AS-Interface bus terminal. Optimize the signal quality by connecting to the bus terminals at the end of the bus cable; Further extend the AS-Interface bus cable up to 200m when the length of the bus cable exceeds 100m; Support AS-Interface Spec. V3.0 and both upward and downward compatible; AS-i voltage range: DC 29.5-31.6V; Current consumption: <10mA; Plug-and-play without settings; Protection grade: IP20; DIN35 standard lead rail mounting.