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  2. Multiway switching - Wikipedia

    en.wikipedia.org/wiki/Multiway_switching

    Toggling the switch disconnects one "traveler" terminal and connects the other. Electrically, a typical "3-way" switch is a single pole, double throw (SPDT) switch. By correctly connecting two of these switches together, toggling either switch changes the state of the load from off to on, or vice versa.

  3. Light switch - Wikipedia

    en.wikipedia.org/wiki/Light_switch

    3 Australian light switches and a "neon" indicator—in a 4-gang wall-plate. The lower switch is in the "on" or "down" position. Two Australian rocker switches (disassembled), together with a cutaway view, and a view of the switch connections An Australian architrave-mounted 2-gang switch plate and switches.

  4. Three-prong adaptor - Wikipedia

    en.wikipedia.org/wiki/Three-prong_adaptor

    Three-prong plugs do not fit into the older, two-prong receptacles. [7] When used as intended, the ground pin of the 3-wire receptacle is to be connected to a grounded cover screw, or to an external ground. In 1969, Underwriters Laboratories mandated three-prong plugs on major appliances for safety. [7]

  5. DIN connector - Wikipedia

    en.wikipedia.org/wiki/DIN_connector

    Holes on female connectors are also numbered 1-4-2-5-3, but from left to right (facing the holes). The three pins that make contact with a 3 pin DIN connector will have the same pin numbering both in the three-pin and the five-pin connector. A four-conductor cord wired in this way is sometimes called a DIN cord, a DIN lead or a DIN cable.

  6. DIP switch - Wikipedia

    en.wikipedia.org/wiki/DIP_switch

    Eight switches offer 256 (2 8) combinations, which is equivalent to one byte. A tri-state type DIP switch can be in one of three positions (+, 0, −) which allows more codes than a binary DIP switch. For example, 8 pole tri-state DIP switches offer 6,561 (3 8) combinations/codes compared to 8 pole binary switches' 256 (2 8) combinations/codes ...

  7. Screw terminal - Wikipedia

    en.wikipedia.org/wiki/Screw_terminal

    Two paired screw terminals, typically used for connecting ceiling-mounted light fixtures. Screw terminals are used extensively in building wiring for the distribution of electricity - connecting electrical outlets, luminaires and switches to the mains, and for directly connecting major appliances such as clothes dryers and ovens drawing in excess of 15 amperes.

  8. Electrical connector - Wikipedia

    en.wikipedia.org/wiki/Electrical_connector

    The connection may be removable (as for portable equipment), require a tool for assembly and removal, or serve as a permanent electrical joint between two points. [2] An adapter can be used to join dissimilar connectors. Most electrical connectors have a gender – i.e. the male component, called a plug, connects to the female component, or socket.

  9. Lead (electronics) - Wikipedia

    en.wikipedia.org/wiki/Lead_(electronics)

    The lead wire is a coated copper wire, a tinned copper wire or another electrically conductive wire used to connect two locations electrically. In electronics, a lead (/ ˈ l iː d /) or pin is an electrical connector consisting of a length of wire or a metal pad (surface-mount technology) that is designed to connect two locations electrically.

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