UDS1-BD (UDS1 Interface Circuit Pack)
Issue 4 May 2002
10-1919 555-233-123
Far CSU Loopback Test (#1213)
This test is destructive.
The Far CSU Loopback (R-LLB) Test causes a loopback at the far-end CSU and
tests all circuitry and facilities from the local DS1 board to the far-end CSU.
The test is destructive and can only be initiated by a system technician demanded
test ds1-loop UUCSS far-csu-loopback-test-begin command.
All trunks or ports on the UDS1 Interface circuit pack must be busied out using the
system technician busyout board command before running the Far CSU
Loopback Test.
If the far-end CSU is not a Avaya 120A1 CSU Module or the 401A T1 Sync
Splitter, and the DS1 is administered for ami-zcs line coding, density protection
must be disabled on the CSU/T1SS during the test due to the large number of
zero’s in the 3-in-24 test pattern.
PASS The CPE Loopback Jack test has successfully began executing.
The test will continue to run until the system technician enters
the test ds1-loop UUCSS end-loopback/span-test command
or the release board UUCSS command.
0NO
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 10-685. TEST #1212 CPE Loopback Jack Test — Continued
Error
Code
Te s t
Result Description/Recommendation
Continued on next page
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