Abstract: A device bus node associated with an aircraft device has a plurality of communication ports for connecting with a respective bus of an electronic or optoelectronic bus system of a distributed system of an aircraft. The device bus node is configured to receive bus messages from at least one controller bus node of a controller sub-system of the distributed system and perform a self-configuration procedure after that each of its communication ports was connected with a respective different one of the busses of the electronic or optoelectronic bus system, for being fully operational in the distributed system, wherein the self-configuration procedure determines, based on bus messages received at its communication ports, at least part of individual configuration data being associated to the device bus node as part of the distributed system and being needed by the device bus node to enable a processing of a respectively received bus message.