Nortel Networks Welding System 411 2021 111 User Manual

411-2021-111

Wireless Networks

DualMode Metrocell

Cell Site Description

411-2021-111 Standard 01.01 June 1996

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Wireless Networks

DualMode Metrocell

Cell Site Description

Product release: DualMode Metrocell

Document release: Standard 01.01

Date: June 1996

Document Number: 411-2021-111

1996 Northern Telecom

Printed in the United States of America

NORTHERN TELECOM CONFIDENTIAL: The information contained in this document is the property of Northern

Telecom. Except as specifically authorized in writing by Northern Telecom, the holder of this document shall keep the information

contained herein confidential and shall protect same in whole or in part from disclosure and dissemination to third parties and use

same for evaluation, operation, and maintenance purposes only.

Information is subject to change without notice.

DMS, DMS SuperNode, DMS-MSC, DMS-HLR, DMS-100, and MAP are trademarks of Northern Telecom.

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Publication history

June 1996

Standard 01.01

Initial release of document.

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Contents

Publication history

About this document

Intended audience for this publication ix

How this publication is organized x

Applicability of this publication x

List of terms

Introduction

1-1

Northern Telecom's DualMode Metrocell 1-1

The 800 MHz cellular band 1-4

Cell Site Configurations

Overview 2-1

Omni configuration 2-1

120° sectorized configuration 2-2

60° sectorized configuration 2-4

2-1

3-1

Cell Site Layouts

Omni cell site configuration 3-1

Control Channel redundancy 3-2

Transmit cabling 3-5

Receive cabling 3-7

Component requirement 3-7

120° STSR cell site configuration 3-8

Control Channel redundancy 3-8

Transmit cabling 3-12

Receive cabling 3-17

Component requirement 3-20

60° STSR cell site connection 3-21

Control Channel redundancy 3-21

Transmit cabling 3-27

Receive cabling 3-33

Component requirement 3-37

DMS-MTX DualMode Metrocell Cell Site Description

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vi Contents

Cell Site Components

Customer Service Operations 4-3

4-1

5-1

Power and Grounding Requirements

Safety requirements 5-1

Power and grounding requirements 5-2

Frame power distribution 5-5

System power protection 5-6

Grounding 5-6

Cable Identification 5-9

Datafilling a Metro Cell Site

Datafill Overview 6-1

6-1

Table CLLI 6-2

Table ACUALM 6-2

Table VCHINV, CCHINV, LCRINV 6-5

Appendices

Appendix A: DualMode Metrocell Cell Site Specifications 7-1

System Configuration 7-1

Radio Frequency 7-1

Audio Interface 7-2

Alarms 7-2

DC Power Requirements 7-3

Power Distribution Requirements 7-3

Mechanical 7-3

Packaging 7-4

Environmental 7-4

Regulatory 7-5

Appendix B: Frequency plans 7-7

N=7 Frequency plan (Band A) 7-7

N=7 Frequency plan (Band B) 7-8

N=4 Frequency plan (Band A) 7-9

N=4 Frequency plan (Band B) 7-9

List of figures

Figure 1-1

Figure 1-2

Figure 1-3

Figure 1-4

Figure 2-1

Figure 2-2

Figure 2-3

Figure 3-1

System architecture of a DualMode Metrocell 1-2

Digital ready cellular product 1-2

Basic components of a DualMode Metrocell 1-3

Channel assignment for 800 MHz cellular systems 1-4

Omni (N=7) frequency reuse plan 2-2

120° (N=7) sectorized frequency reuse plan 2-3

60° (N=4) sectorized frequency reuse plan 2-4

Frame layout of an omni Metrocell with one RF frame (front view) 3-

Figure 3-2

Figure 3-3

Block diagram of an omni Metrocell with up to 20 channels in one

RF Frame 3-3

Block diagram of an omni Metrocell with 21 to 24 channels in one

RF Frame 3-4

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Contents vii

Figure 3-4

Figure 3-5

Frame layout of a 120° STSR Metrocell site with one RF frame

(front view) 3-9

Frame layout of a 120° STSR Metrocell site with three RF frames

(front view) 3-9

Figure 3-6

Figure 3-7

Block diagram of a 120° STSR Metrocell using one RF Frame 3-10

Block diagram of a 120° STSR Metrocell using three RF Frames 3-

Figure 3-8

Figure 3-9

Frame layout of a 60° STSR Metrocell with two RF frames (front

view) 3-22

Typical frame layout of a 60° STSR Metrocell with four RF frames

(front view) 3-22

Figure 3-10

Figure 3-11

Figure 5-1

Figure 6-1

Figure 6-2

Block diagram of a 60° STSR Metrocell with two RF Frames 3-23

Block diagram of a 60° STSR Metrocell with four RF Frames 3-25

Power distribution for the CE and RF Frames in a Metrocell 5-5

Example of Metro TRU datafill 6-6

Example of Metro ICRM/TRU hardwire configuration 6-7

List of tables

Table 1-1

Table 3-1

Channel designation and frequency assignment 1-5

RF Frame 1 PA to ATC connection for an omni Metrocell with up to

20 channels 3-5

Table 3-2

RF Frame 1 PA to ATC connection for an omni Metrocell with 21

channels or more 3-6

Table 3-3

Table 3-4

Table 3-5

Table 3-6

RMC to splitter connections for an Omni Metrocell 3-7

Component requirement for an omni Metrocell 3-7

PA to ATC connection for a 120° Metrocell with one RF Frame 3-12

PA to ATC connection for a 120° Metrocell with 20 channels or less

per RF frame for one sector 3-13

Table 3-7

Table 3-8

Table 3-9

Table 3-10

Table 3-11

Table 3-12

Table 3-13

Table 3-14

Table 3-15

Table 3-16

Table 3-17

PA to ATC connection for a 120° Metrocell with 21 channels or

more per RF frame for one sector 3-15

RMC to splitter connections for a 120° STSR Metrocell with one RF

Frame 3-17

RMC to splitter connections for a 120° STSR Metrocell with three

RF Frames 3-18

Component requirement for a 120° STSR Metrocell with one RF

Frame 3-20

Component requirement for a 120° STSR Metrocell with three RF

Frames 3-20

PA to ATC connection for a 60° STSR Metrocell using two RF

Frames 3-28

PA to ATC connection for a 60° STSR Metrocell using four RF

Frames 3-30

RMC to splitter connections for a 60° STSR Metrocell with two RF

Frames 3-33

RMC to splitter connections for a 60° STSR Metrocell with four RF

Frames 3-34

Component requirement for a 60° STSR Metrocell with two RF

Frames 3-37

Component requirement for a 60° STSR Metrocell with four RF

Frames 3-37

DMS-MTX DualMode Metrocell Cell Site Description

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viii Contents

Table 4-1

Table 5-1

Table 5-2

Table 6-1

Table 6-2

Table 6-3

Table 6-4

Table 6-5

Major components of a DualMode Metrocell 4-1

Metrocell DC Power performance requirements 5-3

Cable identification - North America 5-9

Datafill differences of the Metrocell from an NT800DR cell 6-1

Trunk requirement for different Metrocell configurations 6-2

MTX Datafill Alarm Points for Metro RF Frame 6-3

MTX Alarm Points Datafill Numbers for Metro RF Frame 6-4

MTX Alarm Points Datafill Numbers for Metro CE Frame

components 6-4

Table 6-6

NT8X47BA Port Numbers for Metro TRU locations 6-5

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About this document

This publication is one of a set of documents that provide Northern Telecom

(Nortel) customers with information and suggestions on the planning and

maintenance of their DualMode Metrocell system. This set of documents

includes the following manuals:

•

DualMode Metrocell Functional Description Manual

— DualMode Metrocell Cell Site Description

— DualMode Metrocell Common Equipment (CE) Frame Description

— DualMode Metrocell Radio Frequency (RF) Frame Description

DualMode Metrocell Planning and Engineering Guidelines

DualMode Metrocell Installation Manual

•

DualMode Metrocell Operation and Maintenance Manual

DualMode Metrocell Troubleshooting Guidelines

The manual suite for the DualMode Metrocell provides information on cell

site configurations, hardware components, planning and installation

procedures, as well as maintenance and troubleshooting methods.

Intended audience for this publication

The intended audience for this set of manuals is the cell site technicians and

the planning engineers who require information in the maintenance and

planning of a DualMode Metrocell. The Functional Description Manual

provides a technical reference foundation for the other documents in the

documentation suite and is written for all.

The Planning and Engineering Guidelines is written for system planning

personnel in implementing new cells or expanding existing cell sites in a

cellular system.

The Operation and Maintenance Manual and the Troubleshooting Guidelines

that provide information on problem recognition and preventive maintenance

are written for cell site technicians to assist them in troubleshooting and

performing their routine work.

DMS-MTX DualMode Metrocell Cell Site Description

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x About this document

The document suite assumes that the reader possesses a basic knowledge of

the cellular system and radio propagation and is familiar with measurement

units incorporated in the system. Therefore, this document will not provide

detailed information on the theory of switching and radio propagation.

How this publication is organized

This publication is organized to present the following information:

•

an introduction to the DualMode Metrocell Cell Site

the Metrocell cell site configurations; omni, 120° STSR and 60° STSR

the equipment layouts, block diagrams and transmit and receive cabling

for each configuration

•

the cell site components required for each configuration

the power and grounding requirements for a Metrocell cell site

information on datafilling a Metrocell.

Applicability of this publication

This publication is generically applicable to MTX01 feature functionality, yet

captures some BCS-independent environment and implementation issues.

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List of terms

A-Band

The lower 333 channels (Channel 1 - 333) of the cellular band, normally assigned

to a non-wireline operator in the US and Canada.

The Expanded Spectrum provides 83 more channels, 50 (Channel 667 - 716) in

the A’-Band and 33 (channel 991 - 1023) in the A"-Band.

ACU

Alarm Control Unit. A unit that provides discrete alarm monitoring, reporting and

control functions at the cell site. It concentrates all alarm input points at the cell

site and updates the MTX of any status change over redundant data links.

AMPS

ATC

Advanced Mobile Phone Service. Analog cellular phone service.

AutoTune Combiner. A cavity/isolator combiner featuring an automatic tuning

system which monitors the transmitted RF and automatically tunes itself to that

frequency.

B-Band

The upper 333 channels (Channel 334 - 666) of the cellular band, normally

assigned to a wireline operator in the US and Canada.

The Expanded Spectrum provides 83 more channels (Channel 717 - 799) in the

B’-Band.

BER

Bit Error Rate. The ratio of error bits to the total number of transmitted bits. It is

a measurement of quality of the digital connection.

Carrier (RF)

An unmodulated radio signal. Normally, it is a pure sine wave of steady

frequency, amplitude, and phase.

CCH

Control Channel, sometimes referred to as the Signaling Channel which is always

in use to enable call setup and registration.

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xii List of terms

Cell

By theoretical design, it is the geographical representation of the cellular

coverage area or service area defining both the associated size and shape.

CSM2

dBm

Cell Site Monitor 2. A unit that provides analog testing and monitoring

capabilities at the cell site.

Decibels above a milliwatt. Unit of power measurement popular in wireless

telephony, general telephony, audio, and microwave.

dBW

DCC

Decibels above a watt. Unit of measurement for radio power

Digital Color Code. An identifying code associated with the control channel of

the cellular base transmitter which is used to enhance call processing in the

cellular infrastructure.

DLR

Digital Locate Receiver. The TDMA equivalent of the Locating Channel

Receiver. See LCR.

DMS-MTX

DPA

The acronym for Nortel's family of cellular switches: Digital Multiplex Switch -

Mobile Transmission Exchange.

Dual Power Amplifier. A module which contains two discrete power amplifiers

that provide amplification of the RF signal for the two corresponding Transmit

Receive Units (TRU) on the same TRU/DPA shelf.

DRUM

DualMode Radio Unit Monitor. A test and monitor unit capable of radio

communications with any Voice Channel of the local Transmit Receive Units

(TRU) in the digital mode.

Duplexer

A device that consists of two pass or pass/reject filters configured to provide a

common output port for both transmit and receive frequencies.

DVCC

Digital Verification Color Code. The TDMA equivalent of DCC.

Expanded Spectrum. The additional frequency spectrum assigned to the cellular

band. The Expanded Spectrum in the A-Band consists of the A’-Band and the A"-

Band while the B’-Band is the Expanded Spectrum for the B-Band. The

Expanded Spectrum provides a total of 416 channels to each of the two bands.

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List of terms xiii

FDMA

Filter

Frequency Division Multiple Access. A frequency assignment arrangement

whereby all users share the total frequency allotment and each frequency is

assigned to a given user at access on a multiple user access basis.

A frequency selective device which is tuned to pass some frequencies and

attenuate others. Common filter types include high-pass, low pass, band-pass,

and notch filters

Frequency Modulation. A modulation technique that causes the frequency of the

carrier to vary above and below its resting frequency; the rate of which is

determined by the frequency of the modulating signal and the deviation of which

is determined by the magnitude of the modulating signal.

Forward path

The path from cell site to cellular subscriber.

HSMO

High Stability Master Oscillator. A unit that provides a highly stable 4.8 MHz

reference for synchronizing the Transmit Receive Unit (TRU).

ICP

Intelligent Cellular Peripheral. A switch site peripheral that provides an interface

between the cell site and the switch. The ICP also oversees the operations of the

cell site.

ICRM

Integrated Cellular Remote Module. A cell site peripheral that serves as an

interface between the Intelligent Cellular Peripheral (ICP) and the radio

transmission subsystems. The ICRM is designed to support both analog and

digital Radio Frequency (RF) equipment.

Intermodulation. A type of interaction between signals in a nonlinear medium

which produces phantom signals at sum and difference frequencies. These

phantom signals may interfere with reception of legitimate signals occupying the

frequencies upon which they happen to fall.

Isolation

LCR

The attenuation (expressed in dB) between any two signal or radiation points.

Locating Channel Receiver. A radio receiver which is frequency agile and is used

to measure and report the received signal strength, in dBm, of a channel.

Loss

A magnitude of attenuation, expressed in dB, for a given path between any two

points.

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xiv List of terms

Modulation

The process of placing information on an RF carrier. The modulation technique

may involve changing the amplitude, frequency, or phase of the carrier

determined by the modulation index.

NES

Non-expanded Spectrum. The frequency spectrum initially assigned to the

cellular band. The Non-expanded Spectrum provides 333 channels to each of the

two bands, the A-Band and the B-Band.

Omni

An antenna design which permits radiation in essentially all H-Plane azimuths.

In cell sites, an Omni configuration means a single set of omni antennas is used

for all channels.

π/4 DQPSK

Variation of Differential Quadrature Phase Shift Keying used in D_AMPS IS-54

TDMA for improved spectral characteristics and phase resolution. Permissible

phase changes are integral multiples of π/4 radians (45 degrees). π/4 is used to

reduce the peak to root mean square ratio requirements for linear PAs.

Return loss

A logarithmic relationship of the incident signal to the reflected signal as

expressed, in dB, by the following relationship:

Return Loss = 10 log

where Pi = incident power in watts

Pr = reflected power in watts

The strength of the signal, expressed in dB, reflected by a load back into a

transmission line due to impedance mismatch. -14 dB corresponds to a VSWR of

1.5:1.

Reverse path

The path from cellular subscriber terminal to cell site.

Radio Frequency. Electromagnetic energy of the frequency range just above the

audible frequencies and extending to visible light.

RIP

Rack Interface Panel. The RIP is the interface between the cell site power supply

and the cell site equipment.

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List of terms xv

RMC

RSSI

Receive Multicoupler. A device for amplifying the input received from a single

antenna and providing multiple outputs for a group of receivers.

Received Signal Strength Indicator. A measurement of the received RF signal

strength measured at the base station or the subscriber terminal. It is expressed in

dBm.

SAT

Supervisory Audio Tone. A tone of 5970, 6000, or 6030 Hz which modulates the

AMPS voice channel along with voice audio. It is generated by the cell site and

is repeated by the mobile back to the cell site. The repeated SAT is checked by

the cellular system to confirm the continuity of the complete RF path from the

cell site to the subscriber terminal and back to the cell site.

SCC

SAT Color Code. The datafill values corresponding to the various SATs: 00 for

5970 Hz, 01 for 6000 Hz, 10 for 6030 Hz.

Sector

A theoretical wedge-shaped part of the coverage area of one cell site, served by a

specific group of directional antennas on specific channels.

Sectorization

A cell site configuration that consists of two or more sectors in which a different

control and voice channel assignment is given for each sector. In this

arrangement, the datafill and channel assignments for each sector are tailored to

meet the system operational requirements, providing more flexibility in the cell

site configuration compared to an omni configuration but with a decrease in

trunking efficiency.

Signal (RF)

SINAD

Radio frequency energy associated with a particular or desired frequency.

A standard measurement of detected audio quality that is related to signal-to-

noise plus distortion of the RF signal strength at the receiver input terminal. 12

dB SINAD is the commonly used threshold for receiver sensitivity measurements

to determine the weakest-practical analog RF input, in dBm, required by the

receiver. A SINAD of 20 dB is considered good quality and defines the RF input

level needed to fully quiet the receiver.

S/N

Signal-to-Noise ratio. The ratio of signal power to noise power on a radio

channel.

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xvi List of terms

Signaling Tone. In AMPS cellular, a 10 kHz tone transmitted on the Reverse

Voice Channel (RVC) as a precursor to messaging activity, and for certain call-

processing functions (acknowledgments, call termination). Presence of the tone

mutes normal conversational audio.

STSR

TDMA

Sectored-Transmit/Sectored-Receive. A cell configuration in which a different

control and voice frequency assignment is designated for each sector. A

directional antenna system is required for each sector.

Time Division Multiple Access. A modulation and transmission format that

allows a number of digital conversations (three in TDMA-3) to occur within the

same Radio Frequency (RF) channel. Mobile units take turns transmitting/

receiving data on specific time slots of a TDMA frame.

TRU

Transmit Receive Unit. The TRU is a Digital Signal Processing (DSP) based

transceiver capable of two modes of operation, analog (AMPS) and digital

(TDMA).

VCH

Voice Channel. A Radio Frequency (RF) channel used to transmit cellular voice

conversations. The VCH is also an integral part of call setup, handoff, and

disconnect.

VSWR

Voltage Standing Wave Ratio. A measure of the mismatch between the

transmitter source impedance and the load impedance to which it is connected. It

is defined by the following relationship:

Reflected Power

1 +

Forward Power

VSWR =

Reflected Power

1 -

Forward Power

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1-1

Introduction

Northern Telecom's DualMode Metrocell

As cellular systems evolve to the digital format, service providers and mobile

subscribers are confronted by a mixture of analog and digital technologies.

Northern Telecom (Nortel)’s dual mode cellular product allows a smooth

transition from analog to digital technology. It uses Time Division Multiple

Access (TDMA) technology for digital systems and Advanced Mobile Phone

Service (AMPS) technology for analog systems. This evolutionary strategy

enables service providers to gradually upgrade their cellular systems to digital

while providing support of existing analog equipment.

The Nortel cellularsystemsupportingdual mode service includesthe following

components:

•

the DMS-MTX switch containing the Intelligent Cellular Peripheral (ICP)

unit at the mobile switching office

•

dual mode cell sites with the configurable DualMode Radio Units (DRU)

on a Radio Frequency (RF) Frame and the Integrated Cellular Remote

Module (ICRM), on a Common Equipment (CE) Frame at the cell site

•

external and internal interface links.

The Nortel DualMode Metrocell serves as the intelligent interface between a

Digital Multiplex Switch - Mobile Telephone Exchange (DMS-MTX) and its

registered cellular mobiles. It is a dual mode cell that works in both the analog

(AMPS) mode and the digital (TDMA) mode.

The Metrocell is designed for high density, small radius cells in areas where

large traffic capacity is required. It can exist independently or it can be added

to existing cells for increased coverage. The Metrocell provides a reduced

power output for urban applications. The typical power output of the Power

Amplifier (PA) is 22 watts (43.5 dBm).

Figure 1-1 shows the architecture of a DualMode Metrocell system and

Figure 1-2 is a block diagram of the product of the system.

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1-2 Introduction

Figure 1-1

System architecture of a DualMode Metrocell

Trunk

DMS-MTX

PSTN

Digital Transmission

Facility

DualMode

Metrocell

Figure 1-2

Digital ready cellular product

DMS - MTX

DRU

voice &

control

DRUM

CSM2

voice and

control

ICRM

ICP

control

ACU

SWITCH SITE

CELL SITE

There are at least two equipment frames in a Metrocell, a Universal Common

Equipment (CE) Frame and a Metro Radio Frequency (RF) Frame. The cell

site can be expanded or sectorized by adding more Metro RF frames as traffic

grows. The number of Metro RF frames is determined by the cell site

configuration and the channel capacity. Figure 1-3 shows the frames and the

components of a DualMode Metrocell.

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Introduction 1-3

Figure 1-3

Basic components of a DualMode Metrocell

Universal CE Frame

Metro RF Frame

RIP

Duplexer

(one to three)

DRUM

ACU

ATC

HSMO

CSM2

TRU/DPA Shelf

(TRUs & DPAs)

Dual RMC

(one to six)

ATC

TRU/DPA Shelf

(TRUs & DPAs)

ICRM

ATC

TRU/DPA Shelf

(TRUs & DPAs)

Blank Panel

Base

Legend:

RIP

Rack Interface Panel

DRUM

ACU

HSMO

CSM2

RMC

ICRM

ATC

DualMode Radio Unit Monitor

Alarm Control Unit

High Stability Master Oscillator

Cell Site Monitor 2

Receive Multicoupler

Integrated Cellular Remote Module

AutoTune Combiner

TRU

DPA

Transmit Receive Unit

Dual Power Amplifier

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1-4 Introduction

The 800 MHz cellular band

In an 800 MHz North American cellular system, a frequency spectrum of 50

MHz is available for service. Operating from 824 to 894 MHz, including the

expanded spectrum, the system conforms to the AMPS IS-54 protocol.

Typically this range is divided into 832 radio frequency (RF) channelsT.he 832

RF channels are divided into two bands,A and B. The two bands are identified

as follows:

•

Band A—for Non-Wireline Operators

Band B—for Wireline Operators.

Each frequency band has 416 RF channels. Of these 416 RF channels,

typically 21 (depending on the frequency plan) are assigned as the Control

Channels (CCH) and the remaining 395 are Voice Channels (VCH). See

Figure 1-4 and Table 1-1.

Figure 1-4

Channel assignment for 800 MHz cellular systems

Base Station Frequency (MHz)

835

RX 824 825

TX 869 870

835 846.5 849 851

890 891.5 894 896

A-Band CCH

B-Band CCH

880

Band

991 1

1023

333

716

799

R=Reserved

666

Channel Number

Channel assignment

Band A (416 channels) Band B (416 channels)

Control channels

313 - 333 (21)

688 - 708 (21)

334 - 354 (21)

737 - 757 (21)

Optional—TDMA secondary

control channels

Voice channels

001 - 312 (312)

667 - 716 (50)

991 - 1023 (33)

355 - 666 (312)

717 - 799 (83)

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Introduction 1-5

Table 1-1

Channel designation and frequency assignment

System

Channel

Cell site receive

frequency (MHz)

Cell site transmit

frequency (MHz)

Not used

990

824.010

869.010

991 - 1023

1 - 333

824.040 - 825.000

825.030 - 834.990

835.020 - 844.980

845.010 - 846.480

846.510 - 848.970

869.040 - 870.000

870.030 - 879.990

880.020 - 889.980

890.010 - 891.480

891.510 - 893.970

334 - 666

667 - 716

717 - 799

A’

B’

The relationship between the channel number (N) and the frequency is:

Channel number: 1 ≤ N ≤ 799

Receiver frequency (in MHz) = 0.03N + 825.000

Transmit frequency (in MHz) = 0.03N +870.000

Channel number: 990 ≤ N ≤ 1023

Receiver frequency (in MHz) = 0.03(N - 1023) + 825.000

Transmit frequency (in MHz) = 0.03(N - 1023) + 870.000

Both non-expanded and expanded spectrums are shown in Appendix B for the

N=7 and N=4 frequency groups.

Important

For ALL Metrocell cell site configurations, the frequency

plan used should have a minimum of 21 channel spacing

(630 kHz) between the RF channels.

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1-6 Introduction

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2-1

Cell Site Configurations

Overview

The DualMode Metrocell can be configured in the following ways:

•

Omni-directional transmit/receive

120° Sectored Transmit Sectored Receive (STSR)

60° Sectored Transmit Sectored Receive (STSR)

The majority of systems may begin as Omni-directional to minimize startup

costs. As the subscriber traffic increases, the Omni configuration may reach

its maximum traffic capacity. At that time it will be necessary to provide

additional capacity through expanded spectrum, 120 degree sectorization, 60

degree sectorization, or frequency borrowing.

It is important that the operator selects a frequency plan before the Omni

configuration is installed. If not, future expansions will be very difficult. The

most common frequency plans are:

•

7 Cell Cluster (N=7)—This frequency plan allows proper expansion from

Omni to 120 degree sectorization (see Figure 2-1 and Figure 2-2).

•

4 or 12 Cell Cluster (N=4 or N=12)—This frequency plan allows proper

expansion from Omni to 60 degree sectorization (see Figure 2-3).

Both non-expanded and expanded spectrums are shown in Appendix B for the

N=7 and N=4 frequency groups.

Omni configuration

In an Omni (N=7) configuration, the 416 RF channels are divided among a

group of seven cells (often known as a cluster). Each cell consists of a

maximum of 59 or 60 RF channels (four cells with 59 channels and three cells

with 60 channels, where three of the 59 or 60 channels are Control channels).

The RF channels are reused by other cell clusters. Frequency reuse refers to

the use of RF channels on the same carrier frequency in different areas which

are separated from one another by the greatest possible distance so that co-

channel interference is minimized.

DMS-MTX DualMode Metrocell Cell Site Description

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2-2 Cell Site Configurations

Figure 2-1 shows the layout of an Omni (N=7) frequency reuse plan;. The RF

channels used in Cell 1 of a cluster are reused in Cell 1 of other clusters,

channels in Cell 2 are reused in Cell 2 of other clusters and so on.

Figure 2-1

Omni (N=7) frequency reuse plan

CELL 6

CELL 5

CELL 4

CELL 6

CELL 1

CELL 3

CELL 7

CELL 2

CELL 5

CELL 4

CELL 1

CELL 6

CELL 3

CELL 7

CELL 2

CELL 7

CELL 1

CELL 2

CELL 5

CELL 4

CELL 3

120° sectorized configuration

In a 120° (N=7) sectorized configuration, the 416 RF channels are divided

among a cluster of seven cells. Each cell contains a maximum of 59 or 60 RF

channels, with three Control channels for each cell. Since each cell is further

divided into three sectors, each sector will contain a maximum of 19 or 20 RF

channels, with one Control channel for each sector. The available RF

channels are reused by other groups of cells within the system.

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Cell Site Configurations 2-3

Figure 2-2 shows the layout of a 120° (N=7) sectorized frequency reuse plan.

The RF channels used in Cell 1 of a cluster are reused in Cell 1 of other

clusters, channels in Cell 2 are reused in Cell 2 of other clusters and so on.

This arrangement will have the RF channels using the same carrier frequency

in different areas to be separated from one another by the greatest possible

distance to minimize co-channel interference.

However, sectorization (by virtue of the modified coverage areas and

directional antenna usage) permits greater reuse of frequencies for a given

C/I ratio.

Figure 2-2

120° (N=7) sectorized frequency reuse plan

Sector

CELL 6

Sector

CELL 5

CELL 7

Sector

CELL 1

Sector

CELL 2

CELL 4

Sector

CELL 3

CELL 6

Sector

CELL 6

CELL 7

CELL 5

Sector

CELL 5

CELL 1

CELL 7

Sector

CELL 1

CELL 2

CELL 4

Sector

CELL 4

CELL 2

CELL 3

Sector

CELL 3

Sector

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2-4 Cell Site Configurations

60° sectorized configuration

In a 60° (N=4) sectorized configuration, the 416 RF channels are divided

among a group of four cells. Each cell contains a maximum of 104 RF

channels, with six Control channels for each cell. Since each cell is further

divided into six sectors, each sector will contain a maximum of 16 or 17 RF

channels, with one Control channels for each sector. The RF channels are

reused by other groups of cells.

Figure 2-3 shows the layout of a 60° (N=4) sectorized frequency reuse plan.

The RF channels used in Cell 1 of a cluster are reused in Cell 1 of other

clusters, channels in Cell 2 are reused in Cell 2 of other clusters and so on.

This arrangement will have the RF channels on the same carrier frequency in

different areas to be separated from one another by the greatest possible

distance so that co-channel interference is minimized.

However, 60° sectorization is difficult to expand and optimize due to a more

demanding environment of frequency re-use.

Figure 2-3

60° (N=4) sectorized frequency reuse plan

Sector

CELL 2

Sector

CELL 1

CELL 3

Sector

CELL 4

Sector

CELL 2

Sector

CELL 3

CELL 1

CELL 3

Sector

CELL 4

CELL 2

Sector

CELL 1

CELL 3

Sector

CELL 4

Sector

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3-1

Cell Site Layouts

This chapter provides information on the layout and cabling of the different

DualMode Metrocell configurations.

Important

For ALL Metrocell cell site configurations, the frequency

plan used should have a minimum of 21 channel spacing

(630 kHz) between the channels in one RF Frame.

Note: The DualMode Metrocell supports only Transmit Receive Units

(TRU) with Product Engineering Code (PEC) NTAX98AA. No other

radios can be used. The NTAX98AA TRU supports full digital and analog

transmissions in accordance with IS-54 and IS-41 standards.

Omni cell site configuration

The Metrocell in an omni configuration uses at least two equipment frames,

one CE Frame and one RF frame (see Figure 3-1). With only one RF frame,

the maximum number of Voice Channels (VCH) supported by the cell site is

22 since two of the 24 TRUs have to be assigned as the Control Channel

(CCH) and the Locate Channel Receiver (LCR). As traffic grows, four

additional RF frames can be added to the site to accommodate up to a

maximum of 120 channels, including the CCH and the LCR.

An RF Frame with up to 20 channels requires only one duplexer in the RF

Frame and one TX/RX antenna. The outputs of the three AutoTune

Combiners (ATC) are combined through one phasing transformer (located at

ATC 2) and then connected to Duplexer position 2. This configuration

requires a RX only antenna for the diversity receive function of the cell. See

Figure 3-2.

An RF Frame with 21 channels or more requires two duplexers in the RF

Frame and two TX/RX antennas. The outputs of the lower and middle ATCs

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3-2 Cell Site Layouts

(ATC 1 and ATC 2) are combined through one phasing transformer (located at

ATC 2) and then connected to Duplexer position 2 and the main TX/RX

Antenna. The output of the upper ATC (ATC 3) is connected to Duplexer

position 3 and the diversity TX/RX Antenna. This arrangement is used to

meet the requirement of a minimum of 21 channel spacing (630 kHz)

between the channels in one RF Frame. This configuration requires a TX/RX

antenna to perform the diversity receive function of the cell. See Figure 3-3.

Control Channel redundancy

Control Channel (CCH) redundancy is commonly provided with a Locate

Channel Receiver (LCR) backup. The CCH is assigned to position 1 on the

TRU/DPA Shelf 1 and the LCR is assigned to position 4 on the same shelf.

This arrangement will have the CCH and the LCR supplied on a different DC

power feed and a TCM card. No RF coaxial switch is required since the

cavity of the LCR position on the ATC will tune to the CCH frequency when

backup is required.

Figure 3-1

Frame layout of an omni Metrocell with one RF frame (front view)

CE Frame

RF Frame 1

RF RIP

Duplexer Duplexer Duplexer

CE RIP

DRUM

Position 3 Position 2 Position 1

ACU

ATC 3

HSMO

DPA DPA

11 12

CSM2

TRU/DPA

Shelf 3

RMC 1

DPA DPA

ATC 2

Blank Panel

ICRM

DPA DPA

TRU/DPA

Shelf 2

DPA DPA

ATC 1

DPA DPA

TRU/DPA

Shelf 1

Blank Panel

Base

DPA DPA

Base

Note: For a frame with up to 20 channels, only one duplexer (located in

position 2) is required.

For a frame with 21 channels or more, two duplexers (located in

positions 2 and 3) are required.

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Cell Site Layouts 3-3

Figure 3-2

Block diagram of an omni Metrocell with up to 20 channels in one RF Frame

RF Frame 1

(Note 1)

See Table 3-3 for

RMC/TRU Shelf connection

Antenna

(Main

receive)

Control Channel

(Note 2)

Duplexer

Position 2

ANT

DPA 1

Antenna

(Diversity

receive)

TRU/DPA

Shelf 1

ATC 1

DPA 4

See Table 3-1 for

PA/ATC connection

DPA 5

Notes:

ATC 2

TRU/DPA

1. For diagram clarity, only one RF Frame is

shown. Other RF Frames with 20 channels

or less are connected and operated

Shelf 2

identically to that of RF Frame 1.

2. TRU1 at TRU/DPA Shelf 1 of RF Frame 1 is

assigned as the CCH and TRU4 at the same

shelf is assigned as the backup CCH.

DPA 8

DPA 9

TRU/DPA

Shelf 3

ATC 3

DPA 10

CE Frame

ICRM

HSMO

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3-4 Cell Site Layouts

Figure 3-3

Block diagram of an omni Metrocell with 21 to 24 channels in one RF Frame

See Table 3-3 for

RMC/TRU Shelf connection

RF Frame 1

(Note 1)

Antenna

(Main

receive)

Control Channel

(Note 2)

Duplexer

Position 2

ANT

DPA 1

Antenna

(Diversity

receive)

RX Duplexer ANT

TRU/DPA

Shelf 1

Position 3

ATC 1

DPA 4

DPA 5

See Table 3-2 for

PA/ATC connection

Notes:

ATC 2

TRU/DPA

1. For diagram clarity, only one RF Frame is

shown. Other RF Frames with 21 channels

or mor are connected and operated

Shelf 2

identically to that of RF Frame 1.

2. TRU1 at TRU/DPA Shelf 1 of RF Frame 1 is

assigned as the CCH and TRU4 at the same

shelf is assigned as the backup CCH.

DPA 8

DPA 9

TRU/DPA

Shelf 3

ATC 3

DPA 12

CE Frame

ICRM

HSMO

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Cell Site Layouts 3-5

Transmit cabling

In the transmit path, the output of each Transmit Receive Unit (TRU) is

connected to the input of each corresponding power amplifier (PA) on the

Dual Power Amplifier (DPA) module. The output of each power amplifier

(PA) is input to an 8-channel AutoTune Combiner (ATC).

The output of the ATC is connected to the Transmit (TX) port of the duplexer.

For RF Frames using more than one ATC, the outputs of the ATCs are

combined together and connected to the TX port of the duplexer. The

duplexer serves as the interface between the antenna system and the RF

frame. Table 3-1 lists the connection between the PAs and the ATC for an RF

Frame with up to 20 channels. Table 3-2 lists the connection between the PAs

and the ATC for an RF Frame with 21 channels or more.

Table 3-1

RF Frame 1 PA to ATC connection for an omni Metrocell with up to 20 channels

From

Through

ATC1 - Port 1

DPA 1 - Port1 (CCH)

DPA 1 - Port2

DPA 2 - Port1

DPA 2 - Port2 (LCH)

DPA 3 - Port1

DPA 3 - Port2

DPA 4 - Port1

DPA 4 - Port2

DPA 5 - Port1

DPA 5 - Port2

DPA 6 - Port1

DPA 6 - Port2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

DPA 9 - Port1

DPA 9 - Port 2

DPA 10 - Port1

DPA 10 - Port2

ATC1 - Port 2

ATC1 - Port 3

ATC1 - Port 4

ATC1 - Port 5

ATC1 - Port 6

ATC1 - Port 7

ATC1 - Port 8

ATC2 - Port 1

ATC2 - Port 2 Duplexer

TRU/DPA

Shelf 1

ATC Shelf 1

Antenna

(Main receive)

Position 2

ATC2 - Port 3

TRU/DPA

Shelf 2

ATC Shelf 2

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4

TRU/DPA

Shelf 3

ATC Shelf 3

Note: Additional RF Frames with 20 channels or less are connected to

their respective TX/RX antennas in the same way as RF Frame 1.

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3-6 Cell Site Layouts

Table 3-2

RF Frame 1 PA to ATC connection for an omni Metrocell with 21 channels or more

From

Through

ATC1 - Port 1

DPA 1 - Port1 (CCH)

DPA 1 - Port2

DPA 2 - Port1

DPA 2 - Port2 (LCH)

DPA 3 - Port1

DPA 3 - Port2

DPA 4 - Port1

DPA 4 - Port2

DPA 5 - Port1

DPA 5 - Port2

DPA 6 - Port1

DPA 6 - Port2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

DPA 9 - Port1

DPA 9 - Port 2

DPA 10 - Port1

DPA 10 - Port2

DPA 11 - Port1

DPA 11 - Port 2

DPA 12 - Port1

DPA 12 - Port2

ATC1 - Port 2

ATC1 - Port 3

TRU/DPA

Shelf 1

ATC Shelf 1

ATC Shelf 2

ATC Shelf 3

ATC1 - Port 4

ATC1 - Port 5

ATC1 - Port 6

ATC1 - Port 7

ATC1 - Port 8 Duplexer

Antenna

(Main receive)

Position 2

ATC2 - Port 1

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4 Duplexer

TRU/DPA

Shelf 2

TRU/DPA

Shelf 3

Antenna

(Diversity

receive)

Position 3

ATC3 - Port 5

ATC3 - Port 6

ATC3 - Port 7

ATC3 - Port 8

Note: Additional RF Frames with 21 channels or more are connected to

their respective TX/RX antennas in the same way as RF Frame 1.

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Cell Site Layouts 3-7

Receive cabling

In the reverse path, the receive signal from the main antenna is connected to

the A-input of the Receive Multicoupler (RMC) through the receive port of

the duplexer. The diversity antenna connects directly to the B-input of the

RMC. Distribution of the reverse path frequencies is accomplished by RF

splitters within each RF frame.

Table 3-3 shows the connection between the RMC and the splitters.

Table 3-3

RMC to splitter connections for an Omni Metrocell

From

Through

Splitter 1

Main antenna

RMC 1A - A1

RMC 1B - B1

RMC 1A - A2

RMC 1B - B2

RMC 1A - A3

RMC 1B - B3

TRU Shelf 1

TRU Shelf 2

TRU Shelf 3

Diversity antenna

Main antenna

Splitter 4

Splitter 1

Splitter 4

Splitter 1

Splitter 4

Diversity antenna

Main antenna

Diversity antenna

Component requirement

Table 3-4 lists the components required for a Metrocell with one to five RF

Frames. An omni cell site requires only one Receive Multicoupler (RMC).

Table 3-4

Component requirement for an omni Metrocell

No. of RF

Frames

No. of

TRUs

No. of

ATCs

Duplexer

per frame

ICRM TCM

Port cards

No. of

antennas

Configuration

with up to 20

channels per

RF Frame

3 to 20

21 to 40

41 to 60

61 to 80

81 to 100

3 to 24

1 to 3

4 to 6

1 TX/RX, 1 RX

2 TX/RX

7 to 9

2 TX/RX, 1 TX

2 TX/RX, 2 TX

2 TX/RX, 3 TX

2 TX/RX

10 to 12

13 to 15

1 to 3

Configuration

with up to 24

channels per

RF Frame

25 to 48

49 to 72

73 to 96

97 to 120

4 to 6

2 TX/RX, 2 TX

2 TX/RX, 4 TX

2 TX/RX, 6 TX

2 TX/RX, 8 TX

7 to 9

10 to 12

13 to 15

Note: An additional TCM port card is required for the DRUM, the ACU

and the CSM2.

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3-8 Cell Site Layouts

120° STSR cell site configuration

The Metrocell in a 120° STSR configuration uses at least two equipment

frames, one CE Frame and one RF frame (see Figure 3-4). Each TRU/DPA

Shelf and its associated ATC on the RF frame support one of the three sectors.

With only one RF frame, the maximum number of Voice Channels (VCH)

supported by each sector is six since two of the eight TRUs on the TRU shelf

have to be assigned as the Control Channel (CCH) and the Locate Channel

Receiver (LCR). A 120° STSR Metrocell with one RF Frame requires six

antennas; one TX/RX antenna and one RX only antenna for each sector (see

Figure 3-6). As traffic grows, two additional RF frames can be added to

accommodate more VCHs (see Figure 3-5).

A 120° STSR Metrocell with three RF Frames requires six antennas. It may

be three TX/RX antennas and three RX only antennas or six TX/RX antennas

depending on the number of channels in each RF Frame. An RF Frame with

20 channels or less in one sector requires one duplexer in the RF Frame and

one TX/RX antennas for that sector. The outputs of the three combiners are

combined through one phasing transformer (located at ATC 2) and connected

to Duplexer position 2 in that RF Frame. The output of the duplexer is then

connected to the main TX/RX Antenna of that sector).

An RF Frame with 21 channels or more in one sector requires two duplexers

in the RF Frame and two TX/RX antennas for that sector. The outputs of ATC

1 and ATC 2 are combined through one phasing transformer (located at ATC

2) and connected to Duplexer position 2 in that RF Frame. The output of the

duplexer is then connected to main TX/RX Antenna of that sector. The output

of ATC 3 is connected to Duplexer position 3 and then to the diversity TX/RX

Antenna of that sector. This arrangement is used to meet the requirement of a

minimum of 21 channel spacing (630 kHz) between the channels in one RF

Frame. Figure 3-5 shows the frame layout and Figure 3-7 shows the block

diagram of a 120° STSR Metrocell with three RF Frames.

Control Channel redundancy

Control Channel (CCH) redundancy is commonly provided with a Locate

Channel Receiver (LCR) backup. With one RF Frame, the CCH of each

sector is assigned to position 1 on the TRU/DPA Shelf of that sector and the

LCR is assigned to position 4 on the same shelf. With three RF Frames, the

CCH of each sector is assigned to position 1 on TRU/DPA Shelf 1 of that

sector and the LCR is assigned to position 4 on the same shelf. This

arrangement will have the CCH and the LCR supplied on a different DC

power feed and a TCM card. No RF coaxial switch is required since the

cavity of the LCR position on the ATC will tune to the CCH frequency when

backup is required.

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Cell Site Layouts 3-9

Figure 3-4

Frame layout of a 120° STSR Metrocell site with one RF frame (front view)

CE Frame

RF Frame 1

RF RIP

CE RIP

Duplexer Duplexer Duplexer

Position 3 Position 2 Position 1

(Sector Z) (Sector Y) (Sector X)

DRUM

ATC 3

(Sector Z)

ACU

HSMO

DPA DPA

TRU/DPA

Shelf 3

(Sector Z)

CSM 2

RMC 1 (Sector X)

RMC 2 (Sector Y)

RMC 3 (Sector Z)

DPA DPA

ATC 2

(Sector Y)

Blank Panel

DPA DPA

TRU/DPA

Shelf 2

(Sector Y)

DPA DPA

ICRM

ATC 1

(Sector X)

DPA DPA

TRU/DPA

Shelf 1

(Sector X)

Blank Panel

Base

DPA DPA

Base

Figure 3-5

Frame layout of a 120° STSR Metrocell site with three RF frames (front view)

RF Frame 1

(Sector X)

RF Frame 2

(Sector Y)

RF Frame 3

(Sector Z)

CE Frame

RF RIP

CE RIP

Duplexer Duplexer Duplexer

Duplexer Duplexer Duplexe

DRUM

Position 3 Position 2 Position 1

ACU

ATC 3

HSMO

DPA DPA

11 12

DPA DPA

CSM 2

TRU/DPA

Shelf 3

RMC 1 (Sector X)

RMC 2 (Sector Y)

RMC 3 (Sector Z)

DPA DPA

ATC 2

Blank Panel

DPA DPA

TRU/DPA

Shelf 2

DPA DPA

ICRM

ATC 1

DPA DPA

TRU/DPA

Shelf 1

Blank Panel

Base

DPA DPA

Base

Note:

For a frame with up to 20 channels, only one duplexer (located in position

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3-10 Cell Site Layouts

2) is required.

For a frame with 21 channels or more, two duplexers (located in positions

2 and 3) are required.

Figure 3-6

Block diagram of a 120° STSR Metrocell using one RF Frame

See Table 3-8 for

RMC/TRU Shelf connection

See Table 3-5 for

PA/ATC connection

RF Frame 1

Antenna

(Sector X

Main

Control Channel

for Sector X

Duplexer

Position 1

receive)

ANT

DPA 1

Antenna

(Sector X

Diversity

receive)

TRU/DPA

Shelf 1

ATC 1

DPA 4

DPA 5

Antenna

(Sector Y

Main

Control Channel

for Sector Y

Duplexer

Position 2

receive)

ANT

Antenna

(Sector Y

Diversity

receive)

TRU/DPA

Shelf 2

ATC 2

DPA 8

DPA 9

Antenna

(Sector Z

Main

Control Channel

for Sector Z

Duplexer

Position 3

receive)

ANT

Antenna

(Sector Z

Diversity

receive)

TRU/DPA

Shelf 3

ATC 3

DPA 12

CE Frame

ICRM

HSMO

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Cell Site Layouts 3-11

Figure 3-7

Block diagram of a 120° STSR Metrocell using three RF Frames

See Table 3-9 for

RF Frame 1

See Tables 3-6 and 3-7

RMC/TRU Shelf connection

Note 1

Antenna

(Sector X

Main

for PA/ATC connection

Duplexer

Position 2

Control Channel

for Sector X

ANT

receive)

DPA 1

Antenna

(Sector X

Diversity

receive)

RX Duplexer ANT

TRU/DPA

Shelf 1

Position 3

ATC 1

Note 2

DPA 4

DPA 5

Antenna

(Sector Y

Main

Duplexer

Position 2

ANT

receive)

RF Frame 2

Antenna

(Sector Y

Diversity

receive)

TRU/DPA

Shelf 2

ATC 2

RX Duplexer ANT

Position 3

DPA 8

Antenna

(Sector Z

Main

Duplexer

Position 2

DPA 9

ANT

receive)

RF Frame 3

Antenna

(Sector Z

Diversity

receive)

TRU/DPA

Shelf 3

ATC 3

RX Duplexer ANT

Position 3

DPA 12

CE Frame

ICRM

HSMO

Notes:

1. For diagram clarity, only RF Frame 1 is shown. RF Frames 2 and 3

are connected and operated identically to that of RF Frame 1.

2. For RF Frames with 20 channels or less, the Duplexer in position 3 is

not required. The outputs of the three ATCs are combined together

and connected to the Duplexer in position 2. See Table 3-6.

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3-12 Cell Site Layouts

Transmit cabling

In the transmit path, the output of each Transmit Receive Unit (TRU) is

connected to the input of each corresponding power amplifier (PA) on the

Dual Power Amplifier (DPA) module.

For a 120° STSR cell site with one RF Frame, each TRU/DPA Shelf and its

associated ATC and duplexer serve for one of the three sectors; TRU/DPA

Shelf 1, ATC 1 and Duplexer 1 for Sector X, TRU/DPA Shelf 2, ATC 2 and

Duplexer 2 for Sector Y and TRU/DPA Shelf 3, ATC 3 and Duplexer 3 for

Sector Z. The output of each power amplifier (PA) is input to an 8-channel

AutoTune Combiner (ATC). The output of each 8-channel ATC is connected

to the Transmit (TX) port of each corresponding duplexer. Table 3-5 lists the

connection between the PAs and the ATC for a 120° STSR cell site using one

RF Frame for three sectors.

For a 120° STSR cell site with three RF Frames, each frame serves for one of

the three sectors; RF Frame 1 for Sector X, RF Frame 2 for Sector Y and RF

Frame 3 for Sector Z. With an RF Frame holding up to 20 channels, only one

duplexer is required. With 21 or more channels in one RF Frame, two

duplexers are required. Table 3-6 lists the connection between the PAs and the

ATC for an RF Frame with up to 20 channels. Table 3-7 lists the connection

between the PAs and the ATC for an RF Frame with 21 channels or more.

Table 3-5

PA to ATC connection for a 120° Metrocell with one RF Frame

From

Through

ATC1 - Port 1

DPA 1 - Port1 (CCH)

DPA 1 - Port2

DPA 2 - Port1

DPA 2 - Port2 (LCR)

DPA 3 - Port1

DPA 3 - Port2

DPA 4 - Port1

DPA 4 - Port2

DPA 5 - Port1 (CCH)

DPA 5 - Port2

DPA 6 - Port1

DPA 6 - Port2 (LCR)

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

ATC1 - Port 2

ATC1 - Port 3

TRU/DPA

Shelf 1

ATC Shelf 1

ATC1 - Port 4 Duplexer

Antenna

(Mainreceive

for Sector X)

Position 1

ATC1 - Port 5

ATC1 - Port 6

ATC1 - Port 7

ATC1 - Port 8

ATC2 - Port 1

ATC2 - Port 2

ATC2 - Port 3

TRU/DPA

Shelf 2

ATC Shelf 2

ATC2 - Port 4 Duplexer

Antenna

(Mainreceive

for Sector Y)

Position 2

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

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Cell Site Layouts 3-13

Table 3-5

PA to ATC connection for a 120° Metrocell with one RF Frame (continued)

From

Through

ATC3 - Port 1

DPA 9 - Port1 (CCH)

DPA 9 - Port 2

ATC3 - Port 2

ATC3 - Port 3

DPA 10 - Port1

TRU/DPA

Shelf 3

DPA 10 - Port2 (LCR) ATC Shelf 3

DPA 11 - Port1

ATC3 - Port 4 Duplexer

Antenna

(Mainreceive

for Sector Z)

Position 3

ATC3 - Port 5

DPA 11 - Port2

ATC3 - Port 6

ATC3 - Port 7

ATC3 - Port 8

DPA 12 - Port1

DPA 12 - Port2

Table 3-6

PA to ATC connection for a 120° Metrocell with 20 channels or less per RF frame for one sector

From

Through

ATC1 - Port 1

DPA 1 - Port1 (CCH)

DPA 1 - Port2

ATC1 - Port 2

RF Frame 1 DPA 2 - Port1

ATC1 - Port 3

TRU/DPA

Shelf 1

DPA 2 - Port2 (LCR)

DPA 3 - Port1

DPA 3 - Port2

DPA 4 - Port1

DPA 4 - Port2

DPA 5 - Port1

DPA 5 - Port2

RF Frame 1

ATC Shelf 1

ATC1 - Port 4

ATC1 - Port 5

ATC1 - Port 6

ATC1 - Port 7

ATC1 - Port 8

ATC2 - Port 1 RF Frame 1

Antenna

(Main receive

for Sector X)

Duplexer

Position 2

ATC2 - Port 2

RF Frame 1 DPA 6 - Port1

ATC2 - Port 3

TRU/DPA

Shelf 2

DPA 6 - Port2

RF Frame 1

ATC Shelf 2

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

DPA 9 - Port1

RF Frame 1 DPA 9 - Port 2

TRU/DPA

Shelf 3

RF Frame 1

ATC Shelf 3

DPA 10 - Port1

DPA 10 - Port2

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3-14 Cell Site Layouts

Table 3-6

PA to ATC connection for a 120° Metrocell with 20 channels or less per RF frame for one sector

(continued)

From

DPA 1 - Port1 (CCH)

DPA 1 - Port2

Through

ATC1 - Port 1

ATC1 - Port 2

DPA 2 - Port1

ATC1 - Port 3

RF Frame 2 DPA 2 - Port2 (LCR)

RF Frame 2

ATC Shelf 1

ATC1 - Port 4

TRU/DPA

Shelf 1

DPA 3 - Port1

ATC1 - Port 5

DPA 3 - Port2

ATC1 - Port 6

DPA 4 - Port1

DPA 4 - Port2

ATC1 - Port 7

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port2

ATC2 - Port 2 RF Frame 2

Antenna

Duplexer

Position 2

(Main receive

for Sector Y)

DPA 6 - Port1

ATC2 - Port 3

RF Frame 2 DPA 6 - Port2

RF Frame 2

ATC Shelf 2

ATC2 - Port 4

TRU/DPA

Shelf 2

DPA 7 - Port1

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4

ATC1 - Port 1

ATC1 - Port 2

ATC1 - Port 3

ATC1 - Port 4

ATC1 - Port 5

ATC1 - Port 6

ATC1 - Port 7 RF Frame 3

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

DPA 9 - Port1

RF Frame 2 DPA 9 - Port 2

RF Frame 2

ATC Shelf 3

TRU/DPA

Shelf 3

DPA 10 - Port1

DPA 10 - Port2

DPA 1 - Port1 (CCH)

DPA 1 - Port2

DPA 2 - Port1

RF Frame 3 DPA 2 - Port2 (LCR)

RF Frame 3

ATC Shelf 1

TRU/DPA

Shelf 1

DPA 3 - Port1

DPA 3 - Port2

DPA 4 - Port1

DPA 4 - Port2

Antenna

(Main receive

for Sector Z)

Duplexer

Position 2

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port2

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

RF Frame 3 DPA 6 - Port1

RF Frame 3

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 6 - Port2

DPA 7 - Port1

DPA 7 - Port 2

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Cell Site Layouts 3-15

Table 3-6

PA to ATC connection for a 120° Metrocell with 20 channels or less per RF frame for one sector

(continued)

From

Through

RF Frame 3 DPA 8 - Port1

RF Frame 3

ATC 2

ATC2 - Port 7

ATC2 - Port 8

TRU/DPA

DPA 8 - Port 2

Shelf 2

DPA 9 - Port1

ATC3 - Port 1 RF Frame 3

Antenna

Duplexer

Position 2

(Main receive

for Sector Z)

RF Frame 3 DPA 9 - Port 2

RF Frame 3

ATC Shelf 3

ATC3 - Port 2

TRU/DPA

Shelf 3

DPA 10 - Port1

ATC3 - Port 3

DPA 10 - Port2

ATC3 - Port 4

Table 3-7

PA to ATC connection for a 120° Metrocell with 21 channels or more per RF frame for one sector

From

DPA 1 - Port1 (CCH)

DPA 1 - Port2

Through

ATC1 - Port 1

ATC1 - Port 2

DPA 2 - Port1

ATC1 - Port 3

RF Frame 1 DPA 2 - Port2 (LCR)

RF Frame 1

ATC Shelf 1

ATC1 - Port 4

TRU/DPA

Shelf 1

DPA 3 - Port1

ATC1 - Port 5

DPA 3 - Port2

ATC1 - Port 6

DPA 4 - Port1

DPA 4 - Port2

ATC1 - Port 7 RF Frame 1

Antenna

(Main receive

for Sector X)

Duplexer

Position 2

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port2

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4 RF Frame 1

DPA 6 - Port1

RF Frame 1 DPA 6 - Port2

RF Frame 1

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

DPA 9 - Port1

DPA 9 - Port 2

DPA 10 - Port1

RF Frame 1 DPA 10 - Port2

RF Frame 1

ATC Shelf 3

Antenna

TRU/DPA

Shelf 3

Duplexer

Position 3

(Diversity

receive for

Sector X)

DPA 11- Port1

ATC3 - Port 5

DPA 11- Port 2

ATC3 - Port 6

DPA 12 - Port1

DPA 12 - Port2

ATC3 - Port 7

ATC3 - Port 8

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3-16 Cell Site Layouts

Table 3-7

PA to ATC connection for a 120° Metrocell with 21 channels or more per RF frame for one sector

(continued)

From

DPA 1 - Port1 (CCH)

DPA 1 - Port2

Through

ATC1 - Port 1

ATC1 - Port 2

DPA 2 - Port1

ATC1 - Port 3

RF Frame 2 DPA 2 - Port2 (LCR)

RF Frame 2

ATC Shelf 1

ATC1 - Port 4

TRU/DPA

Shelf 1

DPA 3 - Port1

ATC1 - Port 5

DPA 3 - Port2

ATC1 - Port 6

DPA 4 - Port1

DPA 4 - Port2

ATC1 - Port 7 RF Frame 2

Antenna

(Main receive

for Sector Y)

Duplexer

Position 2

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port2

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4 RF Frame 2

DPA 6 - Port1

RF Frame 2 DPA 6 - Port2

RF Frame 2

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

DPA 9 - Port1

DPA 9 - Port 2

DPA 10 - Port1

RF Frame 2 DPA 10 - Port2

RF Frame 2

ATC Shelf 3

Antenna

TRU/DPA

Shelf 3

Duplexer

Position 3

(Diversity

receive for

Sector Y)

DPA 11- Port1

ATC3 - Port 5

DPA 11- Port 2

ATC3 - Port 6

DPA 12 - Port1

DPA 12 - Port2

ATC3 - Port 7

ATC3 - Port 8

DPA 1 - Port1 (CCH)

DPA 1 - Port2

ATC1 - Port 1

ATC1 - Port 2

DPA 2 - Port1

ATC1 - Port 3

RF Frame 3 DPA 2 - Port2 (LCR)

RF Frame 3

ATC Shelf 1

ATC1 - Port 4

TRU/DPA

Shelf 1

DPA 3 - Port1

ATC1 - Port 5 RF Frame 3

Antenna

(Main receive

for Sector Z)

Duplexer

Position 2

DPA 3 - Port2

ATC1 - Port 6

DPA 4 - Port1

DPA 4 - Port2

ATC1 - Port 7

ATC1 - Port 8

ATC2 - Port 1

ATC2 - Port 2

ATC2 - Port 3

RF Frame 3 DPA 5 - Port1

RF Frame 3

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 5 - Port2

DPA 6 - Port1

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Cell Site Layouts 3-17

Table 3-7

PA to ATC connection for a 120° Metrocell with 21 channels or more per RF frame for one sector

(continued)

From

Through

Antenna

RF Frame 3 DPA 6 - Port2

RF Frame 3

ATC2 - Port 4 RF Frame 3

TRU/DPA

Shelf 2

ATC Shelf 2

Duplexer

Position 2

(Main receive

for Sector Z)

DPA 7 - Port1

ATC2 - Port 5

DPA 7 - Port 2

ATC2 - Port 6

DPA 8 - Port1

DPA 8 - Port 2

ATC2 - Port 7

ATC2 - Port 8

DPA 9 - Port1

ATC3 - Port 1

DPA 9 - Port 2

ATC3 - Port 2

DPA 10 - Port1

ATC3 - Port 3

RF Frame 3 DPA 10 - Port2

RF Frame 3

ATC Shelf 3

ATC3 - Port 4 RF Frame 3

Antenna

TRU/DPA

Shelf 3

Duplexer

Position 3

(Diversity

receive for

Sector Z)

DPA 11- Port1

ATC3 - Port 5

DPA 11- Port 2

ATC3 - Port 6

DPA 12 - Port1

DPA 12 - Port2

ATC3 - Port 7

ATC3 - Port 8

Receive cabling

In the reverse path, the receive signal from the main antenna of each sector is

connected to the A-input of the Receive Multicoupler (RMC) through the

receive port of the duplexer of that sector. The diversity antenna connects

directly to the B-input of the RMC. Distribution of the reverse path

frequencies is accomplished by RF splitters within each RF frame.

Table 3-8 lists the connection between the RMCs and the RF splitters in a

120° STSR Metrocell with one RF Frame. Table 3-9 lists the connection

between the RMCs and the RF splitters in a 120° STSR Metrocell using three

RF frames.

Table 3-8

RMC to splitter connections for a 120° STSR Metrocell with one RF Frame

From

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Through

RMC 1A - A1

RMC 2A - A1

Splitter 1

Splitter 2

Sector X

RMC 3A - A1 TRU shelf 1 Splitter 3

RMC 1B - B1

RMC 2B - B1

RMC 3B - B1

Splitter 4

Splitter 5

Splitter 6

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3-18 Cell Site Layouts

Table 3-8

RMC to splitter connections for a 120° STSR Metrocell with one RF Frame

From

Main antenna, Sector X

Through

RMC 1A - A2

RMC 2A - A2

Splitter 1

Splitter 2

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Sector Y

Sector Z

Table 3-9

RMC 3A - A2 TRU shelf 2 Splitter 3

RMC 1B - B2

RMC 2B - B2

RMC 3B - B2

RMC 1A - A3

RMC 2A - A3

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

RMC 3A - A3 TRU shelf 3 Splitter 3

RMC 1B - B3

RMC 2B - B3

RMC 3B - B3

Splitter 4

Splitter 5

Splitter 6

RMC to splitter connections for a 120° STSR Metrocell with three RF Frames

From

Main antenna, Sector X

Through

RMC 1A - A1

RMC 2A - A1

Splitter 1

Splitter 2

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

RMC 3A - A1 RF Frame 1 Splitter 3

TRU shelf 1

RMC 1B - B1

RMC 2B - B1

RMC 3B - B1

RMC 1A - A2

RMC 2A - A2

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector X

RMC 3A - A2 RF Frame 1 Splitter 3

TRU shelf 2

RMC 1B - B2

RMC 2B - B2

RMC 3B - B2

RMC 1A - A3

Splitter 4

Splitter 5

Splitter 6

Splitter 1

RMC 2A - A3 RF Frame 1 Splitter 2

TRU shelf 3

RMC 3A - A3

RMC 1B - B3

RMC 2B - B3

Splitter 3

Splitter 4

Splitter 5

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Cell Site Layouts 3-19

Table 3-9

RMC to splitter connections for a 120° STSR Metrocell with three RF Frames (continued)

From

Through

Sector X

Diversity antenna, Sector Z

RMC 3B - B3 RF Frame 1 Splitter 6

TRU Shelf 3

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Main antenna, Sector X

Main antenna, Sector Y

Main antenna, Sector Z

RMC 1A - A4

RMC 2A - A4

Splitter 1

Splitter 2

RMC 3A - A4 RF Frame 2 Splitter 3

TRU shelf 1

RMC 1B - B4

RMC 2B - B4

RMC 3B - B4

RMC 1A - A5

RMC 2A - A5

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector Y

RMC 3A - A5 RF Frame 2 Splitter 3

TRU shelf 2

RMC 1B - B5

RMC 2B - B5

RMC 3B - B5

RMC 1A - A6

RMC 2A - A6

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

RMC 3A - A6 RF Frame 2 Splitter 3

TRU shelf 3

RMC 1B - B6

RMC 2B - B6

RMC 3B - B6

RMC 1A - A7

RMC 2A - A7

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

RMC 3A - A7 RF Frame 3 Splitter 3

TRU shelf 1

RMC 1B - B7

RMC 2B - B7

RMC 3B - B7

RMC 1A - A8

RMC 2A - A8

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector Z

RMC 3A - A8 RF Frame 3 Splitter 3

TRU shelf 2

RMC 1B - B8

RMC 2B - B8

RMC 3B - B8

Splitter 4

Splitter 5

Splitter 6

RMC 1A - A9 RF Frame 3 Splitter 1

TRU shelf 3

RMC 2A - A9

RMC 3A - A9

Splitter 2

Splitter 3

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3-20 Cell Site Layouts

Table 3-9

RMC to splitter connections for a 120° STSR Metrocell with three RF Frames (continued)

From

Diversity antenna, Sector X

Diversity antenna, Sector Y

Diversity antenna, Sector Z

Through

RMC 1B - B9 RF Frame 3 Splitter 4

TRU shelf 3

Sector Z

RMC 2B - B9

RMC 3B - B9

Splitter 5

Splitter 6

Component requirement

Table 3-10 lists the components required for a 120° STSR Metrocell with one

RF Frame and Table 3-11 lists the components required for a 120° STSR

Metrocell with three RF Frames. Both configurations require three Receive

Multicouplers (RMC).

Table 3-10

Component requirement for a 120° STSR Metrocell with one RF Frame

No. of TRUs No. of TRUs No. of ATCs No. of No. of ICRM

No. of antennas

per Sector

Duplexers

TCM Port

cards

3 to 8

9 to 24

3 TX/RX, 3 RX

Note: An additional TCM port card is required for the DRUM, the ACU

and the CSM2.

Table 3-11

Component requirement for a 120° STSR Metrocell with three RF Frames

No. of TRUs No. of TRUs No. of ATCs No. of

No. of ICRM

TCM Port

cards

No. of antennas

per Sector

Duplexers

3 to 20

9 to 60

3 TX/RX, 3 RX

6 TX/RX

21 to 24

63 to 72

Note: An additional TCM port card is required for the DRUM, the ACU

and the CSM2.

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Cell Site Layouts 3-21

60° STSR cell site connection

The Metrocell in a 60° STSR configuration uses at least three equipment

frames, one CE Frame and two RF frames (see Figure 3-8). Each TRU/DPA

Shelf and its associated ATC on one of the two RF frames support one of the

six sectors. With only two RF frames, the maximum number of Voice

Channels (VCH) supported by each sector is six since two of the eight TRUs

on the TRU shelf have to be assigned as the Control Channel (CCH) and the

Locate Channel Receiver (LCR). A 60° STSR Metrocell with two RF Frames

requires twelve antennas; one TX/RX antenna and one RX only antenna for

each sector (see Figure 3-10). As traffic grows, two additional RF frames can

be added to accommodate more VCHs per sector (see Figure 3-9).

A 60° STSR Metrocell with four RF Frames has 16 channels for one sector

(including the CCH and the LCR) and each sector requires two TRU/DPA

shelves and two ATCs. It also requires twelve antennas; one TX/RX antenna

and one RX only antenna for each sector. The outputs of the two ATCs for

each sector are combined through one phasing transformer and connected to a

duplexer. The output of duplexer is then connected to the main TX/RX

Antenna of that sector. The diversity RX antenna of each sector is connected

directly to the Receive Multicoupler (RMC) of that sector. Figure 3-9 shows

the frame layout and Figure 3-11 shows the block diagram of a 60° STSR

Metrocell with four RF Frames.

Control Channel redundancy

Control Channel (CCH) redundancy is commonly provided with a Locate

Channel Receiver (LCR) backup. With two RF Frames, the CCH of each sector

is assigned to position 1 on the TRU/DPA Shelf of that sector and the LCR is

assigned to position 4 on the same shelf. With four RF Frames, a typical

assignment of the CCH and LCR for each sector is listed below:

Control Channel

Locate Channel Receiver

Sector X RF Frame 1/TRU Shelf 1/Position 1 RF Frame 1/TRU Shelf 1/Position 4

Sector Y RF Frame 2/TRU Shelf 1/Position 1 RF Frame 2/TRU Shelf 1/Position 4

Sector Z RF Frame 2/TRU Shelf 3/Position 1 RF Frame 2/TRU Shelf 3/Position 4

Sector U RF Frame 3/TRU Shelf 1/Position 1 RF Frame 3/TRU Shelf 1/Position 4

Sector V RF Frame 4/TRU Shelf 1/Position 1 RF Frame 4/TRU Shelf 1/Position 4

Sector W RF Frame 3/TRU Shelf 3/Position 1 RF Frame 3/TRU Shelf 3/Position 4

This arrangement will have the CCH and the LCR supplied on a different DC

power feed and a TCM card. No RF coaxial switch is required since the

cavity of the LCR position on the ATC will tune to the CCH frequency when

backup is required.

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3-22 Cell Site Layouts

Figure 3-8

Frame layout of a 60° STSR Metrocell with two RF frames (front view)

CE Frame

RF Frame 1

RF Frame 2

RF RIP

CE RIP

Duplexer Duplexer Duplexer

Position 3 Position 2 Position 1

(Sector Z) (Sector Y) (Sector X)

Duplexer Duplexer Duplexer

Position 3 Position 2 Position 1

(Sector W) (Sector V) (Sector U)

DRUM

ATC 3

(Sector Z)

ATC 3

(Sector W)

ACU

HSMO

DPA DPA

TRU/DPA

Shelf 3

(Sector Z)

TRU/DPA

Shelf 3

(Sector W)

CSM 2

RMC 1 (Sector X)

RMC 2 (Sector Y)

RMC 3 (Sector Z)

RMC 4 (Sector U)

RMC 5 (Sector V)

RMC 6 (Sector W)

DPA DPA

ATC 2

(Sector Y)

ATC 2

(Sector V)

DPA DPA

TRU/DPA

Shelf 2

(Sector Y)

TRU/DPA

Shelf 2

(Sector V)

DPA DPA

ICRM

ATC 1

(Sector X)

(Sector U)

DPA DPA

TRU/DPA

Shelf 1

(Sector X)

TRU/DPA

Shelf 1

(Sector U)

Blank Panel

Base

DPA DPA

Base

Figure 3-9

Typical frame layout of a 60° STSR Metrocell with four RF frames (front view)

RF Frame 4

RF Frame 3

RF Frame 1

RF Frame 2

(Sectors V & W) (Sectors U & W)

CE Frame

(Sectors X & Z) (Sectors Y & Z)

RF RIP

CE RIP

Duplexer Duplexer Duplexer Duplexer Duplexer Duplexer

Position 3 Position 2 Position 1 Position 3 Position 2 Position 1

Duplexer Duplexer Duplexer Duplexer Duplexer Duplexer

Position 3 Position 2 Position 1 Position 3 Position 2 Position 1

(Sector V)

(Sector W) (Sector U)

DRUM

(Sector X)

(Sector Z) (Sector Y)

ATC 3

(Sector W)

DPA DPA

ATC 3

(Sector W)

ATC 3

(Sector Z)

DPA DPA

ATC 3

(Sector Z)

DPA DPA

11 12

ACU

HSMO

DPA DPA

CSM 2

(Sector W)

DPA DPA

(Sector W)

DPA DPA

(Sector Z)

DPA DPA

(Sector Z)

DPA DPA

RMC 1 (Sector X)

RMC 2 (Sector Y)

RMC 3 (Sector Z)

RMC 4 (Sector U)

RMC 5 (Sector V)

RMC 6 (Sector W)

ATC 2

(Sector V)

ATC 2

(Sector U)

ATC 2

(Sector X)

ATC 2

(Sector Y)

DPA DPA

(Sector V)

DPA DPA

(Sector U)

DPA DPA

(Sector X)

DPA DPA

(Sector Y)

DPA DPA

ICRM

ATC 1

(Sector V)

(Sector U)

(Sector X)

(Sector Y)

DPA DPA

(Sector V)

DPA DPA

(Sector U)

DPA DPA

(Sector X)

DPA DPA

(Sector Y)

DPA DPA

Blank Panel

Base

Note: A fifth RF Frame can be added for expanding three of the sectors to

24 channels.

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Cell Site Layouts 3-23

Figure 3-10

Block diagram of a 60° STSR Metrocell with two RF Frames

See Table 3-12 for

PA/ATC connection

See Table 3-14 for

RMC/TRU Shelf connection

RF Frame 1

Antenna

(Sector X

Main

Control Channel

for Sector X

Duplexer

Position 1

receive)

ANT

DPA 1

Antenna

(Sector X

Diversity

receive)

TRU/DPA

Shelf 1

ATC 1

From

RMC 6B-B1

DPA 4

Antenna

(Sector Y

Main

Control Channel

for Sector Y

DPA 5

Duplexer

Position 2

receive)

ANT

Antenna

(Sector Y

Diversity

receive)

TRU/DPA

Shelf 2

ATC 2

DPA 8

Antenna

(Sector Z

Main

Control Channel

for Sector Z

DPA 9

Duplexer

Position 3

receive)

ANT

Antenna

(Sector Z

Diversity

receive)

TRU/DPA

Shelf 3

ATC 3

DPA 12

CE Frame

ICRM

HSMO

- continued -

DMS-MTX DualMode Metrocell Cell Site Description

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3-24 Cell Site Layouts

Figure 3-10

Block diagram of a 60° STSR Metrocell with two RF Frames (continued)

See Table 3-12 for

PA/ATC connection

See Table 3-14 for

RMC/TRU Shelf connection

RF Frame 2

Antenna

(Sector U

Main

Control Channel

for Sector U

Duplexer

Position 1

receive)

ANT

DPA 1

Antenna

(Sector U

Diversity

receive)

TRU/DPA

Shelf 1

ATC 1

From

RMC 3B-B2

DPA 4

Antenna

(Sector V

Main

Control Channel

for Sector V

DPA 5

Duplexer

Position 2

receive)

ANT

Antenna

(Sector V

Diversity

receive)

TRU/DPA

Shelf 2

ATC 2

DPA 8

DPA 9

Antenna

(Sector W

Main

Control Channel

for Sector W

Duplexer

Position 3

receive)

ANT

Antenna

(Sector W

Diversity

receive)

TRU/DPA

Shelf 3

ATC 3

DPA 12

CE Frame

ICRM

HSMO

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Cell Site Layouts 3-25

Figure 3-11

Block diagram of a 60° STSR Metrocell with four RF Frames

See Table 3-15 for

RF Frame 1

See Tables 3-13 for

RMC/TRU Shelf connection

Note

Antenna

(Sector X

Main

PA/ATC connection

Duplexer

Position 2

Control Channel

for Sector X

ANT

receive)

DPA 1

Antenna

(Sector X

Diversity

receive)

TRU/DPA

Shelf 1

ATC 1

Antenna

(Sector Y

Main

Duplexer

Position 2

ANT

receive)

DPA 4

DPA 5

RF Frame 2

Antenna

(Sector Y

Diversity

receive)

Sector X

From

RMC 3A-A4

TRU/DPA

Shelf 2

ATC 2

Antenna

(Sector V

Main

DPA 8

DPA 9

Duplexer

ANT

receive)

Position 2

Antenna

(Sector V

Diversity

receive)

RF Frame 4

Sector Z

Antenna

(Sector W

Main

TRU/DPA

Shelf 3

ATC 3

Duplexer

Position 3

To Phasing

ANT

receive)

Transformer

on ATC3,

RF Frame 2

RF Frame 3

Antenna

(Sector W

Diversity

receive)

DPA 12

CE Frame

ICRM

HSMO

Note:

For diagram clarity, only RF Frames 1 and 2 are shown. RF Frames 3 and 4 are connected

and operated identically to that of RF Frames 1 and 2 respectively for Sectors U, V and W.

Refer to Tables 3-13 and 3-15 for the complete cabling information.

- continued -

DMS-MTX DualMode Metrocell Cell Site Description

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3-26 Cell Site Layouts

Figure 3-11

Block diagram of a 60° STSR Metrocell with four RF Frames (continued)

See Table 3-15 for

RF Frame 2

See Tables 3-13 for

RMC/TRU Shelf connection

Note

Antenna

(Sector X

Main

PA/ATC connection

Duplexer

Position 2

Control Channel

for Sector Y

ANT

receive)

DPA 1

RF Frame 1

Antenna

(Sector X

Diversity

receive)

TRU/DPA

Shelf 1

ATC 1

Antenna

(Sector Y

Main

Duplexer

Position 2

ANT

receive)

DPA 4

DPA 5

Antenna

(Sector Y

Diversity

receive)

Sector Y

From

RMC 3A-A3

TRU/DPA

Shelf 2

ATC 2

Antenna

(Sector V

Main

DPA 8

DPA 9

Duplexer

ANT

receive)

Position 2

Antenna

(Sector V

Diversity

receive)

RF Frame 4

Control Channel

for Sector Z

From ATC 3 on

RF Frame 1

Sector Z

Antenna

(Sector W

Main

TRU/DPA

Shelf 3

ATC 3

Duplexer

Position 3

To Sector Z

Main Antenna

through

Duplexer 3 on

RF Frame 2

ANT

receive)

RF Frame 3

Antenna

(Sector W

Diversity

receive)

DPA 12

CE Frame

ICRM

HSMO

Note:

For diagram clarity, only RF Frames 1 and 2 are shown. RF Frames 3 and 4 are connected

and operated identically to that of RF Frames 1 and 2 respectively for Sectors U, V and W.

Refer to Tables 3-13 and 3-15 for the complete cabling information.

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Cell Site Layouts 3-27

Transmit cabling

In the transmit path, the output of each Transmit Receive Unit (TRU) is

connected to the input of each corresponding power amplifier (PA) on the

Dual Power Amplifier (DPA) module.

For a 60° STSR cell site with two RF Frames, each TRU/DPA Shelf and its

associated ATC and duplexer serve for one of the six sectors as listed below:

•

Sector X RF Frame 1—TRU/DPA Shelf 1, ATC 1 and Duplexer 1

Sector Y RF Frame 1—TRU/DPA Shelf 2, ATC 2 and Duplexer 2

Sector Z

RF Frame 1—TRU/DPA Shelf 3, ATC 3 and Duplexer 3

Sector U RF Frame 2—TRU/DPA Shelf 1, ATC 1 and Duplexer 1

Sector V RF Frame 2—TRU/DPA Shelf 2, ATC 2 and Duplexer 2

Sector W RF Frame 2—TRU/DPA Shelf 3, ATC 3 and Duplexer 3

The output of each power amplifier (PA) is input to an 8-channel AutoTune

Combiner (ATC). The output of each 8-channel ATC is connected to the

Transmit (TX) port of each corresponding duplexer. Table 3-12 lists the

connection between the PAs and the ATC for a 60° STSR cell site using two

RF Frame for six sectors.

For a 60°STSR cell site with four RF Frames, the assignment of the equipment

for each sector is as listed below:

•

Sector X RF Frame 1 —TRU/DPA Shelf 1, ATC 1

TRU/DPA Shelf 2, ATC 2 and Duplexer 2

Sector Y RF Frame 2 —TRU/DPA Shelf 1, ATC 1

TRU/DPA Shelf 2, ATC 2 and Duplexer 2

Sector Z

RF Frame 1 —TRU/DPA Shelf 3, ATC 3

RF Frame 2 —TRU/DPA Shelf 3, ATC 3 and Duplexer 3

Sector U RF Frame 3 —TRU/DPA Shelf 1, ATC 1

TRU/DPA Shelf 2, ATC 2 and Duplexer 2

Sector V RF Frame 4 —TRU/DPA Shelf 1, ATC 1

TRU/DPA Shelf 2, ATC 2 and Duplexer 2

Sector W RF Frame 3 —TRU/DPA Shelf 3, ATC 3 and Duplexer 3

RF Frame 4 —TRU/DPA Shelf 3, ATC 3

By adding one more RF Frame to this configuration, three of the six sectors

can be expanded to provide up to 24 channels (including the CCH and LCR).

With this additional RF Frame, the equipment and cabling may need to be

reassigned and rearranged. Table 3-12 lists the connection between the PAs

and the ATC for a 60° STSR configuration with two RF Frames and Table 3-

13 lists the connection between the PAs and the ATC for a 60° STSR

configuration with four RF Frames.

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3-28 Cell Site Layouts

Table 3-12

PA to ATC connection for a 60°STSR Metrocell using two RF Frames

From

DPA 1 - Port1 (CCH)

DPA 1 - Port2

Through

ATC1 - Port 1

ATC1 - Port 2

DPA 2 - Port1

ATC1 - Port 3

RF Frame 1 DPA 2 - Port2 (LCH)

RF Frame 1

ATC Shelf 1

ATC1 - Port 4 RF Frame 1

Antenna

(Main receive

for Sector X)

TRU/DPA

Shelf 1

Duplexer

Position 1

DPA 3 - Port1

ATC1 - Port 5

DPA 3 - Port2

ATC1 - Port 6

DPA 4 - Port1

DPA 4 - Port2

ATC1 - Port 7

ATC1 - Port 8

DPA 5 - Port1 (CCH)

DPA 5 - Port2

ATC2 - Port 1

ATC2 - Port 2

DPA 6 - Port1

ATC2 - Port 3

RF Frame 1 DPA 6 - Port2 (LCH)

RF Frame 1

ATC Shelf 2

ATC2 - Port 4 RF Frame 1

Antenna

(Main receive

for Sector Y)

TRU/DPA

Shelf 2

Duplexer

Position 2

DPA 7 - Port1

ATC2 - Port 5

DPA 7 - Port 2

ATC2 - Port 6

DPA 8 - Port1

ATC2 - Port 7

DPA 8 - Port 2

DPA 9 - Port1 (CCH)

DPA 9 - Port 2

DPA 10 - Port1

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

RF Frame 1 DPA 10 - Port2 (LCH) RF Frame 1

ATC3 - Port 4 RF Frame 1

Antenna

TRU/DPA

Shelf 3

ATC Shelf 3

Duplexer

Position 3

(Main receive

for Sector Z)

DPA 11 - Port1

DPA 11 - Port2

DPA 12 - Port1

DPA 12 - Port2

DPA 13 - Port1 (CCH)

DPA 13 - Port2

DPA 14 - Port1

ATC3 - Port 5

ATC3 - Port 6

ATC3 - Port 7

ATC3 - Port 8

ATC4 - Port 1

ATC4 - Port 2

ATC4 - Port 3

RF Frame 2 DPA 14 - Port2 (LCH) RF Frame 2

ATC4 - Port 4 RF Frame 2

Antenna

TRU/DPA

Shelf 1

ATC Shelf 1

Duplexer

Position 1

(Main receive

for Sector U)

DPA 15 - Port1

DPA 15 - Port2

DPA 16 - Port1

DPA 16 - Port2

ATC4 - Port 5

ATC4 - Port 6

ATC4 - Port 7

ATC4 - Port 8

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Cell Site Layouts 3-29

Table 3-12

PA to ATC connection for a 60°STSR Metrocell using two RF Frames (continued)

From

Through

ATC5 - Port 1

DPA 17 - Port1 (CCH)

DPA 17 - Port2

ATC5 - Port 2

DPA 18 - Port1

ATC5 - Port 3

RF Frame 2 DPA 18 - Port2 (LCH) RF Frame 2

ATC5 - Port 4 RF Frame 2

Antenna

TRU/DPA

Shelf 2

ATC Shelf 2

Duplexer

Position 2

(Main receive

for Sector V)

DPA 19 - Port1

DPA 19 - Port 2

DPA 20 - Port1

DPA 20 - Port 2

DPA 21 - Port1 (CCH)

DPA 21 - Port 2

DPA 22 - Port1

ATC5 - Port 5

ATC5 - Port 6

ATC5 - Port 7

ATC5 - Port 8

ATC6 - Port 1

ATC6 - Port 2

ATC6 - Port 3

RF Frame 2 DPA 22 - Port2 (LCH) RF Frame 2

ATC6 - Port 4 RF Frame 2

Antenna

TRU/DPA

Shelf 3

ATC Shelf 3

Duplexer

Position 3

(Main receive

for Sector W)

DPA 23 - Port1

DPA 23 - Port2

DPA 24 - Port1

DPA 24 - Port2

ATC6 - Port 5

ATC6 - Port 6

ATC6 - Port 7

ATC6 - Port 8

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3-30 Cell Site Layouts

Table 3-13

PA to ATC connection for a 60°STSR Metrocell using four RF Frames

From

DPA 1 - Port1 (CCH)

DPA 1 - Port2

Through

ATC1 - Port 1

ATC1 - Port 2

DPA 2 - Port1

ATC1 - Port 3

RF Frame 1 DPA 2 - Port2 (LCH)

RF Frame 1

ATC Shelf 1

ATC1 - Port 4

TRU/DPA

Shelf 1

DPA 3 - Port1

ATC1 - Port 5

DPA 3 - Port2

ATC1 - Port 6

DPA 4 - Port1

DPA 4 - Port2

ATC1 - Port 7 RF Frame 1

Antenna

(Main receive

for Sector X)

Duplexer

Position 2

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port2

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC1 - Port 1

ATC1 - Port 2

ATC1 - Port 3

ATC1 - Port 4

ATC1 - Port 5

ATC1 - Port 6

ATC1 - Port 7 RF Frame 2

DPA 6 - Port1

RF Frame 1 DPA 6 - Port2

RF Frame 1

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port 2

DPA 1 - Port1 (CCH)

DPA 1 - Port 2

DPA 2 - Port1

RF Frame 2 DPA 2 - Port2 (LCR)

RF Frame 2

ATC Shelf 1

TRU/DPA

Shelf 1

DPA 3 - Port1

DPA 3 - Port 2

DPA 4 - Port1

DPA 4 - Port2

Antenna

(Main receive

for Sector Y)

Duplexer

Position 2

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port 2

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

DPA 6 - Port1

RF Frame 2 DPA 6 - Port2

RF Frame 2

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port2

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Cell Site Layouts 3-31

Table 3-13

PA to ATC connection for a 60°STSR Metrocell using four RF Frames (continued)

From

DPA 9 - Port1

Through

ATC3 - Port 1

DPA 9 - Port2

ATC3 - Port 2

DPA 10 - Port1

ATC3 - Port 3

RF Frame 1 DPA 10 - Port2

RF Frame 1

ATC Shelf 3

ATC3 - Port 4

TRU/DPA

Shelf 3

DPA 11 - Port1

ATC3 - Port 5

DPA 11 - Port2

ATC3 - Port 6

DPA 12 - Port1

DPA 12- Port2

ATC3 - Port 7 RF Frame 2

Antenna

(Main receive

for Sector Z)

Duplexer

Position 3

ATC3 - Port 8

DPA 9 - Port1 (CCH)

ATC3 - Port 1

DPA 9 - Port2

DPA 10 - Port1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4

ATC3 - Port 5

ATC3 - Port 6

ATC3 - Port 7

ATC3 - Port 8

ATC1 - Port 1

ATC1 - Port 2

ATC1 - Port 3

ATC1 - Port 4

ATC1 - Port 5

ATC1 - Port 6

ATC1 - Port 7 RF Frame 3

RF Frame 2 DPA 10 - Port2 (LCH) RF Frame 2

TRU/DPA

Shelf 3

ATC Shelf 3

DPA 11 - Port1

DPA 11 - Port 2

DPA 12 - Port1

DPA 12 - Port 2

DPA 1 - Port1 (CCH)

DPA 1 - Port 2

DPA 2 - Port1

RF Frame 3 DPA 2 - Port2 (LCR)

RF Frame 3

ATC Shelf 1

TRU/DPA

Shelf 1

DPA 3 - Port1

DPA 3 - Port 2

DPA 4 - Port1

DPA 4 - Port2

Antenna

(Main receive

for Sector U)

Duplexer

Position 2

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port 2

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

DPA 6 - Port1

RF Frame 3 DPA 6 - Port2

RF Frame 3

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port2

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3-32 Cell Site Layouts

Table 3-13

PA to ATC connection for a 60°STSR Metrocell using four RF Frames (continued)

From

DPA 1 - Port1 (CCH)

DPA 1 - Port 2

Through

ATC1 - Port 1

ATC1 - Port 2

DPA 2 - Port1

ATC1 - Port 3

RF Frame 4 DPA 2 - Port2 (LCR)

RF Frame 4

ATC Shelf 1

ATC1 - Port 4

TRU/DPA

Shelf 1

DPA 3 - Port1

ATC1 - Port 5

DPA 3 - Port 2

ATC1 - Port 6

DPA 4 - Port1

DPA 4 - Port2

ATC1 - Port 7 RF Frame 4

Antenna

(Main receive

for Sector V)

Duplexer

Position 2

ATC1 - Port 8

DPA 5 - Port1

ATC2 - Port 1

DPA 5 - Port 2

ATC2 - Port 2

ATC2 - Port 3

ATC2 - Port 4

ATC2 - Port 5

ATC2 - Port 6

ATC2 - Port 7

ATC2 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4

ATC3 - Port 5

ATC3 - Port 6

ATC3 - Port 7 RF Frame 3

DPA 6 - Port1

RF Frame 4 DPA 6 - Port2

RF Frame 4

ATC Shelf 2

TRU/DPA

Shelf 2

DPA 7 - Port1

DPA 7 - Port 2

DPA 8 - Port1

DPA 8 - Port2

DPA 9 - Port1 (CCH)

DPA 9 - Port2

DPA 10 - Port1

RF Frame 3 DPA 10 - Port2 (LCH) RF Frame 3

TRU/DPA

Shelf 3

ATC Shelf 3

DPA 11 - Port1

DPA 11 - Port2

DPA 12 - Port1

DPA 12- Port2

DPA 9 - Port1

DPA 9 - Port2

DPA 10 - Port1

Antenna

(Main receive

for Sector W)

Duplexer

Position 3

ATC3 - Port 8

ATC3 - Port 1

ATC3 - Port 2

ATC3 - Port 3

ATC3 - Port 4

ATC3 - Port 5

ATC3 - Port 6

ATC3 - Port 7

ATC3 - Port 8

RF Frame 4 DPA 10 - Port2

RF Frame 4

ATC Shelf 3

TRU/DPA

Shelf 3

DPA 11 - Port1

DPA 11 - Port 2

DPA 12 - Port1

DPA 12 - Port 2

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Cell Site Layouts 3-33

Receive cabling

In the reverse path, the receive signal from the main antenna of each sector is

connected to the A-input of the Receive Multicoupler (RMC) through the

receive port of the duplexer of that sector. The diversity antenna connects

directly to the B-input of the RMC. Distribution of the reverse path

frequencies is accomplished by RF splitters within each RF frame.

Table 3-14 lists the connection between the RMCs and the RF splitters in a

60° STSR Metrocell with two RF Frames. Table 3-15 lists the connection

between the RMCs and the RF splitters in a 60° STSR Metrocell using four

RF frames.

Table 3-14

RMC to splitter connections for a 60° STSR Metrocell with two RF Frames

From

Main antenna, Sector X — primary sector

Main antenna, Sector Y — right adjacent sector

Sector X Main antenna, Sector U — rear sector

Diversity antenna, Sector X — primary sector

Diversity antenna, Sector U — rear sector

Through

RMC 1A - A1

RMC 2A - A1

Splitter 1

Splitter 2

RMC 4A - A1 RF Frame 1 Splitter 3

TRU shelf 1

RMC 1B - B1

RMC 4B - B1

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector W — left adjacent sector RMC 6B - B1

Main antenna, Sector Y — primary sector

Main antenna, Sector Z — right adjacent sector

Sector Y Main antenna, Sector V — rear sector

Diversity antenna, Sector Y — primary sector

Diversity antenna, Sector V — rear sector

RMC 2A - A2

RMC 3A - A1

RMC 5A - A1 RF Frame 1 Splitter 3

TRU shelf 2

RMC 2B - B1

RMC 5B - B1

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector X — left adjacent sector RMC 1B - B2

Main antenna, Sector Z — primary sector

Main antenna, Sector U — right adjacent sector

Sector Z Main antenna, Sector W — rear sector

Diversity antenna, Sector Z — primary sector

Diversity antenna, Sector W — rear sector

RMC 3A - A2

RMC 4A - A2

RMC 6A - A1 RFFrame1 Splitter 3

TRU shelf 3

RMC 3B - B1

RMC 6B - B2

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector Y — left adjacent sector RMC 2B - B2

Main antenna, Sector U — primary sector

Main antenna, Sector V — right adjacent sector

Sector U Main antenna, Sector X — rear sector

Diversity antenna, Sector U — primary sector

Diversity antenna, Sector X — rear sector

RMC 4A - A3

RMC 5A - A2

RMC 1A - A2 RFFrame2 Splitter 3

TRU shelf 1

RMC 4B - B2

RMC 1B - B3

Splitter 4

Splitter 5

Splitter 6

Diversity antenna, Sector Z — left adjacent sector RMC 3B - B2

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3-34 Cell Site Layouts

Table 3-14

RMC to splitter connections for a 60° STSR Metrocell with two RF Frames (continued)

From

Main antenna, Sector V — primary sector

Main antenna, Sector W — right adjacent sector

Sector V Main antenna, Sector Y — rear sector

Diversity antenna, Sector V — primary sector

Diversity antenna, Sector Y — rear sector

Through

RMC 5A - A3

RMC 6A - A2

Splitter 1

Splitter 2

RMC 2A - A3 RFFrame2 Splitter 3

TRU shelf 2

RMC 5B - B2

RMC 2B - B3

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector U — left adjacent sector RMC 4B - B3

Main antenna, Sector W — primary sector

Main antenna, Sector X — right adjacent sector

Sector W Main antenna, Sector Z — rear sector

Diversity antenna, Sector W — primary sector

Diversity antenna, Sector Z — rear sector

RMC 6A - A3

RMC 1A - A3

RMC 3A - A3 RFFrame2 Splitter 3

TRU shelf 3

RMC 6B - B3

RMC 3B - B3

Splitter 4

Splitter 5

Splitter 6

Diversity antenna, Sector V — left adjacent sector RMC 5B - B3

Table 3-15

RMC to splitter connections for a 60° STSR Metrocell with four RF Frames

From

Through

Main antenna, Sector X — primary sector

Main antenna, Sector Y — right adjacent sector

Main antenna, Sector U — rear sector

Diversity antenna, Sector X — primary sector

Diversity antenna, Sector U — rear sector

RMC 1A - A1

RMC 2A - A1

Splitter 1

Splitter 2

RMC 4A - A1 RFFrame1 Splitter 3

TRU shelf 1

RMC 1B - B1

RMC 4B - B1

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector X Diversity antenna, Sector W — left adjacent sector RMC 6B - B1

Main antenna, Sector X — primary sector

Main antenna, Sector Y — right adjacent sector

Main antenna, Sector U — rear sector

RMC 1A - A2

RMC 2A - A2

RMC 4A - A2 RFFrame1 Splitter 3

TRU shelf 2

Diversity antenna, Sector X — primary sector

Diversity antenna, Sector U — rear sector

RMC 1B - B2

RMC 4B - B2

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector W — left adjacent sector RMC 6B - B2

Main antenna, Sector Y — primary sector

Main antenna, Sector Z — right adjacent sector

Sector Y Main antenna, Sector V — rear sector

Diversity antenna, Sector Y — primary sector

Diversity antenna, Sector V — rear sector

RMC 2A - A3

RMC 3A - A1

RMC 5A - A1 RFFrame2 Splitter 3

TRU shelf 1

RMC 2B - B1

RMC 5B - B1

Splitter 4

Splitter 5

Splitter 6

Diversity antenna, Sector X — left adjacent sector RMC 1B - B3

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Cell Site Layouts 3-35

Table 3-15

RMC to splitter connections for a 60° STSR Metrocell with four RF Frames (continued)

From

Main antenna, Sector Y — primary sector

Main antenna, Sector Z — right adjacent sector

Sector Y Main antenna, Sector V — rear sector

Diversity antenna, Sector Y — primary sector

Diversity antenna, Sector V — rear sector

Through

RMC 2A - A4

RMC 3A - A2

Splitter 1

Splitter 2

RMC 5A - A2 RFFrame2 Splitter 3

TRU shelf 2

RMC 2B - B2

RMC 5B - B2

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector X — left adjacent sector RMC 1B - B4

Main antenna, Sector Z — primary sector

Main antenna, Sector U — right adjacent sector

Main antenna, Sector W — rear sector

RMC 3A - A3

RMC 4A - A3

RMC 6A - A1 RFFrame2 Splitter 3

TRU shelf 3

Diversity antenna, Sector Z — primary sector

Diversity antenna, Sector W — rear sector

RMC 3B - B1

RMC 6B - B3

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector Z Diversity antenna, Sector Y — left adjacent sector RMC 2B - B3

Main antenna, Sector Z — primary sector

Main antenna, Sector U — right adjacent sector

Main antenna, Sector W — rear sector

RMC 3A - A4

RMC 4A - A4

RMC 6A - A2 RFFrame1 Splitter 3

TRU shelf 3

Diversity antenna, Sector Z — primary sector

Diversity antenna, Sector W — rear sector

RMC 3B - B2

RMC 6B - B4

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector Y — left adjacent sector RMC 2B - B4

Main antenna, Sector U — primary sector

Main antenna, Sector V — right adjacent sector

Main antenna, Sector X — rear sector

RMC 4A - A5

RMC 5A - A3

RMC 1A - A3 RFFrame3 Splitter 3

TRU shelf 1

Diversity antenna, Sector U — primary sector

Diversity antenna, Sector X — rear sector

RMC 4B - B3

RMC 1B - B5

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector U Diversity antenna, Sector Z — left adjacent sector RMC 3B - B3

Main antenna, Sector U — primary sector

Main antenna, Sector V — right adjacent sector

Main antenna, Sector X — rear sector

RMC 4A - A6

RMC 5A - A4

RMC 1A - A4 RFFrame3 Splitter 3

TRU shelf 2

Diversity antenna, Sector U — primary sector

Diversity antenna, Sector X — rear sector

RMC 4B - B4

RMC 1B - B6

Splitter 4

Splitter 5

Splitter 6

Diversity antenna, Sector Z — left adjacent sector RMC 3B - B4

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3-36 Cell Site Layouts

Table 3-15

RMC to splitter connections for a 60° STSR Metrocell with four RF Frames (continued)

From

Through

Main antenna, Sector V — primary sector

Main antenna, Sector W — right adjacent sector

Main antenna, Sector Y — rear sector

Diversity antenna, Sector V — primary sector

Diversity antenna, Sector Y — rear sector

RMC 5A - A5

RMC 6A - A3

Splitter 1

Splitter 2

RMC 2A - A5 RFFrame4 Splitter 3

TRU shelf 1

RMC 5B - B3

RMC 2B - B5

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector V Diversity antenna, Sector U — left adjacent sector RMC 4B - B5

Main antenna, Sector V — primary sector

Main antenna, Sector W — right adjacent sector

Main antenna, Sector Y — rear sector

RMC 5A - A6

RMC 6A - A4

RMC 2A - A6 RFFrame4 Splitter 3

TRU shelf 2

Diversity antenna, Sector V — primary sector

Diversity antenna, Sector Y — rear sector

RMC 5B - B4

RMC 2B - B6

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Diversity antenna, Sector U — left adjacent sector RMC 4B - B6

Main antenna, Sector W — primary sector

Main antenna, Sector X — right adjacent sector

Main antenna, Sector Z — rear sector

RMC 6A - A5

RMC 1A - A5

RMC 3A - A5 RFFrame3 Splitter 3

TRU shelf 3

Diversity antenna, Sector W — primary sector

Diversity antenna, Sector Z — rear sector

RMC 6B - B5

RMC 3B - B5

Splitter 4

Splitter 5

Splitter 6

Splitter 1

Splitter 2

Sector W Diversity antenna, Sector V — left adjacent sector RMC 5B - B5

Main antenna, Sector W — primary sector

Main antenna, Sector X — right adjacent sector

Main antenna, Sector Z — rear sector

RMC 6A - A6

RMC 1A - A6

RMC 3A - A6 RFFrame4 Splitter 3

TRU shelf 3

Diversity antenna, Sector W — primary sector

Diversity antenna, Sector Z — rear sector

RMC 6B - B6

RMC 3B - B6

Splitter 4

Splitter 5

Splitter 6

Diversity antenna, Sector V — left adjacent sector RMC 5B - B6

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Cell Site Layouts 3-37

Component requirement

Table 3-16 lists the components required for a 60° STSR Metrocell with two

RF Frame and Table 3-17 lists the components required for a 60° STSR

Metrocell with four RF Frames. Both configurations require six Receive

Multicouplers (RMC).

Table 3-16

Component requirement for a 60° STSR Metrocell with two RF Frames

No. of TRUs No. of TRUs No. of ATCs No. of

No. of ICRM

No. of antennas

per Sector

Duplexers

TCM Port

cards

3 to 8

18 to 48

6 TX/RX, 6 RX

Note: An additional TCM port card is required for the DRUM, the ACU

and the CSM2.

Table 3-17

Component requirement for a 60° STSR Metrocell with four RF Frames

No. of TRUs No. of TRUs No. of ATCs No. of No. of ICRM

No. of antennas

per Sector

Duplexers

TCM Port

cards

3 to 16

18 to 96

6 TX/RX, 6 RX

Note: An additional TCM port card is required for the DRUM, the ACU

and the CSM2.

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3-38 Cell Site Layouts

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4-1

Cell Site Components

This chapter provides information on the description and Product

Engineering Codes (PEC) of the major components used in a DualMode

Metrocell.

Table 4-1

Major components of a DualMode Metrocell

Note: FRU = Field Replaceable Unit

Description

PEC

Metro RF Frame

NTFB10AA

NTFB0901

NTFB0902

NTFB11AA

NTFB16AA

NTFB17AA

NTFB18AA

NTFB1801

NTFB1802

NTFB19AA

NTFB19AB

NTFB20AA

NTFB21AA

NTFB21AB

NTFB21AC

NTFB23AA

NTFB24AA

NTFB34AA

NTFB34AB

NTFB35AA

"A" DC Power Cable Harness

"B" DC Power Cable Harness

Metro RF Rack Interface Panel (RIP) Shelf

FRU

Duplexer

AutoTune Combiner (ATC)

ATC Phasing Transformer

ATC Transformer Phasing Cable, A-Band

ATC Transformer Phasing Cable, B-Band

ATC Phasing Cable, A-Band

ATC Phasing Cable, B-Band

ATC Shorting Stub

ATC-Duplexer Cable 1

ATC-Duplexer Cable 2

ATC-Duplexer Cable 3

TRU/DPA Shelf

TRU/DPA Shelf Fan Module Assembly

PA-ATC Coax Cable Assembly 1-4

PA-ATC Coax Cable Assembly 5-8

TRU/PA- ATC Alarm Cable

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4-2 Cell Site Components

Table 4-1

Major components of a DualMode Metrocell

Note: FRU = Field Replaceable Unit

Description

PEC

Cable DATA 25-Pair TRU/DPA Shelf 1

NTFA1004

NTFA1008

NTFA1009

NTAX98AA

NTFB38AA

NTFB41AA

NT3P64CA

FRU

Cable DATA 25-Pair TRU/DPA Shelf 2

Cable DATA 25-Pair TRU/DPA Shelf 3

Transmit Receive Unit (TRU)

Dual Power Amplifier (DPA)

CE Frame Alarm Cable

Universal CE Frame

Universal CE RIP Shelf

DualMode Radio Unit Monitor (DRUM)

—sniffer

—whip antenna

NTAX40DA

NTAX40CA

FRU

Alarm Control Unit (ACU)

Output Contact card

NT3P20GA

NT3P20EA

NT3P20FB

NT3P20JB

NT3P70AB

NT3P75AB

NT3P78AB

NT3P20HP

FRU

Enhanced ACU Input card

High Stability Master Oscillator (HSMO)

Cell Site Monitor 2 (CSM2)

M6200 Handset

Handset coil cord

Receive Multicoupler (RMC)

Integrated Cellular Remote Module (ICRM) NTAX8607

Port (RMDP) card

Controller (RMCP) card

Time Switch (RMTS) card

(RMTC) card

NTAX47BA

NTAX89AA

NTAX88AA

NTAX88CA

NT6X50AB

NT6X27BB

NT2X70CA

NTAX90AB

NTAX92AA

NTAX91AA

DS1 Interface card

E1 Interface card

Power convertor

ICRM FSP Shelf

Alarm (RMAC) card

TCM-RS232 Conversion (RMTP) card

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Cell Site Components 4-3

Customer Service Operations

Most of these components can be ordered from Nortel. Contact the following

Nortel Customer Service Operations (CSO) when replacement is required:

For United States customers:

Northern Telecom Inc.

Attn. Customer Service Operations

400 N. Industrial

Richardson, Texas 75081

For Bell Canada customers:

Northern Telecom Canada Ltd.

Customer Service Operations

c/o Wesbell Transport

1630 Trinity Rd., Unit #3, Door #4

Mississauga, Ontario L5T 1L6

Attn.: Replacement and Repair Operations

Dept.: S898

For Mexico customers:

Northern Telecom de Mexico

Toltecas #113

Col. San Pedro De Los Pinos

Casi Esq Calle 4

Mexico

For Asia Pacific customers:

Northern Telecom Asia Pacific Ltd.

Attn.: Technical Assistance Service

Warwick House 17/F

28 Tong Chong Street

Quarry Bay, Hong Kong

For Non-Bell Canada/CALA/International customers:

Northern Telecom Canada Ltd.

Customer Service Operations

c/o Wesbell Transport

1630 Trinity Rd., Unit #3, Door #4

Mississauga, Ontario L5T 1L6

Attn.: Replacement and Repair Operations

Dept.: S898

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4-4 Cell Site Components

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5-1

Power and Grounding Requirements

Cell sites are built to house communication equipment of the cellular

telephone network. Cellular equipment can be located in stand-alone sites or

in larger buildings in urban areas. Cellular equipment is traditionally powered

from a +24 Vdc power plant. Some switching equipment can also be located

in a cell site. It is connected with other equipment through CO cables. RF

signals are transmitted using coaxial cables through areal antennas. Since cell

sites are susceptible to lightning strikes, extra precautions have to take place

to ensure the operation.

Safety requirements

Safety standards for installation and maintenance of electrical equipment are

the object of the national codes; Canadian Electrical Code (CEC) in Canada

and the National Electrical Code (NEC) in the USA. Although these codes do

not govern installations of communication equipment under the exclusive

control of communication utilities, it is good design and installation practice

for the new equipment or system to comply with the intent of the appropriate

Code. For systems installed at the customer premises outside of the above

communication utilities, compliance with the Code is mandatory.

One of the basic safety rules of the national codes (CEC and NEC) in North

America, for example, requires that there shall be no objectionable current on

the Framework Ground conductor (grounding conductor). In practice, this

usually means no measurable current.

In view of the above, communication equipment shall use a three wire

distribution system as required by the codes (system with separated

grounding such as Floor Ground and grounded conductor such as Battery

Return or the neutral) rather than two wire power distribution system (system

with joined grounding and grounded conductor).

Note: Countries outside North America may have different safety

standards codes. Follow the safety standards for installation and

maintenance of electrical equipment in your country accordingly.

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5-2 Power and Grounding Requirements

Power and grounding requirements

Typical cell site radio equipment is powered by a +24 Vdc power system.

However, the primary power for a DualMode Metrocell is +27 Vdc nominal.

The reason that +27 Volts is specified as the nominal voltage rather than +24

Volts is to highlight that the system requires the full float voltage level to

enable it to deliver its fully rated available transmit RF output power level.

When AC power is lost and the voltage level to the system is reduced to the

nominal battery (that is, +24 Vdc), the power amplifiers will automatically

step down their transmit RF output power. See the Dual Power Amplifier

(DPA) section in NTP 411-2021-113Metrocell Radio Frequency (RF) Frame

Description for details.

The power plant normally consists of a negative grounded 12-cell Valve

Regulated Lead-Acid (VRLA) battery plant andAC powered battery charging

units commonly referred to as the rectifiers. Under normal operating

conditions, that is, when AC power is available, the batteries are maintained

within their specified float voltage range via the rectifiers which must supply

current to power the system and keep the batteries charged. When an AC

outage occurs, the battery plant provides back-up power to the system.

However, at this time, the system will experience a step drop in voltage due to

a battery plant transition from the float state to the fully charged state. During

the battery discharge period, the voltage supplied to the system will gradually

drop from its fully charged voltage.

Under normal operating conditions an equalizing charge is not required. An

equalizing charge is a special charge given to a battery when non-uniformity

in voltage has developed between cells. It is given to restore all units to a

fully charged condition by using a charging voltage higher than the normal

float voltage and for a specified number of hours as determined by the specific

voltage used. An equalize charge is also often applied when a recharge of the

batteries is required in a minimum time following an emergency discharge.

A typical operating voltage range at the Power Distribution Plant of a

Metrocell should not exceed the range between +22.8 Vdc to +29 Vdc. +22.8

Vdc assumes 1 V drop from the batteries to the Rack Interface Panel (RIP)

and 0.8 V from the RIP to the load. The operating voltage range of a specific

system could vary.

The power plant supplies two (designated as ‘A’ and ‘B’) power feeds to each

Metrocell frame. Table 5-1 lists the performance requirements related to

primary DC power in a Metrocell.

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Power and Grounding Requirements 5-3

Table 5-1

Metrocell DC Power performance requirements

Description

Requirements

Maximum

Nominal

Minimum

Module or unit level operating voltage range

29.00 Vdc 27.00 Vdc

75 Adc

21.00 Vdc

Metro RF Frame current draw per feed (A or B) with all PAs

transmitting at full RF output power

Metro RF Frame power distribution voltage drop (from the

feed input at the RIP to any module)

0.65 Vdc

Metro RF Frame power distribution resistance (from the

feed input at the RIP to any module)

MOhms

Metro RF Frame operating voltage range (measured at the

RIP power feed input)

29.00 Vdc 27.00 Vdc 21.60 Vdc

Metro RF Frame minimum voltage to guarantee maximum

PA RF power is available (measured at the RIP power feed

input)

26.20 Vdc

Power Plant normal operating "Float" voltage range

Power Plant "Equalize" voltage (one to two days)

Power Plant voltage drop

27.60 Vdc 27.25 Vdc

29.00 Vdc

27.00 Vdc

0.25 Vdc

Maximum power feed length (measured from Metro RF

Frame RIP to Power Plant breaker

#2/0 AWG or Welding Copper Wire

#1/0 AWG or Welding Copper Wire

60 feet

47 feet

Absolute maximum voltage (no damage, non-operational,

applied continuously)

30.50 Vdc

Transient voltage immunity (Metro RF Frame modules) for

40 Vdc

300 µs

Noise from battery (system and module immunity)

into 600 Ohms

56 dBmC

100 mV

(rms)

from 10 kHz to 20 MHz in 3 kHz BW into 50 Ohms

from dc to 100 MHz into Hi-Z

250 mV

(p-p)

Noise to battery (system and module emissions)

from 300 Hz to 10 kHz (where Ip is the steady state

dc current draw)

9+10logIp

dBmC

from 10 kHz to 1 MHz

Ip**0.5mV

(rms)

Broadband noise

250 mV

(p-p)

Battery step (system and module immunity) within nominal

operating range with 1 V/ms maximum rate of change)

±3 Vdc

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5-4 Power and Grounding Requirements

The input voltage for other communication equipment is typically -48 Vdc

nominal. The voltage range at the Power Distribution Centre (or other type of

a branch panel) shall not exceed the range between -43.75 Vdc to -55.80 Vdc.

The input power is usually obtained from a centralized plant, which may be

shared with other systems or dedicated to the equipment.

Power plant batteries provide backup power for the equipment in case of

power outage. The backup time is typically 8 hours at the site with no engine-

alternator or 3 hours at the site with an emergency engine-alternator.

The grounding system of radio and transmission equipment typically conform

to the Common Bonding Network (CBN) bonding topology.

Switching equipment conforms to the Isolated Bonding Network (IBN)

grounding topology (typically, Star-IBN or Sparse-Mesh-IBN). Some

systems also use a Star-IBN bonding topology where the Logic Return (LR)

is isolated from the Framework Ground (FG) except at one clearly defined

point.

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Power and Grounding Requirements 5-5

Frame power distribution

Figure 5-1 shows the distribution network for supplying power to the cell site

components in the CE and RF Frames.

Figure 5-1

Power distribution for the CE and RF Frames in a Metrocell

RIP/Breaker

Breaker1

Breaker9

Duplexer Shelf

DRUM Shelf

ACU Shelf

Breaker10

Breaker11

Breaker2

Breaker3

Breaker4

Breaker5

Breaker9

Breaker12

ATC Shelf 3

Breaker12

HSMO Shelf

CSM2 Shelf

TRU 21,22

DPA 11

TRU 23,24

DPA 12

Breaker8

Breaker7

Breaker13

Breaker14

TRU/PA Shelf 3

Breaker13

TRU 17,18

DPA 9

TRU 19,20

DPA 10

RMC Shelf

(one to six)

Breaker6

Breaker15

ATC Shelf 2

TRU 13,14

DPA 7

TRU 15,16

DPA 8

Breaker5

Breaker4

Breaker16

Breaker17

TRU/PA Shelf 2

TRU 9,10

DPA 5

TRU 11,12

DPA 6

Breaker8

Breaker16

ICRM Shelf

Breaker3

Breaker18

ATC Shelf 1

TRU 5,6

DPA 3

TRU 7,8

DPA 4

Breaker2

Breaker1

Breaker19

Breaker20

TRU/PA Shelf 1

Blank

TRU 1,2

DPA 1

TRU 3,4

DPA 2

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5-6 Power and Grounding Requirements

System power protection

There are three levels of protection at a Metrocell cell site. The first level is at

the power plant which may consist of a hydraulic-magnetic breaker or slow-

blow fuse. This stage is not provided by Nortel. The second level of

protection is located in the RIP of the frames that consists of a magnetic

breaker. In some cases, a third level of protection is implemented in the

equipment shelf such as the TRU/DPA shelf fans and the ATC shelf and

usually consists of a faster blow fuse. This arrangement isolates faults that

occur lower down in the hierarchy from affecting circuits higher up.

Grounding

UL/CSA approval

The North American electrical codes require that there be no current over the

grounding conductors (see C22.1 par 10-200 and ANSI/NFPA No. 70 article

250-21) and the safety standards specify that the electrical codes be adhered

to. The Metrocell uses a two-wire DC power distribution scheme. In a

grounded two-wire system, the return and ground are multiply connected and

an unspecified amount of the return current can flow over the grounding

conductors in violation of the electrical code rules.

Therefore, each cell site has to be inspected by a safety authority (UL/CSA in

North America) such that the codes requirements (refer to UL-1459 par 14.2

and 34.6 and CSA C22.2 No. 225 par 4.5.3.1a) are met in order to obtain an

approval from that authority.

UL-1459 par 14.2

A product intended for permanent connection to the branch-circuit supply

shall have provision for the connection of one of the wiring methods in

accordance with the National Electrical Code, ANSI/NFPA No. 70.

UL-1459 par 34.6

A field-wiring terminal intended solely for connection of an equipment-

grounding conductor shall be capable of securing a conductor of the size rated

for the application in accordance with the National Electrical Code ANSI/

NFPA No. 70.

CSA C22.2 N0. 225 par 3.5.3.1a

Permanently connected equipment shall be provided with wiring terminals or

leads for the connection of conductors not less than 14 AWG and having an

ampacity not less than 125% of the rated input current.

UL would not accept the grounding of the battery return when the battery/cell

site configuration is not in the same room unless the battery is floating. A

dedicated battery/cell site configuration residing in the same equipment room

would not raise any concerns. CSA would have no objections to a grounding

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Power and Grounding Requirements 5-7

scheme if the system input power is less than 50V thus not requiring any

ground (see CEC par 10-102).

CEC par 10-102

Two wire direct-current systems supplying interior wiring and operating at

not more than 300 V or less than 50 V between conductors shall be grounded,

unless such system is used for supplying industrial equipment in limited areas

and the circuit is equipped with a ground detector.

The interpretation of "objectionable current" is to be aligned with the leakage

current limits as defined in CSA 950 (maximum 5% current rating) or CSA

225 (maximum 10% current rating). The NEC definition of "objectionable

current" is any current not suitable for a particular installation; which would

include leakage current limits, grounding conductor size, electrochemical

potential between dissimilar metals, etc.

Grounding requirements for the Metrocell is to keep the total return current on

the grounding network below 5% of the total system DC current draw. This is

done by:

1. Making the desired return path a much lower resistance than the

undesired return path (that is, current divider principle). Eliminating the

grounding conductor at the power plant will help discourage return

current flow through the supplementary grounding conductor.

2. Minimize equalization currents between frames via the grounding

conductors and antenna coax, etc. This is achieved by adhering to an

isolated mesh grounding concept. The mesh concept means that all the

metal surfaces (frames, shelves, PCP ground planes and module chassis)

within the system are bonded together with ideally as little contact

resistance as practically possible.

Isolation means that the system grounding mesh only makes contact with

other grounded systems at the local ground reference or BPG. This helps

to reduce the chance of ground currents from other systems from flowing

through the Metrocell grounding conductors. Isolation from building steel

should be facilitated by providing an isolation pad underneath each frame.

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5-8 Power and Grounding Requirements

DC coupled signals

DC coupled signals are considered undesirable from a grounding point of view

for the following reasons:

•

If a signal is routed to another system on a separate ground, then isolation

is lost due to a connection via the signal return.

Any noise on the system ground can resistively couple onto the signal

potentially causing degradation in system performance (for example, bit

errors on digital signals or unwanted noise pick-up on analog signals).

The Metrocell contains the following DC coupled signal links:

•

TRU terminal interface (RS-232 data only) — This potentially creates a

connection between the system ground and the AC ground in which the

connected terminal can affect system performance and damage

equipment. A RS-232 opto (for example, Telebyte model 268) is

recommended for this connection and this link should only be used in

commissioning or doing maintenance and not be connected in normal

operations.

•

Control signals between the TRU and DPA (TTL/COMS logic levels) —

These signals are restricted to the shelf backplane only.

Alarm signals between the ATC shelf and the TRU/DPA shelf (+27 V) —

These signals are restricted between the two shelves on the Metro RF

Frame which provides a good low resistance ground to frame.

•

Interframe alarm signals (+27V) — These signals are actually opto-

isolated at the receive end (that is, at the ACU). The return path is through

the system framework ground.

ATC remote interface (RS-232 or RS-485) — (Future Development.)

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Power and Grounding Requirements 5-9

Cable Identification

It is a current practice to label or color-code insulated conductors. The

following table shows the labeling and colors of insulated wires used in North

America.

Table 5-2

Cable identification - North America

Conductor Potential

Function

Label

Color Code (if used)

+24 Vdc

dc power

L+

(typically black with a

tag)

0 V (grounded side of

the +24 Vdc power

supply)

dc power return,

battery return,

BR conductor

L-

(typically black with a

tag)

-48 Vdc /-60 Vdc

dc power

L-

(typically black with a

tag)

0 V (grounded side of

the -48/-60 Vdc power

supply)

dc power return,

battery return, BR

conductor

L+

(typically black with a

tag)

grounded (or bonded

to ground)

framework ground,

framework bonding

conductor

green (50%) yellow

(50%)

grounded (or bonded

to ground)

ac equipment

grounding conductor

none

green (N. America)

green + yellow

(Europe)

Framework Ground or Framework Bonding conductors are also known as

"Protective Earth" as per IEC-950. The 50/50 green yellow ratio must be no

less than 30% and no more than 70% for either color.

Note: Countries outside North America may have different labeling and

color coding of cables. Follow the safety standards for installation and

maintenance of electrical equipment in your country accordingly.

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5-10 Power and Grounding Requirements

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6-1

Datafilling a Metro Cell Site

Datafill Overview

This section outlines the differences which you should consider when

datafilling a Metro site. It makes no attempt at dealing with the entire datafill

procedure and assumes that you are familiar with the MTX Cell Site Datafill

Procedures. Please refer to NTP 411-2131-461 ICP Datafill Guidefor

information concerning the entire Cell Site Table Datafill.

A Metro Cell site looks for all intensive purposes like any other ICP/ICRM

cell site to the MTX. It uses all the same tables, loads, and parameters as do

the previous ICP/ICRM methods. The outstanding difference, which is

apparent, is that more Trunks and DSPMs will be required to service the

additional radios that the Metro RF frame is equipped with. The following

datafill tables will be addressed in the view of differences to keep in mind

when datafilling a Metro Cell Site:

Table 6-1

Datafill differences of the Metrocell from an NT800DR cell

Table

Metro differences

CLLI

More trunks should be assigned as each RF frame can be

equipped with 8 more radios than a standard macrocell frame.

ACUALM

CCHINV

PA Fan Alarms are laid out differently with the new RF frame.

The RF frame location of the DRU should be correctly identified

in relation to the ICRM P-side card port number.

LCRINV

VCHINV

The RF frame location of the DRU should be correctly identified

in relation to the ICRM P-side card port number.

The RF frame location of the DRU should be correctly identified

in relation to the ICRM P-side card port number.

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6-2 Datafilling a Metro Cell Site

Table CLLI

Table CLLI defines both a name and a quantity to a certain MTX trunk

assignment. For the Metro application the number of trunks assigned in

TRKGRSIZ should be capable of supporting the additional VCHs supported.

The minimum number of trunks required is shown in Table 6-2 for various

Metro configurations with the maximum number of DRUs.

Table 6-2

Trunk requirement for different Metrocell configurations

Metro Site Type

Minimum Number of Trunks assigned to Table

CLLI field TRKGRSIZ

Omni site

120 Sectored (1 RF Frame)

60 Sectored (2 RF Frames)

Note: It is a good practice to assign more trunks than is necessary to

prevent from having to backtrack through all the Tables to change the

number in Table CLLI.

Table ACUALM

A Metrocell has input alarm points hardwired to the ACU. The alarm points

for the CE Frame remain the same as per the standard NT800DR Macro Cell

Site although their numbering scheme is changed. However the Metro RF

Frame alarm points differ. The alarm point configuration for each Metro RF

Frame has 23 alarm points to be datafilled in Table ACUALM. The alarm

points monitor the:

•

TRU/DPA cooling fans

A and B side DC power filters

ATC: cavities, DC power, and cooling fan

The alarm points are also assigned for each DRU in the frequency assignment

tables (CCHINV, LCRINV, VCHINV) of the Metro Cell Site.

The MTX alarm point numbers for the hardwired Metro RF frame alarm

points are listed in Table 6-3 and Table 6-4 for the MTX Table ACUALM.

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Datafilling a Metro Cell Site 6-3

Table 6-3

MTX Datafill Alarm Points for Metro RF Frame

Metro RF Shelves Fan Alarm

Points

Metro RF Frame ATC

Alarm Points

Shelf #

FAN 1 FAN 2 FAN 3 FAN 4

ATC # Cavities

Fan

Pwr

100

104

108

160

164

101

105

109

161

165

112

113

114

115

176

177

116

118

120

122

180

182

117

119

121

123

181

183

102

106

110

162

166

103

107

111

163

167

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6-4 Datafilling a Metro Cell Site

Table 6-4

MTX Alarm Points Datafill Numbers for Metro RF Frame

Metro RF Frame Power Filter Alarm Points

Metro RF Frame #

Power Filter A-Side

Power Filter B-Side

124

188

125

189

The MTX Datafill alarm points for the CE frame are shown in Table 6-5.

Table 6-5

MTX Alarm Points Datafill Numbers for Metro CE Frame components

Alarm

name

Alarm

point

Alarm

name

Alarm

point

Alarm

name

Alarm

point

Alarm

name

Alarm

point

HSMO +27V A

CSM2

128

132

134

138

142

146

152

HSMO +27V B

129

HSMO #1

130

HSMO #2

131

RMC +27V A1

RMC LNA1

RMC LNA5

RMC LNA9

ICRM 1

RMC +27V B1

RMC LNA2

RMC LNA6

RMC LNA10

ICRM 2

135

139

143

147

153

RMC +27V A2

RMC LNA3

RMC LNA7

RMC LNA11

ICRM 3

136

140

144

148

154

RMC +27V B2

RMC LNA4

RMC LNA8

RMC LNA12

ICRM 4

137

141

145

149

155

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Datafilling a Metro Cell Site 6-5

Table VCHINV, CCHINV, LCRINV

The frequency assignment tables should be datafilled so that the TRU

location in the Metro RF Frame with respect to the port card of the ICRM are

correctly identified in the datafill tuple. Each physical location in the Metro

RF Frame corresponds with a port number of the NT8X47BA Port Card of

the ICRM. The datafill of these frequency assignment tables requires that the

P-side card and port number be defined. Each NT8X47BA Port Card of the

ICRM must be cabled to either J205 or J206 of the Metro RF Frame RIP.

Table 6-6 is a matrix of NT8X47BA port connections to the TRU number of

the Metro RF frame for each RIP connector.

Note: Even though channels can be datafilled on every Port Card and on

almost every Port (Exception: Card 8 Port 14, Card 8 Port 15, Card 9 Port

13, Card 9 Port 14, and Card 9 Port 15), it is recommended that the

Control Channel and its backup (Locate Receiver, Analog or Digital) be

datafilled on separate Port Cards (see Frequency Assignment Example).

Table 6-6

NT8X47BA Port Numbers for Metro TRU locations

RIP Connector J205

Rip Connector J206

METRO

TRU #

NT8X47BA

Port #

METRO

TRU #

NT8X47BA

Port #

RF Frame 1

RF RIP

Duplexer

ATC 3

DPA DPA

11 12

DPA DPA

ATC 2

DPA DPA

ATC 1

DPA DPA

Base

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6-6 Datafilling a Metro Cell Site

Frequency Assignment Example

An example configuration is shown in Figure 6-1. In this example The ICRM

virtual port card 0 is hardwired to the RIP Connector J205 and virtual port

card 1 is hardwired to RIP Connector J206 (see Figure 6-2). Since port card 0

is hardwired to J205 it will be connected to all the TRUs with odd numbered

Metro locations (Refer to the Metro RF Frame Figure for the TRU numbering

scheme). Hence port card 1, which is hardwired to J206, will be connected to

all the TRUs with even numbered Metro locations.

Five datafill tuples are shown in the example figure for:

•

a CCH,

a Digital Locate Receiver (DLR)—serving as the CCH backup in this

example,

•

an Analog Locate Receiver (ALR)—can be assigned to any TRU, and

two VCH TRU personalities.

The table in the figure shows the location of the five TRUs with respect to

their Metro shelf locations.

Figure 6-1

Example of Metro TRU datafill

Table CCHINV

CCHKEY

49 0

CHANNO

331

BACKUP

Y 0 AUTOTUNE

MODE

TERMATTR

CARD

PORT

ALRAMPT

COMBINED TRU2AN60

Table LCRINV

LCRKEY

49 0

CCHBACKED

Y 0

ADMODE

TDMA3

ANALOG

TERMATTR

TRU2AN60

CARD

PORT

ALARMPT

LCRTEST

49 1

Table VCHINV

VCHKEY CHANNO

ADMODE

TDMA3

GROUP

TRKMEMS

TERMATTR CARD PORT ALARMPT XCVRSAT

49 1

49 4

289

(000) (1)(101)(201) TRU2AN60

DEFAULT

226 ANALOG_TDMA3 (001) (4)(104)(204) TRU2AN60

Channel and Frequency

CCH 0 (331)

ICRM location

Card 0 Port 0

Card 1 Port 1

Card 1 Port 2

Card 0 Port 1

Card 1 Port 3

RF Frame location

TRU Slot 1

LCR 0 (DLR)

TRU Slot 4

LCR 1 (ALR)

TRU Slot 6

VCH 1 (289)

TRU Slot 3

VCH 4 (226)

TRU Slot 8

Note: J205 and J206 are cabled to the ICRM port cards as shown in Figure 6-2.

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Datafilling a Metro Cell Site 6-7

Figure 6-2

Example of Metro ICRM/TRU hardwire configuration

Physical Port Card Slot Location

20 21

17 18 19

ICRM

Logical Port Card Slot Locations

Metro

RF RIP

J201 J202 J203 J204 J205 J206 J207 J208 J209

Connector Assignments

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6-8 Datafilling a Metro Cell Site

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7-1

Appendix A: DualMode Metrocell Cell

Site Specifications

System Configuration

Channel capacity

Up to 120 RF Channels for Omni cell sites

Up to 8, 16 or 24 RF Channels per sector

for 120° STSR cell sites

Up to 8 or 16 RF Channels per sector for

60° STSR cell sites

Locate capacity

23,077 locates/hr./locate transceiver

22,464 messages/hr.

Control channel capacity

Radio Frequency

Radio frequency band

Receive: 824 to 849 MHz

Transmit: 869 to 894 MHz

±0.25 ppm

Frequency stability

Channel spacing

Duty cycle

30 kHz

Continuous

PA power: Maximum

43.5 dBm (22.4 Watts) ±0.5 dB

23.5 to 43.5 dBm (0.22 to 22.4 Watts)

Adjustment range

Note: Adjustment range is the range of requested powers which

may be typed into the TRU terminal interface.

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7-2 DualMode Metrocell Cell Site Specifications

Transmit path insertion loss (including ATC, duplexer and cable losses):

8 channels

16 channels

24 channels

-4.4 dB maximum

-4.7 dB maximum

-5.0 dB maximum

Minimum antenna input RF power (at the ANT port of the duplexer):

8 channels

16 channels

24 channels

38.6 dBm (7.33 watts)

38.3 dBm (6.68 watts)

38.0 dBm (6.38 watts)

Intermodulation spurious emissions< -60 dBc

Receive path insertion gain (ANT port of duplexer to TRU input port)

+3 dB ±2 dB

Receiver sensitivity for 12 dB SINAD C message weighting:

Analog mode

Digital mode

< -119 dBm

< -113 dBm

< 3 dB

Receiver de-sensitization

Antenna port impedance

50 ohms unbalanced

Audio Interface

Audio impedance

600 ohms balanced

Audio output levels:

Nominal -18 dBm @ ±2.9 kHz

Adjustable in fractional units, up to two

decimal points, from -28.0 dBm to -10.0

dBm for the transmit path and from -28.0

dBm to -16.0 dBm for the receive path

Alarms

Base station

192 points

Auxiliary alarms

16 assemble points (cabinet, power, tower,

etc.)

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DualMode Metrocell Cell Site Specifications 7-3

DC Power Requirements

Grounding

As specified in Northern Telecom’s

NTP-297-1001-156

Voltage

Nominal +27.0 Vdc ±0.5 Vdc

Range +21.0 Vdc to 29.0 Vdc

Ripple

400 millivolts

Spurious 0.005 - 10 MHz

Noise

< -55 dBm @ 0.3 to 3.4 kHz

< 32 dBrnC (600 ohms bridged)

±1% of pre-set voltage @ 0-100% load

< 600 ms for a step of 10-70% load

Voltage stability

Voltage response

Voltage over/under shoot

< 20% of pre-set voltage for a step of

10-70% load

Power Distribution Requirements

Channel/Frames

Current Breakers

Mechanical

Rack dimension

Height 84" (213.4 cm)

Width 22" (56 cm)

Depth 24" (61 cm), including cables and

excluding unit handles

Clearance and Access

Ceiling 8 feet (7.5 feet. after cable tray

installation

Front aisle 3 feet

Rear aisle 2 feet

Building access door are required to be a

minimum of 30 inches wide

Weight CE frame

RF Frame

400 lb. @ 80 lb./sq. ft.

950 lb. @ 115 lb./sq. ft.

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7-4 DualMode Metrocell Cell Site Specifications

Paint

Maple Brown # SCP-717-R1

Nortel Logo

Marking

Packaging

Frames

ShockAir bubble sheet and Styrofoam

packaging material

Vibration

Styrofoam sandwich pallet

Wood, 2 x 4 braces

5 mil polyethylene

Bracing and support

Moisture

Transport

Air ride shock

Modules

Separate shipping carton

Environmental

Operating temperature

Normal operation

+5°C to +40°C (+41°F to +105°F)

Short-term operation 0°C to +50°C (+32°F to 120°F)

Note: Short-term refers to a period of not more than 72

consecutive hours and a total of not more than 15 days in one year.

Thermal cycling

Capable of withstanding the changes in

temperature at the rate of 1°C (1.8°F) in

three minutes over the short-term operating

temperature range

Operating Relative Humidity

20 to 95% (non-condensing) over nominal

temperature range and not to exceed 0.024

lb of water/lb of dry air

Altitude

61 meters (200 feet) below sea level to

4000 meters (13,000 feet) above sea level

Shock and vibration

Screw lock on required modules

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DualMode Metrocell Cell Site Specifications 7-5

Earthquake

Meet earthquake requirements of Zone 1

and Zone 2 as defined by Bellcore

TR-NWT-000063

Fixed equipment anchorage.

Thermal dissipation for Metrocell RF Frame:

Component

Dissipation per

unit

Maximum

number of units

Total

dissipation

TRU

27 W

89 W

21 W

9.3 W

648 W

2136 W

504 W

28 W

Combiner (-4.5 dB)

Duplexer (-0.7 dB)

Total

3.3 KW

Regulatory

Electromagnetic Emissions

Cell site equipment complies with the following Regulatory Specification:

•

FCC part 22 for 800 MHz frequency

FCC part 15 Class B for cell site with Universal CE Frame and Metro RF

Frame (except for the ICRM, CSM, HSMO and ACU shelves located on

the Universal CE Frame)

•

DOC RSS-128 Issue 1.0 Dual Mode Capability in Canada

Radiated Emissions

Cell site equipment complies with the following Regulatory Specification:

•

FCC Part 22 for 800 MHz frequency

FCC Part 15 Class B for cell site with Universal CE Frame and Metro RF

Frame (except for the ICRM, CSM, HSMO and ACU shelves located on

the Universal CE Frame)

•

Bell Canada Design Standard TAD 8465 of Bellcore TR-NWT-001089 in

10 kHz to 30 MHz and 1 GHz to 10 GHz range for radiated emission

Telecom Compliance

Cell site equipment complies with the following Regulatory Specification:

•

CS03, Issue 7, Part 2 (Table 1: Digital Interface Requirement, Type IV)

FCC Part 68 (TSB31, Table 4.5-2: Test Requirement Matrix)

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7-6 DualMode Metrocell Cell Site Specifications

Product Safety

Cell site equipment complies with the following Safety Specification:

•

CSA C22.2 No. 225-M90, Telecommunication Equipment

CSA C22.2 No. 1, Radio, Television and Electronic Apparatus

UL-1459, Issue 2.0 Telephone Standard

UL-1419, Proposed Video and Audio Equipment

Nortel Standard 9001.00, Product Safety

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Frequency Plans 7-7

Appendix B: Frequency Plans

N=7 Frequency plan (Band A)

Group

Channel 333 332 331 330 329 328 327 326 325 324 323 322 321 320 219 318 317 316 315 314 313

Number 312 311 310 309 308 307 306 305 304 303 302 301 300 299 298 297 296 295 294 293 292

291 290 289 288 287 286 285 284 283 282 281 280 279 278 277 276 275 274 273 272 271

270 269 268 267 266 265 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250

249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229

228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208

207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187

186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166

165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145

144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124

123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103

102 101 100

1023 1022 1021

1020 1019 1018 1017 1016 1015 1014 1013 1012 1011 1010 1009 1008 1007 1006 1005 1004 1003 1002 1001 1000

999 998 997 996 995 994 993 992 991

716 715 714 713 712 711 710 709 708 707 706 705

704 703 702 701 700 699 698 697 696 695 694 693 692 691 690 689 688 687 686 685 684

683 682 681 680 670 678 677 676 675 674 673 672 671 670 669 668 667

Note: The control channels are indicated inbold in these frequency plans

(they may be re-assigned as required).

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7-8 Frequency Plans

N=7 Frequency plan (Band B)

Group

Channel 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354

Number 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375

376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396

397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417

418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438

439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459

460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480

481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501

502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522

523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543

544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564

565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585

586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606

607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627

628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648

649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666

717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732

733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753

754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774

775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795

796 797 798 799

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Frequency Plans 7-9

N=4 Frequency plan (Band A)

Group

Channel 333 332 331 330 329 328 327 326 325 324 323 322 321 320 219 318 317 316 315 314 313 312 311 310

Number 309 308 307 306 305 304 303 302 301 300 299 298 297 296 295 294 293 292 291 290 289 288 287 286

285 285 283 282 281 280 279 278 277 276 275 274 273 272 271 270 269 268 267 266 265 264 263 262

261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238

237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214

213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190

189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166

165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142

141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118

117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99

1023 1022 1021

1020 1019 1018 1017 1016 1015 1014 1013 1012 1011 1010 1009 1008 1007 1006 1005 1004 1003 1002 1001 1000 999 998 997

996 995 994 993 992 991

716 715 714 713 712 711 710 709 708 707 706 705 704 703

702 701 700 699 698 697 696 695 694 693 692 691 690 689 688 687 686 685 684 683 682 681 680 679

678 677 676 675 674 673 672 671 670 669 668 667

N=4 Frequency plan (Band B)

Group

Channel 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357

Number 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381

382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405

406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429

430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453

454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477

478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501

502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525

526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549

550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573

574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597

598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621

622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645

646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666

717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740

741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764

765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788

789 790 791 792 793 794 795 796 797 798 799

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7-10 Frequency Plans

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Family Product Manual Contacts Copyright Confidentiality Legal statements DocInfo

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DualMode Metrocell

Cell Site Description

Manual

Wireless Customer Documentation, Manager

Nortel

P.O. Box 833858

Richardson, Texas 75083-3858

Phone: (214) 684-1770 / Fax: (214) 684-3977

NORTHERN TELECOM CONFIDENTIAL: The

information contained in this document is the property of

Northern Telecom. Except as specifically authorized in writing by

Northern Telecom, the holder of this document shall keep the

information contained herein confidential and shall protect same

in whole or in part from disclosure and dissemination to third

parties and use same for evaluation, operation, and

maintenance purposes only.

Information is subject to change without notice.

DMS, DMS SuperNode, DMS-MSC, DMS-HLR, DMS-100, and

MAP are trademarks of Northern Telecom.

Publication number: 411-2021-111

Product release: DualMode Metrocell Cell Site Description

Manual

Document release: Standard 01.01

Date: June 1996

Printed in the United States of America

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