The present invention relates to a positioning means for a fiber optic connector assembly, a fiber optic connector assembly and a fiber termination unit comprising the positioning means through which manufacturing tolerances can be absorbed to provide an improved optical interconnection with a high signal transmission rate. The positioning means comprises a receiving means for receiving one of a jack assembly or plug assembly and a stationary support supporting said receiving means, wherein the receiving means is displaceable to a certain extent relative to the stationary support at least along one direction other than a connection direction for optically interconnecting the optical fibers allowing an alignment of the receivable jack or plug assembly along the direction transversal to the connection direction. A spring loaded element resiliently urges said receiving means away from the support in one embodiment.