crossbar switch
(redirected from 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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
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.
REFERENCES
Karmazov, 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.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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 physical layer switch.Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.