Mocomtech CDM-570 Manuel D’Utilisation
CDM-570/570L Satellite Modem with Optional IP Module
Revision 4
Connector Pinouts
MN/CDM570L.IOM
5.3
Balanced G.703 Interface Connector
The Balanced G.703 connection is a 15-pin female connector located on the rear panel of
the modem. Refer to Table 5-3 for pin assignments.
the modem. Refer to Table 5-3 for pin assignments.
Table 5-3. Balanced G.703 Interface Connector Pin Assignments
Pin #
Signal Function
Name
Direction
1
Tx G.703 -
Tx G.703 In
In
9
Tx G.703 +
Tx G.703 In
In
2 Ground
GND
3
Rx G.703 -
Rx G.703 Out
Out
11
Rx G.703 +
Rx G.703 Out
Out
4 Ground
GND
Pins 5, 6, 7, 8, 10, 12, 13, 14 and 15 are not used.
5.4
Remote Control Interface Connector
The remote control interface connection is a 9-pin male connector located on the rear
panel of the modem. Refer to Table 5-4 for pin assignments.
The remote control port is intended for connection to an M&C computer, or terminal device.
This interface is user selectable for either EIA-232 or EIA-485.
panel of the modem. Refer to Table 5-4 for pin assignments.
The remote control port is intended for connection to an M&C computer, or terminal device.
This interface is user selectable for either EIA-232 or EIA-485.
Table 5-4. Remote Control Interface Connector Pin Assignments
Pin #
Description
Direction
1 Ground
2
EIA-232 Transmit Data
Out
3
EIA-232 Receive Data
In
4
Reserved - do not connect to this pin
5 Ground
6
EIA-485 Receive Data B *
In
7
EIA-485 Receive Data A *
In
8
EIA-485 Transmit Data B
Out
9
EIA-485 Transmit Data A
Out
* Use for 2-wire EIA-485 operation
5–3