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COMSPHERE 3800 Series Modems
8-6 November 1996 3810-A2-GB30-20
Pattern
Pattern can transmit and receive a 511 bit error rate test
pattern. It can also be used with a local analog loopback
or a remote digital loopback to simulate data passing
through the modem. For this test to operate properly, the
modems must be online and in Synchronous or
Asynchronous Direct mode. Otherwise, the message
Invalid:Bffr Mde
appears when this test is started. (See
Figures 8-4 through 8-6.)
Figure 8-4. Pattern Test and Local Analog Loopback Test
Figure 8-5. Pattern Test and Remote Digital Loopback Test