EXFO iOLM - Manual (Page 77)

Managing Test Configurations
intelligent Optical Link Mapper 71
Modifying a Test Configuration
5. Select the Link P/F Thresholds tab.
6. Under Link P/F Thresholds, modify the following parameters, as
needed.

Link Length: Select the link length threshold type from the
available choices and then modify the link length as required.
Note: The minimum link length cannot be greater than the maximum link length.

Wavelength: Select the wavelength for which the different
Pass/Fail threshold values can be specified. The available choices
of the wavelength depend on the iOLM module.

Link Loss: Select the Link Loss threshold type from the available
choices and then modify the link loss as required.
Note: The minimum link loss cannot be greater than the maximum link loss.

Link ORL: Select the Link ORL (Optical Return Loss) threshold
type from the available choices and then modify the link ORL as
required. The optical return loss (ORL) refers to the total effect of
multiple reflections and scattering events within a fiber-optic
system.