Abstract: A system for broadcasting an avionics temporal reference over a set of devices (7) of an aircraft, the system includes a master clock (5) configured to broadcast the avionics temporal reference via a wireless communication network (3) according to at least one predetermined frequency belonging to a wireless avionics intra-communication frequency band.

Abstract: A system for broadcasting an avionics temporal reference over a set of devices (7) of an aircraft, the system includes a master clock (5) configured to broadcast the avionics temporal reference via a wireless communication network (3) according to at least one predetermined frequency belonging to a wireless avionics intra-communication frequency band.

Abstract: The communication network includes a set of links each supporting a specified bandwidth, a set of subscribers and at least one communication node comprising a set of communication ports configured for being connected to links of the network. Each of the subscribers is associated with an authorized maximum bandwidth for transmission on the network, the total of authorized maximum bandwidths corresponding to respective subscriber being less than or equal to the authorized maximum bandwidth associated with respective subscriber. The communication node includes a processing unit configured for, when a data frame is received on one of the communication ports: checking if a memory contains an identifier associated with that data frame; and if the memory does not contain the identifier associated with that data frame: sending that data frame to all of the other communication ports of the communication node and storing the identifier associated with the data frame in the memory.