Paradyne 3800PLUS manual Rem Digital Loop, 2. Remote Digital Loopback, AT Command Equivalent

COMSPHERE 3800Plus Modems

Rem Digital Loop

Rem Digital Loop performs a remote digital loopback (CCITT V.54 Loop 2), Figure 7-2. This test can verify the integrity of the local modem, the communications link, and the remote modem. Any data or pattern entered at the local DTE is sent to and returned from the remote modem. For this test to operate properly, the modems must be online and in Synchronous or Asynchronous Direct mode and, if set for V.34 modulation, must not be in Asymmetric Rate mode.

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

Test :

Rem_Digital_Loop

F1 F2 F3

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 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 the Tests section in Chapter 7.

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.

AT Command Equivalent

The AT command for Remote Loopback is &T6.

Figure 7-2. Remote Digital Loopback

7-4 November 1996 3980-A2-GB30-20