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Proceedings Paper

Hybrid fiber-coax network architecture
Author(s): Doug Combs
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Paper Abstract

Today's modern cable television network is bi-directional, it is constructed with a mixture of fiber optics and coaxial cables. This architecture is commonly referred to as a hybrid fiber coax (HFC) network. The architecture utilizes fiber optics to transport signals to and from small serving areas commonly referred to as fiber serving areas (FSAs). At points throughout the system the optical signals are transitioned to and from signals in the radio frequency (rf) spectrum of 5 to 750 MHz. The point where the transition takes place is commonly referred to as an optical node. From the optical node the coaxial network is used to transport signals to and from the end users. It is common practice to design the coaxial portion of the network with a downstream frequency bandwidth of 50 to 750 MHz, a return frequency bandwidth of 5 - 42 MHz is utilized to carry the signals from the end users to the headend (HE).

Paper Details

Date Published: 4 November 1996
PDF: 6 pages
Proc. SPIE 2917, Broadband Access Systems, (4 November 1996); doi: 10.1117/12.257314
Show Author Affiliations
Doug Combs, TCI Communications, Inc. (United States)


Published in SPIE Proceedings Vol. 2917:
Broadband Access Systems
Wai Sum Lai; Indra Widjaja; Dennis Karvelas; Sam T. Jewell; Curtis A. Siller Jr.; Indra Widjaja; Dennis Karvelas, Editor(s)

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