The KNX IR Interface is an intelligent transmitter and receiver for infrared (IR) signals. This allows IR signals from various manufacturers to be read, stored and sent. The fields of application are from private residential buildings to Office buildings. The device allows for managing any device that has an IR receiver, from televisions and air conditioners to DVD players and amplifiers, and control over all appliances that use IR communication is possible. Also, the KNX IR Interface allows controlling KNX devices such as lights, blinds and thermostats with remote controls. The device is supplied with power via the KNX bus voltage and no additional power supply is required.