ASAI-PT
Issue 1 May 2002
8-163555-233-143
CRC Error Counter Test (#623)
This test reads and clears the BRI port’s CRC error counter maintained on the
BRI-LINE circuit pack. This counter is incremented by the circuit pack when it
receives a frame from the endpoint or adjunct with a bad CRC over the D channel.
The test passes if the value of the counter is 0 (the error is cleared). If the counter
is not 0, the test will fail and the value of the counter is displayed in the Error
Code field. A CRC error is most likely due to a problem with the wiring to the set
or adjunct, interference on the wiring due to a noise source (for example, electrical
motors or generators), or no termination (open circuit). It usually does not indicate
a problem with the BRI circuit pack. This test is used for verifying the repair of the
problem.
Table 8-63. Test #623 CRC Error Counter Test
Error
Code
Tes t
Result Description / Recommendation
2000 ABORT Response was not received from the circuit pack within the allowable time
period.
1. If the test aborts repeatedly up to 5 times, reset the circuit pack using the
busyout board UUCSS and reset board UUCSS commands.
2. If the test aborts again, replace the circuit pack.
!
CAUTION:
Do not leave the circuit pack busied out.
2012 ABORT Internal system error
1. Retry the command at 1-minute intervals up to 5 times.
Any FAIL The BRI circuit pack is still detecting CRC errors. The
Error Code field
contains the value of the counter.
1. Retry the command at 1-minute intervals up to 5 times.
2. If the test continues to fail, review the results of other tests in the long test
sequence. Pay particular attention to the results of the Level 1 Status
Inquiry test. Follow the repair procedures for any of the executed tests if
they fail; otherwise, proceed to step 3.
3. If the tests for the endpoints or adjunct pass and the CRC error counter
test continues to fail, check the wiring to the endpoints or adjunct. If the
wiring appears to be OK, escalate the problem.
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