A fiber-optic connector includes a connector body including a housing with a top surface and a bottom surface, the top surface and the bottom surface being joined together by two opposing side surfaces of the housing. The housing has a top slot and a bottom slot thereupon along a longitudinal axis, the top slot and the bottom slot being provided on the top surface and the bottom surface, respectively. A first key structure is slidably positioned within the top slot, and a second key structure is slidably positioned within a bottom.

A fiber optic ferrule receiver includes a main body that has an opening extending between the front end and the rear end and being defined at least by a portion of internal surfaces of the four sides. A first side in the opening has first tapered surface and a second tapered surface, the first tapered surface reducing the opening between the rear end and a first position and the second tapered surface increasing the opening between the first position and the front end. There is also a second side in the opening and across the opening from the first side, the second side has a third tapered surface and a fourth tapered surface, the third tapered surface reducing the opening between the rear end and a second position and the second tapered surface increasing the opening between the second position and the front end. There is also a first projection extending into the opening from the first side to engage a first portion of the fiber optic ferrule at the first position, and a second projection extending into the opening from second side to engage a second portion of the fiber optic ferrule at the second position.

An optical fiber connector of a networking module faceplate assembly includes a shuttle body, a connection assembly, and a retention clip. The shuttle body including a fiber slot extending across the shuttle body and adapted for an optical fiber to extend therethrough. The connection assembly is adapted to connect the optical fiber of the networking module to an external optical fiber connector. The connection assembly includes a ferrule flange fiber termination, a split sleeve, and a ferrule. The ferrule flange fiber termination positioned within the shuttle body and adapted to splice to an end of the optical fiber. A length of the optical fiber connector can be less than half a length of the external optical fiber connector.

Termini assemblies of electrical cable connector assemblies and methods of formation include a termini housing configured to receive an electrical cable and a dynamic seal assembly disposed in the termini housing and including a first portion having an O-ring seal configuration and configured to seal the termini assembly up to a pressure threshold and a second portion having a cup seal configuration and configured to seal the termini assembly at pressures greater than the pressure threshold. Methods of installing the electrical cable connector assemblies include installing the electrical cable connector assembly in a low or high pressure application, wherein installation in the low pressure application results in at least one of the first and second portions of the dynamic seal assembly sealing the termini assembly, and wherein installation in the high pressure application results in the second portion of the dynamic seal assembly sealing the termini assembly.

Provided is an optical connector used for connecting an optical waveguide substrate and an optical-fiber connector member, where the optical connector comprises a plurality of positioning structures, each having a cylindrical hole for inserting another end of a pin which has an end inserted into the connector member, and a groove formed on a second surface perpendicular to a first surface on which an open end of the hole is located, and where the groove and the hole are continuous, the groove has an arc-shaped cross section, and a center of a circle formed by a cross section of the hole and a center of an arc formed by the cross section of the groove are identical, and when the optical connector is coupled to the optical waveguide substrate that comprises a plurality of protrusions having a rectangular cross section, in each of the plurality of positioning structures, at least two corners of a corresponding protrusion among the plurality of protrusions are supported by an inner wall of the groove.

An optical connector ferrule according to an embodiment includes an MT ferrule, and a spacer mounted on an optical end surface of the MT ferrule and having a guide hole into which a guide pin is inserted. The spacer has a contact surface that contacting the counterpart connector and a recess surrounded by the contact surface. The spacer includes a lens part exposed on a bottom surface of the recess and optically coupled to the optical end surface of the MT ferrule and a base part that retains the lens part by surrounding the lens part. The material of the lens part and the material of the base part are different from each other, and the difference between the linear expansion coefficient of the base part and the linear expansion coefficient of the MT ferrule is 0.5×10.sup.−5/° C. or less.

A fiber optic connector having a ferrule that forms an optical connection with another fiber optic connector. An outer housing supports the ferrule and has a front end portion and a longitudinal centerline axis. The front end portion includes a front end face with a portion of the ferrule being forward of the front end face. The front end portion includes a protector that is shaped and arranged to protect the ferrule. The protector is arranged so that the fiber optic connector and another fiber optic connector of identical construction can, starting in the same orientation, be mated together by rotating said other fiber optic connector 180° about an axis perpendicular to the longitudinal centerline axis, aligning the longitudinal centerline axes and moving the fiber optic connectors along the longitudinal centerline axes until the fiber optic connectors are mated to form the optical connection.

Provided is an optical connector used for connecting an optical waveguide substrate and an optical-fiber connector member, where the optical connector comprises a plurality of positioning structures, each having a cylindrical hole for inserting another end of a pin which has an end inserted into the connector member, and a groove formed on a second surface perpendicular to a first surface on which an open end of the hole is located, and where the groove and the hole are continuous, the groove has an arc-shaped cross section, and a center of a circle formed by a cross section of the hole and a center of an arc formed by the cross section of the groove are identical, and when the optical connector is coupled to the optical waveguide substrate that comprises a plurality of protrusions having a rectangular cross section, in each of the plurality of positioning structures, at least two corners of a corresponding protrusion among the plurality of protrusions are supported by an inner wall of the groove.

An optical connector includes: a plurality of first ferrules; a first housing that houses the plurality of first ferrules; a plurality of second ferrules; and a second housing that houses the plurality of second ferrules. The first housing includes: a plurality of first inner housings; and a first outer housing. The optical connector butt-couples the first ferrules and the second ferrules, respectively, by mating the first housing and the second housing. Each of the plurality of first inner housings houses at least one of the plurality of first ferrules. The first outer housing is releasable from the plurality of first inner housings. The plurality of first inner housings and the second housing are mated in stages. When each of the plurality of first inner housings and the second housing are mated, each of the plurality of first inner housings to be mated is released from the first outer housing.

An elastic member according to an embodiment is an elastic member that biases a ferrule retaining a plurality of optical fibers in a connecting direction. The elastic member is stored in an inner housing that accommodates the ferrule, the elastic member has a space in its inside into which a 16-fiber tape fiber is inserted, and the elastic member is in a noncircular shape in a cross section intersecting with the connecting direction. The elastic member includes a pair of first portions having an outer surface opposite to a pair of inner surfaces in an arc shape of the housing, the inner surfaces being opposite to each other along a first direction intersecting with the connecting direction and a pair of second portions opposite to the tape fiber along a second direction intersecting with both of the connecting direction and the first direction.