EXFO FastReporter Data Post-Processing Software - Manual (Page 218)

Description of OTDR Event Types
212 FastReporter
Merged Reflective Event
Merged Reflective Event
This symbol denotes a reflective event combined with one or more other
reflective events. It also indicates the total loss produced by the merged
reflective events following it in the events table.
³
A Merged Reflective Event is composed of reflective events. Only the
Merged Reflective Event is attributed a number in the events table, not
the reflective subevents composing it, if they are displayed.
³
Reflective events may indicate the presence of connectors,
mechanical splices, or poor-quality fusion splices or cracks.
³
A reflectance value is specified for all merged reflective events and
indicates the maximum reflectance for the merged event.
A reflectance value is also displayed for each subevent composing the
Merged Reflective Event.
Reflective events
Point A
Point B
Merged Reflective event position
Total loss (
∆
dB)
Reflected power
(dB)
Distance
(km)