A bus system having at least two control devices, each of which has a bus driver. The bus drivers are connected together via at least two bus lines, each of which is equipped with at least one coupling capacitor. A terminal network is connected to the bus lines and consists of at least two resistors and a capacitor; each of the two resistors is connected to one of the bus lines and the resistors are connected together at a central tap. The capacitor of the terminal network lies between the central tap and a ground connection, and the bus system has a reference voltage source. The reference voltage source is connected to the central tap via an element. The voltage of the reference voltage source has a value between an operating voltage of the bus system and ground.