Microwave Data Systems MDS 4310, Установка, эксплуатация и техническое обслуживание на месте

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MDS 05-2415A01, Rev. A 2-1
CHAPTER 2—INSTALLATION
DANGER
The MDS 4310-HL Data Transceiver is approved for use in
Class I, Groups ABCD, Division 2, Hazardous Locations.
The installer of these transceivers MUST be familiar with
hazardous location installation guidelines before
installation or maintenance is begun. Do not begin
installation of or make external connections to this device
unless the area is known to be non-hazardous.
Refer to Appendix H of this manual for further information
on the approved conditions under which the MDS 4310-HL
can be installed in hazardous locations.
OVERVIEW
The MDS 4310 data transceiver is designed to be part of a data communications system.
Three critical objectives must be met during the installation—a good antenna system,
adequate stable primary power and the correct interface between the transceiver and the
external data equipment.
MDS 4310 transceivers are shipped with final test data sheets from the Manufacturing Test
Department. The test data sheets contain radio hardware and software configuration
information and actual performance measurements. Included in the data sheets are the
transmit and receive frequency (as measured), receive sensitivity, transmitter power output
and modulation characteristics, as well as pre-programmed loopback code. In most cases, the
transceiver requires no alignment during installation.
The following installation steps are for a typical installation.
1. Install the antenna transmission line, and preset the antenna heading.
2. Mount the transceiver vertically or horizontally on a stable surface.
3. Measure and install the primary power for the transceiver.
4. Verify that the unit serial number and loopback code are the same as found on the
test data sheet.
5. Verify that the transceiver’s operating frequencies are as listed on the operating
license. Check the license against the measured frequencies shown on the test data
sheet.
6. Verify interface requirements and protocol—
If no modem is installed…
• Check the transmit audio input level.
• Check the receive audio output level.
• Check the keyline operating characteristics—Ground or +5 Vdc can be used to
key the transmitter. Make sure the correct pin is wired on the transceiver’s
INTERFACE
connector.