Lucent Technologies 555-233-119 Loop Around and Conference Circ uit Test,

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-1112TIE-TRK (Tie Trunk)
3
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order p resented in the table below whe n
inspecting errors in the s ystem. By clearing error cod es associated with the
Loop
Around and Conference Circ uit Test,
for example, you may also clear errors
generated from other tests in the testing sequence.
Notes:
a. ATMS test are not part of either sequence. They are run either on demand
with the test analog-testcall command or via the ATMS schedule.
NPE Crosstalk Test (#6)
One or more NPE reside on each circuit pac k with a TDM Bus interface. The NPE
controls port connec tivity and gain, and p rovides 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 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 20 to 30 second s 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
Loop Around and Conference Circuit Test (#33) X ND
Tie Trunk Seizure Test (#73)2, Tie Trunk Dial
Test (#747)3, Seizure Test (#73)4
2. Non-TN439 and non-TN497 circuit packs only
3. TN439 circuit pack only
4. TN497 circuit pack only
XXND
Tie Trunk EPF Test (#74)5
5. G3iV1.1-286 and G3iV2-386 only
XXND
Port Audit and Update Test (#36)6, Audit and
Update Test (#36)4
6. Non-TN497 circuit packs only
XXND
Analog Transmission Test (#844-848) (a) (a)