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The telephonic switch with sensor, according to the invention, is an electronic device that performs the switching of two or more shared line telephone stations with the switchboard, replacing the well-known mechanic switches. The telephonic switch with sensor contains a power supply/rectifier stage, an electronic sensor stage, a signalising stage and a telephone station switch stage. The supply of the telephonic switch sensor can be made either from the power supply network or from a 12V storage battery, the voltage being used at the visual and acoustic signalising of the called telephone station. In the signalising stage there is a lamp inserted that indicates the position of the idle relays, and also confirms line connection after it has been made. The line switching from one telephone set to the other is performed by finger-touching the two sensors.
RO132165A1988-02-121988-02-12Telephonic switch with sensor
RO100424A2
(en)