The Actuator/Sensor Interface (AS-Interface) is a replacement for conventional wiring systems, which typically require two wires for power supply and an additional wire for the signal or control line.
In the case of AS-Interface, however, one two-wire flat cable is sufficient for transmitting data and power for all stations (up to 62 per line possible).
AS-Interface ensures reliable data transmission secure from EMC effects. It minimises the time and expense of installation, offers a diagnostic function, detects short circuits and makes retrofitting especially easy anywhere.
Here are some of the advantages AS-Interface offers:
- Free topology (tree, star, line, etc.)
- Open to all fieldbusses

- Easy installation using the insulation penetration technique
- Automatic addressing when replacements are made
Our AS-Interface programme:
- Master and gateways
- Modules for switch cabinet, terminal box or for field use
- Intelligent modules for intelligent solutions
- Sensors with integrated AS-Interface chip
- Modules for the Ex zone
- Power supplies and repeaters
- Accessories