GE MDS 4710M Installation And Operation Manual

Text of GE MDS 4710M User Guide:

• GE MDS 4710M, 68 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B Front Panel The front panel is secured to the chassis with spring-loaded latches. To remove the panel, simply pull out at the bottom edge until it is free from the chassis (Figure 31). You will also need to disconnect the modular cable from the back of the panel. Reverse these steps to re-install the front panel on the chassis. Invisible place holder Figure 31. Front Panel Removal Internal Duplexer The internal duplexer allows the radio to transmit and receive at the same time using one antenna. NOTE: The radio contains either an internal duplexer for full duplex op

• GE MDS 4710M, I-2 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B INIT (reset customer-programmable settings) 35 KEY (activate transmitter). See also DKEY command 35 LOG (display/clear history of system events) 36 MODE (display whether master or remote) 36 MODEL (display radio model number) 36 MODEM (set modem speed) 36 NMASK (classify minor alarm events). See also AMASK command 36 OPT! (list installed radio options) 37 OWM command (set/display text message) 37 OWN command (set/display text message) 37 owner and radio information, PC 28 PC, summarized 24–28 PROG

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 19 Diagnostics A 9-pin, D-type port on the radio’s rear panel provides system diagnostics information. The DIAGNOSTIC PORT is used to control and perform diagnostics on the radio system from a connected computer. The communication speed between the computer and radio is 9600 bps. Figure 14 shows the EIA-574 (9-pin EIA-232) pin functions of the DIAGNOSTIC PORT as viewed from the radio’s rear panel. Connection to J1 can be made with a DB-9 male connector, available from many electronics distributors. Invisible place holder Figure 14. J1

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 33 DATAKEY [ON/OFF] This command displays or sets the keying mode. In key-on-data mode, the radio will automatically key itself whenever input data arrives on the DB25 port. In key-on-RTS mode, the radio will only key in response to an RTS or PTT signal (or the KEY command). Entering the DATAKEY command alone shows whether the keying mode is key-on-data (ON) or key-on-RTS (OFF). Entering the DATAKEY command followed by a parameter controls whether or not the radio will automatically key on receipt of data. The ON parameter sets the radio to key-on-data mode. The OFF parameter sets the radio to key-on-RTS mode.

• GE MDS 4710M, 14 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B Invisible place holder Figure 9. View of Power Connector (Rear Panel) 4.4 Battery Power A backup battery is installed in AC-powered master stations. To prevent the battery from becoming discharged during shipment, it is left disconnected at the factory. It must be re-connected at the time of installation to activate the radio's battery backup feature. The only tool required to perform this procedure is a Phillips screwdriver.

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 9 • An antenna location that provides an unobstructed path to all the remote radios in the system • A source of adequate and stable primary power • Suitable entrances for antenna, interface or other required cabling. These requirements can be quickly determined in most cases. A possible exception is the first item—verifying that an unobstructed transmission path exists. UHF radio signals travel primarily by line-of-sight, and obstructions between the sending and receiving stations will affect system performance. If you are not familiar with the effects of terrain and other obstructions on radio tra

• GE MDS 4710M, 62 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B Transmitter Status This screen displays the transmitter state. “Keyed” means the transmitter is set to transmit; “dekeyed” means the transmitter is prevented from transmitting. The transmitter can be keyed or dekeyed by selecting Manual Key from the Configuration menu (page 56). This setting is used when working on the radio, and the radio must be keyed to evaluate transmitter output power. Show Temperature and Voltages This screen displays the radio’s internal temperature and voltages. The inp

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 39 RSSI is a “raw” signal level indicator, continuously updated in real time at about a 1 second interval. The RSSI command causes the diagnostic port to enter an RSSI update mode. The diagnostic port will display an updated RSSI output line at roughly a 2 second interval refresh rate. The diagnostic port will stay in this mode until you press the Enter key at the PC. The RSSI! command provides a one-time reading and display of RSSI at the diagnostic port. RTU [ON/OFF/0-80] This command enables or disables the radio’s internal RTU simulator, which runs with GE MDS’ proprie

• GE MDS 4710M, 4 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B Basic MAS Master Station Operation Figure 2 shows a typical point-to-multipoint system using an MDS 4790M master station. The most basic system consists of a central master station and several associated remote units, as shown in Figure 2. Figure 2. Typical MAS Network Repeater and Polling Remote Operation An MAS system using repeater and polling-remote radios is shown in Figure 3. Notice that the polling remote radio is operating in half-duplex mode and the repeater is operating in full-dupl

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 27 Table 6. PC Commands—Diagnostics PC COMMAND FRONT PANEL MENU DESCRIPTION ALARM Details, page 28 Active Radio Status Details, page 61 Display current alarm status in hexadecimal format DKEY Details, page 33 Manual Key Details, page 56 Disable the transmitter DLINK [ON/OFF/xxxx] Details, page 33 Enable or disable network-wide diagnostics and set the baud rate at the RJ-11 DIAG port. DMGAP [xx] Details, page 34 Set the amount of time to wait after the receipt of a character before interpreting the next

• GE MDS 4710M, 32 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B The setting of this parameter affects the timing of received data sent out the DATA INTERFACE connector. Data transmitted over the air by the radio is unaffected by the BUFF setting. If data buffering is set to OFF, the radio will operate with the lowest possible average latency. Data bytes are sent out the DATA INTERFACE port as soon as an incoming RF data frame is disassembled. Average and typical latency will both be below 10 ms, but idle c

• GE MDS 4710M, 56 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B RX Timeout [NONE, 1-1440] This screen is used to set or display the RX Timeout Timer duration. This is the amount of time to wait (in minutes) after the last data receipt before switching over to the stand-by transceiver board and generating an alarm. To change the duration, press ENTER, then use the left/right arrow buttons to select the digit to change. Then use the up/down arrow buttons to increase or decrease the digit. Repeat for the other digit if necessary. Press ENTER again to

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 53 GROUP 1—MAIN SCREENS Start-up Screen When the radio is first powered on, or after a period of time has elapsed after the last button press, the front panel display shows the start-up screen. The start-up screen displays the product model number, as well as the owner’s name and message. (Typically, customers use the owner name and message fields to display the system and site name.) The screen dims after a period of time has elapsed without any activity; brightness can be restored by pressing any butto

• 48 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B Displaying the individual menu screens When the selection arrow points to the desired menu, press the right or left arrow buttons to cycle the display through the screens of that menu. Each button press displays a new screen, until the entire menu has been traversed and the menu directory is redisplay

• GE MDS 4710M, 50 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B • Display receive signal strength •Display S/N ratio • Set/display active transceiver board selection • Display transmitter state (keyed, dekeyed) • Display internal temperature and voltages • Display radio serial number(s) for the A and B transceiver boards • Display software revision level Group 4—Event Log (page 62) The event log displays up to 800 of the most recent operating changes. These events include system problems, as well as normal operator actions such as turning the power on or off. The screens in this group are: • Display event

• GE MDS 4710M, I-6 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B Q Quick start instructions. See inside front cover R Radio accessories 5 description 1 display model number (PC command) 36 display serial number (SER command) 40 display software revision number (Software Revision screen) 62 display transmitter state (LCD screen) 62 illustrated 2 key features 5 model number codes 6 model number codes, illustrated 6 removing antenna switch module 70 removing internal duplexer 68 removing or re-installing front panel 68 set date (LCD screen) 60 set time (LCD screen) 60 set/display

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 17 A Type N connector is required to connect the feedline to the radio. The feedline connectors must be installed in accordance with the manufacturer’s instructions. Follow the manufacturer’s recommendations for weatherproofing connectors that will be installed outdoors. If large-diameter, semi-rigid coaxial cable is used for the feedline, insert a short length of 1/4 inch Superflex TM Cable (GE MDS P/N 97-1677A28) or other low-loss flexible cable between the radio and the feedline. This flexible i

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 47 Programming and Control Buttons The programming and control buttons are located at the far right side of the front panel. They are used to navigate through the front panel screens and, when the front panel display is in configuration mode, to make changes to radio operating parameters. Figure 23 shows a detailed view of these controls. Invisible place holder Figure 23. Programming and Control Buttons • ENTER—When the start-up screen is displayed, pressing this button displays the Menu Dire

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide iii RXPAD [ON/OFF].............................................................................40 RXTOT [NONE, 1-1440]...................................................................40 SCD [0-255]......................................................................................40 SER ..................................................................................................40 SHOW [DC/PWR/CURRENT/RADIO]..............................................40 SNR, SNR! .................

• GE MDS 4710M, QUICK START GUIDE 1. Install and connect the antenna system to the radio (page 10). • Use an appropriate antenna aimed at the associated station. • Use low-loss feedline suited for 400 MHz. Keep the feedline as short as possible. 2. Connect the backup battery, if equipped (page 14). 3. Connect the host computer to the DATA connector on the rear panel (page 17). 4. Verify proper input voltage level and connect power to the radio. Set the power switch(es) to ON. 5. Observe front panel indicators for proper operation. Invisible place holder ACTIVE (green)—This transceiver board (A or B) is the selected unit. STBY (yellow)

• MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 71 7.4 Cooling Fan Maintenance The radio uses cooling fans to cool the main transceiver boards. To ensure that the fans operate correctly, inspect them on a regular basis and keep them clear of dust (Figure 35). Figure 35. Location of Cooling Fan

• MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 3 2.1 Network-Wide Diagnostics Newer GE MDS remote and master station radios, including the MDS 4790M, offer network-wide diagnostics capability. Network-wide diagnostics communications is a modern, packetized mode that has several advantages over DTMF diagnostics communications (used by older GE MDS radios): •

• GE MDS 4710M, 28 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B 6.3 Detailed Command Descriptions This section gives more detailed information for most of the commands listed in the previous tables. The commands are cross-referenced to descriptions of corresponding commands entered using the front panel display and control buttons using the graphic at left. Most commands can be used in two ways. Typing only the command: RADIO displays the current information. Typing the command, followed by a space and a parameter: RADIO B changes a radio setting. Parameters and their meanings are provided in the detailed command descriptions. AL

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide i TABLE OF CONTENTS 1.0 INTRODUCTION ......................................................................... 1 2.0 PRODUCT DESCRIPTION ......................................................... 1 2.1 Network-Wide Diagnostics ...............................................................3 2.2 Redundant versus Non-redundant Operation ..................................3 2.3 Applications .........................................................

• 34 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B •1200 •2400 •4800 •9600 • 19200 (default setting) Example: DLINK 4800 sets the RJ-11 DIAG port to operate at 4800 bps. The same baud rate must be entered into the InSite Equipment List’s BAUD field. The default setting is DLINK ON. DMGAP [xx] The DMGAP command sets the amount of time in milliseconds to w

• 78 MDS 4790M (MPT 1411) I/O Guide MDS 05-3628A01, Rev. B 24 457.79375 457.80000 463.29375 463.30000 25 457.80625 457.81250 463.30625 463.31250 26 Y 457.81875 457.82500 463.31875 463.32500 27 Y 457.83125 457.83750 463.33125 463.33750 28 457.84375 457.85000 463.34375 463.35000 29 Y 457.85625 457.86250 463.35625 463.36250 30 457.86875 457.87500 463.36875 463.37500 31 Y 457.88125 45

• IN CASE OF DIFFICULTY... GE MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment may have an occasional component failure. The following information will assist you in the event that servicing becomes necessary. FACTORY TECHNICAL ASSISTANCE Technical assistance for our products is available from o

• GE MDS 4710M, MDS 05-3628A01, Rev. B MDS 4790M (MPT 1411) I/O Guide 35 Pre-emphasis is a function used in older analog radios where the modulating signal is increased (at the transmitter) at the higher frequencies to increase system performance. De-emphasis compensates (at the receiver) for a signal that has had pre-emphasis applied. ON indicates that pre-emphasis and de-emphasis are enabled, and OFF indicates that pre-emphasis and de-emphasis are disabled. HREV This command displays the hardware revision level. INIT This command resets customer-programmable settings

More Instructions:

	GE MDS 4710M Setup manual 13-07-2023 6	DOWNLOAD
	GE MDS 4710M Technical manual 27-09-2022 64	DOWNLOAD
	GE MDS 4710M Setup manual 30-11-2022 6	DOWNLOAD
	GE MDS 4710M Technical manual 07-07-2023 113	DOWNLOAD

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