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Running a Local Loopback
Running a Remote Loopback
Ending a Loopback
7900-A2-GB20-00
Procedure
To run a local loopback:
1. Type l (for local) at the Select local or remote –> prompt and press Enter.
A screen appears and you are prompted to enter an xTU id.
2. Enter the number of the xTU-C you are performing loopback testing on and
press Enter.
The following message appears:
I HTU C/R
State change received from DSL 7
HTU-C loopback is ON
The MTU-M prevents loopback tests from being run for 1 minute after power is
initially applied to the MTU-M or system reset is performed.
Procedure
To run a remote loopback:
1. At the Select local or remote –> prompt, type r (for remote) and press Enter.
A screen appears and you are prompted to enter an xTU id:
2. Enter the number of the xTU-C you want to perform loopback testing on and
press Enter.
The following message appears:
I HTU C/R
State change received from DSL 7
HTU-R loopback is ON
To stop a local or remote loopback test, repeat the steps in
Loopback
Running a Remote Loopback
and
A message stating that the xTU-C/R loopback test is off appears.
March 1998
HSTATUS TASK
HSTATUS TASK
.
Testing
MON JAN 1 01:29:05 1997
MON JAN 1 01:35:10 1997
Running a Local
9-3
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