crossbar switch


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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.

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.

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.
References in periodicals archive ?
OEM pricing in volumes of 1,000 is $599 for the CX27301 Queue Manager and $599 for the CX27302 Crossbar Switch.
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With the newly finessed and refined fourth generation massively parallel crossbar switch architecture as its engine -- the all new mega-scalable Hitachi Universal Star Network[TM] V -- the Universal Storage Platform V delivers 3.
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MX31L processors leverage Freescale's Smart Speed technology architecture, an intelligent integrative approach that uses hardware accelerators to offload the CPU and a crossbar switch to bring parallelism to the system.
Supported by a crossbar switch architecture and 16-channel enhanced direct memory access (eDMA), Freescale's innovative dual-core design makes the MPC5510 family one of the most efficient, low-power 32-bit automotive MCUs in the market.
MX27 multimedia applications processor is architected with Freescale's Smart Speed technology, an intelligent integrative approach that uses hardware accelerators to offload the CPU and a crossbar switch to bring parallelism to the system.
With cached bandwidth being the limiting performance factor in any cache-centric high-end storage system, the massively parallel Hitachi Universal Star Network(TM) crossbar switch architecture shatters through the bottlenecks inherent in existing legacy architectures by offering a massive 68 gigabytes per second of cached bandwidth -- a 325-percent advantage over monolithic competitors, as well as 256 concurrent memory operations, an additional 700-percent advantage.
The processor design maximizes performance and lowers power consumption through an innovative multi-clock architecture in which relatively slow cores share an onboard memory controller and I/O subsystem through a high speed crossbar switch.