Comtech EF Data C5 - Manual (Page 243)

C5/K1/K3 Integrated Satellite Terminal System System Checkout
Rev. 0 6-19
6.3.3.5 Common Equipment Faults
Fault/Alarm Possible Problem and Action
BATTERY/CLOCK M&C battery voltage or clock fault.
Indicates a low voltage in the memory battery. Typically, this fault will be active
when a modem has been hard reset or the firmware has been changed. When a
hard reset has been executed or the firmware has been changed, this fault will
typically be active when the modem is first turned on.
-12 VOLT SUPPLY -12V power supply fault.
Indicates a high or low voltage condition. Level is
# 5%.
Check for a short on the -12V line from the power supply or on any of the plug-
in boards.
+12 VOLT SUPPLY +12 VDC power supply fault. Use the same procedure as with -12V fault.
+5 VOLT SUPPLY +5V power supply fault. Use the same procedure as with a -12V fault.
The +5V supply requires a minimum load of 1A.
CONTROLLER Controller fault.
Indicates a loss of power in the M&C card. Typically indicates the controller has
gone through a power on/off cycle.
INTERFACE
MODULE Interface module fault.
Indicates a problem in programming the interface card or
Reed-Solomon.
SELF TEST After completion of the test, SELF TEST (“PASSED” or “FAILED”) is
displayed.
!
OFF: bypasses built-in self test.
!
AUTO: initiates built-in self test when turning on modem.
!
RUN: initializes self test.
IDU Power Supply Indicates a temperature failure in the IDU power supply.
6.3.3.6 ODU Faults
Module ODU failure.
Communication ASK communication failure.