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GE MDS 4790 Series User Manual

GE MDS 4790 Series
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Installation & Operation Guide
MDS 05-3438A01, Rev. F
SEPTEMBER 2008
400 MHz/900 MHz
Multiple Address System
Master Station Radio
MDS 4790/9790 Series
(including MDS 4790A/C/E/S, MDS 9790A)
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-8457-MDS-UP-9790X.aspx

Table of Contents

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GE MDS 4790 Series Specifications

General IconGeneral
Data RateUp to 115.2 kbps
Frequency Range902-928 MHz
Channel Spacing12.5 kHz, 25 kHz
Power OutputUp to 1 Watt
Operating Voltage+10 to +30 VDC
Operating Temperature-40°C to +70°C
InterfaceRS-232

Summary

Product Description

Network-Wide Diagnostics

Enables remote diagnostics and data collection across the network.

Redundant versus Non-redundant Operation

Explains configurations with one or two transceiver boards for reliability.

Applications

Details uses in MAS and SCADA systems, including MAS network types.

Features

Highlights reliability, one-piece transceiver board, and optional redundancy.

Accessories

Lists optional accessories for expanding radio functionality and integration.

Model Number Codes

Explains how to interpret the radio's hardware and software configuration.

Installation Planning

General Requirements

Outlines essential requirements for radio installation: power, antenna, and interface.

Antenna and Feedline Selection

Guides selection of appropriate antennas and low-loss feedlines for optimal performance.

Installation Procedures

Unpacking and Inspection

Instructions for checking shipment contents and inspecting for damage upon receipt.

Mounting the Radio

Provides guidance on installing the radio in rack or tabletop configurations.

Primary Power

Details options for connecting AC and DC power sources to the radio unit.

Backup Battery

Explains the installation and function of the internal backup battery for power continuity.

Antenna Installation

Covers proper installation of antennas, placement, and feedline connection.

Interface Wiring Connections

Details connections for power, data, alarm, and orderwire ports on the rear panel.

Post Installation Checks

Verifies connections, voltage, and antenna heading before initial power-up.

Start-Up and Operation

Initial Startup

Steps for powering on the radio and initial system indications.

Front Panel Indicators

Explains the meaning and function of front panel LEDs for status monitoring.

Diagnostics and Control

PC Connection

Guides on connecting a PC to the radio for configuration, control, and diagnostics.

PC Command Summaries

Provides an overview of PC commands for radio operation, diagnostics, and information.

Detailed Command Descriptions

Provides in-depth explanations of specific commands for radio configuration and monitoring.

Configuration and Programming using the Front Panel

Explains how to use the front panel controls to configure radio parameters.

Screen Descriptions

Details the various screens accessible via the front panel display.

Replacing Assemblies

Transceiver Board and Power Supply Assemblies

Instructions for removing and installing transceiver boards and power supply modules.

Installation & Removal of Backup Battery

Steps for installing and removing the internal backup battery.

Front Panel

Procedures for removing and re-installing the radio's front panel.

Operating Frequency Change Considerations

Discusses factors affecting performance when changing radio frequencies.

Testing and Removing an Internal Duplexer

Steps for testing and replacing the internal duplexer.

Testing and Removing the Antenna Switch Module

Procedures to test the antenna switch module and identify potential replacement needs.

Cooling Fan Maintenance

Guidance on inspecting and cleaning cooling fans for proper operation.

Radio Software Upgrades

Obtaining New Code

Information on how to download the latest software code from the vendor's website.

Preparing for Download

Steps to prepare software files for radio upgrades, including saving and locating files.

Downloading New Code—Procedure

Detailed steps for performing the software download process to the radio.

Technical Reference

Technical Specifications

Lists detailed technical specifications for the radio models.

RF Propagation Planning

Discusses factors affecting radio wave propagation for link design.

Formulas for System Planning

Provides formulas to assist in determining system installation parameters.

dBm-Volts-Watts Conversion Chart

A chart for converting RF power measurements between dBm, volts, and watts.

In Case of Difficulty...

Technical Assistance

Contact information and details for technical support assistance with GE MDS products.

Factory Service

Guidelines for returning equipment for factory repair, including SRO procedures.

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