Instruction manual

Maintenance
Table 6-1. Error Conditions
Type of Error
Abbrv.
Permanent?
Transient?
Sys. Alarm?
SYNC Yes No
Yes
BRI LOSS OF SYNC
No Yes
No
BRI SLIPS >88
BRI NET REQUESTED CCRCs
CCRC No Yes No
DEAC
Yes No Yes
BRI NET DEACTIVATE
Yes
No
Yes
BRI NET INV 2B+D LB ACT
2B+D
Yes No Yes
BRI NET INV B1 LB ACT
B1LB
No
Yes
BRI NET INV B2 LB ACT
B2LB Yes
No
Yes
BRI NET INV IL LB ACT
ILLB Yes
Yes No Yes
BRI NET INV QM LB ACT
QMLB
Text
Yes No
Yes
ENDPT IN RESTRICTED SVCE
Yes No
Yes
LINK ESTABLISHMENT FAIL
No Yes
ENDPOINT UNINIT (L2, L3)
Yes
No
Yes
No
NW TOOK ENDPOINT 00S
Yes No
Yes
NW NOT RESPOND TO SETUP
Yes
No
Yes
NW NOT RESPOND TO RELEAS
NEBEs
No No No
FEBEs
-
No No No
Synchronization Errors
Some errors occur because of loss of synchronization in framing.
Loss of Synchronization (BRI LOSS OF SYNC)
A loss of synchronization occurs when the synchronization word for establishing
basic framing and/or the inverted synchronization word for establishing the
superframe has not been detected for 480 milliseconds (ins). A loss of
synchronization is a permanent error and causes the system reaction for
permanent errors, as described above. The facilities affected by the loss of
synchronization are taken out of service until the error condition is removed.
Error Logs and Error Messages 6-19