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DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-184ATM-EI (Expansion Interface Circuit Pack)
3
Listener and echo cancelers are tightly coupled because firmware allocates
sets
of DSPs. Since there are a total of 24 DSPs on the board, there may be up to 8
triplets allocated.
If the test fails for all DSPs, a MAJOR alarm is raised against the board. If the test
fails for one or more DSPs, a MINOR alarm is raised. If a DSP is “busy,” the test
for that particular DSP is considered passed. The test aborts if the system
resources (for example, the TDM time slots, tone generator, and others) are not
available.
This test applies to TN2305 and TN2306 ATM-EIs, both active and standby, and
is run as part of craft short and long testing, periodic, scheduled, initialization,
and error analysis testing. Refer to Figure 3-8
for a diagram of this looparound
test.
Figure 3-8. ATM Board DSP Test (#1293)
Table 3-77. ATM Board DSP Test (#1293)
Error Code
Te st
Result Description/ Recommendation
1002 ABORT The system could not allocate time slots for the test. The system
may be under heavy traffic conditions or it may have time slots
out of service due to TDM-BUS errors.
1. If system has no TDM-BUS errors and is not handling heavy
traffic, retry the command at 1-minute intervals a maximum of
3 times.
Continued on next page
ATM
circuit
pack
iodfatmdAWF 040699
DSP echo
DSP listener
CCMS
CCMS
DSP talker
Tone detector
TDM bus
(PN X)
Tone clock
Tone detector