Mocomtech CDM-570L Manual De Usuario
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 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.
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 Traffic (Energized, No Fault)
Rx Traffic
RX-NC
RX-NO
RX-COM
RX-NO
RX-COM
14
6
13
Tx Traffic (De-energized, Faulted)
Tx Traffic (Energized, No Fault)
Tx Traffic
Tx Traffic (Energized, No Fault)
Tx Traffic
TX-NC
TX-NO
TX-COM
TX-NO
TX-COM
5
12
4
Unit Fault (De-energized, Faulted)
Unit Fault (Energized, No Fault)
Unit Fault
Unit Fault (Energized, No Fault)
Unit Fault
UNIT-NC
UNIT-NO
UNIT-COM
UNIT-NO
UNIT-COM
11
3
Rx I Channel (Constellation monitor)
Rx Q Channel (Constellation monitor)
Rx Q Channel (Constellation monitor)
RX-I
RX-Q
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