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Tait T858 User Manual

Tait T858
370 pages
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M850-00
1
Copyright TEL 31/09/98
T850 Series II
Base Station Equipment
400-520MHz
Service Manual
Issue 200
October 1998
M850-00-200

Table of Contents

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Tait T858 Specifications

General IconGeneral
BrandTait
ModelT858
CategoryAccessories
LanguageEnglish

Summary

Part A Introduction To Servicing

1 General

General information, technical data, and cautions.

2 Mechanical

Information on screw types, disassembly, and cover screw torques.

3 Component Replacement

Methods for removing and replacing leaded components on PCBs.

4 Software History

History of PGM800Win software versions.

Part B T855 Receiver

1 General Information

Brief description of the T855 receiver and types available.

2 Circuit Operation

Description of the circuit operation of the T855 receiver.

3 Initial Tuning & Adjustment

Procedures for tuning and adjusting the T855 receiver.

4 Functional Testing

Test procedures to confirm T855 operation and adjustment.

5 Fault Finding

Procedures and flow charts for locating hardware problems.

6 PCB Information

Information on PCBs, including parts lists and layouts.

Part C T856 Transmitter & T857 Exciter

1 General Information

Brief description of T856 transmitter and T857 exciter.

2 Circuit Operation

Description of circuit operation for T856 transmitter and T857 exciter.

3 Initial Tuning & Adjustment

Procedures for tuning and adjusting T856/857.

4 Functional Testing

Test procedures to confirm T856/857 operation and adjustment.

5 Fault Finding

Procedures and flow charts for locating hardware problems.

6 PCB Information

Information on PCBs, including parts lists and layouts.

Part D T858 & T859 Power Amplifiers

1 General Information

Brief description of T858 & T859 power amplifiers.

2 Circuit Operation

Description of circuit operation for T858 and T859 power amplifiers.

3 Initial Adjustment

Procedures for initial adjustment of T858/859.

4 Fault Finding

Procedures and flow charts for locating hardware problems.

5 PCB Information

Information on PCBs, including parts lists and layouts.

Part E T850 VCO PCB Information

1 Introduction

Introduction to T850 VCO PCB information.

2 T850 VCO PCB

Information on T850 VCO PCB, including parts lists and layouts.

Part F Installation

1 T855 Installation

Basic rack mounting and wiring procedures for T855 receiver.

2 T856/857 Installation

Basic rack mounting and wiring procedures for T856/857 transmitter/exciter.

3 T858/859 Installation

Basic rack mounting and wiring procedures for T858/859 power amplifiers.

Part G System Configurations

1 T855 Link Selectable Features

Features of the T855 that can be configured via links.

2 T856/857 Optional Features

Optional features for T856/857 that provide system flexibility.

3 Talk Through Repeater

Description of the talk-through repeater configuration.

4 Line Controlled Base Without Talk Through

Configuration for line-controlled base stations without talk-through.

5 DC Line Keying

Methods for remote control of functions using DC loop keying.

Part H T800 Ancillary Equipment

Programming Kits

Description of programming kits for T800 Series II equipment.

General Ancillaries

Description of ancillary equipment like coaxial relays and test units.

Paging

Information on DFSK modulators for paging data formats.

External Frequency Reference

Description of kits for external frequency reference input.

Rack Frames

Description of standard 5U high rack frames for T800 Series II modules.

Rack Frame Guides

Description of rack frame guides for mounting modules.

Rack Frame PCBs

Description of backplane PCBs for T800 Series II rack frames.

Rack Frame Ancillaries

Description of ancillary equipment for rack frames.

Front Panels

Description of available front panels for T800 Series II equipment.

Power Supplies

Description of mains power supplies for T800 Series II equipment.

Part I Using T850 Series II Equipment In A Series I Rack Frame

1 Tools Required

List of tools required for the conversion procedure.

2 T855/856/857 SII - SI Conversion

Modifications to enable T850 Series II equipment to operate in Series I rack frames.

3 T858/859 SII - SI Conversion

Modifications to enable T850 Series II PA to operate in Series I rack frames.

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