A fiber optic cassette includes a body defining a front and an opposite rear. A cable entry location is defined on the body for a cable to enter the cassette, wherein a plurality of optical fibers from the cable extend into the cassette and form terminations at non-conventional connectors adjacent the front of the body. A flexible substrate is positioned between the cable entry location and the non-conventional connectors adjacent the front of the body, the flexible substrate rigidly supporting the plurality of optical fibers. Each of the non-conventional connectors adjacent the front of the body includes a ferrule, a ferrule hub supporting the ferrule, and a split sleeve surrounding the ferrule.

An adapter includes an upper lid housing provided in right and left wall surfaces with locking projections and provided in an upper wall surface with an arm, a shutter plate arranged in an opening side of the upper lid housing in a rising direction, a sleeve holder constructed by a first cylinder and a second cylinder holding a split sleeve therebetween, a lower lid housing provided in right and left wall surfaces with locked hole portions for fitting the locking projections and provided in an upper wall surface with a locking concave portion locking the arm, and a through hole for inserting a fitting projection provided in a protruding manner in a leading end of a bottom plate of the lower lid housing into a lower end of the upper lid housing. Thus, a guiding performance is improved and an LC-type optical connector plug can be housed compactly.

The present disclosure relates to a fiber optic connector for use with a fiber optic adapter. The fiber optic connector includes a connector housing having an end defining a plug portion. A ferrule assembly is mounted at least partially within the connector housing. The ferrule assembly includes a ferrule located at the plug portion of the connector housing. A sealing member is mounted about an exterior of the connector housing for providing a seal between the connector housing and the adapter. The fiber optic connector further includes first and second separate retaining mechanism for retaining the fiber optic connector within the fiber optic adapter.

A fiber optical adapter includes a base body and a base element. The base body includes a receiving groove. Two ends of the base body form insertion openings respectively communicating with the receiving groove. The base element is in the receiving groove. The base element includes a first connection member, a second connection member combined with the first connection member, and socket members. Each socket member is received in the corresponding first sleeve member of the first connection member and the corresponding second sleeve member of the second connection member.

A fiber optic connector and cable assembly includes a cable with one or more strength members secured to a connector that is connectable to both a hardened and a non-hardened fiber optic adapter. The cable can include multiple cable types with various shapes and strength member configurations. The connector includes a connector housing having a one-piece main body and a cover piece mounted thereon. The one-piece main body defines a plug portion compatible with the adapters. A ferrule assembly is mounted in the plug portion and biased outwardly by a spring. An insert within the connector housing includes a spring stop for holding the spring and a cable retention portion for securing the strength members of the cable. The spring stop and the cable retention portion can be included on a one-piece insert or they can separately be included on separate inserts. The cable retention portion of the insert and the cover piece can take various forms suited for a particular cable of a given fiber optic connector and cable assembly.

A fiber optical connector includes a connector housing and an optical-fiber component. The connector housing includes a receiving space. Two ends of the connector housing respectively form a first connector opening and a second connector opening. The first connector opening and the second connector opening communicate with the receiving space. Plural pins are assembled on a side surface of the connector housing, and the optical fiber component is inserted into the receiving space from the first connector opening. The connector housing has an improved structural strength. The assembling between the pins and the circuit board allows the connector to be fixedly positioned with the circuit board.

An optical connector that requires fewer components and also has a simpler structure includes an optical fiber including a glass fiber and a resin coating surrounding the glass fiber; a ferrule having a flange outside the ferrule and a through-hole inside the ferrule, the ferrule holding, in the through-hole, a portion of the glass fiber exposed from the resin coating at an end of the optical fiber; a plug frame accommodating the ferrule; and an elastic member abutting the flange and biasing the ferrule. The flange has a flat surface on an outer periphery thereof, and the plug frame has a guide surface configured to unrotatably align the ferrule biased by the elastic member in contact with the flat surface of the flange. When the ferrule is moved in the direction opposite to the biasing direction, the flat surface is separated from the guide surface to bring the ferrule into a floating state relative to the plug frame.

A telecommunication enclosure includes an environmentally sealed housing having an interior volume. The sealed enclosure includes a housing wall defining an opening that extends from the interior to an exterior of the enclosure, the housing wall defining interior threads within the opening. A port-defining element mounts within the opening, the port-defining element defining exterior threads that are threadingly mated with respect to the interior threads to retain the port-defining element within the opening. The port-defining element defines a connector port for receiving a hardened fiber optic connector.

The present disclosure relates to a ruggedized/hardened fiber optic connection system designed to reduce cost. In one example, selected features of a fiber optic adapter are integrated with a wall (24) of an enclosure (22). The adapter comprises a sleeve port (26) into which an optical adapter subassembly is inserted. The subassembly comprises a sleeve part (44) which is inserted into the sleeve, a ferrule alignment sleeve (48) which is inserted into the sleeve part, a ferrule (55) with hub which is inserted into the alignment sleeve, and fixing clip (46) securing the ferrule with hub into the alignment sleeve and the sleeve part.

An alignment sleeve for an optical fiber adapter includes features to bring precision alignment between optical fiber cores. The sleeve includes a tubular inner area to accept first and second ferrule ends of first and second connectors. First and second tabs project from first and second ends of the sleeve. The first and second tabs slide into holes in the ferrule holders or barrels of the first and second connectors, so as to provide rotational alignment of the first and second ferrules, which may be presenting multi-core optical fibers. A mid-portion of the sleeve may include geometrical features to enable a snap fit of the sleeve into a housing of the adapter. More than one tab may be employed at the ends of the sleeve, and the tabs may have defined spacing and/or dimensions to enable security keying, only permitting coupling between connectors possessing matching holes in the ferrule barrels.