Chassis Connections; 4.4.1 Usb Port; 4.4.2 M&C 10/100Baset Connector; 4.4.3 485/232 Connector - Comtech EF Data CDM-Qx Installation And Operation Manual

CDM-Qx Satellite Modem
External Connections
4.4

Chassis Connections

4.4.1 USB Port

4.4.2 M&C 10/100BaseT Connector

4.4.3 485/232 Connector

Table 4-2. Remote Control Interface Connector Pin Assignments

Pin #
1
2
3
4
5
6
7
8
9
*Use for 2-wire RS-485 operation
This port is used to reflash firmware.
The M&C 10/100BaseT connector is an 8-pin RJ-45 10/100BaseT
Ethernet port providing access to the modem's management functions.
The 485/232 connectors are a 9-pin 'D' type male (DB9-M). Access is provided
to remote control ports of the modem, using both RS-232 and RS-485.
Description
Ground
RS-232 TX Data
RS-232 RX Data
Reserved - do not connect to this pin
Ground
RS-485 RX Data B *
RS-485 RX Data A *
RS-485 TX Data B
RS-485 TX Data A
4–6
Revision 6
MN/CDMQx.IOM
Direction
Out
In
In
In
Out
Out