HARRIS KRC121106-1 User 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.

i 00 152-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

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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

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.

Part 1

Introduction

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.

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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.

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Part 2

General Product Information

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

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

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

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

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

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

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

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General Product Information

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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 DAMPS 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).

General Product Information

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.

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General Product Information

3 Product Lines

RBS 884

RBS 884 Macro

RBS 884

RBS 884 Outdoor

RBS 884 Micro 1900

RBS 884 Micro 800

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.

RBS 884 Compact

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

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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 DAMPS 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.

General Product Information

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

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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.

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General Product Information

Sector A

RX RX

PCM LINK 1

MSC

Figure 2-2. General Overview of RBS 884 Conﬁguration

PCM LINK 2

RBS 884

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.

Sector B

RX RX

Antennas

Sector C

RX RX

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

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General Product Information

Radio Base Station (RBS)

Antenna Near Part

- Filter Unit

- Multi-Coupler (Rx amplifier)

- Combiners (one Tx antenna for all carriers)

- Test and calibration

Modem Part

Converts speech and data to and from radio waves.

- Power Splitters for RF input

- Tranceiver Units (TRXs)

Control Part

Communicates with MSC and radio traffic control.

- Remote Multiplexer (terminates PCM link)

- Signal Terminal (decodes control info)

- EMRPs (control TRXs)

T1/E1 PCM Link

Mobile Switching Center (MSC)

Support Part

Power distribution, fans, external alarms etc.

Power

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.

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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 Autotuned 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.

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General Product Information

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Part 3

System Description

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

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

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

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

2.3 Equipped Microbase Subrack (EMBS) – Main

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

2.4 Equipped Microbase Subrack (EMBS) –

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

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

2.6 Extension Module Regional Processor, Micro

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

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

2.8 Antenna Near Part (ANP)/Radio Frequency

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

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

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

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

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

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

3.2 Standard Conﬁgurations RBS 884 Micro (1900

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

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System Descri tion

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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.

System Descri tion

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

95 cm

61 cm

43 cm



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System Descri tion

–45C 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.

Exhaust

Air Inlet

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

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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

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System Descri tion

Fan Units (4)

Subrack with Plug-In Modules

Backplanes

Battery Compartment (2 Batteries)

Air Filter Access Panel

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

Secondary T1 Surge Suppressor

AC/DC Power

Primary T1 Surge Suppressor

Ground Plate

Heater

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BAT ALM

DOOR ALM

ALM CABLE

ECU CABLE

System Descri tion

SENSORS

BAT COMP

BAT ECU CSU FANS

SUBRK PWR

FAN PWR

CSU

AC CONNECTED

MAIN

OFF

CONVENIENCE OUTLET

PSU

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

MAIN HTR

BAT HTR

GFI OUTLET

• 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. Variablespeed fans are located in the top of the cabinet and the resulting air ﬂow is dimensioned to handle a fully-equipped cabinet. The equipment units and fans are environmentally sealed to protect circuit board traces and components from direct exposure to outside cooling air.

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System Descri tion

Power Supply Unit

TRX

ANP/RFTL

TRX

REMUX

STRM

EMRPM

BLANK PANEL

ALM

ECU

PSU

ANP/RFTL

354786 9 11 12 13

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

The equipment units installed in the cabinet are allocated numbered slots, (slot No.1 to slot No. 13) from left to right, and are dimensioned using Building Modules (for example, BM = 1/10 in = 2.54 mm) as the unit of measurement.

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System 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).

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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

1-2

4-5

6 TRX Transceiver with

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

ANP/RFTL Antenna Near Part/

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

REMUX Remote Multiplexer

STRM Signaling Terminal

EMRPM Extension Module

Name Explanation

Radio Frequency Test Loop

mobile veriﬁcation functionality

Regional Micro

Regional Processor Micro

Comments

Slot 1 is recommended for the control channel TRX.

The ANP provides transmit (TX) and receive (RX) ﬁltering, low-noise amplifying and RFTL functionality.

Unused TRX slots must contain a dummy TRX or RMU.

The TRX in slot 6 is used as a Personal Communications Services (PCS) or MVER for uplink measurements.

The REMUX provides T1/E1 PCM line termination and clock stabilization in the main cabinet.

The STRM decodes control information and controls the EMRPM.

The EMRPM controls the TRXs as well as the REMUX, the ANP/RFTL, and the ALM.

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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.

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

System Descri tion

Slot

ALM Alarm The ALM collects internal and external

Name Explanation

Comments

equipment alarms.

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.

Power Supply Unit

TRX

BLANK

ANP/RFTL

354786 9 11 12 13

TRX

PANEL

CONN

EMRPM

BLANK PANEL

ALM

ECU

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.

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

Slot Name Explanation Comments

System Descri tion

1-2 TRX Transmit TRX

4-5

6 TRX Transceiver with mobile

10 Blank

ANP/RFTL Antenna Near Part/Radio

Frequency Test Loop

TRX Transceiver

veriﬁcation functionality

Blank module

CONN Connection Board The CONN board passes TRX signals to the

EMRPM Extension Module

Module

Dummy TRX The dummy TRX or RMU ensures proper airﬂow

Regional Processor Micro Dummy EMRPM

The TRXs act as digital voice/control channels. Slot 1 is recommended for the control channel TRX.

The ANP provides transmit (TX) and receive (RX) ﬁltering, low-noise ampliﬁer and RFTL functionality.

The TRXs act as digital voice/control channels. Unused TRX slots must contain a dummy TRX or RMU.

The TRX in slot 6 acts as a Personal Communication Services (PCS) or MVER for uplink measurements.

through the unused subrack slot.

backplane. The EMRPM controls the TRXs as well as the

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

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.

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System Descri tion

Table 3-3. PCM System - REMUX

PCM System

T1 Long Haul

Type

Short Haul without external Channel Service Unit (CSU)

with external CSU

Short Haul

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.

Distance to Nearest Active Device (For

Instance, CSU or Repeater)

<200 m REMUX 24

<1800 m

<200 m

REMUX 24

REMUX 32SH

REMUX

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

1 1 TRX 2 2 TRX 3 4 TRX 4 5 TRX 6 6 MVER

Cabinet slot

Function

7 11 9 3

10 7 REMUX

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ALM ANP

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

System Descri tion

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 twoantenna 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

No. of TRX

5 X* X* X* X* X*

1 2 4 5 6 (MVER)

X* X* X*

X* X* X* X*

X X X X*

* Indicates factory installed unit.

TRX slot position in cabinet

X X X*

X X X X*

The maximum speech trafﬁc capacity for a three cabinet conﬁguration is 33 digital voice channels for both the American standard (T1 environment) and the International standard (E1 environment).

In cascaded conﬁgurations, one PCM time slot for speech is lost for each additional signaling link.

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

The combined Antenna Near Part (ANP), Radio Frequency Test Loop (RFTL), and integrated ﬁlter unit provides combining and splitting of RF signals to each antenna.

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

• Combine the output signal of the TRXs

• Filter TX and RX signals

• Protect the TRXs from high reﬂected power

• Pre-amplify and distribute RX signals

• Provide isolation between the TRXs

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• 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.

System Descri tion

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 failsafe 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

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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

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.

ANT 2

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

TX/RX

●

AC POWER (110V/230V)

PCM (T1/E1)

MAIN CABINET

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

●

Two-Antenna ANP

TX/RX

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 fourantenna ANP connected to an antenna array of two TX-only antennas and two TX/RX antennas with duplex ﬁlters.

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

• AD

• DBE

• EFC

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System Descri tion

TX/RX

●

TX/RX

●

AC POWER 110V/230V

PCM (T1/E1)

MAIN CABINET

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

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System Descri tion

TX/RX

●

AC POWER (110V/230V)

PCM (T1/E1)

●

TX/RX

PRIMARY CABINET

Two-Antenna ANP

MAIN CABINET

Two-Antenna ANP

TX/RX

●

Figure 3-10. Two-Sector Site – Each Cabinet with Two External TX/RX Antennas

PRIMARY CABINET

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

●

Two-Antenna ANP

●

Two-Antenna ANP

●

MAIN CABINET

DATA

AC POWER (110V/230V)

PCM (T1/E1)

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

DATA

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System Descri tion

AC POWER (110V/230V)

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.

●

TX/RX

●

PCM (T1/E1)

PRIMARY CABINET

●

Four-Antenna ANP

MAIN CABINET

Four-Antenna ANP

TX/RX

●

DATA

3.2.3.1 Triple Cabinets — 2 TX/RX Antennas

Figure 3-13 on page 3-24 and Figure 3-14 on page 3-24 show three-sector site conﬁgurations with a main and two primary cabinets. Each cabinet has a two-antenna ANP with hybrid combiner ﬁlters and duplex ﬁlters connected to an antenna array of two TX/RX antennas. The primary cabinets are used to provide additional sectors.

The two-antenna ANP for both the cabinet-mounted antenna and the external antenna is offered in the following frequency bands:

• AD

• DBE

• EFC

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System Descri tion

TX/RX TX/RX

●●

TX/RX TX/RX

●●

AC POWER (110V/230V)

PCM (T1/E1)

PRIMARY 1 CABINET

Two-Antenna ANP

MAIN CABINET

Two-Antenna ANP

PRIMARY 2 CABINET

Two-Antenna ANP

TX/RX TX/RX

●

Figure 3-13. Three-Sector Site – Each Cabinets with Two External TX/RX Antennas

PRIMARY 1 CABINET

TX/RX

●

Two-Antenna ANP

TX/RX TX/RX TX/RX

TX/RX

●

MAIN CABINET

●

Two-Antenna ANP

●

PRIMARY 2 CABINET

●

Two-Antenna ANP

TX/RX

DATA

AC POWER (110V/230V)

PCM (T1/E1)

DATA

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.

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System Descri tion

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

• AD

• DBE

• EFC

TX/RX

●

● ●

●

PRIMARY 2 CABINET

Four-Antenna ANP

TX/RX

●

TX/RX

●

TX/RX

●

PRIMARY 1 CABINET

Four-Antenna

MAIN CABINET

Four-Antenna ANP

●

AC POWER (110V/230V)

PCM (T1/E1)

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.

DATA

To maintain transmission quality, it is recommended that no more than four RBS 884 Micro (1900 MHz) base stations be cascaded.

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System Descri tion

PCM (T1/E1)

MSC

Base Station 1 Base Station 2 Base Station 3

PCM (T1/E1)

Figure 3-16. Cascade Conﬁguration

PCM (T1/E1)

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Part 4

Installation

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

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

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

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

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

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

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

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

3.1 Storage and Transport .......... 4-5

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

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.

Installation

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.

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

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.

DANGER!

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.

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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

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

DANGER!

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

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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)

Installation

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.

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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.

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Table 4-1. Tools List

Product Number Description

N/A N/A Horizontal/Vertical Level

Metric Tape Measure

(for wall mounting)

Installation

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

LYB 250 01/14 ESD Wrist Strap and Cable LTT 601 82 Torque Wrench set, including:

LTD 117 02 and LTD 117 14

N/A AC Voltmeter

N/A Tools for connecting the AC Power Cable to a Line

Included in Tool Kit LTT 601 044/1

Included in Tool Case LTT 601 84

Pen

Drill

procedure)

- 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) Unit Extractor Tool (Handle + Button)

(for checking the line voltage)

Power Access Point (if this is the local procedure)

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.

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Installation

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

5.3 Vulnerability

Installation locations should be protected against accidents or vandalism. Use 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

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.

Caution!

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.

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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.

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.

Installation

Caution!

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 N/A Small ﬂat pry bar or crow bar

Large ﬂat-blade screwdriver

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Installation

7.2 Unpacking Procedure

7.2.1 Receiving Materials

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.

Warning!

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.

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7.2.3 Lifting the Cabinet

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.

The RBS 884 Micro (1900 MHz) cabinet will tilt forward when raised by the lifting ears located on the rear of the cabinet.

Installation

DANGER!

Warning!

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.

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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

N/A N/A Horizontal/Vertical Spirit Level N/A N/A N/A Appropriate Size Drill Bit N/A Socket Wrench N/A Ratcheting Box Wrench

8.2 Installation on a Pad

Mechanical lifting equipment capable of supporting cabinet weight (refer to local safety procedures)

Metric Tape Measure

Pen Drill

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.

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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.

Removable front panel for access to cables and mounting points under cabinet

Figure 4-2. Pedestal Base

Height 305 mm (12.0 in)

Depth 432 mm (17.0 in)

Width 610 mm (24.0 in)

Pedestal Base for Pad Mounting the RBS 884 Micro (1900 MHz) cabinet

Knock-outs for cable entry/exit

Vents for air entry into cabinet

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Installation

1 in

(25.4 mm)

3.62 in

(91.95 mm)

10.75 in

(273.05 mm)

2.63 in

(66.80 mm)

Figure 4-3. Bottom View of Pedestal Mount

22.00 in (558.80 mm)

Front of Pedestal

Bottom view of pedestal base showing mounting pattern for securing to concrete pad

1.00 in (25.4 mm)

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.

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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:

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.

Warning!

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Installation

Pole Mount Bracket

T-Bracket

Mounting Strap

L-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.

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Left Side of Mount

Pole Mounting Strap

Installation

Pole Mount

Right Side of Mount

Strap Tension Bracket

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.

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Installation

Pole Mount

Left Side of 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.

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Installation

Pole-Mount Assembly with Straps

Figure 4-7. Pole-Mount Assembly Installations

Pole-Mount Assembly with Bolts

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.

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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.

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8.4 Installation on a Wall

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

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.

Installation

Warning!

T-Bracket

Mounting Bracket

L-Bracket

Figure 4-9. Wall-Mount Assembly

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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 Wood Hollow Hollow wall mounting not recommended

4-1/4-in. x 1-1/4-in. hammer drive anchors 4-1/2-in. No. 14 RH galvanized wood screws

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.

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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.

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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.

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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

Installation

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:

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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.

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BAT ALM

DOOR ALM

ALM CABLE

ECU CABLE

Installation

SENSORS

BAT COMP

BAT ECU CSU FANS

Figure 4-12. AC/DC Distribution Box

SUBRK PWR

FAN PWR

CSU

AC CONNECTED

MAIN

OFF

CONVENIENCE OUTLET

BAT

PSU

MAIN HTR

HTR

GFI OUTLET

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Installation

Power Connector

Battery Tray

Battery Heater

Battery 1

Failed Battery Sensor Connector

Battery 2

Copper Strap

Figure 4-13. Battery Installation in Cabinet

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9.3 Installing AC Power

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.

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

Installation

DANGER!

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.

DOOR

BAT ALM

BAT COMP

BAT ECU CSU FANS

ALM

ALM CABLE

SUBRK PWR

ECU CABLE

FAN PWR

CSU

AC CONNECTED

MAIN

OFF

PSU

SENSORS

BAT

MAIN

HTR

GFI OUTLET

Figure 4-14. AC/DC Distribution Box

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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

Neutral Bus

Installation

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

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

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:

Caution!

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.

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Installation

7. Route the T1(E1) cable through conduit into the base of the

cabinet. Connect cable to the T1(E1) Primary Surge Suppressor located on the right-hand side of the cabinet. See Figure 4-16 on page 4-35 for further information on this procedure. See Figure 419 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

1 (orange)

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

PCM/Prim

Transmit to

Network

Tip

Ring

Installation

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

2 (white)

2 (orange) PCM/Prim Receive from

3 (white)

3 (orange) PCM/Sec

4 (white) PCM/Sec Receive from

4 (orange) PCM/Sec Receive from

5 (white) Not used 5 (orange) Not used

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

RJ45 Conn

PCM/Prim

PCM/Sec

Pin No.

Receive from

Network

Transmit to

Network

Transmit to

Network

T1(E1) Cable

Transmit to

Network

2 Ring

1 Ring

2 Ring

T1(E1) Pair

No.

Tip

Wire

Tip

J1 1

Transmit to

Network

Receive from

Network

Receive from

Network

Transmit to

Network

Transmit to

Network

Receive from

Network

Receive from

Network

2 Ring

Ring

Tip

Ring

Tip

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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

Right Side

Primary 2Primary 1

Figure 4-17. Pedestal Mount

Antenna 4

Antenna 2 Antenna 1

T1(E1) Line AC Power Cabinet

Ground DC Battery

Back-Up

HOLE DIAMETERS

Primary 1 and 2 Antennas T1(E1) Line Power

Cabinet Ground

35.05

28.70

12.70

inches

1.38

1.13

1.13 .50

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

Subrack with Plug-in Units

Installation

Fans (4)

Backplanes

Battery Compartment (2 batteries)

Air Filter Access Panel

AC/DC Power

Primary T1(E1) Surge Suppressor

Heater

Note: Conduit openings in I/O plate fit 3/4" and 1" liquid-tight flexible conduit.

External Battery

AC Power

Earth ground connections below I/O plate

Antenna 4

Antenna 3

Antenna 2

Antenna 1

PCM T1(E1)

Primary 1

Primary 2

Figure 4-18. Cabinet I/O Plate

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

Installation

Subrack with Plug-in Units

Fans (4)

Backplanes

Battery Compartment (2 batteries)

Air Filter Access Panel

Heater

Figure 4-19. T1(E1) Primary Surge Suppressor

AC/DC Power

Ground Plate

12345

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

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.

Installation

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

REMUX

Unit

Slot for Unit Extractor Tool

REMUX

Power

Error

Status 1 Status 2

V24 PCM

Test PCM

Prim PCM

Sec

TLINK 1

TLINK 2

TLINK 3

TLINK 4

AFS Out

AFS In

REMUX

Unit

EMRPM

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

10.1.2 Tools

Installation

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)

Torque Wrench

LTD 117 02 and LTD 117 12

Torx Bit TX10

Unit Screws

Unit Extractor Tool (Handle + Button)

Small screwdriver, pen, or simular tool to set switches

REMUX

Power

Error

Status 1 Status 2

V24

PCM Prim

PCM Sec

AFS Out

AFS In

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

Front

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.

PCM Line Impedance

Top

8 7 6 5 4 3 2 1

8 7

Line Impedance Switch Settings (1-8)

75 ohm (E1) 0111 1101

100 ohm (T1) 1011 1110

120 ohm (E1) 0000 0000

3 2 1

REMUX Boards

ROF 367 211/3 ROF 367 211/1 ROF 367 211/3

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

PCM Primary Line Specification for T1 Short Haul (SH)

Installation

Line Length

Front

Top

8 7 6 5 4 3 2 1

(REMUX boards ROF 367 211/1, /3)

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

Note:

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

This example shows the REMUX set for a T1 Short Haul line up to 40 meters in length, connected to PCM Primary.

PCM Primary Line Specification for E1 and T1

1 0 1 1

Top

8 7 6 5 4 3 2 1

Line Impedance

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)

Front

1 0 0 1

Note: This example shows the REMUX set for an E1 line with 120 ohm impedance, connected to PCM Primary.

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.

PCM Secondary Line Specification for T1 Short Haul (SH)

Top

8 7 6 5 4 3 2 1

Front

1234

5678

1234

5678

1234

5678

1234

1 0 1 1

Note:

Figure 4-25. Settings for the PCM Secondary Line Speciﬁcation, T1 Short Haul

This example shows the REMUX set for a T1 Short Haul line up to 40 meters in length, connected to PCM Secondary.

Line Length

(for REMUX boards

ROF 367 211/1, /3)

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

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

PCM Seconday Line Specification for E1 and T1

Installation

Front

Top

8 7 6 5 4 3 2 1

1234

5678

1234

5678

1234

5678

1234

Line Impedance

75 ohm (E1) 120 ohm (E1) 100 ohm (T1 FCC part 68, opt A)

1 0 0 1

Note: The example shows the REMUX set for an E1 line with 120 ohm impedance, connected to PCM Secondary.

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.

=> 1000 (ROF 367 211/3) => 1001 (ROF 367 211/3) => 1010 (ROF 367 211/1)

Front

PCM Primary Line Code and Frame Mode

= Automatic Adaptation to PCM

(X = 0 or 1) = Alternate Mark Inversion (AMI)

Top

8 7 6 5 4 3 2 1

1234

5678

1234

5678

1234

5678

1234

5678

This example shows the REMUX set for automatic adaptation to line code

Note:

and frame mode on the line connected to PCM Primary (T1 or E1).

and Super Frame = Alternate Mark Inversion (AMI)

and Extended Super Frame = Bit 8 Zero Substitute (B8ZS)

and 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

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

Front

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

Top

8 7 6 5 4 3 2 1

= Cascading disabled

= Cascading enabled

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

CLC Extraction Timeslot for E1

Installation

DIP switch values 0 - 31 = TS 0 - 31 Normal timeslot is TS 16

Top

8 7 6 5 4 3 2 1

Front

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

Timeslot 16 (TS 16)

Link (CLC) extraction, as shown in Figure 4-30 on page 4-48, in accordance with the Conﬁguration Data in the Site Installation Documentation.

=TS 0

=TS 1

=TS 2

=TS 3

=TS 4

=TS 5

=TS 6

=TS 7

=TS 8

=TS 9

=TS 10

=TS 11

=TS 12

=TS 13

=TS 14

=TS 15

=TS 16

=TS 17

=TS 18

=TS 19

=TS 20

=TS 21

=TS 22

=TS 23

=TS 24

=TS 25

=TS 26

=TS 27

=TS 28

=TS 29

=TS 30

=TS 31

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

Installation

CLC Extraction Timeslot for T1

Top

8 7 6 5 4 3 2 1

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

Timeslot 9 (TS 9)

Intervals (UI), as shown in Figure 4-31 on page 4-48 in accordance with the Conﬁguration Data in the Site Installation Documentation.

=TS 1

=TS 2

=TS 3

=TS 4

=TS 5

=TS 6

=TS 7

=TS 8

=TS 9

=TS 10

=TS 11

=TS 12

=TS 13

=TS 14

=TS 15

=TS 16

=TS 17

=TS 18

=TS 19

=TS 20

=TS 21

=TS 22

=TS 23

=TS 24

PCM Jitter and Wander Limit

Top

8 7 6 5 4 3 2 1

Front

= J/W limit 28 Unit Intervals (UI)

= J/W limit 138 Unit Intervals (UI)

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

Top

8 7 6 5 4 3 2 1

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.

Installation

Frequency Selection

= 800 MHz

= 1900 MHz

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

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.

a circuit board.

• 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

Top

= 1

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.

Top

Primary 1

Cabinet

Primary 2

Cabinet

Top

= 3

= 5

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

To ALM Board

Alarm 10 (pins 11 & 31)

Alarm 11 (pins 12 & 32)

Alarm 12 (pins 13 & 33)

Alarm 13 (pins 14 & 34)

} } } }

Customer Alarm Connections

Alarm 10

}

Alarm 11

}

Alarm 12

}

Alarm 13

}

Installation

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.

Serial Number

Product Number

A53047P963 99w03 A53

P/ KRC 121 10/4 R1A

R-State

Figure 4-35. Unit Product Label

3. Record the product number, serial number, and R-state for each unit

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

HRB 102 13 1900 Micro Radio Base Station ROF 137 2775 ECU Unit ROA 119 3157/7 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 KRC 121 106/1 KRF 102 115/1 ANP/RFTL (2) Two Antenna (A+D) KRF 102 115/2 ANP/RFTL (4) Four Antenna (A+D)

in each of the cabinets in the Plant Speciﬁcation (or any other site inventory list). See Table 4-8 on page 4-52.

Product Number Unit

ALM

EMRPM TRX

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)

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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 ROF 367 216/1 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

Dummy EMRPM Dummy REMUX

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

DOOR

BAT ALM

BAT COMP

BAT ECU CSU FANS

ALM

ALM CABLE

SUBRK PWR

ECU CABLE

FAN PWR

CSU

AC CONNECTED

MAIN

OFF

PSU

SENSORS

BAT

MAIN

HTR

GFI OUTLET

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.

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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

Error

ANP/RFTL

Power

Error

Status

TRX

Power

Error

Status

PSU

AC Main

DC Output

Current Limit

TRX

Power

Error

Status

TRX

Power

Status

Primary Cabinet

Error

ANP/RFTL

Power

Error

Status

TRX

Power

Error

Status

PSU

AC Main

DC Output

Current Limit

TRX

Power

Error

Status

TRX

Power

Status

Figure 4-37. The Green Power LEDs and Red Error LEDs

TRX

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

TRX

Power

Error

Status

REMUX

Power

Error

Status 1 Status 2

STRM

Power

Error

Status 1

Status 2

CONN

Power

Error

Status 1

Status 2

EMRPM

Power

Error

Status 1 Status 2

EMRPM

Power

Error

Status 1 Status 2

ALM

Power

Error

Status

ALM

Power

Error

Status

ECU

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 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 to +50C). The cold-



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 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.



C, the warm-up can take

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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.

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.

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Installation

POWER ERROR

STATUS

POWER ERROR

STATUS

TRX 1900

✚

Tx out

ANP/RFTL

Power Error Status

RX/TX

ANT A

ANT B

TX ANT C TX ANT D

TX 2

TX 1

TX 3

TX 4

Figure 4-38. LED on a TRX

16.1 PSU LEDs

16.2 TRX 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.

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

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HARRIS KRC121106-1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual