1. Twisted Pair
-it is the ordinary copper wire that connects home and may business computers to the telephone company. To reduce cross-talk or electromagnetic induction between pairs of two wires, two insulated copper wires are twisted around each other.
Two types of Twisted Pair:
A. Shielded Twisted Pair (STP)
-was originally designed by IBM for token ring networks that included two individual wires covered with a foil shielding, which prevents electromagnetic interference, thereby transporting data faster.
B. Unshielded Twisted Pair (UTP)
-one of the least expensive wires and works for basic needs of phone systems, so it is one of the commonly installed in residential industries.
2. Coaxial Cable
-is a type of cable specially built with a metal shield and other components engineered to block signal interference. It is primarily used by cable TV companies to connect their satellite antenna facilities to customer home and businesses.
3. Fiber Optic Cable
-also known as Optical fiber cable, it is an assembly similar to an electrical cables but containing one or more optical fibers that are used to carry light.The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will deployed.
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