Filter
Top Products
MEDPROPT (TN802/TN2302/TN2602 MED PRO DSP PORT)
Issue 1 June 2005 1557
DSP Port TDM Loop-Around Test (#1380)
This test is nondestructive.
This test sets up a loop-back path from the TDM bus out to the NIC edge of the Media
Processor and back to the TDM bus. The loop back is established by setting up the outbound IP
connection to send IP packets to the MedPro’s own IP address. The tone generator places a
test tone (440Hz) onto a timeslot. The timeslot is listened to by the Media Processor board. The
tone is routed through the board’s DSP farm, where it may undergo transcoding to G.723, etc.
The tone is looped back at the Network interface and back through the board where it is
converted back into standard PCM. The tone is placed onto a TDM timeslot and detected by a
tone detector port. The test passes if 440Hz is reported by the tone detector.
Table 574: DSP PORT TDM Loop-Around Test (#1380)
Error
Code
Test
Result
Description / Recommendation
1002 ABRT The system could not allocate timeslots for the test. The system may be
under heavy traffic conditions, or it may have timeslots out of service due
to TDM-BUS errors.
1. If the system has no TDM-BUS errors and is not handling heavy
traffic, retry the command at 1-minute intervals up to 3 times.
2. If the system has TDM-BUS errors, clear any errors, and retry the
command at 1-minute intervals up to 3 times.
3. If the command continues to abort, escalate the problem.
1003 ABRT The system could not allocate a tone receiver for the test. The system
may be oversized for the number of Tone Detectors present, or some
Tone Detectors may be out of service.
1. Resolve any TTR-LEV errors. Even if there are no TTR-LEV errors,
there may not be a Tone Detector available on the network that
contains the circuit pack being tested. Verify that there is at least one
Tone Detector on this network. This does not harm the system.
2. Resolve any TONE-PT errors.
3. If neither condition exists, retry the command at 1-minute intervals up
to 3 times.
1014 ABRT Board not inserted.
2000 ABRT Response to the test was not received in the allowable time period.
1. Retry the command at 1-minute intervals up to 3 times.
1 of 2