Crossover switch

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In electronics, a crossover switch or matrix switch is a switch connecting multiple inputs to multiple outputs using complex array matrices designed to switch any one input path to any one (or more) output path(s). There are blocking and non-blocking types of cross-over switches.

These switches can be microelectromechanical systems, electrical, or nonlinear optical systems, and are used in electronics and fiber optic circuits, as well as some optical computers.^[1] A banyan switch is one type of cross-over switch. Their complexity depends on the topology of the individual switches in a switch matrix (how wide it is by how many 'plies' or layers of switches it takes), to implement the desired crossover logic.