Comtech EF Data SLM-5650A Installation And Operation Manual page 270

Test Note
1
2
3
**
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.5 LED Indicator Faults
Chapter 7. FRONT PANEL OPERATION
There could be any number of reasons for a front panel LED to indicate a fault or an alarm:
•
The modem can store up to a total of 255 occurrences of any fault. Use the front panel
MONITOR: Event-log menu to review faults as they occur. See Chapter 7. FRONT
PANEL OPERATION, Sect 7.1.2 for the LED Indicator descriptions.
•
Alarms are considered minor faults. Alarms are shown on the front panel VFD in the
MONITOR: Alarms nested Transmit, Receive, and Unit screens. Alarms are graphically
represented by a reverse-contrast (white on black) "+".
Appendix A
Fault Tree Legend
Fault/Alarm Relay
TX FAULT
RX FAULT
UNIT FAULT
A–12
SLM-5650A Satellite Modem
Test Points Connector/Pins
J8/Pin 2 (N.O.), 1 (COM), 6 (N.C.) ****
J8/Pin 5 (N.O.), 4 (COM), 9 (N.C.) ****
J8/Pin 8 (N.O.), 7 (COM), 3 (N.C.) ****
Revision 10
MN-SLM-5650A