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The Cisco 5x20S Broadband Processing Engine for the Cisco uBR10012 features dedicated media access control (MAC) layer hardware for maximum performance in large-scale cable deployments. This cable interface features five downstream modulators, five upconverters, and 20 upstream burst receivers on a single line card that embeds the most advanced RF capabilities. The card features a highly integrated and robust RF front-end and the industry's most advanced processing engine for DOCSIS networks supporting 6 MHz NTSC channel operations using STD, HRC, or IRC frequency plans.