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 Por t NPE Cro sstal k Test(#1 103) faile d.
c. The VC DSP Port Local TDM Loopback Test(#1104) failed. Run the Long
Test Sequence.
d. A critical hardware fai lure has been detected on the circuit pac k. 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 pac ks.
f. The VC DSP Port DSP Loop ba ck Test ( #1105 ) fai led.
g. The DSP corresponding to this por t 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 p resented in the table b elow. By clearing
error codes associated with the DSP NPE Crosstalk Test, for example, you may
also clear errors generated from oth er tests in the testing sequenc e.
VC DSP Port NPE Crosstalk Test (#1103)
This test is destructive.
The NPE controls port connectivity and g ain and provides conferencing
functions. The NPE Crosstalk test verifies that this port’s NPE channel talks on the
selected time slot and n ever crosses over to time slots reserved for other
connections. If the NPE is not working correc tly, one-way and noisy connections
may be observed. This test is p art of the port’s long test seq uence and takes
approximately 20 to 30 second s to complete.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND1
1. D = Destructive; ND = Nondestruc tive
DSP NPE Crosstalk Test (#1103) X D
TDM Loopback Test (#1104) X X D
DSP Loopback Test (#1105) X X D