An optical splitter module for splitting an input signal from an input optical fiber is provided. The optical splitter module includes the input optical fiber, output optical fibers, and a splitter device configured to split the input signal from the input optical fiber into a plurality of output signals that are each directed into one of the output optical fibers. The optical splitter module also includes a fanout device defining openings that are each configured to receive one of the output optical fibers. The optical splitter module defines an internal volume and an exit cavity. The input optical fiber, the output optical fibers, the splitter device, and the fanout device are each received in the internal volume. The fanout device defines a side length, the exit cavity defines a width, and the side length of the fanout device is greater than the width of the exit cavity.
G02B 27/10 - Systèmes divisant ou combinant des faisceaux
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
2.
HIGH DENSITY OPTICAL SPLITTER WITH EXTERNAL FANOUT DEVICE
An optical splitter assembly for splitting an input signal from an input optical fiber is provided. The optical splitter assembly includes an optical splitter module having an input optical fiber, output optical fibers, and a splitter device configured to split the input signal from the input optical fiber into output signals that are each directed into one of the output optical fibers. The optical splitter assembly also includes external fanout devices that are provided outside of the optical splitter module. The optical splitter module defines an internal volume. The input optical fiber, the output optical fibers, and the splitter device are provided in the internal volume. One or more groupings of output optical fibers extend out of the optical splitter module to an external fanout device. Individual output optical fibers extend out of each of the external fanout devices with the individual output optical fibers being separate from each other.
G02B 27/10 - Systèmes divisant ou combinant des faisceaux
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
A cable port seal is provided including an upper and lower elements for cables to pass and be compressed therebetween to provide an environmental barrier. The upper or lower elements include a first sealing member having a first face, an opposing second face, and a first sealing edge with a first and second ends, the first sealing edge including first cable cutouts disposed proximate to each of the first and second ends of the first sealing member, a second sealing member having a third face, an opposing fourth face, and a second sealing edge with a first and second ends, the second sealing edge including at least one second cable cutout disposed proximate to each of the first end and the second end of the second sealing member, and at least one third cable cutout disposed between each of the at least one second cable cutouts.
Provided are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central cable bore, and the outer surface defines an outermost surface of the optical fiber cable and a cable cross-sectional area (AC). At least one buffer tube is disposed within the central cable bore. Each buffer tube has an interior surface defining a buffer tube cross-sectional area (ATube, ID). A plurality of optical fibers (N) are disposed within the at least one buffer tube. Each optical fiber has a fiber diameter of 160 microns to 200 microns. The plurality of optical fibers have a total fiber area (AF). The buffer tube has a free space (1-AF/ATube, ID) of at least 37%, and the optical fiber cable has a fiber density (N/AC) of at least 3.25 fibers/mm2.
Embodiments of the disclosure relate to a polymer composition that includes at least one polymer and an aversive additive dispersed in the at least one polymer. The aversive additive is made of a zeolite material and an aversive material infused within pores of the zeolite material. In embodiments, the aversive additive is incorporated into an optical fiber cable. The optical fiber cable includes at least one optical fiber and a polymeric jacket that surrounds the at least one optical fiber. The polymeric jacket is made of a polymer matrix and the aversive additive is dispersed in the polymer matrix. Embodiments of a method of infusing an aversive material into a zeolite material to form the aversive additive are also disclosed herein.
Fiber optic terminals (200) with wavelength division multiplexing (WDM) and connection ports supporting physical path redundancy are disclosed. In one embodiment, a terminal (200) comprises a shell (210) housing at least one primary wavelength division multiplexer (PWDM) device, at least one redundant wavelength division multiplexer (RWDM) device, at least one input connection port (236) having a first input optical fiber in optical communication with the PWDM device and a second input optical fiber in optical communication with the RWDM device, at least one multifiber primary output connection port (260P), and at least one multifiber redundant output connection port (260R). The input connection port (236) or output connection ports (260P,260R) can support optical connection with one or more optical fibers of an external multi-fiber connector as desired.
Embodiments of a polymer composition are provided. The polymer composition incudes at least one polymer and an aversive additive dispersed in the at least one polymer. The aversive additive includes a porous inorganic material having pores and an aversive material contained within the pores of the porous inorganic material. In embodiments, the polymer composition may be incorporated as jacketing into an optical fiber cable. Also disclosed is a method including the step of infusing an aversive material into a porous inorganic material to form an aversive additive. The porous inorganic material includes particles having an average porosity of from 25% to 75% and a median diameter of 100 µm or less.
An optical communication cable and related method is provided. The cable includes a cable body and a plurality of optical transmission elements surrounded by the cable body. The cable includes a reinforcement layer surrounding the plurality of optical transmission elements and located between the cable body and the plurality of optical transmission elements. The reinforcement layer includes a first portion and a second portion coupled together and extending longitudinally away from each other.
G02B 6/255 - Epissage des guides de lumière, p.ex. par fusion ou par liaison
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G02B 6/43 - Dispositions comprenant une série d'éléments opto-électroniques et d'interconnexions optiques associées
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p.ex. gaines ou armatures
9.
ANNEALED SUBUNITS IN BUNDLED DROP ASSEMBLY AND PROCESS OF ANNEALING SUBUNITS IN BUNDLED DROP ASSEMBLY
Embodiments of the disclosure relate to a bundled drop assembly. The bundled drop assembly includes a central member and a first layer of subunits wound around the central member in a bundled configuration. The first layer of subunits has at least one subunit containing at least one first optical fiber, and the first layer of subunits has a first maximum cross-sectional dimension in the bundled configuration. In an unrestrained configuration, the first layer of subunits has a second maximum cross-sectional dimension that is less than twice the first maximum cross-sectional dimension.
G02B 6/04 - 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 formés par des faisceaux de fibres
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
10.
MULTIPORTS AND OTHER DEVICES HAVING CONNECTION PORT INSERTS AND METHODS OF MAKING THE SAME
A multiport assembly including one or more optical adapters configured to receive an optical connector, a shell having a front face defining one or more connection port insert openings extending from an outer surface of the front face into a cavity of the shell, a connection port insert positioned at least partially within the one of the connection port insert openings of the shell, the connection port insert defining a body including an optical connector opening extending from a front end of the body to a rear end of the body, and a sealing member disposed between the connection port insert and the shell.
Devices such as multiports (200) comprising connection ports (236) with associated rotating actuators (310A) that are pivotly mounted to the device for engaging securing members (310M) along with methods for making the same. In one embodiment, the device comprises a shell (210), at least one connection port (236), and at least one rotating actuator (310A) that engages with a complimentary securing member (310M). The at least one connection port (236) is disposed on the multiport (200) with the at least one connection port (236) comprising an optical connector opening (238) extending from an outer surface (234) of the multiport to a cavity (216) of the multiport and defining a connection port passageway (233). The at least one securing member (310M) is associated with the connection port passageway (233), and turning the rotating actuators (310A) allows the release of an optical connector disposed in the connection port (236).
Several methods of deploying an optical fiber carrying structure along a road are provided. In one method a recess and channel are created within a road. The optical fiber carrying structure is deployed in the channel and a cover encloses the optical flber carrying structure within the channel. In another method the optical fiber carrying structure is anchored to the road and/or curb. In another method the optical fiber carrying structure is coupled to a brace that is affixed to the road. The brace facilitates quickly installing lateral transitions from the primary channel in the road to installation environments off the road.
Field-configurable optical devices and methods are disclosed. In one example, a field-configurable optical device includes a housing defining an enclosure, an input port located at the housing, a pass-through port located at the housing, a plurality of output ports located at the housing, a splitter (126) disposed within the enclosure, a plurality of couplers (820) within the enclosure, each coupler (820) including an input, a first output, and a second output. Each coupler (820) has a power splitting ratio between the first output (821A) and the second output (821B) that is different from the other couplers. An input port fiber optic jumper assembly within the enclosure. A pass-through port fiber optic jumper assembly is within the enclosure. Moving the input port fiber optic jumper assembly and the pass-through port fiber optic jumper assembly from a first coupler (820) to a second coupler (820) of the plurality of couplers (820) changes the power splitting ratio of the field-configurable optical device.
G02B 6/293 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux avec des moyens de sélection de la longueur d'onde
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
14.
FIBER OPTIC CONNECTORS HAVING AN INTERNAL RETENTION BODY
Retention bodies and fiber optic connectors and fiber optic cable assemblies including a retention body are disclosed. One aspect of the disclosure is directed to a retention body for a fiber optic connector that includes a front end and a rear end, at least one opening between the front end and the rear end, a front end wall at the front end, and a fiber guide extending from the front end wall. The fiber guide defines a fiber opening in the front end wall for receiving an optical fiber of a fiber optic cable. The retention body further includes a connector engagement surface at the second end that contacts an end of a connector housing when the retention body is inserted into the connector housing.
Female fiber optic connectors having a weatherproofing collar disposed rearward of a connection port opening that receives a fiber optic plug along with cable assemblies comprising the female fiber optic connector and with methods of making the same. The female fiber optic connectors comprise an actuator such as a rocker latch arm or the like disposed under the weatherproofing colloar used for releaseing or securing an external fiber optic plug that may be received in the connection port. The weatherproofing collar protects the actuator such as the rocker arm latch and surrounding area from dirt, debris, moisture and the like from ingress into the connector. One or more end caps may be used wiht the weatherproofing collar. The weatherproofing collar allows for a ruggedized fiber optic connector having a quick connect and release mechanism for the external fiber optic plug connector mated to the female fiber optic connector.
Optical devices including an optical splitter and a duplex optical connector are disclosed. In one embodiment, an optical device includes an optical splitter having an input, a network output, and a pass-through output, wherein the optical splitter is configured to split an input signal received at the input into a network optical signal at the network output and a pass-through output signal at the pass-through output. The optical device further includes a duplex connector having an input connection point and a pass-through connection point, an input waveguide optically coupling the input connection point to the input of the optical splitter, and a pass-through waveguide optically coupling the pass-through connection point to the pass-through output of the optical splitter.
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
17.
FEMALE FIBER OPTIC CONNECTORS HAVING A ROCKER LATCH ARM AND METHODS OF MAKING THE SAME
Female fiber optic connectors having a connection port opening for receiving a fiber optic plug and cable assemblies comprising the female fiber optic connector along with methods of making the same. The female fiber optic connectors comprise an actuator such as a rocker latch arm used for releasing or securing an external fiber optic plug that may be received in the connection port. A main barrel of the female fiber optic connector comprises a connection port suitable for receiving an external fiber optic plug connector. The female fiber optic connectors disclosed advantageously allow for an quick and easy connection with an external fiber optic plug connector for ruggedized or other desired applications. Methods for terminating the optical fibers of a cable to the female fiber optic connector for forming cable assemblies are also disclosed.
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of subunits each having a subunit coating surrounding at least one optical fiber. The subunit coating is made of a first material. The optical fiber ribbon also includes a plurality of bonds intermittently formed between adjacent subunits of the plurality of subunits. The plurality of bonds are made of a second material. Each bond of the plurality of bonds has a unique longitudinal position along a length of the optical fiber ribbon such that no other bond of the plurality of bonds is located at the unique longitudinal position. Further, each bond of the plurality of bonds includes a diffusion zone comprising a mixture of the first material and the second material.
An optical fiber cable that includes subunits is provided. Optical fiber cables are used to transmit data over distance. The subunits are twisted and stranded within the cable to reduce degradation of stranding during use of the cable. The subunits of one or more optical fiber cables are arranged in complimentary configurations that counteract their varying asymmetrical forces to provide an improved handling performance for the optical fiber cable.
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an interior surface and an exterior surface. The interior surface defines a central bore extending along a longitudinal axis of the optical fiber cable, and the exterior surface defines an outermost surface of the optical fiber cable. The optical fiber cable also includes a cable core including at least one optical fiber disposed within the central bore of the cable jacket. The cable jacket includes at least one access feature made of a first polymeric material disposed between the interior surface and the exterior surface. The first polymeric material has a first tensile strength (TS1). Each of the at least one access feature is surrounded by a second polymeric material of the cable jacket. The second polymeric material has a second tensile strength (TS2). TS1 ? (2/3)*TS2.
A cable includes a first copper conductor and a second copper conductor, and an insulation layer. The insulation layer is formed from a first polymer material, and is a single layer surrounding the first copper conductor and the second copper conductor. A discontinuity formed from a second polymer material is located within the insulation layer, between the first copper conductor and the second copper conductor. The discontinuity provides a weakness within the insulation layer. A jacket surrounds the insulation layer and is made of a third polymer material. A fiber optic ribbon may be located in the cable.
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of subunits each comprising a subunit coating surrounding at least two optical fibers arranged adjacently to each other. The subunit coating is made of a first material. A plurality of bonds are intermittently formed between adjacent subunits of the plurality of subunits. The plurality of bonds are made of a second material. The optical fiber ribbon includes a diffusion zone at an interface between each of the plurality of bonds and the subunit coating of each adjacent subunit. Each diffusion zone has a gradient of the second material in the first material. Further, the intermittent bonds may include one or more saddle surfaces formed by intersecting convex and concave curvatures. A method of forming such optical fiber ribbons is also disclosed.
G02B 6/04 - 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 formés par des faisceaux de fibres
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
23.
MULTI-FIBER OPTICAL CONNECTORS AND METHODS OF MAKING THE SAME
Multi-fiber fiber optic connectors and cable assemblies comprising a fiber optic connector. The fiber optic connector comprises a ferrule, a connector housing comprising a longitudinal passageway therethough, and a nose-piece. The nose-piece has a backstop that captures the multi-fiber ferrule and allows limited movement of the ferrule in the unmated state. In one embodiment, the connector housing comprises a keying portion and a locking portion. The fiber optic connectors disclosed advantageously allow for an quick and easy assembly of the multi-fiber connector for rugged or non-rugged applications. Methods for terminating the optical fibers of a cable to the fiber optic connector for forming a cable assembly are also disclosed.
Male plug fiber optic connectors having a conversion adapter for mating with a dissimilar connector are disclosed along with cable assemblies using the same. The fiber optic connector comprises a ferrule, a connector housing, and a nose-piece having a pocked disposed at a front portion. The pocket of the nose-piece is configured for allowing optical mating with a dissimilar connector using the conversion adapter. In one embodiment, the nosepiece of the connector is disposed forward of a keying portion disposed on the nosepiece. The fiber optic connectors disclosed advantageously allow for optical mating with dissimilar optical connectors with a quick and easy assembly for rugged applications or other optical communication networks.
Male plug fiber optic connectors having configured for mating with a dissimilar connector are disclosed along with cable assemblies using the same. The fiber optic connector comprises a ferrule, a connector housing, and a nose-piece having a pocket disposed at a front portion. The pocket of the nose-piece is configured for allowing optical mating with a dissimilar connector. In one embodiment, the pocket on the nosepiece of the connector is disposed on a forward portion of the nosepiece. The fiber optic connectors disclosed advantageously allow for optical mating with dissimilar optical connectors with a quick and easy assembly for rugged applications or other optical communication networks.
An optical fiber cable that includes subunits is provided. Optical fiber cables are used to transmit data over distance. Generally, large distribution cables that carry a multitude of optical fibers from a hub are sub-divided at network nodes into subunits. To furcate the subunits, the respective jackets of the subunits must balance many different characteristics, including flexibility, temperature tolerance, and safety properties.
G02B 6/04 - 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 formés par des faisceaux de fibres
An optical fiber cable that includes subunits is provided. The cable has an outer jacket having a thickness of at least 2.0 millimeters and that is made from a fire retardant polymer material having a PHRR value of 222 kw/m2 when tested in a cone calorimeter measured according to ASTM E1354 with a heat flux of 50 kW/m2. The cable meets the requirement of UL 1666 burn test for riser cables and the requirements of EN 50399 burn test for CPR class Cca cables.
G02B 6/46 - Procédés ou appareils adaptés à l'installation de fibres optiques ou de câbles optiques
H02G 3/02 - Installations de câbles ou de lignes électriques ou de leurs tubes de protection dans ou sur des immeubles, des structures équivalentes ou des véhicules - Détails
29.
FOAMED TUBE HAVING FREE SPACE AROUND RIBBON STACKS OF OPTICAL FIBER CABLE
An optical fiber cable including a cable jacket having an outer jacket surface that is an outermost surface of the optical fiber cable, and the inner jacket surface defineing an internal jacket bore; at least one subunit disposed within the internal jacket bore, each subunit includes a foamed tube having an outer subunit surface and an inner subunit surface defining a central subunit bore, each of the at least one subunit also includes a stack of at least two optical fiber ribbons disposed in the central subunit bore of the foamed tube, each of the at least two optical fiber ribbons comprising at least two optical fibers, the stack occupies from 85%-95% of a cross-sectional area of the central subunit bore such that the central subunit bore provides from 5% to 15% of free space around the stack along at least a portion of a length of the foamed tube.
Terminals (200) are disclosed having at least one first connection port (236) intended for mating with a first connector footprint and at least one second connection port (260) intended for mating with a second connector footprint where the second connection port (260) inhibits the damaging insertion of the external connector suitable for the first connection port (236). For instance, terminals may have at least one single-fiber connection port (236) that can receive and optically mate with a single-fiber plug connector, and at least one multi-fiber optical connection port (260) that can receive and optically mate with a multi-fiber plug connector and inhibits the damaging insertion of the non-compatible single-fiber connector into the multi¬ fiber optical connection port (260) if mistakenly attempted by the technician. Other embodiments may include a modular adapter sub-assembly (310MSA, 310SSA) for the first connection port or the second connection port.
Disclosed herein are vehicle mounted grinding machines adaptable to ground contours. Embodiments relate to a grinding machine with a vehicle mount configured to attach a housing body, including a grinding drum to a vehicle. One embodiment of the disclosure relates a pair of guides on opposing sides of a blade set of a grinding drum, where each of the pair of guides is horizontally aligned with the grinding drum. In another embodiment, the housing body is configured to roll about a travel direction relative to the vehicle mount. In another embodiment, the grinding machine includes an alignment motor configured to laterally translate the housing body relative to the vehicle mount and perpendicular to a travel direction.
E01C 23/07 - Appareils combinant la mesure de la configuration superficielle du revêtement avec l'application de matériau proportionnellement aux irrégularités mesurées
E01C 23/08 - Dispositifs ou aménagements pour travailler la surface terminée; Dispositifs pour réparer la surface des revêtements endommagés pour égaliser en supprimant les parties saillantes ou pour retirer des matériaux liaisonnés sur la surface, p.ex. des marques
E01C 23/088 - Outils rotatifs, p.ex. tambours de fraisage
E01C 23/09 - Dispositifs ou aménagements pour travailler la surface terminée; Dispositifs pour réparer la surface des revêtements endommagés pour rogner les bords du revêtement
F16L 1/032 - Pose ou récupération des tuyaux sur ou dans la terre, p.ex. au-dessus du sol dans le sol les tuyaux étant continus
G01B 21/18 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la profondeur
A protective apparatus for telecommunications cables is provided including a mounting frame configured to be affixed to a wall and a protective skirt configured to be selectively engaged with the mounting frame to define an internal volume configured for routing of the telecommunications cables. The mounting frame or the protective skirt including a U- channel dispose at an edge and the other of the protective skirt and the mounting frame including a flange configured to be received in the U-channel. The protective skirt is engaged with the mounting frame when the flange is inserted into the U-channel and the protective skirt is disengaged from the mounting frame by flexion of the protective skirt causing the flange to withdraw from the U-channel.
Fiber optic connectors and cable assemblies comprising a retention body with a portion that fits a connector housing when assembled and is secured to the connector housing using one or more securing buttons are disclosed. The connector housing comprises at least one connector housing aperture and the retention body comprises at least one retention body securing portion for cooperating with the one or more securing buttons when aligned for assembly. The fiber optic connectors disclosed advantageously allow for the termination of a wide variety of fiber optic cables of various shapes and/or construction for different requirements of preferences. Methods for securing the fiber optic connector to a cable for forming a cable assembly are also disclosed.
Disclosed herein are preconnectorized cable assemblies and methods of making using a pull string. One embodiment of the disclosure relates to a method of manufacturing a distribution cable assembly using a pull string fed through a jacket of a distribution cable. Subunit cables are attached to the pull string through openings in the jacket of the distribution cable, and then pulled, via the pull string, through the jacket until drawn through a distribution end opening of the jacket. Another embodiment relates to a distribution cable assembly including junction shells covering side openings in the jacket. The junction shell includes a first half shell attached to a second half shell by a fastener. The first half shell includes stops proximate ends of a side opening to fix the junction shell along an axis of the jacket.
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G06F 30/18 - Conception de réseaux, p.ex. conception basée sur les aspects topologiques ou d’interconnexion des systèmes d’approvisionnement en eau, électricité ou gaz, de tuyauterie, de chauffage, ventilation et climatisation [CVC], ou de systèmes de câblage
The present disclosure relates to a process by which an optical fiber drop cable is created and routed in a multiple dwelling unit ("MDU"). The optical fiber drop cable is formed with a feeding tool, and the optical fiber drop cable includes a tube having optical fibers enclosed within the tube. The feeding tool creates a slit within the tube through which optical fibers are fed and thereby inserted into the tube along the tube's length. Once the tube exits the feeding tool with the optical fibers enclosed (thereby forming the optical fiber drop cable), the optical fiber drop cable is then routed into an individual dwelling unit of the MDU by a transition assembly including a transition plug and a routing plug that leads an optical fiber from an exterior of the individual dwelling unit to a subscriber termination point in an interior of the individual dwelling unit.
Devices such as terminals comprising connection ports with associated securing features and methods for making the same are disclosed. In one embodiment, the device comprises a shell, at least one connection port, and at least one securing feature. The at least one connection port is disposed on the terminal with the at least one connection port comprising an optical connector opening extending from an outer surface of the terminal to a cavity of the terminal and defining a connection port passageway. The securing feature is associated with the connection port passageway and is biased by a resilient member having a predetermined pre-load restoring force to the retain position.
An optical communication cable includes a jacket having an interior surface that defines a cable jacket internal cross-sectional area and a plurality of optical fibers, wherein less than 60% of the cable jacket internal cross-sectional area is occupied by the cross-sectional area of the plurality of optical fibers. A scaffolding structure is provided adjacent to and supporting the jacket such that when the jacket is subjected to a burn and melts, the melted jacket material bonds to the scaffolding structure rather than sloughing off.
A ribbon handler assembly holds an optical fiber ribbon during thermal stripping, cleaving and mass fusion splicing. The handler assembly includes a body defining a ribbon channel in an upper surface, an array section of fiber grooves extending longitudinally a predefined length from one end of the ribbon channel, wherein a nominal spacing of each individual groove of the array section of fiber grooves is greater than a nominal fiber spacing of fibers in an optical fiber ribbon configured to be placed into the ribbon channel.
A deflector may be configured to reduce entry of at least one of dust or fluid into an enclosure configured to enclose in an interior thereof a plurality of optical communication connections. The deflector may include a first leg defining a first intersection edge and a first remote edge. The first leg may define a first hole adjacent the first end of the first leg and a second hole adjacent the second end of the first leg. The deflector may also include a second leg defining a second intersection edge and a second remote edge. The first intersection edge and the second intersection edge may be coupled to one another to define a deflector angle. The first hole may be configured to receive a first mounting stud associated with the enclosure, and the second hole may be configured to receive a second mounting stud associated with the enclosure.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H02B 1/28 - Enveloppes; Leurs parties constitutives ou accessoires à cet effet étanches à la poussière, aux projections, aux éclaboussures, à l'eau ou aux flammes
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques - Détails
A cable strain relief for a fiber optic assembly is provided including a body defining a sidewall, a cable passthrough disposed in the body from a first end of the body to a second end of the body, and a cable slot disposed through sidewall enabling a fiber optic cable to be inserted into the cable passthrough. The cable strain relief also includes a plurality of hooks disposed on an exterior surface of the sidewall. The plurality of hooks are configured to resist movement of a strength member of the fiber optic cable, when the strength member is wrapped around the body.
A fiber optic assembly is provided including a cable port seal including a first sealing component, a first and second compression element configured to compress the first sealing component in a first direction, a second sealing component, and a cap configured to compress the first and second sealing component in a second direction. The compression in the first direction and second direction provides a seal around a cable. The fiber optic assembly also includes a strain relief including a body defining a sidewall, a passthrough disposed in the body from a first end to a second end, and a slot enabling a fiber optic cable to be inserted into the passthrough. The strain relief also includes a plurality of hooks disposed on an exterior surface of the sidewall and configured to resist movement of a strength member of the cable, when the strength member is wrapped around the body.
A comer bracket (14) may include first and second retainers (132,134) configured to receive respective ends of first and second frame members, such that the first and second frame members are substantially perpendicular with respect to one another. The first and second retainers (132,134) may include structural and sealing portions (102,104), wherein the structural portion (102) includes a first material and the sealing portion (104) includes a second material, with the first material being relatively more rigid than the second material, and the second material being relatively more elastic than the first material. The comer bracket (14) may also include first and second exterior surfaces (136,140) at least partially including the second material and first and second door panel interfaces (138,142) configured to provide a seal between the first and second exterior surfaces (136,140) and interior surfaces of first and second door panels in a closed position. The comer bracket (14) may be incorporated into a frame for a cabinet.
Devices such as multiports comprising connection ports with associated sliding actuators that engage securing members and methods for making the same are disclosed. In one embodiment, the device comprises a shell, at least one connection port, and at least one sliding actuator that engages with a complementary securing member. The at least one connection port is disposed on the multiport with the at least one connection port comprising an optical connector opening extending from an outer surface of the multiport to a cavity of the multiport and defining a connection port passageway. The at least one securing member is associated with the connection port passageway, and is capable of translating in a direction that is transverse to the longitudinal axis of the connection port passageway. T ranslating the sliding actuator in a longitudinal direction transverse to the translation direction of the securing member allows the release of an optical connector disposed in the connection port.
An enclosure configured to simultaneously accommodate different connectorization applications includes a backplate and a bulkhead bracket and splice retention clips coupled to the backplate. The bulkhead bracket includes openings configured to house adapters for a first connecterized application. The splice retention clips are configured to accomodate one or more of a fusion splice protector and a mechnical splice for a second connecterized application. The bulkhead bracket, with or without an adapter, is configured to be uncoupled from the backplate to allow access to the splice retention clips for insertion or deletion of the fusion splice protector or the mechnical splice. The bulkhead bracket is configured to be recoupled with the backplate and over the splice retention clips.
A fiber optic connector (10) comprises a connector body (14), a ferrule (16), and a boot (46). The ferrule (16) has a rear portion supported within the connector body and a front portion (50) extending beyond a front end of the connector body. The boot has a front portion (50) within the connector body and a funnel-shaped portion (52) that extends beyond a back end (48) of the connector body. The funnel-shaped portion (52) defines a boot back end. Additionally, the funnel-shaped portion (52) includes a tapered passage (86) on an interior of the boot and a lip (88) on an exterior of the boot. The tapered passage and the lip are curved toward each other proximate the boot back end (54) so that the funnel-shaped portion (52) terminates with a rounded configuration.
Embodiments of the disclosure relate to an optical fiber cable having at least one optical fiber, a cable jacket, and a foam layer. The cable jacket has an inner surface and an outer surface. The outer surface is an outermost surface of the optical fiber cable, and the inner surface is disposed around the at least one optical fiber. The foam layer is disposed between the at least one optical fiber and the cable jacket. The foam layer includes a polymer component having from 30% to 100% by weight of a polyolefin elastomer (POE) or thermoplastic elastomer (TPE) and from 0% to 70% by weight of low density polyethylene (LDPE). The foam layer has a closed-cell morphology having pores with an average effective circle diameter of 10 µm to 500 µm. Further, the expansion ratio of the foam layer is at least 50%.
A configurator design tool is provided to facilitate the manufacture of pre-configured multi-fiber optical cable and loaded optical fiber cable storage reels. The configurator design tool also facilitates the configuration of fiber-optic data centers or other types of fiber-optic infrastructure. The present disclosure also contemplates methodology for manufacturing pre¼ configured multi-fiber optical cable and loaded optical fiber cable storage reels, and for configuring fiber-optic data centers or other types of fiber-optic infrastructure. Additional embodiments relate to contemplated pre-configured multi-fiber optical cable loaded optical fiber cable storage reels, and to fiber-optic data centers or other types of fiber-optic infrastructures.
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G06F 30/18 - Conception de réseaux, p.ex. conception basée sur les aspects topologiques ou d’interconnexion des systèmes d’approvisionnement en eau, électricité ou gaz, de tuyauterie, de chauffage, ventilation et climatisation [CVC], ou de systèmes de câblage
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
An optical cable is provided. The optical cable includes an outer cable body jacket and a plurality of optical fiber subunits. The optical fibers within each subunit are stranded relative to each other and are located within a thin subunit jacket. A plurality of unstranded optical fiber subunits are located within the cable jacket.
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes optical fibers arranged in a row having a first width. Indicator fibers are provided at the edges of the row. The indicator fibers have different color fiber jackets. The optical fiber ribbon also includes a primary matrix into which the plurality of optical fibers is embedded. The optical fiber ribbon also includes an opacifying layer having a second width and a color layer, distinct from the opacifying layer, having a third width. The optical fiber ribbon further includes a layer of printing disposed on an outer surface of the primary matrix. In the optical fiber ribbon, the first width is greater than at least one of the second width or the third width such that the indicator fibers extend past at least one of the opacifying layer or the color layer.
Embodiments of the disclosure relate to a polymer composition. The polymer composition includes from 0% to 80% by weight of a polyolefin component and from 20% to 100% by weight of a thermoplastic elastomer component. The polymer composition has an elastic modulus of less than 1500 MPa at -40 ºC as measured using dynamic mechanical analysis according to ASTM D4065. Further, the polymer composition has a coefficient of thermal expansion as averaged over the temperature range of -40 ºC to 25 ºC of more than 120 x 10-6/K when measured according to ASTM E831, and the polymer composition has a thermal contraction stress of no more than 4.0 MPa at -40 ºC as measured using dynamic mechanical analysis. Additionally, embodiments of an optical fiber cable having a cable jacket made of the polymeric composition are disclosed herein.
Multiport assemblies comprising one or more optical ports for receiving an external optical fiber connector for making an optical connection along with useful mounting features for securing the multiport assembly are disclosed. The multiport assembly comprises a mounting member having an aperture and a standoff that is coupled to a shell. The standoff extends outward from a lower surface of the shell to allow easy mounting to irregular surfaces. In another embodiment, the multiport assembly may comprise a second mounting member with an aperture and standoff that is received in a rear shell aperture to inhibit damage to the multiport assembly if a fastener is over-tightened during mounting. In further embodiments, the multiport assembly may comprise a dust plug having a locking feature and a keying port that is received in an optical port for inhibiting dirt, dust or debris from entering when the optical port is not in use.
A fiber optic cable includes a stranded ribbon stack, a sheath extruded around the stranded ribbon stack to form a subunit, and an extruded foam layer, wherein the foam layer has a minimum inner diameter that is less than or equal to a maximum stack diagonal dimension of the stranded ribbon stack.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
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
H01B 7/00 - Conducteurs ou câbles isolés caractérisés par la forme
53.
MULTIPORTS AND OTHER DEVICES HAVING OPTICAL CONNECTION PORTS WITH ROTATING ACTUATORS AND METHODS OF MAKING THE SAME
Devices such as multiports comprising connection ports with associated rotating actuators that engage securing members and methods for making the same are disclosed. In one embodiment, the device comprises a shell, at least one connection port, and at least one rotating actuator that engages with a complimentary securing member. The at least one connection port is disposed on the multiport with the at least one connection port comprising an optical connector opening extending from an outer surface of the multiport to a cavity of the multiport and defining a connection port passageway. The at least one securing member is associated with the connection port passageway, and turning the rotating actuators allows the release of an optical connector disposed in the connection port.
A device for applying a distribution cabling tape system includes a distribution cabling tape having an adhesive capable of adhering to a concrete or asphalt substrate and a distribution cable. The device includes an endoscope camera, wherein movement of the device in one direction simultaneously applies both the distribution cable and the distribution cabling tape at a location on the substrate viewable by the endoscope camera. A method for registering a cable and a cabling tape into a channel in a concrete or asphalt substrate includes using an endoscope to view the location at which the cable and cabling tape are applied.
A multiport assembly includes a shell defining a cavity, a plurality of apertures extending through the shell to the cavity, and a plurality of optical connector ports defining connector insertion paths, a plurality of optical adapter assemblies positioned within the cavity of the shell, and a plurality of sealing piston securing members associated with respective ones of the connector insertion paths, where each of the sealing piston securing members is repositionable between an engaged position, in which at least a portion of the sealing piston securing member intersects the connector insertion path, and a disengaged position, in which a securing portion of the sealing piston securing member is spaced apart from the connector insertion path, and where a width of a button portion of each of the sealing piston securing members is greater than width defined by each of the plurality of apertures.
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having a first inner surface and a first outer surface. The first inner surface defines a central bore along a longitudinal axis of the optical fiber cable. The optical fiber cable also includes optical fibers disposed within the central bore and a buffer tube surrounding the optical fibers. The buffer tube has a second inner surface and a second outer surface. The optical fiber cable also includes an armor layer disposed between the first inner surface of the cable jacket and the second outer surface of the buffer tube and a water-blocking adhesive disposed between the armor layer and the first outer surface of the buffer tube. The water-blocking adhesive extends along the longitudinal axis of the optical fiber cable and around a circumference of the buffer tube.
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 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
A fiber optic parking device includes a support wall having front and rear sides, and also includes at least one mount extending outwardly from the rear side of the support wall and defining a first plane. The fiber optic parking device further includes a platform extending outwardly from the front side of the support wall and defining a second plane, the platform including a plurality of connector slips. Each of the connector slips extends along a corresponding axis parallel to the second plane and intersecting the first plane at an acute angle.
A multiport assembly includes a shell defining a cavity positioned within the shell, a plurality of optical adapter assemblies, a modular adapter support array engaged with the plurality of optical adapter assemblies and positioned within the cavity, the modular adapter support array defining a plurality of adapter passageways extending through the modular adapter support array in a longitudinal direction, where each adapter passageway of the plurality of adapter passageways extends around at least a portion of a corresponding optical adapter assembly of the plurality of optical adapter assemblies, and a plurality of optical connector defining respective connector insertion paths extending inward from the plurality of optical connector ports to the cavity.
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface in which the inner surface defines a central bore along a longitudinal axis of the optical fiber cable and the outer surface defines the outermost extent of the cable. The optical fiber cable also includes at least one access feature disposed in the cable jacket between the inner surface and the outer surface. Further included are a first plurality of optical fiber bundles. Each optical fiber bundle includes a second plurality of optical fiber ribbons that has a third plurality of optical fibers arranged in a planar configuration. The optical fiber cable bends uniformly in all directions transverse to the longitudinal axis of the optical fiber cable.
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 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
60.
OPTICAL CABLE ASSEMBLIES HAVING VARIABLE OUTPUT CURRENT LIMITS
Optical cable assemblies with variable output current limits are disclosed. In one embodiment, an active optical cable assembly includes a cable having at least one electrical conductor, a host connector coupled to a first end of the cable, and a device connector coupled to a second end of the cable. The host connector includes a host circuit that determines a current limit of one or more devices coupled to the active optical cable assembly and produces a transmitted voltage in accordance with the current limit on the at least one electrical conductor. The device connector includes a device circuit that detects the transmitted voltage on the at least one electrical conductor and limits a current configured to be provided to a device coupled to the device connector based on the transmitted voltage.
Embodiments of a bundled optical fiber cable are provided. Included therein is a central cable unit spanning a first length from a first end to a second end. The central cable unit has a first plurality of optical fibers disposed within a cable jacket. The bundled optical fiber cable also includes at least one optical fiber drop cable wound around the cable jacket of the central cable unit. Each optical fiber drop cable spans a second length from a first end to a second end. Further, each optical fiber drop cable includes one or more optical fibers disposed within a buffer tube. The first end of each optical fiber drop cable is substantially coterminal with the first end of the central cable unit, and the first length spanned by the central cable unit is longer than the second length spanned by each of the optical fiber drop cables.
G02B 6/036 - Fibres optiques avec revêtement le noyau ou le revêtement comprenant des couches multiples
G02B 6/04 - 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 formés par des faisceaux de fibres
H01B 11/22 - Câbles comprenant à la fois au moins un conducteur de l'électricité et des fibres optiques
62.
FIBER OPTIC CONNECTORS AND CONNECTORIZATION EMPLOYING ADHESIVE ADMITTING ADAPTERS
Fiber optic connectors, connector housings, connectorized cable assemblies, and methods for the connectorization of cable assemblies are provided with particular cable adapter features, adapter extensions, multi-diametrical sealing flexures, subcutaneous sealing elements, and combinations thereof, for improved connector and cable performance, integrity, and durability.
A seal may include a first seal section defining a first internal cylindrical surface defining a first internal diameter configured to provide a substantially fluid-resistant seal between the first internal cylindrical surface and an external surface of a cable. The seal may also include a second seal section coupled to the first seal section and defining a second internal cylindrical surface defining a second internal diameter configured to provide a substantially fluid-resistant seal between the second internal cylindrical surface and an external surface of a cable, wherein the first internal diameter and the second internal diameter may differ from one another. An entry module assembly for facilitating entry of one or more cables into an enclosure may include an entry module plate defining an aperture configured to receive a cable therethrough, and a seal coupled to the entry module plate and extending through the aperture of the entry module plate.
A corner bracket may include a structural portion including at least one relatively rigid first material, and a sealing portion including at least one relatively elastic second material. The corner bracket may also include a first receiver including a first retainer portion configured to be coupled to an end of a first frame member, and a first sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the first frame member and the first receiver. The corner bracket may also include a second receiver transverse to the first receiver and including a second retainer portion configured to be coupled to an end of a second frame member, and a second sealing interface configured to provide a substantially fluid resistant seal between a portion of the end of the second frame member and the second receiver. The corner bracket may be incorporated into a cabinet frame.
H02B 1/28 - Enveloppes; Leurs parties constitutives ou accessoires à cet effet étanches à la poussière, aux projections, aux éclaboussures, à l'eau ou aux flammes
H02B 1/30 - Enveloppes; Leurs parties constitutives ou accessoires à cet effet - Parties constitutives ou accessoires
H04Q 1/02 - SÉLECTION - Détails d'appareils ou dispositions de sélection - Détails de structure
A bracket may include a structural portion including at least one relatively rigid first material, and a sealing portion including at least one relatively elastic second material. The bracket may also include a first receiver including a first retainer portion configured to be coupled to an end of a first frame member, and a first sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the first frame member and the first receiver. The corner bracket may also include a second receiver substantially parallel to the first receiver and including a second retainer portion configured to be coupled to an end of a second frame member, and a second sealing interface configured to provide a substantially fluid resistant seal between a portion of the end of the second frame member and the second receiver. The bracket may be incorporated into a cabinet frame.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H02B 1/28 - Enveloppes; Leurs parties constitutives ou accessoires à cet effet étanches à la poussière, aux projections, aux éclaboussures, à l'eau ou aux flammes
H02B 1/30 - Enveloppes; Leurs parties constitutives ou accessoires à cet effet - Parties constitutives ou accessoires
H04Q 1/02 - SÉLECTION - Détails d'appareils ou dispositions de sélection - Détails de structure
An entry module for facilitating passage of one or more cables into an enclosure may include first and second module plates. The first module plate may include a first edge defining a first edge profile, and the second module plate may include a second edge defining a second edge profile. The first and second module plates may be configured to approach one another, such that the first edge profile and the second edge profile define one or more apertures for receiving a cable passing from exterior the enclosure to the interior of the enclosure. The first edge profile may define first aperture portions and first edge segments between at least some of the first aperture portions, and the second edge profile may define second aperture portions and second edge segments between at least some of the second aperture portions. The first and second aperture portions may define the apertures.
Fiber optic connectors, connector housings, connectorized cable assemblies, and methods for the connectorization of cable assemblies are provided with particular cable adapter features, adapter extensions, multi-diametrical sealing flexures, subcutaneous sealing elements, and combinations thereof, for improved connector and cable performance, integrity, and durability.
A bracket for coupling at least three frame members to one another may include a structural portion including at least one relatively rigid first material, and a sealing portion including at least one second material different than the at least one first material. The bracket may also include first, second, and third receivers, each including a retainer portion configured to be coupled to an end of a respective frame member, and a sealing interface configured to provide a substantially dirt-resistant and fluid-resistant seal between a portion of the end of the respective frame member and the respective receiver. The bracket and frame members may form a joint configured to be incorporated into a frame for forming a cabinet.
F16B 7/18 - Assemblages de barres ou assemblages de tubes, p.ex. de section non circulaire, y compris les assemblages élastiques utilisant des éléments filetés
F16B 12/44 - Joints pour pieds de meubles; Joints d'angle
69.
FIBER ARRAY ASSEMBLIES FOR MULTIFIBER CONNECTORIZED RIBBON CABLES AND METHODS OF FORMING SAME
The fiber array assemblies include an interdigitated signal-fiber array (80) supported on a support substrate (20) and formed by front-end sections (54A) of first signal fibers (52A) interdigitated with either front-end sections (54B) of second signal fibers (52B) or spacer fibers. The assemblies also include a fiber pusher device (90) that may comprise glass and first and second ends (104A, 104B). The fiber pusher device (90) is disposed so that its first and second ends (104A, 104B) contact and push against first and second edges (86A, 86B) of the interdigitated signal-fiber array (80) to remove gaps between adjacent signal fibers. A cover sheet (120) is disposed atop the interdigitated signal-fiber array (80) and covers at least a portion of the fiber pusher device (90) to define a ferrule. A securing material (135) is disposed within a ferrule interior to secure the cover sheet (120), the interdigitated signal-fiber array (80) and the fiber pusher devices (90). The fiber array assemblies can be connectorized by adding an interconnect device or the like.
A distribution cabling tape system comprises a resilient polymeric base sheet having a first major surface and a second major surface, the first major surface being substantially continuous across a side to side width, an adhesive layer disposed on the first major surface, the adhesive layer capable of adhering to a concrete or asphalt surface, and first and second spacer layers arranged in a spaced apart configuration on the adhesive layer to form a continuous lengthwise channel configured to receive at least a portion of at least one distribution cable, each of the first and second spacer layers comprising a second adhesive layer disposed thereon, the second adhesive capable of adhering to a concrete or asphalt surface.
H02G 1/06 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour poser les câbles, p.ex. appareils de pose sur véhicule
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p.ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
H01B 11/00 - Câbles ou conducteurs de communication
H02G 3/04 - Tubes ou conduits de protection, p.ex. échelles à câbles ou goulottes de câblage
71.
FIBER OPTIC CONNECTORS AND CONNECTORIZED CABLE ASSEMBLY WITH COLLAPSING CANTILEVERED GASKET
A fiber optic connector (100) that includes a connector body (110) comprising a ferrule retaining portion (112), a pusher engagement portion (114) and a body cable passage extending through the pusher engagement portion (114) and the ferrule retaining portion (112). The connector (100) includes a ferrule assembly (120) structurally configured to be retained by the ferrule retaining portion (114) with an optical fiber bore (122) of the ferrule assembly (120) in alignment with the body cable passage. The connector (100) includes a pusher (130) structurally configured to axially engage the pusher engagement portion (114) with a pusher cable passage in alignment with the body cable passage, and a collapsing cantilevered gasket (140) structurally configured to form an axially compressed sealing interface between the connector body (110) and the pusher (130) and an omnidirectionally compressed sealing interface between the gasket (140) and a cable (10) passing through a cable passage (142) of the gasket.
An optical fiber cable includes a jacket and a plurality of stranded core subunits, each core subunit comprising a flexible sheath and a plurality of ribbons arranged in a ribbon group, wherein each ribbon of the plurality of ribbons comprises a plurality of connected fibers such that 50-70% of the cross-sectional area inside the sheath is occupied by the connected fibers. The flexible sheath may be an extruded PVC material that conforms to the shape of the ribbon stack and keeps all of the ribbons acting as a unitary body during bending.
Fiber optic connectors and connectorized fiber optic cables include connector housings having locking portions defined on the connector housing that allow the connector housing to be selectively coupled to a corresponding push-button securing member of a multiport assembly. Methods for selectively connecting a fiber optic connector to, and disconnecting the fiber optic connector from the multiport assemblies allow for connector housings to be forcibly and nondestructively removed from the multiport assembly.
Fiber optic connectors and connectorized fiber optic cables include connector housings having locking portions defined on the connector housing that allow the connector housing to be selectively coupled to a corresponding push-button securing member of a multiport assembly. Methods for selectively connecting a fiber optic connector to, and disconnecting the fiber optic connector from the multiport assemblies allow for connector housings to be forcibly and nondestructively removed from the multiport assembly.
Fiber optic connectors (10), cable assemblies (100) and methods for making the same are disclosed. In one embodiment, the fiber optic connector (10) comprises a ferrule assembly (52), a housing (20) and a cap (60). The housing (20) comprises a longitudinal passageway (22) between a rear end (21) and a front end (23), and a ferrule assembly side-loading pocket (40) for receiving the ferrule assembly (52). The ferrule assembly (52) and housing (20) cooperate to inhibit movement of the assembly during manufacturing. Fiber optic connector 10 may include other features as desired such as keying portion (20KP) or at least one locking feature (20L) integrally formed in the housing (20).
Fiber optic connectors comprising compact footprints along with cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end. The optical connectors disclosed may be tunable for improving optical performance and may include a spring for biasing the ferrule to a forward position as desired.
Fiber optic coimectors, cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end, and, a part of the rear portion of the housing comprises a round cross-section and a part of the front portion of the housing comprises a non-round cross-section with a transition region disposed between the rear portion and the front portion.
Embodiments of a furcated optical fiber cable are provided. A main distribution cable has optical fibers surrounded by a cable jacket. The optical fibers are divided into at least two furcation legs. A furcation plug is located at a transition point between the main distribution cable and the at least two furcation legs. The furcation plug surrounds at least a portion of the main distribution cable and each of the at least two furcation legs. Optical connectors are provided for each of the at least two furcation legs, and each connector includes optical fibers that are spliced at a splice location to the optical fibers of the connector's respective furcation leg. The splice location is closer to the connector than to the furcation plug. A method of furcating an optical fiber cable and a pulling configuration for the furcated optical fiber cable are also provided.
Fiber optic connectors, cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end, and, a part of the rear portion of the housing comprises a round cross-section and a part of the front portion of the housing comprises a non-round cross-section with a transition region disposed between the rear portion and the front portion.
Fiber optic connectors, cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a multifiber ferrule. The housing comprises a longitudinal passageway between a rear end and a front end, and a rear portion of the housing comprises a keying portion and at least one locking feature integrally formed in the rear portion of the housing.
Fiber optic connectors and connectorized fiber optic cables include connector housings having locking portions defined on the connector housing that allow the connector housing to be selectively coupled to a corresponding push-button securing member of a multiport assembly. Methods for selectively connecting a fiber optic connector to, and disconnecting the fiber optic connector from the multiport assemblies allow for connector housings to be forcibly and nondestructively removed from the multiport assembly.
Fiber optic connectors and connectorized fiber optic cables include connector housings having locking portions defined on the connector housing that allow the connector housing to be selectively coupled to a corresponding push-button securing member of a multiport assembly. Methods for selectively connecting a fiber optic connector to, and disconnecting the fiber optic connector from the multiport assemblies allow for connector housings to be forcibly and nondestructively removed from the multiport assembly.
Extender ports comprising one or more connection ports with associated securing features and methods for making the same are disclosed. In one embodiment, the device comprises a shell, a first and second connection port, at least one securing feature passageway, and at least one securing feature. The first and second connection ports are disposed on the extender port and aligned for making an optical connection between external fiber optic connectors inserted into respective connection ports. The securing features are associated with the connection port passageway, and are suitable for retaining and releasing the external fiber optic connectors.
Devices such as multiports comprising connection ports with associated securing features and methods for making the same are disclosed. In one embodiment, the device comprises a shell, at least one connection port, and at least one securing feature. The at least one connection port is disposed on the multiport with the at least one connection port comprising an optical connector opening extending from an outer surface of the multiport to a cavity of the multiport and defining a connection port passageway. The at least one securing feature is associated with the connection port passageway, and is biased by a resilient member.
Devices such as port module inserts comprising connection ports with associated securing features and methods for making the same are disclosed. In one embodiment, the port module insert comprises a housing, at least one connection port, at least one securing feature passageway, and at least one securing feature. The at least one connection port is disposed on the port module insert with the at least one connection port comprising an optical connector opening extending from an outer surface of the port module insert to a cavity of the port module insert and defining a connection port passageway. The at least one securing feature is associated with the connection port passageway, and the at least one securing feature is disposed within a portion of the at least one securing feature passageway.
Devices having at least one connector port associated with a rotating securing features are disclosed. A device for making optical connections comprising a shell, at least one connection port, and at least one rotating securing feature is disclosed. In one embodiment, the at least one connection port is disposed on a device with at the least one connection port comprising an optical connector opening extending from an outer surface of the device into a cavity of the device and defining a connection port passageway. The at least one rotating securing feature is associated with the connection port passageway, and the at least one rotating securing feature is secured to the device along a rotational axis that is not aligned with a longitudinal axis of the at least one connection port.
Devices such as multiports comprising connection ports with associated securing features and methods for making the same are disclosed. In one embodiment, the device comprises a shell, at least one connection port, at least one securing feature passageway, and at least one securing feature. The at least one connection port is disposed on the multiport with the at least one connection port comprising an optical connector opening extending from an outer surface of the multiport to a cavity of the multiport and defining a connection port passageway. The connection port passageway defines a keying portion. The at least one securing feature is associated with the connection port passageway, and the at least one securing feature is disposed within a portion of the at least one securing feature passageway.
Fiber optic connectors comprising multiple footprints along with cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end. The fiber optic connector may be converted from a first footprint to a second footprint by a conversion housing that fits about a portion of the housing. The optical connectors disclosed may be tunable for improving optical performance and may also include a spring for biasing the ferrule to a forward position as desired.
Fiber optic connectors, cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end. The optical connectors disclosed may be tunable for improving optical performance and may also include a spring for biasing the ferrule to a forward position as desired.
Fiber optic connectors, cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a multifiber ferrule. The housing comprises a longitudinal passageway between a rear end and a front end, and, a part of the rear portion of the housing comprises a round cross-section and a part of the front portion of the housing comprises a non-round cross-section.
Fiber optic connectors comprising multiple footprints along with cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end. The fiber optic connector may be converted from a first footprint to a second footprint by a conversion housing that fits about a portion of the housing. The optical connectors disclosed may be tunable for improving optical performance and may also include a spring for biasing the ferrule to a forward position as desired.
Devices such as multiports comprising connection ports with associated securing features and methods for making the same are disclosed. In one embodiment, the device comprises a shell, at least one connection port, at least one securing feature passageway, and at least one securing feature. The at least one connection port is disposed on the multiport with the at least one connection port comprising an optical connector opening extending from an outer surface of the multiport to a cavity of the multiport and defining a connection port passageway. The at least one securing feature is associated with the connection port passageway, and the at least one securing feature is disposed within a portion of the at least one securing feature passageway.
Embodiments of an optical fiber cable configured for installation in a roadbed are provided. The optical fiber cable includes an optical fiber, a cable jacket surrounding the optical fiber, and an upjacket surrounding the cable jacket. The upjacket does not leach a chemical or chemicals into the roadbed that soften the roadbed. Also provided are embodiments of a method of producing an optical fiber cable configured for installation in a roadbed. Further, embodiments of a method of deploying an optical fiber cable into a roadbed are provided. The method involves the steps of forming a channel in the roadbed, inserting an optical fiber cable into the channel, and closing the channel so as to bury the optical fiber cable in the roadbed.
A pre-mounted fiber optic distribution cabinet assembly is disclosed. The pre-mounted fiber optic distribution cabinet assembly includes a fiber optic distribution cabinet with an enclosure having an interior configured to house fiber optic components. The fiber optic distribution cabinet is sealed to protect against the ingress of solid foreign objects and liquids into the interior. A frame attaches to the exterior of the enclosure so that the fiber optic distribution cabinet is mounted in the frame when shipped to an installation location. The fiber optic distribution cabinet is configured to be mounted at the installation location via the frame. A stabilizer attached to the fiber optic distribution cabinet provides balancing support to the fiber optic distribution cabinet to maintain the fiber optic distribution cabinet in a generally upright orientation with the frame attached to the fiber optic distribution cabinet.
A fiber optic cable includes a cable jacket having an inner surface that defines a core, and an optical transmission core element provided in the core that includes an optical fiber group of optical fiber ribbons located within a buffer tube, wherein the optical fiber group comprises a plurality of optical fiber subgroups, each subgroup having one or more sets of 6 fiber base ribbon subunits arranged in substantially planar fashion, each 6 fiber base ribbon subunit comprising six 200µ?? optical fibers in a cured ribbon matrix.
A mid-span optical fiber cable support system is provided. The system includes a mid-span clamp system engaging a main span cable to support a mid-span later drop cable run. The mid-span clamping system includes a main span cable clamp engaging the main span cable, and a drop cable clamp engaging the drop cable. The drop cable clamp is supported from the main span cable such that the second portion of the drop cable extends away from the main span cable such that a load applied by the drop cable at the drop cable clamp is substantially perpendicular to the preferential bend axis of the main span cable. In addition, the main span cable clamp includes a bend strain reducing curved surface.
A modular fiber frame is disclosed that comprises a generally rectangular frame body, a high density connection module attached to a front side of the frame body, a splitter bracket to hold a plurality of optical splitter modules on the front side of the frame body. All of the splitter connections can be made on the front side of the modular fiber frame, and a preterminated cable harness optically connected to connection ports on a back of the connection module, wherein the connection module includes a protective cover over said connection ports. In some embodiments, the exemplary modular fiber frame can utilize a second preterminated cable harness optically connected to a back of the connection module.
A distribution cabling tape comprises a resilient polymeric base sheet having a first major surface and a second major surface, the first major surface having a continuous lengthwise channel formed in a first portion thereof. The tape also includes an adhesive layer disposed on a second and third portion of the first major surface, the adhesive layer capable of adhering to a concrete or asphalt surface, such as a road, curb, or walkway.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H02G 3/00 - Installations de câbles ou de lignes électriques ou de leurs tubes de protection dans ou sur des immeubles, des structures équivalentes ou des véhicules
H02G 3/30 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds
99.
CABLE ASSEMBLY WITH A REMOVABLE INSTALLATION DEVICE
A cable assembly is described that includes a preterminated optical fiber drop cable having a connector body mounted on a terminal end thereof, and a removable installation device attached to a jacket of the preterminated optical fiber drop cable by an attachment portion, wherein the attachment portion includes a pair of tear tabs that provides tool-less removal of the installation device from the preterminated optical fiber drop cable.
A ruggedized cable connection structure configured to direct mate first and second ruggedized optical fiber connectors is disclosed. The connection assembly has a housing having a channel extending from a first end of the housing through to the second end of the housing, an adapter secured within the channel near a midpoint of the housing to enable direct mating of the first and second ruggedized optical fiber connectors, and an integral mounting flange extending from the housing to allow connection to a mounting surface.
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