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  2. Transfer switch - Wikipedia

    en.wikipedia.org/wiki/Transfer_switch

    A transfer switch is an electrical switch that switches a load between two sources. Some transfer switches are manual, in that an operator effects the transfer by throwing a switch, while others are automatic and trigger when they sense one of the sources has lost or gained power. An Automatic Transfer Switch (ATS) is often installed where a ...

  3. Strowger switch - Wikipedia

    en.wikipedia.org/wiki/Strowger_switch

    The Strowger switch is the first commercially successful electromechanical stepping switch telephone exchange system. It was developed by the Strowger Automatic Telephone Exchange Company founded in 1891 by Almon Brown Strowger. Because of its operational characteristics, it is also known as a step-by-step (SXS) switch.

  4. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the ...

  5. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    EMS-1 (The ITEC Electronic Modular Switch is an electronic direct control switching system. The modules are combined to form a complete switch or any of the modules can be added to your present Step-by-Step Systems.) EMS-2 (The EMS-2 RURAL SWITCH is a stored program control analog switch designed to be cost-effective in small exchanges.

  6. ASCO Power Technologies - Wikipedia

    en.wikipedia.org/wiki/ASCO_Power_Technologies

    With over 1400 employees and 500,000 square feet of manufacturing floor space, it is the world's largest manufacturer of power transfer switches. ASCO Power Technologies was founded in 1888 and developed the first commercially available automatic transfer switch in 1920.

  7. 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.

  8. Automatic transfer switch - Wikipedia

    en.wikipedia.org/?title=Automatic_transfer...

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Automatic_transfer_switch&oldid=182416236"

  9. Automatic switching system - Wikipedia

    en.wikipedia.org/wiki/Automatic_switching_system

    In data communications, an automatic switching system is a switching system in which all the operations required to execute the three phases of Information transfer transactions are automatically executed in response to signals from a user end-instrument.