HARRIS KRC121106-1 User Manual PubTeX output 1998 12 03 1743

HARRIS CORPORATION PubTeX output 1998 12 03 1743

UserManual.wiki >

HARRIS >

KRC121106-1 User Manual >

PDF instruction manual HTML Version

1. Instruction maintenance manual
2. PDF instruction manual

PDF instruction 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 R1 1998-11-17

Table of Contents

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

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

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

3 Conventions Used in this 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 .......... 4-24

10 Setting the Unit Switches ............. 4-39

11 External Alarm Connections ........... 4-50

12 Site Inventory .................. 4-51

13 Equipment Power Up ............... 4-53

14 Cold Start-up .................. 4-56

15 Completing the Installation ............ 4-56

16 LED Indications ................. 4-57

17 Site Expansion .................. 4-62

18 RBS 884 Micro (1900 MHz) Cabinet Repainting . . 4-81

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 R1 1998-11-17 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 R1 1998-11-17

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) system.

This manual is intended for RBS site installation and site maintenance

personnel.

Before this manual 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 be available and tested.

•AC and DC voltage must be available.

•The antenna system must be installed and tested.

•Grounding system must be available.

When the radio base station equipment is 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).

This manual is divided into the following parts:

•Part 1, Introduction – provides a description of the contents of the

manual and how it can be used.

•Part 2, General Product Information – provides a general description

of an unconﬁgured base station. Speciﬁc Radio Base Station (RBS)

is provided in Part 3, Suystem Description.

0015-EN/LZB 119 3312 Uae Rev A 1998-11-17 1-1

Introduction

•Part 3, System Description – provides a description of the RBS 884

Micro (1900 MHz) equipment hardware and the available

conﬁgurations.

•Part 4, Installation – provides procedures for the installation and

powering up the RBS 884 Micro (1900 MHz) system.

•Part 5, Hardware Replacement – provides procedures for

troubleshooting and replacement procedures for critical components

of the RBS 884 Micro (1900 MHz) system.

•Part 6, Glossary of Terms – provides deﬁnitions of key terms used in

the manual.

•Part 7, Acronyms and Abbreviations – provides expanded versions of

all of the acronyms and abbreviations used in the manual.

•Appendix A, Document Overview – provides an overview of the

existing customer manuals for RBS 884 products.

•Appendix B, User Feedback – provides information on ordering and

trouble reporting for the RBS 884 customer manuals.

•Appendix C, Internal Cables – provides description of the internal,

factory installed cables within each RBS cabinet.

•Appendix D, Conversion Table – provides table for translating SI

units to American units.

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

Site Installation Documentation relating to the particular radio base station

site. Additional information is available in the RBS 884 Site Engineering

Manual.

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

presented.

3 Conventions Used in this Manual

The ﬁrst time an acronym or abbreviation appears in this 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.

1-2 0015-EN/LZB 119 3312 Uae Rev A 1998-11-17

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

3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 2-1

General Product Information

2-2 3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

General Product Information

1 Introduction

The General Product Information provides general information on

unconﬁgured radio base stations. See RBS 884 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

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

digital voice, control and monitoring purposes.

The hot repair capability allows replacement of defective units when

power is still applied.

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 that 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.

3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 2-3

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. See

Figure 2-1 on page 2-4.

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

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

This system operates at 824–894 MHz and provides up to 78 low power or

2-4 3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

General Product Information

medium 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 (Down Banded Cellular) 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 RBS 884 Micro products are used wherever local capacity or coverage

is required.

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 a 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 Multi Carrier Power Ampliﬁer (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 MCPA for higher output power in one cell. The MCPA is

a separate cabinet 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) can be provided with up to 26 transceivers and a total of 24

carriers. This provides 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

3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 2-5

General Product Information

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

blowers and a variable power heater 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 (1900 MHz) is a complete functional cell, with a 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 that is smaller than the

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

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

2-6 3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 RBS 884 Conﬁguration

The Group Switch (GS) at the MSC 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 A 1998-11-17 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 logical parts of the RBS 884 Micro (1900 MHz) are as follows:

•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 COP consists of Control and

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

consists of the Remote Multiplexer (REMUX), Signaling Terminal

Remote, Micro (STRM), Extension Module Regional Processor,

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

•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 MOP

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

and Compact, the MOP consists of TRX boards.

2-8 3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

General Product Information

•Antenna Near Part (ANP) – contains components associated with the

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

multicouplers, and bandpass ﬁlters. In the RBS 884 Macro the ANP

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 the RFTL,

MC, COMBFILT and CABCOMB boards. 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 main functions of the ANP are as follows:

– Combine multiple TRX output signals to a single Tx antenna

– Filter TX and RX signals

– Pre-amplify and distribute RX signals

– Protect TRXs from reﬂected power

– Provide isolation between the TRXs

– Calibrate and supervise the TRXs and associated RF components

•Support Part (SP) – provides general support, such as power supply

and cooling. The components of this part vary signiﬁcantly between

the product lines.

3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 2-9

General Product Information

2-10 3/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-1

System Descri tion

3-2 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

1 Introduction

The System Description part of this 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 sections. 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 are 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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-3

System Descri tion

–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.

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 Part 4 – Installation. 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

3-4 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

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

to two auxiliary primary cabinets, as follows:

•The 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).

•The 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.

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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-5

System Descri tion

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

3-6 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

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

CONVENIENCE

OUTLET

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

The power distribution box contains the following:

•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.

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-7

System Descri tion

12 354786 9 11 12 13

Power

Supply

Unit TRX

ANP/RFTL

TRX

REMUX

STRM

EMRPM

BLANK

PANEL

ALM

ECU

ANP/RFTL

PSU

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.

3-8 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

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:

– Supervise the reﬂected loss of the TX antenna

– Calibrate Receiver Signal Strength Indicator (RSSI)

– Calibrate dynamic power and measurement of output power

– Operate 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) to provide 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) to decode 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) to

provide 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 to allow 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).

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-9

System Descri tion

•One Alarm unit (ALM) to provide 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. The ALM is installed in slot 11 (10 BM).

•One Environment Control Unit (ECU) to provide 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.

Unused TRX slots must contain a dummy TRX

or RMU.

6 TRX Transceiver with

mobile veriﬁcation

functionality

The TRX in slot 6 is used as a Personal

Communications Services (PCS) or MVER 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.

3-10 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

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

ANP/RFTL

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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-11

System Descri tion

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 installed in slot 7 (8

BM).

•One Connector (CONN) Unit to relay 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) to

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

slot 9 (8 BM)

•One EMRPM Dummy Unitto allow 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) to provide a 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. The ALM is installed in slot 11 (10 BM).

•1 Environment Control Unit (ECU) 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.

3-12 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

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.

Unused TRX slots must contain a dummy TRX

or RMU.

6 TRX Transceiver with mobile

veriﬁcation functionality

The TRX in slot 6 acts as a Personal

Communication Services (PCS) or MVER for

uplink measurements.

7Blank

module

Dummy TRX The dummy TRX or RMU ensures 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 REMUX transmission unit for

a 24 channel (T1) or 32 channel (E1) 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.

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-13

System Descri tion

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 RBS 884 Site Engineering Manual or other applicable site

installation documents.

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 MVER

7 11 ALM

9 3 ANP

10 7 REMUX

3-14 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

The addresses of the EMRPM are set using a Double Inline Pack (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.

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 4 TRXs (carriers) for each antenna system that

provide 11 digital voice paths per sector.

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, TRX positions

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-15

System Descri tion

marked with an asterisk (*), 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 (MVER)

X* X* X*

3X X X*

X* X* X* X*

X X X X*

5 X* X* X* X* X*

* Indicates factory installed unit.

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

3-16 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

•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 “Hardware Replacement” part of the

Installation and Hardware Replacement Manual for further information on

the fan replacement procedure.

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-17

System Descri tion

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 TRXs, 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 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, dimension the TRX

units. 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: 110V 60 Hz or 230V 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

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

3-18 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

synchronization interconnections between cabinets are shown as DATA in

the following six conﬁguration diagrams.

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

RX/TX ANT A ANT 1

RX/TX ANT B ANT 2

TX ANT C ANT 3

TX ANT D ANT 4

PCM PCM P

The PCM transmission connection from the RBS to the MSC connects

through the PCM lightning 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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-19

System Descri tion

MAIN

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

●●

TX/RX TX/RX

Two-Antenna

ANP

Figure 3-7. One-Sector Site – One Cabinet with Two External TX/RX Antennas

MAIN

CABINET

AC POWER (110V/230V)

PCM (T1/E1)

●●

TX/RX TX/RX

Two-Antenna

ANP

Figure 3-8. One-Sector Site – One Cabinet with Two Cabinet–Mounted 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

3-20 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

MAIN

CABINET

AC POWER 110V/230V

PCM (T1/E1)

●●

TX TX/RX

●●

TX/RX TX

Four-Antenna

ANP

Figure 3-9. One-Sector Site – One Cabinet with Four External 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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-21

System Descri tion

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 – Each Cabinet with Two External 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. Two-Sector Site – Each Cabinet with Two Cabinet-Mounted 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

3-22 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

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 – Each Cabinet with Four External 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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-23

System Descri tion

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. Three-Sector Site – Each Cabinets with Two External 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. Three-Sector Site – Each Cabinet with Two Cabinet-Mounted 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.

3-24 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

System Descri tion

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. Three-Sector Site – Each Cabinet with Four External 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 Micro (1900 MHz) base station becomes a separate Extension

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

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

Additional Control Signaling Link (CLC) extraction timeslots are 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 the RBS 884 Site

Engineering Manual.

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

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

4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 3-25

System Descri tion

MSC

PCM (T1/E1)

Base Station 1 Base Station 2 Base Station 3

Figure 3-16. Cascade Conﬁguration

3-26 4/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 .......... 4-5

3.2 ESD Wrist Strap ............. 4-5

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 ........... 4-21

8.5 Installation on a Roof ........... 4-24

9 Cable and Power Connections ......... 4-24

9.1 Grounding ................ 4-24

9.2 Installing Batteries ............ 4-25

9.3 Installing AC Power ............ 4-29

9.4 Cable Installation ............. 4-31

10 Setting the Unit Switches ............ 4-39

10.1 Prerequisites and Tools .......... 4-40

10.2 REMUX Switch Settings ......... 4-41

10.3 EMRPM Switch Settings ......... 4-49

11 External Alarm Connections .......... 4-50

12 Site Inventory .................. 4-51

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-1

Installation

12.1 Prerequisites ............... 4-51

12.2 Site Inventory Procedure ......... 4-52

13 Equipment Power Up .............. 4-53

13.1 Prerequisites and Test Equipment ..... 4-53

13.2 Power-Up Procedure ........... 4-54

14 Cold Start-up .................. 4-56

15 Completing the Installation ........... 4-56

15.1 Prerequisites and Tools .......... 4-57

15.2 Installation Completion Procedure ..... 4-57

16 LED Indications ................. 4-57

16.1 PSU LEDs ................ 4-58

16.2 TRX LEDs ................ 4-58

16.3 REMUX LEDs .............. 4-59

16.4 ANP (RFTL) LEDs ............ 4-59

16.5 STRM LEDs ............... 4-60

16.6 ALM LEDs ................ 4-60

16.7 EMRPM LEDs .............. 4-60

16.8 ECU LEDs ................ 4-61

17 Site Expansion ................. 4-62

17.1 Adding TRX Boards ........... 4-62

17.2 Adding Cabinets ............. 4-67

17.3 One-Sector Sites ............. 4-71

17.4 Two-Sector Sites ............. 4-73

17.5 Three Sector Sites ............ 4-76

18 RBS 884 Micro (1900 MHz) Cabinet Repainting . 4-81

18.1 Required Materials and Tools ....... 4-81

18.2 Cabinet Surface Preparation ....... 4-81

18.3 Cabinet Painting ............. 4-82

4-2 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 4-82).

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 in excess of 100V is used in the RBS 884 Micro (1900 MHz).

Observe safety precautions. Contact with voltage as low as 50V can result

in death.

Observe the following safety precautions:

•Do not touch high voltage connections when working on energized

equipment.

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

manual is performed.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-3

Installation

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

removed from the cabinet.

•Perform all installation and repair procedures in the order presented.

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.

Turn off the transmitters at the MSC 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.

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

4-4 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

disposal of environmentally hazardous waste. Investigate the local

regulations that are applicable to you and comply with them.

2.5 Heavy Loads

Warning!

Incorrectly lifting heavy loads can result in severe injury to persons and

damage to the equipment.

A fully equipped RBS 884 Micro (1900 MHz) cabinet weighs 105 kg (230

lbs). Ericsson recommends two persons be present during the maintenance

activities where heavy lifting is required.

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. 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 an

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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-5

Installation

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 4-1 on page 4-7.

4-6 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Table 4-1. Tools List

Product Number Description

N/A Metric Tape Measure1

N/A Horizontal/Vertical Level1

(for wall mounting)

N/A Pen

N/A Drill1

N/A Drill Bit1(appropriate size for use in wall mounting

procedure)

LYB 250 01/14 ESD Wrist Strap and Cable2

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)

N/A AC Voltmeter1

(for checking the line voltage)

N/A 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 right-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.

Rooftop locations require additional considerations and approvals.

5.2 Public Safety

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

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

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-7

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 protective 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 runoff 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 230 lbs (105 kg).

5.4 Accessibility

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

Do not install the cabinet within 42.0 inches (1067 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 area or installation

site.

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

Warning!

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

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

4-8 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Always use proper lifting equipment, such as a 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

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-9

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 delivery of materials, check the packing slip to verify that all

boxes and crates are received.

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. Remove the tamper-resistant wrench from the plastic bag taped to

the outside of the Main Cabinet.

3. Use the 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.

4. 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.

5. 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.

6. Check the packing slip and verify all parts ordered are received.

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

4-10 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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, such as a forklift or crane. Attach any lifting equipment

to lifting ears located on rear of cabinet. Check that 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, do 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 are 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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-11

Installation

8 Cabinet Installation

This section describes procedures 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. Follow all safety precautions described in Section

7.2.3 on page 4-11.

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 Appropriate Size Drill Bit

N/A Socket Wrench

N/A Ratcheting Box Wrench

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.

4-12 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

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

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

from beneath the pad.

Perform the following to install the RBS 884 Micro (1900 MHz) on a pad:

1. Clean all litter from the foundation pad surface.

2. Dress the cable or conduit to avoid interference 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

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-13

Installation

Bottom view of pedestal base

showing mounting pattern

for securing to concrete pad

Front of Pedestal

10.75 in

(273.05 mm)

2.63 in

(66.80 mm)

3.62 in

(91.95 mm)

1 in

(25.4 mm)

22.00 in

(558.80 mm) 1.00 in

(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 applicable locally

approved safety equipment. 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. Check that the

cabinet is aligned with the pedestal.

4-14 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Warning!

Until the mounting hardware secures the cabinet to the pedestal base,

the cabinet is unstable and could fall off the base causing injury or

equipment damage. Make sure the cabinet is safely supported until it

is secured to the pedestal base.

Using the tamper-resistant wrench, remove the front panel on the

pedestal base. Secure the cabinet to the pedestal base using the ten

1/2”-13 bolts, ﬂat washers, and lock washers. Tighten all bolts

securely.

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

cabinet (optional).

10. Install any cabinet mounted antennas.

8.3 Installation on a Pole

Perform the following to install the RBS 884 Micro (1900 MHz) 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 required. 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-Mount Kit.

2. Identify the mounting bracket, straps, strap tension brackets, and

mounting hardware. A fully assembled Pole Mount is shown in

Figure 4-4 on page 4-16.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-15

Installation

Mounting Strap

Pole Mount Bracket

L-Bracket

T-Bracket

Figure 4-4. Pole-Mount Assembly

3. Attach the mounting straps to the strap tension brackets using two

screws, two lock washers, and two ﬂat washers. See Figure 4-5 on

page 4-17 for a close-up of the bracket assembly.

4-16 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Pole Mounting Strap

Strap Tension Bracket

Left Side of Mount

Pole Mount

Right Side of Mount

Figure 4-5. Pole-Mount Bracket Assembly

4. Slide the assembled straps through the rear of the bracket and out the

left side holes. Ensure the tension bracket holes are facing the right

side of the bracket. See Figure 4-5 on page 4-17.

5. For each tension bracket, install two carriage bolts through the right

side of the pole-mount bracket and through the strap tension bracket.

6. Slip a washer, a lock washer, and a nut on the ends of the carriage

bolts. Do not tighten nuts on carriage bolts.

7. Place the pole-mount bracket on the pole at the desired height and

wrap mounting straps around the pole.

8. Insert loose end of strap through strap hole on right side of bracket.

Pull strap tight and attach to front strap mounting tab. See Figure

4-6 on page 4-18.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-17

Installation

Left Side of Mount

Pole Mount

Right Side of Mount

Figure 4-6. Pole-Mount Strap Attachment

9. Ensure the bracket is level and tighten the nuts on the carriage bolts

using a ratcheting box wrench. See Figure 4-7 on page 4-19.

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

4-18 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Pole-Mount Assembly

with Straps Pole-Mount Assembly

with Bolts

Figure 4-7. Pole-Mount Assembly Installations

10. Using metal cutting shears or a saw, remove the excess strap.

11. Loosely attach the L-bracket to the pole mount assembly using two

screws, two lock washers, and two ﬂat washers. See Figure 4-4 on

page 4-16 for the position of the L-bracket on the pole mount

assembly.

12. If required, attach the cabinet mounted antenna bracket to the

cabinet. The bracket is installed behind the lifting ears on the rear of

the cabinet.

13. 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.

14. Secure the cabinet door before lifting the cabinet.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-19

Installation

15.

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

stand, or pass under a cabinet while it is being lifted.

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

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

mounting bracket. See Figure 4-8 on page 4-20.

Figure 4-8. Cabinet Installed on Pole-Mount Assembly

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

17. Attach the L-bracket to the bottom of the cabinet using two screws,

two lock washers, and two ﬂat washers. Tighten all L-Bracket

screws with the tamper-resistant wrench.

18. Install any cabinet mounted antennas to the antenna bracket.

4-20 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

8.4 Installation on a Wall

Perform the following to install the RBS 884 Micro (1900 MHz) 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. 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-Mount Kit.

Mounting Bracket

T-Bracket

L-Bracket

Figure 4-9. Wall-Mount Assembly

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-21

Installation

3. Identify the mounting bracket, and mounting hardware. A fully

assembled Wall Mount Assembly is shown in Figure 4-9 on page

4-21.

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 4-22 is a list of the suggested anchoring hardware.

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 4-10 on page 4-22. Level the bracket before tightening the

bolts.

Figure 4-10. Wall-Mount Assembly Installed on Wall

6. Loosely attach the L-bracket to the wall mount assembly using two

screws, two lock washers, and two ﬂat washers. See Figure 4-9 on

page 4-21 for the position of the L-bracket on the wall mount

assembly.

7. If required, attach the cabinet mounted antenna bracket to the

cabinet. The bracket is installed behind the lifting ears on the rear of

the cabinet.

4-22 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

8. 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.

9. Secure the cabinet door before lifting the cabinet.

10.

Warning!

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.

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

12. Attach the L-bracket to the bottom of the cabinet using two screws,

two lock washers, and two ﬂat washers. See Figure 4-11 on page

4-23. Tighten all L-Bracket screws with the tamper-resistant wrench.

Figure 4-11. Wall Mounted cabinet

13. Install any cabinet mounted antennas to the antenna bracket.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-23

Installation

8.5 Installation on a Roof

Perform the following to install the RBS 884 Micro (1900 MHz) 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 RBS 884 Site Engineering

Manual for further information on a roof mounted cabinet.

9 Cable and Power Connections

9.1 Grounding

Warning!

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

and wear all appropriate locally 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 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.

4-24 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

9.1.1 Perimeter Ground (Pad-Mount only)

1. Before installing cabinet, ensure the ground ring is installed and all

antennas are grounded as described in the RBS 884 Site

Engineering Manual.

2. Install coaxial transmission cable to the RBS 884 Micro (1900

MHz). The 50 ohm cable connects to the lightning surge

suppressors on the earthing plate.

3. 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, take steps to isolate circuit and remove current from cables.

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.

9.2 Installing Batteries

DANGER!

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

when working around the battery enclosure or other internal components.

Warning!

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 MAIN circuit breaker (40A) to ensure no

power is 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.

All batteries are conﬁgured with steel cases for applications where

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

Perform the following steps to install the batteries into the tray and

connect the batteries to the system:

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-25

Installation

Note: The DC power supply ﬂoat voltage is calibrated for +27.0 to

+27.6 Vdc at the batteries. The ﬂoat is set at the factory and is

not adjusted by the user.

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

Distribution Box to OFF. See Figure 4-12 on page 4-27.

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 4-13

on page 4-28. Attach the hold-down bracket to the battery tray.

Note: Torque battery bolts to 50 in-lbs maximum.

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

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

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

4-13 on page 4-28

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

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

battery two. See Figure 4-13 on page 4-28.

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 one.

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

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

white wire to the negative terminal of battery two.

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.

4-26 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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

CONVENIENCE

OUTLET

Figure 4-12. AC/DC Distribution Box

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-27

Installation

Copper Strap

Battery 1

Battery 2

Battery Tray

Battery Heater

Failed Battery

Sensor Connector

Power Connector

Figure 4-13. Battery Installation in Cabinet

4-28 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 only be performed by

qualiﬁed personnel.

DANGER!

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. Figure 4-14 on page

4-29 shows the location of the AC/DC Distribution Box in the

cabinet.

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 4-14. AC/DC Distribution Box

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-29

Installation

Before installation, ensure that the AC ground system is installed. The

ground system must be in compliance with local practices and building

codes. Refer to the RBS 884 Site Engineering Manual for more

information.

To install AC power, Perform the following:

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

2. The opening in the bottom of the cabinet is sealed with a conduit

ﬁtting to prevent air and water leakage into the cabinet. The conduit

ﬁtting has threads that extend through the bottom of the cabinet.

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

Distribution Box.

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

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

6. Remove clear cover from rear of circuit breakers.

7. Connect the L1 (Line 1) wire to AC main breaker bus (line bus)

inside AC/DC Distribution Box. The minimum recommended wire

size is 8 AWG (type THHN or equivalent.) Refer to Figure 4-15

on page 4-31.

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

Distribution Box.

9. Bring the external AC conduit up to the bottom of the cabinet and

connect it to the threaded internal AC conduit ﬁtting.

4-30 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Neutral Bus

Ground Bus

Line Bus

Figure 4-15. AC/DC Distribution Box

9.4 Cable Installation

Each RBS 884 cabinet arrives on site with internal cables pre-installed.

These cables are described in the Internal Cables appendix in this manual.

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

procedure for one of the following types of installation:

•Pedestal (Pad) Mount, Section 9.4.1 on page 4-32

•Pole Mount, Section 9.4.2 on page 4-38

•Wall Mount, Section 9.4.3 on page 4-39

•Roof Mount, Section 9.4.4 on page 4-39

•Site Expansion, Section 17 on page 4-62

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-31

Installation

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.

To install cables in a cabinet with a pedestal mount, perform the following:

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 4-17 on page 4-36

Note: This cable installation procedure is for above ground

conduit routing. Refer to the RBS 884 Site Engineering

Manual for information about below ground conduit

routing.

2. Route the T1(E1) conduit into the base of the cabinet. See Figure

4-17 on page 4-36 and Figure 4-18 on page 4-37.

3. Route the antenna cables into the base of the cabinet. See Figure

4-17 on page 4-36 and Figure 4-18 on page 4-37.

Note: When running antenna cables through the pedestal base

knockouts, protect the cables with strain relief

grommets or other appropriate materials.

4. Verify that the AC power conduit and earth ground have been

routed into the base of cabinet. See Figure 4-17 on page 4-36 and

Figure 4-18 on page 4-37.

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 4-18 on page 4-37.

6. Bond and ground the T1(E1) drop wires according to local

practices before installing them into the cabinet.

4-32 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 4-16 on

page 4-35 for further information on this procedure. See Figure 4-

19 on page 4-38 for a close-up view of the T1(E1) Primary Surge

Suppressor and Table 4-5 on page 4-33 for information on the

input connections. 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. 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. 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.

9. 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.

10. If testing or if a talk pair is needed, insert test leads into the hex

nut on the appropriate activator.

11. To reinstall wires, trim the wire ends and split the drop wire leads

approximately two inches and terminate according to the above

procedure.

12. After wiring, keep all activators in the down position for good

housekeeping.

13. After all cables are installed, turn on the AC power.

14. Watch the Power Light Emitting Diodes (LEDs) on each board and

verify the unit is operating properly. Consult the troubleshooting

section in the Hardware Replacement part of this manual for units

that are malfunctioning.

Table 4-5. T1(E1) Input Connections to Primary Surge Suppressor

Terminal No.

REMUX

Connector

Port

T1(E1) Cable T1(E1) Pair

No. Wire

1 (white) PCM/Prim Transmit to

Network

1Tip

1 (orange) PCM/Prim Transmit to

Network

1Ring

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-33

Installation

Table 4-5. T1(E1) Input Connections to Primary Surge Suppressor (Continued)

2 (white) PCM/Prim Receive from

Network

2Tip

2 (orange) PCM/Prim Receive from

Network

2 Ring

3 (white) PCM/Sec Transmit to

Network

1Tip

3 (orange) PCM/Sec Transmit to

Network

1 Ring

4 (white) PCM/Sec Receive from

Network

2Tip

4 (orange) PCM/Sec Receive from

Network

2 Ring

5 (white) Not used

5 (orange) Not used

Table 4-6. T1 Output Connections to Primary Surge Suppressor

RJ45 Conn Pin No. T1(E1) Cable T1(E1) Pair

No. Wire

J1 5Transmit to

Network

1Tip

J1 4Transmit to

Network

1Ring

J1 1 Receive from

Network

2 Ring

J1 2Receive from

Network

2Tip

J2 5Transmit to

Network

1Tip

J2 4Transmit to

Network

1Ring

J2 1Receive from

Network

2Ring

J2 2Receive from

Network

2Tip

4-34 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Figure 4-16. Terminating Wires in T1 Surge Protector

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-35

Installation

Antenna 3

Primary 2Primary 1

Antenna 2

Antenna 1

Antenna 4

AC Power

DC Battery

Back-Up

T1(E1) Line

Cabinet

Ground

Right Side

HOLE DIAMETERS

Primary 1 and 2

Antennas

Power

35.05

28.70

12.70

mm inches

1.38

1.13

.50

Cabinet Ground

T1(E1) Line

35.05 1.38

Figure 4-17. Pedestal Mount

4-36 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Antenna 4

Antenna 3

Antenna 2

Antenna 1

AC Power

External

Battery

PCM T1(E1)

Primary 1

Primary 2

Note: Conduit openings in I/O plate fit 3/4" and 1"

liquid-tight flexible conduit.

Battery

Compartment

(2 batteries)

Fans (4)

Backplanes

AC/DC Power

Subrack

with Plug-in

Units

Air Filter

Access Panel

Heater

Primary T1(E1) Surge

Suppressor

Earth ground

connections

below I/O plate

Figure 4-18. Cabinet I/O Plate

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-37

Installation

T1(E1) Primary Surge Suppressor

12345

Battery

Compartment

(2 batteries)

Fans (4)

Backplanes

AC/DC Power

Subrack

with Plug-in

Units

Air Filter

Access Panel

Heater

Ground Plate

Figure 4-19. T1(E1) Primary 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 and 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 section in the Hardware

Replacement part of this manual for units that are malfunctioning.

4-38 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

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 and 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 in the Hardware

Replacement part of this manual that are malfunctioning.

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. Refer to the speciﬁc cable installation instructions

in this section for pedestal, pole, or wall mountings.

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 part of this manual.

The units are shown in Figure 4-20 on page 4-40.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-39

Installation

PCM

Test

TLINK

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

Slot for Unit

Extractor Tool

REMUX

Unit EMRPM

Unit

REMUX

Unit

NOTE: Before inserting Unit Extractor Tool,

remove extractor hole plug and set aside. Reinstall

plug after unit removal.

Figure 4-20. Cabinet Units for Switch Settings (Example with a Main Cabinet)

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

4-40 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

10.1.2 Tools

The tools shown in Table 4-7 on page 4-41 are required for setting unit

switches.

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

Torx Bit TX10

Torque Wrench

Unit Screws

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

Figure 4-21. Torque Wrench with Torx TX10 Bit

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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-41

Installation

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 4-20 on page 4-40. Save the extractor hole plug

and replace plug after installing the REMUX unit.

4. Locate the eight-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 4-22 on page 4-42. The line impedance can be found

in the Conﬁguration Data in the Site Installation Documentation.

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: This example shows the REMUX set for 100 ohm line impedance (T1)

Figure 4-22. 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 Figure

4-22 on page 4-42), the value is 0 (zero).

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 4-23 on

page 4-43.

•If impedance is used (for E1 transmission, and T1 Federal

Communications Commission [FCC] Part 68, Option A), see

Figure 4-24 on page 4-43.

Note: For distances exceeding 40 meters, customer

supplied CSU should be used.

4-42 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

PCM Primary Line Specification for T1 Short Haul (SH)

Top

12345678

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)

This example shows the REMUX set for a T1 Short Haul line

up to 40 meters in length, connected to PCM Primary.

Note:

Figure 4-23. Settings for the PCM Primary Line Speciﬁcation, T1 Short Haul

Note: This example shows the REMUX set for an E1 line with

120 ohm impedance, connected to PCM Primary.

1 0 0 1

Top

12345678

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 4-24. 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

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-43

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 4-25 on

page 4-44.

•If impedance is used (for E1 transmission, and T1 FCC Part

68, Option A), see Figure 4-26 on page 4-45.

Note: For distances exceeding 40 meters, customer

supplied CSUs should be used.

1 0 1 1

Top

12345678

Front

PCM Secondary Line Specification for T1 Short Haul (SH)

This example shows the REMUX set for a T1 Short Haul line

up to 40 meters in length, connected 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 4-25. Settings for the PCM Secondary Line Speciﬁcation, T1 Short Haul

4-44 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

PCM Seconday Line Specification for E1 and T1

Top

12345678

Front

1 0 0 1

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 4-26. Settings for the PCM Secondary Line Speciﬁcation, E1 and T1

9. Set the PCM primary line code and frame mode, as shown in Figure

4-27 on page 4-45, in accordance with the Conﬁguration Data in the

Site Installation Documentation.

PCM Primary Line Code and Frame Mode

Top

12345678

Front

This 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 = 0 or 1)

= Double Frame (DF)

= Cyclic Redundancy Check

(CRC) Multi Frame

= Automatic Adaptation to PCM

(X = 0 or 1)

Figure 4-27. Setting for PCM Primary Line Code and Frame Mode

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-45

Installation

10. Set the switch to enable or disable the PCM secondary line for

cascading, as shown in Figure 4-28 on page 4-46 in accordance with

the Conﬁguration Data in the Site Installation Documentation.

PCM Secondary Line Cascading

= Cascading enabled

= Cascading disabled

Top

12345678

Front

Note: This example shows the REMUX set to enable the

PCM Secondary line for cascading.

Figure 4-28. Enabling/Disabling the PCM Secondary Line for Cascading

11. For an E1 PCM line, select the timeslot (TS) for Control signaling

Link (CLC) extraction, as shown in Figure 4-29 on page 4-47 in

accordance with the Conﬁguration Data in the Site Installation

Documentation.

4-46 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

CLC Extraction Timeslot for E1

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

12345678

Front

Timeslot 16 (TS 16)

16 8

Note: This example shows the selection of timeslot 16 for

CLC extraction (for an E1 line).

Figure 4-29. Setting the CLC Extraction Timeslot for E1

12. For a T1 PCM line, select the timeslot (TS) for Control signaling

Link (CLC) extraction, as shown in Figure 4-30 on page 4-48, in

accordance with the Conﬁguration Data in the Site Installation

Documentation.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-47

Installation

CLC Extraction Timeslot for T1

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

12345678

Front

DIP switch values 0 - 23 = TS 1 - 24

Normal timeslot is TS 9

Note: This example shows the selection of timeslot 9 for

CLC extraction (for a T1 line).

Figure 4-30. 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 4-31 on page 4-48 in accordance

with the Conﬁguration Data in the Site Installation Documentation.

PCM Jitter and Wander Limit

= J/W limit 138 Unit Intervals (UI)

= J/W limit 28 Unit Intervals (UI)

Top

12345678

Front

J/W = 138 UI

Figure 4-31. Setting the PCM Line Jitter and Wander Limit

14. Set the frequency of operation for 1900 MHz as shown in Figure

4-32 on page 4-49.

4-48 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Frequency Selection

= 1900 MHz

= 800 MHz

Top

12345678

Front

1900 MHz

Figure 4-32. 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 to 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

Figure 4-33 on page 4-50, 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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-49

Installation

Main

Cabinet Primary 1

Cabinet Primary 2

Cabinet

Top

+= 5

Top

1= 1

Top

+= 3

Figure 4-33. 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 Alarm Connections

The RBS 884 Micro (1900 MHz) provides four customer deﬁned external

alarm connections. These connections are available on a terminal block

located on the lower right wall inside the cabinet and connect to the ALM

board. Each alarm is activated by a dry contact closure (either normally

open or normally closed). See Figure 4-34 on page 4-51.

4-50 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

}

Alarm 10

Alarm 11

Alarm 12

Alarm 13

Customer Alarm

Connections

Alarm 10

(pins 11 & 31)

Alarm 11

(pins 12 & 32)

Alarm 12

(pins 13 & 33)

Alarm 13

(pins 14 & 34)

To ALM Board

External Alarm

Terminal Block

is Located on

Lower Right Wall.

Figure 4-34. Customer Deﬁned External Alarm Connection Terminal Block

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, Section 8 on page 4-12

•Grounding, Section 9.1 on page 4-24

•Setting of switches, Section 10 on page 4-39

•Cable installation, Section 9.4 on page 4-31

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-51

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 located on its front panel, as shown in Figure

4-35 on page 4-52, indicating its product number and revision state.

A53047P963 99w03 A53

P/ KRC 121 10/4 R1A

Product

Number R-State

Serial

Number

Figure 4-35. Unit Product Label

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 4-8 on page 4-52.

Table 4-8. RBS 884 Micro (1900 MHz) Units

Product Number Unit

HRB 102 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)

4-52 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Table 4-8. RBS 884 Micro (1900 MHz) Units (Continued)

Product Number Unit

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.

13.1 Prerequisites and Test Equipment

13.1.1 Prerequisites

The following activities must be completed for each cabinet before power

can be applied:

•Mounting, Section 8 on page 4-12

•Grounding, Section 9.1 on page 4-24

•Setting of switches, Section 10 on page 4-39

•Cabling, Section 9.4 on page 4-31

•Connecting AC voltage, Section 9.3 on page 4-29

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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-53

Installation

13.2 Power-Up Procedure

AC Power Connection

1. Verify the AC CONNECTED lamp on the front panel of the AC/DC

distribution box is ON.

2. Position the following circuit breakers on the front panel of the AC/

DC distribution box to ON in the following sequence (see Figure

4-36 on page 4-54 for the location of the circuit breakers).

•Main

•PSU

•ECU

•FANS

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 4-36. Cabinet Circuit Breakers on AC/DC Distribution Box

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.

4-54 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

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" section in the

Installation and Hardware Replacement Manual for information on

detecting faulty units.

6. Check that the green LED on each of the units in the cabinet is on

(see Figure 4-37 on page 4-55).

Main Cabinet

Primary Cabinet

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

ECU

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

Power

Error

Status 1

Status 2

CONN

PSU

AC Main

DC Output

Current Limit

ECU

Figure 4-37. 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 “Hardware Replacement” part of the Installation

and Hardware Replacement Manual.

8. Check that none of the red Error LEDs is on (see Figure 4-37 on

page 4-55).

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-55

Installation

9. If any of the red Error LEDs are on or ﬂashing continuously, replace

the unit in accordance with the “Hardware Replacement” part of the

Installation and Hardware Replacement Manual.

10. Repeat Step 1 on page 4-54 to Step 9 on page 4-56 for each cabinet.

11. Inform the MSC operator that the unit has been replaced and is ready

to be tested.

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.

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 to the Subrack Power Bus.

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.

The ECU Cold Start error code (C0) does appear on the ECU LED display.

15 Completing the Installation

This section describes the general housekeeping duties required to

complete the installation.

4-56 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 4-53.

15.1.2 Tools

A tie-wrap tool is required to complete the “Installation Completion

Procedure.”

15.2 Installation Completion Procedure

This procedure describes the general housekeeping duties required to

complete the base station installation.

General housekeeping

1. Verify that all cables, except antenna and ground, enter the cabinet

through conduit. The conduit must be terminated at the bottom of

the cabinet at the locations shown in Figure 4-18 on page 4-37.

2. Secure internal cables in cable trays.

3. Trim any tie-wrap ends to within 1/8” of the wrap.

4. Verify that all activators on the Primary T1/E1 Surge Protector are in

the down position.

5. 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. Refer to Figure 4-38 on page 4-58 for the

location of LEDs on a TRX unit.

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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-57

Installation

✚

Tx out

POWER

ERROR

STATUS

✚

TRX

1900

POWER

ERROR

STATUS

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

Figure 4-38. LED on a TRX

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

4-58 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

•Yellow Status LED

OFF: No PCM signal is 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

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 (2)

OFF: No PCM signal is 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 is present on the primary interface

•Green Power LED

ON: Indicates the ANP (RFTL) is powered

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-59

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: Signaling Terminal

Central (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

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

4-60 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

•Yellow Status 2 LED

OFF: Turned off by APZ at EMRPM reset, at restart, and when all

devices are blocked

ON: Turned on when at least one device is deblocked but all

individuals are blocked

FLASHING: Indicates 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 4-9 on

page 4-61).

Table 4-9. ECU Error Codes

Error Code Description

A0 Temperature shutdown alarm

A1 Single fan alarm

A2 Multiple fan alarm

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

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-61

Installation

Table 4-9. ECU Error Codes (Continued)

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

An RBS 884 Micro (1900 MHz) can be expanded by adding the following:

•TRXs to one or more of the cabinets (see Section 17.1 on page 4-62).

•One or two Primary Cabinets (see Section 17.2 on page 4-67).

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

17.1 Adding TRX Boards

To increase call handling capacity within a sector, replace the base

station’s RMUs with TRXs.

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 4-10

on page 4-63, Figure 4-39 on page 4-63, Figure 4-40 on page 4-64, and

Figure 4-41 on page 4-64.

4-62 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Table 4-10. 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 4-39. Unit Extractor Tool (extracting an RMU)

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-63

Installation

Torx Bit

TX10

Torque Wrench

Unit Screws

Power

Error

Status

Tx out

TRX

Figure 4-40. Torque Wrench with Torx TX10

Torque Wrench SMA Tool

SMA Connector

Figure 4-41. Torque Wrench with SMA Tool

4-64 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

17.1.2 TRX Positions

See Figure 4-42 on page 4-65 for TRX positions. TRXs are added to the

cabinet in the following positions.

•Third TRX in slot 4

•Fourth TRX in slot 5

12 3 54786 9 11 12 13

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

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 4-42. Unit Positions

17.1.3 Installation Procedure

Perform the following procedure to install a TRX unit.

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.

See Section 3 on page 4-5 for 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

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"

section in the Installation and Hardware Replacement Manual for

information on detecting faulty units.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-65

Installation

6. The cables are installed as shown in Figure 4-43 on page 4-67.

Choose the appropriate example in the 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. Inform the MSC operator that the installation is complete.

4-66 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Note: The TRX board in position 6 is used as a Digital Verification Module (DVER)

Cabinets illustrated are Main Cabinets, although the cabling is the same for Primary Cabinets.

Cabinet using Two Antennas

Cabinet using Four Antennas

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

To antenna terminals

on I/O connector plate

Pos. 6

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 4-43. 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

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-67

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 knockouts 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

knockouts.

A diagram of cable routing for collocated cabinets is shown in Figure 4-44

on page 4-69.

4-68 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 4-44. RBS 884 Micro (1900 MHz) 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:

•AFS Cable (six meters) with RJ45 connectors

•TLINK Cable (six meters) with RJ45 connectors

•EMRPB Cable (six meters)

•Two Insulation Displacement Connection (IDC) connectors

•Two IDC connector backshells

•T-Handle Connector Tool (for seating wires) See Section 17.2.2 on

page 4-70 for information on how to use the T-Handle Connector

tool.

The EMRPB cable transfers control data between the STRM in the Main

cabinet and the CONN in the Primary cabinet. See Table 4-11 on page

4-70 and Figure 4-45 on page 4-71 for cable connector assembly.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-69

Installation

Table 4-11. Extension Cable Connector Signals and Pin Connections

Connector A

(Pin No.) Signal Connector B

(Pin No.)

1 CLKM+ (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

9CLKM- (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.

17.2.1 Required Materials and Tools

17.2.1.1 Materials

The Extension Cabinet Cable Set — NTM 201 1807 is used to connect

collocated cabinets.

Install the cables in the order they appear in the table enclosed with each

cable kit.

17.2.1.2 Tools

The T-Handle connector tool that is supplied with the Extension Cabinet

Cable Set is the only tool required for intercabinet cabling. Refer to Section

17.2.2 on page 4-70 for information on the T-Handle connector tool

17.2.2 Using the T-Handle Connector Tool

The following procedure explains how to use the T-Handle connector tool

to insert individual, unstripped wires into the IDC connectors. The T-

4-70 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

Handle connector tool features a blade that is used to push the wire

squarely into the contact and to crimp the wire insulation area, thus

providing a reliable connection.

1. Support the wire termination side of the IDC connector on a block

or other suitable ﬂat surface and position the IDC connector so that

the wire termination area of the contacts face upward.

2. Position the unstripped wire over the desired contact with the wire

butting against the plastic shoulder and not extending past it.

3. Place the tool on the wire as shown in Figure 4-45 on page 4-71.

Make sure that the arrow on the tool handle points toward the wire

termination side of the IDC connector.

4. Press straight down on the tool handle to insert the wire.

Note: To avoid damage to the tool, the wire, or the contact,

do not apply pressure at an angle, and do not use

excessive pressure.

5. Remove the tool and inspect the contact for proper wire insertion.

Repeat the procedure if necessary.

Cabling wires

Arrow faces wire

side of connector

Tool positioned on wire

Figure 4-45. Cable Assembly with Cable Connector Tool

17.3 One-Sector Sites

Before beginning 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 following cabinet conﬁgurations are examples of fully conﬁgured sites.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-71

Installation

17.3.1 One-Sector Sites, One Cabinet with Two Antennas

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

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

PSU

Figure 4-46. One-Sector Site, One Cabinet with Two Antennas

17.3.2 One-Sector Sites, One Cabinet with 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

Pos. 6

To antenna terminals

on I/O connector plate

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 4-47. One-Sector Site, One Cabinet with Four Antennas

4-72 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

17.4 Two-Sector Sites

Before beginning 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.

EMRPB, TLINK, and AFS 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: Route the EMRPB cable through the conduit and use the

connector tool (see Figure 4-45 on page 4-71) to terminate to

an IDC connector. The signal and pin connections for the IDC

connector are shown in Table 4-11 on page 4-70.

17.4.1 Two-Sector Site, Each Cabinet with 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 Cabinet

Cable Set (NTM 201 1807). See Figure 4-48 on page 4-74 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 interface

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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-73

Installation

Note: The TRX board in position 6 is used for DVER

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

To antenna terminals

on I/O connector plate

Main

Cabinet

Terminator

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

Primary

Cabinet

To antenna terminals

on I/O connector plate

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

PSU

Figure 4-48. Two-Sector Site, Each Cabinet with Two Antennas

4-74 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

17.4.2 Two-Sector Site, Each Cabinet with 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 4-49 on page 4-76 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 interface

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.

1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 4-75

Installation

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

Main

Cabinet

Note: The TRX board in position 6 is used for DVER

EMRPB

AFS

TLINK

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

Terminator

Primary

Cabinet

To antenna terminals

on I/O connector plate

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 4-49. Two-Sector Site, Each Cabinet with 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.

4-76 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

EMRPB, TLINK, and AFS 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: Route the EMRPB cable through the conduit and use the

connector tool (see Figure 4-45 on page 4-71) to terminate to

an IDC connector per Table 4-11 on page 4-70.

17.5.1 Three-Sector Site, Each Cabinet with 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 4-50 on page 4-78 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 3 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 interface

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

interface 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 A 1998-11-17 4-77

Installation

Note: The TRX board in position 6 is used for DVER

EMRPB

AFS

TLINK

Terminator

Main

Cabinet

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

Primary 1

Cabinet

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

Primary 2

Cabinet

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

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

PSU

Figure 4-50. Three-Sector Site, Each Cabinet with Two Antennas

4-78 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Installation

17.5.2 Three-Sector Site, Each Cabinet with 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 4-51 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 3 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 interface

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

interface 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 A 1998-11-17 4-79

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 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 out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Pos

. 6

Terminator

To antenna terminals

on I/O connector plate

To antenna terminals

on I/O connector plate

To antenna terminals

on I/O connector plate

Pos

. 6

Pos

. 6

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 4-51. Three-Sector Site, Each Cabinet with Four Antennas

4-80 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 4-12 on

page 4-81

Table 4-12. 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 4-13 on page

4-81

Table 4-13. 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 A 1998-11-17 4-81

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 loose

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.

4-82 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 A 1998-11-17 4-83

Installation

4-84 1/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 884 Micro

(1900 MHz) 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 Remote Multiplexer (REMUX) Unit

Replacement ............... 5-21

6.4 Signal Terminal Receiver, Micro (STRM) Unit

Replacement ............... 5-24

6.5 Connector (CONN) Unit Replacement . . . 5-26

6.6 Extension Module Regional Processor

(EMRPM) Unit Replacement ....... 5-28

6.7 Transceiver (TRX) Unit Replacement . . . 5-31

6.8 Antenna Near Part (ANP)/Radio Frequency

Test Loop (RFTL) Unit Replacement .... 5-33

6.9 Alarm (ALM) Unit Replacement ...... 5-35

6.10 Environmental Control Unit (ECU)

Replacement ............... 5-37

6.11 Fan Replacement ............ 5-39

6.12 Main Heater Assembly Replacement .... 5-42

6.13 Battery Heater Replacement ....... 5-45

6.14 Battery Replacement ........... 5-48

6.15 AC Surge Suppressor Replacement .... 5-52

6.16 Pulse Code Modulation (PCM) (T1/E1) Primary

Surge Suppressor Replacement ...... 5-55

6.17 Pulse Code Modulation (PCM) T1(E1)

Secondary Surge Suppressor Replacement 5-56

6.18 Air Filter Replacement .......... 5-58

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-1

Hardware Re lacement

5-2 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

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 the MSC personnel who are 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 A 1998-11-17 5-3

Hardware Re lacement

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 in excess of 100V is used in the RBS 884 Micro (1900 MHz).

Observe safety precautions. Contact with voltage as low as 50V can result

in death.

Observe the following safety precautions:

•Do not touch high voltage connections when working on energized

equipment.

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

manual is performed.

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

removed from the cabinet.

•Perform all installation and repair procedures in the order presented.

•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.

Note: The power cable serves as the only power disconnection device

for 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.

All transmitters must be disabled prior to working with or near antennas.

2.4 Beryllium Oxide

Some equipment contains beryllium oxide in ceramic form.

5-4 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

DANGER!

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.

•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. Comply with all applicable

local regulations.

2.5 Heavy Loads

Warning!

Incorrectly lifting heavy loads can result in severe injury to persons and

damage to the equipment.

A fully equipped RBS 884 Micro (1900 MHz) cabinet weighs 105 kg (230

lbs). Ericsson recommends two persons be present during the maintenance

activities where heavy lifting is required.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-5

Hardware Re lacement

3 Product Handling and Inspection

Components may be damaged because of ESD. Read the “Electrostatic

Discharge” section in the Installation and Hardware Replacement Manual

for information and directions.

A hardware replacement unit must always be kept in its original packaging

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 closed vehicle.

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 local procedures or return it to the

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.

5-6 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

4.1.2 Tools

Tools required 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)

N/A 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 884 Micro (1900 MHz)

Cabinets

To troubleshoot the RBS 884 Micro (1900 MHz), perform the following:

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

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-7

Hardware Re lacement

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.

3. Disable the intrusion alarm by pulling out the black pin at the top of

the door frame.

4. To release the wind latch, lift up on the bar and close the door.

5. Attach the ESD strap and connect the alligator clip 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

6. 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.

5-8 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

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

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-9

Hardware Re lacement

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

5-10 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

7. If Troubleshooting procedures have been performed as part of a

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. Alarm Troubleshooting

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 by way

of backplane

Reset fan breaker

Two or more fans not

within ±25% of set speed

(checked once per

second)

Multi-Fan Alarm

From ECU/TRXs by way

of backplane

Reset fan breaker

AC Mains ≤minimum

PSU voltage requirement

AC Mains Failure Alarm

From PSU by way of AC/

DC Distribution Box by

way of cable to ECU by

way of cable to EMRPM

by way of 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 by way of AC/

DC Distribution Box by

way of cable to ECU by

way of cable to EMRPM

through backplane

Self clears (trigger

conditions not valid) after

PSU power is within

speciﬁcation

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-11

Hardware Re lacement

Table 5-2. Alarm Troubleshooting (Continued)

Condition

DCBus Voltage < 22.9

VDC; disconnects

Battery when < 20.9

VDC

Low Voltage Disconnect

Alarm

From AC/DC Distribution

Box to ALM through

cable

Self Clears

Temperature of Battery

Terminal > 70

Battery Thermal Alarm

From AC/DC Distribution

Box to ALM through

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 through

cable to ALM through

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 through

cable to ALM through

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 through

cable to ALM through

cable

Reset Main Heater

breaker

5-12 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Table 5-2. Alarm Troubleshooting (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 through

cable to ALM through

cable

Self clears when

temperature returns to

within speciﬁcations

AC Surge

No AC Power = alarm

AC Surge Suppressor

Alarm

From AC Surge

Suppressor through

cable to AC/DC

Distribution Box through

cable to ALM

Self clears if AC Surge

Suppressor is not

damaged

Top or Front Door is

Open

Door Alarm

From Switches through

cable to AC/DC

Distribution Box through

cable to ALM

Self clears when both

doors closed

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-13

Hardware Re lacement

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/Printout)

DC Alarm (Alarm 2 - APT/Printout)

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 are

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 procedures 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)

•Remote Multiplexer (REMUX) Unit

•Signal Terminal Receiver, Micro (STRM) Unit

5-14 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

•Connector (CONN) Unit

•Extension Module Regional Processor, micro (EMRPM) Unit

•Transceiver (TRX) Unit

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

•Alarm (ALM) Unit

•Environmental Control Unit (ECU)

•Fans

•Main Heater

•Battery Heater

•Batteries

•AC Surge Suppressor

•Pulse Code Modulation (PCM) (T1/E1) Primary Surge Suppressor

•Pulse Code Modulation (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 PSU 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).

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-15

Hardware Re lacement

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)

N/A Small Screwdriver or Pen (to set switches)

N/A Repair Traveler Note

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.

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

Figure 5-6. Unit Extractor Tool (Example with the REMUX Unit)

5-16 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Torx Bit T10

Torque Wrench

Unit Screws

PCM

Test

TLINK

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

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

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-17

Hardware Re lacement

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. Obtain permission from the MSC operator to replace the unit. RBS

units must be blocked at the MSC before 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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Ensure the PSU 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 5-9 on page 5-19) 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 operator.

5-18 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Status LED

Tx Out

Power

Error

Status

1900M

TRX

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-9. 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. Locate the PSU shown in Figure 5-10 on page 5-19.

AC Power

Connector TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-10. 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.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-19

Hardware Re lacement

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 replacement PSU from its packaging and carefully slide

the unit into the cabinet in place of the old unit.

13. Use the torque wrench with a Torx bit TX10 to tighten the screws on

the front to 0.6 Nm.

14. Reconnect the AC and DC Power connectors.

15. Follow the procedure for powering up the cabinet in the “Equipment

Power Up” section in the Installation and Hardware Replacement

Manual.

16. Inform the MSC operator that the unit has been replaced and is ready

to be tested.

17. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

18. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new PSU. Use the comments ﬁeld to note the date of

hardware replacement and the new R-state number.

19. Close the cabinet door.

Unit Repair

20. Complete the Repair Traveler Note and attach it to the PSU

suspected to be faulty.

21. Pack the PSU in the packing material from the new unit and return it

to your local service center.

5-20 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

6.3 Remote Multiplexer (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. Obtain permission from the MSC operator to replace the REMUX.

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the REMUX is the same type as the unit to be replaced,

and that it has the same or higher R-state.

Warning!

Check that the REMUX status LEDs (see Figure 5-11 on page 5-22)

and all TRX status LEDs (see Figure 5-9 on page 5-19) in all

cabinets are OFF.

If any of the mentioned status LEDs are on or ﬂashing, contact MSC

operator.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-21

Hardware Re lacement

PCM

Test

TLINK

REMUX

Power

Error

V24

PCM

Prim

PCM

Sec

AFS

Out

Status 1

Status 2

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-11. 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 REMUX.

7. Disconnect the cables from the REMUX.

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 REMUX, then a blank

panel (Blank 12M) must be screwed into the slot position (or the old

unit left in position).

Pull out the REMUX, using the extractor tool, and place it in an

ESD bag. Save the extractor hole plug. Replace the plug after

installing or replacing the unit.

Unit Hardware Replacement

10. Remove the replacement REMUX from its ESD bag and set its

switches to match those on the old unit. The switch settings are

described in the “Setting the Unit Switches” section in the

Installation and Hardware Replacement Manual.

11. Carefully slide the replacement unit into the cabinet. Push the unit

ﬁrmly into the backplane connector.

5-22 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

12. Use the torque wrench with the Torx bit TX10 to tighten the screws

on the front 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

procedures 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 5-22 to

the unit. For cable connections, refer to the External Cable

Installation section in the “Installation” part of the Installation and

Hardware Replacement Manual. Additional information can be

found in “Appendix C” of the Installation and Hardware

Replacement Manual.

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 operator that the REMUX has been replaced and is

ready to be tested.

17. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

18. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit. Use the comments ﬁeld to note the date of

the hardware replacement and new R-state.

19. Close the cabinet door.

Unit Repair

20. Complete the Repair Traveler Note and attach it to the REMUX

suspected to be faulty.

21. Pack the REMUX in the packing material from the new unit and

return it to the local service center.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-23

Hardware Re lacement

6.4 Signal Terminal Receiver, Micro (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. Obtain permission from the MSC operator to replace the unit.

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the replacement STRM 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 5-12 on page 5-25)

and all TRX status LEDs (see Figure 5-9 on page 5-19) in all

cabinets are OFF.

If any of the mentioned status LEDs are on or ﬂashing, contact the

MSC operator.

5-24 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Status LEDs

STRM

Power

Error

Status 1

EMRPB

Status 2

OUT

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-12. 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 STRM.

7. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the STRM.

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 STRM, 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 the unit.

Hardware Replacement Unit

9. Remove the replacement STRM 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 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

procedures in Section 4 on page 5-6 for detection of units suspected

to be faulty.

13. Reconnect the STRM cable or terminator.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-25

Hardware Re lacement

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 operator that the STRM has been replaced and is

ready to be tested.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new STRM. Use the comments ﬁeld to note the date

of the hardware replacement and new R-state.

18. Close the cabinet door.

Unit Repair

19. Complete the Repair Traveler Note and attach it to the STRM

suspected to be faulty.

20. Pack the STRM in the packing material from the new unit and return

it to the local service center.

6.5 Connector (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. Obtain permission from the MSC operator to replace the CONN unit.

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the replacement CONN unit is the same type as the unit

to be replaced, and that it has the same or higher R-state number.

5-26 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Warning!

Check that all TRX status LEDs (see Figure 5-9 on page 5-19) in the

relevant cabinet are OFF.

If they are on or ﬂashing, contact the MSC operator.

Power

Error

Status 2

OUT

EMRPB

AFS

Out

AFS

TL 1

TL 2

Status 1

CONN

Status LEDs

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-13. 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 CONN unit.

7. Disconnect the cables from the CONN unit.

8. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the CONN 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 CONN unit, a blank

panel (Blank 8M) must be screwed into the slot position.

Pull out the CONN unit, using the extractor tool, and place it in an

ESD bag. Save the extractor hole plug. Replace the plug after

installing or replacing the unit.

Hardware Replacement Unit

10. Remove the replacement CONN unit from its ESD bag.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-27

Hardware Re lacement

11. Carefully slide the replacement unit into the cabinet. 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 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

procedures in Section 4 on page 5-6 for detection of units suspected

to be faulty.

14. Reconnect the CONN unit cables.

15. Inform the MSC operator that the CONN unit has been replaced and

is ready to be tested.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new CONN unit. Use the comments ﬁeld to note the

date of hardware replacement and new R-state.

18. Close the cabinet door.

Unit Repair

19. Complete the Repair Traveler Note and attach it to the CONN unit

suspected to be faulty.

20. Pack the unit in the packing material from the new unit and return it

to the local service center.

6.6 Extension Module Regional Processor (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. Obtain permission from the MSC operator to replace the EMRPM

unit.

5-28 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the replacement EMRPM 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 5-14 on page 5-29)

and all TRX status (see Figure 5-9 on page 5-19) 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 operator.

Status LEDs

Power

Error

Status 1

Status 2

TW/DEB

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-14. 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.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-29

Hardware Re lacement

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 EMRPM 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 the unit.

Unit hardware replacement

9. Remove the replacement EMRPM unit from its ESD bag and set the

address switches to match those on the old unit. EMRPM address

switch settings are described in the Setting the Unit Switches section

of the “Installation” part of the Installation and Hardware

Replacement Manual.

10. Carefully slide the replacement EMRPM unit into the cabinet. 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 to 0.6 Nm.

12. Check that the green power LED on the unit is on and the red error

LED is off. If not, refer to the troubleshooting procedures 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 operator that the EMRPM has been replaced and is

ready to be tested.

15. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

16. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit. Use the comments ﬁeld to note the date of

the hardware replacement and new R-state.

17. Close the cabinet door.

Unit Repair

18. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

5-30 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

19. Pack the unit in the packing material from the new unit and return it

to the local service center.

6.7 Transceiver (TRX) Unit Replacement

Unit Removal

1. Obtain permission from the MSC operator to replace the TRX.

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the replacement TRX 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 TRX to be replaced (see Figure

5-15 on page 5-31) is OFF.

If it is on or ﬂashing, contact the MSC operator.

Status LED

Tx Out

Power

Error

Status

1900M

TRX

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-15. A TRX Unit

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-31

Hardware Re lacement

5. Manually block the TRX to be replaced. This assures that any calls

are handed off to another TRX.

6. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

7. Disconnect the cable from the TRX, using the torque wrench with

the SMA tool.

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, an RMU (dummy TRX) must be installed or the old TRX left

in position.

Pull out the TRX, using the extractor tool, and place it in an ESD

bag. Save the extractor hole plug. Replace the plug after installing

or replacing the TRX.

Unit Hardware Replacement

10. Remove the replacement TRX 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 to 0.6 Nm.

13. Check that the green power LED on the unit is on and the red error

LED is off. If not, refer to the troubleshooting procedures in Section

4 on page 5-6 for detection of units suspected to be faulty.

14. Reconnect the TRX cable. Hand tighten the cable and then use the

torque wrench with the SMA tool to tightened to 0.6 Nm.

15. Manually deblock the TRX.

16. Inform the MSC operator that the TRX has been replaced and is

ready to be tested.

17. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

18. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new TRX. Use the comments ﬁeld to note the date of

the hardware replacement and new R-state.

5-32 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

19. Close the cabinet door.

Unit Repair

20. Complete the Repair Traveler Note and attach it to the TRX

suspected to be faulty.

21. Pack the unit in the packing material from the new unit and return it

to your local service center.

Note: TRX components contain beryllium oxide. Return

the TRX to the local service center for proper

disposal.

6.8 Antenna Near Part (ANP)/Radio Frequency Test Loop (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. Obtain permission from the MSC operator to replace the ANP/RFTL.

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the replacement ANP/RFTL 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

5-16 on page 5-34) is OFF.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-33

Hardware Re lacement

If it is on or ﬂashing, contact the MSC operator.

Status LED

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-16. 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 ANP/RFTL.

7. Disconnect the cables from the ANP/RFTL. 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 ANP/RFTL.

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 replacement ANP/

RFTL unit, leave the old unit in the slot until the replacement unit is

available.

Using the extractor tool, remove the ANP/RFTL 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 replacement ANP/RFTL from its ESD bag.

11. Carefully slide the replacement unit into the cabinet. 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 to 0.6 Nm.

5-34 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

13. Check that the green power LED on the ANP/RFTL is on and the

red error LED is off. If not, refer to the troubleshooting procedures

in Section 4 on page 5-6 for detection of units suspected to be faulty.

14. Reconnect the ANP/RFTL cables. Hand tighten all cables. Do not

use the torque wrench on TNC connectors. On non-TNC connectors,

use the torque wrench with the SMA tool to tightened to 0.6 Nm.

For cable connections, refer to the “External Cable Installation”

section in the Installation and Hardware Replacement Manual.

Additional information can be found in “Appendix C” of the

Installation and Hardware Replacement Manual.

15. Inform the MSC operator that the ANP/RFTL has been replaced and

is ready to be tested.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. 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.

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 the local service center.

6.9 Alarm (ALM) Unit Replacement

Unit Removal

1. Obtain permission from the MSC operator to replace the ALM unit.

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-35

Hardware Re lacement

Check that the replacement ALM 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 ALM unit (see Figure 5-17 on

page 5-36) is OFF.

If it is on or ﬂashing, contact the MSC operator.

Status LED

ALM

Power

Error

Status

CLINK

Control

Alarm

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-17. 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.

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 replacement ALM unit,

a blank panel (Blank 10M) must be installed in the slot position.

Using the extractor tool, remove the ALM unit and place it in an

ESD bag. Save the extractor hole plug. Replace the plug after

installing or replacing unit.

5-36 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Unit Hardware Replacement

10. Remove the replacement ALM unit from its ESD bag.

11. Carefully slide the replacement ALM unit into the cabinet. 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 to 0.6 Nm.

13. Check that the green power LED on the unit is on and the red error

LED is off. If not, refer to the troubleshooting procedures in Section

4 on page 5-6 for detection of units suspected to be faulty.

14. Reconnect the ALM cables.

15. Inform the MSC operator that the ALM has been replaced and is

ready to be tested.

16. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

17. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new ALM unit. Use the comments ﬁeld to note the

date of hardware replacement and new R-state.

18. Close the cabinet door.

Unit Repair

19. Complete the Repair Traveler Note and attach it to the ALM unit

suspected to be faulty.

20. Pack the ALM unit in the packing material from the new unit and

return it to your local service center.

6.10 Environmental Control Unit (ECU) Replacement

Unit Removal

Warning!

The following procedure will disable the RBS 884 Micro (1900

MHz). The base station will be out of service during the procedure.

Contact the MSC before performing the following procedure. Inform

the MSC operator that the base station will be disabled.

1. Obtain permission from the MSC operator to replace the ECU unit.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-37

Hardware Re lacement

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.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the replacement ECU unit is the same type as the unit to

be replaced, and that it has the same or higher R-state number.

4. Attach the ESD strap to your wrist and connect the free end of the

strap cable to an appropriate ground conductor in the cabinet.

5. Turn off the ECU circuit breaker.

6. Make a note of the cables connected to the ECU unit. Refer to

Figure 5-18 on page 5-38).

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure 5-18. Environmental Control Unit (ECU)

7. Disconnect the cables from the ECU unit.

Note: When cables are disconnected from the ECU, the

system assumes the ECU has failed. As a result, all

fans will be powered on at full speed. This is

normal.

8. Use the torque wrench with the Torx bit TX10 to loosen the screws

on the front of the ECU unit.

9. Using the extractor tool, remove the ECU unit 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.

5-38 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Unit Hardware Replacement

10. Remove the replacement ECU unit from its ESD bag.

11. Carefully slide the replacement ECU unit into the cabinet. 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. Reconnect the ECU cables.

14. Turn on the ECU circuit breaker.

15. After fan test is complete, verify the decimal points located in the

two-digit display are illuminated. If not, refer to the troubleshooting

procedures in Section 4 on page 5-6 for detection of units suspected

to be faulty.

16. After ECU replacement, block and deblock all units in the RBS 884

Micro (1900 MHz) cabinet.

17. Remove the ESD strap cable from the cabinet, and detach it from

your wrist.

18. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new ECU unit. Use the comments ﬁeld to note the

date of hardware replacement, and new R-state.

19. Close the cabinet door.

20. Inform the MSC operator that the ECU unit has been replaced.

Unit Repair

21. Complete the Repair Traveler Note and attach it to the ECU unit

suspected to be faulty.

22. Pack the ECU unit in the packing material from the new unit and

return it to the local service center.

6.11 Fan Replacement

Unit Removal

1. Obtain permission from the MSC operator to replace the Fan unit.

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.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-39

Hardware Re lacement

3. Pull out the two plungers in the lid and fully lift lid. Lower lid

slightly while pushing the support brace towards the rear of the

cabinet. The support brace should engage the mating bracket and

lock the lid in position.

4. Identify the failed Fan unit. The code displayed on the front of the

ECU indicates which Fan has failed.

Warning!

A unit must never be replaced by another unit with a lower R-state

number.

Check that the replacement Fan unit is the same type as the unit to

be replaced, and that it has the same or higher R-state number.

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 Fan unit.

7. Disconnect the three-wire connector. See Figure 5-19 on page 5-40.

Fan Connectors

Figure 5-19. The Fan Unit

5-40 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

8. Disconnect the two-wire connector.

9. Remove the tie wraps securing the Fan wiring.

10. Remove the three screws that secure the Fan unit to the cabinet

frame.

11. Remove the Fan unit.

Unit Hardware Replacement

12. Remove the replacement Fan unit from any packing material.

13. Install new Fan unit and replace three mounting screws.

14. Replace tie wraps if required.

15. Reconnect the two-wire Fan connector.

16. Reconnect the three-wire Fan connector.

17. Cycle the Fan breaker (turn off and turn on) to reset the Fan alarm.

The Fan start-up sequence will be initiated.

18. If the new Fan does not start, refer to the troubleshooting procedures

in Section 4 on page 5-6 for detection of units suspected to be faulty.

19. Close the lid by disengaging the support brace. Press down ﬁrmly on

the lid until the two plungers engage the slots on the cabinet. Press

the plungers toward rear of cabinet to lock lid.

20. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new Fan unit. Use the comments ﬁeld to note the

date of hardware replacement and new R-state.

21. Close the cabinet door.

22. Inform the MSC operator that the Fan has been replaced.

Unit Repair

23. Complete the Repair Traveler Note and attach it to the Fan unit

suspected to be faulty.

24. Pack the Fan 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 A 1998-11-17 5-41

Hardware Re lacement

6.12 Main Heater Assembly 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

operator before performing the following procedure.

Unit Removal

1. Obtain permission from the MSC operator to replace the Main

Heater Assembly.

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.

3. Place the MAIN HTR circuit breaker on the right side of the AC/DC

Distribution Box in the OFF position. See Figure 5-20 on page 5-42.

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 5-20. AC/DC Distribution Box

4. Locate the Main Heater Assembly. See Figure 5-21 on page 5-43.

5-42 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Figure 5-21. Subrack Heater

5. Check that the Main Heater Assembly is the same type as the

assembly to be replaced.

6. Unplug the control wires from the front of the Main Heater

Assembly.

7. Remove the two screws located on the top of the perforated

assembly cover. Remove the cover and retain for installation on

replacement assembly.

8. Remove the mounting screws located on each side of the Main

Heater Assembly (two per side). Pull the assembly out four to six

centimeters.

DANGER!

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 assembly.

Follow cable into the Main 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.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-43

Hardware Re lacement

11. Remove the strain relief and remove the power cable from the heater

assembly. Remove the Main Heater Assembly from the cabinet.

Unit Hardware Replacement

12. Remove the replacement Main Heater Assembly from any packing

material.

13. Remove the two screws located on the top of the perforated

assembly cover. Remove the cover.

14. Insert the replacement assembly approximately eight to ten

centimeters into cabinet opening.

15. Insert power cable through right side of the 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 tighten screws.

18. Push the Main Heater Assembly all the way into the cabinet opening

and replace the mounting screws (two per side).

19. Reconnect the control wires to the front of the Main Heater

Assembly.

20. Place the MAIN HTR circuit breaker on the right side of the AC/

DC Distribution Box in the ON position.

21. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new assembly. Use the comments ﬁeld to note the

date of the hardware replacement and new R-state.

22. Close the cabinet door.

23. Inform the MSC operator that the Main Heater Assembly has been

replaced.

Unit Repair

24. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

25. Pack the assembly in the packing material from the new assembly

and return it to the local service center.

5-44 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

6.13 Battery Heater Replacement

Unit Removal

1. Obtain permission from the MSC operator to replace the Battery

Heater.

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.

3. Place the BAT circuit breaker on the left side of the AC/DC

Distribution Box in the OFF position. See Figure 5-22 on page 5-45.

4. Place the BAT HTR circuit breaker on the right side of the AC/DC

Distribution Box in the OFF position. See Figure 5-22 on page 5-45.

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 5-22. AC/DC Distribution Box

5. Locate the battery compartment and Battery Heater under the battery

tray. See Figure 5-23 on page 5-46.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-45

Hardware Re lacement

Battery

Compartment

Failed Battery

Sensor connector

Power Connector

Figure 5-23. Location of Battery Compartment and Battery Heater

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

from the battery compartment.

7. Disconnect the Failed Battery Sensor connector. See Figure 5-24 on

page 5-47.

5-46 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

Heater Assembly

Electrical Connections

Located Inside

Enclosure

Thermostat

Heater

Figure 5-24. Battery Heater Assembly

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. Remove the screw on the front of the wiring enclosure located above

the battery compartment. Support the enclosure.

12. Pull the enclosure down and locate the two screws securing the

battery heater thermostat to the bottom of the enclosure.

13. Remove the thermostat nuts and thermostat.

14. 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.

15. Remove the Battery Heater from the cabinet.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-47

Hardware Re lacement

Unit Hardware Replacement

16. Remove any packing material from the replacement Battery Heater.

17. Push the two heater power wires through the strain relief and the

bottom of the enclosure. Connect the wires to the terminal strip.

18. Secure the thermostat to the bottom of the enclosure.

19. Raise the enclosure and slide the pins into the holes. Secure the

enclosure to the top of the battery compartment.

20. Install the battery tray.

21. Install the hold-down bracket and the hex nut on the side wall of the

battery compartment.

22. Reconnect the power connector of the battery cable assembly to the

connector at the top of the battery compartment.

23. Reconnect the Failed Battery Sensor connector.

24. Replace the battery compartment cover.

25. Place the BAT circuit breaker on the left side of the AC/DC

Distribution Box in the ON position.

26. Place the BAT HTR circuit breaker on the right side of the AC/DC

Distribution Box in the ON position.

27. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new Battery Heater. Use the comments ﬁeld to note

the date of the hardware replacement and new R-state.

28. Close the cabinet door.

29. Inform the MSC operator that the battery heater has been replaced.

Unit Repair

30. Complete the Repair Traveler Note and attach it to the Battery

Heater suspected to be faulty.

31. Pack the Battery Heater in the packing material from the new heater

and return it to the local service center.

6.14 Battery Replacement

Unit Removal

1. Obtain permission from the MSC operator to replace the Battery.

5-48 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

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 5-25 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 5-25. AC/DC Distribution Box

4. Locate the battery compartment. See Figure 5-26 on page 5-50.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-49

Hardware Re lacement

Copper Strap

Battery 1

Battery 2

Battery Tray

Battery Heater

Failed Battery

Sensor Connector

Power Connector

Figure 5-26. aBattery Assembly

5. Remove the four hex head bolts from the battery cover and remove

the cover from the battery compartment.

6. Disconnect the Failed Battery Sensor connector. Refer to Figure

5-24 on page 5-47.

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 the 8-gauge red cable from the positive terminal (+) of

battery 2.

5-50 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

11. Disconnect the 8-gauge black cable from the negative terminal (-) of

battery 1.

12. 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.

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 5-24

on page 5-47. 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 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.

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

battery 1.

21. 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.

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. Replace the battery cover on the battery compartment.

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 A 1998-11-17 5-51

Hardware Re lacement

28. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new battery. Use the comments ﬁeld to note the date

of the hardware replacement and new R-state.

29. Close the cabinet door.

30. Inform the MSC operator that the internal battery has been replaced.

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. Obtain permission from the MSC operator to replace the AC Surge

Suppressor.

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.

3. Disconnect all power to the RBS 884 Micro (1900 MHz) cabinet.

Warning!

Verify all power is removed from the 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 5-27 on page 5-53.

5-52 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

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 5-27. AC/DC Distribution Box

5. Open the front of the AC/DC Distribution Box and locate the AC

Surge Suppressor on the back wall. See Figure 5-28 on page 5-53.

AC Surge Suppressor

Located on Rear Wall of

AC/DC Control Enclosure

PROTECTEDPOW

ERO

LINE

NEUTRAL

Figure 5-28. AC Surge Suppressor Assembly

6. Verify the LEDs on the front of the AC Surge Suppressor are off.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-53

Hardware Re lacement

7. Disconnect the LINE and NEUTRAL wires from the front of the

surge suppressor.

8. Remove the nuts securing the AC Surge Suppressor to rear wall.

Remove the AC Surge Suppressor.

Unit Hardware Replacement

9. Remove any packing material from the replacement AC Surge

Suppressor.

10. Install new AC Surge Suppressor to rear wall of AC/DC Distribution

Box.

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 the front of the AC Surge Suppressor are on.

14. Close the AC/DC Distribution Box.

15. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit. Use the comments ﬁeld to note the date of

the hardware replacement and new R-state.

16. Close the cabinet door.

17. Inform the MSC operator that the AC Surge Suppressor has been

replaced.

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 the local service center.

5-54 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

6.16 Pulse Code Modulation (PCM) (T1/E1) 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. Obtain permission from the MSC operator to replace the PCM

Primary Surge Suppressor.

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.

3. Locate the PCM Primary Surge Suppressor on the right inside wall

of cabinet. See Figure 5-29 on page 5-55.

12345

Located on Right Inside Wall

T1(E1) PCM Primary Surge

Suppressor Tube (10)

Figure 5-29. T1(E1) Primary Surge Suppressor

4. Remove the T1(E1) cable wires from the PCM Primary Surge

Suppressor. Record the position of the wires.

5. Remove the four nuts securing the PCM Primary Surge Suppressor

to the cabinet. Remove the unit from the cabinet.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-55

Hardware Re lacement

Unit Hardware Replacement

6. Remove the replacement PCM Primary Surge Suppressor.

7. Install the replacement unit in the cabinet.

8. Connect the T1(E1) cable wires into the large and small activator

ports (tip=white and ring=orange).

Note: Large ports are for 18.5 to 20 AWG wires and

small ports are for 22 to 24 AWG wires.

9. Using a 216–type tool, tighten the activator until the tension stops.

Do Not Overtighten.

10. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit. Use the comments ﬁeld to note the date of

the hardware replacement, and new R-state.

11. Close the cabinet door.

12. Inform the MSC operator that the PCM Primary Surge Suppressor

has been replaced.

Unit Repair

13. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

14. Pack the PCM Primary Surge Suppressor in the packing material

from the new unit and return it to your local service center.

6.17 Pulse Code Modulation (PCM) T1(E1) 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. Obtain permission from the MSC operator to replace the unit.

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.

5-56 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

Hardware Re lacement

3. Locate the PCM Secondary Surge Suppressor. See Figure 5-30 on

page 5-57.

PCM T1(E1) Secondary Surge

Suppressor is Located Below

the AC/DC Box

Suppressor #2

(Optional)

Suppressor #1

Ground Wire

(to Gnd Plate)

PCM T1(E1) Shielded Cable

(From: Equipment To: Subrack

REMUX "PCM PRIM")

PCM T1(E1) Shielded Cable

(From: Equipment To: Subrack

REMUX "PCM SEC")

PCM T1(E1) Shielded Cable

(From: Line To: PSSI-J2)

PCM T1(E1) Shielded Cable

(From: Line To: PSSI-J1)

Figure 5-30. PCM T1(E1) Secondary Surge Suppressor Assembly

4. Remove the T1(E1) cables from the PCM Secondary Surge

Suppressor. Record position of cables if required.

5. Remove the ground wire.

6. Remove the two mounting screws (or nuts) and remove the PCM

Secondary Surge Suppressor from the cabinet.

Unit Hardware Replacement

7. Install the replacement PCM Secondary Surge Suppressor in cabinet

and replace two mounting screws.

8. Connect T1(E1) cables and ground wire.

9. Update the Plant Speciﬁcation in the Site Installation Documentation

concerning the new unit. Use the comments ﬁeld to note the date of

the hardware replacement and new R-state.

10. Close the cabinet door.

11. Inform the MSC operator that the PCM Secondary Surge Suppressor

has been replaced.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-57

Hardware Re lacement

Unit Repair

12. Complete the Repair Traveler Note and attach it to the unit suspected

to be faulty.

13. Pack the PCM Secondary Surge Suppressor in the packing material

from the new unit and return it to the local service center.

6.18 Air Filter Replacement

Unit Removal

1. Obtain permission from the MSC operator to replace the Air Filter.

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.

3. Locate the lower air ﬁlter cover. See Figure 5-31 on page 5-58.

Air Filter Located Behind

Cover Plate

Figure 5-31. Air Filter Location

4. 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.

5. 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 A 1998-11-17

Hardware Re lacement

6. Dispose of the old Air Filter properly.

Unit Hardware Replacement

7. Remove the replacement Air Filter and note air ﬂow directional

arrows on side of the ﬁlter.

8. Install the new Air Filter with directional air ﬂow arrows pointed up.

9. Replace the front cover and slide the latches inward to secure the

cover.

10. 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.

11. Close the cabinet door.

12. Inform the MSC operator that the Air Filter has been replaced.

2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 5-59

Hardware Re lacement

5-60 2/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 A 1998-11-17 6-1

Glossary of Terms

6-2 1/0033-EN/LZB 119 3312 Uae Rev A 1998-11-17

Part 7

Acronyms and Abbreviations

AC Alternating Current

ALM Alarm (Module for RBS)

AMPS Advanced Mobile Phone Service

ANP Antenna Near Part

ATC Autotuned Combiner

ATCC Autotuned Combiner Cabinet

B8ZS Bit 8 Zero Substitute

CABCOMB Cabinet Combiner

CLC Control Signaling Link

COMBFILT Combiner Filter

CONN Connection Board

COP Control Part

CRC Cyclic Redundancy Check

CRI Control and Radio Interface

CSU Channel Service Unit

D-AMPS Digital Advanced Mobile Phone Service

DBC Down Banded Cellular

DC Directional Coupler

DCCH Digital Control Channel

DS0 Digital Signal Level 0

DTC Digital Trafﬁc Channel

DVER Digital Veriﬁcation Module

ECU Environmental Control Unit

EMBS Equipped Micro base Subrack

EMC Electromagnetic Compatibility

EMRP Extension Module Regional Processor

EMRPM EMRP for Micro Base

ESD Electrostatic Discharge

FCC Federal Communications Commission

GS Group Switch

IC Integrated Circuit

IHRM Installation and Hardware Replacement Manual

LED Light Emitting Diode

MC MultiCoupler

MCPA MultiCarrier Power Ampliﬁer

2/0033-EN/LZB 119 3312 Uae Rev A 1998-11-17 7-1

Acronyms and Abbreviations

MOP Modem Part

MSC Mobile Switching Center

MVER Mobile Veriﬁcation Module

PCB Printed Circuit Board

PCM Pulse Code Modulation

PSU Power Supply

RBS Radio Base Station

RCG Radio Cabinet Group

REMUX Remote Multiplexor: Interfacing Board for the RBS

RF Radio Frequency

RFTL Radio Frequency Test Loop

RMU Radio Matching Unit

RSSI Received Signal Strength Indicator

RX Receiver

SCCS Self-Contained Cell Site

SP Signalling Point (SS7)

SP Support Processor (MSC)

STC Signaling Terminal Central

STR Signaling Terminal Regional

STRM Signal Terminal Remote

TCB Transceiver Cabinet

TLINK Transmission Link

TRAB Transcode Rate Adapter Board

TRX Transceiverm (Module for RBS)

TS Time slot

TX Transmitter

VSWR Voltage Standing Wave Radio

7-2 2/0033-EN/LZB 119 3312 Uae Rev A 1998-11-17

Appendix A

Documentation Overview

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

2 RBS 884 Customer Manuals .......... A-3

5/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 A-1

A endix A

A-2 5/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

A endix 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 Installation and Hardware

Replacement Manual Operations and

Maintenance Manual

Job Procedures

Installation

and

Test

Operations and

Maintenance Manual

Integration Guidelines

Figure A-1. RBS 884 Customer Manuals Related to Work Procedures

Use the RF Modules to plan and dimension a cellular network based on the

Ericsson Cellular Telephone System. Engineer the sites using the RBS 884

Site Engineering Manual, and create a data transcript using the RBS

Integration Guidelines.

Install and test the sites using the General Installation Instructions and the

Installation and Hardware Replacement Manual. These manuals cover

5/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 A-3

A endix A

installation of new base stations, replacement of hardware, and extension

of existing base stations. There is one manual for each type of RBS:

•RBS 884 Macro Installation and Hardware Replacement Manual (one

manual for each frequency band)

•RBS 884 Micro Installation and Hardware Replacement Manual (one

manual for each frequency band)

•RBS 884 Compact Installation and Maintenance Manual

Test the sites using the Installation and Hardware Replacement Manual

and the Job Procedures. Commission the sites and test the cellular

network using the Job Procedures and the RBS Integration Guidelines.

Use the Job Procedures during operation and maintenance from the

Mobile Switching Center (MSC). Use the Parts Catalog to identify

replaceable RBS parts, and use the Installation and Hardware Replacement

Manual for RBS hardware replacement and hardware extensions.

Table A-1. RBS 884 Customer Manuals

Manual Type Customer Manual Product Number

RF Engineering RF Module - CMS 8800 EN/LZB 119 3278

RF Module - DBC EN/LZB 119 2888

RF Module - Fixed Cellular Telephony EN/LZB 119 3277

Site Engineering RBS 884 Series Site Engineering Manual EN/LZB 119 2855

Installation General Installation Instructions EN/LZB 119 3342

RBS 884 Macro 800 MHz Installation and Hardware

Replacement Manual EN/LZB 119 3307

RBS 884 Macro 1900 MHz Installation and Hardware

Replacement Manual EN/LZB 119 3308

RBS 884 DBC Installation and Hardware Replacement

Manual EN/LZB 119 3309

RBS 884 Micro (800 MHz) Installation and Hardware

Replacement Manual EN/LZB 119 3311

RBS 884 Micro (1900 MHz) Installation and Hardware

Replacement Manual EN/LZB 119 3312

RBS 884 Compact Installation and Maintenance

Manual EN/LZB 119 2224

A-4 5/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

A endix A

Table A-1. RBS 884 Customer Manuals (Continued)

Manual Type Customer Manual Product Number

Parts Catalog 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 (800 MHz) Parts Catalog EN/LZB 119 2454

RBS 884 Micro (1900 MHz) Parts Catalog EN/LZB 119 3320

RBS 884 Compact Parts Catalog EN/LZB 119 2455

Operation and

Maintenance

RBS 884 Series Operations and Maintenance Manual

CMS 8800 Version 4.0 1LZY 213 1045

1Available on CD-ROM only

The Job Procedures and the Integration Guidelines are available as part of

the RBS 884 Operations and Maintenance Manual.

5/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 A-5

A endix A

A-6 5/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 3312 Uae Rev A 1998-11-17 B-1

A endix B

B-2 6/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

A endix 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: era.erarimpl@memo.ericsson.se

send e-mail as “Mime Compliant” (7–bits)

6/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17 B-3

A endix B

B-4 6/1551-EN/LZB 119 3312 Uae Rev A 1998-11-17

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 A 1998-11-17 C-1

A endix C

C-2 7/1551-EN/LZB 119 3311 Uae Rev A 1998-11-17

A endix 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

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 as DVER

Pos. 6

Figure C-1. One-Sector Site, One Cabinet with Two Antennas

7/1551-EN/LZB 119 3311 Uae Rev A 1998-11-17 C-3

A endix 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

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 C-2. One-Sector Site, One Cabinet with Four Antennas

C-4 7/1551-EN/LZB 119 3311 Uae Rev A 1998-11-17

A endix C

3 Two-Sector Sites

Note: The TRX board in position 6 is used for DVER

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

To antenna terminals

on I/O connector plate

Main

Cabinet

Terminator

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

Primary

Cabinet

To antenna terminals

on I/O connector plate

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

PSU

Figure C-3. Two-Sector Site, Two Cabinets, Each Cabinet with two Antennas

7/1551-EN/LZB 119 3311 Uae Rev A 1998-11-17 C-5

A endix C

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

Main

Cabinet

Note: The TRX board in position 6 is used for DVER

EMRPB

AFS

TLINK

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

Terminator

Primary

Cabinet

To antenna terminals

on I/O connector plate

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure C-4. Two-Sector Site, Two Cabinets, Each Cabinet with Four Antennas

C-6 7/1551-EN/LZB 119 3311 Uae Rev A 1998-11-17

A endix C

4 Three-Sector Sites

Note: The TRX board in position 6 is used for DVER

EMRPB

AFS

TLINK

Terminator

Main

Cabinet

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

Primary 1

Cabinet

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

Primary 2

Cabinet

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

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

Power

Error

Status

ANP/RFTL

PSU

Figure C-5. Three-Sector Site, Each Cabinet with Two Antennas

7/1551-EN/LZB 119 3311 Uae Rev A 1998-11-17 C-7

A endix 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 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 out

Power

Error

Status

Power

Error

Status

Power

Error

Status

Power

Error

Status

Tx out Tx out Tx out Tx out

Pos

. 6

Terminator

To antenna terminals

on I/O connector plate

To antenna terminals

on I/O connector plate

To antenna terminals

on I/O connector plate

Pos

. 6

Pos

. 6

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

TX 2

TX 1

TX 4

TX 3

RX/TX

ANT A RX/TX

ANT B

TX ANT C TX ANT D

Power

Error

Status

ANP/RFTL

PSU

Figure C-6. Three-Sector Site, Each Cabinet with Four Antennas

C-8 7/1551-EN/LZB 119 3311 Uae Rev A 1998-11-17

A endix 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 MVER

Cabinets illustrated are Main Cabinets, but the cabling is the same for Primary Cabinets.

Cabinet using Four Antennas Pos. 6

HARRIS KRC121106-1 User Manual PubTeX output 1998 12 03 1743

HARRIS CORPORATION PubTeX output 1998 12 03 1743

Contents

PDF instruction manual

Navigation menu

Namespaces

Views

Navigation