Safety instructions before fiber optic testing

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Hello
everyone, today we will discuss with you the safety instructions before fiber
optic testing. Some people may not understand why the safety instructions of
the optical fiber should be emphasized. This is because once the operation is
improper, it will not only cause irreversible damage to the naked eye, but also
affect the service life of the optical fiber
inspection equipment, or even directly damage the equipment.

 

01.How
to avoid damage to the eyes

 

• Under no
circumstances should you look directly at the optical fiber.

• The
wavelength used is invisible to the naked eye (the light that actually
transmits data is invisible to the naked eye).

• If the power
of the energized optical fiber is large enough, the light emitted by it will
cause permanent damage to eyesight.

• If the
equipment currently in use is occasionally exposed to its radiation, it will
not cause damage to eyesight.

• If you are told
that the optical fiber is not energized, please treat it as if it is energized.

• Never stand
in front of an optical fiber patch panel unless all optical fiber connectors
are equipped with protective caps.

• Comply with
the safety requirements set by your organization.

 

02.

 

On
the device level of fiber inspection

 

• The
equipment test recommendations are all passive tests, that is, there should be
no light in the optical fiber.

 

• Light on the
optical fiber will cause inaccurate testing.

 

• If there is
too much light, it will damage the optical power interface of the test
instrument.

 

03.

 

Choose
the most suitable test instrument

 

Why
is it strictly forbidden for us to directly observe whether the light source
has output during the test? Because the wavelengths used in optical
communications are all invisible wavelengths, the wavelengths of multimode
fiber transmission are 850nm and 1300nm, and the wavelengths of single-mode
fiber transmission data are 1310nm and 1550nm, so even if we observe with the naked
eye, there is no light output. , But in fact, this kind of light may cause
permanent damage to human eyes, so be careful.

 

Of
course, as long as we pay attention to the above two safety issues, it is still
very safe to use the fiber tester itself. Of course, in the process of use,
even if there is a strong light device at the opposite end, the power meter of
Fluke Networks still has a large range. It will be easily damaged. At the same
time, the OTDR type instrument will automatically give an alarm, prompting that
the opposite end is detected and the test cannot be performed, which has a good
protective effect, so there is no need to worry about the instrument being
damaged.