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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1549UDS1-BD (UDS1 Interface Circuit Pack)
10
Internal Loop Around Test (#135)
This test is destructive.
The Internal Loop Around Test is run by looping the transmitted DS1 bit stream
back into the UDS1’s board receiver. The loop occurs just before the DS1 facility
interface. The test is highly destructive and can only be initiated by a system
technician-demanded reset board PCSS command.
All trunks or ports on the UDS1 Interface circuit pack must be busied out via the
system technician busyout board command before running the Internal Loop
Around Test. When the Internal Loop Around Test is initiated, maintenance
software sends appropriate messages to the UDS1 Interface circuit pack to start
the test. The test uses the Tone Generator and Tone Detector to exercise a bit
pattern consistency test for all ports. If the transmitted and received bit patterns
on a trunk or port are different, the test fails.
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. Ensure that the board translations are correct.
Execute the add ds1 PCSS command 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 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, then 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.
This should re-establish the linkage between the internal
ID and the port.
Table 10-458. TEST #53 SAKI Sanity Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page