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DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-1262VC-DSPPT
3
Notes:
a. This port has been busied out by the
busyout port PCSSpp
command.
b. The VC DSP Port NPE Crosstalk Test(#1103) failed.
c. The VC DSP Port Local TDM Loopback Test(#1104) failed. Run the Long
Test Sequence.
d. A critical hardware failure has been detected on the circuit pack. Reset
the port by the
busyout port PCSSpp
and
reset port PCSSpp
commands. If the VC Reset DSP Test (#1106) passes, then the on-board
circuitry is healthy. Retire the alarm with the
test port PCSSpp long clear
command.
e. The VC DSP port reported loss of framing on the Service Channel between
the VC and MMI circuit packs.
f. The VC DSP Port DSP Loopback Test (#1105) failed.
g. The DSP corresponding to this port on the VC circuit pack reported a
firmware error. No action is required.
System Technician-Demanded Tests:
Descriptions and Error Codes
Always investigate tests in the order presented in the table below. By clearing
error codes associated with the DSP NPE Crosstalk Test, for example, you may
also clear errors generated from other tests in the testing sequence.
VC DSP Port NPE Crosstalk Test (#1103)
This test is destructive.
The NPE controls port connectivity and gain and provides conferencing
functions. The NPE Crosstalk test verifies that this port’s NPE channel talks on the
selected time slot and never crosses over to time slots reserved for other
connections. If the NPE is not working correctly, one-way and noisy connections
may be observed. This test is part of the port’s long test sequence and takes
approximately 20 to 30 seconds to complete.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive; ND = Nondestructive
DSP NPE Crosstalk Test (#1103) X D
TDM Loopback Test (#1104) X X D
DSP Loopback Test (#1105) X X D