DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1111M/T-DIG (Maintenance/Test Digital Port)
9
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in the following table when
inspecting errors in the system. By clearing error codes associated with the
Digital Port Sanity Test
, for example, you may also clear errors generated from
other tests in the testing sequence.
NPE Crosstalk Test (#9)
This test is a modified version of the Digital Line NPE Crosstalk Test used by
DIG-LINE maintenance.
One or more Network Processing Elements (NPE) reside on each circuit pack
with a TDM Bus interface. The NPE controls port connectivity, 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/or noisy connections may be observed. This test is part of a port’s long
test sequence and takes approximately 10 to 20 seconds to complete. This test
is a modified version of the Digital Line NPE Crosstalk Test used by DIG-LINE
maintenance
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive, ND = Non-destructive
Digital Port Sanity Test (#565) X X ND
Digital Port Loop Around Test (#13) X X ND
NPE Crosstalk Test (#9) X ND
Hook State Inquiry (#566) X X ND
Clear Error Counters (#270) X ND
