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Communication Manager Maintenance-Object Repair Procedures
1206 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
Expansion Interface 2-Way Transmission
Test (#241)
This test is nondestructive. The EI 2-way transmission test is a basic connectivity test between
two PNs. The test first sends dial tone from the cabinet of the EI circuit pack under test through
the Center Stage Switch, through the DS1 converter circuit packs, and through another EI
circuit pack to a tone detector in the other cabinet. The connections are then reversed and the
tone is passed in the opposite direction. If the system is equipped with a Center Stage Switch,
and this test either fails or aborts with the above connection, a second PN is chosen (if one is
available and the EI circuit pack is In-Service) and the same test is run on this new connection.
This helps in the isolation of the fault. Since two EI circuit packs are involved in the connection,
either one of them could be at fault and this repeated test can help determine which one is
actually at fault.
The path used in this test is represented in Figure 67: Two-Way Circuit Switch Transmission
Test .
Figure 67: Two-Way Circuit Switch Transmission Test
Table 412: Test #241 Expansion Interface 2-Way Transmission Test
Error
Code
Test
Result
Description / Recommendation
1002 ABRT 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. Enter display errors and follow
the repair procedures for TDM-BUS errors.
1. If the system has no TDM-BUS errors and is not handling heavy
traffic, retry the command at 1-minute intervals up to 3 times.
1 of 5
Clock
Clock
Tone
Tone
Tone
Tone
TDM BUS (PN Y) TDM BUS (PN X)
CSS
(Optional)
EXP-INTF EXP-INTF
Detector
Detector