Optical waveguides – With disengagable mechanical connector – Optical fiber/optical fiber cable termination structure
Patent
1992-09-29
1994-02-22
Healy, Brian
Optical waveguides
With disengagable mechanical connector
Optical fiber/optical fiber cable termination structure
385 77, 385 83, 385 78, 439680, 439681, G02B 626
Patent
active
052895548
ABSTRACT:
A fiber optic connector for a fiber distributed data interface (FDDI) has a keying element located along the centerline of the plug which may be rotated to provide different polarizations for the plug. The plug has a cable entering one end, and breaking out into two fibers which terminate in ferrules at the other end of the plug. The keying element has a post which is slidably received in a hole through the plug, the hole positioned in a groove located along the centerline of the plug; an annular flange is formed at the distal end of the post to retain it within the hole. The post is molded with a square keyway block which has two channels in its upper surface. The channels are orthogonal, and one is located along the centerline of the block while the other is located along one side of the block. The plug mates with a receptacle having a spline on its inner surface, located in one of four possible configurations near the centerline of the receptacle. The width of the spline is equal to the width of the channels in the keyway block. By pushing the distal end of the post of the keying element, the element clears the upper surface of the plug and may be rotated to one of three positions, whereby one of the channels is located at a position corresponding to the position or keying format of the spline in the receptacle. Indicia may be provided on the keying element and/or plug to designate the particular format corresponding to each orientation of the element.
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Appendix F of ANSI Standard X3T9.5/84-48. (See FIGS. 4-5 of that standard). Dated Jul. 1, 1988.
Bylander James R.
Cubukciyan Nuran
Puchammer Julius T.
Griswold Gary L.
Healy Brian
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Musgrove Jack V.
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