Avaya S8700 Maintenance Manual page 1355

DS1-BD (DS1 Interface Circuit Pack)
Table 8-254. Test #1209 DS1 Board Loop-Back Test — Continued
Error Test
Code Result Description / Recommendation
PASS The BLB test executed successfully. The test pattern was transmitted and
received successfully up to the TN767E DS1 board edge.
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.
1. Verify that the board's translations are correct. Use the add ds1 UUCSS
2. If board was already administered correctly, check the error log to
3. If the board was found to be correctly inserted in step 1, issue the busyout
4. Issue the reset board command.
5. Issue the release busy board command.
6. Issue the test board long command.
CSU Equipment Loop-Back Test (#1210)
This test is destructive.
The CSU ELB (Equipment Loopback) test causes a loop back at the near-edge of
the local 120A CSU module or T1 sync splitter, and tests the connection from the
TN767E DS1 board to the CSU module/T1 sync splitter (DS1 board edge
interconnecting cable, and CSU module/T1 sync splitter edge). This test will only
be performed if the 120A CSU module/T1 sync splitter is present, administered,
and connected to a 1.544-Mbps TN767E DS1 circuit pack behind the port carrier.
The test is destructive and can only be initiated by a technician-demanded
test ds1-loop UUCSS ds1/csu-loopback-tests command.
All trunks or ports on the DS1 Interface circuit pack must be busied out via the
system technician busyout board command before running the ELB test.
555-233-143
command to administer the DS1 interface if it is not already administered.
determine whether the board is hyperactive. If so, the board was shut
down. Reseating the board will re-initialize it.
board command.
This should re-establish the link between the internal ID and the port.
Continued on next page
Issue 1 May 2002 8-633