Crossover switch
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.
Formula
Typical crossover matrices follow the formula: an N×N Banyan switch uses (N/2) log N elements. Other formulas are used for differing number of cross-over layers, and scaling is possible, but becomes very large and complex with large N×N arrays. CAD and AI can be used to take the drudgery out of these designs.
Measurement
The switches are measured by how many stages, and how many up/down sorters and crosspoints. Switches often have buffers built in to speed up switching speeds. A typical[clarification needed] switch may have a 2×2 and 4×4 down sorter, followed by an 8×8 up sorter, followed by a 2×2 crosspoint banyan switch network, resulting in a 3-level sorting for a 3-stage banyan network switch.[citation needed] The future is moving to larger arrays of inputs and outputs needed in a very small space.
See also
- Clos switch
- Crossbar switch
References
- ^ Picton, P. D. (1994-09-01). "Modified Fredkin gates in logic design". Microelectronics Journal. 25 (6): 437–441. doi:10.1016/0026-2692(94)90068-X. ISSN 0026-2692.
External links
- Membrane Switch
- Transformer Switchgear
- v
- t
- e
- Analogue switch
- Banyan switch
- Battery isolator
- Cam switch
- Centrifugal switch
- Company switch
- Contact protection
- Crossbar switch
- Crossover switch
- Cryotron
- DIP switch
- Dry contact
- Electric switchboard
- Float switch
- Half-moon switch
- Humidistat
- Infinite switch
- Inertial switch
- Kill switch
- Key switch
- Knife switch
- Limit switch
- Latching switch
- Light switch
- Lightning switch
- Magnetic proximity fuze
- Magnetic starter
- Magnetic switch
- Mercury switch
- Miniature snap-action switch
- Motion-triggered contact insufficiency
- Nintendo Switch
- Optical switch
- Photoswitch
- Piezo switch
- Placebo button
- Pull switch
- Push switch
- Push-button
- Railroad switch
- Reed switch
- Rotary switch
- Sail switch
- Sea switch
- Sense switch
- Silicone rubber keypad
- Softswitch
- Spark gap
- Staircase timer
- Stepping switch
- Strowger switch
- Thermostat
- Time switch
- Touch switch
- Transfer switch
- Vacuum switch
- Vandal-resistant switch
- Wireless light switch
- Zero speed switch
This electronics-related article is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e