Communication channel mean the connecting medias that link various workstations. Following are three basic types of communication channels available:
(a) Twisted-Pair Cables: This cable consists of two insulated copper wires twisted around each other. These are also used for short and medium range telephone communication.
(b) Coaxial Cables: A coaxial cable consists of one or more small cables in protective covering. These are more expensive than twisted pair cables but perform better.
(c) Fiber-optic Cables: These cables are made of plastic or glass and are about as thin as human hair. These cables are highly durable and offer excellent performance but are expensive.
