Okuma OSP 5000, Электротехническое обслуживание, Учебное пособие

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Okuma America Corporation
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Rev. 8-21-01
The following is information on how to troubleshoot a fiber optic cable.
The first step in checking a fiber optic cable is to do the light check. Simply put a light source
around one end of the fiber optic cable. If a light source is seen at the other end of the cable
the cable is good. There will be some cases where the light source is seen but one of the tips
might be damaged causing an alarm. To check the tip of a fiber optic cable, a low cost slide
microscope can be used. The following are examples of tips that are either good or bad.
PASS
Perfect
T h e o u t s i d e e d g e i s
clean cut and a line that
is less than 2/3 of the
c i r c u m f e r e n c e o f t h e
fiber itself.
A piece of the outside
edge is broken but is
l e s s t h a n 1 / 5 o f t h e
circumference of the
fiber.
FAIL
A piece of the outside
edge is broken whick is
m o r e t h a n 1 / 5 o f t h e
circumference of the
fiber.
T h e o u t s i d e e d g e i s
clean cut but a line that
is more than 2/3 of the
circumference of the
fiber itself.