Exfo OTDR 2 User Manual download pdf (Page 202)

Description of Event Types

194 OTDR

Merged Event

This symbol denotes an event combined with one or more other events. It

also indicates the total loss produced by the merged events following it in

the events table.

 A Merged Event is composed of subevents. Only the Merged Event is

displayed in the events table, not the subevents composing it.

 Reflective events may indicate the presence of connectors, mechanical

splices, or poor-quality fusion splices or cracks.

 Non-reflective events may indicate the presence of splices, splitters or

bendings.

 A reflectance value is specified for all merged events and indicates the

maximum reflectance for the merged event. A reflectance value is also

displayed for each reflective subevent composing the Merged Event.

Reflective events

Point A

Point B

Merged Reflective event position

Total loss ( dB)

Reflected power

(dB)

Distance

(km)

1 2 ... 197 198 199 200 201 202 203 204 205 206 207 ... 218 219

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Exfo OTDR 2 User Manual Page 202