plugboard

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plugboard

(ˈplʌɡˌbɔːd)
n
(Electronics) another name for patchboard
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Noun1.plugboard - telephone central where circuits are completed with patchcordsplugboard - telephone central where circuits are completed with patchcords
central, telephone exchange, exchange - a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication
phone system, telephone system - a communication system that transmits sound between distant points