Connector Description; Remote Connector And Pinouts (J6); Table 3-2. Remote Connector And Pinouts (J6) - Comtech EF Data SDM-300L3 Installation And Operation Manual

SDM-300L3 Satellite Modem
Connector Pinouts
Note: The European EMC Directive (EN55022, EN50082-1) requires using properly shielded
cables for DATA I/O. These cables must be double-shielded from end-to-end, ensuring a
continuous ground shield.
3.2

Connector Description

3.2.1

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 Table 3-2 for pinout information.
Pin #
1
2
3
4
5
6
7
8
9
*For 2-Wire Operation:
•
•
•
Table 3-2. 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
3–3
Revision 1
MN/SDM300L3.IOM
)
Name
(4-Wire)
+TX
-TX
+RX
-RX