Local Operating Network (LON) is a standardised digital control protocol which controls building systems and is also used in industrial and process automation. Via TCP/IP, LON networks can be combined to form cross-region networks and be remote-controlled. LON is based on intelligent sensors and actuators. The microprocessor of each LON node, called a "neuron", can be programmed and configured. The data transfer for up to 32,000 nodes is over a twisted pair wire, as a separate control line, at a rate of up to 1.25 Mbit/s.