An optical adaptor for mounting to a receptacle to optically couple connectorized opticable cables comprises an assembly of an optical interface to provide an optical path between a first and a second one of the connectorized optical cables to optically couple the first and the second connectorized optical cable. The assembly of the optical interface comprises a mounting element to mount the optical adaptor to the receptacle. The mounting element is configured to receive the assembly of the optical interface and to mechanically couple the first connectorized optical cable to the mounting element so that the first connectorized optical cable is optically coupled to the first side of the assembly of the optical interface.