FIELD: vehicles. SUBSTANCE: multiplex system of automobile electric units has bidirectional tire-connecting blocks set up at the ends of each data transmitting line. Each block has two analogous amplifiers turned on in opposite directions. At least some of tire-connecting blocks and corresponding sections of power supply line are united from the side of sprocket neutral. When one of electric units transmits signals, tire-connecting block of central distributing member corresponding to it acts as receiver. All the other tire-connecting blocks of central member act as transmitters. In this case tire-connecting blocks of the other electric units act as receivers. EFFECT: improved design. 7 cl, 4 dwg
