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Table 629: Network Region Interconnectivity Test (#1417) 3 of 3
Error
Code
Test
Result
Echo Canceller Test (#1420)
This test is destructive.
Description / Recommendation
Echo Canceller Test (#1420)
2805 FAIL The number of pings received did not match the number sent (normally
one ping is sent). This means that no ping responses were received from
the destination region endpoint being tested back to the source endpoint
sending the ping.
PASS TCP/IP Ping test between network regions is successful.
3 of 3
Note:
Note: This test is executed only for USD1 circuit packs and DS1 Interface Media
Modules that have been administered on the DS1 screen to provide echo
cancellation. The circuit pack or media module must be busied out before this
test is run.
The Echo Canceller Test is part of the test board long demand test sequence of a UDS1
circuit pack or DS1 Media Module. The test checks echo cancellation on a subset of channels. If
any channel fails twice or if any two channels fail once, the test fails and echo cancellation is
bypassed on every channel of the board. Otherwise, the test passes and echo cancellation is
configured to the administered parameters.
This test runs on MG-DS1 (DS1 Interface Media Module) and UDS1-BD (UDS1 Interface Circuit
Pack).
Table 630: Echo Canceller Test (#1420) 1 of 2
Error
Code
Test
Result
Description / Recommendation
1015 ABORT The board is not busied out.
1. If the board is not in use, enter busyout board location
2. Retry the test.
1 of 2
Communication Manager Release 5.0 Issue 4 January 2008 2019