The present invention provides a network device interface and method for digitally connecting a plurality of data channels, such as sensors, actuators, and subsystems, to a controller using a network bus. The network device interface interprets commands and data received from the controller and polls...http://www.google.de/patents/US7277970?utm_source=gb-gplus-sharePatent US7277970 - Network device interface for digitally interfacing data channels to a controller via a network
