EXFO FTB/IQS-88000 Series Power Blazer for FTB-2/2Pro/500/IQS-600 - Manual (Page 130)

Test Setup - Test Configurator, Timer, and System
118 FTB/IQS-88000 Series
EtherBERT, FC BERT, and Unframed BERT
Service Disruption
Note: Not available for FC BERT.

No Traffic Time (ms) represents the time between two Ethernet
Frames that is acceptable without raising an alarm including a Service
Disruption event: 0.005 ms to 1000 ms in step of 0.005 ms (default is
50 ms).

Disruption Monitoring check box when selected (disabled by
default) enables the disruption time measurements. However, the
measurement will only start if the test is already started, or when the
test will be started.
Note: Clearing the Disruption Monitoring check box will stop the measurement
without clearing the results. The disruption monitoring is automatically
stopped without clearing results when the test is stopped. However, starting
the test again while the Disruption Monitoring check box is selected will
reset the results before restarting.

Pass/Fail Verdict allows to enable and configure the SDT Threshold.

SDT Threshold allows to configure the amount of time with no traffic
that is accepted before failing the test: 0.005 to 299999.995 ms in step
of 0.005 ms (default is 50 ms). The threshold value cannot be less than
the No Traffic Time value.
FC Frame
Note: Only available with FC BERT.
Frame Size (Bytes) allows to enter the frame size (in step of 4 bytes) for FC
BERT test application: 40 to 2148 bytes (default). However the minimum
frame size is 64 bytes when the Latency Tag check box is selected.