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DID-TRK (Direct Inward Dial Trunk)
Issue 1 June 2005 905
Looparound and Conference Circuit Test (#33)
Note:
Note: S8300 / G700: This test aborts with Error Code 1412.
This test checks the reflective and non-reflective loop-around and conference capabilities of a
DID port circuit. The test that uses 404-, 1004-, and 2804-Hz tones is an on-board test only.
Each tone is separately transmitted to and from the port (loop around within the port) and
verified.
This test may fail due to noise induced by adjacent electric power lines. Resolve this problem
with the local power company. To temporarily alleviate the alarm caused by the failure of this
test, disable the test from the trunk administration Test field. This also disables the port
diagnostic test.
Any FAIL This test can fail due to off-board problems, including EXP-PN and
EXP-INTF faults RMC-ENV faults (
S8700 IP), TDM-BUS faults, and Tone
Detectors/Tone Generators. Clear every off-board problem before
replacing the board. A TDM-BUS problem is usually a faulty board or bent
pins on the backplane.
1. Resolve any EXP-PN and EXP-INTF, RMC-ENV (
S8700 IP), TDM-BUS,
TONE-BD, and TONE-PT errors in the error log.
2. Retest the board. Replace the board if the test fails.
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.
0
NO
BOARD
The test could not relate the internal ID to the port (no board).
1. Verify that the board’s translations are correct. Translate the board if
necessary.
2. Enter busyout board location.
3. Enter reset board location.
4. Enter release board location.
5. Enter test board location.
This should re-establish the linkage between the internal ID and the
port.
Table 308: Test #6 NPE Crosstalk Test (continued)
Error
Code
Test
Result
Description / Recommendation
3 of 3