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Installation
2.3.1
Remote Connector and Pinouts (J6)
The remote connector is a 9-pin subminiature female D connector (J6) located on the rear
panel of the modem. Screw locks are provided for mechanical security of the mating
connector.
The remote connector interfaces the M&C functions to a remote location. The remote
location can be an M&C computer located away from the modem, but attached via cable to
the remote connector. This DCE interface is user selectable for either EIA-232 or EIA-484.
Refer to
Refer to Table 2-2 for pinout information.
Pin #
1
2
3
4
5
6
7
8
9
*For 2-Wire Operation:
•
•
•
2–6
Appendix B
for a description of the remote interface commands.
Table 2-2. Remote Connector and Pinouts (J6)
EIA-232
Name
RD (RX)
TD (TX)
GND
DSR
RTS
CTS
Only two wires are required.
Tie pins 4 and 8 together (both +).
Tie pins 5 and 9 together (both -).
Pinout
EIA-485
Name
Pin #
(2-Wire)
1
GND
2
3
4*
+RX/TX
5*
-RX/TX
6
7
8*
+RX/TX
9*
-RX/TX
SDM-300A Satellite Modem
Name
(4-Wire)
+TX
-TX
+RX
-RX
Rev. 4
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