Digicom 3911, 3910 operation manual Loc Digital Loop, TestRemote Loop Started

COMSPHERE 3900 Series Modems

Press the key until Rem_Digital_Loop appears. Press any function key to start this test.

Test:Remote Loop

Started

F1 F2 F3

The message Started appears on the LCD, and the Test LED lights for the duration of the test. If Invalid Command appears on the LCD, another test is in progress. Select Abort to clear the current test and try again. If the Test Timeout configuration option is enabled, Test Timeout appears at the conclusion of the test. If it is disabled, the test operates until aborted. For more information on the Test Timeout configuration option, refer to Test in Chapter 5, DCP Configuration.

To exit this function and remain in the Test branch, press the key. To exit and return to the

Top-Level menu, press the key.

Loc Digital Loop

Loc Digital Loop is issued by a local modem and forces it to loopback any data received from the remote modem (Figure 8-3). (This test operates the same as a ITU-T V.54 Loop 2 except it is issued at your modem.) This is useful if a remote modem is incapable of initiating a remote digital loopback from its location. For this test to operate properly, the modems must be operating at the same rate and in Synchronous or Asynchronous Direct mode.

Figure 8-3. Local Digital Loopback

To access Loc Digital Loop from the Test branch, make the following selections:

8-6 September 1998 3910-A2-GN32-40