In electronics and telecommunications, a crossbar switch (cross-point switch, matrix switch) is a collection of switches arranged in a matrix configuration. A crossbar switch has multiple input and output lines that form a crossed pattern of interconnecting lines between which a connection may be established by closing a switch located at each intersection, the elements of the matrix. Originally, a crossbar switch consisted literally of crossing metal bars that provided the input and output paths. Later implementations achieved the same switching topology in solid-state electronics. The crossbar switch is one of the principal telephone exchange architectures, together with a rotary switch, memory switch, and a crossover switch.
In electronics and telecommunications a crossbar switch (cross-point switch matrix switch) is a collection of switches arranged in a matrix configuration A crossbar switch has multiple input and output lines that form a crossed pattern of interconnecting lines between which a connection may be established by closing a switch located at each intersection the elements of the matrix Originally a crossbar switch consisted literally of crossing metal bars that provided the input and output paths Later implementations achieved the same switching topology in solid-state electronics The crossbar switch is one of the principal telephone exchange architectures together with a rotary switch memory switch and a crossover switch