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An electric switchboard is a piece of equipment that distributes electric power from one or more sources of supply to several smaller load circuits. It is an assembly of one or more panels, each of which contains switching devices for the protection and control of circuits fed from the switchboard. Several manufacturers make switchboards used ...
The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard operators who used electrical cords or switches to establish the connections. The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges ...
A telephone switchboard is a device that allows telephone lines to be interconnected, enabling the routing of calls between different phones or phone networks. [17] The switchboard operator was a person who manually connected calls by plugging and unplugging cords on the switchboard.
Switchboard, another term a helpline. Switchboard of Miami, a nonprofit organization offering hotline, informational and referral services in Miami, Florida. Switchboard (UK), formerly known as the London Lesbian and Gay Switchboard, a helpline for the LGBT+ persons in the UK. Category:
A telephone switchboard is a device that allows telephone lines to be interconnected, enabling the routing of calls between different telephones or telephone networks. The switchboard operator was a person who manually connected calls by plugging and unplugging cords on the switchboard.
Telephone exchange. A telephone operator manually connecting calls with cord pairs at a telephone switchboard. A modern central office, equipped with voice communication and broadband data capabilities. A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN ...
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