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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1453UDS1-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.
When the test is complete, the maintenance software sends a stop loop around
message to the UDS1 Interface circuit pack to put the circuit pack back into the
normal operation mode. All trunks or ports of the UDS1 Interface circuit pack are
restored to the in-service state after the release board command is entered.
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 10-492. TEST #53 SAKI Sanity Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page