TRANSCEIVER

PURPOSE:To obtain a transceiver used in common and to which the number of receivers and collision detectors is saved by connecting in common each output of N-set of transmitters, the inputs of receivers and collision detectors to a multiple address communication line and using a distribution means to distribute in common the reception and detection signals to N-set of stations. CONSTITUTION:A receiver 23, in receiving a signal on a coaxial cable 30, outputs the corresponding 1st reception signal and the 2nd reception signal generated in secondary windings 1a-1c of a transformer 1 is outputted to a reception signal input terminal of STN 10a-10c. Further, the STNs 10a-10c output the desired 1st transmission signal from a transmission signal output terminal as required and transmitters 22a-22c send a signal to the coaxial able 30. In this case, the collision of the transmission signal takes place on the coaxial cable 30. The 1st coolision detection signal form the collision detector 24 is led to the primary winding of a transformer 3 and the 2nd collision detection signal generated in the secondary windings 3a-3c is outputted to the collision detection signal input terminals of the STN 10a-10c.