Mocomtech CDM-570 - Manual (Page 122)

CDM-570/570L Satellite Modem with Optional IP Module Revision 4
Connector Pinouts MN/CDM570L.IOM
5.5 BNC Connectors
There are three BNC connectors located on the rear panel of the modem. Refer to
Table 5-5 for pin assignments.
Table 5-5. BNC Connectors
BNC
Connector
Description Direction
EXT REF External Reference Input In
G.703 Out Rx G.703 (Unbalanced) Out
G.703 In Tx G.703 (Unbalanced) In
5.6 Unit Alarms
Unit alarms are provided on a 15-pin male connector located on the rear panel of the
modem. Refer to Table 5-6 for pin assignments.
Table 5-6. Alarm Interface Connector Pin Assignments
Pin # Signal Function Name
8
15
7
Rx Traffic (De-energized, Faulted)
Rx Traffic (Energized, No Fault)
Rx Traffic RX-NC
RX-NO
RX-COM
14
6
13
Tx Traffic (De-energized, Faulted)
Tx Traffic (Energized, No Fault)
Tx Traffic TX-NC
TX-NO
TX-COM
5
12
4
Unit Fault (De-energized, Faulted)
Unit Fault (Energized, No Fault)
Unit Fault UNIT-NC
UNIT-NO
UNIT-COM
11
3
Rx I Channel (Constellation monitor)
Rx Q Channel (Constellation monitor) RX-I
RX-Q
10 No Connection N/C
2 AGC Voltage (Rx signal level, 0 to 10 volts) AGC
9 EXT Carrier OFF EXT-OFF
1 Ground GND
5–4