User`s guide

Section 360−381−C02

Use the following steps to enable/disable the test.

Step Action System Response

1. Select the channel number(s) on any card you

want to test. Use the <Tab> key to highlight the

channel and <Enter> to select the channel

Flags the channel you have selected. Only chan-

nels capable of using this test will be shown

2. Select Apply New Settings to enable the test.

Press <q> to exit the menu without saving your

changes

The test tone is applied momentarily to the se-

lected channel to validate the channel operation.

4.9 Loopback Test (FXO/FXS/EM − Primary T1 Only)

Use the Loopback tests to check where on the line problems are occurring when an alarm is reported on the card.

This test loops the drop input back toward the network (network loopback), for FXS and FXO cards. E&M card

loopbacks are bidirectional (both local and network loopbacks).

Figure 12. Loopback Test menu

Use the following steps to enable/disable the card loopback.

Step Action System Response

1. Select which card you want to test (Card 1, Card 2

or half size module)

Displays your choice

2. Select the channel number you want to test. Use

the <Tab> key to highlight the channel number and

<Enter> to select the channel

Flags the channel

3. Select to enable or disable the test. Enable starts

the test, and Disable stops it

Displays your choice

4. Select Apply New Settings to save your choices.

and enable/disable the loopback

If you have chosen to enable the loopback, this will

start the test. You will have to go back into this

menu and select Disable to end the test.