Paradyne 3800PLUS 4. Pattern Test and Local Analog Loopback Test, 6. End-to-End Pattern Test

COMSPHERE 3800Plus Modems

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 7-4 through 7-6.)

Figure 7-4. Pattern Test and Local Analog

Loopback Test

Figure 7-5. Pattern Test and Remote Digital Loopback Test

Figure 7-6. End-to-End Pattern Test

7-6 November 1996 3980-A2-GB30-20