User manual

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-837MMI-BD
3
TSI Crosstalk Test (#6)
This test is non-destructive. The Time Slot Interchanger (TSI) chip controls
connectivity to the TDM bus. The TSI Cross Talk Test verifies that this TSI talks on
the selected TDM bus time slot and never crosses over to time slots reserved for
other connections. If the TSI is not working correctly, one-way and noisy
connections may occur. If the test passes, then the TSI is able to communicate
over the TDM bus. This test is part of the circuit pack’s demand and scheduled
long test sequence, and takes approximately 20 to 30 seconds to complete.
Table 3-362. System Technician-Demanded Tests: MMI-BD
Order of Investigation
Short Test
Sequence
Long Test
Sequence
Reset Board
Sequence D/ND
1
1. D = Destructive, ND = Non-destructive
TSI Crosstalk (#6) X ND
TSI Looparound Test (#1108) X ND
MMI SYNC Status Test (#1123) X ND
MMI SYNC Status Test (#1122) X ND
Control Channel Looparound Test (#52)
2
2. Refer to the repair procedure described in XXX-BD (Common Port Circuit Pack) for a description
of this test.
XX ND
SAKI Sanity Test (#53)
2
XD
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Table 3-363. TEST #6 TSI Crosstalk Test
Error
Code
Test
Result Description/Recommendation
ABORT Internal system error. This is an abnormal abort.
1. Retry the command at 1-minute intervals a maximum of 5 times.
1002 ABORT The system could not allocate time slots for the test, the traffic load on the
system is very high, or the time slots are out-of-service due to TDM-BUS
errors. Refer to ‘‘TDM-BUS (TDM Bus)’’
to diagnose any active TDM Bus
errors.
1. If the system has no TDM-BUS errors and is not handling heavy traffic,
repeat the test at 1-minute intervals a maximum of 5 times.
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