crossbar system

crossbar system

[′krȯs‚bär ‚sis·təm]
(communications)
Automatic telephone switching system which is generally characterized by the following features: selecting mechanisms are crossbar switches, common circuits select and test the switching paths and control the operation of the selecting mechanisms, and method of operations is one in which the switching information is received and stored by controlling mechanisms that determine the operations necessary in establishing a telephone connection.
References in periodicals archive ?
Bell's Number Four ESS, developed in 1972, was designed primarily as a successor to electro-mechanical 4A crossbar systems.