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H. Schweinzer, S. Saleem Farooq, H. Arthaber:
"Media";
in: "The Industrial Electronics Handbook - Industrial Communications Systems", issued by: Bogdan M. Wilamowski, J. David Irwin; Taylor and Francis/CRC Press, Boca Raton, USA, 2011, ISBN: 978-1-4398-0281-6, 2-1 - 2-17.

This chapter discusses physical mechanisms for transferring digital data. The three dominant media types and their applications are presented: data transmission over cable, over optical links, and over wireless radio frequency (RF) links. Properties of each medium are concisely introduced with respect to physical characteristics, alternatives of realization, topologies, bit coding, and standars. Media for special local data exchange, e.g., infrared transmission, are not contained in this chapter.