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Crossbar Switch |
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crossbar switch An earlier telephone switch. First used in the late 1930s, it was a mechanical device that used magnets and metal bars (crossbars) to close connections. Crossbar switches have been replaced with electronic switches (large-scale, specialized computer systems). See ESS and DMS. See also crosspoint switch.crossbar switch [′krȯs‚bär ‚swich] (electricity) A switch having a three-dimensional arrangement of contacts and a magnet system that selects individual contacts according to their coordinates in the matrix. Crossbar Switch a relay-type switching device, used primarily in urban, rural, and long-distance automatic crossbar exchanges and automatic telegraph offices. This switch can make up to 20 connections simultaneously; the location of each connection is determined by the crosspoints of movable vertical and horizontal bars. REFERENCESKarmazov, M. G., and G. B. Metel’skii. Avtomaticheskaia telefoniia. Moscow, 1963.Avtomaticheskaia kommutatsiia i telefoniia, part 2. Edited by G. B. Metel’skii. Moscow, 1969. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | The first, the TagmaStore Network Storage Controller model NSC55, delivers all of the revolutionary functionality of the TagmaStore Universal Storage Platform--including its massively parallel crossbar switch architecture for high availability and performance; large-scale controller-based virtualization layer for ease-of-management; logical partitioning for application quality-of-service; storage-agnostic universal replication for business continuance; and a rich set of software tools. The two-chip set consists of a queue manager that supports either two OC-192 ports or eight OC-48 ports and a crossbar switch whose 256 Gbps of data throughput enables the industry's fastest switching performance. The XP--1000 for both Unix and Windows NT features the new Alpha 21264 microprocessor supported by a system architecture built around the Tsunami crossbar switch. |
Crossbar Switch |
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