EXFO FTB-7000 OTDR for FTB-200 v2 User Manual
Page 229
Analyzing Traces with the Bidirectional Analysis Application
OTDR
215
Reanalyzing Traces and Regenerating the Bidirectional Measurement
Reanalyzing Traces and Regenerating the
Bidirectional Measurement
You can analyze the A->B and B->A traces and regenerate the
bidirectional measurement at any time. Reanalyzing a trace will:
³
re-create the events table if it was modified.
³
reset the span start to zero and the span end to end-of-fiber, unless you
have saved them (see Saving the Span-Start and Span-End Information
on page 246).
The table below shows what happens when you start the analysis,
depending on the direction that is currently selected.
Note: In the case of multiwavelength files, the analysis is performed for the
selected wavelength only.
If you prefer to focus your analysis on a specific fiber span, see Modifying
the Alignment of Unidirectional Traces on page 217.
Current direction
Bidirectional
measurement
A
->
B trace
B
->
A trace
Bidirectional
Regenerated
Reanalyzed
Reanalyzed
A->B
Regenerated
Reanalyzed
Not modified
B->A
Regenerated
Not modified
Reanalyzed