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Maintenance Object Repair Procedures
555-233-123 10-1936 Issue 4 May 2002
Echo Canceller Test (#1420)
This test is destructive.
NOTE:
This test is executed only for TN464GP/TN2464BP circuit packs that have
been administered on the DS1 circuit pack form to provide echo
cancellation. The TN464GP/TN2464BP must be busied out before this
demand test is run.
PASS The ICSU Status LEDs test executed successfully. A PASS
result, however, does not necessarily mean that the status LEDs
behaved properly. It only means that the software successfully
attempted to light the status LEDs. This is a visual test. The
service technician must visually exam the behavior of the LEDs
while the test is running. The LEDs are functioning properly if the
four status LEDs are lit red for 5 seconds, then lit green for 5
seconds, then lit yellow for 5 seconds. If the LEDs behave
differently, the board should be replaced at the customer’s
convenience.
0 NO
BOARD The test could not relate the internal ID to the port (no board).
This could be due to incorrect translations, no board is inserted,
an incorrect board is inserted, or an insane board is inserted.
1. Ensure that the board translations are correct. Execute the
add ds1 UUCSS command to administer the UDS1
interface if it is not already administered.
2. If the board was already administered correctly, check the
error log to determine whether the board is hyperactive. If
this is the case, the board is shut down. Reseating the
board will re-initialize the board.
3. If the board was found to be correctly inserted in step 1,
then issue the busyout board command.
4. Issue the reset board command.
5. Issue the release busy board command.
6. Issue the test board long command.
This should re-establish the linkage between the internal ID and
the port.
Table 10-690. TEST #1227 ICSU Status LEDs Test — Continued
Error
Code Test
Result Description/Recommendation
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