renewal of DAI cameras and transition from analogue to digital network

the consultation concerns:- the realization of a video coverage study- the replacement of all the DAI cameras of the tunnels of Bois de Peu and Fontain including the implementation of the recipe book and the realization of all the tests- the installation of ethernet cable for power of the cameras- the change and configuration of existing switches and the supply and installation of additional switches- the update of the existing "DAI" system in the CISGT- training of CISGT teams