Lucent Technologies 555-233-119 MET Circuit and Conference Circuit Test (#57)

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-823MET-LINE (MET Line)
3
MET Circuit and Conference Circuit Test (#57)
The MET Circuit Test checks the amount of reflection from the MET loop around
circuitry and a Conferenc e Test. The Tone-Clock circuit p ack places a 1004-Hz
tone on a time slot that the port circ uit is listening on. A General Purpose Tone
Detector (GPTD) is connected to another time slot that the same port circuit is
talking on. The on-board microp rocessor places the p ort in the loop around
mode and the GPTD measures the level of the reflected sig nal.
The Conference Test is performed after the Circuit Test. The Conference Circuit
Test verifies that the NPE is able to listen to several test tones and correctly
conference them together, and the test is executed in two p arts. The first half of
the test checks the operation of the NPE’s first three conference channels. The
NPE is put in the loop around mode and instruc ted to talk on a selected time slot
and to listen to the 1004-Hz tone using the first t hree conference channels. The
signal level and noise level of the c onferenced output are then me asured using a
GPTD and checked to verify that they are within an ac ceptable rang e.
The second half of the Conference Test checks the op eration of the NPE’s
remaining four conference c hannels and follows the same proc edure as above.
0NO
BOARD The test could not relate the internal ID to the port (no board). This could be due to incorrec t 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 3-356. TEST #56 MET Electronic Power Feed Test — Continued
Error
Code
Test
Result Description/ Recommendation
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