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Chapter 27:
Video Transmission
Cable television networks have long used fiber optics to distribute signals partway to homes, reaching neighborhood nodes that distribute signals through coaxial cables to individual homes. As you learned in Chapter 25, cable systems are converging with local phone systems, with both expanding to offer voice, video, and data services. Cable networks also are shifting to digital television. This chapter explains the basics of video systems and transmission, covering both today’s analog video technology and the new digital television standard. It explains how cable systems operate, how they use fiber technology, and how they are adapting the new digital technology. A final section describes other video applications of fiber.
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