The Number One Crossbar Switching System (1XB), was the primary technology for urban telephone exchanges served by the Bell System in the mid-20th century...

Later implementations achieved the same switching topology in solid-state electronics. The crossbar switch is one of the principal telephone exchange architectures...

The Number Five Crossbar Switching System (5XB switch) is a telephone switch for telephone exchanges designed by Bell Labs and manufactured by Western...

the Number One Crossbar Switching System, Number Five Crossbar Switching System, 1ESS switch and other switches. In early electromechanical switches, a...

(XBT) variant of the Number One Crossbar Switching System, or 1XB switch. The Number 4 Crossbar ("4XB") tandem switch was used in the North American toll network...

crossbar switch was only making a single connection. The other contacts on the two bars were unused. This seemed to imply that most of the switching fabric...

a class-5 switch. E10S satellite switching unit. E10-MSC mobile switching center for GSM and other protocols. 1000 (MM) E10 - Evolved switch for multimedia...

Centrifugal switch Company switch Crossbar switch Dead man's switch Fireman's switch Hall-effect switch Inertial switch Isolator switch Key switch Kill switch Latching...

a crossbar, each output connects to one input, so that information can flow through every output simultaneously. Crossbars used for packet switching are...

of multistage circuit-switching network which represents a theoretical idealization of practical, multistage switching systems. It was invented by Edson...

electronic switching systems in the 1960s were not entirely digital in nature, but used reed relay-operated metallic paths or crossbar switches operated...

the Bell System and used the panel switch, or later the Number One Crossbar Switching System (1XB), or the Number 5 Crossbar Switching Systems rather than...

System in the United States by the name Common Channel Interoffice Signaling in the 1970s for signaling between No. 4ESS switch and No. 4A crossbar toll...

The 411 number has been in use since at least 1930 in New York City, San Francisco, and other large cities where panel and crossbar switching equipment...

elements (PEs) on one end of the network and memory elements (MEs) on the other end, connected by switching elements (SEs). The switching elements themselves...

automatic number identification had been retrofitted to nearly all step-by-step and crossbar switches in the Bell System. Electronic switching systems gradually...

network switch.[citation needed] The future is moving to larger arrays of inputs and outputs needed in a very small space. Clos switch Crossbar switch Picton...

generation of crossbar switches which were replacing the Step-by-Step switches and Panel switches of the first generation of automatic switching. First employed...

over in complex patterns. Logical banyan switches are used in logic or signal pathways to crossover switching of signals onto new pathways. They can be...

telephone switching systems, where the total number of subscriber lines and multiple central offices throughout the city required complex switching arrangements...

of new crossbar switching systems for toll-dialing in New York and Chicago, which added new technology to the No. 4 Crossbar Switching System, first installed...

300mm wafers. Crossbar implements an Ag filament in amorphous Si along with a threshold switching system to achieve a diode+ReRAM. Their system includes the...

switch in the United States, and the Rotary system outside the US, and by the late 1930s by the crossbar switch, and the electronic switching systems...

returned to using area code 415. The No. 4 Crossbar switching system had been introduced in the early 1940s to switch four-wire circuits and replace the incoming...

protection from these attacks. Traffic switching in the ISCs was then typically handled by crossbar switches or electronically controlled cross-points...

The Panel Machine Switching System is a type of automatic telephone exchange for urban service that was used in the Bell System in the United States for...

was not encrypted. The telephone switches used were initially a 4 wire version of Number Five Crossbar Switching System, replaced in the early 1970s after...

eight Western Electric Crossbar switches, at least one Number 1 and mostly Number 5. There was a Western Electric 4A Crossbar that took up two floors...

cables. The damaged Number One Crossbar Switching System (1XB switch) was cleaned, and a Number One Electronic Switching System (1ESS switch) that had been...

the switch selection did not have to be completed during the pause. These included access lines to the panel switch in the 1920s, crossbar systems, the...