User's Manual

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Table Of Contents

Front Page
Contents
Figures
New Features in OMT32 Version R1A
Abbreviations
Part 1 – Hardware
1. Safety
- Warning Signs
- Static Electricity
2. Introduction
- Repeater Types
- Using Repeaters
  - Shaded Area
  - Sports Arena
3. Installation
- Siting the Repeater
- Dimensions and Weights
- Mounting
- Connection
- Connection Ports and Station Ground
- Mains Breakdown Relay
- Installing 24 Volt or 48 Volt DC Power Supply Unit
4. Commissioning
- Starting the Repeater
  - Indicators
- Measuring the Output Power Level
- Voltage Supply Testpoints
- Repeater Adjustment
5. Functional Description
- Repeater Design
- Block Diagram
- Board and Unit Descriptions
- Cabling
Part 2 – Software
6. OMT32 Installation
- Requirements
- Software Installation
- Program Folder
  - OMT32 Start Icon
  - OMT32 Setup Icon
- Sound at Repeater Alarm Reception
- Automatic OMT32 Recovery
- Screen Saver
- Uninstalling OMT32
- Log File
  - Log File Size
  - Log File Name and Path
- Initial OMT32 Settings
7. Help
- On- Line Help
- Manuals
8. Getting Started
- Preparation
  - Local Connection
  - Remote Connection
- Start Up OMT32
  - OMT32 Main Window
- Connecting Repeater
  - Remote Connection
- Logging On
- Important About the Mouse Buttons
- Main Window After Logging On
9. OMT32 Features
- Connection Parameters
  - Local Connection
  - Remote Connection
- Command Line Interface
  - Command Syntax
  - Command List
- Cellular Calculator
- OMT32 Version
- Exiting OMT32
10. Repeater Operations
- Operational Data in General
  - Modifying Operational Data
  - Active Repeater Part (Combined Repeaters Only)
- Repeater Configuration
- Operational Status
- Testpoints
- Traffic Statistics
- Repeater Boards (CHA/ BSA/ CSA/ PA/ RIA)
- Repeater Software Configuration
- Password and Callback
  - Callback Phone Numbers
- Login Registry
- Repeater Modem Parameters
  - Modem Commands
- Repeater ID
- Repeater Date and Time
- Notepad
- Logging Off
11. Alarms and Events
- Alarm Overview
- Alarm Configuration
- Received Repeater Alarms
  - Disabling/ Enabling Remote Alarm Reception
- Alarm Reset
- Alarm Call Criteria
- Repeater Event Log
- Alarm List
12. Troubleshooting
- Active Alarm
- Modem Debug Tools
  - OMT32 Modem Debug Tool
  - Repeater Modem Debug Tool
- R2R, Communication Problem
- R2R, Advanced Node Configuration
13. Optional
- RCU, Remote Control Unit for GSM 900
- RCU, Remote Control Unit with PCMCIA Modem
- OMS, Operation and Maintenance System
- Traffic Statistics
- Battery Backup
- Fiber Optic Interface
- 7/ 16" Antenna Cable Connectors
- R2R, Repeater To Repeater Link
Appendix A - Menu Reference Guide
- Main Window Button Bar
- Main Menu Reference Guide
Index
Questionnaire

Band Selective Repeater

Figure 5-7 shows a block diagram of a band selective repeater. This

diagram is applicable to repeaters for e.g. NMT, TACS/ETACS and

AMPS/DAMPS systems.

Downlink

The signal from the base station is received via the repeater BS antenna

and is then forwarded through a directional coupler (DC). The signal

passes a duplex filter (DPX), is amplified in a low noise amplifier (LNA),

and enters the band selective amplifier board (BSA).

P32 P31 P33

TEST -30 dB

BSA - DL

PA - DL

LNA - DL

MS -20 dB P27

PA - UL

BSA - UL LNA - UL

DPX

PSU

ALI

RIA

P34

MSC

RCU

ALLGON

ALL

BAND

SELECTIVE

REPEATER

BS antenna

Base station

Telephone

line

Modem

Battery

Power

supply

External alarm

sensors

MS antenna

Figure 5-7. Block diagram, band selective repeater

ALLGON System AB AR Repeaters & OMT32 Hardware – Functional Description

User’s Manual VD202 90/EN Rev. 1A 1999-07 5 - 14