CO-TRK (Analog CO Trunk)
Issue 1 June 2005 855
7
129
131
133
FAIL If the Looparound and Conference Circuit test (#33) fails for every port on a
circuit pack, a -5 Volt power problem is indicated. To investigate problems
with a power unit, see CARR-POW (Carrier Power Supply)
on page 770 or
RMC-ENV (Power/Fan Sensors)
on page 1951.
If a red LED is lit on the power unit circuit pack, replace the pack.
If the test fails on more than 1 port, check for errors on the TONE-BD or the
TONE-PT. If errors, take appropriate actions. When the tone errors are
cleared, rerun the test.
S8700 MC: if the test fails again, see Fault Isolation Using Duplicated
PNC on page 1862.
PASS CO Trunk Looparound and Conference test is successful. User-reported
troubles on this port should be investigated by using other port tests and by
examining 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 291: Test #33 Looparound and Conference Circuit Test (continued)
Error
Code
Test
Result
Description / Recommendation
4 of 4