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This newly updated edition reflects recent changes in fiber optic technology, marketing, and applications, including wider usage of Fiber To The Home (FTTH) applications and Local Area Networks (LANs). A practical guide for designers, installers, and troubleshooters of fiber optic cable plants and networks, this book provides a comprehensive overview of all aspects of fiber optics as used in communications systems, including telephone, CATV, and computers. Beginning with a brief history of the development of fiber optics, the fourth edition progresses from the basics of the technology and its components, to installation and testing. Professional and apprentice electricians, telecom professionals, the Fiber Optics Association, electrical bookstores, and those interested in a preparation manual for the Certified Fiber Optic Technician certification exam are target audience segments for this book.