DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1048MET-LINE (MET Line)
9
MET Circuit and Conference Circuit Test (#57)
This test checks two different port circuit functions. The Hybrid Circuit test
performs an analog reflective looparound 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 looparound mode. The Tone-Clock circuit pack supplies
a 1004-Hz tone to the port’s listen time slot and a General Purpose Tone Detector
(GPTD) 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) is
able to 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.
0NO
BOARD
The test could not relate the internal ID to the port (no board). This could be
due to incorrect translations, no board is inserted, an incorrect board is
inserted, or an insane board is inserted.
1. Check to ensure that the board translations are correct. Use the list config
command, and resolve any problems that are found.
2. If the board was found to be correctly inserted in step 1, issue the busyout
board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board long command. This should re-establish the linkage
between the internal ID and the port. If this is not the case, check to ensure
that there is a valid board inserted.
Table 9-415. TEST #56 MFAT Electronic Power Feed Test — Continued
Error
Code
Tes t
Result Description/ Recommendation
Continued on next page
