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Test Branch
8-53910-A2-GN32-40 September 1998
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 the Test section in Chapter 4. A
Ring Indicate during this test can cause errors.
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.
Rem Digital Loop
This test is not available when using TMp modulation or Remote mode.
Rem Digital Loop performs a remote digital loopback (ITU-T V.54 Loop 2), Figure 8-2. This test
can verify the integrity of the local modem, the communication 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 operating at the same rate and in
Synchronous or Asynchronous Direct mode.
Figure 8-2. Remote Digital Loopback
To access Rem Digital Loop from the Test branch, make the following selections:
F1
Test:
Rem_Digital_Loop
F2
F3