Avaya MultiVantage, Руководство по установке

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DS1/T1 CPE loopback jack
555-233-116
140
Issue 4 October 2002
Running the data test
NOTE:
If you have a G700 Media Gateway, substitute XXXVS for UUCSS in the
following command, where XXX is the administered number of the G700 (for
example, 002), and VS is the slot number on the G700 of the Media Module
(for example, V3). The V is not a variable and needs to be included in the
command exactly where shown. A sample address for a DS1 circuit pack on
a G700 Media Gateway might look like this: 002V3.
1. Display the bit error count. At the management terminal, enter list meas
ds1 sum UUCSS, where UU is the cabinet number, C is the carrier letter,
and SS is the slot number of the DS1 board.
2. Step through Table 15 to troubleshoot.
Table 15. DS1 Troubleshooting
Condition Solution
The value of the Test: cpe-loopback-
jack field is Pattern 3-in-24 The loopback jack test is active.
The value of the Synchronized field is N Retry the test 5 times.
The value of the Synchronized field
remains N after 5 tries. Excessive bit errors are likely. Check for
intermittent connections or broken wires in an
SPE receive or transmit pair, and repair as
necessary. Then repeat step
1 .
The value of the Bit-error count field is
non-zero Repeat step 1 several times.
The value of the Synchronized is Y The DS1 circuit pack has synchronized to the
looped 3-in-24 pattern and is counting bit
errors in the pattern.
The value of the Bit-error count field
pegs at 75535 or increments by 100s or
1000s each time you repeat step
1 .
Suspect loose or corroded connections,
severe crosstalk, or impedance imbalances
between the two conductors of the receive or
transmit pair. Wiring may need replacement.
The value of the Bit-error count field
is 0 There are no obvious wiring problems. Verify
this by repeating step
1 at 1-minute to
10-minute intervals until you are certain.
If the test reports no errors for 1 minute, the
error rate is less than 1 in 10
8
. If the test
reports no errors for 10 minutes, the error
rate is less than 1 in 10
9
.
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