EXFO FTB-800 Series for FTB-1 - Manual (Page 116)

Test Setup - Test Configurator, Timer, and System
106 FTB-700G/800 Series
BERT
Multi-Pattern Configuration
Note: Multi-Pattern Configuration is only available for DSN/PDH BERT test
application with DS1 signal (DS0 disabled) and when the pattern is
Multi-Pattern.
This feature allows sending each pattern for a specific duration,
sequentially and continuously.

Pattern represents a sequence of patterns that will be generated: 1111,
1in8, 2in8, 3in24, and QRSS.

Enable allows enabling the generation of each pattern individually in
the pattern sequence. All patterns are enabled by default. All 1’s (1111)
is disabled for Unframed test.

Individual Pattern Duration specifies the transmission duration of
each pattern: 15 s, 30 s, 45 s, 1 min, 2 min, 3 min (default),... up to
15 min.
Restore < Test Application > Defaults
Reverts the current test application to its default factory settings.