| abstract |
The invention relates to a communication unit (S1, S2) for industrial automation for use in a communication system (10) comprising series-connected communication units (M, S1, S2), comprising a first input (E1) and a first output (A1), wherein the communication unit (S1, S2) is configured to receive a serial input data stream with user data via the input (E1) and to output a serial output data stream (ADS) with user data via the output (A1). The communication unit (S1, S2) is designed to determine clock information (TI) on the basis of an internal reference clock signal of the communication unit (S1, S2) and an input symbol clock of the input data stream and the output using the clock information (TI) -Data stream (ADS) to provide an output symbol clock, the clock rate of which is equal to the clock rate of the input symbol clock. |