Twisted-Pair Ethernet: Copper Cabling for High Performance Networking

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Copper Cabling for High Performance Networking
pper Cabling for High Performance Networking
Products. Technology. Delivered Globally..yllabolG derevileD .secivreS .ygolonhceT Contents .stcud no Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .03rP nTwisted-pair Ethernet: Copper Cabling for High Performance Networking . . . .03nThe Need for Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .03nCabling Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .04nInstallation Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .04nEnvironmental Issues Affecting Today's Cabling Standards for UTP Cabling . . .05nTwisted-Pair Ethernet and Data Transmission Basics . . . . . . . . . . . . . . . . . . .05nMHz vs. Mbps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .06nSignal to Noise (SNR) and Line Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .06SNR for 10GBase-T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .07nReal-Time Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .07nConclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .07
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Introduction over different twisted performance levels of twisted-pair copper cabling. End-users should carefully consider the available cabling technology options toThe escalating Internet data traffic has stimulated an unprecedented ensure that the selected cabling system will meet both their current and futuretransformation in the telecommunication infrastructure. As a result, network application requirements.designers are struggling with critical path design choices to address afundamental reengineering of the telecommunication infrastructure. With The Need for Speed gnmultiple media and technologies to choose from, the network upgrade paths for ithe managers of enterprise networks and data centers are many and varied. In today's modern enterprise, organizations have shifted away from the krEthernet over twisted-pair copper continues as the preferred protocol and media centralized mainframe computing environments of the early 1990s to more owfor in-building horizontal network cabling applications operating at distances less distributed client-server architectures. Servers, now clustered in data centers, teNthan 100 meters (328 ft.). It provides the advantages of plug-and-play simplicity require both resilient and high-speed network connectivity. Vertical markets, and cost-performance benefits over alternative networks and media types. especially the financial industry, have seen tremendous growth in network ectraffic over the last decade. As an example, the New York Stock Exchange naThere are strong reasons for the broad acceptance and rapid growth of processes roughly $5 trillion in transactions per day. This is more than the mrunshielded twisted pair (UTP) as the horizontal media of choice: low initial cost, entire annua... [download for more]