Specifications

December 2008 Page B–5
Appendix B — Troubleshooting
No Framer Module Failure (F0) CLEARED
Returned to normal
Information FAILED to Reset Event Status Targets
Maint. Module did not reset events per command from FCS
Information FAILED to Send Event
Maint. Module did not receive event from HCB
Yes, if frequent FAILED to Send Timestamp
Maint. Module did not receive event timestamp from HCB or PRI module
Yes In Block
PRI module channel not communicating with remote PRI
No In Block CLEARED
Returned to normal
Information Input 1 Key CLEARED
Returned to normal
Information Input 1 Keyed
PRI module input #1 asserted
Information Input 2 Key CLEARED
Returned to normal
Information Input 2 Keyed
PRI module input #2 asserted
Information Input 3 Key CLEARED
Returned to normal
Information Input 3 Keyed
PRI module input #3 asserted
Information Input 4 Key CLEARED
Returned to normal
Information Input 4 Keyed
PRI module input #4 asserted
Yes Invalid Data
6NF channel module receiving bad data
No Invalid Data CLEARED
Returned to normal
Yes Invalid Module ID Failure
Insertion of a channel module in a locked chassis
No Invalid Module ID Failure CLEARED
Returned to normal
Information Local
Address Programming mismatch
Maint. Module stored PRI settings disagree with module loaded local address
Yes Low Signal Level Alarm XCVR1-1
Transceiver 1-1 not receiving signal from remote chassis
No Low Signal Level Alarm XCVR1-1 CLEARED
Returned to normal
Yes Low Signal Level
Alarm XCVR1-2
Transceiver 1-2 not receiving signal from remote chassis
No Low Signal Level Alarm XCVR1-2 CLEARED
Returned to normal
ALARM, EVENT TEXT,CONT’D
CONCERN? EXPLANATION OF EVENT