MODULATION-DEMODULATION DEVICE INTENDED FOR SENDING AND RECEIVING DATA ON A HIGH-VOLTAGE LINE

摘要

The invention relates to a modulation-demodulation device intended for sending and receiving data Iem, Ire on a transmission channel (1), the device being connected to the transmission channel (1) by an additional line (2), the device comprising a signal processing unit (6) linked to at least one power supply unit (5) and to means of coupling (3, 16, 18) between the signal processing unit (6) and the transmission channel (1). According to the invention, the coupling means (3, 16, 18) comprise an input stage (16, 18) of the power supply unit (5).