Exfo FastReporter 2 Instrukcja Użytkownika Pobierz pdf (Strona 128)

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Working with OTDR Files

118 FastReporter 2

Changing OTDR Settings

Setting Macrobend Tolerances

FastReporter 2 can locate macrobends by comparing the loss of events

occurring at a certain wavelength (for example, 1310 nm) with the loss of

the corresponding events at a greater wavelength (for example, 1550 nm).

FastReporter 2 will identify a macrobend when comparing two events if:

 Of the two events, the greater loss occurred at the greater wavelength.

AND

 The difference between the loss of two events exceed the defined

delta loss value. The default delta loss value is 0.5 dB (which is suitable

for most fibers), but you can modify it.

Changes made to event matching tolerances will affect macrobends.

To set macrobend tolerances:

1. On the Settings menu, select OTDR.

2. Click the Tolerances tab.

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