MDS 4710B - Page 2

QUICK START GUIDE
Below are the basic steps for installing the transceiver. Detailed instructions are given in “INSTALLA-
TION” on page 5 of this guide.
1. Install and connect the antenna system to the radio
• Use good quality, low loss coaxial cable. Keep the feedline as short as possible.
• Preset directional antennas in the direction of desired transmission.
2. Connect the data equipment to the radio’s INTERFACE connector
• Connection to the radio must be made with a DB-25 Male connector. Connections for typical sys-
tems are shown below.
• Connect only the required pins. Do not use a straight-through RS-232 cable with all pins wired.
• Verify the data equipment is configured as DTE. (By default, the radio is configured as DCE.)
3. Apply DC power to the radio (10.5–16 Vdc @ 2.5 A minimum)
• Observe proper polarity. The red wire is the positive lead; the black is negative.
4. Set the radio’s basic configuration with a Hand-Held Terminal (HHT)
• Set the transmit frequency ( TX xxx.xxxxx ).
• Set the receive frequency ( RX xxx.xxxxx ).
• If the transceiver will be listening to a switched carrier master station, set switched carrier mode
operation with the SWC command.
• If the modem is 9600 bps, set the data interface parameters as follows. Use the BAUD 9600 abc com-
mand, where 9600 is the data rate and abc are the communication parameters as follows:
a = Data bits (7 or 8)
b = Parity (N for None, O for Odd, E for Even
c = Stop bits (1 or 2)
(Example: BAUD 9600 8N1 )
NOTE: 7N1, 8E2 and 8O2 are invalid parameters and are not supported by the transceiver.
5. Verify proper operation by observing the LED display
• Refer to Table 6 on page 13 for a description of the status LEDs.
• Refine directional antenna headings for maximum receive signal strength using the RSSI command.
DB-25 DB-25
TRANSCEIVER
(DCE)
2
3
2
3
RTU
(DTE)
4
5
20
6DSR
DSR
6
TXD
RXD
GND
RTS
CTS
TXD
RXD
GND
4
CTS
5
RTS
DB-9 DB-25
DB-9 to DB-25 ExampleDB-25 to DB-25 Example
11
4
5
TRANSCEIVER
(DCE)
2
3
3
2
RTU
(DTE)
5
20
7
RXD
TXD
DCD
GND
DSR
RTS
RXD
TXD
DCD
GND
As required for application
5
18
7
6
CTS
DSR
RTS
CTS8
6
4
5
77
GND
GND
8 8
DCD
DCD
As required for application