Fiber Optic Solutions - ICP DAS USA PDS-220F Series User Manual

Programmable Serial-to-Fiber Device Server

1.2 Fiber Optic Solutions

The fiber-optic communications permits transmission over longer distances than other forms of
communications because of the signals travel along them with less loss and no crosstalk. It has
following important features: Immunity to electromagnetic interference (EMI) — Motors, relays,
welders and other industrial equipment generate a tremendous amount of electrical noise that can
cause major problems with copper cabling.
High electrical resistance, making it safe to use near high-voltage equipment or between
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areas with different earth potentials.
No sparks — important in flammable or explosive gas environments.
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Not electromagnetically radiating, and difficult to tap without disrupting the signal —
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important in high-security environments.
Because of these reasons, optical fibers have largely replaced copper wire communications in core
networks in the developed world.
PDS-220Fx Series User Manual Version 1.3, Oct. 2018 - 8 -