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Cypress Semiconductor - Physical layer port protection switch for video
Published Sep 9 2005 

Introduced as the industry´s first broadcast video link protection switch that provides cost-effective redundancy throughout an entire video network, Cypress Semiconductor has announced availability of the YLink port protection switch.

The YLink port protection switch offers users an easy-to-implement, economical way to ´guarantee´ signal integrity and uninterrupted service for live broadcast video systems, instantaneously switching a video signal to an alternate link when a preset error condition exists. Before the introduction of the YLink solution, the only way to provide redundancy was to implement multiple line cards or complete systems, each of which can cost thousands of dollars while leading to long switch-over times causing visible disruption of video, says the company.

The YLink SMPTE (Society of Motion Picture and Television Engineers) Digital Video Protection Switch is designed for use with Cypress´s HOTLink-On-Demand family of video SERDES to offer dual link protection for point-to-point SMPTE SDI communication links (both HD-SDI and SD-SDI).

The YLink switch solution automatically detects the system data rate and identifies protocols, including SD-SDI, HD-SDI and, in the future, DVB-ASI. It takes advantage of the HOTLink II SERDES technology and uses the company´s patent-pending link protection technology to offer an easy-to-implement physical layer level solution for link protection. The YLink port protection switch error protection features are user-programmable and can be bypassed, allowing for custom end-user configuration.

"Our YLink solution provides a unique solution for video equipment makers to reduce costs substantially on current redundant systems or add redundancy inexpensively to new systems and at the same time provides extremely fast switch over times," said Erin Kettwig, product manager for Cypress physical layer devices. "The YLink devices allow our customers to provide a high-value added and very flexible feature for their end customers in a simple design at lower cost."

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