Avaya 03-300430 User Manual

This test is destructive.
This test is executed by the TN574 DS1 Converter circuit pack only. Test #790 covers this 
testing for the TN1654 DS1 Converter.
This test starts at the DS1 converter circuit pack whose equipment location was entered and 
loops at the Fiber Optic Terminator (lightwave transceiver) that is connected to the DS1 
converter circuit pack at the other end of the DS1 converter complex. See the following 
diagram.

FAIL

Far-end DS1 converter loop back failed. A problem exists between the 
DS1 converter A and the DS1 converter B (see previous diagram).

1. If there are facilities that are not digital-data compatible, busyout the 

facilities via busyout ds1-facility.

2. If the test is executed as a part of an error analysis, then return back to 

the related section.

3. Enter display errors and follow the associated repair procedures 

for any on-board DS1C-BD errors on this DS1 converter circuit pack 
and the DS1 converter circuit pack at the other end of the DS1 
converter complex. Enter display errors and follow the associated 

repair procedures for any DS1-FAC errors on the DS1 facilities.

4. Check the DS1 Converter Measurements Report to see if there are 

facilities with excessive errors. Use list measurements 
ds1-facility summary. If there are facilities with excessive errors, 

execute the Far-End Internal Loopback test (#797) on those facilities, 
and follow repair procedures described for the test.

5. If the test still fails, replace the DS1 converter circuit pack at the other 

end of the DS1 converter complex.

6. If the test still fails, replace this DS1 converter circuit pack.

PASS

Transmission through the path of the loop back is successful.

0

NO 

BOARD

The system software found no board.

1. Reset the board.

2. Remotely retry the command.

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