GE MDS 4790A Manuals

Manuals and User Guides for GE MDS 4790A. We have 1 GE MDS 4790A manual available for free PDF download: Installation & Operation Manual

GE MDS 4790A Installation & Operation Manual

GE MDS 4790A Installation & Operation Manual (124 pages)

400 MHz/900 MHz Multiple Address System Master Station Radio

Brand: GE | Category: Radio | Size: 1.57 MB

Table of Contents

Quick Start Guide
2
Table of Contents
3
Environmental Information
8
1 Introduction

9
2 Product Description

9
- Network-Wide Diagnostics
  10
- Redundant Versus Non-Redundant Operation
  10
- Applications
  11
- Features
  12
- Accessories
  13
- Model Number Codes
  14
3 Installation Planning

14
- General Requirements
  14
  - Site Selection
    15
  - A Word about Interference
    16
- Antenna and Feedline Selection
  17
  - Antenna System
    17
  - Feedline Selection
    17
4 Installation Procedures

18
- Unpacking and Inspection
  19
- Mounting the Radio
  19
- Primary Power
  21
  - AC-Powered Units
    22
  - DC-Powered Units
    22
- Backup Battery
  23
- Antenna Installation
  25
  - Feedline Installation
    25
- Interface Wiring Connections
  26
  - TX, Antenna, and RX Coaxial Connectors (Type-N)
    26
  - Ground Connection
    29
  - Diagnostics Connector-J1
    29
  - 4-Wire Audio Connector-J2
    30
  - Data Interface Connector-J3
    31
  - Orderwire Connector-J9
    32
  - Alarm Contacts-J10
    32
- Post Installation Checks
  34
5 Start-Up and Operation

34
- Initial Startup
  34
  - Normal Indications
    34
  - Maximizing RSSI
    34
  - Coordinating Activities by Orderwire
    35
- Front Panel Indicators
  35
  - LED Indicators
    36
  - Front Panel Display
    37
6 Diagnostics and Control

38
- PC Connection
  38
- PC Command Summaries
  40
  - Commands and Command Parameters
    41
- Detailed Command Descriptions
  45
  - Alarm
    45
  - Amask [0000 0000-Ffff Ffff]
    48
  - Asense [Hi/Lo]
    49
  - Batt(Ery) [ON/OFF]
    49
  - BAUD [XXXXX Abc]
    50
  - Buff [On/Off]
    50
  - Ckey [On/Off]
    51
  - Cts [0-255]
    51
  - Datakey [On/Off]
    52
  - DATE [MMM DD Yyyy]
    52
  - Dkey
    53
  - DLINK [On/Off/XXXX]
    53
  - DMGAP [XX]
    53
  - Dtype [Node/Root/Gate/Peer]
    54
  - Emp [On/Off]
    54
  - Hrev
    54
  - Init
    54
  - Key
    55
  - Log [Clr]
    56
  - Maddr [None, 1-255]
    56
  - Model
    56
  - Modem [None/4800/9600/19200/Default]
    56
  - Nmask [0000 0000-Ffff Ffff]
    57
  - Opt
    58
  - OWM [XXXXX]
    58
  - OWN [XXXXX]
    58
  - Ptt [0-255]
    58
  - Pwr [20-37]
    59
  - Radio [Auto/A/B]
    59
  - Repeater [On/Off]
    59
  - Rssi, Rssi
    60
  - Rtu [On/Off/0-80]
    60
  - RX [XXX]
    60
  - RXLEVEL [-20 to +3]
    61
  - RXMUTE [On/Off/Time in Msec]
    61
  - Rxpad [On/Off]
    61
  - Rxtot [None, 1-1440]
    61
  - Scd [0-255]
    62
  - Ser
    62
  - Show [DC/Pwr/Current/Radio]
    62
  - Snr, Snr
    63
  - Srev
    63
  - Standby [On/Off]
    64
  - Stat
    64
  - Temp
    65
  - TIME [Hh:MM:ss]
    65
  - Tot [On/Off, 1-255]
    66
  - TX [XXXX]
    66
  - Txgain [On/Off]
    67
  - TXLEVEL [-20 to +3, AUTO]
    67
  - Unit [10000-65000]
    67
- Configuration and Programming Using the Front Panel
  68
- Screen Descriptions
  72
  - Group 1-Startup Screen and Menu Directory
    72
  - Group 2-Configuration Screens
    72
  - Group 3-Diagnostic Screens
    73
  - Group 4-Event Log
    73
    
    Display Contrast
    83
    
    Set Time
    85
    
    Set Date
    85
7 Local & Network-Wide Problem Solving

87
- Local Problem-Solving
  88
- Performing Network-Wide Radio Diagnostics
  92
8 Replacing Assemblies

94
9 Radio Software Upgrades

103
- Obtaining New Code
  103
- Preparing for Download
  104
- Downloading New Code-Procedure
  104
10 Technical Reference

105
- Technical Specifications
  105
- RF Propagation Planning
  107
  - Fresnel Zone Clearance
    108
  - Earth Curvature
    108
  - Fade Margins
    109
  - Calculating Path Loss
    110
- Formulas for System Planning
  110
  - Free Space Path Loss
    110
  - Fresnel Zone Boundary
    110
  - Theoretical Signal Strength
    110
  - Probability of System Fading
    110
- Dbm-Volts-Watts Conversion Chart
  111
- In Case of Difficulty
  123

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