Operating A Continuity Loopback Test; Loopback Test For Bri Lines - Nortel Modular ICS 6.0 Installer's Manual

Nortel modular ics 6.0 digital system package

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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

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.

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

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.

Give notice that you are running a loopback

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

Modular ICS 6.0 Installer Guide