Remote Connector And Pinouts (J6); Table 2-2. Remote Connector And Pinouts (J6) - Comtech EF Data SDM-300A Installation And Operation Manual

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