Esc (Db-9F); Utility Connections Group; Remote Control (Db-9M) - 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 3-9. ESC Connector Pinouts
(R>L)
Asynchronous
Pin #
5
9 EIA-485 Rx Data A Out
4
8 EIA-485 Rx Data B Out
3 EIA-232 Tx Data In
7 EIA-485 Tx Data A In
2 EIA-232 Rx Data Out
6 EIA-485 Tx Data B In
1
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 3-10. Remote Control Connector Pinouts
(L>R)
Description
Pin #
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
–– EIA-232 Tx Clock Out
–– EIA-232 Rx Clock Out
EIA-232 Tx Data In
EIA-232 Rx Data Out
Ground
Direction
Ground
Ground
3–14
MN-CDM625A
Revision 4
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Ground
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In
Out
In
In
Out
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Out
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