The invention relates to an engine assembly for an aircraft comprising a turbojet, a engine mount pylon, and a plurality of engine mounts inserted between the engine mount pylon and the turbojet. In particular, a relay node may receive a first transmission message from a first source node in a first time slot. The conductive and dielectric layers of the ATF stack are patterned into wire networks and bond pads. Sheet leading edge sensors including a light projecting element and a light receiving element are positioned downstream from the reference position exactly a distance L0. The computer uses information received during the communication to identify and authenticate the client making the communication and the location of the client at the time of the communication.