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DCP Operation
3-513910-A2-GN32-30 November 1996
To access Loc Digital Loop from the T
est branch, make the following selections:
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, T
est T
imeout
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 the Test
section in Chapter 4.
To exit this function and remain in the T
est 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 3-7 through 3-9).
Figure 3-7. Pattern Test and Local Analog Loopback Test