NCN5130 is a receiver−transmitter IC suitable for use in KNXtwisted pair networks (KNX TP1−256). NCN5130 embeds both PHY and MAC layers and handles the transmission and reception of data on the bus. It generates from the unregulated bus voltage stabilized voltages for its own power needs as well as to power external devices. NCN5130 assures safe coupling to and decoupling from the bus. Various monitors (bus voltage, current, temperature...) are made available through an analog pin.