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UDS1-BD (UDS1 Interface Circuit Pack)
Issue 1 June 2005 2451
FAIL UDS1 Interface circuit pack failed the CSU Equipment Loopback test.
1. Retry test ds1-loop location ds1/csu-loopback-tests.
2. If the ELB test continues to fail, then either the UDS1-BD board, the
CSU module/T1 sync splitter, or the I/O cable between the backplane
and the CSU module/T1 sync splitter (or any combination thereof) has
failed. Attempt to isolate the problem to one of these areas.
3. Replace the CSU module/T1 sync splitter and run test ds1-loop
location ds1/csu-loopback-tests again.
4. If the ELB test continues to fail, replace the UDS1-BD board, and run
test ds1-loop location ds1/csu-loopback-tests again.
5. If the ELB test continues to fail, the problem could be in the I/O cable
between the backplane and the CSU module/T1 sync splitter.
PASS The ELB test executed successfully. The test pattern was transmitted and
received successfully over the connection from the DS1 board to the
near-edge of the 120A1 CSU module or the 401A T1 sync splitter.
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. Verify that the board’s translations are correct. Execute add ds1
location 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 so, the board was shut
down. Reseating the board will re-initialize it.
3. If the board was found to be correctly inserted in step 1, enter
busyout board location.
4. Enter reset board location.
5. Enter release board location.
6. Enter test board location long.
This should re-establish the linkage between the internal ID and the port.
Table 868: Test #1210 CSU Equipment Loop-Back Test (continued)
Error
Code
Test
Result
Description / Recommendation
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