Star coupler for a bus system, bus system with such a star coupler, as well as a method for the exchange of signals in a bus system

摘要

Star coupler (10) for a bus system, with a plurality of terminals (11), to the bus branches (fr1 and fr2, fr3,.., frn) can be connected, wherein the terminals (11) via a respective transmitter - receiver (12) with a digital data processing unit (13) are coupled, wherein the transmitter - receiver (12) via the respective associated connection (11) incoming analog signals in to the data processing unit (13) and converts the digital signals delivered by the data processing unit (13) into digital signals emitted to the respective associated connection (11) converts analog signals delivered, in which the data processing unit (13) comprises a timer (16), so that for each terminal (11) the time in a cyclically repeating sequence of time slots (20, 22, 24, 26, 28) is may be, and wherein the data processing unit (13) is adapted to read a of a connection (11) in a predetermined to the connection (11) defined time slot received signal to at least one according to a predetermined assignment specified further connection (11) in a section through the predetermined assignment fixed to the further connection (11) defined time slot (20, 22, 24, 26, 28), wherein the star coupler is designed for this purpose, in at least one time slot (22, 24, 26) signals via at least two different connections (11) is to be received, and that of a first terminal of incoming signal to at least one first further connection, and to be forwarded from a second connection in the same time slot (22, 24, 26) incoming signal to at least one second further connection to be forwarded to.