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The Laser Precision FF-1200 single mode Feature Finder is portable and easy
to use. The Feature Finder operates similar to an OTDR. By injecting pulses of
light into a fiber and measuring the returned light, it is able to characterize
the loss and features of a fiber optic cable. A feature, also called an event,
occurs anywhere there is an abrupt change in the normal backscatter of light in
an optical fiber. It may be caused by a fusion or mechanical splice, a
macrobend, of the end of the fiber.
Three modes of operation are provided.
Fault Locate Mode: Locates reflective features plus reflective and
non-reflective ends of fiber. Operates faster than Maintenance Mode. Often used
to locate a break ot the end of a fiber. It is possible to display a traceof the
fiber for further verifivation of results.
Maintenance Mode: Locates all
features that are within the measurement conditions established durring SETUP.
It is possible to display a trace of the fiber for further verification results.
Trace Mode: Displays a trace profile of the fiber under test.
The feature
Finder performs an AyutoMode function to determine the best combination of
range, resolution, and pulse width to use for testing the fiber that is
connected to it. This is an automatic function unless parameters are set
otherwise.
The feature Finder is normally powered from the internal batteries. When
fully charged, eight hours of normal battery powered operation are provided. The
AC Charger/Adapter can also supply power and at the same time recharge the
batteries. Nothe that, with the charger connected, the batteries will be
recharged even with the power switch in the OFF position. Switching from
internal batteries to the AC Charger/Adapter will not interfere with the system
operation.
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