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MX Universal Optical Fiber Splice is a high performance, easy-to-use, mechanical optical fiber splice. MX Universal Optical Fiber Splice can be used with either single-mode or multimode fibers with a cladding diameter of 125 microns. MX Universal Optical Fiber Splicewill accommodate any combination of fibers with coating diameters from 250 mm to 900 mm. In addition, the Universal Optical Fiber Splice incorporates a single cleave length for splicing both 250 and 900 micron coated fibers and provides the ability to "re-position" fibers for increased splicing yields. The splice consists of four molded polymeric components and an aluminium alloy alignment element. The four polymeric components are: Jacket, End Plug (2), and Cap. The jacket is provided with a compartment to house the aluminium alloy element. The end plugs are attached to each end of the jacket and locate the element laterally within the splice jacket. Each splice end plug contains a fiber entry port which is used to guide either 250 or 900 micron coated optical fiber into the alignment element. During splice actuation, the cap acts on the element to align and secure the fibers within the splice. During assembly, the splice is held within the Mechanical Assembly Tool. After the fibers are inserted into the splice, the cap is depressed with the Assembly Tool. The motion of the cap squeezes the "legs" of the element such that the "legs" come together. The fibers are permanently aligned and gripped in the fiber holding region of the splice when the cap is actuated.This splice has an insertion loss of <0.2dB with a minimum tensile load of 4.4N (1.0lb-f) and splice reflection no greater than -40dB.