Test Patterns; Sending Test Patterns; Monitoring 32767 Test Patterns - Paradyne 3350 User Manual

Test Patterns

Use the Test Pattern commands to send, monitor, and
abort test patterns. Only one test pattern can be active at a
time. Available test patterns are:
32767 – A pseudo-random bit sequence (PRBS)
that is 32,767 bits long. This is a PRBS 2
1-in-8 – A test pattern consisting of a one (1)
followed by seven zeros.

Sending Test Patterns

Use the Send command to start transmission of a test
pattern.
To send a test pattern,
1. From the top-level menu screen, select Test.
2. From the Test screen, select Ptrns.
Test:
Lpbk
F1
3. From the Patterns screen, select Send.
Patterns:
Abort
F1
3350-A2-GB20-10
15
–1 test.
Ptrns Lamp
F2 F3
Send Mon
F3
F2
June 1996
4. From the Patterns Send screen, press F1 to send a
32767 pattern or F2 to send a 1-in-8 pattern.
Patterns: Send
32767
F1
The Test Started screen appears.
Send: Name and Dest
Test Started
F1

Monitoring 32767 Test Patterns

The Monitor command provides the number of errors
detected in the 32767 test pattern.
To monitor a 32767 test pattern,
1. From the top-level menu screen, select Test.
2. From the Test screen, select Ptrns.
3. From the Patterns screen, select Mon.
Patterns:
Abort
F1
The Monitor screen appears with the error count.
If the maximum of 99999 is exceeded, OvrFlw
appears instead of the count. If the receiver loses
synchronization while the monitor is active, No
Sync appears.
Maintenance
1in8
F2 F3
F2 F3
Send Mon
F2 F3
4-19