Loc Analog Loop - Paradyne Comsphere 3920Plus Installation And Operation Manual

COMSPHERE 392xPlus Modems

Loc Analog Loop

This test is not available when using V.34 modulation with the mux enabled.
Loc Analog Loop performs a local analog loopback (CCITT V.54 Loop 3), Figure 3-4, that verifies
modem operation as well as the connection between the DTE and modem. The modem must be
offline and in Synchronous or Asynchronous Direct mode to perform this test, otherwise Invalid
Command appears.
To access Loc Analog Loop from the Test branch, make the following selections:
Press the
3-56
If you are performing a Local Analog Loop test on a TMp modulation
that is running a test pattern with a constant flow of data, you must
toggle the RTS switch off and then on to allow the modem to train
up.
Figure 3-4. Local Analog Loopback
Test:
Loc_Analog_Loop
F1 F2 F3
key until Loc Analog Loop appears. Press any function key to start this test.
Test:Local Loop
Started
F3
F1 F2
April 1995
NOTE
3920-A2-GN31-10