Abstract: The invention relates to an optical alignment system including an optical board connector with a ferrule assembly terminating a plurality of optical fibres and a circuit board comprising a cavity for at least one embedded device, said circuit board comprising first positioning elements. The circuit board includes a plate exposing said cavity and having an accurate position with respect to said cavity and said ferrule assembly includes second positioning elements adapted to cooperate with said first positioning elements made available by said plate to align said terminated optical fibres and said embedded device.