A switchboard is a place in a large office or business where all the telephone calls are connected. He asked to be connected to the central switchboard at London University. a system used to connect telephone calls in an office building, hotel etc, or the people who operate the system
French: standard Equipment used to manually interconnect lines and trunks A manually-operated switching position which is part of a Private Branch Exchange (PBX) service furnished to a customer and is used to control the interconnection of lines and trunks (See Private Branch Exchange )
A large single panel, frame, or assembly of panels having switches, overcurrent, and other protective devices, buses, and usually instruments mounted on the face or back or both Switchboards are generally accessible from the rear and from the front and are not intended to be installed in cabinets
A single large panel or an assembly of panels on which are mounted switches, circuit breakers, meters, fuses and terminals essential to the operation of electrical equipment