Comtech EF Data CDM-625, Инструкция по установке и эксплуатации

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CDM-625 Advanced Satellite Modem Revision 1
Rear Panel Connector Pinouts MN-0000036 (Ref MN/CDM625.IOM)
3.4.2 Alarms Connector, DB-15M
Unit alarms are provided on a 15-pin Type ‘D’ male connector. Refer
to
Table 3-11
for pin assignments.
Table 3-11. 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
3.4.3 PMSI Connector, DB-9F
The PMSI (
P
re-
M
apped
S
ymbol
I
nterface) is a 9-pin Type ‘D’ female
connector. Refer to
Table 3-12
for pin assignments.
Table 3-12. PMSI (Pre-Mapped Symbol Interface) Connector Pin Assignments
Pin # Description Direction
1 Ground -
6 Spare – do not connect -
2 Spare – do not connect -
7 PMSI symbol clock – RS485 - In/Out
3 PMSI symbol clock – RS485 + In/Out
8 PMSI LSB – RS485 - In/Out
4 PMSI LSB – RS485 + In/Out
9 PMSI MSB – RS485 - In/Out
5 PMSI MSB – RS485 + In/Out
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