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  2. Motorola connector - Wikipedia

    en.wikipedia.org/wiki/Motorola_connector

    A Motorola connector (also called a Motorola antenna plug [citation needed] or a male DIN 41585 [1]) is a common coaxial cable RF connector used primarily in the automotive industry for connecting the coaxial feedline from the antenna to the radio receiver. It is also sometimes used for connecting scanner antennas to scanners.

  3. Telephone jack and plug - Wikipedia

    en.wikipedia.org/wiki/Telephone_jack_and_plug

    The 5th plastic pin of the inserted plug disconnects a 1μF capacitor that otherwise closes the circuit of the telephone line when the plug is not inserted. This feature allows testing the line when the phone is not plugged in. [ 7 ] The usage of a capacitor is mostly obsolete and GTN-4 sockets produced later reuse the capacitor compartment for ...

  4. Automobile auxiliary power outlet - Wikipedia

    en.wikipedia.org/wiki/Automobile_auxiliary_power...

    An automobile auxiliary power outlet (also known as car cigarette lighter or auxiliary power outlet [1]) in an automobile was initially designed to power an electrically heated cigarette lighter, [1] but became a de facto standard DC connector to supply electrical power for portable accessories used in or near an automobile directly from the ...

  5. Door phone - Wikipedia

    en.wikipedia.org/wiki/Door_phone

    A door phone or door bell phone is a set of electrical and electronic elements used to handle communication between a resident in a house, apartment or villa and a guest outside. The device can also lock or unlock the door it has been configured to work with. Door phones have been used across a variety of commercial and residential buildings ...

  6. OnStar - Wikipedia

    en.wikipedia.org/wiki/OnStar

    OnStar was formed in 1996 as a collaboration between GM, Electronic Data Systems and Hughes Electronics Corporation.Each of the founding companies brought a specific area of expertise to the enterprise: GM brought vehicle design and integration and a distribution system of millions of vehicles, EDS brought much of the systems development and information management and customer service ...

  7. UHF connector - Wikipedia

    en.wikipedia.org/wiki/UHF_connector

    The connector reliably carries signals at frequencies up to 100 MHz. [1] The coupling shell has a ⁠ 5 / 8 ⁠ inch 24 tpi UNEF standard thread. [4] The most popular cable plug and corresponding chassis-mount socket carry the old Signal Corps labels PL-259 (plug #259) and SO-239 (socket #239). [12]