SLM-5650B Satellite Modem
Revision 2
Appendix A A–13 MN-SLM-5650B
FAULT TYPE
TX IF
OUTPUT
OFF
TX
STATUS
LED
TX FAULT
RELAY (1)
RX
STATUS
LED
RX FAULT
RELAY (2)
UNIT
STATUS
LED
UNIT FAULT
RELAY (3)
AUDIBLE
ALARM
TX
AIS
RX
AIS
INT
TEMPERATURE
OUT OF RANGE
X RED X X
COOLING FAN
FAULT
X RED X X
NP CARD
MAILBOX COMM
ERROR
X RED X X
TRANSEC
MAILBOX COMM
ERROR
RED X X
Legend
Test Note Fault/Alarm Relay Test Points Connector/Pins
1 TX FAULT J8/Pin 2 (NO), 1 (COM), 6 (NC) ****
2 RX FAULT J8/Pin 5 (NO), 4 (COM), 9 (NC) ****
3 UNIT FAULT J8/Pin 8 (NO), 7 (COM), 3 (NC) ****
The IF output is only affected if that particular FEC card is currently passing traffic.
**** A connection between the common and N.O. contacts indicate no fault/alarm.
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