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    How to building a Fiber Optic CATV/HFC Network

    2013-08-05 23:23 Welcome to GrantWave |

    Fiber Optic CATV/HFC Network Overview

    There are three layers to the traditional hybrid fiber/coax (HFC) CATV distribution system. Super-trunk carry signals over long distances. Distances of 100+ km may be achieved with high signal fidelity, with a single fiber link. Second, feeder links typically span a shorter distance and connect a fiber hub (super-trunk termination) to a fiber node. Nodes are the point in a network at which fiber is converted back to RF – this amplified RF is typically fed over coaxial cable to a number of CATV set top boxes. The feeder link within an HFC system is roughly equivalent to the sort of link that a business or campus would use to extend CATV coverage over a distance that is greater than can be achieved with high fidelity over coaxial cable. Such fiber links can terminate at a fiber receiver capable of driving one or two CATV set top boxes. Such links may also terminate at a fiber node receiver capable of supplying CATV to many locations or set top boxes. Third, a drop is typically a link connecting to a single set top box. If distance is prohibitive of coaxial cable, this link may also be impleme

              

    Within the past ten years, passive optical network (PON) and RF-over-glass (RFoG) architectures have extended fiber penetration all the way to residential and business premises. Optical transmitters have evolved to meet the high launch power, high split ratios, and high stimulated Brillouin scattering (SBS) requirements of FTTx architectures. Likewise optical receivers have evolved to facilitate better noise performance at lower optical received power.

     

    Why GrantWave ?

    GrantWave has specialized for years in developing hybrid-fiber-coax (HFC) networks for the transport of CATV signals. GrantWave’s optical/HFC transport platforms offer a multi-tiered solution for highly reliable CATV transmission.

    Today’s HFC network reduces cost while increasing transmission range and maintaining superior performance. An HFC network typically uses coaxial cable for short runs between peripheral equipment and the transmitter or cable receiver at the user end. At the same time, optical transmission links between headends use singlemode fiber to greatly extend the transmission distance. This combination allows the system designer to maximize cost- effectiveness when selecting the system components.

    GrantWave’s full line of CATV links can be config- ured to meet any network requirement. This includes:

    Medium Size Private Networks

    Large Scale Campus and Municipal Networks

    Short-Haul CATV Transport

    Long-Haul CATV Transport

    Fiber Optic CATV/HFC Network Typical solutions

    Small Private CATV Networks                                              

     

    Small to Medium Size Private Networks

     

    Large Scale Campus andMunicipal Networks

     

    Ethernet over Coax (EoC) Networks

     

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