Comtech EF Data SDM-100A - Manual (Page 60)

Operation SDM-100A Satellite Modem
3–26 Rev. 0
3.2.1.3 Faults/Alarms
The “FAULTS/ALARMS” level is accessible from the “FUNCTION SELECT” menu.
These are similar to monitor functions, as the current status is displayed.
Press [
← ] or [ → ] to move between the Fault/Alarm groups:
• Modulator faults
• Demodulator faults
• Transmit Interface faults
• Receive Interface faults
• Common Equipment faults
The current Faults/Alarms status is displayed on line 2 of the display in real time.
Fault status is displayed as a “+” (plus) or “-” (minus) for each parameter monitored:
• “-” indicates that no fault or alarm exists.
• “+” indicates that a fault exists, and will cause switching in a redundant system.
• A reversed-contrast “+” sign appearing on the display indicates an alarm is
active.
Note: Alarms do not cause switching to occur.
To display labels for individual faults or alarms, press [ENTER]. Press [
← ] or [ → ] to
move the flashing cursor to the fault or alarm to be identified. The label for that
fault/alarm is immediately displayed on line 1 of the display. To exit this level of
operation and return to the previous level, press [CLEAR].
The following paragraphs list the faults and alarms monitored and displayed in each
group. This information can be used to isolate a problem and help the user decide on the
appropriate action to be taken.