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CABLE TRANSMISSION MEDIUMS
The transmission medium that still dominates houses and offices is the twisted pair. In the past, local area networks (LAN) were made of coaxial cables, which were also used as a transmission medium for medium- and long-range analog communications. Although, its use in LAN was replaced by the twisted pair, the development of the cable television made the coaxial cable reused. With the improvement of isolators and copper quality and with the development of shielding, the twisted pair became widely used for providing high-speed data communications, in addition to the initial use for analog telephony. Currently, most of the companies use Internet protocol (IP) telephony, which represents a convergence between voice and ...
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