A cable clamp includes an elongated, open-top base having a first end, a second end, and a central region. A suspension arm extends from the open-top base. An eyelet having an opening, a top portion, and a base portion is coupled to the suspension arm. The eyelet base portion has a first width and the top portion has a second width greater than the first width. A keeper is coupled to the base.
F16L 3/10 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p.ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection fractionnés, c. à d. à deux éléments en prise avec le tuyau, le câble ou le conduit de protection
2.
HIGH DENSITY AND BANDWIDTH FIBER OPTIC APPARATUSES AND RELATED EQUIPMENT AND METHODS
High-connection density and bandwidth fiber optic apparatuses and related equipment and methods are disclosed. In certain embodiments, fiber optic apparatuses are provided and comprise a chassis defining one or more U space fiber optic equipment units. At least one of the one or more U space fiber optic equipment units may be configured to support particular fiber optic connection densities and bandwidths in a given 1-U space. The fiber optic connection densities and bandwidths may be supported by one or more fiber optic components, including but not limited to fiber optic adapters and fiber optic connectors, including but not limited to simplex, duplex, and other multi-fiber fiber optic components. The fiber optic components may also be disposed in fiber optic modules, fiber optic patch panels, or other types of fiber optic equipment.
Retention bodies (60) for securing a fiber optic cable thereto for optical connectorization are disclosed along with fiber optic cable assemblies. The fiber optic cable (30) is inserted into a passage of the retention body and secured to the same using a bonding agent and/or a mechanical element. The rear end opening of the passage is configured for inserting and securing an end portion of the fiber optic cable having at least one strength component and a portion of a cable jacket. Additionally, the retention body has a buckling chamber (91) disposed within the retention body passage for accommodating movement of optical fiber. The retention body is latched to a sub-plug assembly via latching fingers or integrated therewith.
Fiber optic cable assemblies and related components, securing methods, and fiber optic cable preparation methods for securing of a fiber optic cable to a retention body and/or fiber optic connector are disclosed. An end portion of the fiber optic cable is prepared and inserted into a retention body or the like for securing the cable to the same. In one embodiment, a partially exposed portion of a strength component (34a, 34b) and a portion of a cable jacket are secured to a retention body while another portion of the strength component remains secured to the cable jacket. In this manner, the fiber optic cable is secured to the reten-tion body (60) while the strength component and the cable jacket also remain secured to each other for providing strain relief. A compartment (54a) for receiving additional adhesive is formed as recess in the cable jacket.
The disclosure is generally directed to a fiber optic adapter assembly for mating fiber optic connectors. The fiber optic adapter includes a body, an alignment cap, and a shutter door. The alignment cap and the body together define a space with the shutter door pivotally disposed in the space for inhibiting debris from entering through the opening and into the body. The shutter door is configured to pivot inwardly when contacted by a fiber optic connector being inserted through the at least one opening and into the body. Additionally, the shutter door includes at least one standoff and at least one latch, wherein the latch is configured to engage and assist in retaining a fiber optic connector that is inserted into the fiber optic adapter assembly.
Disclosed are fiber optic assemblies having at least one optical fiber (102) disposed within a tube (106) and/or cav-ity along with a powder or powder blend (104) that is at least partially mechanically attached thereto In one embodiment, the powder or powder blend includes a water-swellable component that is mechanically attached to about 30 percent or less of the surface area of the tube wall while still effectively blocking the migration of water along the tube Other embodiments may have the powder or power blend mechanically attached to the tube, cavity, or the like at relatively high percentage levels of the total powder or powder blend within the assembly, thereby inhibiting unintentional migration along the tube, cavity, or the like
A hybrid surge protector for a network interface device (NID) is disclosed. The hybrid surge protector includes a fail-safe spring connected to the ground electrode of a three-electrode gas tube. Tabs on the fail-safe spring are held away from the gas-tube end electrodes by a fusible element. The hybrid surge protector also includes metal--oxide varistor elements ("MOVs") in contact with the gas-tube end electrodes and with the ground electrode via an MOV spring. This arrangement provides for two initial paths to ground-one path from the gas-tube end electrodes to the ground electrode through the gas tube, and another from the gas-tube end electrodes to the ground electrode through the MOVs and the MOV spring. The dominant path to ground starts as the MOV ground path but switches to the gas-tube path as the gas tube becomes activated. Another path to ground via the fail-safe spring is also available should the gas tube overheat. A surge protection module that includes the hybrid surge protector is also disclosed.
Disclosed are fiber optic assemblies having at least one optical fiber and a water-swellable powder within a tube and/or cavity and methods for making the same. Fiber optic assemblies of the present invention use relatively low-levels of water-swellable powder while still effectively blocking the migration of tap water and/or saline solutions of 3% by weight along the tube and/or cavity. Furthermore, cleaning of the optical fibers is not necessary before connectorization like with conventional fiber optic cables that use a gel or grease. Generally speaking, at least some of the water-swellable powder is transferred to the inside surface of the tube, cavity, optical fiber or the like; rather, than being a loose powder that is able to migrate within the tube or cavity. Moreover, the existence of water-swellable powder within the fiber optic assembly or cable is nearly transparent to the craft since relatively low-levels are used.
There is provided fiber drop terminal ("FDT") assemblies for providing selective connections between optical fibers of distribution cables and optical fibers of drop cables, such as in multiple dwelling units. The FDT assemblies include a mounting plate that enables the FDT to be conveniently and securely mounted to a generally vertical surface, such as a wall. The mounting plate is structured such that the base of the FDT must be removed before the mounting plate can be removed, and the cover of the FDT is structured that neither the base nor the mounting plate can be removed without first removing the cover. The cover may be selectively locked to the base and/or mounting plate with a locking fastener; therefore, only technicians able to remove the locking fastener may remove the cover, base, and/or mounting plate of the FDT assembly.
There is provided a fiber optic receptacle and plug assembly adapted to provide electrical connectors for electrical conductors. The receptacle and plug define complimentary alignment and keying features for ensuring that the plug is mated with the receptacle in a predetermined orientation. An alignment sleeve is disposed within the plug for receiving a multi-fiber receptacle ferrule and a multi-fiber plug ferrule. The fiber optic receptacle and corresponding plug each include a biasing member assembly for urging the receptacle ferrule and the plug ferrule towards one another, wherein the biasing member assembly includes a spring, a spring centering cuff and a ferrule boot that operatively engage the rear of the receptacle ferrule and the plug ferrule, respectively, to substantially center a spring biasing force on the end face of the receptacle ferrule and the plug ferrule. The electrical connectors of the receptacle and plug are preferably provided separate from the biasing member assembly.
A line module includes a plurality of pivoting insulation displacement connector holders, an insulation displacement connector (IDC) positionable in at least one holder when the holder is in a connected position, and a gel-less jack in electrical communication with at least one IDC.
A multiport includes a multiport housing top piece, and a multiport housing bottom piece welded to the housing top piece. Alternatively, a method for fabricating a multiport includes providing a multiport housing top piece, providing a multiport housing bottom piece, and welding the housing top piece to the housing bottom piece. Additionally, a method of fabricating a multiport housing piece includes providing a body, and welding a plurality of connector adapters to the body. Alternatively, an optical fiber connector closure includes a connector housing top piece, a connector housing bottom piece, and a strength seal positioned between the top piece and the bottom piece such that said connector closure has a burst test rating of about 5 to about 125 Pounds per Square Inch (PSI).
A fiber optic receptacle and plug assembly includes a fiber optic receptacle adapted to be mounted within a connector port of a network connection terminal and a fiber optic plug mounted upon an end of a fiber optic cable, wherein the fiber optic receptacle and the fiber optic plug comprise complimentary alignment and keying features that allow the fiber optic receptacle to receive only a fiber optic plug of like ferrule configuration. The fiber optic receptacle includes an alignment sleeve insert operable for receiving and optically connecting at least one receptacle ferrule and at least one opposing plug ferrule. The receptacle is suitable for use in enclosures requiring a minimal receptacle penetration depth, wherein the fiber optic receptacle comprises a shoulder that is secured against an inner wall of the enclosure to provide strain relief against cable-pulling forces of up to about 600 lbs.
A fiber optic cable has at least one optical fiber, at least one strength member having a major strength member dimension, and a cable jacket. The cable jacket has two major surfaces that are generally flat and includes a cavity with a cavity minor dimension generally orientated with a minor dimension of the fiber optic cable, wherein the at least one optical fiber is disposed within the cavity. In one embodiment, the cavity minor dimension of the fiber optic cable is about the same size or larger than the strength member dimension that is generally aligned with a minor dimension of the cable, thereby allowing access to the cavity when the fiber optic cable is entered while inhibiting damage to the at least one optical fiber. Fiber optic cables of the present invention are also suitable as a portion of a cable assembly.
There is provided a cable attachment for sealing and retaining cables entering an opening of a telecommunications closure. The cable attachment includes an adapter body (12) with an opening through which the cable (24) passes; and a grip device (50) and grommet device (16) are also located within the opening of the adapter body for strain relieving and sealing, respectively, the cable passing through the adapter body. The cable attachment further includes a bolt portion (20) that is selectively moveable relative to the adapter body for applying a force to the grommet device for selectively creating a seal about an outer surface of the cable. Alternative designs for sealing and/ or strain relieving cables entering a closure are provided.
A fiber optic receptacle and plug assembly adapted to be mounted within an opening through a wall of a connection terminal. The receptacle and plug define complimentary alignment and keying features for ensuring that the plug is mated with the receptacle in a predetermined orientation. An alignment sleeve is disposed within the plug for receiving a multi-fiber receptacle ferrule and a multi-fiber plug ferrule. The fiber optic receptacle and corresponding plug each include a biasing member assembly for urging the receptacle ferrule and the plug ferrule towards one another, wherein the biasing member assembly includes a round spring, a spring centering cuff and a ferrule boot that operatively engage the rear of the receptacle ferrule and the plug ferrule, respectively, to substantially center a spring biasing force on the end face of the receptacle ferrule and the plug ferrule.
A fiber optic receptacle and plug assembly adapted to be mounted within an opening through a wall of a connection terminal. The receptacle and plug define complimentary alignment and keying features for ensuring that the plug is mated with the receptacle in a predetermined orientation. An alignment sleeve is disposed within the plug for receiving a multi-fiber receptacle ferrule and a multi-fiber plug ferrule. The fiber optic receptacle and corresponding plug each include a biasing member assembly for urging the receptacle ferrule and the plug ferrule towards one another, wherein the biasing member assembly includes a round spring, a spring centering cuff and a ferrule boot that operatively engage the rear of the receptacle ferrule and the plug ferrule, respectively, to substantially center a spring biasing force on the end face of the receptacle ferrule and the plug ferrule.
A robust protective casing is provided that includes an inner tubing having a passageway therethrough, an outer tubing, and a plurality of flexible strength members disposed between the inner and outer tubing. The protective casing has a wall tubing thickness ratio of the inner tubing wall thickness to the outer tubing wall thickness of about .05 or less while still inhibiting the kinking of the protective casing during relatively small bend radii. Additionally, an outer diameter of the protective casing is relatively small while still allowing the routing of a standard sized 900 micron tight-buffered optical fiber through the passageway. Thus, the protective casing is advantageous in applications where limited space is available space. A fan-out assembly using the protective casings is also described.
A field installable fiber optic connector includes a housing and a ferrule holder inserted from the rearward end of the housing. A spring element inserted into the front of the housing and a spring element retainer attached to the ferrule holder bias the ferrule holder forward. An optical fiber stub is disposed between opposed splice members and a field fiber is inserted between the splice members and guided by a groove into abutment with the end of the optical fiber stub. A cam disposed about the ferrule holder is movable to facilitate insertion of the field fiber and to clamp the field fiber and the optical fiber stub between the splice members. In one embodiment, a trigger is coupled to the housing. The trigger is disposed about and slides relative to the ferrule holder, thereby biasing the housing forward relative to the ferrule holder to aid in latching the connector.
A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.
G02B 6/10 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques
A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.
A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.
A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.
G02B 6/10 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques
A terminating device for terminating subscriber wiring to pairs of insulation displacement type conductive contacts includes a protective sealing gel disposed within the terminating device. The gel encapsulates the conductive contacts and is characterized by a dynamic storage modulus G' and a dynamic loss modulus G" expressed in dynes/cm2 having a dynamic crossover point between about 1 rad/sec and about 20 rad/sec at any temperature in the range between about -40~C to about 80~C. The loss modulus G" is greater than the storage modulus G' at a shear frequency greater than the dynamic crossover point and is less than the storage modulus G' at a shear frequency less than the dynamic crossover point. The gel has an ultimate elongation greater than about 1000%, an ultimate tensile strength greater than about 2 psi, and a cone penetration value expressed in tenths of a millimeter between about 255 and 265.
A fiber optic receptacle and plug assembly comprising a fiber optic receptacle (20) adapted to be mounted within a connector port of a network connection terminal and a fiber optic plug (22) mounted upon an end of a fiber optic cable, wherein the fiber optic receptacle and the fiber optic plug comprise complimentary alignment and keying features (94) that allow the fiber optic receptacle to receive only a fiber optic plug of like ferrule configuration. The fiber optic plug comprises an alignment sleeve (74) operable for receiving and optically connecting at least one plug ferrule and at least one receptacle ferrule. The receptacle is suitable for use in enclosures requiring a minimal receptacle penetration depth, wherein the fiber optic receptacle comprises a shoulder (48) that is secured against an inner wall of the enclosure to provide strain relief against cable pulling forces of up to about 600 lbs.
A fiber optic distribution cable assembly (20) includes a distribution cable (30) having at least one predetermined mid-span access location (22) and a tether (26) for mitigating cable length errors at the mid-span access location in a pre-engineered fiber optic communications network. At least one optical fiber (28) of the distribution cable is accessed at the mid-span access location and optically connected to an optical fiber (24) disposed within the tether (26). Preferably, the first end of the tether (26) is attached to the distribution cable (30) by overmolding the mid-span access location with a flexible encapsulant material (52). The end of the optical fiber of the tether may be splice-ready or connectorized at the second end of the tether and protected within a crush resistant tube. Alternatively, the second end of the tether may terminate in an optical connection terminal defining at least one optical connection node, or may terminate in a linear chain of articulated optical connection nodes.
A field installable fiber optic connector includes a housing, a spring element seat and a ferrule holder that is inserted from the rearward end of the housing. A spring element inserted into the front of the housing abuts the spring element seat. A spring element retainer attached to the ferrule holder abuts the forward portion of the spring element to compress the spring element and bias the ferrule holder forward. An optical fiber stub disposed between opposed splice members in an aligning groove terminates intermediate the ends of the splice members. An optical fiber is inserted between the splice members and guided by the groove into abutment with the end of the optical fiber stub. A cam disposed about the ferrule holder is movable to facilitate insertion of the optical fiber and to clamp the optical fiber and the optical fiber stub between the splice members.
A connector port is adapted for a (NID) to receive a connectorized optical fiber from inside the NID and a pre-connectorized drop cable from outside the NID. An exterior connector port includes a base positioned within an opening defined by an external wall of the NID, a mount on the base and a connector receptacle secured to the mount adjacent the external wall. An interior connector port includes an insert positioned within an opening defined by an external wall of the NID, a bracket mounted inside the NID and a connector receptacle secured to the bracket. A connector port also includes an insert positioned within an opening defined by a wall of the NID and a connector port secured to the insert. The connector port permits a field technician to readily connect, disconnect and reconfigure optical connections between the connectorized optical fiber and the pre- connectorized drop cable in the field.
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
29.
FIBER OPTIC ASSEMBLIES, CABLES, AND MANUFACTURING METHODS THEREFOR
An optical assembly and methods of manufacturing the same include a longitudinal cavity, at least one optical waveguide being disposed in the longitudinal cavity having a predetermined length, and at least one water- swellable yarn being disposed within the longitudinal cavity and having a predetermined length. The predetermined length of the at least one water- swellable yarn being greater than the predetermined length of the at least one optical waveguide so that the at least one water-swellable yarn and the at least one optical waveguide generally act as independent bodies within the longitudinal cavity.
brevets
