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7. Fiber Inspection and Ferrule Endface Geometry
7.1 Fiber Inspection
Danger: Optical fibers may emit radiation if the far end is connected with a working laser or
light-emitting diode (LED). Never view the fiber end of a cable or plug with the naked
eye or any optical instrument until absolute verification is established that the fiber is
disconnected from any laser or LED source.
Note: The fiber endface should be clean and contaminant free.
1. Dampen a wipe with isopropyl alcohol (>91% 2-pr water).
2. Clean the end of the ferrule with the dampened wipe, followed by a dry wipe.
3. Blow the ferrule dry with canned air.
4. Locate
the
LC microscope supplied in the D-182905 or D-182959 Upgrade Kit.
5. Insert the ferrule end of the connector into the microscope adapter (center hole).
Danger: A high-intensity light may be used at distant end of fiber to illuminate fiber core.
6. Open the microscope barrels to illuminate the connector tip and use the side wheel to focus.
Acceptable
Unacceptable
Crack or
chip in fiber
Deep chips
in cladding
Singlemode Fiber
Multimode Fiber
Core
Cladding
Cladding
Core
