Exfo FTB-700 for FTB-1 Instrukcja Użytkownika Strona 254

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Analyzing Traces with the Bidirectional Analysis Application (Optional)
246 FTB-700 Series
Setting Pass/Fail Thresholds
The following table provides the default, minimum and maximum
thresholds.
Once the thresholds are set, the application will be able to perform
Pass/Fail to determine the status of the various events (pass or fail).
Values that are greater than the predefined fail thresholds are displayed in
white on a red background in the events table.
The Pass/Fail threshold LED, located on the front of the unit, will also
indicate the status (green for pass, red for fail).
Test Default Minimum Maximum
Splice loss (dB) 1.000 0.015 5.000
Connector loss (dB) 1.000 0.015 5.000
Reflectance (dB) –40.00 –80.0 0.0
Fiber section attenuation (dB/km) 0.400 0.000 5.000
Span loss (dB) 45.000 0.000 45.000
Span length (km) 0.0000 0.0000 300.0000
Span ORL (dB) 15.00 15.00 40.00
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