This test is destructive.
Note:
This test is executed only for DS1 Interface Media Modules that have been administered on the DS1 screen to provide echo cancellation. The 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 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).
