A link apparatus in a node of a mulitinode, collision--resolution, multiplexing communications system connected between a microcontroller (MCU) and a integrated driver and receiver (IDR) of the node for assuming some of the functions of the MCU in delivering and receiving messages to and from a signal-wire...http://www.google.com/patents/US5495469?utm_source=gb-gplus-sharePatent US5495469 - Communications network, state machine therefor
