Exfo OTDR 2 Manual do Utilizador descarregar pdf (Página 134)

Analyzing Traces and Events

126 OTDR

Modifying Events

3. Position marker A on the event, and submarker a (to the left of

marker A) as far as possible from marker A , without including the

preceding event.

The area between markers A and a must not include any significant

variation. For more information on positioning markers, see Using

Markers on page 83.

4. Position marker B after the end of the event, where the trace returns to

a regular loss inside the fiber, and submarker b (to the right of

marker B), as far as possible from marker B, without including the

following event.

The area between markers B and b must not include any significant

variation. For more information on positioning markers, see Using

Markers on page 83.

Event loss and reflectance are displayed, respectively, in the Loss and

Reflectance boxes.

Marker A

Marker B

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Exfo OTDR 2 Manual do Utilizador Página 134