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Cypress samples channelized GFP SONET/SDH framer

Posted: 07 Mar 2003 ?? ?Print Version ?Bookmark and Share

Keywords:cypress semiconductor? posicg2? sonet framer? sdh framer? cy7c9537?

Cypress Semiconductor Corp. is sampling the POSIC2G framer (part number: CY7C9537), which is touted to be the industry's first 2.5Gbps channelized SONET/SDH framer with generic framing procedure (GFP).

Available in a 504-ball BGA package, the device provides support for both resilient packet ring protocol operation at OC-48/STM-16 rates and for advanced solutions for existing data transport infrastructure.

The company claims that the POSIC2G framer supports efficient RPR mapping with GFP, providing an increase in effective data bandwidth compared with other encapsulating protocols such as HDLC. GFP is a method of encapsulating any protocol for transport over a SONET/SDH network.

When used in GFP mode, RPR packets transparently travel within the SONET/SDH frame over the existing telecommunications infrastructure. Channelization enables service providers to configure a number of individual channels that subdivide the bandwidth of a larger interface (OC-48), providing better QoS.

Resilient packet ring technology is designed for efficient transport of packet data over a ring topology. This technology simultaneously supports traditional carrier-class features such as performance monitoring, resiliency, and data restoration, while offering newer services for packet data and latency sensitive traffic.

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