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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-815MET-LINE (MET Line)
10
MET Circuit and Conference Circuit Test (#57)
The MET Circuit Test checks the amount of reflection from the MET loop around
circuitry and a Conference Test. The Tone-Clock circuit pack places a 1004-Hz
tone on a time slot that the port circuit 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 microprocessor places the port in the loop around
mode and the GPTD measures the level of the reflected signal.
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 parts. The first half of
PASS EAF Test passed. The message to turn on the power to the station was
successfully sent to the port.
1. Although this test never returns a FAIL result, after running this test,
the Error Log should be checked for any entries with Error Type
257 to examine the real results of this test.
2. If Error Type 257 does not appear in the Error Log within 10
seconds after completion of this test, it is safe to assume that the
test sensed no problems with the power to the station. To verify that
the station is powered up correctly, run a self-test on the station, if
available, and check that all the feature buttons are operating.
3. If Error Type 257 appears in the Error Log, this indicates some
problem with the power to the station. The system technician
should check for a short in the wiring, a damaged jack, a defective
voice terminal, or an incorrect type of terminal.
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 10-273. TEST #56 MET Electronic Power Feed Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page