Avaya DEFINITY Server CSI Maintenance Manual page 1119

DS1-BD (DS1 Interface Circuit Pack)
Table 236. TEST #1209 DS1 Board Loopback Test — Continued
Error Test
Code Result
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.
CSU Equipment Loopback Test (#1210)
This test is destructive.
The CSU Equipment Loopback (ELB) Test causes a loopback at the near-edge of
the local 120A CSU Module or T1 Sync Spilitter, 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 1.544Mbps TN767E DS1 circuit pack on the back of the port
carrier.
The test is destructive and can only be initiated by a system 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.
When the ELB Test is initiated, maintenance software sends an appropriate
message to the TN767E DS1 Interface circuit pack to start the test. The board
sets up the ELB loopback, transmit a test pattern, and verify that the pattern is
received unaltered through the loopback. If the transmitted and received pattern is
different, the test fails.
555-233-119
Description/ Recommendation
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
Issue 5 October 2002
1119