In an AS-Interface network, data is transferred and power is supplied along the same cable. The power supply is a 30 V direct current. An alternating current is modulated onto this direct current as a data carrier. A special power supply with decoupling network is required to supply power to each AS-Interface network. Pepperl+Fuchs offers a comprehensive range of power supplies for a wide variety of applications.
All power supplies manufactured by Pepperl+Fuchs meet PELV requirements. A conductor for the AS-Interface circuit is not required. An additional ground fault monitoring function is integrated in some power supplies to improve system safety.