Exfo OTDR 2 User Manual download pdf (Page 36)

Preparing Your OTDR for a Test

28 OTDR

Excluding and Including Span Start and Span End

Excluding and Including Span Start and Span

End

When applicable, the application includes the losses caused by the span

start and span end events to the span loss value. The application also

includes the ORL caused by the span start and span end events to the span

ORL.

When the spans are included, the loss and reflectance values associated

with the events are taken into account to determine the pass/fail

thresholds.

To exclude or include span starts and span ends:

1. From the Main Menu, select the Test Configuration button.

2. Select the Link Definition tab.

3. Under Calculation and Pass/Fail thresholds, select the inclusion of

the span start and span end you want to display in the table.

To exclude the span start and span end, clear the boxes.

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Exfo OTDR 2 User Manual Page 36