Switchboard
noun, Electricity.
1.
a structural unit on which are mounted switches and instruments necessary to complete telephone circuits manually.
2.
Also called lightboard. a panel of switches, dimmers, etc., for controlling the lighting on a stage or in an auditorium.
noun
1.
an installation in a telephone exchange, office, hotel, etc, at which the interconnection of telephone lines is manually controlled
2.
an assembly of switchgear for the control of power supplies in an installation or building
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