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 T ests: Descripti ons
and Error Codes
Always investigate tests in the order p resented in the following table wh en
inspecting errors in the sys tem. By clearing error cod es associated with the
Digital Port Sanity Test
, for example, you may also clear errors g enerated from
other tests in the testing sequenc e.
NPE Crosstalk Test (#9)
This test is a modified version of the Digital L ine NPE Crosstalk Test used by
DIG-LINE maintenance.
One or more Network Processing Elements (NPE) reside on each circu it pack
with a TDM Bus interface. The NPE controls port connectivity, gain, and provides
conferencing func tions on a per port basis. The NPE Crosstalk Test verifies that
this port’s NPE channel talks on the selected t ime slot and never crosses over to
time slots reserved for other connec tions. If the NPE is not working correctly, one
way and/or noisy connection s may be observed. This test is p art of a port’s long
test sequence and takes ap proximately 10 to 20 second s to complete. This test
is a modified version of the Dig ital Line NPE Crosstalk Test used by DIG-LINE
maintenance
Order of Investigation Short Test
Sequence Long Test
Sequence D/ND1
1. D = Destructive, ND = Non-d estructive
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