Esc (Db-9F); Utility Connections Group; Remote Control (Db-9M); Table 3-10. Esc Connector Pinouts - Comtech EF Data CDM-625A Installation And Operation Manual

CDM-625A Advanced Satellite Modem
Rear Panel Connectors and Pinouts
3.2.2.5

ESC (DB-9F)

3.2.3

Utility Connections Group

3.2.3.1

Remote Control (DB-9M)

The ESC (Engineering Service Channel) port is a 9-pin Type 'D' female
connector.

Table 3-10. ESC Connector Pinouts

Pin #
Asynchronous
(R-L)
1 Ground
6 RS-485 Tx Data B in
2 RS-232 Rx Data out
7 RS-485 Tx Data A in
3 RS-232 Tx Data in
8 RS-485 Rx Data B out
4
9 RS-485 Rx Data A out
5
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.

Table 3-11. Remote Control Connector Pinouts

Pin #
Description
(L-R)
1
6 EIA-485 Receive Data 'B' *
2 EIA-232 Transmit Data
7 EIA-485 Receive Data 'A' *
3 EIA-232 Receive Data
8 EIA-485 Transmit Data 'B' *
4 Reserved – Do Not Use
9 EIA-485 Transmit Data 'A' *
5
*Use for EIA-485 2-wire operation
Synchronous
Ground
–
RS-232 Rx Data out
–
RS-232 Tx Data in
–
– RS-232 Rx Clock out
–
– RS-232 Tx Clock out
Direction
Ground
Ground
3–12
Revision 0
MN-CDM625A
–
In
Out
In
In
Out
–
Out
–