Avaya S8700 Maintenance Manual page 1276

Maintenance-Object Repair Procedures
Voice and Control Channel Local Loop Test (#13)
These tests check the information and control channels between the media server
and the Digital Line port circuit. The media server sends a message to loop
around both the port's information and control channels.
1. First, the primary information (voice) channel's loop-back test is run.
The test is performed by sending a digital count from the Tone-Clock circuit
on the primary information channel's time slot and receiving the same
digital count with a General-Purpose Tone Detector.
2. While the primary information channel is still looped around, the Control
Channel Loop-Around test is run.
This test consists of sending four different transparent patterns to the
on-board microprocessor, receiving them back, and comparing them.
3. Then, the secondary information (data) channel's loop-around test is run.
This is the same test as the primary information channel's loop-around test
and is performed only if a DTDM is administered.
4. Next, a Conference test is run for the primary information channel.
This is the same test as Conference test (#6).
This 4-test sequence only generates one value (Pass, Fail, or Abort). If any test
fails or aborts, the sequence stops.
Table 8-223. Test #13 Voice and Control Channel Local Loop Test
Error Test
Code Result Description / Recommendation
ABORT Internal system error
1. Retry the command at 1-minute intervals up to 5 times.
1000 ABORT System resources required to run this test are not available. The port may be
busy with a valid call.
1. Use display port UUCSSpp to determine the station extension or
2. If the port status is idle, retry the command at 1-minute intervals up to 5
1001 ABORT System resources required for this test are not available.
1. Retry the command at 1-minute intervals up to 5 times.
8-554 Issue 1 May 2002
attendant number of the port. Use status station or status attendant to
determine the service state of the port. If the port is in use, wait until it is
idle before testing. Attendants are always in use (off-hook) if the handset
is plugged in and the port is not busied out.
times.
Continued on next page
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