Avaya DEFINITY Server CSI Maintenance Manual page 1637

TBRI-PT (TN2185 ISDN Trunk-Side BRI Port)
CRC Error Counter Test (#623)
This test is non-destructive. This test reads the BRI port's CRC error counters that
are maintained on the BRI circuit pack. The Cyclic Redundancy Check (CRC) is a
means of error detection used to determine the integrity of data frame contents.
The CRC error counter is incremented by the circuit pack when it detects a CRC
error. The test passes if the value of the counter is 0 (that is, the error is cleared).
If the counter is non-zero, the test fails, and the value of the counter is displayed in
the Error Code field.
Table 476. TEST #623 CRC Error Counter Test
Error Test
Code Result
ANY FAIL
PASS
555-233-119
Description/ Recommendation
This error occurs when a frame with a bad CRC is received over the
D-Channel by the BRI board. This error is reported on a per-port basis
when the counter goes over the threshold. This error is most likely due to a
problem with the wiring or interference on the wiring caused by a noise
source or no termination. It usually does not indicate a problem with the
circuit pack.
The CRC error counter was read correctly and has a value of 0.
Continued on next page
Issue 5 October 2002
1637