Motorola 89FC5798 P Users manual

APPLICANT: MOTOROLA EQUIPMENT TYPE: ABZ89FC5798-P

INSTRUCTION MANUALS

Excerpts from the instruction and service manuals for this base radio are available and have been included as part of the filing package in the form of an e le ctronic pdf document.

Upon request, published and/or printed manuals will be sent to the commission and/or telecommunication certification body (TCB). All of the descriptions and schematics included this filing package are up to date.

EXHIBIT 8

APPLICANT: MOTOROLA INC. EQUIPMENT TYPE: ABZ89FC5798-P

TUNE-UP PROCEDURE

There is no field tune-up procedure. All adjustments are software controlled and are pre-set at the factory. Certain station operating parameters can be changed via man-machine interface (MMI) commands, within predetermined limits. Examples include transmit / receiver operating frequencies and power level.

EXHIBIT 9

Technical Manual

iDEN

Enhanced Base Transceiver System (EBTS)

Volume 2 of 3 Base Radios

68P80801E35-E

16-June-06

RF SUB-SYSTEM

Notice to Users

No part of this publication, or any software included with it, may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, including but not limited to, photocopying, electronic, mechanical, recording or otherwise, without the express prior written permission of the copyright holder. Motorola, Inc. provides this document “AS IS” without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Motorola reserves the rights to make changes or improvements in the equipment, software, or specifications described in this document at any time without notice. These changes will be incorporated in new releases of this document.

Computer Software Copyrights

The Motorola and 3 Motorola and other 3 States and other countries preserve for Motorola and other 3 programs, including the exclusive right to copy or reproduce in any form of the copyrighted computer program. Accordingly, any copyrighted Motorola or other 3 instruction manual may not be copied, reverse engineered, or reproduced in any manner without the express prior written permission of Motorola or the 3 either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Motorola or other 3

Party supplied SW, except for the normal non-exclusive, royalty free license to use that arises by operation of law in

Party supplied Software (“SW”) products described in this instruction manual may include copyrighted

Party supplied computer programs stored in semiconductor memories or other media. Laws in the United

Party supplied SW computer programs contained in the Motorola products described in this

Party SW supplier. Furthermore, the purchase of Motorola products shall not be deemed to grant,

Party supplied SW certain exclusive rights for copyrighted computer

the sale of a product.

Use and Disclosure Restrictions

The software described in this document is the property of Motorola, Inc. It is furnished under a duly executed license agreement and may be used and/or disclosed only in accordance with the terms of the said agreement.

The software and documentation contained in this publication are copyrighted materials. Making unauthorized copies is prohibited by law. No part of the software or documentation may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, without the express prior written permission of Motorola, Inc.

Trademarks

MOTOROLA, the Stylized M Logo, iDEN, and Message Mail are trademarks or registered trademarks of Motorola, Inc. in the United States and other countries.

All other product or services mentioned in this document are identified by the trademarks or service marks of their respective companies or organizations, and Motorola, Inc. disclaims any responsibility for specifying their ownership. Any such marks are used in an editorial manner, to the benefit of the owner, with no intention of infringement.

While reasonable efforts have been made to assure the accuracy of this document, this document may contain technical or typographical errors or omissions. Motorola, Inc. and its subsidiaries and affiliates disclaim responsibility for any labor, materials, or costs incurred by any person or party as a result of using this document. Motorola, Inc., any of its subsidiaries or affiliates shall not be liable for any damages (including, but not limited to, consequential, indirect, incidental, or special damages or loss of profits or data) even if they were foreseeable and Motorola has been informed of their potential occurrence, arising out of or in connection with this document or its use. Motorola, Inc. reserves the right to make changes without notice to any products or services described herein and reserves the right to make changes from time to time in content of this document and substitute the new document therefor, with no obligation to notify any person or party of such changes or substitutions.

Contact Information

Motorola, Inc. Networks business 1501 Shure Dr. Arlington Heights, IL 60004 U.S.A

SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

About This Volume

Volume 2 of the Enhanced Base Transceiver System (EBTS) manual, Base Radios, provides the experienced service technician with an overview of the EBTS operation and functions, and contains information regarding the 800 MHz, 900 MHz, 800/900 MHz QUAD Channel, and 800/900 MHz QUAD+2 Channel base radios.

The EBTS has three major components:

■ Generation 3 Site Controller (Gen 3 SC) or integrated Site Controller (iSC)

■ Base Radios (BRs)

■ RF Distribution System (RFDS)

Installation and testing is described in Volume 1, System Installation and Testing, and RFDS are described in Volume 3, RF Distribution Systems (RFDS). Detailed information about the Gen 3 SC is contained in the Gen 3 SC Supplement Manual, 68P80801E30. Detailed information about the iSC is

contained in the iSC Supplement Manual, 68P81098E05

The information in this manual is current as of the printing date. If changes to this manual occur after the printing date, they will be documented and issued as Schaumburg Manual Revisions (SMRs).

Enhanced Base Transceiver System (EBTS)

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About This Volume Volume 2

Audience Profile

Audience Profile 0

The target audience of this document includes field service technicians responsible for installing, maintaining, and troubleshooting the EBTS.

In keeping with Motorola’s field replaceable unit (FRU) philosophy, this manual provides sufficient functional information to the FRU level. Please refer to the appropriate section of this manual for removal and replacement instructions.

Enhanced Base Transceiver System (EBTS)

-vi 68P80801E35-E 16-June-06

Volume 2 About This Volume

Related Manuals

Related Manuals 0

The following publications may be required to supplement the information contained in this manual:

Number Title Description

Provides detailed information about the Gen 3 SC including a description of major subsystems, components, installation, testing, troubleshooting, and other information

Provides detailed information about the iSC including a description of major subsystems, components, installation, testing, troubleshooting, and other information.

A useful reference for the installation of fixed network equipment. This manual provides guidelines and procedures to ensure the quality of Motorola radio equipment installation, integration, optimization, and maintenance. Field service personnel should be familiar with the guidelines and procedures contained in this publication.

68P80801E30

68P81098E05

68P81089E50

Generation 3 Site Controller (Gen 3 SC) - System Manual

Integrated Site Controller (iSC) System Manual

Motorola Standards and Guidelines for Communications Sites

6881131E90

iDEN Guide to Motorola Acronyms and Terms

A useful reference for Motorola used Acronyms and Terms.

Enhanced Base Transceiver System (EBTS)

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About This Volume Volume 2

Customer Network Resolution Center

Customer Network Resolution Center 0

The Customer Network Resolution Center (CNRC) is a integral part of the network support process.

Before performing any major changes or optimization on the system, please contact the CNRC. Notify the CNRC with the nature of the change and the schedule for the change. This will allow CNRC to have the correct technical support engineers on call in case they are needed.

Please refer to the Customer Guide to iDEN Customer Network Resolution Center (CNRC) (WP2000-003) for more information regarding:

■ Procedures for calling CNRC

■ Classification of trouble tickets

■ The escalation processes

This document is located on the iDEN extranet website at the URL:

http://mynetworksupport.motorola.com

The CNRC can be contacted at the following telephone numbers:

Domestic

(800) 499-6477

International

Brazil: 0-800-891-5895 Mexico: 001-800-499-6477 Peru: 0-800-52-121 Colombia: 01-800-700-1614 Argentina: 0-800-666-1559 China: 10-800-130-0617 Singapore: 800-1301-285 Philippines: 1-800-1-116-0119 Korea: 00-308-13-1358

All other International locations:

1+847-704-9800

Enhanced Base Transceiver System (EBTS)

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Volume 2 About This Volume

Manuals On-line

Manuals On-line 0

This manual is available on the World Wide Web at mynetworksupport, the iDEN customer site. This site was created to provide secure access to critical iDEN Infrastructure information. This web site features a library of iDEN Infrastructure technical documentation such as bulletins, system release documents and product manuals.

The documents are located on the secured extranet website at the URL:

https://mynetworksupport.motorola.com

For information on obtaining an account on this site, go to:

https://membership.motorola.com/motorola

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About This Volume Volume 2

Reporting Manual Errors

Reporting Manual Errors 0

If you locate an error or identify a deficiency in this manual, please take the time to contact us at the following email address:

tpid23@motorola.com

Be sure to include your name, fax or phone number, the complete manual title and part number, the page number where the error is located, and any comments you may have regarding what you have found.

Thank you for your time. We appreciate any comments from the users of our manuals.

Enhanced Base Transceiver System (EBTS)

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Volume 2 About This Volume

Conventions

Conventions 0

Software ■ submenu commands—Table > Table Designer

■ new terms—mobile subscriber

■ keystrokes—Ctrl+Alt+Delete, Return

■ mouse clicks—click, double-click

■ user input—Type delete

■ screen output—DAP is starting....

Hardware ■ CD-ROM

Safety This manual contains safety notices (alerts). Alerts are based on the standards

that apply to graphics on Motorola equipment. Specific procedural notices are stated in the procedures as required and have specific visual representations. The representations are:

DANGER

INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS INJURY.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury.

CAUTION

Without the alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

Important Indicates an item of the essence of a topic that is indispensable.

Note Indicates something of notable worth or consequence.

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About This Volume Volume 2

Product Specific Safety Notices

Product Specific Safety Notices 0

The specific procedural safety precautions are stated in the procedures and are also listed here.

Enhanced Base Transceiver System (EBTS)

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Volume 2 About This Volume

General Safety

General Safety 0

Important Remember Safety depends on you!!

General safety precautions must be observed during all phases of operation, service, and repair of the equipment described in this manual. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the equipment.

You must heed the safety precautions and warnings listed in the product manuals for your equipment. Any individual using or maintaining the product(s), should follow these warnings and all other safety precautions necessary for the safe operation of the equipment in your operating environment. Motorola, Inc. assumes no liability for failure to comply with these requirements.

Keep Away From Live Circuits

DANGER

HAZARDOUS VOLTAGE, CURRENT, AND ENERGY LEVELS ARE PRESENT IN THIS PRODUCT. POWER SWITCH TERMINALS CAN HAVE HAZARDOUS VOLTAGES PRESENT EVEN WHEN THE POWER SWITCH IS OFF. DO NOT OPERATE THE SYSTEM WITH THE COVER REMOVED. ALWAYS REPLACE THE COVER BEFORE TURNING ON THE SYSTEM.

Operating personnel must:

■ Not remove equipment covers. Only Factory Authorized Service Personnel

or other qualified maintenance personnel may remove equipment covers for internal subassembly, or component replacement, or any internal adjustment.

■ Not replace components with power cable connected. Under certain

conditions, dangerous voltages may exist even with the power cable removed.

■ Always disconnect power and discharge circuits before touching them.

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About This Volume Volume 2

General Safety

Ground the Equipment

Electro-Static Discharge

To minimize shock hazard, the equipment chassis and enclosure must be connected to an electrical earth ground. The power cable must be either plugged into an approved three-contact electrical outlet or used with a threecontact to two-contact adapter. The three-contact to two-contact adapter must have the grounding wire (green) firmly connected to an electrical ground (safety ground) at the power outlet. The power jack and mating plug of the power cable must meet International Electrotechnical Commission (IEC) safety standards.

Motorola strongly recommends that you use an anti-static wrist strap and a conductive foam pad when installing or upgrading the system. Electronic components, such as disk drives, computer boards, and memory modules, can be extremely sensitive to Electro-Static Discharge (ESD). After removing the component from the system or its protective wrapper, place the component flat on a grounded, static-free surface, and in the case of a board, componentside up. Do not slide the component over any surface.

If an ESD station is not available, always wear an anti-static wrist strap that is attached to an unpainted metal part of the system chassis. This will greatly reduce the potential for ESD damage.

Do Not Operate In An Explosive Atmosphere

Do Not Service Or Adjust Alone

Use Caution When Exposing Or Handling a CathodeRay Tube

Do Not Substitute Parts Or Modify Equipment

Do not operate the equipment in the presence of flammable gases or fumes. Operation of any electrical equipment in such an environment constitutes a definite safety hazard.

Do not attempt internal service or adjustment, unless another person, capable of rendering first aid and resuscitation, is present.

Breakage of the Cathode-Ray Tube (CR T) causes a high-velocity scattering of glass fragments (implosion). To prevent CR T implosion, avoid rough handling or jarring of the equipment. The CRT should be handled only by qualified maintenance personnel, using approved safety mask and gloves.

Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification of equipment. Contact Motorola Warranty and Repair for service and repair to ensure that safety features are maintained.

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Installation Volume 1

Introduction

Introduction 3

The procedures described in this section assume the field technician or installer has knowledge of the installation techniques contained in the Quality

Standards Fixed Network Equipment - Installation Manual (Motorola

Standards and Guidelines for Communication Sites "R56" (68P81089E50)).

Note Prior to performing the installation procedures, prepare the site with

all associated antennas, phone lines, and other related site equipment. This information is covered in the Pre-Installation section of this manual.

General Safety Precautions

Important Compliance with FCC guidelines for human exposure to

Electromagnetic Energy (EME) at Transmitter Antenna sites generally requires that Personnel working at a site shall be aware of the potential for exposure to EME and can exercise control of exposure by appropriate means, such as adhering to warning sign instructions, using standard operating procedures (work practices), wearing personal protective equipment, or limiting the duration of exposure. For more details and specific guidelines, see Appendix A of the R56 Standards and Guidelines for Communications Sites (68P81089E50) manual.

Observe the following general safety precautions during all phases of operation, service and repair of the equipment described in this manual. Follow the safety precautions listed below and all other warnings and cautions necessary for the safe operation of all equipment. o Refer to the appropriate section of the product service manual for additional pertinent safety information. o Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modifications of equipment.

The installation process requires preparation and knowledge of the site before installation begins. Review installation procedures and precautions in the

Motorola Standards and Guidelines for Communication Sites "R56"

(68P81089E50) before performing any site or component installation.

Always follow all applicable safety procedures, such as Occupational Safety and Health Administration (OSHA) requirements, National Electrical Code (NEC) requirements, local code requirements, safe working practices, and good judgment must be used by personnel. Gen eral safety precautions include the following:

■ Read and follow all warning notices and instructions marked on the product

or included in this manual before installing, servicing, or operating the equipment.

■ Retain these safety instructions for future reference.

Enhanced Base Transceiver System (EBTS)

3-2 68P80801E35-E 16-June-06

Volume 1 Installation

Introduction

■ If troubleshooting the equipment while power is on, be aware of the live

circuits.

■ Do not operate the radio transmitters unless all RF connectors are secure

and all connectors are properly terminated.

■ All equipment must be properly grounded in accordance with the Motorola

Standards and Guidelines for Communication Sites "R56" (68P81089E50)

and specified installation instructions for safe operation.

■ Slots and openings in the cabinet are provided for ventilat ion. Do not block

or cover openings that protect the devices from overheating.

■ Only a qualified technician familiar with similar electronic equipment

should service equipment.

■ Some equipment components can become extremely hot during operation.

Turn off all power to the equipment and wait until sufficiently cool before touching.

■ Have personnel call in with their travel routes to help ensure their safety

while traveling between remote sites.

■ Institute a communications routine during certain higher risk procedures

where the on-site technician continually updates management or safety personnel of the progress so that help can be dispatched if needed.

■ Never store combustible materials in or near equipment racks. The

combination of combustible material, heat and electrical energy increases the risk of a fire safety hazard.

■ Equipment shall be installed in site meeting the requirements of a

"restricted access location," per UL60950-1, which is defined as follows: "Access can only be gained by service persons or by user who has been warned about the possible burn hazard on equipment metal housing. Access to the equipment is through the use of a tool or lock and key, or other means of security, and is controlled by the authority responsible for the location."

CAUTION

Burn hazard. The metal housing of product may become extremely hot. Use caution when working around the equipment.

CAUTION

All Tx and Rx RF cables' outer shields must be grounded per Motorola R56 requirements.

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Installation Volume 1

Introduction

CAUTION

DC input voltage shall be no higher than 60VDC. This maximum voltage shall include consideration of the battery charging "float voltage" associated with the intended supply system, regardless of the marked power rating of the equipment. Failure to follow this guideline may result in electric shock.

CAUTION

All Tx and Rx RF cables shall be connected to a surge protection device according to Motorola R56 documents. Do not connect Tx and Rx RF cables directly to outside antenna.

Enhanced Base Transceiver System (EBTS)

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Base Radio Volume 2

Overview

Overview 1

This chapter provides an overview of the 800 MHz Legacy, 800 MHz Generation 2 Single Channel, 800 MHz and 900 MHz QUAD Channel, and 800/900 MHz QUAD+2 Base Radios (BRs) along with technical information.

FRU Number to Kit Number Cross Reference

Table 1-1 FRU Number to Kit Number Cross Reference

FRU

Description

Single Channel 800 MHz BRC TLN3334 CLN1469

Single Channel BRC (MCI) TLN3425 CLN1472

Enhanced Base Radio Controller DLN6446 CLN1653

900 MHz QUAD Channel EX/CNTL DLN1203 CLF6242

800 MHz QUAD Channel EX/CNTL CLN1497 CLF1560

800/900 MHz QUAD+2 Channel XCVR DLN6654 PCUF1001

Number

Kit

Number

The Single Carrier Base Radio section covers the 800 MHz Legacy and 800 MHz Generation 2 versions of the Base Radio (BR). Information is presented generally for all models. Information that is model specific noted in the text.

For Generation 2 BR, both the 800 MHz Exciter and the 800 MHz Low Noise Exciter modules are supported subject to Table 1-5.

For QUAD Channel 800 MHz BR use, all Single Carrier BR modules have undergone redesign. Therefore, Single Carrier BR modules are incompatible with the QUAD Channel 800 MHz BR. QUAD Channel 800 MHz BR modules are incompatible with the Single Carrier BR.

Note Do not attempt to insert QUAD Channel 800 MHz BR modules into

a Single Carrier BR or Single Carrier BR modules into a QUAD Channel 800 MHz BR.

Note For QUAD Channel 900 MHz BR use, all Single Carrier BR modules

are incompatible with the 900 MHz QUAD Channel BR. 900 MHz QUAD Channel BR modules are incompatible with the Single Carrier BR.

Note Do not attempt to insert QUAD Channel 900 MHz BR modules into

a Single Carrier BR or Single Carrier BR modules into a QUAD Channel 900 MHz BR.

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Volume 2 Base Radio

QUAD Channel 900 MHz Base Radio Overview

QUAD Channel 900 MHz Base Radio Overview 1

The QUAD Channel 900 MHz BR provides reliable, digital BR capabilities in a compact, software-controlled design. Voice compression techniques, time division multiplexing (TDM) and multi-carrier operation provide increased channel capacity.

The QUAD Channel 900 MHz BR contains the four FRUs listed below:

■ QUAD Channel 900 MHz EX /Cntl

■ QUAD Channel 900 MHz Power Amplifier

■ QUAD Channel 800 MHz and 900 MHz Power Supply (DC)

■ QUAD Channel 900 MHz Receiver (qty. 4)

The modular design of the QUAD Channel 900 MHz BR also offers increased shielding and provides easy handling. All FRUs connect to the backplane through blindmate connectors.

Note Both the 800 MHz QUAD and 900 MHz QUAD Base Radios use the

same backplane and cardcage but call out different FCC ID numbers.

Figure 1-3 shows the front view of the BR.

Figure 1-3 QUAD Channel 900 MHz Base Radio (Typical)

QUAD CHANNEL POWER SUPPLY

TX4

EX/CNTLPAREF

RX1

TX4

RX2

RX3

RX4

RESET

STATUS

900 QUAD CHANNEL EX/CNTL 900 QUAD CHANNEL RECEIVER

900 QUAD CHANNEL RECEIVER

900 QUAD CHANNEL POWER AMPLIFIER

EBTS282Q_900 120501JNM

RX4

RX3

RX2

RX1

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Base Radio Volume 2

QUAD Channel 900 MHz Base Radio Overview

QUAD Channel 900 MHz Base Radio Controls and

Indicators

QUAD Channel 900 MHz Base Radio Performance

Specifications

Power Supply and EX / CNTL controls and indicators monitor BR status and operating conditions, and also aid in fault isolation. The Power Supply and EX / CNTL sections of this chapter discuss controls and indicators for both modules.

The Power Supply has two front panel indicators. The EX / CNTL has twelve front panel indicators. The Power Supply power switch applies power to the BR. The EX / CNTL RESET switch resets the BR.

QUAD Channel 900 MHz Base Radio General Specifications

Table 1-9 lists general specifications for the BR.

Table 1-9 QUAD Channel 900 MHz BR General Specifications

Specification Value or Range

Dimensions:

Height Width Depth Weight

5 EIA Rack Units (RU) 19" (482.6 mm)

16.75" (425 mm) 85 lbs. (38.6 kg)

Operating Temperature 32° to 104° F (0° to 40° C)

Storage Temperature -22° to 140° F (-30° to 60° C)

Rx Frequency Range:

900 MHz iDEN

Tx Frequency Range:

900 MHz iDEN 9

Tx – Rx Spacing:

900 MHz iDEN 39 MHz

Carrier Spacing 25 kHz

Carrier Capacity

Frequency Generation Synthesized

Digital Modulation QPSK, M-16QAM, and M-64QAM

Power Supply Inputs:

VDC -48 VDC (-41 to -60 VDC)

Diversity Branches Up to 3

901 - 902 MHz

40 - 941 MHz

1, 2, 3 or 4

Note * Multi-carrier operation must utilize adjacent, contiguous RF

carriers.

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Volume 2 Base Radio

QUAD Channel 900 MHz Base Radio Overview

QUAD Channel 900 MHz Base Radio Transmit Specifications

Table 1-10 lists the BR transmit specifications.

Table 1-10 QUAD Channel 900 MHz BR Transmit Specifications

Specification Value or Range

Low average

output power per

Average Power Output:

(900 MHZ) Single Carrier 5.0W 52.0W

(900 MHz) Dual Carrier 2.5W 26.0W

(900 MHz) Triple Carrier 1.7W 16.1W

(900 MHz) QUAD Carrier 1.3W 10.5W

Transmit Bit Error Rate (BER) 0.01%

Occupied Bandwidth 18.5 kHz

Frequency Stability

RF Input Impedance 50 Ω (nom.)

FCC Designation (FCC Rule Part 24):

900 MHz QUAD BR ABZ89FC5798

carrier

1.5 ppm

High average

output power per

carrier

-P

Note * Transmit frequency stability locks to an external site reference,

which controls ultimate frequency stability to a level of 50 ppb.

QUAD Channel 900 MHz Base Radio Receive Specifications

Table 1-11 lis t s the receive specifications.

Table 1-11 QUAD Channel 900 MHz Receive Specifications

Specification Value or Range

Static Sensitivity †:

900 MHz BR -108 dBm (BER = 8%)

BER Floor (BER = 0.01%) ≥ -80 dBm

IF Frequencies

1st IF (All bands): 2nd IF:

Frequency Stability * 1.5 ppm

73.35 MHz (1st IF) 450 kHz (2nd IF)

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Base Radio Volume 2

QUAD Channel 900 MHz Base Radio Overview

Table 1-11 QUAD Channel 900 MHz Receive Specifications

Specification Value or Range

RF Input Impedance 50 Ω (nom.)

FCC Designation (FCC Rule Part 15):

900 MHz BR ABZ89FR5799

Note † Measurement referenced from single receiver input port of BR. Note * Stability without site reference connected to station. Receive

frequency stability locks to an external site reference, which controls ultimate frequency stability to a level of 50 ppb.

QUAD Channel 900 MHz Base Radio

Theory of Operation

The QUAD Channel 900 MHz BR operates with other site controllers and equipment and must be properly terminated. The following description assumes such a configuration. Figure 1-10 show an overall block diagram of the QUAD Channel 900 MHz BR.

Power is applied to the DC Power inputs located on the QUAD Channel 900 MHz BR backplane. The DC Power input is connected if -48 VDC or batteries are used in the site.

Power is applied to the BR by setting the Power Supply power switch to the ON position. Upon power-up, the QUAD Channel 900 MHz BR performs self-diagnostic tests to ensure the integrity of the unit. These tests, which include memory and Ethernet verification routines, primarily examine the EX / CNTL.

After completing self-diagnostic tests, the QUAD Channel 900 MHz BR reports alarm conditions on any of its modules to the site controller via Ethernet. Alarm conditions may also be verified locally. Local verification involves using the service computer and the STA TUS port located on the front of the QUAD Channel 900 MHz EX / CNTL.

The software resident in FLASH on the EX / CNTL registers the BR with the site controller via Ethernet. After BR registration on initial power-up, the BR software downloads via resident FLASH or Ethernet and executes from RAM. The download includes operating parameters for the QUAD Channel 900 MHz BR. These parameters allow the QUAD Channel 900 MHz BR to perform call processing functions.

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Volume 2 Base Radio

QUAD Channel 900 MHz Base Radio Overview

After software downloads to the BR via Ethernet, FLASH memory stores the software object. Upon future power-ups, the software object in FLASH loads into RAM for execution.

The BR operates in a TDMA (Time Division Multiple Access) mode. This mode, combined with voice compression techniques, increases channel capacity by a ratio of as much as six to one. TDMA divides both the receive and transmit signals of the BR into six individual time slots. Each receive slot has a corresponding transmit slot. This pair of slots comprises a logical RF channel.

The BR uses diversity reception for increased coverage area and improved quality. The Receiver modules within the QUAD Channel 900 MHz BR contain three receiver paths. Two-branch diversity sites use two Receiver paths, and three-branch diversity sites use three Receiver paths.

All Receiver paths within a given Receiver module are programmed to the same receive frequency. Signals from each receiver arrive at the EX / CNTL module. This module performs a diversity combining algorithm on the signals. The resultant signal undergoes an error-correction process. Then, via Ethernet, the site controller acquires the signal, along with control information about signal destination.

Two separate FRUs comprise the transmit section of the QUAD Channel 900 MHz BR. These are the Exciter portion of the EX / CNTL and the Power Amplifier (PA). The Exciter processes commands from the CNTL, assuring transmission in the proper modulation format. Then the low-level signal enters the PA. The PA amplifies this signal to the desired output power level. The PA is a continuously keyed linear amplifier. A power control routine monitors the output power of the BR. The routine adjusts the power as necessary to maintain the proper output level.

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Volume 2 Base Radio

Figure 1-10 800 and 900 MHZ QUAD Channel Base Radio Functional Block Diagram

ABACUS

RECEIVER

RX INTERFACE,

ADDRESS DECODE.

MEMORY, DIAGNOSTICS

ABACUS

RECEIVER

ABACUS

RECEIVER

Host SPI

EXCITER-BASE RADIO CONTROLLER

STATUS

PORT

RS-232

ETHERNET

5 MHZ

EXTERNAL

REFERENCE

HOST

u’P

ETHERNET

INTERFACE

PLL/VCOs

BASE RADIO CONTROLLER

DC POWER SUPPLY MODULE

EXTERNAL DC INPUT 41 - 60 VDC

NPUT FILTER

START-UP

INVERTER

CIRCUITRY

IF FILTER

AMP, AGC

IF FILTER

AMP, AGC

VCO SYNTH

SPLITTER

IF FILTER

AMP, AGC

Host SPI

ADDRESS DECODE,

MEMORY, ADC

133 KHZ

RX4 DATA

SDRAM

BUFFERS

IO LATCHES

EEPROM

16.8MHz

48MHz

Exciter

CLOCK

GENERATOR

MIXER

FLASH

267 KHZ

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

16.8MHz

LINEAR RF AMPLIFIER

Main Converter

133 KHZ

RECEIVER 4

RECEIVE

DSP

TISIC

TRANSMIT

ODCT

RF IN

RECEIVER 4

PREAMPLIFIER

SPLITTER

/ BYPASS

RX3 DATA

1PPS & SLOT TIMING

DSP

I Q

RF FEEDBACK

14.2 V

CONVERTER

Rx1&2

Rx3&4

RX SPI

TX RECLOCK

Tx_I Tx_Q

DAC

3.3 V

CONVERTER

RX2 DATA

RX1 DATA

RECEIVE

DSP

2.4MHz

VCOs/Synths

RF IN

FROM RFDS (BRANCH 3)

QUAD RX IN DISTRIBUTION

SPI BUS

RF IN

FROM RFDS (BRANCH 2)

SPI BUS

RF IN

FROM RFDS (BRANCH 1)

+28 VDC TO BACKPLANE

+14.2 VDC TO BACKPLANE

+3.3 VDC TO BACKPLANE

RECEIVER 3

RECEIVER 2

SPI BUS

PREAMPLIFIER

SPLITTER

/ BYPAS S

PREAMPLIFIER

SPLITTER

/ BYPASS

RECEIVER 1

PREAMPLIFIER

SPLITTER

/ BYPASS

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

LPF, AMP,

FILTER

ADDRESS DECODE,

MEMORY, ADC

LINEAR DRIVER

MIXER

SPLITTER

IF FILTER

AMP, AGC

IF FILTER

AMP, AGC

VCO SYNTH

SPLITTER

IF FILTER

AMP, AGC

IF FILTER

AMP, AGC

IF FILTER

AMP, AGC

VCO SYNTH

SPLITTER

IF FILTER

AMP, AGC

ABACUS

RECEIVER

ABACUS

RECEIVER

ABACUS

RECEIVER

ABACUS

RECEIVER

ABACUS

RECEIVER

ABACUS

RECEIVER

16.8MHz

IF FILTER

AMP, AGC

IF FILTER

AMP, AGC

VCO SYNTH

SPLITTER

IF FILTER

AMP, AGC

ABACUS

RECEIVER

ABACUS

RECEIVER

ABACUS

RECEIVER

POWER AMPLIFIER MODULE

COMBINER

FINAL

LINEAR

AMPS

RX INTERFACE,

ADDRESS DECODE.

MEMORY, DIAGNOSTICS

RX INTERFACE,

ADDRESS DECODE.

MEMORY, DIAGNOSTICS

RX INTERFACE,

ADDRESS DECODE.

MEMORY, DIAGNOSTICS

RF OUT

TO RFDS

(TX ANTENNA)

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Base Radio Controllers Volume 2

Overview

Overview 2

This chapter provides information on Base Radio Controllers (BRCs).

FRU Number to Kit Number Cross Reference

Base Radio Controller (BRC) Field Replaceable Units (FRUs) are available for the iDEN EBTS. The FRU contains the BRC kit and required packaging. Table 2-1 provides a cross reference between BRC FRU numbers and kit numbers.

Table 2-1 FRU Number to Kit Number Cross Reference

FRU

Description

Single Channel 800 MHz Base Radio Controller TLN3334 CLN1469

Enhanced Base Radio Controller DLN6446 CLN1653

QUAD Channel 900 MHz Exciter/BR Controller DLN1203 CLF1792

QUAD Channel 800 MHz Exciter/BR Controller CLN1497 CLF1560

Number

Kit

Number

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Base Radio Controllers Volume 2

900 MHz QUAD Channel Base Radio Controller

900 MHz QUAD Channel Base Radio Controller 2

900 MHz QUAD Channel Base Radio Controller Overview

Figure 2-6 900 MHz QUAD Channel Base Radio Controller, version DLN1203 (with cover

removed)

The Base Radio Controller (BRC) provides signal processing and operational control for Base Radio modules. The BRC module consists of a printed circuit board, a slide-in housing, and associated hardware.

The BRC memory contains the operating software and codeplug. The software defines BR operating parameters, such as output power and operating frequency.

The BRC connects to the Base Radio backplane with one 168-pin FutureBus+ connector and one blindmate RF connector. Two Torx screws secure the BRC in the Base Radio chassis.

Figure 2-6 shows a top view of the EX/CNTL (model CLF1560) with the cover removed.

900 MHz QUAD Channel Base Radio Controller Controls

and Indicators

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2-28 68P80801E35-E 16-June-06

The BRC monitors the functions of other Base Radio modules. The LEDs on the front panel indicate the status of BRC-monitored modules. All LEDs on the BRC front panel normally flash three times upon initial power-up. A RESET switch allows a manual reset of the Base Radio. Figure 2-7 shows the front panel of the BRC.

Volume 2 Base Radio Controllers

900 MHz QUAD Channel Base Radio Controller

Figure 2-7 900 MHz QUAD Channel BR Controller (Front View)

EX/CNTLPAREF

RX1

RX2

RX3

RX4

TX4

RESET

STATUS

QUAD CHANNEL EX/CNTL

EBTS316Q 013001JNM

TX4

Indicators

Table 2-12 lists and describes the BRC LEDs.

Table 2-12 900 MHz QUAD Channel BR Controller Indicators

Module

LED Color

PS Red Power Supply

EXBRC Red

PA Red

Monitored

Controller/ Exciter

Power Amplifier

Condition Indications

Solid (on)

Flashing (on)

Off Power Supply is operating normally (no alarms)

Solid (on)

Flashing (on)

Off Controller/Exciter is operating normally (no alarms)

Solid (on)

Flashing (on)

FRU failure indication - Power Supply has a major alarm, and is out of service

Power Supply has a minor alarm, and may be operating at reduced performance

FRU failure indication - Controller/Exciter has a major alarm, and is out of service (Note: Upon power-up of the BR, this LED indicates a failed mode until BR software achieves a known state of operation.)

Controller/Exciter has a minor alarm, and may be operating at reduced performance

FRU failure indication - PA has a major alarm, and is out of service

PA has a minor alarm, and may be operating at reduced performance

Off PA is operating normally (no alarms)

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Base Radio Controllers Volume 2

900 MHz QUAD Channel Base Radio Controller

Table 2-12 900 MHz QUAD Channel BR Controller Indicators (continued)

Module

LED Color

Monitored

Condition Indications

Controller

REF Red

RX1 RX2 RX3 RX4

TX1 Green BR

TX2 Green BR

Red

Station Reference

Receiver #1, #2, #3, or #4

Solid (on)

Flashing (on)

Off BRC is operating normally (no alarms)

Solid (on)

Flashing (on)

Off

Solid (on) Station Transmit Carrier #1 is keyed

Flashing (on)

Off Station is out of service, or power is removed

Solid (on) Station Transmit Carrier #2 is keyed

Flashing (on)

FRU failure indication - Controller Station Reference has a major alarm, and is out of service

BRC has a minor alarm, and may be operating in a marginal region

FRU failure indication - Receiver (#1, #2, #3 or #4) has a major alarm, and is out of service

Receiver (#1, #2, #3 or #4) has a minor alarm, and may be operating at reduced performance

Receiver (#1, #2, #3 or #4) is operating normally (no alarms)

Station Transmit Carrier #1 is not keyed

Station Transmit Carrier #2 is not keyed

TX3 Green BR

TX4 Green BR

Off Station is out of service, or power is removed

Solid (on) Station Transmit Carrier #3 is keyed

Flashing (on)

Off Station is out of service, or power is removed

Solid (on) Station Transmit Carrier #4 is keyed

Flashing (on)

Off

Station Transmit Carrier #3 is not keyed

Station Transmit Carrier #4 is not keyed

Station is out of service, or power is removed

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Volume 2 Base Radio Controllers

900 MHz QUAD Channel Base Radio Controller

Controls

Table 2-13 lists the controls and descriptions.

Table 2-13 900 MHz QUAD Channel BR Controller Controls

Control Description

RESET Switch

STATUS connector

A push-button switch used to manually reset the BR.

A 9-pin connector used for connection of a service computer, providing a convenient means for testing and configuring.

STATUS Connector

Table 2-14 the pin-outs for the STATUS connector.

Table 2-14 Pin-outs for the STATUS Connector

Pin-out Signal

1 not used

2TXD

3RXD

4 not used

5GND

6 not used

7 not used

8 not used

9 not used

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E 2-31

Base Radio Controllers Volume 2

900 MHz QUAD Channel Base Radio Controller

900 MHz QUAD Channel Base Radio Controller Theory of

Operation

Table 2-15 briefly describes the BRC circuitry. Figure 2-14 is a functional block diagram of the BRC.

Table 2-15 900 MHz QUAD Channel BR Controller Circuitry

Circuit Description

Host Microprocessor

Non-Volatile Memory

Volatile Memory

Ethernet Interface

RS-232 Interface

Digital Signal Processors

Contains integrated circuits that comprise the central controller of the BRC and station

Consists of: FLASH containing the station operating software EEPROM containing the station codeplug data

Contains SDRAM to store station software used to execute commands.

Provides the BRC with a 10Base2 Ethernet communication port to network both control and compressed voice data

Provides the BRC with an RS-232 serial interface

Performs high-speed modulation/demodulation of compressed audio and signaling data

TISIC

TX Reclock

RX DSP SPI

Station Reference Circuitry

Input Ports

Output Ports

Remote Station Shutdown

Contains integrated circuits that provide timing reference signals for the station

Contains integrated circuits that provide highly stable, reclocked transmit signals and peripheral transmit logic

Contains integrated circuits that provide DSP SPI capability and peripheral receive logic

Generates the 16.8 MHz and 48 MHz reference signals used throughout the station

Contains 16 signal input ports that receive miscellaneous inputs from the BR

Contains 40 signal output ports, providing a path for sending miscellaneous control signals to circuits throughout the BR

Provides software control to cycle power on the BR

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Volume 2 Base Radio Controllers

900 MHz QUAD Channel Base Radio Controller

Host Microprocessor

The host microprocessor is the main controller for the BR. The processor operates at a 50-MHz clock speed. The processor controls Base Radio operation according to station software in memory. S tation software resides in FLASH memory. For normal operation, the system transfers this software to non-volatile memory. An EEPROM contains the station codeplug.

Note At BR power-up, the EXBRC LED indicates a major alarm. This

indication continues until BR software achieves a predetermined state of operation. Afterward, the software turns off the EXBRC LED.

Serial Communication Buses

The microprocessor provides a general-purpose SMC serial management controller bus.

The SMC serial communications bus is an asynchronous RS-232 interface with no hardware handshake capability. The BRC front panel includes a ninepin, D-type connector . This connector provides a port where service personnel may connect a service computer. Service personnel can perform prog ramming and maintenance tasks via Man-Machine Interface (MMI) commands. The interface between the SMC port and the front- panel ST ATUS connector is via EIA-232 Bus Receivers and Drivers.

Host Processor

The microprocessor incorporates 4k bytes of instruction cache and 4k bytes of data cache that significantly enhance processor performance.

The microprocessor has a 32-line address bus. The processor uses this bus to access non-volatile memory and SDRAM memory . V ia memory mapping, the processor also uses this bus to control other BRC circuitry.

The microprocessor uses its Chip Select capability to decode addresses and assert an output signal. The eight chip-select signals select non-volatile memory, SDRAM memory, input ports, output ports, and DSPs.

The Host processor...

■ Provides serial communications between the Host Microprocessor and

other Base Radio modules.

■ Provides condition signals necessary to access SDRAM.

■ Accepts interrupt signals from BRC circuits (such as DSPs).

■ Organizes the interrupts, based on hardware-defined priority ranking.

■ The Host supports several internal interrupts from its Communications

Processor Module. These interrupts allow efficient use of peripheral interfaces.

■ The Host supports 10 Mbps Ethernet/IEEE 802.3.

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Base Radio Controllers Volume 2

900 MHz QUAD Channel Base Radio Controller

■ Provides a 32-line data bus transfers data to and from BRC SDRAM and

other BRC circuitry. Buffers on this data bus allow transfers to and from non-volatile memory, general input and output ports and DSPs.

Non-Volatile Memory

Base Radio software resides in 2M x 32 bits of FLASH memory. The Host Microprocessor addresses the FLASH memory with 20 of the host address bus’ 32 lines. The host accesses FLASH data over the 32-line host data bus. A host-operated chip-select line provides control signals for these transactions.

The FLASH contains the operating system and application code. The system stores application code in FLASH for fast recovery from reset conditions. Application code transfers from network or site controllers may occur in a background mode. Background mode transfers allow the station to remain operational during new code upgrades.

The data that determines the station personality resides in a 32K x eight bit codeplug EEPROM. The microprocessor addresses the EEPROM with 15 of the host address bus’ 32 lines. The host accesses EEPROM data with eight of the data bus’ 32 lines. A host-operated chip-select line provides control signals for these transactions.

During the manufacturing process, the factory programs the codeplug’s default data. The BRC must download field programming data from network and site controllers. This data includes operating frequencies and output power level. The station permits adjustment of many station parameters, but the station does not store these adjustments. Refer to the Software Commands chapter for additional information.

Volatile Memory

Each BRC contains 8MB x 32 bits of SDRAM. The BRC downloads station software code into SDRAM for station use. SDRAM also provides short-term storage for data generated and required during normal operation. SDRAM is volatile memory. A loss of power or system reset destroys SDRAM data.

The system performs read and write operations over the Host Address and Data buses. These operations involve column and row select lines under control of the Host processor’s DRAM controller. The Host address bus and column row signals sequentially refresh SDRAM memory locations.

Ethernet Interface

The Host processor’s Communications Processor Module (CPM) provides the Local Area Network (LAN) Controller for the Ethernet Interface. The LAN function implements the CSMA/CD access method, which supports the IEEE

802.3 10Base2 standard.

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2-34 68P80801E35-E 16-June-06

Volume 2 Base Radio Controllers

900 MHz QUAD Channel Base Radio Controller

The LAN coprocessor supports all IEEE 802.3 Medium Access Control, including the following:

■ framing

■ preamble generation

■ stripping

■ source address generation

■ destination address checking

The PCM LAN receives commands from the CPU.

The Ethernet Serial Interface works directly with the CPM LAN to perform the following major functions:

■ 10 MHz transmit clock generation (obtained by dividing the 20 MHz signal

provided by on-board crystal)

■ Manchester encoding/decoding of frames

■ electrical interface to the Ethernet transceiver

An isolation transformer provides high-voltage protection. The transformer also isolates the Ethernet Serial Interface (ESI) and the transceiver. The pulse transformer has the following characteristics:

■ Minimum inductance of 75 µH

■ 2000 V isolation between primary and secondary windings

■ 1:1 Pulse Transformer

The Coaxial Transceiver Interface (CTI) is a coaxial cable line driver and receiver for the Ethernet. CTI provides a 10Base2 connection via a coaxial connector on the board. This device minimizes the number of external components necessary for Ethernet operations.

A DC/DC converter provides a constant voltage of -9 Vdc for the CTI from a

3.3 Vdc source.

The CTI performs the following functions:

■ Receives and transmits data to the Ethernet coaxial connection

■ Reports any collision that it detects on the coaxial connection

■ Disables the transmitter when packets are longer than the legal length

(Jabber Timer)

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E 2-35

Base Radio Controllers Volume 2

900 MHz QUAD Channel Base Radio Controller

Digital Signal Processors

The BRC includes two Receive Digital Signal Processors (RXDSPs) and a Transmit Digital Signal Processor (TXDSP). These DSPs and related circuitry process compressed station transmit and receive audio or data. The related circuitry includes the TDMA Infrastructure Support IC (TISIC) and the TISIC Interface Circuitry. The DSPs only accept input and output signals in digitized form.

The RXDSP inputs are digitized receiver signals. The TXDSP outputs are digitized voice audio and data (modulation signals). These signals pass from the DSP to the Exciter portion of the EXBRC. DSPs communicate with the Microprocessor via an eight-bit, host data bus on the host processor side. For all DSPs, interrupts drive communication with the host.

The RXDSPs operate from an external 16.8 MHz clock, provided by the local station reference. The RXDSP internal operating clock signal is 150MHz, produced by an internal Phase-Locked Loop (PLL).

The RXDSPs accept digitized signals from the receivers through Enhanced Synchronous Serial Interface (ESSI) ports. Each of two ESSI ports on a RXDSP supports a single carrier (single receiver) digital data input. The DSP circuitry includes two RXDSPs. These allow processing of up to four carriers (four receivers).

The RXDSP accesses its DSP program and signal-processing algorithms in 128k words of internal memory. The RXDSPs communicate with the host bus over an 8-bit interface.

Each RXDSP provides serial communications to its respective receiver module for receiver control via a Serial Peripheral Interface (SPI). The SPI is a parallel-to-serial conversion circuit, connected to the RXDSP data bus. Each RXDSP communicates to two receive modules through this interface.

Additionally , a serial control path conn ects the two RXDSPs and the TXDSP. The Synchronous Communications Interface (SCI) port facilitates this serial control path.

For initialization and control purposes, one RXDSP connects to the TISIC device.

The TXDSP operates at an external clock speed of 16.8 MHz, provided by the EXBRC local station reference. The TXDSP internal operating clock is 150MHz, produced by an internal Phase Lock Loop (PLL).

The TXDSP sends up to four carriers of digitized signal to the EX11 exciter. The exciter converts the digital signal to analog. Also at the exciter, a highly stable clock reclocks the digital data. Reclocking enhances transmit signal integrity. Two framed and synchronized data streams result. One data stream is I-data, and the other is the Q-data stream.

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Volume 2 Base Radio Controllers

900 MHz QUAD Channel Base Radio Controller

The TXDSP contains its own, internal address and data memory. The TXDSP can store 128k words of DSP program and data memory. An eight-bit interface handles TXDSP-to-host bus communications.

TISIC

The TISIC controls internal DSP operations. This circuit provides the following functions:

■ For initialization and control, interfaces with one RXDSP via the DSP

address and data buses.

■ Accepts a 16.8 MHz signal from Station Reference Circuitry.

■ Accepts a 5 MHz signal, modulated with one pulse per second (1 PPS) from

the site reference.

■ Demodulates the 1 PPS

■ Outputs a 1 PPS signal and a windowed version of this signal for network

timing alignment.

■ Outputs a 2.4 MHz reference signal used by the Exciter.

■ Generates 15 ms and 7.5 ms ticks. (These ticks synchronize to the 1 PPS

time mark. The system decodes the time mark from the site reference. Then the system routes the reference to the TXDSP and RXDSPs.)

Station Reference Circuitry

The Station Reference Circuitry is a phase-locked loop (PLL). This PLL consists of a high-stability, Voltage-Controlled, Crystal Oscillator (VCXO) and a PLL IC. GPS output from the iSC connects to the 5 MHz/1 PPS BNC connector on the BR backplane. Wiring at this connector routes signals to EXBRC station reference circuitry.

The PLL compares the 5 MHz reference frequency to the 16.8 MHz VCXO output. Then the PLL generates a DC correction voltage. The PLL applies this correction voltage to the VCO through an analog gate. The analog gate closes when three conditions coexist: (1) The 5 MHz tests stable. (2) The PLL IC is programmed. (3) Two PLL oscillator and reference signal output alignments occur.

When the gate enables, the control voltage from the PLL can adjust the highstability VCXO frequency. The adjustment can achieve a stability nearly equivalent to that of the external, 5 MHz frequency reference.

The correction voltage from the PLL continuously adjusts the VXCO frequency. The VXCO outputs a 16.8 MHz clock signal. The circuit applies this clock signal to the receiver, 48 MHz reference and TISIC.

The receivers use the 16.8MHz as the clock input and synthesizer reference.

Enhanced Base Transceiver System (EBTS)

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Base Radio Controllers Volume 2

900 MHz QUAD Channel Base Radio Controller

The 48 MHz EXBRC synthesizer uses the 16.8 MHz as its synthesizer reference. The 48 MHz synthesizer output is the clock input for the TXDSP I and Q data reclock circuitry.

The TISIC divides the 16.8 MHz signal by seven, and outputs a 2.4 MHz signal. This output signal then becomes the 2.4 MHz reference for the Exciter.

Input Ports

One general-purpose input register provides for BRC and station circuit input signals. The register has 16 input ports. The Host Data Bus conveys input register data to the Host Microprocessor. Typical inputs include 16.8 and 48 MHz Station Reference Circuitry status outputs and reset status outputs.

Output Ports

Two general-purpose output registers distribute control signals from the Host Microprocessor to the BRC and station circuitry. One register has 32 output ports and the other register has 8 output ports. Control signal distribution occurs over the backplane. The Host Data Bus drives the output ports’ latched outputs. Typical control signals include front-panel LED signals and SPI peripheral enable and address lines.

Remote Station Shutdown

The BRC contains power supply shutdown circuitry. This circuitry can send a shutdown pulse to the Base Radio Power Supply. BRC software generates the shutdown control pulse.

After receiving a shutdown pulse, the power supply turns off BR power. Shut down power sources include 3.3, 28.6 and 14.2 Vdc sources throughout the BR. Due to charges retained by BR storage elements, power supply voltages may not reach zero. The shutdown only assures that the host processor enters a power-on-reset state.

A remote site uses the shutdown function to perform a hard reset of all BR modules.

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Volume 2 Base Radio Controllers

Figure 2-14 800 and 900 MHz QUAD Channel Base Radio Controller Functional Block Diagram (Sheet 1 of 2)

LED CONTROL LINES

HOST LATCH P0 OUT

POWER

SUPPLY

EXCITER/ CONTROL

PA REF RX1 RX2 RX3 RX4 TX1 TX2 TX3 TX4

3.3V

P0_OUT

SHUTDOWN CIRCUITRY

SHUTDOWN (TO POWER SUPPLY)

FRONT PANEL LEDS

5MHZ_1PPS BASE RADIO INPUT

5MHZ 1PPS

G A T I

SYNTHESIZER IC / CIRCUITRY

N G

SPI BUS

STATION REFERENCE CIRCUITRY

DISCONNECT/ CONNECT CONTROL

PHASE DETECTION/ FILTERING/ CONTROL

STEARING LINE

HIGH STA BILITY VCXO

16.8 MHZ

REMOTE STATION SHUTDOWN CIRCUITRY

SYNTHESIZER

16.8MHZ

IC / CIRCUITRY

SPI BUS

TRANSMIT REFERENCE CIRCUITRY

PHASE DETECTION/ FILTERING

STEARING LINE

HIGH STA BILITY VCXO

48 MHZ

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E 2-55

Base Radio Controllers Volume 2

Figure 2-15 800 and 900 MHz QUAD Channel Base Radio Controller Functional Block Diagram (Sheet 2 of 2)

RECEIVE DIGITAL SIGNAL PROCESSOR (RX DSP 2)

D[16:23]

PA RA LLEL TO SERIAL CIRCUITRY

SPI BUS TO RECEIVER 3 & 4

SPI BUS TO RECEIVER 1 & 2

SERIAL MANAGEMENT CONTROLLER (SMC2)

EIA-232 BUS RECEIVERS/ DRIVERS

STATUS PORT (9 PIN D CONNECTOR ON BRC FRONT PANEL)

RX1 SERIAL DATA

RX2 SERIAL DATA

DIFFERENTIAL TO SINGLE END

HOST

MICRO-

PROCESSOR

SCC1 ETHERNET SERIAL INTERFACE

ETHERNET

SERIAL

CS2

CS3

INTERF AC E

SERIAL PERIPHERAL INTERFACE

HOST ADDRESS BUS

GPLA0, A[8,9,17,18,20:29],RAS,CAS,WE

SDRAM 4M x 16

D[0:31]

CS4

HOST BUFFERED ADDRESS BUS

CS0 CS1

MA[2:21]

FLASH 1M x 16

D[0:15]

D[16:31]

HOST DATA BUS

MD[0:15]

ETHERNET INTERF ACE

CLSN

RCV RX

ISOLATION

TRANSFORMER

TRMT TX

BUFFER

DRAM MEMORY

SDRAM

D[0:15]

4M x 16

SDRAM 4M x 16

D[16:31]

MA[2:21]

FLASH

MD[0:15]

1M x 16

TRANSCEIVER

A[0:7]

D[0:31]

D[0:7]

MA[0:14]

SPI BUS

A[10:31]

EXTENDED HOST

BUS BUFFERS

BUFFER

RX3 SERIAL DATA

10BASE2 COAX

SPI BUS TO/FROM STATION MODULES

RX4 SERIAL DATA

MA[21:0]

P0_IN BUFFER

DSP_A[31:24]

MD[31:0]

DSP_D[31:24]

DIFFERENTIAL TO SINGLE END

DIGITAL SIGNAL PROCESSING

CIRCUITRY

HOST-DSP BUFFERED ADDRESS BUS

HOST-DSP BUFFERED DATA BUS

HOST BUFFERED DATA BUS

MD[0:32]

P0_OUT LATCH

RECEIVE DIGITAL SIGNAL PROCESSOR (RX DSP 1)

NETWORKED

SCI

TRANSMIT DIGITAL SIGNAL PROCESSOR (TX DSP)

DIGITAL SIGNAL PROCESSING

CIRCUITRY

D[0, 23]

D[0, 8:23]

A[0:5]

1 PPS TIMING, CONTROL/ SLOT TIMING/RESET

5MHZ

FRONT PANEL

RESET

1PPS

TRANSMIT CLOCK AND FRAME SYNCH CIRCUITRY

I/Q DATA

DSP SPI

EXCITER

SPI BUS

SPI CONTROL

TISIC

48 MHZ

SINGLE END TO DIFFERENTIAL

16.8MHZ

2.4 MHz TO EXCITER

SERIAL DATA TO EXCITER

SPI BUS TO EXCITER

FLASH 1M x 16

MD[16:31]

EEPROM 32k x 8

MD[24:31]

MD[16,17,20-24,28-31]

EXPANDED STATUS INPUT

AND OUTPUT CONTROL CIRCUITRY

MD[24:31]

P1_OUT LATCH

P0_OUT/P1_OUT CONTROL BUS

TO STATION MODULES

50 MHZ CLOCK

P0_IN

STATUS BUS

STATION MODULES

FROM

FLASH 1M x 16

MD[16:31]

NON-VOLATILE MEMORY

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Base Radio Exciter Volume 2

Overview

Overview 4

This chapter provides technical information for the Exciter (EX).

FRU Number to Kit Number Cross Reference

Exciter Field Replaceable Units (FRUs) are available for the iDEN EBTS. The FRU contains the Exciter kit and required packaging. Table 4-1 provides a cross reference between Exciter FRU numbers and kit numbers.

Table 4-1 FRU Number to Kit Number Cross Reference

FRU

Description

Single Channel Exciter (800 MHz) TLN3337 CLF1490

QUAD Channel 900 MHz Exciter/Base Radio Controller)

QUAD Channel 800 MHz Exciter/Base Radio Controller

LNODCT (Low Noise Offset Direct Conversion Transmit) Exciter (800 MHz)

Number

CLN1497 CLF6452

CLN1497 CLF1560

TLN3337 CLF1789

Kit

Number

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Base Radio Exciter Volume 2

QUAD Channel 900 MHz Exciter

QUAD Channel 900 MHz Exciter 4

QUAD Channel 900 MHz Exciter Overview

Figure 4-3 900 MHz QUAD Channel Exciter (with cover removed)

The Exciter and the Power Amplifier (PA) provide the transmitter functions of the QUAD Channel 900 MHz Base Radio. The Exciter module consists of a printed circuit board, a slide in housing, and associated hardware. The BRC shares the printed circuit board and housing.

The Exciter connects to the Base Radio backplane through a 168-pin connector and two blindmate RF connectors. Controller and exciter circuitry also interconnect on the Exciter/Controller module. T w o Torx screws on the front of the Exciter secure it to the chassis.

An LED identifies the Exciter’s operational condition, as described in the manual’s Controller section. The Base Radio section of the manual provides specifications for transmitter circuitry. This information includes data on the Exciter and PAs.

Figures 4-4 shows the Exciter with the cover removed.

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Volume 2 Base Radio Exciter

QUAD Channel 900 MHz Exciter

900 MHz QUAD Channel Exciter

Theory of Operation

Table 4-4 describes the basic circuitry of the Exciter. Figure 4-7 show the QUAD Carrier Exciter’s functional block diagram.

Table 4-4 900 MHz Exciter Circuitry

Circuit Description

Up-converts baseband data to the transmit frequency Down-converts the PA feedback signal to baseband

LNODCT IC

Memory & A/D Converter

Frequency Synthesizer Circuitry

Uses a baseband Cartesian feedback loop system, necessary to obtain linearity from the transmitter and avoid splattering power into adjacent channels Performs training functions for proper linearization of the transmitter

Serves as the main interface between the synthesizer, Tranlin IC, A/D, and EEPROM on the Exciter, and the BRC via the SPI bus

Consists of a phase-locked loop and VCO Provides a LO signal to the LNODCT IC for the second up-conversion and first downconversion of the feedback signal from the PA

1025 MHz VCO (900 MHz BR)

90.3 MHz VCO (900 MHz BR)

Regulator Circuitry

Linear RF amplifier Stages

Provides a LO signal to the LNODCT IC, for upconversion to the transmit frequency

Provides a LO signal to LNODCT IC, for the upconversion and for the down-conversion of the feedback signal. The mixed output becomes the LO signal for Transmit signal up- and down- conversion

Provides a regulated voltage to various ICs and RF devices located on the Exciter

Amplifies the RF signal from the Exciter IC to an appropriate level for input to the PA

Enhanced Base Transceiver System (EBTS)

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Base Radio Exciter Volume 2

QUAD Channel 900 MHz Exciter

Memory Circuitry

The memory circuitry is an EEPROM on the Controller portion of the Exciter/ Controller module. The Controller performs memory read and write operations over the parallel bus. The memory device stores the following data...

■ kit number

■ revision number

■ module specific scaling and correction factors

■ serial number

■ free form information (scratch pad)

A/D Converter Circuitry

Analog signals from various areas throughout the Exciter board enter the A/D converter (A/DC). The A/DC converts these analog signals to digital form. Upon request of the BRC, A/DC output signals enter the BRC via SPI lines. The Controller periodically monitors all signals.

Some of the monitored signals include amplifier bias and synthesizer signals.

Low Noise Offset Direct Conversion Transmit (LNODCT) IC Circuitry

The Low Noise IC is a main interface between the Exciter and BRC. The BRC’s Digital Signal Processor (DSP) sends digitized signals (baseband data) to the Exciter over the DSP data bus.

The differential data clock signal serves as a 2.4 MHz reference signal to the Low Noise IC’s internal synthesizer. The Low Noise IC compares the reference signal with the outputs of Voltage Controlled Oscillators (VCOs). The Low Noise IC might sense that a VCO’s output is out of phase or offfrequency. If so, then the Low Noise IC sends correction pulses to the VCO. The pulses adjust VCO output, thereby matching phase and frequency with the reference.

The Low Noise IC up-converts baseband data from the BRC to the transmit frequency. The Low Noise IC also down-converts the Transmit signal from the Power Amplifier to baseband data for cartesian feedback linearization.

The BRC uses the Serial Peripheral Interface (SPI) bus to communicate with the Low Noise IC. The SPI bus serves as a general purpose, bi-directional, serial link between the BRC and other Base Radio modules, including the Exciter. The SPI carries control and operational data signals to and from Exciter circuits.

Enhanced Base Transceiver System (EBTS)

4-14 68P80801E35-E 16-June-06

Volume 2 Base Radio Exciter

QUAD Channel 900 MHz Exciter

Synthesizer Circuitry

The synthesizer circuit consists of the Phase-Locked Loop (PLL) IC and associated circuitry. This circuit’s controls the 1025 MHz VCO signal. An internal phase detector generates a logic pulse. This pulse is proportional to the phase or frequency difference between the reference frequency and loop pulse signal.

The charge pump circuit generates a correction signal. The correction signal moves up or down in response to phase detector output pulses. The correction signal passes through the low-pass loop filter. The signal then enters the 1025 MHz Voltage Controlled Oscillator (VCO) circuit.

1025 MHz Voltage Controlled Oscillator (VCO)

For proper operation, the VCO requires a very low-noise, DC supply voltage. An ultra low-pass filter prepares the necessary low-noise voltage and drives the oscillator.

A portion of the oscillator output signal enters the synthesizer circuitry. The circuitry uses this feedback signal to generate correction pulses.

The 1025MHz VCO output mixes with the 90.3 MHz VCO output. Th e result is a Local Oscillator [LO) signal for the Low Noise IC. The LNODCT uses this LO signal to up-convert the programmed transmit frequency. The Low Noise IC also uses the LO signal to down-convert the PA feed back signal.

90.3 MHz Voltage Controlled Oscillator (VCO)

The synthesizer within the Low Noise IC sets the 90.3 MHz signal. The 90.3 MHz VCO provides a LO signal to the LNODCT IC. The Low Noise IC uses this signal in up-converting and down-converting the feedback signal.

Regulator Circuitry

The voltage regulators generate three regulated voltages: +3 Vd c, +5 Vdc a nd +11.7 Vdc. The regulators obtain input voltages from the +3.3 Vdc and +14.2 Vdc backplane voltages. The regulated voltages power various ICs and RF devices in the Exciter.

Linear RF Amplifier Stages

The linear RF amplifiers boost the RF signal from the Low Noise IC. The RF Amplifier generates an appropriate signal level to drive the PA.

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16-June-06 68P80801E35-E 4-15

Volume 2 Base Radio Exciter

Figure 4-7 800 and 900 MHz Exciter Board Functional Block Diagram

RF FEEDBACK

FROM PAMODULE

DIFFERENTIAL

DATA & CLOCK

FROM

BRC MODULE

ADDRESS BUS

FROM CONTROL

MODULE

SPI BUS

TO/FROM CONTROL

MODULE

LNODCT IC CIRCUITRY

TX DATA & CLOCK

90.3

VCO

CIRCUITRY

OSCILLATOR

BUFFER

AMP

ADDRESS DECODE, MEMORY, & A/D

CONVERTER CIRCUITRY

VARIOUS SIGNALS

TO MONITOR

DAC

MEMORY

A/D

CONVERTER

EXCITER IC CIRCUITRY

REGULATOR

CIRCUITRY

+14.2 V

FROM

BACKPLANE

+11.7 V

REGULATOR

LNODCT IC

LO INJECTION CIRCUITRY

+3.3 V

+3 V

REGULATOR

(U3702)

+5 V

REGULATOR

+3 V

SOURCE

+11.7 V

SOURCE

+5 V

SOURCE

970 MHZ

VCO CIRCUITRY

BUFFER

SYNTHESIZER

CIRCUITRY

2.4 MHZ

BUFFER

AMP

RIN

FIN

CHIP

SELECT

PHASE

LOCKED

LOOP

OSCILLATOR

FEEDBACK

+10 V

FILTER

CONTROL VOLTAGE

VCO FEEDBACK

SPI BUS (CLOCK & DATA)

FROM BACKPLANE

CHARGE

PUMP

VCO

LOW-PASS

LOOP

FILTER

LINEAR RF AMPLIFIER

CIRCUITRY

RF OUTPUT

TO PAMODULE

NOTE: Where two frequencies are given, frequency without parentheses applies to 800 MHz BR only and frequency with parentheses applies to 900 MHz BR only.

BPF

EBTS283Q 080601JNM

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E 4-23

Power Amplifier Volume 2

Overview

Overview 5

This section provides technical information for the Power Amplifier (PA).

FRU Number to Kit Number Cross Reference

Power Amplifier (PA) Field Replaceable Units (FRUs) are available for the iDEN EBTS. The FRU contains the PA kit and required packaging. Table 5- 1 provides a cross reference between PA FRU numbers and kit numbers.

Table 5-1 FRU Number to Kit Number Cross Reference

FRU

Description

40 W- 800 MHz Single Channel Base Radio PA TLF2020 CLF1772

70 W- 800 MHz Single Channel Base Radio PA TLN3335 CLF1771

52 W- 900 MHz QUAD Channel Base Radio PA DLN1202 CTF1082

52 W- 800 MHz QUAD Channel Base Radio PA CLF1499 CLF1400

QUAD+2 Channel Base Radio PA DLN6655 CLF1835

Number

Kit

Number

Enhanced Base Transceiver System (EBTS)

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Volume 2 Power Amplifier

Power Amplifier Overview

Power Amplifier Overview 5

Note The power outputs discussed on this section for the 800 MHz QUAD

and 900 MHz QUAD Power Amplifiers are referenced to the single carrier mode, operating at 52 W average power output from the Power Amplifier’s output connector.

General Specifications of the transmitter circuitry, including the Exciter and PAs, are

provided in Base Radio Overview section. Figure 5-1 shows the 40W, 800 MHz PA. Figure 5-2 shows the 70W, 80 0 MHz PA. Figure 5-3 shows the 800 MHz QUAD PA (the 900 MHz QUAD PA is similar in appearance). Figure 5-4 shows the QUAD+2 PA.

40W-800 MHz, 70W-800 MHz, 800 MHz QUAD and 900 MHz QUAD

The Power Amplifier (PA), with the Exciter, provides the transmitter functions for the Base Radio. The PA accepts the low-level modulated RF signal from the Exciter. The PA then amplifies the signal for transmission and distributes the signal through the RF output connector.

The 800 MHz Base Radio can be equipped with either 40 Watt PA, TLF2020 (version CLF1771) or 70 Watt PA, TLN3335 (version CLF1772). The 40W PA module consists of five hybrid modules, four pc boards, and a module heatsink/housing assembly. The 70W PA module consists of eight hybrid modules, four pc boards, and a module heatsink/housing assembly.

The PA connects to the chassis backplane through a 96-pin DIN connector and three blindmate RF connectors. Two Torx screws located on the front of the PA hold it in the chassis.

QUAD+2

The QUAD+2 Power Amplifier is a hot-swap capable, forced convection cooled RF power amplifier. It accepts a low-level modulated RF signal from the transceiver module, and amplifies it for transmission via the site transmit antenna.

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Power Amplifier Volume 2

Power Amplifier Overview

Figure 5-3 800/900 MHz QUAD PA

Figure 5-4 QUAD+2 PA

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Volume 2 Power Amplifier

PA Theory of Operation

PA Theory of Operation 5

Table 5-2 describes the basic functions of the PA circuitry. Figures 5-5 and 5-6 show the functional block diagrams of 40W, 800 MHz and 70W , 800 MHz P A, respectively. Figures 5-7 shows a functional block diagram of 800 QUAD MHz. Figures 5-8 shows a functional block diagram of 900 MHz QUAD PA. Figures 5-9 shows a functional block diagram of QUAD+2 PA.

Table 5-2 Power Amplifier Circuitry

Circuit Description

■ Serves as the main interface between the PA and the backplane

board

■ Accepts RF input from the Exciter via a blindmate RF connector

■ Routes the RF input via a 50 Ω stripline to the Linear Driver Module

RF amplifier

■ Routes the RF feedback from the RF Combiner/Peripheral Module to

the Exciter via a blindmate RF connector

DC/Metering Board

■ Provides digital alarm and metering information of the PA to the BRC

via the SPI bus

■ Routes DC power to the fans and PA

■ Contains the thermistor that senses the PA temperature (800 MHz

QUAD and 900 MHz QUAD)

■ Contains a Linear Driver Module and Linear Final Module Bias

Enable Circuit (900 MHz QUAD)

■ Contains a Voltage Variable Attenuator Circuit (900 MHz QUAD)

Linear Driver Module (LDM)

Interconnect Board

■ Contains two Class AB stages with the final stage in a parallel

configuration (70W-800 MHz, 40W-800 MHz, 800 MHz QUAD)

■ Contains three cascaded Class AB stages with the first two stages

configured as distributed amplifiers and the final stage in parallel configuration (900 MHz QUAD)

■ Amplifies the low level RF signal ~11mW average power from the

Exciter via the DC/Metering Board (70W-800 MHz, 800 MHz QUAD*, 900 MHz QUAD*)

■ Amplifies the low-level RF signal ~8 mW average power from the

Exciter via the DC/Metering Board (40W- 800 MHz)

■ Provides an output of:

~8 W (70W, 800MHz) average power

■ ~4 W (40W, 800 MHz) average power

■ ~6 W (800 MHz QUAD* and 900 MHz QUAD*) average power

■ Provides RF interconnection from the LDM to the RF Splitter board

■ Provides DC supply filtering

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16-June-06 68P80801E35-E 5-7

Power Amplifier Volume 2

PA Theory of Operation

Table 5-2 Power Amplifier Circuitry (continued)

Circuit Description

■ Interfaces with the DC/Metering Board to route DC power to the

LFMs

■ Interfaces with the DC/Metering Board to route PA Bias Enable to the

six Linear Final Modules (900 MHz Quad)

RF Splitter/DC board

Linear Final Module (LFM)

■ Contains splitter circuits that split the RF output signal of the LDM to

the three Linear Final Modules (40W- 800 MHz)

■ Contains splitter circuits that split the RF output signal of the LDM to

the six Linear Final Modules (70W- 800 MHz, 800 MHz QUAD and 900 MHz QUAD)

■ Each module contains two Class AB amplifiers in parallel. Each

module amplifies one of three RF signals (~ 84 W average power) from the LDM (via the Splitter/DC board). Three LFMs provide a sum RF output of approximately 48 W average power, before losses. (40W, 800MHz)

■ Each module contains two Class AB amplifiers in parallel. Each

module amplifies one of six RF signals (~ 8 W average power) from the LDM (via the Splitter/DC board). Six LFMs provide a sum RF output of approximately 97 W average power, before losses. (70W, 800MHz)

■ Each module contains two Class AB amplifiers in parallel. Each

module amplifies one of six RF signals (~6W average power) from the LDM (via the splitter/DC Board). Six LFMs provide a sum RF output of approximately 73W average power , before losses. (800 MHZ QUAD* and 900 MHz QUAD*)

RF Interconnect Board (40W- 800 MHz PA only)

Combiner Board (70W-800 MHz, 800 MHz QUAD, and 900 MHz QUAD only)

■ Contains three transmission lines that interconnect the LFMs to the

RF Combiner/Peripheral Module

■ Contains three separate Quadrature combiner circuits that

respectively combine the six RF outputs from the LFMs into three signals. These three signals, in turn, are applied to the RF Combiner/ Peripheral Module.

Enhanced Base Transceiver System (EBTS)

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Volume 2 Power Amplifier

PA Theory of Operation

Table 5-2 Power Amplifier Circuitry (continued)

Circuit Description

■ Contains a combiner circuit that combines the three RF signals from

the RF Interconnect Board (40W- 800 MHz PA) or the Combiner Board (70W-800 MHz PA). It then routes the combined RF signal through a single stage circulator and a Low Pass Filter. The final output signal is routed to the blindmate RF connector (40W-800 MHz and 70W-800 MHz PAs).

■ Contains a combiner circuit that combines the three RF signals from

the Combiner Board. It then routes the combined RF signal through

RF Combiner/Peripheral Module

a dual stage circulator and a Low Pass Filter. The final output signal is routed to the blindmate RF output connector. (800 MHz QUAD and 900 MHz QUAD PAs)

■ Contains an RF coupler that provides an RF feedback signal to the

Exciter via a blindmate RF connector on the DC/Metering Board. Also contains a forward and reverse power detector for alarm and power monitoring purposes.

■ Contains the thermistor that senses PA temperature and feeds the

signal back to the DC/Metering Board for processing (40W-800 MHz, 70W-800 MHz)

Fan Assembly

DC Core Board (QUAD+2 only)

Driver Board (QUAD+2 only)

Final Board (QUAD+2 only)

Isolator Board (QUAD+2 only)

Low Pass Filter Board (QUAD+2 only)

■ Consists of three fans used to keep the PA within predetermined

operating temperatures

■ Provides Non-volatile memory (NVM) to store unique power amplifier

calibration information

■ Provides Gain and FB power control

■ Provides Diagnostic sensors

■ Provides Digital interface to the rest of the base radio

■ Provides Cooling measures control

■ Provides Status LEDs

■ Amplifies the output RF signal from the transceiver module (via the

core board) to an intermediate power level

■ Provides first two stages of RF amplification

■ Amplifies the output RF signal from the driver board (via the

distribution board).

■ Provides last two stages of RF amplification

■ Provides proper RF loading to the final module

■ Reduces harmonic power levels conducted through the PA RF

output connector to acceptable levels

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E 5-9

Power Amplifier Volume 2

PA Theory of Operation

Table 5-2 Power Amplifier Circuitry (continued)

Circuit Description

Null Board

■ Provides +28Vdc to the Distribution Board

(QUAD+2 only)

Distribution Board (QUAD+2 only)

■ Provides all signal routing from the Core and Null Boards to that of

the Final and Low Pass Filter boards

Note * The power outputs described in this section for the 800 QUAD and 900 QUAD PAs are

references to the single carrier mode operating at 52W average power out from the PA output connector.

DC/Metering Board Non-QUAD PA

The DC/Metering Board provides the interface between the PA and the Base Radio backplane. The preamplified/modulated RF signal is input directly from the Exciter via the Base Radio backplane.

The RF input signal is applied to the input of the Linear Driver Module (LDM). The RF feedback signal is fed back to the Exciter, where it is monitored for errors.

The primary function of the DC/Metering Boards is to monitor proper operation of the PA. This information is forwarded to the Base Radio Controller (BRC) via the SPI bus. The alarms diagnostic points monitored by the BRC on the PA include the following:

■ Forward power

■ Reflected power

■ PA temperature sense

■ Fan Sensor

QUAD PA Only

The DC/Metering Board in the QUAD Radio serves the same function as it does in other radios. However, its circuitry is modified for compatibility with the QUAD Station. As a result, its logic circuitry is operated at 3.3 VDC.

In addition to the functions listed for non-QUAD versions above, the following meter points are ported to the SPI bus:

■ A and B Currents

■ Thermistor (for PA temperature sensing circuit on the DC/Metering Board)

■ Voltage Variable Attenuator Circuit (900 MHz QUAD version)

■ PA Bias Enable Circuitry (900 MHz QUAD version)

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Volume 2 Power Amplifier

PA Theory of Operation

Linear Driver Module 40W-800 MHz, 70W-800 MHZ and 800 MHZ QUAD PAs

The Linear Driver Module (LDM) amplifies the low-level RF signal from the Exciter. The LDM consists of a two-stage cascaded Class AB amplifier, with the final stage in a parallel configuration.

See Table 5-2 for the approximate input and output levels of the various LDMs. The LDM output is fed to the RF Splitter/DC Distribution Board via an Interconnect Board.

900 QUAD PA

The Linear Driver Module (LDM) amplifies the low-level RF signal from the Exciter. The LDM consists of a three stage, cascaded, Class AB amplifier, with the final stage in a parallel configuration.

See Table 5-2 for the approximate input and output power of the 900 MHz QUAD LDM.

The LDM Output is fed to the RF Splitter/DC Distribution Board via the Interconnect Board.

Interconnect Board The output of the LDM is applied to the Interconnect Board, which provides

an RF connection to the RF Splitter/DC Distribution Board. As a separate function, area on the Interconnect Board serves as a convenient mounting location for electrolytic capacitors used for filtering the +28 VDC supply.

RF Splitter/DC Distribution Board

The RF Splitter portion of this board accepts the amplified signal from the LDM (via the Interconnect Board). The primary function of this circuit is to split the RF signal into drive signals for the LFMs.

In the 40W-800 MHz PA, this circuit splits the drive signal into three separate paths to be applied to the three LFMs, where the signals will be amplified further. In the 70W-800 MHz, 800 MHz QUAD and 900 MHZ QUAD PAs, this circuit splits the drive signal into six separate paths to be applied to the six LFMs, where the signals will be amplified further.

The DC Distribution portion of this board interfaces directly with the DC/ Metering Board to route DC power to the LFMs and provide PA Bias Enable (900 MHz QUAD only)

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E 5-11

Power Amplifier Volume 2

PA Theory of Operation

Linear Final Modules The RF Splitter output signals are applied directly into the LFMs for final

amplification. Each LFM contains a coupler that splits the LFM input signal and feeds the parallel Class AB amplifiers that amplify the RF signals.

In the 40W PA, the amplified signals are then combined on the LFM and sent directly to the RF Interconnect Board. In the 70W PA, the amplified signals are then combined on the LFM and sent directly to the Combiner Board.

See Table 5-2 for the approximate total summed output powers of the various LFMs, before output losses.

RF Interconnect

40W- 800 MHz PA Only

Board

The RF Interconnect Board consists of transmission line paths which route the three output signals from the LFMs to the three inputs of the RF Combiner/ Peripheral Module.

Combiner Board The Combiner Board combines pairs of signals into single signals, thereby

combining the six signals from the LDMs into three signals. The resulting three signals are applied to the RF Combiner/Peripheral Module.

RF Combiner/

40- 800 MHz, 70W- 800 MHz PAs

Peripheral Module

This module consists of two portions: an RF combiner and a peripheral module. The RF Combiner portion of the module combines the three RF signals from the RF Interconnect Board (40W- 800 MHz PA) or the Combiner Board (70W- 800 MHz PA) into a single signal using a Wilkinson coupler arrangement.

Following the combiner circuit, the single combined RF signal is then passed through a directional coupler which derives a signal sample of the LFM RF power output. Via the coupler, a sample of the RF output signal is fed to the Exciter, via the DC/Me t eri ng Boa r d, as a feedback signal. Following the coupler, the power output signal is passed through a single stage circulator, which protects the PA in the event of high reflected power.

The peripheral portion of the module provides a power monitor circuit that monitors the forward and reflected power of the output signal. This circuit furnishes the A/D converter on the DC/Metering Board with input signals representative of the forward and reflected power levels.

Enhanced Base Transceiver System (EBTS)

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Volume 2 Power Amplifier

PA Theory of Operation

For forward power, a signal representative of the measur ed value is sent to the BRC via the SPI bus. The BRC determines if this level is within tolerance of the programmed forward power level. If the level is not within parameters, the BRC will issue a warning to the site controller which, in turn, will shut down the Exciter if required.

Reflected power is monitored in the same manner. The BRC uses the reflected power to calculate the voltage standing wave ratio (VSWR). If the VSWR is determined to be excessive, the forward power is rolled back. If it is extremely excessive, the BRC issues a shut-down command to the Exciter.

A thermistor is located on the RF Combiner/Peripheral module to monitor the operating temperature of the PA. The thermistor signal indicating excessive temperature is applied to the A/D converter and then sent to the BRC. The BRC issues a cut-back command to the Exciter module if the monitored temperature is greater than 185° F (85° C).

800 MHz QUAD and 900 MHz QUAD

This module consists of two parts: an RF combiner and a Peripheral module. The RF combiner combines three RF signals from the Combiner Board into a single signal using a Wilkinson coupler arrangement. Following the combiner circuit, the single combined RF signal is then passed through a directional coupler, which derives a signal sample of the LFM RF power output. Via the coupler, a sample of the RF output signal is fed to the Exciter, via the DC/ Metering Board, as a feedback signal. Following the coupler , the power output signal is passed through a dual stage circulator, which protects the PA in the event of high reflected power.

The Peripheral module provides a power monitor circuit that monitors the forward and reflected power of the output signal. This circuit furnishes the A/ D converter on the DC/Metering Board with input signals, representative of the forward and reflected power levels.

For forward power, a signal representative of the measur ed value is sent to the BRC via the SPI bus. The BRC determines if this level is within tolerance of the programmed forward power level. If the level is not within tolerance, the BRC will issue a warning to the site controller, which, in turn, will shut down the Exciter, if required.

Reflected power is monitored in the same manner. The BRC uses the reflected power to calculate the voltage standing wave ratio (VSWR). If the VSWR is calculated as excessive, forward power is rolled back. If the VSWR calculation is exceedingly out of tolerance, the BRC issues a shut-down command to the Exciter.

The Thermistor that monitors the operating temperature of the 800 MHZ QUAD and 900 MHz QUAD PAs is located on the DC/Metering Board

Enhanced Base Transceiver System (EBTS)

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Power Amplifier Volume 2

PA Theory of Operation

Fan Module The PA contains a fan assembly to maintain normal operating temperature

through the use of a cool air intake. The fan assembly consists of three individual fans in which airflow is directed across the PA heatsink.

The current draw of the fans is monitored by the DC/Metering Board. A voltage representative of the current draw is monitored by the BRC. The BRC flags the iSC if an alarm is triggered. The PA LED on the front panel of the BRC also lights, however the PA does not shut down due to a fan failure alone.

DC Core Board (QUAD+2)

Driver Board (QUAD+2)

Final Board (QUAD+2)

The Core Board communicates with the other base radio modules as well as internal P A modules. It utilizes non-volatile memory (NVM) via an EEPROM to store unique PA calibration information.

The Driver Amplifier Board provides the first two stages of RF amplification within the PA. It accepts the output RF signal from the transceiver module (via the core board) and amplifies it to an intermediate power level. The Driver Amplifier Board also provides:

■ Gain compensation over temperature.

■ On-board DC regulation.

■ Transmitter standby functionality

The Final Amplifier Board provides the last two stages of RF amplification, including the second RF gain stage (parallel stage). QUAD+2 utilizes two Final Amplifier Boards.:

■ RF power splitting (4–way)

■ RF power combining (4–way)

■ Diagnostics

■ Transmitter standby functionality

Isolator Board (QUAD+2)

The Isolator provides proper RF loading to the final module output regardless of the load presented to the output of the PA itself. The Isolator contains a load resistor to dissipate any reflected power caused by load mismatches at the output of the PA.

Enhanced Base Transceiver System (EBTS)

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Volume 2 Power Amplifier

PA Theory of Operation

Low Pass Filter (LPF) Board (QUAD+2)

Null Board (QUAD+2)

Distribution Board (QUAD+2)

The LPF Board reduces harmonic power levels conducted through the PA RF output connector to acceptable levels. The LPF Board has forward and feedback RF power detectors to monitor forward and reflected output power from the PA, in reference to its output connector. It has a single stage isolator that provides > 20dB isolation with < 0.35dB insertion loss. It also p rovi des a low pass filter with < 0.54dB of in-band insertion loss.

The Null Board provides the +28Vdc supply routing from the Core board to the Distribution board (which routes it to the Final board). It also provides the necessary bulk capacitance that is warranted by the Final board.

The Distribution Board provides for all signal routing from the Core and the Null boards to the Final and LPF boards:

■ RF signal from the driver module is split and provided as the input to each

of the two final modules.

■ RF output from both of the final modules is combined to a single path and

provided as the input to the isolator.

■ RF power is coupled off the combined port and fed back to the XCVR

■ DC Power routing from the NULL board to the Final board

■ Forward and reverse DC signaling from the LPF board

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E 5-15

Power Amplifier Volume 2

Figure 5-8 900 MHz QUAD Power Amplifier Functional Block Diagram

RF INPUT

SPI BUS

TO/FROM BRC

ADDRESS BUS

FROM BRC

ADDRESS DECODE, MEMORY,

& A/D CONVERTER CIRCUITRY

EEPOT

C_E

INC

V_D

CLK/DATA

MEMORY

CHIP SELECT

DECODE

CIRCUITRY

BOARD SELECT

DECODE

CIRCUITRY

VVA

PA_ENABLE (PA_E)

CHIP SELECT

CHIP

SELECT

A/D

CONVERTER

LINEAR DRIVER MODULE

STAGE 1

CLASS AB

DISTRIBUTED

FAN SENSE

PATEMP SENSE

FWD PWR

REF PWR

STAGE 2

CLASS AB

DISTRIBUTED

PA_E

STAGE 2

CLASS AB

FAN ASSEMBLY

INTERCONNECT

BOARD

FILTER

+28 VDC

PA_E PA_E

RF SPLITTER/DC

DISTRIBUTION BOARD

50 OHM

LOAD

50 OHM

LOAD

50 OHM

PA_E

LINEAR FINAL

MODULES

PA_E

COMBINER

BOARD

50 OHM

LOAD

50 OHM

LOAD

50 OHM

LOAD

RF OUT

TO ANTENNA

RF FEEDBACK

TO EXCITER

MODULE

Enhanced Base Transceiver System (EBTS)

LOW-PASS

FILTER

50 OHM

LOAD

CIRCULATOR

50 OHM

LOAD

CIRCULATOR

TEMPERATURE

SENSOR

RF COMBINER/

PERIPHERAL MODULE

50 OHM

LOAD

50 OHM

LOAD

50 OHM

PA_E

STAGE 3

CLASS AB

PA_E

EBTS417_900 121701JNM

5-20 68P80801E35-E 16-June-06

Power Supply Volume 2

Overview

Overview 6

This section provides technical information for the DC Power Supply (PS).

FRU Number to Kit Number Cross Reference

DC Power Supply Field Replaceable Units (FRUs) are available for the iDEN EBTS. The FRU contains the Power Supply kit and required packaging. Table 6-1 provides a cross reference between Exciter FRU numbers and kit numbers.

Table 6-1 FRU Number to Kit Number Cross Reference

FRU

Description

Single Channel DC Power Supply TLN3338 CPN1027

QUAD Channel DC Power Supply CLN1498 CLN1461

QUAD+2 Channel DC Power Supply DLN6568 CPN1081

Number

Kit

Number

Enhanced Base Transceiver System (EBTS)

6-2 68P80801E35-E 16-June-06

Power Supply Volume 2

DC Power Supply for QUAD Channel Base Radios

DC Power Supply for QUAD Channel Base Radios 6

QUAD Channel DC Power Supply Overview

The QUAD Channel DC Power Supply provides DC operating voltages to QUAD Channel Base Radio FRUs. The power supply accepts input voltage sources from 41VDC to 60VDC. Input sources may be either positively or negatively grounded.

On initial startup, the supply requires a nominal 43 VDC. If the voltage drops below 41 VDC, the QUAD Channel DC Power Supply enters quiescent mode. In quiescent mode, the power supply emits no power.

The QUAD Channel DC Power Supply is designed for sites with an available DC voltage source. Output voltages from the DC Power Supply are 28.6 VDC, 14.2 VDC and 3.3 VDC, with reference to output ground. The supply is rated for 575 Watts of continuous output, with up to 113° F (45° C) inlet air. At 140° F (60° C), the 28.6 VDC output reduces to 80% of maximum.

The QUAD Channel DC Power Supply consists of the Power Supply and front panel hardware. The QUAD Channel DC Power Supply connects to the chassis backplane through an edgecard connector. Two Torx screws on the front panel secure the QUAD Channel DC power supply to the chassis.

Figure 6-2 shows the QUAD Channel Power Supply with the cover removed.

Figure 6-2 Quad Carrier Power Supply

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Volume 2 Power Supply

DC Power Supply for QUAD Channel Base Radios

QUAD Channel DC Power Supply Controls and

Indicators

QUAD Channel DC Power Supply Performance Specifications

Table 6-5 summarizes LED indications on the QUAD Channel DC Power Supply during normal operation. The ON/OFF switch behind the front panel turns DC power supply on and off.

Table 6-5 DC Power Supply Indicators

LED Condition Indications

Solid (on)

Green

Off

Solid (on)

Red

Off

Power Supply is on, and operating under normal conditions with no alarms

Power Supply is turned off or required power is not available

Power Supply fault or load fault on any output, or input voltage is out of range

Power Supply is operating normally, with no alarms

Table 6-6 lists the specifications for the QUAD Channel DC Power Supply.

Table 6-6 DC Power Supply Specifications

Description Value or Range

Operating Temperature

Input Voltage 41 to 60 VDC

Input Polarity Positive (+) ground system

Startup Voltage 43 VDC (minimum)

Input Current 18.0 A (maximum) @ 41 VDC

Steady State Output Voltages

Total Output Power Rating

0° to +40° C (no derating) +41° to +60° C (derating)

28.6 VDC +

14.2 VDC +

3.3 VDC +

575 W (no derating) 485 W (derating)

5% 5%

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Power Supply Volume 2

DC Power Supply for QUAD Channel Base Radios

Table 6-6 DC Power Supply Specifications (continued)

Description Value or Range

All outputs 150mV p-p (measured with 20 MHz BW oscilloscope at 25°C) High Frequency individual harmonic voltage limits (10kHz to 100MHz) are:

Output Ripple

Short Circuit Current 0.5 A average (maximum)

28.6 VDC 1.5 mV p-p

14.2 VDC 3.0 mV p-p

3.3 VDC 5.0 mV p-p

QUAD Channel DC Power Supply

Theory of Operation

Table 6-7 briefly describes the basic DC Power Supply circuitry. Figure 6-6 shows the functional block diagrams for the DC Power Supply.

Table 6-7 DC Power Supply Circuitry

Circuit Description

Routes input current from the DC power input cable

Input Circuit

Startup Inverter Circuitry

Main Inverter Circuitry

Temperature Protection

+14.2 VDC Secondary Converter Circuitry

through the high current printed circuit edge connector, EMI filter, panel mounted combination circuit breaker, and on/off switch

Provides VDC for power supply circuitry during initial power-up

Consists of a switching-type power supply to generate the +28.6 VDC supply voltage

The Power Supply contains a built-in cooling fan that runs whenever the supply is powered on. The supply shuts down if the temperature exceeds a preset threshold

Consists of a switching-type power supply to generate the +14.2 VDC supply voltage

+3.3 VDC Secondary Converter Circuitry

Clock Generator Circuitry

Address Decode, Memory, & A/D Converter

Consists of a switching-type power supply to generate the +3.3 VDC supply voltage

Generates the 267 kHz and 133 kHz clock signals used by the pulse width modulators in the four inverter circuits

Serves as the main interface between A/D on the Power Supply and the BRC via the SPI bus

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Volume 2 Power Supply

Figure 6-6 QUAD DC Power Supply Functional Block Diagram (Sheet 1 of 2)

EXTERNAL

DC INPUT 41-60 VDC

INPUT FILTER BOARD

VCC

PULSE WIDTH

MODULATOR

FILTER

CIRCUITRY

TRANSISTOR

FRONT PANEL

ON / OFF

SWITCH

STARTUP INVERTER CIRCUITRY

STARTUP ISOLATION

VCC

TRANSFORMER

SWITCH

MAIN INVERTER CIRCUITRY

SOFTSTART

CIRCUITRY

SHUTDOWN

+12V STARTUP BIAS

PULSE WIDTH

MODULATOR

267 KHZ

+12V STARTUP BIAS

VCC

PULSE WIDTH

MODULATOR

TRANSISTOR

DRIVERS

VCC

133 KHZ

VCC

FET

DRIVER

+28 V BULK

POWER FET

SWITCHES

POWER FET

SWITCH

MAIN ISOLATION

TRANSFORMER

133 KHZ

+ 14.2V OVERCURRENT

DETECT

FILTER

CIRCUITRY

REF

CURRENT

DETECT

SURGE CURRENT

DELAY

FILTERING

CIRCUITRY

REF

+28 V BULK TO

+28.6 V OVERVOLTAGE

DETECT

REF

OVERCURRENT

DETECT

+14.2 V INVERTER CIRCUITRY

+14.2V

FET

OVERVOLTAGE

DETECT

DIAGNOSTICS

CIRCUITRY

CROWBAR

CIRCUIT

MOD FAIL

+28.6 VDC

+14.2V

P/O

BACKPLANE

CONNECTOR

3 4

14 15

P/O

BACKPLANE

CONNECTOR

16 17

22 23

+28.6 VDC

STATION

MODULES

BACKPLANE

+14.2V DC

STATION

MODULES

BACKPLANE

VIA

BULK DETECT

133 KHZ

CLOCK GENERATOR CIRCUITRY

CLOCK

GENERATOR

CIRCUITRY

267 KHZ

÷ 2

133 KHZ

DIAGNOSTICS

CIRCUITRY

267 KHZ

133 KHZ

VCC

PULSE WIDTH

MODULATOR

VCC

FET

DRIVER

+ 28V BULK

POWER FET

SWITCH

133 KHZ

+ 5V OVERCURRENT

DETECT

FILTER

CIRCUITRY

REF

SURGE CURRENT

DELAY

REF

+5.1 V INVERTER CIRCUITRY

FET

OVERVOLTAGE

DETECT

CROWBAR

CIRCUIT

CONNECTOR

+5.1 V

P/O

BACKPLANE

24 25

30 31

+5.1 V DC

STATION

MODULES

VIA

BACKPLANE

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Power Supply Volume 2

Figure 6-7 QUAD DC Power Supply Functional Block Diagram (Sheet 2 of 2)

BULK DETECT

FROM STARTUP

INVERTER

CIRCUITRY

DIAGNOSTICS CIRCUITRY

REF

HEATSINK STATUS

DETECT

HI-TEMP DETECT

REF

MODULE

FAIL

(RED)

MOD FAIL

INPUT FAIL

HEATSINK DIAG

REF

INPUT GOOD

(GREEN)

J300

COOLING

FAN

+5.1 V

A/D

CONVERTER

SPI BUS

TO/FROM

STATION CONTROL

MODULE

FROM

STATION

CONTROL

BOARD

ADDRESS DECODE CIRCUITRY

P/O ADDRESS BUS

T°

ADDRESS

DECODE

CIRCUITRY

THERMISTOR MOUNTED ON

HEATSINK

ENABLE

FROM

DETECT

CIRCUITRY

+14.2V DIAG

+5.1 V DIAG

+28.6 V DIAG

ENABLE

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Troubleshooting Volume 2

Overview

This chapter is a guide for isolating Base Radio failures to the FRU level. There are three sections- one each for Legacy Single Channel Base Radios, Generation 2 Single Channel Base Radios, QUAD Channel Base Radios and QUAD+2 Channel Base Radios. Each section contains procedures for:

n Troubleshooting n Verification/Station Operation

The maintenance philosophy for any Base Radio is to repair by replacing defective FRUs with new FRUs. This method limits down-time.

Two troubleshooting procedures are included. Each procedure is designed to quickly identify faulty FRUs.

Ship defective FRUs to a Motorola repair depot for repair.

Note Any product damage resulting from improperly packaged equipment

will not be covered under the standard Motorola warranty agreement.

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Volume 2 Troubleshooting

Troubleshooting Preliminaries

Recommended Test Equipment

Table 8-1 lists recommended test equipment necessary for performing Base Radio troubleshooting/verification procedures.

Table 8-1 Recommended Test Equipment

Equipment Model/Type Manufacturer Description

Service Computer † 80286 or better

Application Code n/a Motorola

Communication Software

RS-232 Cable n/a Locally Procured

RF Attenuator, 250W, 10dB

RF Power Meter††

ProComm Plus

HyperTerminal

01-80301E72

58-45-33

HP438A

E4418

IBM, IBM compatible, or

Macintosh

Symantec

Windows 95/98/2000/XP

Motorola

Aeroflex / Weinschel

Hewlett-Packard

Agilent

Local service computer with a Serial Port

Compressed application code for Gen 3 SC and BRC

Host communication

Straight through connecting cable with DB9 connector for BRC port

Used to attenuate receive signals for testing

Used to perform relative calibration and linearity checks of signal source

Low-Power Sensor Head

Rubidium Frequency Standard

iDEN Test Set R2660 Motorola

HP8481D

E9301

RubiSource Symmetricom

Hewlett-Packard

Agilent

Used in conjunction with Power Meter

Used as a frequency standard for receive test

Used for checking receive operation

Note † Either a DOS-based computer or Macintosh computer may be used for the service computer.

Contact your iDEN System Manager for additional information.

†† Do not substitute analog power meter (such as HP435A). Analog power meter averaging time is not

long enough to accurately read pulsed iDEN signal.

Troubleshooting Procedures

Many of the troubleshooting and station operation procedures require ManMachine Interface (MMI) commands. These commands are used to communicate station level commands to the Base Radio via the RS-232 communications port located on the front of the BRC.

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Troubleshooting Volume 2

Troubleshooting Preliminaries

Routine Checkout

Procedure One is a quick, non-intrusive test performed during a routine site visit. Use this procedure to verify proper station operation without taking the station out of service. Figure 8-1 shows the Procedure One Troubleshooting Flowchart.

Figure 8-1 Procedure One Troubleshooting Flowchart

ROUTINE

SITE VISIT

OBSERVE LED

INDICATORS

Refer to

Controls and Indicators

for LED Definitions

PROCEDURE 1

Module Suspected

of Being Faulty?

CHECK CURRENT

ALARM STATUS

Use MMI command

get alarms

to check alarm status

Module Suspected

of Being Faulty?

DONE

Ye s

Go to Troubleshooting

Procedure 2 Flow Chart

Go to Troubleshooting

Procedure 2 Flow Chart

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Volume 2 Troubleshooting

Troubleshooting Preliminaries

Reported/Suspected Problem

Use Procedure T wo to troubleshoot reported or suspected equipment malfunctions. Perform this procedure with equipment in service (non-intrusive) and with equipment taken temporarily out of service (intrusive).

Figure 8-2 shows the Procedure Two Troubleshooting Flowchart.

Figure 8-2 Procedure Two Troubleshooting Flowchart

PROBLEM

REPORTED OR SUSPECTED

OBSERVE LED

INDICATORS

Refer to

Controls and Indicators

for LED Definitions

PROCEDURE 2

Module Suspected

of Being Faulty?

CHECK CURRENT

ALARM STATUS

Use MMI command

get alarms

to check alarm status

Module Suspected

of Being Faulty?

PERFORM

VERIFICATION TESTS

Use MMI commands to

perform tests as specified in

station verification procedure.

Module Suspected

of Being Faulty?

DONE

Clear Problem Report

Ye s

Go to Module Replacement

Procedures Section

Go to Module Replacement

Procedures Section

Go to Module Replacement

Procedures Section

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Troubleshooting Volume 2

QUAD Channel Base Radio/Base Radio FRU Replacement Procedures

Replace suspected station modules with known non-defective modules to restore the station to proper operation. The following procedures provide FRU replacement instructions, post-replacement adjustments and verification instructions.

QUAD Base Radio Replacement Procedure

Note Base Radio removal and installation procedures appear for reference

or buildout purposes. Field maintenance of Base Radios typically consists of replacement of FRUs within the Base Radio. Perform Base Radio FRU replacement according to “Base Radio FRU Replacement Procedure” below.

Perform Base Radio (BR) replacement as described in the following paragraphs.

CAUTION

Improper lifting or dropping the BR could result in serious personal injury or equipment damage.

Base Radios are HEAVY!

Handle the BR with extreme caution, and according to local health and safety regulations.

Removal

Remove the BR from the Equipment Cabinet as follows:

CAUTION

A Single Carrier BR can weigh up to 76 LBS (34 KG). A QUAD Carrier BR can weigh up to 91 LBS (41 KG). Handle the BR with extreme caution, and according to local health and safety regulations.

1. Remove power from the Base Radio by setting the Power Supply ON/OFF

switch to the OFF position.

2. Tag and disconnect the cabling from the BR rear panel connectors.

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QUAD Channel Base Radio/Base Radio FRU Re-

3. Remove the Power Amplifier module to reduce the BR weight. Remove

the two M10 Torx screws that secure the Power Amplifier module. Slide the module out of the chassis.

4. Remove the four M30 TORX screws which secure the BR front panel to

the Equipment Cabinet mounting rails.

5. While supporting the BR, carefully remove the BR from the Equipment

Cabinet by sliding the BR from the front of cabinet. When the BR becomes free from its mounting rails, be sure to fully support it.

Installation

Install BR in Equipment Cabinet as follows:

CAUTION

A Single Carrier BR can weigh up to 76 LBS (34 KG). A QUAD Carrier BR can weigh up to 91 LBS (41 KG). Handle the BR with extreme caution, and according to local health and safety regulations.

1. If adding a BR, install side rails in the appropriate BR mounting position

in the rack.

2. Remove the Power Amplifier module to reduce the BR weight. Remove

the two M10 Torx screws that secure the Power Amplifier module. Slide the module out of the chassis.

3. While supporting the BR, carefully lift and slide the BR in the Equipment

Cabinet mounting position.

4. Secure the BR to the Equipment Cabinet mounting rails using four M30

Torx screws. Tighten the screws to 40 in-lb (4.5 Nm).

5. Slide the Power Amplifier module back into the BR chassis. Replace two

M10 Torx screws that secure the Power Amplifier module. Secure the module by tightening the screws to the specified torque of 5 in-lbs.

6. Connect the cabinet cabling to the BR. Refer to Backplane figure XX.

7. Perform BR activation as described below. Note Base Radio removal and installation procedures appear for reference

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Troubleshooting Volume 2

QUAD Channel Base Radio/Base Radio FRU Replacement Procedures

Anti-Static Precautions

CAUTION

The Base Radio contains static-sensitive devices. Prevent electrostatic discharge damage to Base Radio modules! When replacing Base Radio FRUs, wear a grounded wrist strap. Observe proper anti-static procedures.

Motorola publication 68P811 06E84 provides complete static protection information. This publication is available through Motorola National Parts.

Observe the following additional precautions:

n Wear a wrist strap (Motorola Part No. 4280385A59 or equivalent) at all

times when servicing the Base Radio to minimize static build-up.

n A grounding clip is provided with each EBTS cabinet. If not available, use

another appropriate grounding point.

QUAD BRs Radio FRU Replacement Procedure

n DO NOT insert or remove modules with power applied to the Base Radio.

ALWAYS turn the power OFF using the Power Supply rocker switch on the front of the Power Supply module.

n Keep spare m odule s in fa ctor y pac kag ing for transporting. When shipping

modules, always pack in original packaging.

Perform the following steps to replace any of the Base Radio FRUs:

Note After a Control Board or BR replacement, the integrated Site

Controller (iSC) reboots the BR. Whenever the BR goes off-line, the Replacement BRC Accept Timer begins counting down. A BR reboot occurs if the BR remains off-line as the timer times out. (The timer’ s default period is three minutes.) If someone turns on the BR before the timer times out, power down the BR. Then wait for the minimum timer period before turning on the BR.

1. Notice the Power Supply rocker switch, behind the front panel of the

Power Supply. Set the Power Supply rocker switch to the OFF (0) position. Turning off this switch removes power from the Base Radio.

2. Loosen the front panel fasteners. These are located on each side of the

module being replaced.

3. Pull out the module.

4. Insert the non-defective replacement module by aligning the module side

rails with the appropriate rail guides inside the Base Radio chassis.

5. Gently push the replacement module completely into the Base Radio

chassis assembly using the module handle(s).

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Volume 2 Troubleshooting

QUAD Channel Base Radio/Base Radio FRU Re-

CAUTION

DO NOT slam or force the module into the chassis assembly. Rough handling can damage the connectors or backplane.

6. Secure the replacement module by tightening the front panel fasteners to

the specified torque of 5 in-lbs.

7. Apply power to the Base Radio by setting the switch to the ON position.

8. Perform the Station Verification Procedure.

QUAD BR Power Amplifier (PA) Fan FRU Replacement

Perform the following steps to replace the Power Amplifier (PA) fans.

1. Remove the Power Amplifier from the Base Radio per FRU Replacement

Procedure.

2. Disconnect fan power cable from PA housing.

3. Remove front panel from fan assembly.

4. Remove fan assembly from PA chassis. Note To install the new fan kit, reverse above procedure.

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Troubleshooting Volume 2

QUAD Base Radio Station Verification Procedures

Perform the Station Verification Procedures whenever you replace a FRU. The procedures verify transmit and receive operations. Each procedure also contains the equipment setup.

QUAD BR Replacement FRU Verification

QUAD BR Base Repeater FRU Hardware Revision Verification

Before shipment, the factory programs all module-specific information. Base Radio specific information (e.g., receive and transmit frequencies) involves a download to the Base Radio from the network/site controller.

The Base Radio does not require replacement FRU alignment.

Note The following procedure requires the Base Radio to be out of service.

Unless the Base Radio is currently out of service, Motorola recommends performing this procedure during off-peak hours. Performing this procedure then minimizes or eliminates disruption of service to system users.

1. Connect one end of the RS-232 cable to the service computer.

2. Connect the other end of the RS-232 cable to the STATUS port, located on

the front panel of the EX/CNTL module.

3. After the BR is powered up using the front switch on the Power Supply

Module, press the reset button on the Control Module front panel. At the

prompt, hit a Carriage Return on the service computer to enter the test application mode. Using the field password, log in to the BR.

To enter field mode, at the

> prompt type login -ufield.

After entering the correct field password, the field> prompt is displayed on the service computer.

The default factory set field password is

motorola.

Note The ‘Out of Box’ default factory set field password is deleted and is

replaced by the customer defined field password contained within the OMC. This occurs as soon as the controller module receives its initial OMC download.

The default OMC set field password is

Motorola.

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QUAD Base Radio Station Verification Procedures

Note The OMC field password is customer configurable. Please contact the

Operations and Maintenance Center (OMC) operator on duty to obtain your customer unique field password.

field>login -ufield password:<login password>

field>

Note Future versions of the QUAD BR will ship with software that

recognizes the BR cabinet position. Default Motorola Manufacturing BR programmed cabinet position is (0,0), which automatically sends the radio to Test Application software mode upon power up. Upon setting a valid cabinet position, the radio will default to the Call Processing mode of operation.

4. Collect revision numbers from the station by typing the

following command:

field>fv -oplatform field>

5. If all modules return revision numbers of the format “Rxx.xx.xx”, then all

revision numbers are present. In that case, verification requires no further action. If revision numbers return as blank, or not in the format “Rxx.xx.xx”, contact your local Motorola representative or Technical Support.

6. Set desired cabinet id, position, and of BR by typing the following

commands, with the final number on each command being the desired cabinet id and position. The command example below sets cabinet id to 5, and cabinet position to 2.

field>ci -oplatform -c5 field>pi -oplatform -p2

field>

7. After checking all BRs, log out by keying the following command:

field> logout

Note T o start Call Processing mode of operation, reset the Base Radio using

the front panel switch.

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Troubleshooting Volume 2

QUAD Base Radio Station Verification Procedures

QUAD BR Transmitter Verification

The transmitter verification procedure verifies the transmitter operation and the integrity of the transmit path. This verification procedure is recommended after replacing an Exciter, Power Amplifier, BRC, or Power Supply module.

Note The following procedure requires the Base Radio to be out of service.

Unless the Base Radio is currently out of service, Motorola recommends performing this procedure during off-peak hours. This minimizes or eliminates disruption of service to system users.

Equipment Setup

To set up the equipment, use the following procedure:

1. Remove power from the Base Radio by setting the Power Supply rocker

switch (located behind the front panel of the Power Supply) to the OFF (0) position.

2. Connect one end of the RS-232 cable to the service computer.

3. Connect the other end of the RS-232 cable to the STATUS port located on

the front panel of the BRC.

CAUTION

Make sure power to BR is OFF before disconnecting transmitter RF connectors. Disconnecting transmitter RF connectors while the BR is keyed may result in RF burns from arcing.

4. Disconnect the existing cable from the connector labeled PA OUT. This

connector is located on the backplane of the Base Radio.

5. Connect a test cable to the PA OUT connector.

6. Connect a 10 dB attenuator (100 W or more average power dissipation) on

the other end of the test cable.

7. From the attenuator, connect a cable to the RF IN/OUT connector on the

R2660 Communications Analyzer.

8. Remove power from the R2660 and connect the Rubidium Frequency

Standard 10MHZ OUTPUT to a 10 dB attenuator.

9. Connect the other end of the 10 dB attenuator to the 10MHZ REFERENCE

OSCILLATOR IN/OUT connector on the R2660.

Note Refer to the equipment manual provided with the R2660 for further

information regarding mode configuration of the unit (Motorola Part No. 68P80386B72).

10. Set the R2660 to the EXT REF mode.

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QUAD Base Radio Station Verification Procedures

11. Apply power to the R2660.

12. Set the R2660 to the SPECTRUM ANALYZER mode with the center

frequency set to the transmit frequency of the Base Radio under test.

13. Perform the appropriate transmitter verification procedure below for the

particular Power Amplifier used in the Base Radio.

Transmitter Verification Procedure (QUAD Carrier 800 MHz and 900 MHz Power Amplifiers)

This procedure provides commands and responses to verify proper operation of the transmit path for 800 MHz and 900 MHz QUAD Channel Base Radios.

1. Power on the BR using the front switch on the Power Supply Module.

Press the reset button on the Control Module front panel. At the prompt, hit a Carriage Return on the service computer to enter the test application mode. Using the user_id -ufield and the field password, login to the BR.

To enter field mode, at the

> prompt type login -ufield.

After entering the correct field password, the field> prompt is displayed on the service computer.

The default factory set field password is

motorola.

Note The ‘Out of Box’ default factory set field password is deleted and is

replaced by the customer defined field password contained within the OMC. This occurs as soon as the controller module receives its initial OMC download.

The default OMC set field password is

Motorola.

Note The OMC field password is customer configurable. Please contact the

Operations and Maintenance Center (OMC) operator on duty to obtain your customer unique field password.

field>login -ufield password:<login password>

field>

2. Dekey the BR to verify that no RF power is being transmitted. Set the

transmit DSP test mode to “stop.” At the field > prompt, type:

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QUAD Base Radio Station Verification Procedures

field> power -otxch1 -p0

field> ptm -otx_all -mstop

field> dpm -otxch1 -mnone

field> dpm -otxch2 -mnone

field> dpm -otxch3 -mnone

field> dpm -otxch4 -mnone

Note The following command keys the transmitter. Make sure that

transmission only occurs on licensed frequencies or into an RF load.

3. Key the BR to 40 watts, following the steps below from the field > prompt:

a) 800 MHz QUAD: Set the frequency of transmit channel 1 through 4.

field> freq -otxch1 -f860

field> freq -otxch2 -f860.025

field> freq -otxch3 -f860.05

field> freq -otxch4 -f860.075

b) 900 MHz QUAD: Set the frequency of transmit channel 1 through 4.

field> freq -otxch1 -f935

field> freq -otxch2 -f935.025

field> freq -otxch3 -f935.05

field> freq -otxch4 -f935.075

c) Enable the channels by setting a data pattern to “iden”

field> dpm -otxch1 -miden

field> dpm -otxch2 -miden

field> dpm -otxch3 -miden

field> dpm -otxch4 -miden

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QUAD Base Radio Station Verification Procedures

Note After the following command is entered, power will be transmitted at

the output of the Power Amplifier.

d) Set the transmit power to 40 watts and key the BR.

field> ptm -otx_all -mdnlk_framed

field> power -otxch1 -p40

4. After keying the Base Radio, verify the forward and reflected powers of

the station along with the station VSWR with the parameters listed in T able 8-41.

Table 8-41 QUAD BR Transmitter Parameters

Parameter Value or Range

Forward Power Gr ea te r th an 36 Watts Reflected Power Less than 4.0 Watts VSWR Less than 2:1

Note The reported value for forward power are not indicative of Base Radio

performance. This value is reported from the internal wattmeter. These limits are only for verification of operation and are not representative of true operational power of the transmitter.

a) At the field > prompt, type:

field> power -otx_all

This command returns all active alarms of the Base Radio.

b) At the field > prompt, type:

field> alarms -ofault_hndlr

alarms command displays alarms, refer to the System

If the Troubleshooting section of this manual for corrective actions.

5. View the spectrum of the transmitted signal on the R2660

Communications Analyzer in the Spectrum Analyzer mode. Figure 8-10 and Figure 8-11 shows a sample of the 800MHz and 900MHz spectrum, respectively.

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QUAD Base Radio Station Verification Procedures

Figure 8-10 800 MHz QUAD Carrier Spectrum

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QUAD Base Radio Station Verification Procedures

Figure 8-11 900 MHz QUAD Carrier Spectrum

6. Dekey the BR to verify no RF power is being transmitted. Set the transmit

DSP test mode to “stop.” At the field> prompt, type:

field> power -otxch1 -p0

field> ptm -otx_all -mstop

field> dpm -otxch1 -mnone

field> dpm -otxch2 -mnone

field> dpm -otxch3 -mnone

field> dpm -otxch4 -mnone

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QUAD Base Radio Station Verification Procedures

Equipment Disconnection

Use the following steps to disconnect equipment after verifying the transmitter.

1. Remove power from the Base Radio by setting the Power Supply rocker

switch (located behind the front panel of the Power Supply) to the OFF (0) position.

2. Disconnect the RS-232 cable from the connector on the service computer.

3. Disconnect the other end of the RS-232 cable from the RS-232 connector

located on the front panel of the BRC.

CAUTION

Make sure power to BR is OFF before disconnecting transmitter RF connectors. Disconnecting transmitter RF connectors while the BR is keyed may result in RF burns from arcing.

4. Disconnect the test cable from the PA OUT connector located on the

backplane of the Base Radio.

5. Connect the standard equipment cable to the PA OUT connector.

6. Disconnect the 10 dB attenuator from the other end of the test cable.

7. From the attenuator, disconnect the cable to the R2660

Communications Analyzer.

8. Restore power to the Base Radio by setting the Power Supply rocker

switch to the ON (1) position.

9. If necessary, continue with the Receiver Verification Procedure.

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QUAD Channel BR Backplane

Backplane Connectors

The Base Radio backplane includes all external equipment connections. Table 8-42 lists and describes the backplane connectors.

Table 8-42 QUAD BR Backplane Connectors

Connector Module Description Connector Type

P1 EXBRC Signal

P2 RX1 Signal

P3 RX1 RF 6 coax Harting Harpak

P4 RX2 Signal

P5 RX2 RF 6 coax Harting Harpak

P6 RX3 Signal

P7 RX3 RF 6 coax Harting Harpak

168 Pin AMP Z-Pack Futurebus

72 Pin AMP Z-Pack Futurebus

P8 RX4 Signal

P9 RX4 RF 6 coax Harting Harpak P10 PA Signal 96 Pin EURO

P11 PS Signal & Power

P12*

P13 EX RF(EX from PA) SMA blindmate P14 EX RF(EX to PA) SMA blindmate P15 External / EXBRC Ethernet BNC blindmate

P16 External / PA

P17 External / PA RF (PA to EX) SMA Blindmate P18 External / PA TX Output SMA blindmate P19 RX Branch 1 RF SMA

-48 Vdc Power In

RF (PA from EX)

72 Pin AMP Z-Pack Futurebus

78 Pin AMP Teledensity

8 Pin AMP 530521-3

SMA blindmate

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QUAD Channel BR Backplane

Table 8-42 QUAD BR Backplane Connectors

Connector Module Description Connector Type

P20 RX Branch 2 RF SMA P21 RX Branch 3 RF SMA P22**

External RS232 Dsub-9 P23 External Alarm Dsub-25 P24 External 5MHz/1PPS BNC

Note * P12 is a cutout in the backplane with threaded inserts for securing

the connector which mates directly to the power supply.

Note ** P22 will not be placed on the backplane. However, the backplane

shall be designed with P22 to allow for reuse on future products.

Figure 8-14 shows the locations of the QUAD Base Radio external connections.

Figure 8-14 QUAD Base Radio Backplane Connectors

GROUND

RX 3

(YEL)

AC POWER

RX 2

(GRN)

RX 1

(RED)

RS 232 ALARM

This port must be terminated by 50Ω load when configured for

2 Branch Diversity. Also, the rx_fru_config parameter must be set to R12.

Enhanced Base Transceiver System (EBTS)

5MHZ/1 PPS

PA O UT

DC POWER

ETHERNET

PA F B

BLACK

EX FB

EX OUT

PA I N

EBTS327Q 112501JNM

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QUAD Channel BR Backplane

QUAD BR Backplane Connector Pinouts

T able 8-43 lists the pin-outs for the Base Radio Controller board’s 168-pin P1 connector.

Table 8-43 EXBRC P1 Pinout, Signal and Power

Row A B C D

1GND 3.3 Vdc3.3 VdcNC 2 GND 3.3 Vdc 14.2 Vdc 14.2 Vdc 3 GN D 3.3 Vdc 14 .2 Vd c 14.2 Vdc 4 GND GND GND GND 5NCNCNCNC 6 GND GND GND GND 7 GND 16.8MHz_RX 16.8MHz_RX_RTN GND 8 GND GND GND GND

9 GND 5 MHz/1 PPS 3.3 Vdc 3.3 Vdc 10 NC NC NC 3.3 Vdc 11 TxD CTS DTR BRG 12 RTS RxD DSR CD 13 NC NC NC 3.3 Vdc 14 NC NC SHUTDOWN_ SLEEP_ 15 PA_ENABLE NC 28.6 Vdc 14.2 Vdc 16 NC NC NC 3.3 Vdc 17 EXT_GPI_1_ EXT_GPI_2_ EXT_GPO_1_ EXT_GPO_2_ 18 BAT_STAT_ MTR_STAT_ EXT_VFWD EXT_VREV 19 SPI_M3 SPI_M2 SPI_M1 SPI_M0 20 SPI_ENABLE SPI_MOSI SPI_MISO SPI_CLK 21 SPI_A2 SPI_A1 SPI_A0 WP_ 22 NC RxRESET_ NC NC 23 NC Clock_SyncB_ NC NC 24 GND GND 3.3 Vdc 3.3 Vdc 25 SSI_Data_D SSI_CLK_D SSI_FS_D 3.3 Vdc

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QUAD Channel BR Backplane

Table 8-43 EXBRC P1 Pinout, Signal and Power (continued)

Row A B C D

26 SSI_Data_D_RTN SSI_CLK_D_RTN NC 3.3 Vdc 27 GND GND 3.3 Vdc 3.3 Vdc 28 DSPIb_MOSI DSPIb_CLK DSPIb_EN_1 DSP Ib_EN_2 29 DSPIb_MOSI_RTN DSPIb_CLK_RTN DSPIb_EN_3 NC 30 GND GND 3.3 Vdc 3.3 Vdc 31 GND SSI_Data_C SSI_CLK_C SSI_FS_C 32 GND SSI_Data_C_RTN SSI_CLK_C_RTN NC 33 NC Clock_SyncA_ NC NC 34 GND GND 3.3 Vdc 3.3 Vdc 35 SSI_Data_B SSI_CLK_B SSI_FS_B 3.3 Vdc 36 SSI_Data_B_RTN SSI_CLK_B_RTN NC 3.3 Vdc 37 GND GND 3.3 Vdc 3.3 Vdc 38 DSPIa_MOSI DSPIa_CLK DSPIa_EN_1 DSP Ia_EN_2 39 DSPIa_MOSI_RTN DSPIa_CLK_RTN DSPIa_EN_3 NC 40 GND GND 3.3 Vdc 3.3 Vdc 41 GND SSI_Data_A SSI_CLK_A SSI_FS_A 42 GND SSI_Data_A_RTN SSI_CLK_A_RTN NC

Table 8-44 EXBRC P13 Pinout, Exciter from PA

Coaxial Description

Center PA IN

Outer GND

Table 8-45 EXBRC P14 Pinout, Exciter to PA

Coaxial Description

Center PA Feedback

Outer GND

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QUAD Channel BR Backplane

Table 8-46 EXBRC P15 Pinout, Ethernet

Coaxial Description

Center Ethernet

Outer GND

RX1 Connections

Table 8-47 RX1 P2 Pinout, Signal and Power

Row A B C D

1 NC GND GND Clock_SyncA_

2 GND

3 GND DSPIa_MOSI DSPIa_CLK DSPIa_EN_2

4 GND GND GND GND

5 14.2 SSI_CLK_A_RTN SSI_FS_B SSI_CLK_B_RTN

6 14.2 SSI_CLK_A SSI_FS_A SSI_CLK_B

7 14.2 GND GND GND

8 14.2 SSI_Data_A_RTN GND SSI_Data_B

9 GND SSI_Data_A GND SSI_Data_B_RTN 10 GND NC NC NC 11 3.3 RxRESET_ GND (ID0) GND (ID1) 12 3.3 WP_ SPI_A0 SPI_A1 13 3.3 SPI_MISO SPI_CLK SPI_A2 14 GND SPI_M0 SPI_ENABLE SPI_MOSI 15 GND SPI_M1 SPI_M2 SPI_M3

DSPIa_MOSI_RT N

DSPIa_CLK_RTN DSPIa_EN_1

16 GND GND GND NC 17 GND 16.8MHz_RX GND NC (WB switch)

18 GND

16.8MHz_RX_RT N

GND NC (MC switch)

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QUAD Channel BR Backplane

Table 8-48 RX1 P3 Pinout, RF Input and Output Connection

Row A B C D E

1 GND - GND - G ND 2 - RX3_EXP3 - RX1_EXP3 3 GND - GND - G ND 4 GND - GND - GND 5 - RX2_EXP2 - RX1_EXP2 6 GND - GND - GND 7 GND - GND - G ND 8 - RX Branch 1 - RX1_EXP1 9 GND - GND - GND

RX2 Connections

Table 8-49 RX2 P4 Pinout, Signal and Power

Row A B C D

1 NC GND GND Clock_SyncA_

2 GND DSPIa_MOSI_RTN DSPIa_CLK_RTN DSPIa_EN_3

3 GND DSPIa_MOSI DSPIa_CLK DSPIa_EN_2

4 GND GND GND GND

5 14.2 SSI_CLK_B_RTN NC NC

6 14.2 SSI_CLK_B SSI_FS_B NC

7 14.2 GND GND GND

8 14.2 SSI_Data_B_RTN GND NC

9 GND SSI_Data_B GND NC 10 GND NC NC NC 11 3.3 RxRESET_ NC (ID0) GND (ID1) 12 3.3 WP_ SPI_A0 SPI_A1 13 3.3 SPI_MISO SPI_CLK SPI_A2 14 GND SPI_M0 SPI_ENABLE SPI_MOSI

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QUAD Channel BR Backplane

Table 8-49 RX2 P4 Pinout, Signal and Power (continued)

Row A B C D

15 GND SPI_M2 SPI_M1 SPI_M3 16 GND GND GND NC 17 GND 16.8MHz_RX GND NC (WB switch) 18 GND 16.8MHz_RX_RTN GND NC (MC switch)

Table 8-50 RX2 P5 Pinout, RF Input and Output Connection

Row A B C D E

1 GND - GND - GND

2 - RX3_EXP2 - RX2_EXP3 -

3 GND - GND - GND

4 GND - GND - GND

5 - RX1_EXP1 - RX2_EXP2 -

6 GND - GND - GND

7 GND - GND - GND

8 - RX Branch 2 - RX2_EXP1 -

9 GND - GND - GND

RX3 Connections

Table 8-51 RX3 P6 Pinout, Signal and Power

Row A B C D

1 NC GND GND Clock_SyncB_

2 GND DSPIb_MOSI_RTN DSPIb_CLK_RTN DSPIb_EN_1

3 GND DSPIb_MOSI DSPIb_CLK DSPIb_EN_2

4 GND GND GND GND

5 14.2 SSI_CLK_C_RTN SSI_FS_D SSI_CLK_D_RTN

6 14.2 SSI_CLK_C SSI_FS_C SSI_CLK_D

7 14.2 GND GND GND

8 14.2 SSI_Data_C_RTN GND SSI_Data_D

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QUAD Channel BR Backplane

Table 8-51 RX3 P6 Pinout, Signal and Power (continued)

Row A B C D

9 GND SSI_Data_C GND SSI_Data_D_RTN 10 GND NC NC NC 11 3.3 RxRESET_ GND (ID0) NC (ID1) 12 3.3 WP_ SPI_A0 SPI_A1 13 3.3 SPI_MISO SPI_CLK SPI_A2 14 GND SPI_M2 SPI_ENABLE SPI_MOSI 15 GND SPI_M1 SPI_M0 SPI_M3 16 GND GND GND NC 17 GND 16.8MHz_RX GND GND (WB switch) 18 GND 16.8MHz_RX_RTN GND NC (MC switch)

Table 8-52 RX3 P7 Pinout, RF Input and Output Connection

Row A B C D E

1GND-GND-GND

2 - RX1_EXP2 - RX3_EXP3 -

3GND-GND-GND

4 GND - GND - GND

5 - RX2_EXP1 - RX3_EXP2 -

6 GND - GND - GND

7GND-GND-GND

8 - RX Branch 3 - RX3_EXP1 -

9GND-GND-GND

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QUAD Channel BR Backplane

RX4 Connections

Table 8-53 RX4 P8 Pinout, Signal and Power

Row A B C D

1 NC GND GND Clock_SyncB_

2 GND DSPIb_MOSI_RTN DSPIb_CLK_RTN DSPIb_EN_3

3 GND DSPIb_MOSI DSPIb_CLK DSPIb_EN_2

4 GND GND GND GND

5 14.2 SSI_CLK_D_RTN NC NC

6 14.2 SSI_CLK_D SSI_FS_D NC

7 14.2 GND GND GND

8 14.2 SSI_Data_D_RTN GND NC

9 GND SSI_Data_D GND NC 10 GND NC NC NC 11 3.3 RxRESET_ NC (ID0) NC (ID1) 12 3.3 WP_ SPI_A0 SPI_A1 13 3.3 SPI_MISO SPI_CLK SPI_A2 14 GND SPI_M0 SPI_ENABLE SPI_MOSI 15 GND SPI_M3 SPI_M2 SPI_M1 16 GND GND GND NC 17 GND 16.8MHz_RX GND NC (WB switch) 18 GND 16.8MHz_RX_RTN GND GND (MC switch)

Table 8-54 RX4 P9 Pinout, RF Input and Output Connection

Row A B C D E

1 GND - GND - GND 2 - RX1_EXP3 - NC 3 GND - GND - GND 4 GND - GND - GND 5 - RX2_EXP3 - NC -

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QUAD Channel BR Backplane

Table 8-54 RX4 P9 Pinout, RF Input and Output Connection

Row A B C D E

6 GND - GND - GND 7 GND - GND - GND 8 - RX3_EXP1 - NC 9 GND - GND - GND

PA Connections

Table 8-55 QUAD BR PA P10 Pinout, Signal and Power

Row A B C

1 SPI_ENABLE GND 28.6 Vdc

2 GND GND 28.6 Vdc

3 SPI_A0 GND 28.6 Vdc

4 GND GND 28.6 Vdc

5 SPI_A1 GND 28.6 Vdc

6 GND GND 28.6 Vdc

7 SPI_A2 GND 28.6 Vdc

8 GND GND 28.6 Vdc

9 SPI_M0 GND 28.6 Vdc 10 GND GND 28.6 Vdc 11 SPI_M1 GND 28.6 Vdc 12 GND GND 28.6 Vdc 13 SPI_M2 GND 28.6 Vdc 14 GND GND 28.6 Vdc 15 SPI_M3 GND 28.6 Vdc 16 GND GND 28.6 Vdc 17 SPI_MISO GND 28.6 Vdc 18 GND GND 28.6 Vdc 19 SPI_MOSI G ND 28.6 Vdc 20 GND GND 28.6 Vdc

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QUAD Channel BR Backplane

Table 8-55 QUAD BR PA P10 Pinout, Signal and Power (continued)

Row A B C

21 SPI_CLK GND 28.6 Vdc 22 GND 3.3 Vdc 28.6 Vdc 23 WP* 3.3 Vdc 2 8. 6 Vdc 24 GND GND 28.6 Vdc 25 PA_ENABLE GND 28.6 Vdc 26 GND 14.2 Vdc 28.6 Vdc 27 GND 14.2 Vdc 28.6 Vdc 28 GND 14.2 Vdc 28.6 Vdc 29 GND 14.2 Vdc 28.6 Vdc 30 GND 28.6 Vdc 28.6 Vdc 31 GND 28.6 Vdc 28.6 Vdc 32 GND 28.6 Vdc 28.6 Vdc

Table 8-56 EXBRC P16 Pinout, PA from Exciter

Coaxial Description

Center PA IN

Outer GND

Table 8-57 EXBRC P17 Pinout, PA to Exciter

Coaxial Description

Center PA Feedback

Outer GND

Table 8-58 EXBRC P18 Pinout, PA RF OUT

Coaxial Description

Center PA RF OUT

Outer GND

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QUAD Channel BR Backplane

External Connections

Table 8-59 QUAD BR Backplane Coaxial and DC

Signal

P12 -48 Vdc Power P13 EX Out P14 Feedback P15 Ethernet P16 PA In P17 PA Feedback P18 PA RF OUT P19 RX Branch 1 P20 RX Branch 2 P21 RX Branch 3 P24 5 MHz/1 PPS

Table 8-60 QUAD BR Backplane Alarm 25 Pin Dsub (P23)

Alarm Signal

1 EXT_GPI_1_ 2 EXT_GPO_1_ 3GND 4 EXT_GPI_2_ 5 EXT_GPO_2_ 6 7 8

9 10 GND 11 12

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QUAD Channel BR Backplane

Table 8-60 QUAD BR Backplane Alarm 25 Pin Dsub (P23)

Alarm Signal

13 14 15 16 GND 17 BAT_STAT_ 18 MTR_STAT_ 19 EXT_VFWD 20 EXT_VREV 21 GND 22 GND 23 24 25 GND

Table 8-61 QUAD BR Backplane RS-232 9 Pin Dsub (P22)

RS-232 Signal

1CD 2 RxD 3TxD 4 DTR 5GND 6 DSR 7RTS 8 CTS 9BRG*

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QUAD Channel BR Backplane

PS Connections

Table 8-62 QUAD PS Power and Signal (P11)

Pin Description Pin Description Pin Description

1 GND (Plug In) 31 3.3 Vdc 61 SPI_MOSI 2 GND 32 GND 62 SPI_CLK 3 GND 33 GND 63 N.C. 4 28.6 Vdc 34 GND 64 N.C. 5 28.6 Vdc 35 GND 65 N.C. 6 28.6 Vdc 36 GND 66 N.C. 7 28.6 Vdc 37 GND 67 SPI_A0 8 28.6 Vdc 38 GND 68 SPI_A1

9 28.6 Vdc 39 GND 69 SPI_M2 10 28.6 Vdc 40 GND 70 SPI_M3 11 28.6 Vdc 41 GND 71 SPI_M1 12 28.6 Vdc 42 GND 72 SLEEP_ 13 28.6 Vdc 43 GND 73 SPI_M0 14 28.6 Vdc 44 GND 74 WP_ 15 28.6 Vdc 45 GND 75 SPI_A2 16 14.2 Vdc 46 GND 76 GND 17 14.2 Vdc 47 GND 77 GND 18 14.2 Vdc 48 GND 78 GND 19 14.2 Vdc 49 GND 20 14.2 Vdc 50 GND 21 14.2 Vdc 51 GND

2 14.2 Vdc 52 GND 23 14.2 Vdc 53 GND

24 3.3 Vdc 54

25 3.3 Vdc 55 N.C. 26 3.3 Vdc 56 N.C.

NC (FAN CONTROL)

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QUAD Channel BR Backplane

Table 8-62 QUAD PS Power and Signal (P11)

Pin Description Pin Description Pin Description

27 3.3 Vdc 57 SHUTDOWN_

28 3.3 Vdc 58

29 3.3 Vdc 59 SPI_ENABLE 30 3.3 Vdc 60 SPI_MISO

NC (Power sharing)

Table 8-63 QUAD BR 48 Vdc Battery Power (P12)

Pin Description Description Pin

1 + BATTERY + BATTERY 5 2 + BATTERY + BATTERY 6 3 - BATTERY (RTN) - BATTERY (RTN) 7 4 - BATTERY (RTN) - BATTERY (RTN) 8

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QUAD Base Radio Signals

Table 8-64 lists and describes signals for the QUAD Base Radio.

Table 8-64 QUAD Base Radio Signal Descriptions

Signal Name Description Special

28.6 Vdc 28.6 Vdc output from PS

14.2 Vdc 14.2 Vdc output from PS

3.3 Vdc 3.3 Vdc output from PS GND Station Ground

RX Branch 1 RX Branch 1 from RFDS 50 ¾ RX Branch 2 RX Branch 2 from RFDS 50 ¾ RX Branch 3 RX Branch 3 from RFDS 50 ¾

RX1_EXP1 RX1 (branch 1) expansion output 1 50 ¾ RX1_EXP2 RX1 (branch 1) expansion output 2 50 ¾ RX1_EXP3 RX1 (branch 1) expansion output 3 50 ¾ RX2_EXP1 RX2 (branch 2) expansion output 1 50 ¾ RX2_EXP2 RX2 (branch 2) expansion output 2 50 ¾ RX2_EXP3 RX2 (branch 2) expansion output 3 50 ¾ RX3_EXP1 RX3 (branch 3) expansion output 1 50 ¾ RX3_EXP2 RX3 (branch 3) expansion output 2 50 ¾ RX3_EXP3 RX3 (branch 3) expansion output 3 50 ¾

5 MHz/1 PPS 5 MHz/1 PPS reference to the BRC

SPI_ENABLE Host Centric SPI Enable

SPI_MISO Host Centric SPI MISO SPI_MOSI Host Centric SPI MOSI

SPI_CLK Host Centric SPI Clock

SPI_A0 Host SPI Device Address Line A0 SPI_A1 Host SPI Device Address Line A1

SPI_A2 Host SPI Device AddressLine A2 SPI_M0 Host SPI Module Address Line M0 SPI_M1 Host SPI Module Address Line M1

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QUAD Base Radio Signals

Table 8-64 QUAD Base Radio Signal Descriptions (continued)

Signal Name Description Special

SPI_M2 Host SPI Module Address Line M2 SPI_M3 Host SPI Module Address Line M3

WP_ Write Protect (active low)

PA_ENABLE Turns off PA bias with active low

SLEEP_ Sleep signal from PS

SHUTDOWN_ PS reset line from BRC

CD RS232 Carrier Detect RxD RS232 RX Data TxD RS232 TX Data

DTR RS232 Data Terminal Ready

DSR RS232 Data Set Ready

RTS RS232 Request to Send CTS RS232 Clear to Send

BRG Baud Rate Generator

RxRESET_ Reset Signal to RX modules

16.8MHz_RX 16.8 MHz reference to RX differential

16.8MHz_RX_RTN 16.8 MHz reference to RX return differential

Clock_SyncA_ Clock Sync signal to RX1 & RX2

Clock_SyncB_ Clock Sync signal to RX3 & RX4

SSI_Data_A RX Data from RX module 1 differential

SSI_Data_A_RTN RX Data from RX module 1return differential

SSI_Data_B RX Data from RX module 2 differential

SSI_Data_B_RTN RX Data from RX module 2 return differential

SSI_Data_C RX Data from RX module 3 differential

For

Abacus III

For

Abacus III

SSI_Data_C_RTN RX Data from RX module 3 return differential

SSI_Data_D RX Data from RX module 4 differential

SSI_Data_D_RTN RX Data from RX module 4 return differential

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QUAD Base Radio Signals

Table 8-64 QUAD Base Radio Signal Descriptions (continued)

Signal Name Description Special

SSI_CLK_A RX Clock from RX module 1 differential

SSI_CLK_A_RTN RX Clock from RX module 1 return differential

SSI_CLK_B RX Clock from RX module 2 differential

SSI_CLK_B_RTN RX Clock from RX module 2 return differential

SSI_CLK_C RX Clock from RX module 3 differential

SSI_CLK_C_RTN RX Clock from RX module 3 return differential

SSI_CLK_D RX Clock from RX module 4 differential

SSI_CLK_D_RTN RX Clock from RX module 4 return differential

SSI_FS_A RX Frame Sync from RX module 1 SSI_FS_B RX Frame Sync from RX module 2 SSI_FS_C RX Frame Sync from RX module 3

SSI_FS_D RX Frame Sync from RX module 4 DSPIa_En_1 DSPa SPI RX1 Abacus enable DSPIa_En_3 DSPa SPI RX2 Abacus enable DSPIa_En_2 DSPa SPI RX1 & RX2 SGC enable DSPIb_En_1 DSPb SPI RX3 Abacus enable DSPIb_En_3 DSPb SPI RX4 Abacus enable DSPIb_En_2 DSPb SPI RX3 & RX4 SGC enable

DSPIa_MOSI DSPa SPI MOSI differential

DSPIa_MOSI_RTN DSPa SPI MOSI return differential

DSPIb_MOSI DSPb SPI MOSI differential

DSPIb_MOSI_RTN DSPb SPI MOSI return differential

DSPIa_CLK DSPa SPI Clock differential

DSPIa_CLK_RTN DSPa SPI CLK return differential

DSPIb_CLK DSPb SPI Clock differential

DSPIb_CLK_RTN DSPb SPI CLK return differential

MTR_STAT_ External Wattmeter Status

BAT_STAT_ Battery Status

EXT_VFWD External Wattmeter Forward meter

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QUAD Base Radio Signals

Table 8-64 QUAD Base Radio Signal Descriptions (continued)

Signal Name Description Special

EXT_VREV External Wattmeter Reflected meter EXT_GPO_1_ General purpose output 1 EXT_GPO_2_ General purpose output 2

EXT_GPI_1_ General purpose input 1 EXT_GPI_2_ General purpose input 2

NC Not connected reserved

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Appendix A

Parts and Suppliers

In This Chapter

Topic

Overview ...................................................................................... A-2

Surge Arrestors ............................................................................ A-3

RF Attenuators ............................................................................. A-5

Emergency Generator .................................................................. A-7

Portable Generator Connection ................................................... A-8

Site Alarms ................................................................................... A-9

Cabinet Mounting Hardware ....................................................... A-11

Cable Connections ..................................................................... A-12

Battery System Connections ...................................................... A-13

Intercabinet Cabling ................................................................... A-16

Equipment Cabinet Power Connections ..................................... A-18

Other Recommended Suppliers ................................................. A-20

Spare Parts Ordering ................................................................. A-22

See Page

Enhanced Base Transceiver System (EBTS)

16-June-06 68P80801E35-E A-1

Motorola 89FC5798 P Users manual

Specifications and Main Features

Frequently Asked Questions

User Manual