... of home and building automation products, which includes dimmer actuator, switch actuator, shutter actuator, power supply, protocol gateway, detector/sensor, user ... , etc. Product Features:Manual operation supported.Scene control / preset via 8 bit/ 1 bit commands.Logic operation of AND, OR, XOR ... the outstanding performance of our K-BUS series products. KNX - Switch Actuator - 4ch/ 8ch/ 12ch