Avaya G450 Installing And Upgrading page 269

8. Step through Table 29
Table 29: DS1 Bit-error count troubleshooting
Condition
The value of the Bit-error count field is
greater than 1
The value of the Bit-error count field is 1
9. Type test ds1-loop location end-loopback/span-test to end the test.
Wait about 30 seconds for the DS1 to reframe on the incoming signal and clear DS1 facility
alarms. Use Table 30
Table 30: Evaluation of DS1 CPE loopback and service provider test results
Condition
Loopback termination fails
with an error code of 1313
Loopback termination still
fails
The DS1 cannot frame on
the incoming span's signal
after the loopback jack power
down
The span failed the service
provider's loopback test
The service provider
successfully loop tested the
span, up to the smart jack
You cannot locate and repair
the problem in the time
available and must terminate
the test
The test terminated normally
to troubleshoot.
to evaluate the test results and to determine the solution.
Solution
The span is still looped somewhere, possibly at the
loopback jack, at the MM710, or somewhere in the
network.
Replace the DS1 circuit pack, and repeat the test.
Either there is something wrong with the receive
signal into the loopback jack from the dumb block
or the smart jack, or there is something wrong with
the MM710 media module itself. To rule out the
MM710 media module, insert a transmit to receive
loop around and verify that the MM710 can frame
to its own signal.
The problem is in the service provider's network.
If the MM710 media module successfully passes
the CPE Loopback Jack test, then the wiring
between the loopback jack and the smart jack is
suspect. Test and make repairs as needed.
The test will not terminate normally in the absence
of a good framing signal. You have to reset the
circuit pack. Enter reset board XXXVS.
Proceed with step 10.
DS1/T1 CPE loopback jack
Solution
Replace the DS1 circuit pack, and
retest.
The test passed.
Issue 2 June 2008 269