NEC Univerge sv8500 Manual page 2714

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Remote Loop-Back

This test loops the signals arrived from the remote office directly back to the remote office so that the

remote office can verify that the line is working properly (the transmission line between the DLI/DAI

and the DRU/DAU) by remote loop-back test. The self office sets loop-back, but cannot verify that line

is working properly.

In case transmission equipment is provided between the DLI/DAI and the DRU/DAU, this test is to be

set in answer to a loop-back request from the transmission equipment.

When remote loop-back is set on the DLI/DAI

Telephony Server

When remote loop-back is set on the DRU/DAU

Telephony Server

Remote Loop-Back

TERMINAL-RELATED DEVICES

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