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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-482DIG-LINE (Digital Line)
10
Digital Line NPE Crosstalk Test (#9)
One or more Network Processing Elements (NPEs) reside on each circuit pack
with a TDM Bus interface. The NPE controls port connectivity and 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 noisy connections may be observed. This test is
part of a port’s Long Test Sequence and takes about 20 to 30 seconds to
1015 ABORT The system will not allow this test to be run because the
station is/has not been busied out. Busy out the station
with the /E3busyout station/E1 command.
16 FAIL The secondary channel (data Information Channel 2 or
I2 is not operating properly. User impact may range
from noticing nothing to not being able to use this
terminal. Check the results of "Voice and Control
Channel Local Loop Test (#13). If that test fails, suspect
the Digital Line circuit pack. If that test passes then
replace the terminal. If both test fail, and component
replacement does not change the results, then:
1. Run circuit pack tests to check the tone generator
circuit pack and the Tone Detector circuit pack
using the test board UUCSS s command.
2. Resolve any problems that are detected on the Tone
Generator circuit pack or Tone Detector circuit pack.
3. If the Tone Generator and Tone Detector circuit pack
are functioning properly, and the tests still fail,
escalate the problem.
PASS Voice and Control Channel Local Loop test passed. All
channels are transmitting properly.
1. To be sure that this is not an intermittent problem,
repeat this test up to a maximum of ten times to
make sure it continues to pass.
2. If complaints persist (noisy connections for voice.
corrupted data transfer for data), examine the
station, connections, and wiring.
Table 10-129. TEST #1201 Digital Terminal Remote
Loop Around Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page