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Communication Manager Maintenance-Object Repair Procedures
1030 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
FAIL DS1 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 TN767E board, the
CSU module/T1 sync splitter, or the I/O cable between the backplane
and the 120A1 CSU module or the 401A T1 sync splitter (or any
combination thereof) has failed. Attempt to isolate the problem to one
of these areas. Replace the CSU module/T1 sync splitter, and run
test ds1-loop location ds1/csu-loopback-tests again.
3. If the ELB test continues to fail, then replace the TN767E board and
run test ds1-loop location ds1/csu-loopback-tests
again.
4. If the ELB test continues to fail, the problem could be in the I/O cable
between the backplane and the 120A1 CSU module or the 401A T1
sync splitter.
PASS The ELB test executed successfully. The test pattern was transmitted and
received successfully over the connection from the TN767E DS1 board to
the near-edge of the 120A1 CSU module/T1 sync splitter.
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. Verify that the board’s translations are correct. Use add ds1
location to administer the DS1 interface if it is not already
administered.
2. If 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
4. Enter reset board
5. Enter release board
6. Enter test board long
This should re-establish the link between the internal ID and the port.
Table 354: Test #1210 CSU Equipment Loop-Back Test (continued)
Error
Code
Test
Result
Description / Recommendation
3 of 3