A light fixture includes a housing defining a peripheral wall around a reference axis and being provided with a base defining a light emission window. The light fixture further includes a photoreceiver mounted on the base and configured to receive a light beam from the remote terminal carrying a data signal, called the uplink signal, a lighting module arranged in the housing and configured to emit a light beam carrying a data signal, called the downlink signal, through the window and a module for processing data signals according to at least one communication protocol of the network. The light fixture includes a printed circuit board, called the processing board, extending transversely inside the housing and remote from the base, on which the processing module is mounted.