TN2464 fails test 135 on busy release

[phoneguy55]

On an old Definity CM9 got a TN2464 that is failing test 135 when I busy/release the board. Already opened carrier ticket as there have complaints about no audio. They said, no problem found. Going to swap the wiring to smart jack, TN board, 120 CSU, and 700A loop back jack one by one until I get it to pass. Any other ideas? Thanks.

 

[joe2938]

I believe that is a loop back test, maybe replace the board.

 

[Wanebo]

That is the loop around test. What error is it failing with?

 

[AvayaTier3]

135 FAIL is not when you release the board. It is when you "reset board"

#135 Internal Loop Around Test

you need to "busy board", "reset board", "release board"

Internal Looparound Test (#135)
This test is destructive.
The Internal Looparound Test loops the transmitted DS1 bit stream back into the board receiver.
The loop occurs just before the DS1 facility interface. The test is highly destructive and can only
be initiated by a reset board location command.
All of the trunks on the DS1 or UDS1 Interface circuit pack must first be busied out using the
busyout board location command before the Internal Looparound Test can be executed.
The test uses the Tone Generator and Tone Detector to exercise a bit pattern consistency test
for all ports. If the transmitted and received bit patterns on a trunk are different, the test fails.
All trunks of the DS1 Interface circuit pack are restored to the in-service state after
release board location is entered


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bsh

44 years Bell, AT&T, Lucent, Avaya
Tier 3 for 34 years and counting
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[phoneguy55]

Sorry. Yea it was failing 135 on a busy then reset board. And the board is tn2313ap.

Going to swap the board now and retest.