Hybrid fiber-coax network architecture

Doug Combs

doi:10.1117/12.257314

4 November 1996 Hybrid fiber-coax network architecture

Doug Combs

Proceedings Volume 2917, Broadband Access Systems; (1996) https://doi.org/10.1117/12.257314
Event: Photonics East '96, 1996, Boston, MA, United States

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).

Citation Download Citation

Doug Combs "Hybrid fiber-coax network architecture", Proc. SPIE 2917, Broadband Access Systems, (4 November 1996); https://doi.org/10.1117/12.257314

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