Esc Connector, Db-9F; Utility Connections; Remote Control Interface Connector, Db-9M; Table 3-9. Esc Connector Pin Assignments - Comtech EF Data CDM-625 Installation And Operation Manual

CDM-625 Advanced Satellite Modem
Rear Panel Connector Pinouts
3.3.5

ESC Connector, DB-9F

3.4

Utility Connections

3.4.1

Remote Control Interface Connector, DB-9M

Table 3-10. Remote Control Connector Pin Assignments

Pin #
1
2
3
4
5
6
7
8
9
* Use for 2-wire EIA-485 operation
The ESC (Engineering Service Channel) port is a 9-pin Type 'D' female
connector. Refer to Table 3-9 for pin assignments.

Table 3-9. ESC Connector Pin Assignments

Pin # Asynchronous
1 Ground
2 RS-232 Rx Data out
3 RS-232 Tx Data in
4 -
5 -
6 RS-485 Tx Data B in
7 RS-485 Tx Data A in
8 RS-485 Rx Data B out
9 RS-485 Rx Data A out
The Remote Control Interface is a 9-pin Type 'D' male connector. It is
intended for connection to an M&C computer or terminal device, and is user
selectable for either EIA-232 or EIA-485. Refer to Table 3-10 for pin
assignments.
Description
Ground
EIA-232 Transmit Data
EIA-232 Receive Data
Reserved - do not connect to this pin
Ground
EIA-485 Receive Data B
EIA-485 Receive Data A
EIA-485 Transmit Data B
EIA-485 Transmit Data A
MN-0000036 (Ref MN/CDM625.IOM)
Synchronous
Ground
RS-232 Rx Data out
RS-232 Tx Data in
RS-232 Rx Clock out
RS-232 Tx Clock out
-
-
-
-
*
*
3–11
Revision 1
Direction
-
Out
In
-
-
In
In
Out
Out