EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 136)

Customizing the Application
122 OTDR
Defining the Number of Digits Displayed after the Decimal Point
Defining the Number of Digits Displayed after
the Decimal Point
You can set the number of digits that will be displayed after the decimal
point for the following values:
³
Span loss
³
Reflectance
³
Section attenuation
³
Span length
³
Span ORL
This will affect the way values are displayed and, possibly, the status of the
results (pass, warning or fail).
The following table indicates what would happen with a particular fiber
section having an attenuation value of 0.5523.
Note: The displayed values are rounded, not truncated.
Note: This function is available in Advanced mode only.
Value Number of digits Displayed value
Warning
threshold
Result status
0.5523 3 0.552 0.550 Warning
0.5523 2 0.55 0.55 Pass