4. Maintenance

Sending a Line Loopback Up or Down

Procedure

To send a Line Loopback Up or Down sequence on the network to a far-end

DSU/CSU:

1.From the top-level menu screen, select Test.

2.From the Test screen, select Rlpbk.

Test:

Rlpbk Lpbk Ptrns

F1 F2 F3

3.From the Rem Loopback screen, press F1 to select LLBUP (Line Loopback Up), or press F2 to select LLBDN (Line Loopback Down).

Rem Loopback:

LLBUP LLBDN 54UP

F1 F2 F3

The Line Loopback sequence is sent up or downstream to the far-end

DSU/CSU for 10 seconds. During this time, Sending appears on Line 2 of the

LCD, followed by Command Complete when 10 seconds have elapsed.

You can press any function key to restore the Rem Loopback screen without affecting transmission of the loopback code.

4-20

February 2001

3160-A2-GB21-90

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Paradyne 3160-A3, 3165-A2, 3164-A2, 3161-B3 manual Sending a Line Loopback Up or Down, Dsu/Csu