EXFO FTB/IQS-88000 Series Power Blazer for FTB-2/2Pro/500/IQS-600 - Manual (Page 344)

Test Results
332 FTB/IQS-88000 Series
OTL-SDT

Longest Disruption indicates the longest measured disruption time.

Lanes with Disruption indicates the number of lanes with service
disruption.
Note: When a disruption event is equal or longer than the test period which is
fixed to 5 minutes, then the measured disruption time is equal to the test
period.