Systems and Methods for CATV network interface units with plug-in modular bandplan selectivity are disclosed. In one embodiment, a network interface device comprises: a plug-in diplex module comprising an enclosure including high and low pass filters and a first set of plug connectors providing an external interface to the filters; and a network interface unit comprising a network connector to receive signals from and send signals to a CATV headend, a second set of plug connectors compatible to mate with the first set, wherein the network connector is electrically coupled to the filters via the first and second sets of plug connectors, and a cable modem port configured to output downstream RF signals to a cable modem and to receive upstream RF signals from the cable modem, wherein the cable modem port is electrically coupled to the high and low pass filters via the sets of plug connectors.
One exemplary embodiment is directed to a network interface unit (NIU) comprising a network connector configured to receive signals from and send signals to a CATV headend. The NIU further comprises a first diplexer comprising a first high pass filter configured for a first downstream radio frequency (RF) band and a first low pass filter configured for a corresponding first upstream RF band. The NIU further comprises a second diplexer comprising a second high pass filter configured for a second downstream RF band and a second low pass filter configured for a corresponding second upstream RF band. The NIU further comprises a cable modem port configured to output downstream RF signals to a cable modem and to receive upstream signals from the cable modem. The NIU further comprises a coupling device configured to couple at least one of the first diplexer or the second diplexer to the cable modem port. The NIU further comprises a switch configured to couple the network connector to one of the first diplexer and the second diplexer. The NIU further comprises a detection circuit coupled to the network connector and the switch, the detection circuit configured to detect when a trigger signal is present in a frequency range of the first downstream RF band that coincides with a frequency range between the second downstream RF band and the second upstream RF band. If a trigger signal is not detected in a frequency range of the first downstream RF band that coincides with a frequency range between the second downstream RF band and the second upstream RF band, the detection circuit causes the switch to couple the network connector to the second diplexer. Other embodiments are disclosed.
One exemplary embodiment is directed to a network interface unit (NIU) that comprises a network connector configured to receive signals from and send signals to a cable television (CATV) headend. The NIU further comprises a first diplexer comprising a first high pass filter configured for a first downstream radio frequency (RF) band and a first low pass filter configured for a corresponding first upstream RF band. The NIU further comprises a second diplexer comprising a second high pass filter configured for a second downstream RF band and a second low pass filter configured for a corresponding second upstream RF band. The NIU further comprises a cable modem port configured to output downstream RF signals to a cable modem and to receive upstream signals from the cable modem. The NR7 further comprises a coupling device configured to couple at least one of the first diplexer or the second diplexer to the cable modem port. The NIU further comprises a switch configured to switch between a first state and a second state, the first state coupling the network connector to the first diplexer and the second state coupling the network connector to the second diplexer. The NIU further comprises a control circuit coupled to the network connector and the switch, the control circuit configured to detect when a broadband trigger signal is present at a predetermined frequency spectrum within the first downstream RF band. When the broadband trigger signal is not detected, the detection circuit causes the switch to switch from the first state to the second state. Other embodiments are disclosed.
Network interface units with selectable upstream and downstream frequency bands are provided. In one embodiment, a network interface unit comprises: at least one network connector configured to receive signals from and send signals to a CATV headend; a first diplexer comprising first high and low pass filters configured for a first RF band; a second diplexer comprising second high and low pass filters configured for a second RF band; a third diplexer comprising third high and low pass filters; a port configured to output downstream RF signals received from the a third high pass filter to a modem and upstream RF signals received from the modem to the third low pass filter; and a coupling device configured to couple the first or second high pass filter to the third high pass filter, and couple the third low pass filter to one of the first or second low pass filters.
A fiber optic adapter assembly is provided with a floating adapter module. The adapter assembly includes a housing, an adapter module, and a single biasing member disposed in the housing and concentrically aligned with the adapter module. The single biasing member can bias the adapter module in a direction toward an end of the housing and be compressible in the opposite direction toward the other end of the housing.
A hinge mechanism (10) for pivotally coupling a door (12) to a telecommunications chassis (14) includes an outer hinge arm (46) configured to be pivotally attached with respect to the chassis (14) and an inner hinge arm (48) configured to be pivotally attached with respect to both the outer hinge arm (46) and the door (12) of the chassis (14). The hinge mechanism (10) is configured such that when the door (12) is fully closed, the outer and inner hinge arms (46, 48) are generally vertically overlapped, and when the door (12) is fully open, the outer and inner hinge arms (46, 48) are generally at a perpendicular angle with respect to each other.
A method of limiting removal of a telecommunications chassis from a telecommunications fixture after mounting to the chassis via a mechanism (500) comprising a bracket (502) defining a rear portion (518) for mounting to the fixture and a front portion (514) for slidably receiving the chassis, the front portion (514) including a latch opening (512), a locking spring (504) mounted to the telecommunications chassis, the locking spring (504) defining a portion (524) that flexes laterally to snap in to the latch opening (512), a release handle (506) configured to be slidably mounted to the chassis, the release handle (506) defining a deflection tab (536) for moving the locking spring (504) out of the latch opening (512) when pulled along a rearward to forward direction, and a cover (508) configured to be mounted to the chassis, the cover (508) defining a deflection ramp (522) to interact with the deflection tab (536) for moving the deflection tab (536) laterally to contact the locking spring (504) when the release handle (506) is slid, the method comprising providing an anti-theft structure (535/550/552/554) on the chassis that is configured to prevent sliding of the release handle (506) along the rearward to forward direction.
A telecommunications modular mounting system (10/100/300/400) includes a frame (16/116/316) configured to be mounted to a telecommunications rack and at least one holder (14/114/214/314/414) configured to be mounted to the frame (16/116/316). The holder (14/114/214/314/414) is configured to receive a fiber optic device (12) in the form of a fiber optic splitter, wherein the at least one holder (14/114/214/314/414) includes an attachment structure (44/144) for receiving the fiber optic device (12). The attachment structure (44/144/244) defines at least a part of a slide lock (64/164) for slidably receiving the fiber optic device (12), the slide lock (64/164) defined at least in part by dovetail structures (66, 68/168) formed by the fiber optic device (12) and the attachment structure (44/144/244) of the holder (14/114/214/314/414). The at least one holder (14/114/214/314/414) is removably mounted to the frame (16/116/316).
A modular connection system (10/110) for connecting two pieces of telecommunications equipment (12/112) to prevent relative sliding therebetween and relative separation therebetween in a direction generally perpendicular to the direction of the relative sliding includes an interface structure (18) to be positioned between the two pieces of telecommunications equipment (12/112). The interface structure (18) defines a body (53) with opposed faces (54, 56) and a stud (38) on each face (54/56), the stud (38) defining a stem portion (58) and a flange portion (60) having a larger profile than the stem portion (58). The studs (38) on the opposed faces (54, 56) of the interface structure (18) are inserted into slots (32) of the two pieces of telecommunications equipment (12/112) to be connected and abutted by flexible cantilevers (40, 48/148) of the equipment (12/112) to prevent relative sliding between the equipment (12/112).
A fiber optic connection system includes a fiber optic connector (102) and an adapter assembly (104). The fiber optic connector is coupled to the adapter assembly with a fast coupling mechanism. The fast coupling mechanism allows the fiber optic connector to be mounted into the adapter assembly with rotation of the fiber optic connector relative to the adapter assembly less than a full turn.
A cable distribution system is provided wherein a feeder cable (20) with one or more feeder fibers is received by a distribution device or box. The feeder fibers are terminated to a fiber optic connector. Customers can directly connect to the connectors of the feeder cable through an adapter and a mating connector for a point-to-point connection. Alternatively, a splitter (142) input can be connected to one or more of the connectors of the feeder cable, such as through a pigtail extending from the splitter, wherein the splitter splits the signal as desired into a plurality of outputs. The outputs of the splitters can be in the form of connectors or adapters. Customers can connect to the splitter outputs through a mating connector (and an adapter if needed).
The present disclosure is directed to a cable patch panel (100) with a movable retaining member (104) for increasing accessibility to the panel during cable installation or maintenance. The patch panel (100) includes a retaining member (104) and a supporting member(106). The retaining member (104) holds at least one connector adapter (80). The supporting member (106) supports the retaining member (104) and moves the retaining member (104) between a locking position and a maintenance position. The supporting member (106) may hold the retaining member (104) at a locking angle in the locking position and at a maintenance angle in the maintenance position.
A fiber optic enclosure system (100) includes an enclosure (102), a plurality of fiber optic adaptors (132), and a drawer (130). The enclosure (102) defines an enclosure chamber (108). The plurality of fiber optic adaptors (132) is arranged on the enclosure (102). The drawer (130) is used to route an optical fiber main cable (90) within the drawer (130). The drawer (130) is removably inserted into the enclosure chamber (108).
An optical splitter module (140) can be carried on a cover (120) of an enclosure (100) between a contoured surface (129) and a row of optical adapters (130). Output pigtails (165) from the splitter module (140) are routed to the optical adapters (130). In certain examples, a significantly longer input fiber (161) is routed from the splitter module (140) to a splice region (114) at a base (110) of the enclosure(100). Certain types of splitter modules (140) are mounted to the cover (120) at an angle relative to an insertion axis for a feeder cable (170). A certain type of splitter module (140) curves about a minor axis (A2) so that one major surface (142) has a concave curvature and another major surface (143) has a convex curvature.
A telecommunications cable fixation and sealing system (14) includes a telecommunications cable (18) including a jacket defining a jacket perimeter having a generally non-circular transverse cross-section and an adapter tube (26) slidably placed over the jacket of the telecommunications cable (18), the adapter tube (26) defining a tube perimeter (28) having a generally circular transverse cross-section and defining a throughhole (30) having a generally non-circular transverse cross-section that is configured to receive the telecommunications cable (18).
The present disclosure relates to a fiber optic connection system (810) that uses a slide clip to provide robust retention of a fiber optic connector (820) within a mating fiber optic adapter (836). In certain examples, the fiber optic connector may be a hybrid connector that provides both electrical and optical connectivity.
A seal (500) is adapted for use with telecommunications enclosures (100). The seal (500) provides a pressure relief function to relieve excess pressure from an interior (140) of the enclosure (100). In certain embodiments, the seal (500) may reduce fatigue stress and thereby reduce or eliminate fatigue failure in the telecommunications enclosure (100) by relieving pressure within the interior (140) of the enclosure (100).
A fiber optic network (10) includes a mobile switching center (MSC) (12) which distributes fiber optic signals to one or more remote cabinets (40, 42, 44). The remote cabinets (40, 42, 44) distribute signals to one or more customers. The cabinets (40, 42, 44) receive service from the MSC (12) or from a temporary service provider, such as a vehicle (500), in the event of a catastrophic failure of the MSC (12).The cabinets (40, 42, 44) include equipment which allows patching to a temporary service provider through a patch panel (200), and sub-racks (154, 156, 158) and supporting cabling (134, 136) to provide service to each of the cabinets in the network.
Methods and compositions are provided for preparation of thermoplastic gels. The compositions have a base composition including a thermoplastic gel and a softener oil and the gel has a hardness between 15 Shore 000 and 65 Shore 000. The gel may also include an additive, such as a mineral filler, an anti-tack agent, and a mixture of a mineral filler and an anti-tack agent. The softener oil may be a high molecular weight oil having a molecular weight greater than about 250 g/mol.
C08J 9/32 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
A cable sealing unit has an actuator that is sealed to inhibit the intrusion of debris from compromising the working components of the actuator. A sealant can be pressurized using an actuator that includes a handle threaded over a shaft to compress a spring. A sealing arrangement is disposed at the actuator to prevent a particulate contaminant, such as sand, from damaging the threads of the actuator. The sealing arrangement also can prevent the spring from being exposed to particulate contaminants. The sealing arrangement can include one or more sealing members disposed on the handle and/or the shaft.
A cable fixation device (100, 200, 300, 400) includes a base (102, 202) with fastener holes (104), an upright (110, 208) projecting from the base and including a fixation projection (126, 212, 316, 318) having a reduced dimensional portion (128, 214, 324) for receiving a cable tie (152, 222, 326). Protrusions (130, 218, 320) are provided for engaging the cable jacket. Variations on the cable fixation device include a fixation element (130, 218, 320) which can slide and/or rotate about a vertical rod; a plate element (304) which includes a plurality of fixation projections extending between two rods; and a plurality of uprights (208) integrally formed with the base and including forwardly and rearwardly projecting projections. The base (102, 202) and the fixation projections (126, 212, 316, 318) can be made from molded plastic.
A tool for preparing the end of a fiber optic cable for termination to a fiber optic connector can include a hand-held tool capable of scoring the jacket of the cable and cutting the cable. The scoring and cutting operations can be performed in one action or motion. The scoring and cutting locations can be spaced by a predetermined distance to bare a predetermined length of optical fiber. The tool may include a staging area for holding a heat-shrink sleeve, clamp, and boot in alignment while the cable is being processed. The tool also may include a cutting component for cutting strength members of the cable; and a clamp docking station to align the cable with the cutting component.
A fiber termination point arrangement (100) including an enclosure (110) and a storage member (130). The enclosure (110) holds at least one optical adapter having an external port. The storage member (130) includes a rearwardly facing cable spool (135). The fiber termination point arrangement (100) mounts over a wall outlet so that the cable spool (135) is hidden from view. The fiber termination point arrangement (100) has a rear input port that enables a cable or fiber to enter the fiber termination point arrangement (100) from the rear (e.g., at the cable spool) without extending beyond the boundaries of the fiber termination point arrangement (100) when routed from the wall outlet.
A re-entrant enclosure for use in a passive fiber optic network comprises a plurality of single line converter modules; and a housing configured to enclose the plurality of single line converter modules. Each of the single line converter modules comprises a fiber optic connector configured to be optically coupled to a service terminal via a respective optical fiber for receiving downstream optical frames; a single electrical connector coupled over a respective metallic medium to a respective network terminal providing a service to respective customer premise equipment (CPE); and an optical-to-electrical (O/E) converter located in the housing and configured to convert the downstream optical frames to an electrical signal for transmission over the respective metallic medium to the respective network terminal. The housing of the re-entrant enclosure further comprises a seal around each of the plurality of optical fibers coupled to a respective one of the plurality of single line converter modules.
A fiber optic adapter (736/836) includes a body configured to mate a first fiber optic connector (12) with a second fiber optic connector (50), the first and second fiber optic connectors (12,50) including latches (60) for mating with catches (771) of the adapter (736/836) for releasably engaging the first and second connectors (12,50) with the fiber optic adapter (736/836), wherein the latches (60) are configured to be unlatched from the catches (771) by direct contact with the latches (60). The adapter (736/836) includes a release mechanism (702/802) for allowing a user to release the latch (60) of at least one of the first and second fiber optic connectors (12,50) from the adapter (736/836) without directly contacting the latch (60) of the at least one of the first and second fiber optic connectors (12,50).
A fiber optic connector (20) including a ferrule (42) having a front end (48) and a rear end (50). The ferrule (42) defines an axial bore (46) that extends through the ferrule (42) between the front end (48) and the rear end (50). The ferrule (42) includes a ferrule axis (64) that extends along the axial bore (46). The fiber optic connector (20) includes an optical fiber (62) positioned within the axial bore (46) that is movable relative to the ferrule (42) within the axial bore (46) along the ferrule axis (64). The optical fiber (62) has fiber end face (63) that has been energy treated to round the fiber end face (63). A fiber alignment structure (66) can be attached at a front ferrule end face (54) of the ferrule (42). A camera can be used to position a fiber end face (63) of the optical fiber (62) relative to the front ferrule end face (54) of the ferrule (42).
A mounting system (700/900) for locking two pieces of telecommunications equipment (610/810) to prevent relative sliding therebetween and relative separation therebetween in a direction generally perpendicular to the direction of the relative sliding includes a first locking feature (701/901) defined by a stud (702/902) with a stem portion (708/908) and a flange portion (710/910) having a larger profile than the stem portion (708/908) and a second locking feature (703/903) defined by a slot (704/904) with a receiver portion (712/912) and a retention portion (714/914). The receiver portion (712/912) is sized to accommodate the flange portion (710/910) of the stud (702/902) and the retention portion (714/914) is sized to accommodate the stem portion (708/908) but not the flange portion (710/910) of the stud (702/902). A third locking feature (705/905) prevents relative sliding between the two pieces of telecommunications equipment (610/810) once the stud stem portion (708/908) has been slid within the slot retention portion (714/914) and the stud flange portion (710/910) is out of alignment with the slot receiver portion (712/912).
A device for mounting a sensor, comprising: a bracket formed with at least one guide hole therein; at least one support rod each passing through a mounting hole in a housing of the sensor and the guide hole in the bracket and mounted on the housing of the sensor and the bracket; and at least one elastic element each disposed on the support rod, so that the sensor is movable relative to the bracket along the support rod against the elastic element. Other brackets can be used. The sensor senses when a cabinet door is closed and sealed.
A fiber optic system includes a telecommunications chassis defining a front and a rear, a plurality of blades (40) slidably mounted to the chassis via rail guide system (42) located at the edges thereof, the blades slidable in a direction extending from the front to the rear (not shown), and a plurality of fiber optic cassettes(not shown) removably mounted to each blade. Each fiber optic cassette includes a housing defining a maximum cassette height, the housing formed by a base and a cover mounted thereon. Each cassette defines fiber optic connection locations. The base of each cassette defines a notched area for receiving a portion (25) of the blade on which the cassette is mounted such that the blade does not increase the overall maximum height defined by the housing.
A fiber optic termination assembly (10) includes a chassis (12) which holds a plurality of pivotally mounted trays (14) in a stacked array. The trays (14) and chassis (12) allow selective access to each tray (14) as desired by pivoting a selected tray (12) relative to the chassis (12). The tray (14) includes a base part (40) and a detachable part (42). The base part (40) remains with the chassis (12), and the detachable part (42) is separable from the base part (40). The base part (40) cooperates with the detachable part (42) to form a cable storage area (74) for storing one or more loops of fiber optic cables. The detachable part (42) includes a termination panel (110) for holding a plurality of adapters (112) wherein the adapters allow for mating of two connectors (114) for fiber optic signal transmission. The detachable part (42) may also include a cable storage area and/or a cable splice area.
Example fiber optic connector systems have rugged, robust designs that are environmentally sealed and that are relatively easy to install and uninstall in the field. Some connector systems can be configured in the field to be compatible with different styles of fiber optic adapters. Some connectors include a first seal (90) on a release sleeve; and a second seal (88) between the release sleeve and a connector body. Other connectors include a seal (139) and a flexible latch (136) on a connector. Other connectors include a protective structure (228, 328, 428) that mounts over the fiber optic connector. Other connectors include a protective outer shell (528, 860) and a sealing and attachment insert (570, 570A, 876). Other connectors include a protective outer shell (728) and a fastener (780).
An optical termination enclosure (100) defines ruggedized adapters at output ports (132); a cable entry port (105) through which an input cable can enter the enclosure; and a sealing arrangement (150) disposed at the cable entry port (105) to seal around the input cable. The sealing arrangement (150) includes a gasket block arrangement (151) defining at least a first cable aperture (108) sized to receive an optical cable; and a retention arrangement (160) to activate the gasket block arrangement (151). The retention arrangement (160) includes a wedge-shaped body (161) and a gel-type sealing member (180).
A cable fixation device (14) including a base (16); two outer cable pathways (24, 26); and an inner pathway (40) including a first inside surface (60) and a second inside surface (62); and a wedge (48) including a first outside surface (50) facing the first inside surface (60), and a second outside surface (52) facing the second inside surface (62), wherein the first and second outside surfaces (50, 52) and the first and second inside surfaces are inclined relative to a longitudinal axis (34) of base (16), wherein wedge (48) is movably mounted to the base (16) in a direction parallel to the longitudinal axis (34) and in a direction transverse to the longitudinal axis (34).
Anchoring an input cable (190) at an input port (123, 223) of an enclosure (110) includes inserting the input cable (190) through an anchor member (151, 251) so that a cable jacket (191) terminates within the anchor member (151, 251) and at least one optical fiber (195) extends outwardly from the anchor member (151, 251). The anchor member (151, 251) is secured to the cable jacket (191) using the sheath (175). A cover (162, 260) is mounted to the anchor member (151, 251) to form a pass-through assembly (150, 250) defining an enclosed region. Material is injected into the enclosed region to fix strength members (197) and/or optical fibers (195) of the input cable (190) to the pass- through assembly (150, 250). The ruggedized pass-through assembly (150, 250) is disposed at a base (120, 220) of the enclosure (110).
A cable element attachment system (300) attaches cable elements (80) to an entrance/exit location (140) of an enclosure (100). The system includes a base (600) and a clamp (700). The base attaches to the entrance/exit location and includes at least one slot (630), first gripping features (672), and a first attachment feature (664). The slot extends to an open end (632). The clamp includes second gripping features (772) positioned opposite of the first gripping features. Each of the gripping features grips the cable elements. The clamp further includes a second attachment feature (764) that attaches the clamp to the first attachment feature. The entrance/exit location may include a seal arrangement (500) that seals the cable elements to the entrance/exit location. The gripping features may deform the cable element both around its circumference and along its path and thereby retain the cable element.
A fiber-optic connector housing (50) and cable (20, 20') are attached together by an anchor (100, 200). The anchor includes a one-piece main body, a passage (110, 210), and an injection port (130, 230). The passage extends between first (102, 202) and second ends (104, 204) of the anchor. Strength members (40, 40') of the cable are secured within the passage by a bonding material (90) and are thereby anchored to the connector housing. A proximal end (54) of the connector housing includes first (60) and second housing components (70) which capture the anchor. The passage passes through an optical fiber (30) of the cable. The passage includes first (120, 220), second (170, 270), and third portions (180, 280). The first portion radially positions the optical fiber. The second portion receives the bonding material and the strength members. The third portion receives a jacket (26, 26') of the fiber optic cable. The injection port delivers the bonding material to the passage. The anchor may further include retention tabs (150) that fit within corresponding receivers (62, 72) within the connector.
A cable management structure (100, 200, 300) for an optical fiber distribution rack (10) is disclosed. In one aspect, the cable management structure (100) supports cables extending from an optical fiber distribution element (50) supported by the rack (10). In one embodiment, a plurality of first cable support guides (102a) are vertically aligned along a first plane (190) while a plurality of second cable support guides (102b) are vertically aligned along a second plane (192). As presented, the first cable support guides (102a) are offset from the second cable support guides (102b) such that the first plane (190) is horizontally recessed from the second plane (192). In one embodiment a side channel frame (130) is provided to support the cable support guides (102). In another embodiment, the optical fiber distribution element (50) is provided with linearly spaced mounting arrangements (60) configured for engagement with cable support guides (202, 302).
A support frame (10) for a cabling trunk assembly (1) is disclosed. In one embodiment, the support frame (10) has a main body (11) defining a mounting surface (41), and a first extension leg (50) extending along a first side edge (42) of the main body (11) and away from the mounting surface (41). Similarly, the support frame (10) can be provided with a second extension leg (52) that extends along a second side edge (44) of the main body (11) and away from the mounting surface (41). The extension legs (50, 52) may be provided with tabs (54, 56) to provide a secure connection with receiving grooves (28, 29) on a channel (12) of the cabling trunk assembly (1). The extension legs (50, 52) may also be configured to provide a snap-fit connection with the receiving grooves (28, 29).
A fiber optic adapter includes a first side wall (110), a second side wall (112) opposite the first side wall, a top wall (114), and a bottom wall (116) opposite the top wall. A cavity (10) is defined by the top wall, the bottom wall, the first side wall, and the second side wall, and an optical fiber alignment device (20) is situated in the cavity. The top wall (114) has an opening (117) therein, and a cover (118) is configured to selectively close the opening.
An optical sensor (100) comprises: a holding sleeve (11); a fixed ferrule (12) fixedly mounted in said holding sleeve (11); a movable ferrule (13) movably mounted in said holding sleeve (11), a predetermined distance existing between a first movable end of said movable ferrule (13) and a first fixed end of said fixed ferrule (12) in said holding sleeve (11); a reflection part (14) arranged at a second movable end of said movable ferrule (13) opposite to said first movable end, for reflecting light entering the movable ferrule (13); and an actuation part (15), said actuation part (15) being constructed to drive said movable ferrule (13) to move so that said first movable end moves towards said first fixed end. An optical sensor assembly and a monitoring device comprising the optical sensor (100), or another sensor (1012) can remotely detect a mechanical movement in a passive mode. A first reflector (14, 1016) is configured to provide a first reflected optical signal. The sensor (100, 1012) is connected to the first reflector and has a first position and a second position, the second position configured to attenuate the first reflected optical signal more than the first position. The sensor is configured to move between the first and second positions in response to a monitored parameter (1018).
G01D 5/26 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light
A seal block assembly (10) includes a housing (12) defining one or more slots (14). Seal block assembly seals a port of a telecommunications box or enclosure. Each seal block element (32) includes a seal block body (34) having first and second body portions (36, 38), and first and second seal portions (40, 42) for sealing around a cable. A sealing system is provided between each seal block element and an adjacent seal block element. A sealing arrangement is also provided between the seal block elements and the slot.
A cable mount (786) for fixing a strength member of a fiber optic cable to a fixture includes a front end (716), a rear end (718), and a longitudinal channel (720) therebetween, the channel defined by upper and lower transverse walls (731, 733) and a vertical divider wall (735). The channel receives a portion of the cable. A strength member pocket (724) receives the strength member of the cable, the pocket located on an opposite side of the divider wall from the longitudinal channel, the pocket communicating with the longitudinal channel through an opening on the divider wall. A strength member clamp fixes the strength member of the cable against axial pull. Cable management structures in the form of spools (727) define at least one notch (797) that communicates with the longitudinal channel for guiding optical fibers extending from a jacket either upwardly or downwardly therethrough. The cable mount also allows routing of the optical fibers through the longitudinal channel all the way from the rear end to the front end.
A universal mounting mechanism for mounting a telecommunications chassis to a telecommunications fixture includes a mounting bracket defining a rear portion for mounting to the fixture and a front portion for slidably receiving the chassis, the front portion including a latch opening. A locking spring is configured for mounting to the chassis, the spring configured to flex laterally to snap in to the latch opening. A release handle is configured to be slidably mounted to the chassis, the release handle defining a deflection tab for moving the locking spring out of the latch opening when the handle is slid rearward to forward. A cover is configured to be mounted to the chassis, the cover defining a deflection ramp for interacting with the deflection tab of the handle to move the deflection tab laterally to contact the spring when the release handle is slid.
A splice with core-writing technology includes: (a) two fiber ends aligned and separated by a gap in a mechanical alignment system containing a polymerizable resin composition and photoinitiators; (b) the core bridge is written by launching UV or visible light through one or both fibers to be connected; and (c) the cladding is formed by flooding light or by thermal curing of polymerizable material to obtain the required refractive index contrast for waveguiding. The splice can be between two fibers, one of which is a connectorized stub. The fibers can be arranged in parallel or in optical alignment with a reflective device.
A termination field and a guide member are independently pivotally coupled to a base body. The termination field pivots relative to the base body along a path of travel. The guide member is coupled to the base body to provide bend radius protection to cables plugged into the termination field. The guide member defines a channel leading the cables from the termination field towards a first side of the base body at an exterior of the base body. In certain examples, the guide member and termination field pivot relative to the base body about different hinge axes. In other examples, the termination field pivots with the guide member for part of the path of travel and relative to the guide member for another part of the path of travel.
A module includes a plurality of splitters, a plurality of inputs, and a plurality of outputs wherein the outputs are connected to multi-fiber connectors and wherein outputs from a plurality of splitters are connected to one of the multi-fiber connectors. The splitters have outputs in multiples of eight, such as a 1x32 splitter. The multi-fiber connectors include twelve fiber cables.
A sealing interface (26) that utilizes an elastomeric sealing member (28) is disclosed herein. The sealing interface (26) is configured to provide effective sealing while requiring only relatively low amounts of force to deform the elastomeric sealing member (28) sufficiently to form an effective seal.
A telecommunications enclosure (20) including a housing (22) with a dome (24) that connects to a base (26). The enclosure (20) includes an insert assembly (28) that fits within the housing (22) and the insert assembly (28) includes a sealing unit (30) that fits within the base (26) and defines a plurality of cable ports (32). The insert assembly (28) also includes a frame (34) attached to the sealing unit (30) and a telecommunications component (36) mounted to the frame (34). The enclosure (20) further includes a mounting bracket (38) for mounting the housing (22) at a desired mounting location. The mounting bracket (38) has a first securement interface (114) for attaching the mounting bracket (38) to the base (26) of the housing (22) and a second securement interface (122) for attaching the mounting bracket (38) to the insert assembly (28).
A tray organization system (100) includes a mounting panel (110); two or more groove plates (130, 160) coupled to the mounting panel (110); and management trays (120) coupled to the groove plates (130, 160). A first groove plate (130) defines a tray receiving region (150), a fiber channel (141) extending along a first side of the tray receiving region (150), a tube channel (143) extending along an opposite second side of the tray receiving region (150), and a fiber bridge (145) disposed above the tube channel (143). Open sides (147, 148) of the fiber and tube channels (141, 143) provide access to the tray receiving region (150). The fiber bridge (145) includes an internal sidewall (149) inhibiting access to the tray receiving region (150). A second groove plate (160) includes a first fiber channel (171) that aligns with the fiber channel (141) of the first groove plate (130) and a second fiber channel (175) that aligns with the fiber bridge (145) of the first groove plate (130).
A sealing and retention arrangement (110) secures cables (170) at one or more ports (104) of a cable closure (100). The sealing and retention arrangement (100) includes a retention block (130) inhibiting axial pull-out of the drop cables (170) from the closure (100). The sealing and retention arrangement (110) also includes a gel block (120) sealing the port (104) around the cables (170). The gel block (120) is separable from the retention block (130) to enable the addition, movement, and/or replacement of one or more cables (170) at the port (104) without disconnecting the retention block (130) from the closure (100). A strength member fixation arrangement (360) can be provided for additional cable fixation.
A fiber management tray (100A, 100B, 100C) for use with blown fiber cables includes a tray body (110) and a locking arrangement (200A, 200B, 200C). The locking arrangement (200A, 200B, 200C) includes at least one trough member (210, 240, 260) defining an open-topped, longitudinally extending channel (213, 243, 263) sized to hold an optical fiber bundle (305). The trough member (210, 240, 260) retains the optical fiber bundle (305) against axial pull-out. Certain types of trough members (260) are wedge-shaped so that the trough member (260) squeezes the optical fiber bundle (305) within the channel (263) when the trough member (260) is pressed into the tray (110). Certain types of trough members (210) include clips (220) that mount to the trough members (210) to enclose the channels (213). Certain types of trough members (240) include teeth (244, 245) extending inwardly at an open top (247) of the channel (243).
A fiber optic connector (12) is mounted to a fiber optic connector holder (14). The holder (14) can be a separate piece mountable to other devices, such as trays, panels, modules, cassettes, and chassis. Alternatively, the holder (14) can be integrally formed with the device. In some implementations, multiple holders (14) can be provided as separate elements, or as an integral element. The fiber optic connector holder (14) holds the fiber optic connector (12) in position ready for connection to another fiber optic connector (50) at a desired time. The holder (14) receives a fiber optic adapter (36), and a second fiber optic connector (50). The adapter (36) aligns the two connectors (12, 50) for fiber optic signal transmission. The fiber optic connector holder (14) includes a clip (26) for clipping to the first connector (12).
A cable storage device (10) is provided with a base (12), a middle support (14) for holding one or more loops of fiber optic cable, and an outer periphery (16) including at least one outer wall. A cable retention device (30) helps to retain the cables in the cable spool device (10).
The present disclosure relates to system and method for cleaning an end face of a bare optical fiber (100). The system and methods include inserting the end face of the bare optical fiber (100) through a layer of material (500) that includes electrospun fibers.
The present disclosure relates to a fiber optic connector including a connector body (122) having a front end and a rear end. A shutter (74) is mounted at the front end of the connector body (122). The shutter (74) is moveable relative to the connector body (122) between an open position and a closed position. The fiber optic connector (69) includes an optical fiber (100) having an end face that is accessible at the front end of the connector body (122) when the shutter (74) is in the open position. The fiber optic connector (69) also includes a cleaning material (501) provided at an inner side of the shutter (74) that covers the end face of the optical fiber (100) when the shutter (74) is in the closed position.
An optical fiber distribution system including a rack and elements (10/210/310/410/510/610) which populate the rack including fiber terminations. Each element (10/210/310/410/510/610) includes a chassis (20/220/520/620) and a movable tray (24/224/524/624). The movable tray (24/224/524/624) includes a synchronized movement device for moving a cable radius limiter (38/238/538/638). The tray (24/224/524/624) includes cable terminations which extend in a line generally parallel to a direction of movement of the movable tray (24/224/524/624). Each of the cable terminations are mounted on hinged frame members (56/256) positioned on each tray (24/224/524/624). The cables entering and exiting the movable tray (24/224/524/624) follow a generally S-shaped pathway (76/276/676).
A cable sealing unit (30) is disclosed. The cable sealing unit includes a sealant (42, 44) and a spring (52) for pressurizing the sealant (42, 44). The spring is retained in a pre-loaded state by a spring retention mechanism (120). The sealing unit includes a release mechanism (122) for releasing the spring retention mechanism (120) once the cable sealing unit (30) has been inserted in a port (28) thereby allowing the spring (52) to pressurize the sealant (42, 44) within the port (28).
A fiber distribution systemincludes a fiber distribution hub with a splice field mounting two stacks of pivot splice trays (630) and two stacks of splitter modules (624) on both sides of a central channel for routing fibre pigtails from the splice trays to the slitter adapter ports.
A telecommunications cable management assembly (100) for a distribution frame (10) is disclosed. The cable management assembly (100) includes a front plate (110) extending between first and second ends (110a, 110c) and is provided with apertures (112) for mounting telecommunications components (20). A first side bracket (120) is mounted with the first end (110a) of the front plate (110) to the distribution frame (10). The first side bracket (120) supports cables (26) extending laterally from components (20). A second side bracket (130) is mounted with the second end (110c) of the front plate (110) to the distribution frame (10). The second side bracket (130) can also support cables (28) extending laterally from components (20).
A fiber distribution terminal (30, 130, 230) including a housing (131, 231); and a spool arrangement (136, 236) that can rotate relative to the housing about an axis of rotation. The spool arrangement includes a drum portion (142, 242) centered on the axis of rotation and a flange (144, 146, 244, 246) that rotates with the drum portion about the axis of rotation. A fiber optic cable (40) is coiled on the drum portion. A fiber optic adapter (164, 264) and a connectorized pigtail (160, 260) are carried with the flange and positioned within the housing. The spool arrangement (136, 236) rotates relative to the housing when the fiber optic cable (40) is paid out. The drum portion (142, 242) can be removed from the flange after the fiber optic cable has been paid out to provide the distribution terminal with a compact configuration.
A subscriber interface unit (60) can be installed by attaching a storage spool (120) to a wall using a fastener (180); deploying a pre-wound cable (50) from the storage spool (120) by turning the storage spool (120) about the fastener (180); and mounting the subscriber interface unit (60) on the storage spool (120). The storage spool (120) includes a drum portion (122) having a side wall (128) and a rear end wall (129). The rear end wall (129) defines a fastener opening (125) aligned with an axis of rotation of the spool (120). A flange portion (124) is coupled to a front end (121) of the drum portion (122). The spool (120) can define a slot (170) having a radial portion (170A) that extends though the flange portion (124) and an axial portion (170B) that extends through the side wall (128) of the drum portion (122).
A fiber optic termination panel (12) includes rows and columns of adapters (20). Index flags (30) are provided for each adapter (20). The index flags (30) are moveable from retracted to extended positions. The index flag (30) assist a technician with adapter identification. RFID tags and/or visual indicators can be provided on flags (30).
A cable holder (10) holds an end (180) of a fiber optic cable (12). In one embodiment, the fiber optic cable (12) is a fiber optic cable that will be connectorized, spliced, or otherwise connected to telecommunications equipment. The cable holder (10) can be removed and the cable can be connectorized, spliced, or otherwise connected to telecommunications equipment. The cable holder (10) can be mounted in a holding device for holding the cable holders (10). The cable holders (10) can include indicia (36) for identifying the cable holder. The cable holder (10) can include a light blocking element (50) for blocking fiber optic signals being carried by the cable (12) during storage. The cable holder (10) can include a device which is reactive to fiber optic signals so as to provide an indication that the fiber optic cable (12) is carrying active signals.
One embodiment is directed to an optical adapter (100, 200) comprising a body (106, 201) in which at least one connector (108) can be inserted; at least one radio frequency identification (RFID) antenna (126, 226) and a visual indicator (128, 228). The optical adapter (100, 200) further comprises at least one adapter contact (136, 224) that is electrically connected to the RFID antenna (126, 226) and the visual indicator (128, 228) (128, 228); and a clip (144, 230) configured to electrically connect the adapter contact (136, 224) to a panel contact (142, 302, 304) on a panel (138, 300) when the optical adapter (100, 200) is inserted into the panel (138, 300) and to mechanically hold the optical adapter (100, 200) in the panel (138, 300). The RFID antenna (126, 226) is configured to be positioned near an RFID tag (102) attached to the connector (108) when the connector (108) is inserted into the body (106, 201) of the optical adapter (100, 200). Other embodiments are disclosed.
Systems and methods for accessing product data managed by a product data server are disclosed. One system includes a product data server hosting a database that includes a first product document describing a product, the document and having a first document format and identified using a first data identifier having a first data identifier format. The database also includes a second product document describing the product and having a second document format different from the first document format, the second product document including dimensional data associated with at least a part of the product, the second product document identified using a second data identifier different from the first data identifier. The product data server includes a product linker component configured to associate the first product document and the second product document with the product, and also includes a dimensional renderer component.
A cleaving mechanism and related method is adapted to cleave an optical fiber and thereby produce a cleaved end on the optical fiber. The cleaving mechanism includes a fixture, a cleave tool for cleaving the optical fiber, a clamp, a scoring member, and a tensioner. The fixture and clamp may hold the optical fiber without substantial twisting of the optical fiber. The fixture and/or the clamp may include a set of flexures that may include a pair of bending beam elements. The tensioner may include a voice coil and may detect slippage of the optical fiber. The tensioner may tune tension on the optical fiber and thereby tune a cleaving angle of the cleaved end. The cleaving mechanism may further include a vision system and thereby further tune the tension. The tensioner may compensate for wear of the cleaving mechanism. The cleave tool may include a bending anvil. The optical fiber may be included in a fiber optic cable that may further include a protective layer surrounding the optical fiber.
One embodiment is directed to an adapter (or other apparatus) comprising a first side configured to be connected to a connecter. The adapter (or other apparatus) further comprises an RFID tag. The adapter (or other apparatus) is configured to read data from an electronic storage device attached to the connecter using power supplied via a radio frequency interrogation signal received by the RFID tag from an RFID reader. The RFID tag is configured to transmit at least a portion of the data read from the electronic storage device to the RFID reader.
One embodiment is directed to an apparatus (such as a patching system or other communication device) comprising a plurality of ports and a plurality of light emitting diodes. Each port has a respective associated pair of light emitting diodes positioned near the port so that a line of sight can be established between the pair if no connector is attached to that port and so that the line of sight will be broken if a connector is attached to that port. For each pair, a first light emitting diode is operated as an emitter that emits light, a second light emitting diode is operated as a detector to detect the light emitted from the first one of the light emitting diodes, and the apparatus is configured to determine if a connector is attached to the associated port associated based on information generated by the second light emitting diode.
One embodiment is directed to an RFID tag assembly comprising an RFID integrated circuit. The RFID tag assembly is configured to couple a visual indicator to the RFID integrated circuit. The RFID integrated circuit is configured to power the visual indicator based on an RFID signal received via an antenna coupled to the RFID integrated circuit and to cause the visual indicator to provide a visual indication under the control of the RFID integrated circuit. The RFID tag assembly is configured so that the visual indicator provides a visual indication when the RFID integrated circuit is transmitting data. Other embodiments are disclosed.
A two layer splitter tray (18) has a cover (32) which mounts to a base (34). The base (34) and the cover (32) define openings for one or more splitters (88). The base (34) and cover (32) include cable management devices (42, 64) for managing the cable and fiber inputs and outputs, and the splices. Further splice trays (16) can be used with the splitter tray (18) for splicing to the splitter outputs. Other trays (100, 200) include a partial cover (140, 240) and openings for optical components and for adhesive attachment of parts.
A sealing unit (28) that fits within the sealing unit opening (26) of a housing (22). The sealing unit (28) including a sealant arrangement (32) that define a plurality of cable ports (30). The sealing arrangement is also configured for providing a peripheral seal between the housing (22) and the sealing unit (28). The sealing unit (28) includes an actuation arrangement (31) for pressurizing the sealant arrangement (32) within the sealing unit opening (26). The sealant arrangement (32) includes a plurality of sealing modules (33a-33e) each sized to form only a portion of the pressure actuated sealant arrangement (32).
An enclosure (20, 220) includes a housing (22, 222) and a sealing unit (48, 42a, 232) that mounts within a sealing unit opening (28, 230) of the housing. The sealing unit (48, 42a, 232) provides a peripheral seal between the housing (22, 222) and the sealing unit (48, 42a, 232) and provides seals around cable ports (50). The sealing unit (48, 42a, 232) can be mounted to and removed from the housing (222) through the sealing unit opening (28, 230). The base (26) lacks a permanent retention structure (55, 155a) at the outer end of the base (26) for retaining the sealing unit (48, 42a, 232) in the base (26). A cover (24) is removable from the base (26) without requiring the sealant arrangement (52, 236) to be de-pressurized. A fastening arrangement (55, 155a) releasably retains the sealing unit (48, 42a, 232) in the sealing unit opening (28, 230).
A cable port size reducing insert (33a-33f) is adapted to be inserted into a cable port (30) of a pressure actuated sealant arrangement (32) of a sealing unit (28) to allow the cable port (30) to accommodate a cable of reduced size. The sealing unit (28) also includes an actuation arrangement (31) for pressurizing the pressure actuated sealant arrangement (32). The cable port size reducing insert (33a-33f) includes an insert body (90) having a composite construction including a volume of sealant at least partially contained between first and second axial containment layers (76, 78) forming first and second axial end caps (70, 72). The insert body (90) defines a reduced size cable port that extends axially through volume of sealant.
An enclosure (20) includes a sealing unit (28, 128, 228, 428) including a sealant arrangement (32, 132, 232, 432) for defining and sealing cable ports (30, 430) and for providing a peripheral seal between a housing (22) and the sealing unit (28, 128, 228, 428). An actuation arrangement (31, 131, 231) pressurizes the sealant arrangement (32, 32, 232, 432). An indicator arrangement (40, 140, 240, 440) indicates to a user that an actuator (35a, 35b, 235, 235, 435) has been sufficiently moved to fully actuate the sealant arrangement (32, 132, 232, 432). Example indicator arrangements (40, 140, 240, 440) include indicia visible through viewing windows (45a, 45b, 433) and/or aligning structures (171, 138, 239, 273). Example indicator arrangements can include 10 structure for accounting for sealant shrinkage over time.
A telecommunications system (10/100) is disclosed herein. The telecommunications system (10/100) includes a chassis (12/112) defining a top end (14/114), a bottom end (16/116), and a generally pyramidal shape, wherein a transverse cross-sectional footprint (28) of the chassis (12/112) changes in outer dimension as the transverse cross-sectional footprint (28) extends from the top end (14/114) to the bottom end (16/116), the telecommunications chassis (12/112) further defining at least one sidewall (30/130, 32/132, 34/134, 36/136), the at least one sidewall (30/130, 32/132, 34/134, 36/136) extending at an angle to both the top end (14/114) and the bottom end (16/116), the at least one sidewall (30/130, 32/132, 34/134, 36/136) defining ports (38) defining connection locations for receiving telecommunications equipment.
A telecommunications chassis (10/100) is disclosed herein. The telecommunications chassis (10/100) is configured for receiving telecommunications equipment. The telecommunications chassis (10/100) defines a top (12), a bottom (14), a front side (16), a rear side (18), a right side (20), and a left side (22), the telecommunications chassis (10/100) defining a central longitudinal axis (36) extending between the top (12) and the bottom (14). A first pair of panels (24/124) is located at the front side (16), a second pair of panels (24/124) is located at the rear side (18), a third pair of panels (24/124) is located at the right side (20), and a fourth pair of panels (24/124) is located at the left side (22). Each panel (24/124) of the pairs of panels (24/124) defines a plurality of receptacles (26/126) for receiving the telecommunications equipment. When mounted to a fixed surface, the telecommunications chassis (10/100) is rotatable relative to the fixed surface about the central longitudinal axis (36). Each panel (24/124) of any given pair of panels (24/124) is pivotable away from the other panel (24/124) of the any given pair of panels (24/124) about a pivot axis (30) parallel to the central longitudinal axis (36) of the chassis (10/100).
A patch panel cover (10) is disclosed. In one embodiment, the patch panel cover includes a main body (12) and a plurality of adapter port apertures (20) located within the main body (12). A plurality of dust covers (30) is also provided. Each of the plurality of dust covers (30) has a main body (32) removably connected to one of the adapter ports (20) by at least a pair of connection legs (34) wherein each of the connection legs (34) extends into a corresponding recess (20a) of the adapter port aperture (20). In one embodiment, the patch panel cover main body (12) and the plurality of dust covers (30) are integrally molded together from a single material, for example a plastic material.
A cable (100) may be secured to an object, such as a cable port of an enclosure, using one or more strips (106) of the jacket (104) of the cable (100). The strips (106) may be attached to a fixation device (110, 120, 130, 140, 150, 160, 170, 180, 190, 200) that is secured to the object. Certain types of fixation devices (110, 120, 130, 140, 150, 160, 170, 180, 200) are configured to apply a clamping pressure to the stripped end portion of the cable jacket when the stripped end portion is positioned between first and second surfaces of the fixation device. Certain types of fixation devices (190) are configured to have the stripped regions (106) threaded through and wrapped around the fixation devices (190) to attach the cable (100).
Optical fiber cables (180) are installed at an enclosure defining at least one cable port (109) by loading a seal block assembly (120, 140, 220, 340, 600, 700) onto each optical fiber cable (180); installing and/or connecting a fixation assembly (160, 460) onto each optical fiber cable (180); and latching the seal block assembly (120, 140, 220, 340) to the enclosure. The cable (180) is secured by the fixation assembly (160, 460). The fixation assembly (160, 460) retains one or more types of strength members (182, 183) of the optical fiber cable (180). The seal block assembly (120, 140, 220, 340) snaps and/or clips into a locked position relative to the enclosure. A filler rod (502) can be used to fill an unused port in the seal block assembly (120, 140, 220, 340). An attachment device (504) can be used to connect to the filler rod (502) for adding a new tube (510) to the seal block assembly.
Methods and systems are provided for a dry silicone gel. The dry silicone gel comprises a base polymer having a vinyl-silicone group and a crosslinker having thiol groups. The dry silicone gel may be made without the use of a catalyst by reacting the base polymer and crosslinker in the presence of a photo or thermal initiator. In some embodiments, the gel also comprises a chain extender having thiol groups. In certain embodiments, the dry silicone gel may comprise: (1) a hardness between 80 g and 300 g, (2) a stress relaxation between 20% and 65% when subjected to a deformation of 50% of the original size of the gel, (3) a compression set between 4% and 20% after 50% strain has been applied to the gel for 1000 hours at 70°C, and/or (4) less than 10% oil bleed out under compression of 1.2 atm after 60 days at 60°C.
One embodiment is directed to a wireless drop terminal (WDT) for use in a fiber-to-the-home (FTTH) network. The wireless drop terminal comprises a fiber interface to optically couple the wireless drop terminal to an optical line terminal (OLT) of the FTTH network via at least one optical fiber and a wireless interface communicatively coupled to the fiber interface. The wireless interface is configured to wirelessly communicate with a wireless optical network terminal (W-ONT) over a fixed directional wireless drop. Other embodiments are disclosed.
The present disclosure relates to a heat dissipation device (16) for telecommunications equipment. The device (16) includes an enclosed conduit (48) extending between an P open first end (50) and an open second end (52), wherein the open first end (50) is configured to be coupled to a heat outlet (44) of a telecommunications fixture (12) and the open second end (52) is configured to be coupled to a heat outlet (38) of a telecommunications device (14) mounted within the telecommunications fixture (12) so as to provide a heat transfer path between the heat outlets (38, 44) of the telecommunications device (14) and the telecommunications fixture (12). An outer dimension (54) of the open second end (52) is adjustable in size for corresponding to a variety of different sized heat outlets (38) of different telecommunications devices (14) that can be mounted within the telecommunications fixture (12). The enclosed conduit (48) is defined by a flexible body (56) for maintaining the heat transfer path between the heat outlet (44) of the telecommunications fixture (12) and a variety of different heat outlet (38) locations of different telecommunications devices (14) that can be mounted within the telecommunications fixture (12).
A closure (10) includes a cover (4) and seal block (18). A feeder cable pathway and rear cover is provided for separation of feeder cables from drop cables. The organizer (426) in the closure includes an end cap and rear cable storage (190). Cable fixation clips, linear or bendable, can be used individually or daisy chained together. Cable fixation chambers (224, 226) are positioned on top of the gel block (220) housing. The organizer is a click together organizer. Dual heights on cable guides on sides of the groove plate facilitate cable installation. Tray supports with rounded ends prevent looseness of the tray mounts. Other organizers include cable routing features for compact storage.
A telecommunications closure (10) comprising cables (46), a cover (20), an interior frame (30), the frame (30) holding telecommunications equipment (32), and a seal block (40) sealing the cover (20) closed relative to one or more cables (46) which enter the closure (10). The frame (30) defines a plurality of clamp assembly holders (36). A plurality of clamp assemblies (60, 160, 260) are provided, each clamp assembly (60, 160, 260) for holding a cable including a jacket (48), interior optical fibers (52), and at least one interior strength member (50). Each clamp assembly (60, 160, 260) includes a jacket clamp assembly (64, 164, 264) moveable relative to the frame, and including a wrap (68) which mounts around the jacket, and a strength member clamp assembly (80, 180, 280) moveable relative to the frame. The wrap (68) wraps around the jacket (48) and is adjustable for different jacket diameters. The strength member clamp assembly (80, 180, 280) is mountable in a plurality of positions relative to the jacket clamp assembly (64, 164, 264) to account for variations in the relative location of the strength member relative to the jacket clamp assembly. The clamp assembly (60, 160, 260) is moveable relative to the frame (30) wherein the cable (46) is allowed to move to a proper position relative to the seal block (40) so as to reduce the likelihood of a leak by being centrally positioned relative to the cable opening through the seal block.
A cable termination bracket (18) includes abase (32) configured to be mounted to a piece of telecommunications equipment (20), the base (32) defining a front (40) and a back (42), the base (32) defining a first sidewall (34) and a second sidewall (36). A plate (48/50) is configured to be mounted to the first and second sidewalls (34, 36) to allow for limited relative movement therebetween, the plate (48/50) defining a first clamp mount (84) for receiving a first clamp assembly (86) for fixedly mounting a strength member (14) of a telecommunications cable (10) to the plate (48/50) such that any forces on the strength member (14) are transferred to the plate (48/50). When the plate (48/50) is pulled or pushed with respect to the base (32), the plate (48/50) is restricted from movement along a front to back direction, wherein the plate (48/50) is mounted to the base (32) such that the plate (48/50) is configured to relatively move with respect to the base (32) along a first plane (140) perpendicular to the first and second sidewalls (34, 36) and along a second plane (142) parallel to the first and second sidewalls (34, 36).
A micro -mechanical positioning system may be used to precisely position a bare optical fiber (50, 150A, 150B, 251, 253) for optical coupling. A plurality of alignment fingers (40, 40A-40D, 40', 407, 407A-407D) can be used to provide support to the optical fiber (50, 150A, 150B, 251, 253) as well as to center and/or align the optical fiber along a predetermined axis. The alignment fingers (40, 40A-40D, 40', 407, 407A-407D) can engage the optical fiber (50, 150A, 150B, 251, 253) and provide retention of the optical fiber that resists axial movement of the optical fiber.
A cable fixation system (20) and method comprising a cable (10), a loop (30, 230) of material initially larger than an outer diameter of the cable (10), the loop (30, 230) including outwardly extending ears (48), the ears (48) having distal free ends (50). A fixation plate (60, 260) comprising a tapered slot (62, 262) engages the ears (48), and draws the ears (48) closer together as the ears (48) are moved longitudinally into the slot (62, 262), thereby reducing the diameter of the loop. A retention device (80, 280) retains the loop (30, 230) in position around the cable (10). The fixation plate (60, 260) and/or the retention device (80, 280) can be mounted to telecommunications equipment (400) for retaining the one or more cables.
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
F16L 3/04 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing and pressing it against a wall or other support
H02G 3/32 - Installations of cables or lines on walls, floors or ceilings using mounting clamps
The present disclosure relates to a fiber optic telecommunications device. The device includes a support frame (100/200/300/400/500) configured to be pivotally coupled to a fixture (10), the support frame (100/200/300/400/500) pivotable about a pivot axis (30). An adapter mount (112/212/312) is integrally mounted to the support frame (100/200/300/400/500) by at least one reinforcement wall (118/120/218/220/418/520), the reinforcement wall (118/120/218/220/418/520) defining a first side edge (122) and a second side edge (124). A fiber optic adapter (32) mounted to the adapter mount (112/212/312) defines a first connector receiving end (34) and a second connector receiving end (36). When the adapter (32) is mounted to the adapter mount (112/212/312), the first and second connector receiving ends (34, 36) of the adapter (32) extend beyond the first and second side edges (122, 24) of the reinforcement wall (118/120/218/220/418/520).
Example enclosure assemblies (100) include an enclosure (103); a plurality of splice trays (140) disposed within the enclosure (103); and a loop storage tray (150) disposed within the enclosure (103). The loop storage tray (150) defines a round-about pathway (161) for storing excess length of optical fibers (200) and a pathway for a looped section (220) of the optical fibers (200). Certain types of storage trays (150) are pivotally coupled to the enclosure assembly (100) about a storage pivot axis (PI) that is not parallel to pivot axes (PS) of the splice trays (140).
To manage slack storage, a first spool member (110) is extended relative to the second spool member (120); a fiber optic cable (150) is added to the first spool member (110) when in the extended position; and the first spool member (110) is pushed relative to the second spool member (120) to a retracted position. The first spool member (110) may be biased towards the extended position. The first spool member (110) may be releasably latched in the retracted position.
The present invention relates to a tray for use in a subrack of a rack. The tray comprises a printed circuit board configured so that a plurality of connections can be made at a plurality of positions on the printed circuit board, each of the plurality of connections involving at least one connector positioned on a patch side of the plurality of positions and the least one connector having a device associated therewith in which information is stored. Either side of the positions can be used as the patch side, and the devices associated with the connectors involved in making the connections at the patch side can be read via the tray. The devices can be implemented using RFID tags or connection point identifier (CPID) storage devices. A subrack comprises a backplate and at least one tray, wherein the tray can be selectively attached and removed from the backplate.
Optical fiber cables (180) are installed at an enclosure defining at least one cable port (109) by loading a seal block assembly (120, 140) onto each optical fiber cable (180); installing a fixation assembly (160) onto each optical fiber cable (180); securing the fixation assembly (160) to the enclosure; and latching the seal block assembly (120, 140) to the enclosure. The cable (180) is secured by the fixation assembly (160) and not by the seal block assembly (120, 140). The fixation assembly (160) retains one or more types of strength members (182, 183) of the optical fiber cable (180). The seal block assembly (120, 140) snaps into a locked position relative to the enclosure.
A visual inspection system (100, 200) for optical fibers (150) includes at least a pattern source (120, 220A, 220B, 220C, 520); at least a first illumination source (130, 230A, 230B, 230C, 510, 522) to direct light towards an optical fiber (150); and at least a first camera (140, 240A, 240B, 240C, 40) positioned at an opposite side of the fiber (150) from the pattern source (120, 220A, 220B, 220C, 520). At least one image (170, 180, 190) of the optical fiber (150) is taken and a pattern visible through the optical fiber (150) in the image (170, 180, 190) may be analyzed to detect distortions in the pattern.
The present disclosure relates to a fiber optic connector assembly having a fiber optic connector including a main connector body and a rear insert secured within a rear cable termination end of the main connector body. The fiber optic connector assembly has a fiber optic cable that includes an optical fiber, a strength layer and an outer jacket. The optical fiber has a ferrule-less end portion accessible at a front mating end of the main connector body. A first shape recoverable sleeve secures the optical fiber to a substrate anchored to the rear insert. An axial gap exists between the forward end of the outer jacket and the rearward end of the rear insert. A second shape recoverable sleeve secures the outer jacket to the rear insert. An adhesive material at least partially fills the axial gap.
The present disclosure relates to an optical fiber alignment device that has an alignment housing that includes first and second ends. The alignment housing defines a fiber insertion axis that extends through the alignment housing between the first and second ends. The alignment housing includes a fiber alignment region at an intermediate location between the first and second ends. First and second fiber alignment rods are positioned within the alignment housing. The first and second fiber alignment rods cooperate to define a fiber alignment groove that extends along the fiber insertion axis. The first and second fiber alignment rods each having rounded ends positioned at the first and second ends of the alignment housing.
A strain relief device (24) for anchoring a fiber optic cable (22) to telecommunications equipment (10) includes a base (34) defining a top side (52) and a bottom side (54), the base (34) defining a base channel (60) having an open top and a closed bottom and that receives the fiber optic cable (22) from the open top, the base channel (60) defining a longitudinal axis (62) generally parallel to a longitudinal axis (82) of the fiber optic cable (22) when the fiber optic cable (22) is placed within the base channel (60), the base (34) further defining a first sliding coupling structure (66) extending at a generally acute angle relative to the longitudinal axis (62) of the base channel (60) along a top to bottom direction. The strain relief device (24) further including a cover (44) defining a top side and a bottom side, the cover (44) defining a cover channel (80) having an open bottom and a closed top and that receives the fiber optic cable (22) from the open bottom, the cover channel (80) defining a longitudinal axis (78) generally parallel to the longitudinal axis (82) of the fiber optic cable (22) when the fiber optic cable (22) is placed within the cover channel (80), the cover (44) further defining a second sliding coupling structure (68) extending at a generally acute angle relative to the longitudinal axis (78) of the cover channel (80) along a top to bottom direction, the second sliding coupling structure (68) slidably mating with the first sliding coupling structure (66) for clamping the fiber optic cable (22) in between the base (34) and the cover (44).
The present invention relates to a sealing unit (1; 100) for a cable opening, the sealing unit (1; 100) comprises at least two sealing members (10, 20; 110, 120) abutable against each other for providing there between at least one cable passage (2; 102) for receiving and sealingly guiding a cable therethrough. The inventive sealing unit (1; 100) provides sealing of a cable passage (2; 102) irrespective whether a cable is received therein or not with a deuced number of parts and is characterized in that at least one of the two sealing members (10, 20; 110, 120) comprises a cable passage seal (12; 112) for sealing the cable passage (2; 102), wherein the cable passage seal (12; 112) is elastically bendable to be pushed away by the cable for enabling sealingly guiding of the cable through the cable passage (2; 102).
A telecommunications frame (100, 200) defines an interior (108, 208) in which telecommunications components and/or optical fiber management components are disposed. A first main door (130, 150, 230, 250) is coupled to the frame (100, 200) and configured to move along a first path (P1, P3, P5) between a closed position and an open position. A first cable access door (132, 152, 232, 252) is coupled to the first main door (130, 150, 230, 250) and is configured to move with the first main door (130, 150, 230, 250) along the first path (P1, P3, P5) between the closed and open positions. The first cable access door (132, 152, 232, 252) also is configured to move relative to the first main door (130, 150, 230, 250) along a second path (P2, P2', P4, P4', P6, P6') between a blocking position and an unblocking position. The first cable access door (132, 152, 232, 252) inhibits access to the frame interior (108, 208) when in the blocking position and provides a cable access gap (117, 177', 119, 119') leading to the frame interior (108, 208) when in the unblocking position even when the first main door (130, 150, 230, 250) is in the closed position.
A telecommunications apparatus (10, 210) includes a frame (20, 220) for mounting to a fiber optic cable trough (104, 106, 206). The frame (20, 220) includes a main body (22, 222) defining at least one opening (24, 26). The opening (24, 26) receives a connector module (60, 260). The frame (20, 220) includes a plurality of extensions (40, 240) extending transversely to the main body (22), wherein one or more extensions (40, 240) includes two parallel prongs (42) separated by a slot (44). Fasteners (34) mount the frame (20, 220) to slots (138) on a trough system element.
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution box; Ensuring electrical continuity in the joint
An enclosure (10) is provided for connecting drop cables (12) to feeder cables (14). The enclosure (10) includes a movable cover (22). Disposed within an interior of the enclosure (10) is a drop cable box (60), a termination panel (80), and at least one feeder cable box (70). Disposed within the drop cable box (60) are cable splices (212). A movable door (200) of the drop cable box includes the splices and the termination panel. The movable door (200) of the drop cable box (60) pivots downwardly to access an interior of the drop cable box. Each feeder cable box (70) includes a pivoting door (152) which allows access to cable splices (164), cable splitters (180), and the loop cable (102). The splices pivot (164) downwardly to expose the splitters (180) positioned behind the splices. The splitters (180) are positioned within an inner area (184) of a loop cable pathway (170) of the fiber cable box (70). A plurality of fiber cable boxes (70) are provided for multiple fiber cables to feed enclosure (10) for selective connection to the drop cables (12). Cable storage is provided on door (152) for unused pigtails.
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