ADAPTER, EXPANSION DEVICE FOR ADAPTER, REPLACEMENT TOOL USED TOGETHER WITH EXPANSION DEVICE, REPLACEMENT ASSEMBLY AND METHOD OF REPLACING SLEEVE

摘要

An adapter for engaging with a fiber optic connector, the adapter comprises a frame, inside which is formed with at least one receiving portion for receiving at least one part of the fiber optic connector. Each receiving portion comprises a sleeve retainer and an alignment sleeve. The sleeve retainer includes a base mounted to the frame; a plurality of elastic arms extending from the base in an axial direction and arranged in a circumferential direction with two adjacent elastic arms being spaced from each other by a slot; and at least one stopper extending inwardly and radially from at least one free end of at least one elastic sleeve. The alignment sleeve is retained in the sleeve retainer by the at least one stopper to receive and align with the ferrule of the fiber optic connector. Each elastic arm has two side surfaces opposite to each other in the circumferential direction, at least one of the side surfaces being configured such that the elastic arm is expanded outwardly and radially by external forces applied to the at least one of the side surfaces. The present application also relates to an expansion device for expanding the sleeve retainer of the adapter, a replacement tool used together with the expansion device to replace the alignment sleeve, a replacement assembly, and a method for replacing the alignment sleeve.