Avaya DEFINITY Server CSI Maintenance Manual page 1122

Table 237. TEST #1210 CSU Equipment Loopback Test — Continued
Error Test
Code Result
FAIL DS1 Interface circuit pack failed the CSU Equipment Loopback Test.
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 The test could not relate the internal ID to the port (no board).
BOARD
This could be due to incorrect translations, no board is inserted, an incorrect
board is inserted, or an insane board is inserted.
This should re-establish the link between the internal ID and the port.
1122
Issue 5 October 2002
Description/ Recommendation
1. Retry test ds1-loop UUCSS 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 running test ds1-loop
UUCSS ds1/csu-loopback-tests again.
3. If the ELB test continues to fail, then replace the TN767E board and run
test ds1-loop UUCSS 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.
1. Check to ensure that the board translations are correct. Use the add ds1
UUCSS command to administer the DS1 interface if it is not already
administered.
2. If board was already administered correctly, check the error log to
determine if 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, 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.
Continued on next page
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