Production of visual codes for pairing electronic equipment

The invention is intended for the technological field of data communication between electronic equipment (1-4) forming part of a system of electronic equipment (10). The invention more specifically relates to a method and a system to facilitate, using an identifier having the form of a visual code, the transmission of command data to one of the electronic equipment items of the system, when the electronic equipment that produces the visual code is activated. The transmission of command data intended for one of the equipment items is performed following the reading and decoding of the visual code, for example with another equipment item of the system.