Avaya S8700 Maintenance Manual page 1020

Maintenance-Object Repair Procedures
ATM Board DSP Test (#1293)
Nondestructive
There are three kinds of digital signal processors (DSPs): talkers, listeners, and
echo cancelers.Talkers put data on the TDM bus, listeners take data off the TDM
bus, and echo cancelers filter out echoes of the main transmission. Firmware
allocates DSPs in sets of three (one of each type), up to a maximum of 8 sets.
This has three parts, one for each type of DSP. If the test fails for every DSP, a
MAJOR alarm is raised. If the test fails for one or more DSPs, a MINOR alarm is
raised. If a DSP is busy, the test passes for that DSP. The test aborts if system
resources are not available. Each part of the test returns the number of DSPs that
passed or failed. This test run during initialization, error analysis testing, periodic,
scheduled, and craft short and long testing.
Table 8-131. ATM Board DSP Test (#1293)
Error Test
Code Result Description / Recommendation
1002 ABORT Could not allocate time slots. Traffic could be heavy or time slots could be
out-of-service.
1. Run display errors, and follow associated repair procedures for
2. Retry the command up to 3 times at 1-minute intervals.
1003 ABORT Could not allocate a Tone Detector. Too few Tone Detectors present or Tone
Detectors out-of-service.
1. Run display errors, and follow the repair procedures associated with any
2. Verify that there is at least one Tone Detector in the EPN that holds the
3. Resolve any TONE-PT (Tone Generator) errors listed in the Error Log.
4. Retry the command up to 3 times at 1-minute intervals.
1962 ABORT Every DSPs is busy. This is a very unlikely event.
1. Retry the command up to 3 times at 1-minute intervals.
8-298 Issue 1 May 2002
TDM-BUS.
TTR-LEV (TTR Level) errors that appear.
ATM-TRK circuit pack.
Continued on next page
555-233-143