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Evolving PONs demand FPGA flexibility

Posted: 02 Jun 2008 ?? ?Print Version ?Bookmark and Share

Keywords:PON? FPGA? flexibility design requirements?

FPGA technology, low-cost optics, and a passive architecture have made significant contributions to passive optical networks (PONs) and to the evolution of these networks. System OEMs continue to discover that FPGAs deliver both technical design and economic benefits, especially at the central office infrastructure end of the network side.

Prior to 2002, lower-performance FPGA generations served primarily as prototyping tools. Today's FPGAs are high performance, feature rich, and well suited to meet growing PON design requirements. In addition, FPGAs that offer lower design costs, flexibility, and scalability are the linchpin for turbo-charging the PON market.

A PON is a point-to-multipoint (P2MP) fiber-to-the-premises (FTTP) network topology, which may also be defined as fiber-to-the-curb (FTTC) and fiber-to-the-home (FTTH). Either FTTP or customer premises equipment (CPE ) is used in the PON definition. Unpowered or passive optical splitters are used so that a single optical fiber serves multiple premisesusually 32, but as many as 64. A PON comprises an optical line termination (OLT) at the service provider's central office and a number of optical network terminals (ONTs), also known as optical network units, going to the premises.

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