K-2
Appendix K
Trouble Message The Probable Cause Is:
ASD Testing Enabled Application specific detector testing
is enabled. The applications feature
is disabled during testing.
Audio Fault Isol-St 4Rx This trouble will be reported by the
Audio Fault Isol-St 4Tx RCM-1 module on either side of
Audio Fault Isol-St 7Rx shorted riser, denoting where the
Audio Fault Isol-St 7Tx short has occurred.
Audio Output Class A Active Broken wire or missing EOL on riser.
Audio Output Shorted Shorted wire on riser.
Audio Riser 1 Trouble Wiring from TBM-2 to EOL. EOL
Audio Riser 2 Trouble missing, wiring to EOL is shorted.
Audio Riser 3 Trouble
Audio Riser 1 Class A Active Riser wiring open, Class A jumpers
Audio Riser 2 Class A Active missing.
Audio Riser 3 Class A Active
Aux Power Voltage Low PSR-1 24V output is overloaded.
MPS-6/-12 harness is missing.
Aux Pwr Class A Fail Neg The negative side of the CZM-1B6
power circuit is open.
Aux Pwr Class A Fail Pos The positive side of the CZM-1B6
power circuit is open.
Aux RS232 Transmit Fail The NET-7 detected a failure on its
auxiliary programming port.
Backup Tone Card Backup Tone Card is defective or
missing.
Battery Backup Invalid A battery is connected, but not selected
in CSG-M.
Battery Fuse/Wiring Open Either the battery is not connected, or
the battery fuse is blown, or the battery
voltage is too low.
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