EXFO FTB-8500 Series for FTB-500 - Manual (Page 453)

Expert Mode Tabs
Ethernet and Fibre Channel Application 439
Pattern (BERT)
Pattern (BERT)
Press TEST, Expert Mode, and Pattern.
Enable Criteria: Enable Criteria enables configuring the Pattern pass/fail
threshold values and parameters (Port 1 and Port 2 for Dual Ports on
FTB-8510B). This setting is disabled by default.
Alarms
Enter the threshold value for each alarm: Pattern Loss and No Traffic.

Status: Indicates the real-time pass/fail condition.
Grey LED: Indicates that Expert Mode is disabled or the test did not
run yet.
Green LED: Indicates that the threshold is respected (Pass).
Red LED: Indicates that the threshold is not respected (Fail).

Unit: The unit is Second.