Abstract: An aircraft avionics system comprising rack mounted line replaceable units that exchange messages between them via a bus. The avionics system comprises a monitoring device arranged in the rack comprising a connector electrically linked to the bus and into which a rack mounted line replaceable unit is plugged, to be electrically linked to the bus. The monitoring device also monitors the messages exchanged, via the bus, between the line replaceable unit plugged into its connector and other units of the avionics system. The monitoring device comprises an acquisition unit to acquire signals transmitted or received by the line replaceable unit plugged into the connector during the exchange of messages with at least one other unit of the avionics system, for converting the signals into storable digital data and for assigning clock data to the data, and a storage unit for storing the storable digital data and the clock data.

Abstract: An aircraft avionics system comprising rack mounted line replaceable units that exchange messages between them via a bus. The avionics system comprises a monitoring device arranged in the rack comprising a connector electrically linked to the bus and into which a rack mounted line replaceable unit is plugged, to be electrically linked to the bus. The monitoring device also monitors the messages exchanged, via the bus, between the line replaceable unit plugged into its connector and other units of the avionics system. The monitoring device comprises an acquisition unit to acquire signals transmitted or received by the line replaceable unit plugged into the connector during the exchange of messages with at least one other unit of the avionics system, for converting the signals into storable digital data and for assigning clock data to the data, and a storage unit for storing the storable digital data and the clock data.

Abstract: A method for communicating data in an aircraft between at least a first data processing system and a second data processing system locally networked, each processing system being capable of executing at least one application, wherein the data to be exchanged are organized in messages, the aforementioned messages as well as the processing systems and the applications being defined in files stored in a backup unit connected to the network and accessible by the data processing systems.

Abstract: A method for communicating data in an aircraft between at least a first data processing system and a second data processing system locally networked, each processing system being capable of executing at least one application, wherein the data to be exchanged are organized in messages, the aforementioned messages as well as the processing systems and the applications being defined in files stored in a backup unit connected to the network and accessible by the data processing systems.