Paradyne 336x E1 Sending Test Patterns, Loopback Abort All, Llb Plb, Patterns Abort Send Mon

Maintenance

4.From the Loopback Abort screen, press the desired Function key to abort All or one specific loopback test. Use the scroll keys, if necessary.

Loopback: Abort

All	LLB	PLB
F1	F2	F3

If you select ALL, LLB, PLB, DLB, or RLB, skip Step 5.

5.From the Abort screen, press the Function key that corresponds to the port for which you want to abort the test. Use the scroll keys, if necessary.

Abort: Test Name

Prt1	Prt2	Prt3
F1	F2	F3

When abort is complete, the message Command Complete appears on the Abort screen.

NOTE

Be careful when selecting a specific loopback test to abort. If you mistakenly choose to abort a loopback test that is not currently running, a Command Complete message will still display and the loopback that is currently active will still be running. You can use the TStat branch of the menu to view the test status to determine if the abort was successful.

Test Patterns

Use the Test Pattern commands to send, monitor, and abort test patterns. Available test patterns are:

•32767 ± A pseudo-random bit sequence (PRBS)

that is 32,767 bits long (on the network only). This is a PRBS 215±1 test.

•511 ± A pseudo-random bit sequence (PRBS) that is

511 bits long (on the data ports only). This is a PRBS 29±1 test.

•1-in-8± A test pattern consisting of a one (1) followed by seven zeros (on the network only).

•QRSS ± A quasi-random signal source approximating live data that can be monitored for logic errors (on the data ports only).

Sending Test Patterns

Use the Send command to start transmission of a test pattern.

Only one test pattern can be active at a time on one port. Table 4-10lists the valid send test pattern combinations. Valid combinations are identified by YES.

To send a test pattern,

1.From the top-level menu screen, select Test.

2.From the Test screen, select Ptrns.

Test:
Rlpbk	Lpbk	Ptrns
F1	F2	F3

3. From the Patterns screen, select Send.

Patterns:

Abort Send Mon

F1 F2 F3

3360-A2-GB20-20 December 1996 4-21