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Communication Manager Maintenance-Object Repair Procedures
1712 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
System Technician-Demanded Tests:
Descriptions and Error Codes
Investigate tests in the order presented below. Clearing Error Codes associated with the one
test may also clear errors generated from other tests in the 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 = Nondestructive
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