Operating A Continuity Loopback Test; Loopback Test For Bri Lines - Nortel ICS Install Manual

572 / Tests

Operating a Continuity loopback test

You start the Continuity loopback test by pressing the button
on the front of the DTI. Calls on all lines on the cartridge are
automatically dropped when a loopback test is invoked.
• The red LED above the button remains on until the test is
canceled.
• Invoking a continuity loopback test automatically cancels
any other test in progress.
• To stop the continuity loopback test, press the button on
the DTI. The red LED above the button turns off when the
test is canceled.

Loopback test for BRI lines

The loopback test for BRI lines loops the incoming BRI
payload back to the local exchange (service provider) for
evaluation of the transmission quality. Loopback tests should
be conducted only under the guidance of the service provider,
and the results from these tests are returned to the service
provider.
You can run loopback payload tests simultaneously on
multiple loops or multiple cards. The loop must be provisioned
to perform the test. All calls on the card you are testing will be
dropped at the start of a loop payload test.
Modular ICS 7.1 Installer Guide
Give notice that you are running a loopback
test.
Calls on all T1 or PRI lines on the DTI will be
automatically dropped when a loopback test is
invoked. Use the Page feature to notify people
using the system that a test is about to begin and
that calls will be disconnected.
Installer password required
Installer password required
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