Span start, Span end, Short fibers – EXFO FTB-7000 OTDR for FTB-200 v2 User Manual

Page 312: Span start span end short fibers

Description of Event Types

298

FTB-7000 Series

Span Start

Span Start

The Span Start of a trace is the event that marks the beginning of the fiber
span. By default, the Span Start is placed on the first event of a tested fiber
(typically the first connector of the OTDR itself).

You can make another event the start of the span you want to focus your
analysis on. This will set the beginning of the events table at a specific
event along the trace.

Span End

The Span End of a trace is the event that marks the end of the fiber span. By
default, the Span End is placed on the last event of a tested fiber, and is
called the end-of-fiber event.

You can also make another event the end of the span you want to focus
your analysis on. This will set the end of the events table at a specific event
along the trace.

Short Fibers

You can test short fibers with the application. You can even define a fiber
span for short fibers by placing the span start and the span end on the same
event.