Comtech EF Data SLM-5650A Installation And Operation Manual page 333

SLM-5650A Satellite Modem
Appendix A
FAULT TYPE
UNIT FAULTS
NONE
+5.0V POWER
+3.3V POWER
+2.5V POWER
+1.5V POWER
+12V POWER
-12V POWER
+18V POWER
COOLING FAN
EXTERNAL REF
ACTIVITY
192 MHZ CLOCK
PLL
10 MHZ REF PLL
M&C FPGA
CONFIG
MOD FPGA
CONFIG
DEMOD FPGA
CONFIG
DECODER FPGA
CONFIG
TX INTF FPGA
CONFIG
RX INTF FPGA
CONFIG
FEC #1 FPGA
CONFIG
FEC #2 FPGA
CONFIG
OPTION CARD
FPGA CONFIG
FPGA DCM phase
Lock Loop Fault
NP MAILBOX
COMM ERROR
TRANSEC
MAILBOX COMM
ERROR
Test Note
1
2
3
**
****
TX IF TX
TX FAULT
OUTPUT STATUS
RELAY (1)
OFF LED
X
X
X
X
X
X
X
X
X
X
X
X
X
X**
X**
Legend
Fault/Alarm Relay
TX FAULT
RX FAULT
UNIT FAULT
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.
A–11
RX UNIT
RX FAULT
STATUS STATUS
RELAY (2)
LED LED
GREEN
RED
RED
RED
RED
RED
RED
RED
RED
ORANGE
RED
RED
RED
RED
RED
RED
RED
RED
RED
RED
RED
RED
RED
RED
Test Points Connector/Pins
J8/Pin 2 (NO), 1 (COM), 6 (NC) ****
J8/Pin 5 (NO), 4 (COM), 9 (NC) ****
J8/Pin 8 (NO), 7 (COM), 3 (NC) ****
Revision 8
MN-SLM5650A
UNIT FAULT AUDIBLE TX
RELAY (3) ALARM AIS
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
X X
RX
AIS