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  2. Wireless light switch - Wikipedia

    en.wikipedia.org/wiki/Wireless_light_switch

    Dimmer light switch with RF-based remote control [1] A wireless light switch is a light switch that commands a light or home appliance to turn itself off or on, instead of interrupting the power line going to the light fixture. There are different ways to communicate between the switch and the fixture: [2]

  3. RF switch - Wikipedia

    en.wikipedia.org/wiki/RF_switch

    An RF switch or microwave switch is a device to route high frequency signals through transmission paths. RF (radio frequency) and microwave switches are used extensively in microwave test systems for signal routing between instruments and devices under test (DUT). Incorporating a switch into a switch matrix system enables you to route signals ...

  4. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.

  5. Light switch - Wikipedia

    en.wikipedia.org/wiki/Light_switch

    The toggle light switch was invented in 1916 by William J. Newton. [2] As a component of an electrical wiring or home wiring system, the installation of light switches is regulated by some authority concerned with safety and standards. In different countries the standard dimensions of the wall mounting hardware (boxes, plates, etc.) may differ.

  6. RF switch matrix - Wikipedia

    en.wikipedia.org/wiki/RF_Switch_Matrix

    The Switch Matrix is made up of discrete electronic components including RF switches and signal conditioners that are mounted together in a mechanical infrastructure or housing. Cables interconnect the switches and signal conditioners. The switch matrix employs a driver circuit and power supply to power and drive the switches and signal ...

  7. Black Friday shoppers spent a record $10.8 billion online ...

    www.aol.com/black-friday-online-sales-track...

    People didn't just fill their plates this Thanksgiving weekend -- data shows they also filled their online shopping carts. Black Friday online shopping this year set a new high, reaching $10.8 ...

  8. Elephants Decorate For The Holidays In Milwaukee

    www.aol.com/elephants-decorate-holidays...

    p>At the Milwaukee County Zoo, the holiday spirit is as large as some of the residents. The zoo shared a delightful scene of their elephants — Belle, Ruth and Brittany — engaging in a bit of ...

  9. Multiway switching - Wikipedia

    en.wikipedia.org/wiki/Multiway_switching

    In contrast to a simple light switch, which is a single pole, single throw (SPST) switch, multiway switching uses switches with one or more additional contacts and two or more wires are run between the switches. When the load is controlled from only two points, single pole, double throw (SPDT) switches are used.