Yes tkbyd is right 
Sorry if that wasn't clear, the square-round things are standard wall-sockets (of France)...the one at the top is the one in the wall, the 2 other on the right are to connect devices that will be controlled by the relays
Yes tkbyd is right
Sorry if that wasn't clear, the square-round things are standard wall-sockets (of France)...the one at the top is the one in the wall, the 2 other on the right are to connect devices that will be controlled by the relays