Connections; Balanced E1/T1 Interface Connector, Db-15F; Table 3-3. Balanced G.703 Interface Connector Pin Assignments - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Rear Panel Connectors and Pinouts
3.3.2 G.703 Connections
3.3.2.1 G.703 Balanced E1/T1 Interface Connector, DB-15F

Table 3-3. Balanced G.703 Interface Connector Pin Assignments

Pin #
1
9
2
3
11
4
The G.703 Balanced E1/T1 connection is a 15-pin 'D' type female (DB-15F)
connector used for balanced operation at the G.703 data rates of E1 (2.048
Mbps) or T1 (1.544 Mbps).
Signal Function
Tx G.703 -
Tx G.703 +
Ground
Rx G.703 -
Rx G.703 +
Ground
Pins 5, 6, 7, 8, 10, 12, 13, 14 and 15 are not used.
Name
Tx G.703 In
Tx G.703 In
GND
Rx G.703 Out
Rx G.703 Out
GND
3–5
Revision 12
MN/CDM570L.IOM
Direction
In
In
Out
Out