Abstract: The present invention relates to a method for exchanging information frames over a network between circuits having transmission channels of unified addresses and/or reception channels associated with addresses of transmission channels. It includes the steps of periodically transmitting from a master circuit addresses of transmission channels; receiving each address by each circuit and, when the address corresponds to a transmission channel of the circuit, transmitting the information frame contained in the transmission channel after receiving the next address; receiving each information frame by each circuit and, when the address previously received by the circuit is associated with a reception channel of the circuit, providing the received frame to this reception channel after receiving the next address; and retransmitting from each circuit each first address received and each first information frame received.

Abstract: The present invention involves a dart having a dart shaft that can be snap-fit into a corresponding dart barrel. The dart shaft has a cylindrical projection that terminates in a flange having indentations or detents on its peripheral surface. The dart barrel has a recess; flexible elongated arms extending into the recess of the dart barrel, removed from the walls of the dart barrel for clasping the dart shaft. The arms have indents or detents corresponding to the indents or detents of the projection, and the arms flex on and off the cylindrical projection of the dart shaft as the indents and detents are aligned and adjusted. The invention further relates to an adapter that can be used to modify a conventional threaded dart into the snap-fit dart of the present invention.