Digital Transmission Fundamentals for Cable Engineers (1992)

By Ed Callahan, ANTEC & Carl McGrath, AT&T Bell Laboratories

This paper will examine various techniques as they apply to digital transmission on CATV systems. A brief review of analog to digital conversion techniques, as well as an overview of digital modulation methods, will be presented. CATV system infrastructure will be examined

both from a current capabilities viewpoint and from a forward looking perspective considering the evolution of delivery and networking techniques with fiber, wireless and star-bus bidirectional topologies.

Because analog signal transmission will exist on CATV networks well into the future, techniques for integrating digital capabilities into a broadband hybrid analog/digital network will also be discussed. The evolution of these networks, and their interactions with existing and evolving TDM telephony networks will also be considered.

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