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VII Fiber-optics
Fiber uses light as
opposed to a digital electrical signal to accomplish transmission.
About the size of a human hair, it is made of either glass or
plastic.
Glass cable has greater
transmission distances, while plastic is less expensive
to purchase. The major advantage of fiber-optics is its immunity
to electromagnetic fields (EMF).
This means running fiber next
to electrical systems is acceptable, unlike copper
based cable. Fiber has the further advantage of being very
difficult to intercept, making it suitable for sensitive
data transmission. Fiber comes in two basic flavors the single
mode (4Km limit) and multi-mode (2Km).
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