unit Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure. This procedure

will also disable any additional sectors and cascaded RBS systems.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the

unit to be replaced, and that it has the same or higher R-state.

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Hardware Replacement

Warning!

Check that the REMUX status LEDs (see Figure 5-10 on page 5-21)

and all TRX status LEDs (see Figure 5-14 on page 5-31) in all

cabinets are off.

If any of the mentioned status LEDs are on or ﬂashing, contact the

MSC.

ANP/RFTL

PCM

Test

TLINK

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

Figure 5-10. The REMUX Unit

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Make a note of the cables connected to the unit.

7. Disconnect the cables from the unit.

8. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

Warning!

The slot in the cabinet must not be left empty for an extended period

of time. If there is any delay in installing the hardware replacement

unit, then a blank panel (Blank 12M) must be screwed into the slot

position (or the old unit left in position).

Pull out the unit, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing unit.

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Hardware Replacement

Unit Hardware Replacement

10. Remove the hardware replacement unit from its ESD bag and set its

switches to match those on the old unit.

The switch settings are described in the Installation part Setting

the Unit Switches.

11. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connector.

12. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

13. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

14. Connect the cables that were disconnected in Step 7 on page 5-21 to

the unit.

If you are not sure of how the cables were connected, see the

Installation part External Cable Installation (external cables)

and Appendix C (internal cables).

15. The REMUX requires approximately 20 minutes to synchronize. If

the RBS 884 Micro (1900 MHz) does not become operational after

20 minutes, issue a software repair command to the STRM. The

command is RECEI.

16. Inform the MSC that the unit has been replaced, so that they can

perform a test.

17. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

18. Close the cabinet door.

Unit Repair

19. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

20. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

21. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

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Hardware Replacement

6.4 STRM Unit Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure. This procedure

will also disable any additional sectors and cascaded RBS systems.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

Warning!

Check that the STRM status LEDs (see Figure 5-11 on page 5-24)

and all TRX status LEDs (see Figure 5-14 on page 5-31) in all

cabinets are off.

If any of the mentioned status LEDs are on or ﬂashing, contact the

MSC.

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Hardware Replacement

Status LEDs

STRM

Power

Error

Status 1

EMRPB

Status 2

OUT

ANP/RFTL

Figure 5-11. The STRM Unit

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Disconnect the cable or terminator from the unit.

7. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

Warning!

The slot in the cabinet must not be left empty for an extended period

of time. If there is any delay in installing the hardware replacement

unit, a blank panel (Blank 8M) must be screwed into the slot position.

Pull out the unit, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing unit.

Hardware Replacement Unit

9. Remove the hardware replacement unit from its ESD bag

10. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connector.

11. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

12. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

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Hardware Replacement

13. Reconnect the cable or terminator that was disconnected earlier.

14. If the RBS 884 Micro (1900 MHz) does not become operational,

cycle the power to the cabinet to reload the software.

15. Inform the MSC that the unit has been replaced, so that they can

perform a test.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. Close the cabinet door.

Unit Repair

18. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

19. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

20. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

6.5 CONN Unit Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

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Hardware Replacement

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

Warning!

Check that all TRX status LEDs (see Figure 5-14 on page 5-31) in

the relevant cabinet are off.

If they are on or ﬂashing, contact the MSC.

Power

Error

Status 2

OUT

EMRPB

AFS

Out

AFS

TL 1

TL 2

Status 1

CONN

Status LEDs

Figure 5-12. The CONN Unit

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Make a note of the cables connected to the unit.

7. Disconnect the cables from the unit.

8. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

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Hardware Replacement

Warning!

The slot in the cabinet must not be left empty for an extended period

of time. If there is any delay in installing the hardware replacement

unit, a blank panel (Blank 8M) must be screwed into the slot position.

Pull out the unit, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing unit.

Hardware Replacement Unit

10. Remove the hardware replacement unit from its ESD bag.

11. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connector.

12. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

13. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

14. Connect the cables that were disconnected earlier.

15. Inform the MSC that the unit has been replaced, so that they can

perform a test.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. Close the cabinet door.

Unit Repair

18. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

19. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

20. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

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Hardware Replacement

6.6 EMRPM Unit Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

Warning!

Check that the EMRPM status LEDs (see Figure 5-13 on page 5-29)

and all TRX status (see Figure 5-14 on page 5-31) in the relevant

cabinet are off. If any main cabinet EMRPM is to be changed, all

TRX status LEDs in all cabinets have to be checked.

If any of the mentioned status LEDs are on or ﬂashing, contact the

MSC.

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Hardware Replacement

Status LEDs

Power

Error

Status 1

Status 2

TW/DEB

ANP/RFTL

Figure 5-13. An EMRPM Unit

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Disconnect the cables from the unit.

7. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

Warning!

The slot in the cabinet must not be left empty for an extended period

of time. If there is any delay in installing the hardware replacement

unit, a blank panel (Blank 8M) must be screwed into the slot position.

Pull out the unit, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing unit.

Unit hardware replacement

9. Remove the replacement unit from its ESD bag and set its switches

to match those on the old unit.

The EMRPM unit has an address switch. The settings are

described in Installation,Setting the Unit Switches.

10. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connector.

11. Use the torque wrench with the Torx bit TX10 or TX8 to tighten the

screws on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

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Hardware Replacement

12. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

13. If the RBS 884 Micro (1900 MHz) does not become operational after

ﬁve to eight minutes, cycle the power to the cabinet to reload the

software.

14. Inform the MSC that the unit has been replaced, so that they can

perform a test.

15. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

16. Close the cabinet door.

Unit Repair

17. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

18. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

19. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

6.7 TRX Unit Replacement

Unit Removal

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

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Hardware Replacement

Warning!

Check that the status LED on the TRX to be replaced (see Figure

5-14 on page 5-31) is off.

If it is on or ﬂashing, contact the MSC.

Status LED ANP/RFTL

Tx Out

Power

Error

Status

1900M

TRX

Figure 5-14. A TRX Unit

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Disconnect the cable from the unit, using the torque wrench with the

SMA tool.

7. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

Warning!

The slot in the cabinet must not be left empty for an extended period

of time. If there is any delay in installing the hardware replacement

unit, an RMU (dummy TRX) must be installed or the old TRX left

in position.

Pull out the unit, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing unit.

Unit hardware replacement

9. Remove the hardware replacement unit from its ESD bag.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-31

Hardware Replacement

10. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connector.

11. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

12. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

13. Connect the cable that was disconnected earlier.

When attaching the cable connector to the connector on the

unit, hand-tighten as much as possible. Thereafter, fully tighten

using the torque wrench with the SMA tool. When turning the

torque wrench until it slides, the connector is tightened with

the torque 0.6 Nm.

14. Inform the MSC that the unit has been replaced, so that they can

perform a test.

15. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

16. Close the cabinet door.

Unit Repair

17. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

18. Pack the unit in the packing material from the new unit and return it

to your local service center.

Note: Do not dispose of the TRX unit. Its components

contain beryllium oxide.

Plant Speciﬁcation update

19. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

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Hardware Replacement

6.8 ANP/RFTL Unit Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

Warning!

Check that the status LED on the unit to be replaced (see Figure

5-15 on page 5-34) is off.

If it is on or ﬂashing, contact the MSC.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-33

Hardware Replacement

Status LED ANP/RFTL

ANP/RFTL

Figure 5-15. The ANP/RFTL Unit

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Make a note of the cables connected to the unit.

7. Disconnect the cables from the unit. Disconnect antenna cables by

hand. Use the torque wrench with the SMA tool for other cables.

8. Use the torque wrench with the Torx bit TX10 or TX8 to loosen the

screws on the front of the unit.

Warning!

The slot in the cabinet must not be left empty for an extended period

of time. If there is any delay in installing the hardware replacement

unit, leave the old unit in the slot until the replacement unit is

available.

Pull out the unit, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing unit.

Unit Hardware Replacement

10. Remove the hardware replacement unit from its ESD bag.

11. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connectors.

12. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

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Hardware Replacement

13. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

14. Connect the cables that were disconnected earlier.

When attaching the cable connector to the connector on the

unit, hand-tighten as much as possible. Fully tighten SMA

connectors using the torque wrench with the SMA tool. Turn

the torque wrench until it slides. The torque wrench tightens

the connector to a torque of 0.6 Nm. Hand tighten TNC

connectors. Do not use the torque wrench on TNC connectors.

If you are not sure of how the cables were connected, see the

Installation part External Cable Installation (external cables)

and Appendix C (internal cables).

15. Inform the MSC that the unit has been replaced, so that they can

perform a test.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. Close the cabinet door.

Unit Repair

18. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

19. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

20. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

6.9 Alarm (ALM) Unit Replacement

Unit Removal

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-35

Hardware Replacement

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

Warning!

Check that the status LED on the unit (see Figure 5-16 on page

5-36) is off.

If it is on or ﬂashing, contact the MSC.

Status LED

ALM

Power

Error

Status

CLINK

Control

Alarm

ANP/RFTL

Figure 5-16. The Alarm Unit

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Make a note of the cables connected to the unit.

7. Disconnect the cables from the unit.

8. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

Note: All External Alarms are disabled when the ALM

unit is blocked.

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Hardware Replacement

Warning!

The slot in the cabinet must not be left empty for an extended period

of time. If there is any delay in installing the hardware replacement

unit, a blank panel (Blank 10M) must be screwed into the slot

position.

Pull out the unit, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing unit.

Unit Hardware Replacement

10. Remove the hardware replacement unit from its ESD bag.

11. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connector.

12. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

13. Check that the green power LED on the unit is on and the red error

LED is off. If this is not the case, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

14. Connect the cables that were disconnected earlier.

15. Inform the MSC that the unit has been replaced, so that they can

perform a test.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. Close the cabinet door.

Unit Repair

18. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

19. Pack the unit in the packing material from the new unit and return it

to your local service center.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-37

Hardware Replacement

Plant Speciﬁcation update

20. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

6.10 Environmental Control Unit (ECU) Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

4. Refer to Figure 5-17 on page 5-39)

5-38 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Hardware Replacement

ANP/RFTL

Figure 5-17. Environmental Control Unit (ECU)

5. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

6. Turn off the ECU circuit breaker.

7. Make a note of the cables connected to the unit.

8. Disconnect the cables from the unit.

9. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the unit.

10. Pull out the unit, using the extractor tool, and place it in an ESD

bag. If required, remove the handle of the extractor tool. Save the

extractor hole plug. Replace the plug after installing or replacing unit.

Unit Hardware Replacement

11. Remove the hardware replacement unit from its ESD bag.

12. Carefully slide the replacement unit into the cabinet in place of the

old unit. Push the unit ﬁrmly into the backplane connector.

13. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front.

Turn the torque wrench until it slides to tighten to 0.6 Nm.

14. Connect the cables that were disconnected earlier.

15. Turn on the ECU circuit breaker.

16. After fan test is complete, verify the decimal points located in the

two digit display are illuminated. If not, refer to the troubleshooting

procedure in Section 4 on page 5-6 for detection of units suspected

to be faulty.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-39

Hardware Replacement

17. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

18. Close the cabinet door.

Unit Repair

19. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

20. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

21. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement, and new R-state.

6.11 Fan Replacement

Unit Removal

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

3. Pull out the two plungers in the top cap and lift cap up until the top

brace limits travel. Lower cap slightly while pushing the support

brace towards the rear of the cabinet. Ensure the support brace

engages the mating bracket

4. Identify the failed fan unit.

Warning!

A unit must never be replaced with another with a lower R-state

number.

Check that the hardware replacement unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

5-40 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Hardware Replacement

Warning!

The remaining steps in this procedure must be performed as quickly

as possible in order to avoid overheating the cabinet.

Disconnect the cable from the unit.

7. Inform the MSC that the unit has been replaced, so that they can

perform a test.

8. Disconnect the three-wire connector. See Figure 5-18 on page 5-41.

9. Disconnect the two-wire connector.

Fan Connectors

Figure 5-18. The Fan Unit

10. Remove the tie wraps securing the fan wiring.

11. Remove the three screws that secure the fan unit to the cabinet frame.

12. Remove the fan unit.

Unit Hardware Replacement

13. Remove the replacement fan unit.

14. Install new fan unit and replace three mounting screws.

15. Replace tie wraps if required.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-41

Hardware Replacement

16. Reconnect the two-wire fan connector.

17. Reconnect the three-wire fan connector.

18. Cycle the fan breaker (turn off and turn on) to reset the fan alarm.

The fan start-up sequence will be initiated.

19. If the new fan does not start, refer to the troubleshooting procedure

in Section 4 on page 5-6 for detection of units suspected to be faulty.

20. Close the top cap by disengaging the support brace. Press down

ﬁrmly on the top cap until the two plungers engage the slots on the

cabinet.

Note: Press the plungers toward rear of cabinet to ensure

proper plunger seating.

21. Close the cabinet door.

22. Inform the MSC that the unit has been replaced.

Unit Repair

23. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

24. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

25. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

6.12 Main Heater Replacement

Warning!

The following procedure will disable the RBS 884 Micro (1900 MHz).

The unit will be out of service during the procedure. Contact the MSC

before performing the following procedure.

Unit Removal

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

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Hardware Replacement

3. Place the MAIN HTR circuit breaker on the right side of the AC/DC

Distribution Box in the OFF position. See Figure 5-19 on page 5-43

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 5-19. AC/DC Distribution Box

4. Locate the Main Heater Assembly. See Figure 5-20 on page 5-43.

Figure 5-20. Subrack Heater

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-43

Hardware Replacement

5. Check that the heater assembly is the same type as the unit to be

replaced.

6. Unplug the heater control wires from the front of the heater assembly.

7. Remove the two screws located on the top of the perforated heater

assembly cover. Remove the cover and retain for installation on

replacement unit.

8. Remove the mounting screws located on each side of the heater

assembly (two per side). Pull the heater assembly out four to six

centimeters.

Warning!

Use a voltmeter to verify the unit is NOT energized. Do not assume

power is OFF.

Locate the heater power cable on the right side of the heater

assembly. Follow cable into the heater assembly and locate the

black, white, and green power wires.

Note: If required, remove any ties or clamps securing

power wires.

10. Disconnect the black, white, and green power wires. If needed,

record wire position and connections.

11. Remove the strain relief and remove the power cable from the heater

assembly. Remove heater assembly from cabinet.

Unit Hardware Replacement

12. Remove the replacement unit from any packing material.

13. Remove the two screws located on the top of the perforated heater

assembly cover. Remove the cover.

14. Insert new replacement heater assembly approximately eight to ten

centimeters into cabinet opening.

15. Insert power cable through right side of heater assembly.

16. Reconnect the black, white, and green power wires. The black wire

connects to the solid-state relay terminal (2). The white wire

connects to 1L1 and 1L2 with a wire nut. The green wire connects

to the heater assembly ground.

17. Replace the top cover and secure with two screws.

18. Insert the heater assembly all the way into the cabinet opening and

replace the mounting screws (two per side).

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Hardware Replacement

19. Reconnect the heater control wires to front of heater assembly.

20. Place the MAIN HTR circuit breaker on the right side of the AC/

DC Distribution Box in the ON position.

21. Close the cabinet door.

22. Inform the MSC that the unit has been replaced.

Unit Repair

23. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

24. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

25. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

6.13 Battery Heater Replacement

Unit Removal

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

3. Place the BAT circuit breaker on the left side of the AC/DC

Distribution Box in the OFF position.

4. Place the BAT HTR circuit breaker on the right side of the AC/DC

Distribution Box in the OFF position. See Figure 5-21 on page 5-46

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-45

Hardware Replacement

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 5-21. AC/DC Distribution Box

5. Locate the battery compartment. The battery heater is under the

battery tray. See Figure 5-22 on page 5-46.

Battery

Compartment

Failed Battery

Sensor connector

Power Connector

Figure 5-22. Location of Battery Heater

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Hardware Replacement

6. Remove the four screws from the battery cover and remove the cover

from the battery compartment.

7. Disconnect the Failed Battery Sensor connector.

8. Disconnect the power connector of the battery cable assembly from

the connector at the top of the battery compartment.

9. Remove the hex nut on the hold-down bracket on the side wall of

the battery compartment. Remove the hold down bracket.

10. Remove the battery tray with the batteries from the battery

compartment.

11. Locate the battery compartment. The battery heater is under the

battery tray. See Figure 5-25 on page 5-50.

Heater Assembly

Electrical Connections

Located Inside

Enclosure

Thermostat

Heater

Figure 5-23. Battery Heater Assembly

12. Remove the screw on the front of the wiring enclosure located above

the battery compartment. Support the enclosure.

13. Pull the enclosure down and locate the two screws securing the

battery heater thermostat to bottom of enclosure.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-47

Hardware Replacement

14. Remove the thermostat nuts and thermostat.

15. Remove the two heater power wires from the terminal strip inside

the enclosure. Remove the strain relief and pull the wires through

the bottom of the enclosure.

16. Remove the heater assembly from the cabinet.

Unit Hardware Replacement

17. Remove any packing material from the replacement heater assembly.

18. Push two heater power wires through strain relief and bottom of

enclosure. Connect wires to terminal strip.

19. Secure thermostat to bottom of enclosure with two screws removed

previously.

20. Raise enclosure and slide pins into holes. Secure enclosure to top of

battery compartment with screw removed previously.

21. Install the battery tray.

22. Install the hold-down bracket and the hex nut on the side wall of the

battery compartment.

23. Reconnect the power connector of the battery cable assembly to the

connector at the top of the battery compartment.

24. Reconnect the Failed Battery Sensor connector.

25. Install the battery compartment cover with the four screws removed

previously.

26. Place the BAT circuit breaker on the left side of the AC/DC

Distribution Box in the ON position.

27. Place the BAT HTR circuit breaker on the right side of the AC/DC

Distribution Box in the ON position.

28. Close the cabinet door.

29. Inform the MSC that the unit has been replaced.

Unit Repair

30. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

31. Pack the unit in the packing material from the new unit and return it

to your local service center.

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Hardware Replacement

Plant Speciﬁcation update

32. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement, and new R-state.

6.14 Battery Replacement

Unit Removal

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

3. Place the BAT circuit breaker on the left side of the AC/DC

Distribution Box in the OFF position. See Figure 5-24 on page 5-49

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 5-24. AC/DC Distribution Box

4. Locate the battery compartment. See Figure 5-25 on page 5-50.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-49

Hardware Replacement

Copper Strap

Battery 1

Battery 2

Battery Tray

Battery Heater

Failed Battery

Sensor Connector

Figure 5-25. Battery Assembly

5. Remove the four hex head screws from the battery cover and remove

the cover from the battery compartment.

6. Disconnect the Failed Battery Sensor connector.

7. Disconnect the power connector of the battery cable assembly from

the connector at the top of the battery compartment.

8. Remove the hex nut on the hold-down bracket on the side wall of

the battery compartment. Remove the hold down bracket.

9. Remove the battery tray with the batteries from the battery

compartment.

10. Disconnect one of the 18-gauge white wires labeled POST from the

negative terminal of battery 1. Disconnect the other 18-gauge white

wire from the negative terminal of battery 2.

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Hardware Replacement

11. Disconnect the 8-gauge black cable from the negative terminal (-) of

battery 1.

12. Disconnect the 8-gauge red cable from the positive terminal (+) of

battery 2.

13. Remove the copper strap connecting the center terminals (positive

terminal of battery 1 to negative terminal of battery 2).

14. Remove the batteries from the battery tray.

15. Dispose of old batteries properly.

Unit Hardware Replacement

16. Remove the replacement batteries from the packing material.

17. Install the batteries into the battery tray as illustrated in Figure 5-25

on page 5-50. Place the hold-down bracket on the batteries.

18. Connect the center terminals (positive terminal of battery 1 to

negative terminal of battery 2) with the copper strap. Do not tighten

the negative terminal of battery 2 at this time.

19. Connect the 8-gauge black cable to the negative terminal (-) of

battery 1.

20. Connect the 8-gauge red cable to the positive terminal (+) of battery

Note: Ensure the terminals are placed inward, toward the

back of the battery. Torque all bolts to 50 in-lbs.

21. Connect one of the 18-gauge white wires labeled POST to the

negative terminal of battery 1. Connect the other 18-gauge white

wire to the negative terminal of battery 2.

22. Install the battery tray with the batteries in the battery compartment.

Make sure the battery cable assembly is not pinched against the

battery compartment.

23. Place the hold-down bracket over the screw on the side wall of the

battery compartment. Secure with a hex nut.

24. Connect the power connector of the battery cable assembly to the

connector at the top of the battery compartment.

25. Connect the Failed Battery Sensor connector.

26. Install the battery cover on the battery compartment with the four

hex head screws.

27. Place the BATT circuit breaker on the left side of the AC/DC

Distribution Box in the ON position.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-51

Hardware Replacement

Plant Speciﬁcation update

28. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement and new R-state.

6.15 AC Surge Suppressor Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

3. Disconnect all power to the RBS 884 Micro (1900 MHz) cabinet.

Warning!

Verify all power is removed from cabinet. Verify the AC

CONNECTED indicator light is off.

Place the MAIN circuit breaker on the right side of the AC/DC

Distribution Box in the OFF position. See Figure 5-26 on page 5-53

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Hardware Replacement

ALM CABLE ECU CABLE

SUBRK PWR

FAN PWR CSU

SENSORS

CONNECTED

MAIN PSU MAIN

HTR BAT

HTR GFI

OUTLET

BAT ECU CSU FANS

BAT COMP

BAT

ALM DOOR

ALM

OFF

Figure 5-26. AC/DC Distribution Box

5. Open the front of the AC/DC Distribution Box and locate the AC

Surge Suppressor on back wall. See Figure 5-27 on page 5-53.

AC Surge Suppressor

Located on Rear Wall of

AC/DC Control Enclosure

PROTECTEDPOW

ERO

LINE

NEUTRAL

Figure 5-27. AC Surge Suppressor Assembly

6. Verify the LEDs on front of surge suppressor are off.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-53

Hardware Replacement

7. Disconnect the LINE and NEUTRAL wires from the front of the

surge suppressor.

8. Remove the nuts securing the surge suppressor to rear wall. Remove

the surge suppressor.

Unit Hardware Replacement

9. Remove any packing material from the replacement unit.

10. Install new surge suppressor to rear wall of AC/DC Distribution Box

using nuts removed previously.

11. Reconnect the LINE and NEUTRAL wires to the front of the surge

suppressor.

12. Place the MAIN circuit breaker on the right side of the AC/DC

Distribution Box in the ON position.

13. Verify the LEDs on front of surge suppressor are on.

14. Close the AC/DC Distribution Box.

15. Close the cabinet door.

16. Inform the MSC that the unit has been replaced.

Unit Repair

17. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

18. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

19. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement, and new R-state.

5-54 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Hardware Replacement

6.16 T1(E1) PCM Primary Surge Suppressor Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

3. Locate the Primary Surge Suppressor on the right inside wall of

cabinet.

4. See Figure 5-28 on page 5-55.

12345

Located on Right Inside Wall

T1(E1) PCM Primary Surge

Suppressor Tube (10)

Figure 5-28. T1(E1) Primary Surge Suppressor

5. Remove the T1(E1) connections from the surge suppressor.

6. Remove the four nuts securing the surge suppressor to the cabinet.

remove the unit from the cabinet.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-55

Hardware Replacement

Unit Hardware Replacement

7. Remove the replacement unit.

8. Install the replacement unit in the cabinet and replace the four nuts.

9. Reattach the T1 (E1) connections.

10. Close the cabinet door.

11. Inform the MSC that the unit has been replaced.

Unit Repair

12. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

13. Pack the unit in the packing material from the new unit and return it

to your local service center.

Plant Speciﬁcation update

14. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement, and new R-state.

6.17 T1(E1) PCM Secondary Surge Suppressor Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The unit will be out of service during the procedure. Contact

the MSC before performing the following procedure.

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

3. Locate the T1(E1) PCM Secondary Surge Suppressor. See Figure

5-29 on page 5-57.

5-56 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Hardware Replacement

T1(E1) PCM Secondary Surge

Suppressor is Located Below

the AC/DC Box.

Suppressor #2

(Optional)

Suppressor #1

Ground Wire

(to Gnd Plate)

T1(E1) PCM Shielded Cable

(From: Equip to: Subrack

REMUX "PCM PRIM")

T1(E1) PCM Shielded Cable

(From: Equip To: Subrack

REMUX "PCM SEC")

T1(E1) PCM Shielded Cable

(From: Line To: PSSI-J2)

T1(E1) PCM Shielded Cable

(From: Line To: PSSI-J1)

Figure 5-29. T1(E1) PCM Secondary Surge Suppressor Assembly

4. Remove the T1(E1) PCM shielded cables from the surge suppressor

to be replaced. Record position of cables if required.

5. Remove the ground wire.

6. Remove the two mounting screws (or nuts) and remove unit from the

cabinet.

Unit Hardware Replacement

7. Install replacement unit in cabinet and replace two mounting screws.

8. Reattach T1(E1) cables and ground wire.

9. Close the cabinet door.

10. Inform the MSC that the unit has been replaced.

Unit Repair

11. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

12. Pack the unit in the packing material from the new unit and return it

to your local service center.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-57

Hardware Replacement

Plant Speciﬁcation update

13. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement, and new R-state.

6.18 Air Filter Replacement

Unit Removal

1. Get permission from the MSC to replace the unit.

2. Open the cabinet door as described in the steps beginning with Step

1 on page 5-7.

3. See Figure 5-30 on page 5-58.

Air Filter Located Behind

Cover Plate

Figure 5-30. Air Filter Location

4. Locate the lower air ﬁlter cover.

5. If equipped with slide latches, grasp the slide latches and move

outward. If equipped with screws, remove the screws. Remove the

cover and set aside.

6. Locate the air ﬁlter and slide outward.

Note: Use care when removing air ﬁlter. Ensure that no

dust or debris from the air ﬁlter enters the cabinet.

5-58 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Hardware Replacement

7. Dispose of the old air ﬁlter properly.

Unit Hardware Replacement

8. Remove the replacement unit and note air ﬂow directional arrows on

side of ﬁlter.

9. Install the new air ﬁlter with directional air ﬂow arrows pointed up.

10. Replace front cover and slide latches inward to secure cover.

11. Close the cabinet door.

12. Inform the MSC that the unit has been replaced.

Plant Speciﬁcation update

13. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit: use the comments ﬁeld to note the date of

hardware replacement, and new R-state.

2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 5-59

Hardware Replacement

5-60 2/1551-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Part 6

Glossary of Terms

Auxiliary Cabinet Any extra RBS cabinet besides the main RBS

cabinet. It is connected to the main cabinet (no

direct connection with the MSC).

Cascading Connecting another radio base station to a ﬁrst

one, thus using a common PCM line to the MSC.

Dummy TRX A blank panel with an empty box behind, to be

placed in unused TRX positions to ensure proper

cooling and EMC shielding.

E1 Connection The European standard for 2.048 Mbit/s PCM

connections, carrying 32 independent 64 kbit/s

channels (DS0s) numbered 0–31.

Main Cabinet The Main Cabinet is directly connected to an

MSC by a PCM link. The cabinet always has an

antenna system.

Mobile Switching

Center The Mobile Switching Center handles all

connections and disconnections of calls to a

mobile station (MS) and serves as the interface

between the mobile network and the Public

Switched Telephone Network (PSTN).

Primary Cabinet The Primary Cabinet is used to create an

additional sector within an omni cell.

T1 Connection The American standard for 1.544 Mbit/s PCM

connections carrying 24 independent 64 kbit/s

channels (DS0s) numbered 1–24.

1/0033-EN/LZB 119 3312 Uae Rev PA4 1998-10-05 6-1

Glossary of Terms

6-2 1/0033-EN/LZB 119 3312 Uae Rev PA4 1998-10-05

Part 7

Acronyms and Abbreviations

AC Alternating Current

ALM Alarm

ANP Antenna Near Part

B8ZS Bit 8 Zero Substitute

CLC Control signaling Link

CONN Connection Board

CRC Cyclic Redundancy Check

DS0 Digital Signal Level 0

DVER Digital Veriﬁcation module

EMC Electromagnetic Compatibility

EMRP Extension Module Regional Processor

EMRPM EMRP for Micro Base

ESD Electrostatic Discharge

FCC Federal Communications Commission

LED Light Emitting Diode

MC Multi Coupler

MCPA Multi Carrier Power Ampliﬁer

MSC Mobile Switching Center

PCB Printed Circuit Board

PCM Pulse Code Modulation

PSU Power Supply

RBS Radio Base Station

REMUX Remote Multiplexor: Interfacing Board for the RBS

RF Radio Frequency

RFTL Radio Frequency Test Loop

RMU Radio Matching Unit

RX Receiver

STR Signaling Terminal Regional

STRM Signal Terminal Remote

TRX Transceiver

TS Time slot

TX Transmitter

2/0033-EN/LZB 119 3312 Uae Rev PA1 1998-09-22 7-1

Acronyms and Abbreviations

7-2 2/0033-EN/LZB 119 3312 Uae Rev PA1 1998-09-22

Appendix A

Documentation Overview

1 Introduction . ................. A-3

2 RBS 884 Customer Manuals . . ........ A-3

5/1551-EN/LZB 119 3312 Uae Rev A 1997-11-20 A-1

Appendix A

A-2 5/1551-EN/LZB 119 3312 Uae Rev A 1997-11-20

Appendix A

1 Introduction

This appendix provides an overview of the existing customer manuals for

RBS 884, the work procedures covered by the manuals, and the

recommended use of the manuals.

2 RBS 884 Customer Manuals

The customer manuals for RBS 884 cover the work procedures for Radio

Network Design, Radio Site Engineering, Data Transcript, Installation and

Test, Customer System Test, and Maintenance (see Figure A-1 on page

A-3).

RF Module Site Engineering

Manual

RBS Integration

Guidelines

Installation and

Maintenance Manual

Job Procedures

RBS Integration

Guidelines

Job Procedures

Installation and

Maintenance Manual

Job Procedures

Installation

and

Test

Figure A-1. RBS 884 Customer Manuals Related to Work Procedures

Use the RF Guidelines and Cell Design Data to plan and dimension a

cellular network based on the Ericsson Cellular Telephone System. Then

engineer all the sites using the Site Engineering Manual, and create a data

transcript using the RBS Integration Guidelines.

Install and test the sites using the Installation Manuals and the Job

Procedures. Commission the sites and test the cellular network using the

RBS Integration Guidelines and Job Procedures.

Use the Job Procedures during operation and maintenance from the MSC.

Use the Parts Catalog to identify replacable RBS parts, and use the

Installation Manuals for RBS hardware replacement and hardware

extensions.

5/1551-EN/LZB 119 3312 Uae Rev A 1997-11-20 A-3

Appendix A

Table A-1. RBS 884 Customer Manuals

Customer Manual Product Number

RF Guidelines and Cell Design Data for AS 100 EN/LZB 119 2614

RF Guidelines and Cell Design Data for AS 123 EN/LZB 119 2614/1

RBS 884 Series Site Engineering Manual EN/LZB 119 2855

RBS 884 Macro 800 MHz Installation and Maintenance

Manual EN/LZB 119 2170

RBS 884 Macro 1900 MHz Installation and Maintenance

Manual EN/LZB 119 2713

RBS 884 DBC Installation and Maintenance Manual EN/LZB 119 2856

RBS 884 Micro Installation and Maintenance Manual EN/LZB 119 2221

RBS 884 Compact Installation and Maintenance Manual EN/LZB 119 2224

RBS 884 Macro 800 MHz Parts Catalog EN/LZB 119 2453

RBS 884 Macro 1900 MHz Parts Catalog EN/LZB 119 2784

RBS 884 DBC Parts Catalog EN/LZB 119 2857

RBS 884 Micro Parts Catalog EN/LZB 119 2454

RBS 884 Compact Parts Catalog EN/LZB 119 2455

RBS 884 Integration Guidelines for AS 100 EN/LZB 119 2786

RBS 884 Integration Guidelines for AS 123 EN/LZB 119 2785

The Job Procedures are listed in the RBS 884 Integration Guidelines.

A-4 5/1551-EN/LZB 119 3312 Uae Rev A 1997-11-20

Appendix B

User Feedback

1 Introduction . ................. B-3

2 Ordering of Customer Manuals . ........ B-3

3 Problem Solving ................ B-3

4 Trouble Reporting . . . ............ B-3

6/1551-EN/LZB 119 3311 Uae Rev A 1997-11-20 B-1

Appendix B

B-2 6/1551-EN/LZB 119 3311 Uae Rev A 1997-11-20

Appendix B

1 Introduction

This appendix provides information on ordering and trouble reporting for

the RBS 884 customer manuals.

2 Ordering of Customer Manuals

For ordering of RBS 884 customer manuals, please contact your Ericsson

account manager.

3 Problem Solving

If you have any problems with a radio base station in the RBS 884 series

that can not be solved by reading the manuals, please contact your nearest

Ericsson Technical Assistance Center (TAC).

4 Trouble Reporting

Please report any errors found in this manual to:

Ericsson Radio Systems, AR/SO

S-164 80 Stockholm

Sweden

e-mail: erarimpl@memo.ericsson.se

send e-mail as “Mime Compliant” (7–bits)

6/1551-EN/LZB 119 3311 Uae Rev A 1997-11-20 B-3

Appendix B

B-4 6/1551-EN/LZB 119 3311 Uae Rev A 1997-11-20

Appendix C

Internal Cables

1 Introduction . ................. C-3

2 One-Sector Sites ................ C-3

3 Two-Sector Sites ................ C-5

4 Three-Sector Sites . . . ............ C-7

5 Transceivers (TRXs) . . ............ C-9

7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05 C-1

Appendix C

C-2 7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05

Appendix C

1 Introduction

This appendix describes the internal cabling within each RBS cabinet.

All internal cables are installed at the factory.

The conﬁguration diagrams in this section show cabinets (main, and

primary), antenna conﬁgurations, and interconnections between cabinets.

The cabinets are shown with maximum equipment installed.

2 One-Sector Sites

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

Note: The TRX board in position 6 is used for DVER

Pos. 6

RX/TX

ANT 1 RX/TX

ANT 2

Figure C-1. One-Sector Site, One Cabinet, Two Antennas

7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05 C-3

Appendix C

Note: The TRX board in position 6 is used for DVER

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Pos. 6

To antenna terminals

on I/O connector plate

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

Figure C-2. One-Sector Site, One Cabinet, Four Antennas

C-4 7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05

Appendix C

3 Two-Sector Sites

Note: The TRX board in position 6 is used for DVER

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Pos. 6

Terminator

Main

Cabinet

Primary

Cabinet

EMRPB

AFS

TLINK

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 1 RX/TX

ANT 2

Figure C-3. Two-Sector Site, Two Cabinets, Main and Primary Cabinet have Two Antennas each

7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05 C-5

Appendix C

Note: The TRX board in position 6 is used for DVER

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

To antenna terminals

on I/O connector plate

Pos. 6

Power

Error

Status

Tx out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Pos. 6

Terminator

EMRPB

AFS

TLINK

Main

Cabinet

Primary

Cabinet

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

Figure C-4. Two-Sector Site, Two Cabinets, Main and Primary Cabinet have Four Antennas each

C-6 7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05

Appendix C

4 Three-Sector Sites

Note: The TRX board in position 6 is used for DVER

Main

Cabinet

Primary 1

Cabinet

Primary 2

Cabinet

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Pos. 6

Terminator

EMRPB

AFS

TLINK

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 1 RX/TX

ANT 2

Figure C-5. Three-Sector Site, each Cabinet has Two Antennas

7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05 C-7

Appendix C

Note: The TRX board in position 6 is used for DVER

Main Cabinet

Primary 1

Cabinet

Primary 2

Cabinet

EMRPB

AFS

TLINK

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

To antenna terminals

on I/O connector plate

Power

Error

Status

Tx out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Tx out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Power

Error

Status

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Pos. 6

Terminator

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

RX/TX

ANT 1 RX/TX

ANT 2

RX/TX

ANT 3 RX/TX

ANT 4

Figure C-6. Three-Sector Site, each Cabinet has Four Antennas

C-8 7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05

Appendix C

5 Transceivers (TRXs)

The transceiver cables RPM 513 977/00185 are installed as shown in

Figure C-7 on page C-9.

Note: The TRX board in position 6 is used for DVER

Cabinets illustrated are Main Cabinets, but the cabling is the same for Primary Cabinets.

Cabinet using Two Antennas

Cabinet using Four Antennas

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

To antenna terminals

on I/O connector plate

Pos. 6

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out Tx out

Power

Error

Status

RX/TX

ANT 1 RX/TX

ANT 2

TX IN 1

TX IN 2

TX IN 3

TX IN 4

RX/TX

ANT 3 RX/TX

ANT 4

To antenna terminals

on I/O connector plate

Pos. 6

Figure C-7. TRX Cable Connections for Main and Primary Cabinets

7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05 C-9

Appendix C

C-10 7/1551-EN/LZB 119 3311 Uae Rev PA4 1998-10-05

Appendix D

Conversion Table

1 Introduction . ................. D-3

2 Conversion Table ................ D-3

8/1551-EN/LZB 119 3312 Uae Rev A 1997-11-20 D-1

Appendix D

D-2 8/1551-EN/LZB 119 3312 Uae Rev A 1997-11-20

Appendix D

1 Introduction

This appendix contains a conversion table between some SI units and non

SI units.

2 Conversion Table

Table D-1. Conversion Table between SI Units and non SI Units

SI Unit Non SI Unit

1Nm 0.738 ft lbf (foot pound-force)

0.356 Nm 1 ft lbf

1kg 2.2 lb

0.45 kg 1 lb = 16 oz

0.305 m 1 ft = 12 inches

0.0254 1 inch

8/1551-EN/LZB 119 3312 Uae Rev A 1997-11-20 D-3

HARRIS KRC121106-1 User Manual PubTeX output 1998 10 06 2121

HARRIS CORPORATION PubTeX output 1998 10 06 2121

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