Test Branch
8-7
3910-A2-GN32-40
September 1998
F1
Test:
Loc_Digital_Loop
F2
F3
Press the
key until Loc_Digital_Loop appears. Press any function key to start this test.
F1
Test:Digitl Loop
Started
F2
F3
The message Started appears on the LCD and the Test LED lights. 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 display. 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.
Pattern
Pattern can transmit and receive a 511 bit error rate test pattern. It can also be used with a
currently running local analog loopback or a remote digital loopback to simulate data passing
through the modem. You will need to start the local analog or remote digital loopback test before
you start the pattern test. For this test to operate properly, the modems must be online and in
Synchronous or Asynchronous Direct mode (Figures 8-4 through 8-6).
Figure 8-4. Pattern Test and Local Analog Loopback Test
