Comtech EF Data SLM-5650A - Manual (Page 333)

SLM-5650A Satellite Modem Revision 8
Appendix A MN-SLM5650A
A–11
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
UNIT FAULTS NONE X GREEN
+5.0V POWER X RED X X
+3.3V POWER X RED X X
+2.5V POWER X RED X X
+1.5V POWER X RED X X
+12V POWER X RED X X
-12V POWER X RED X X
+18V POWER X RED X X
COOLING FAN RED X X
EXTERNAL REF
ACTIVITY
ORANGE X X
192 MHZ CLOCK
PLL
X RED X X
10 MHZ REF PLL X RED X X
M&C FPGA
CONFIG
X RED X X
MOD FPGA
CONFIG
X RED X X
DEMOD FPGA
CONFIG
RED X X
DECODER FPGA
CONFIG
RED X X
TX INTF FPGA
CONFIG
X RED X X
RX INTF FPGA
CONFIG
RED X X
FEC #1 FPGA
CONFIG
X** RED X X
FEC #2 FPGA
CONFIG
X** RED X X
OPTION CARD
FPGA CONFIG
RED X X
FPGA DCM phase
Lock Loop Fault
RED X X
NP MAILBOX
COMM ERROR
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.