Avaya S8700 Maintenance Manual page 78

Maintenance Object Repair Procedure
MET Circuit and Conference Circuit Test (#57)
This test checks two different port circuit functions. The Hybrid Circuit test
performs an analog reflective loop-around measurement on the port's hybrid
circuitry. The Conference Circuit test performs a conference test on the port's
NPE.
For Hybrid Circuit test results to be valid, a voice terminal must be connected to
the port being tested. The test instructs the on-board microprocessor to put the
port in analog reflective loop-around mode. The Tone-Clock circuit pack supplies
a 1004-Hz tone to the port's listen time slot and a GPTD (General-Purpose Tone
Detector) measures the level of the reflected signal appearing on port's talk time
slot.
The Conference test is performed only if the Hybrid Circuit test passes. The
Conference Circuit test verifies that the Network Processing Element (NPE) can
correctly conference several test tones together. The test is executed in two
parts. The first half of the test verifies operation of the NPE's first three
conference channels, and the second half verifies the NPE's remaining four
conference channels. The test puts the NPE in loop-around mode and instructs it
to talk on a specified time slot while listening to a 1004-Hz tone using the
Conference Channels. A GPTD then measures the signal and noise levels of the
conferenced output and reports whether or not these fall within a specified
acceptable range.
Table 8-332. Test #57 Hybrid Circuit and Conference Circuit Test
Error Test
Code Result Description / Recommendation
ABORT Could not allocate the necessary system resources to run this test.
1. Retry the command at 1-minute intervals up to 5 times.
1000 ABORT System resources required to run this test are not available. The port may be
busy with a valid call.
1. Use the display port UUCSSpp command to determine the station
2. If the port status is idle, then retry the command at 1-minute intervals up to
1001 ABORT System resources required to run this test were not available. This could be
due to a failure to seize the port.
1. Retry the command at 1-minute intervals up to 5 times.
8-774 Issue 1 May 2002
extension of the port. Use the status station command to determine the
service state of the port. If the port is in use, wait until the port is idle
before retesting.
5 times.
Continued on next page
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