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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 10-344CO-TRK (CO Trunk)
10
NPE Crosstalk Test (#6)
One or more Network Processing Elements (NPEs) reside on each circuit pack
with a TDM Bus interface. The NPE controls port connectivity and gain, and
provides conferencing functions on a per port basis. The NPE Crosstalk Test
verifies that this port’s NPE channel talks on the selected time slot and never
crosses over to time slots reserved for other connections. If the NPE is not
working correctly, one way and noisy connections may be observed. This test is
usually only part of a port’s long test sequence and takes approximately 20 to 30
seconds to complete.
57481 FAIL On-board test of programmable transmission circuitry
failed.
1. Replace the circuit pack.
PASS This test verifies that the port is able to apply ground for
outgoing calls and detect ground for incoming calls;
however, it does not provide information on whether a
CO line is actually connected. User-reported troubles on
this port should be investigated by using other port tests
and by examining trunk or external wiring.
0NO
BOARD
The test could not relate the internal ID to the port (no
board).
1. Check to ensure that the board translations are
correct. Translate the board, if necessary.
2. Issue the busyout board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board command. This should
re-establish the linkage between the internal ID and
the port.
Table 10-95. TEST #3 CO Demand Diagnostic Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page