Lucent Technologies R5SI Computer Hardware User Manual


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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 10-918MODEM-PT (Modem Pool Port)
10
Modem Pool Conference Test (#97)
This test is destructive.
This test checks most of the switching and gain control functions provided by the
NPE circuit in the analog section of the conversion resource. This test
conferences a 1004-Hz tone through the NPE, looping it back so that it can be
verified with a Tone Detector circuit.
NONE FAIL The test failed. This error is internal to the Pooled
Modem circuit pack and does not involve external
equipment or interfaces.
1. Busyout both of the TN758 Pooled Modem
conversion resources on the circuit pack containing
the failing conversion resource.
2. If the test continues to fail, replace the Pooled
Modem circuit pack and retest.
3. If the circuit pack fails after replacement, escalate
the problem.
ANY FAIL The NPE of the tested port was found to be transmitting
in error. This condition causes noisy and unreliable
connections.
1. If the remaining ports are currently not in use (that is,
yellow LED is off), attempt to reset the circuit pack.
Then repeat the test.
2. If the test fails again, replace the circuit pack.
PASS The port is correctly using its allocated time slots.
User-reported troubles on this port should be
investigated using other port tests and by examining
station, trunk, or external wiring.
Table 10-260. TEST #96 Modem Pool NPE Crosstalk Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page