Apparatus comprising a system interface

摘要

A system interface (15), in form of a plug or socket, provides different connections for an actuator voltage supply channel (17), a communication channel (18), and a communication voltage supply channel (19). The communication channel and the communication voltage supply channel are connected via communication link (6), which in turn is in contact with the actuator voltage supply channel via actuator voltage supply line (11). The connections for both voltage supply channels are floating.