AFL FlexTester 3 Kurzreferenz-Handbuch - Seite 10

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OTDR Mode: Event Table Page Features

Event Table is automatically generated when the [Events] are set to [Auto] in the OTDR Event settings display.

Trace Graph.

Event Table displays:

[Number] of each event, event [Location] in

user selected units, event [Type], [Reflectance]

and [Loss] in (dB) and loss/distance (dB/km).

For multiple-wavelength tests, press to toggle

the wavelength and display event table for

that wavelength.

Event Types

ICON

EVENT TYPE DESCRIPTION

Start

End

Non-

reflective

Loss Event

Non-

reflective

Gainer Event

Reflective

Event

The start of the fiber under test.

The end of the fiber under test.

An event with measurable loss but very small or unmeasurable reflectance, typically

caused by a fusion splice, fiber break, or macrobend (with macrobend detection

disabled).

An event with 'negative loss,' which can occur in OTDR traces where two fibers with

very different backscatter coefficients are spliced or connected. A gainer will be seen

as a normal (positive loss) event when tested from the other end of the fiber. The true

loss of the event is approximately equal to the average of its loss measured from each

end of the fiber under test.

An event with measurable loss and reflectance, typically caused by a connection or

mechanical splice.