Test Commands, Remote Loopback Tests, For Networks

8. Testing

Test Commands

The test commands enable you to run loopbacks and test patterns on the DSU/CSU, and to test the front panel LEDs. These tests can help you isolate areas of trouble if you are having problems with your DSU/CSU.

To access all Test commands from the Test branch, press F2 to select Test from the top-level menu screen.

DSU ESF

Stat Test Cnfig

F1 F2 F3

Remote Loopback Tests

he Remote Loopback tests enable you to troubleshoot your circuit by sending the following to a far-end device:

For Networks

TLine loopback up activation sequence for 10 seconds (LLBUP) Line loopback down activation sequence for 10 seconds (LLBDN)

For Channels

V.54 activation sequence to initiate a V.54 Loop 2 (54UP)

V.54 deactivation sequence to terminate a V.54 Loop (54DN)

ANSI T1.403 (Annex B) activation sequence to initiate a DCLB on the remote

Tdevice (FT1UP)

ANSI T1.403 (Annex B) deactivation sequence to terminate a DCLB on the remote device (FT1DN)

You cannot perform remote loopbacks if any of the local loopbacks are active. If you attempt to do so, the error message Invld Test Combo (Invalid Test Combination) appears.

NOTE:

The following procedures are examples only. Screen displays may vary depending on the model and configuration of the DSU/CSU.

3160-A2-GB24-10

March 2001

8-5

3160-A4, 3161, and 3165-A4 specifications

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Paradyne 3161, and 3165-A4 manual Test Commands, Remote Loopback Tests, For Networks, For Channels

Models: 3160-A4 3161 and 3165-A4