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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-933MMI-BD
10
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.
1. D = Destructive, ND = Non-destructive
2. Refer to the repair procedure described in XXX-BD (Common Port Circuit Pack) for a description
of this test.
Table 10-265. System Technician-Demanded Tests: MMI-BD
Order of Investigation
Short Test
Sequence
Long Test
Sequence
Reset Board
Sequence D/ND
1
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
XX ND
SAKI Sanity Test (#53)
2
XD
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Table 10-266. 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” 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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