Lucent Technologies 555-233-119 DID-TRK Loop Around and Conference Circuit Test,

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-477DID-TRK (DID Trunk)
3
l. Late CO trunk release – This event only happens after the occ urrence of
Error Type 513. The CO released the trunk four minutes after the PBX
dropped the c all. This event decrements the severity (error count) of Error
Type 513, or may mean the problem related to Error Type 513 has been
fixed.
1 – Verify that Error Type 513 does not occ ur again. Refer to Error 513.
m. Incomplete Dial timer expi red. This error applies only to the TN459.
Problem with incoming dialing stream. Refer problem to the CO.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order p resented in the table below when
inspecting errors in the sy stem. By clearing error cod es associated with the
DID-TRK Loop Around and Conference Circuit Test, for example, you may also
clear errors generated from sub sequent tests in the testing seq uence.
NPE Crosstalk Test (#6)
One or more NPEs reside on each circuit pac k with a TDM Bus interface. The
NPE controls port connectivity and gain, and provid es conferencing func tions 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 correc tly, one-way and noisy connections
may be observed. This test is usuall y only part of a port’s Long Test Sequence
and takes about 20 to 30 sec onds to complete.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND1
1. D = Destructive; ND = Nondestruc tive
NPE Crosstalk Test (#6) X ND
Port Diagnostic Test (#35) X X ND
Loop Around and Conference Circuit Test (#33) X ND
Port Audit Update Test (#36) X X ND