System comprising a plurality of slave devices coupled to a bidirectional ring bus and outputting a first and second clock signal from a first and second slave device respectively and selecting either the first or second clock signal at each slave device

摘要

The objective is to reduce the downtime of a printing system in the printing industry. Provision is therefore made to supply the drive regulators (3) of a printing system (1) simultaneously with a plurality of clock signals. Each of the drive regulators (3) independently selects one of the clock signals for synchronization. In the event of failure of a signal source, the printing system is not interrupted but the drive regulators (3) switch automatically to the clock still present.