Microwave Data Systems MDS TransNET 900 Installation & Operation Manual page 2

1. Install and connect the antenna system to the transceiver
• Use a high-quality gain antenna, mounted in the clear.
• Use a low-loss feedline such as LMR 400.
• Preset directional antennas in the direction of desired transmission/reception.
2. Connect the data equipment to the radio's DB-9F DATA connector
• Connect only the required pins. EIA-232, shown below, typically uses only
TXD, RXD and GND. (See
• Verify the connected data equipment is configured as DTE. (Radio is DCE.)
DB-25
2
TXD
RXD 3
GND 7
RTS
4
CTS 5
DTR 20
DSR 6
3. Apply DC power to the radio. Use the supplied 2-pin connector
• Input voltage is 6–30 Vdc. Observe proper polarity. The left pin is positive (+)
and the right is negative (–). (See
4. Configure with a PC terminal or TransNET Configuration Software
• Connect computer to radio's DIAG connector. See
• Set the Mode using the MODE M (Master), MODE R (Remote), or MODE X
(Extension) command. (Note: Only one Master is permitted in a system.)
• Set a unique Network Address (1–65000) using ADDR command. Each radio
in the system must have the same network address. Tip: Use the last four
digits of the Master's serial number to help avoid conflicts with other
MDS TransNET 900 networks.
• Set the baud rate/data interface parameters. Default setting is 9600 bps, 8
data bits, no parity, 1 stop bit. If changes are required, use the BAUD xxxxx
abc command where xxxxx equals the data rate (1200–115200 bps) and abc
equals 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)
5. Verify proper operation by observing the LED display
• Refer to Table 4 on Page 19
• Refine directional antenna headings for maximum received signal strength
using the RSSI command. (Remotes must be synchronized with the master.)
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Page 56
DB-9
3 TXD
2 RXD
5 GND
JUMPERS:
Only if required by RTU.
See manual for additional details.
NOTE: 7N1, 8E2 and 8O2 are not supported.
for a description of the status LEDs.
EIA-485 interface connections.)
DB-9
3
TXD
RXD 2
GND
5
DTR
4
DSR 6
RTS 7
CTS 8
Page 16 for details.)
DB-9
TXD
3
2 RXD
5 GND
JUMPERS:
Only if required by RTU.
See manual for additional details.
Page 54 for cable wiring.