Patent Description:
The present disclosure relates generally to sealed telecommunications enclosures.

Telecommunications systems typically employ a network of telecommunications cables capable of transmitting large volumes of data and voice signals over relatively long distances. The telecommunications cables can include fiber optic cables, electrical cables, or combinations of electrical and fiber optic cables. A typical telecommunications network also includes a plurality of telecommunications enclosures integrated throughout the network of telecommunications cables. The telecommunications enclosures are adapted to house and protect telecommunications components such as splices, termination panels, power splitters and wavelength division multiplexers.

It is often preferred for the telecommunications enclosures to be re-enterable. The term "re-enterable" means that the telecommunications enclosures can be reopened to allow access to the telecommunications components housed therein without requiring the removal and destruction of the telecommunications enclosures. For example, certain telecommunications enclosures can include separate access panels that can be opened to access the interiors of the enclosures, and then closed to re-seal the enclosures. Other telecommunications enclosures take the form of elongated sleeves formed by wrap-around covers or half-shells having longitudinal edges that are joined by clamps or other retainers. Still other telecommunications enclosures include two half-pieces that are joined together through clamps, wedges or other structures.

Telecommunications enclosures are typically sealed to inhibit the intrusion of moisture or other contaminants. Pressurized gel-type seals have been used to effectively seal the locations where telecommunications cables enter and exit telecommunications enclosures. Example pressurized gel-type seals are disclosed by document <CIT> and document <CIT>. Both of these documents disclose gel-type cable seals that are pressurized through the use of threaded actuators. Document <CIT> discloses a cable seal that is pressurized through the use of an actuator including a cam lever. <CIT> and <CIT> disclose enclosures having gel blocks with individually removable gel sealing modules. While pressurized cable seals have generally proven to be effective, improvements in this area are still needed. Patent publications - <CIT> and <CIT> - disclose relevant background information that may be useful for understanding the present invention.

The present invention is defined by appended independent claim <NUM>. Optional features are defined by the appended dependent claims. One aspect of the present disclosure relates to an enclosure having a sealing unit with a gel block capable of being placed under tension to facilitate removal of the gel block from the enclosure.

Another aspect of the present disclosure, not covered by claims, relates to a method for removing a gel block from a gel-block mounting sleeve of a housing. The gel block is moved along an axis relative to the gel-block mounting sleeve during removal of the gel block from the gel-block mounting sleeve. The method includes placing the gel block in axial tension along the axis while the gel block is in the gel-block mounting sleeve to at least partially break or reduce adhesion between a radially outwardly facing surface of the gel and a radially inwardly facing surface of the gel-block mounting sleeve. The method also includes removing the gel block from the gel-block mounting sleeve by moving the gel block along the axis relative to the gel-block mounting sleeve after the gel has been placed in tension. In the above example, the gel can be maintained in tension as the gel block is removed from the gel-block mounting sleeve. In any of the above examples, the gel can be placed in tension by an actuator that is also used to apply axial compressive load to the gel to enhance sealing of the gel within the gel-block mounting sleeve. In any of the above examples, the actuator can include at least one spring or a plurality of springs for applying axial compressive load to the gel in the form of compressive spring pressure. In any of the above examples, the gel can define at least one axially extending cable sealing port. In any of the above examples, the gel can define a plurality of axially extending cable ports. In any of the above examples, the gel block can include a plurality of individual gel sealing modules that cooperate to define the gel block. In any of the above examples, the actuator can include inner and outer pressurization structures between which the gel block is pressurized during sealing. In any of the above examples, the gel sealing modules can be attached to inner and outer pressurization structures of an actuator by snap-fit connections capable of transferring tensile load from the pressurization structures to the gel sealing modules. In certain examples, the snap-fit connections can be made by snap-fit interface components which snap together in an axial orientation. In certain examples, the snap-fit interface components can include posts and snap-fit collars. In certain examples, the gel sealing modules are individually and separately removable from between inner and outer pressurization structures and at least a plurality of their removable gel sealing modules are cable sealing modules each including: at least first and second gel portions that meet at a separable interface at which at least one cable port is defined, the first and second gel portions being capable of being separated from one another when the cable sealing module is not between the inner and outer pressurization structures to allow a cable to be inserted laterally into the cable port; and end caps between which cable ports extend, end caps each including first end cap portions attached to opposite ends of the first gel portion and second end cap portions attached to opposite ends of the second gel portion, the first and second end cap portions separating from one another when the first and second gel portions are separated from one another. In certain examples, living hinges or other flexible connections can be used to interconnect the separate portions of the cable sealing modules.

Another aspect of the present disclosure, not covered by claims, relates to a cable sealing module for mounting between pressurization structures of an actuator of a sealing unit. The cable sealing module includes at least first and second gel portions that meet at a separable interface at which at least one cable port is defined. First and second gel portions are capable of being separated from one another when the cable sealing module is not between the pressurization structures to allow a cable to be laterally inserted into the cable port. The cable sealing module also includes end caps between which an axis of the cable port extends. The end caps each include first end cap portions attached to opposite ends of the first gel portion and second end cap portions attached to opposite ends of the second gel portion. The first and second end cap portions separate from one another when the first and second gel portions are separated from one another. The cable sealing module also includes snap-fit structures integrated with the end caps for coupling in a snap-fit connection with the pressurization structures of the actuator. In the above example, the snap-fit structures can include posts or collars. In any of the above examples, the snap-fit structures can include posts having enlarged heads, posts projection outwardly from the end caps in an orientation parallel to the axis of the cable port. In any of the above examples, the separable portions of the cable sealing module can be coupled together by a living hinge their flexible means that allows the portions to be separated from one another at the separable interface while preventing the separable portions from being completely detached from one another. In still other examples, the separable portions of the cable sealing modules can be completely detachable from one another.

The present invention relates to an enclosure including a housing including a gel-block mounting sleeve. The enclosure also includes a gel sealing unit including: a gel sealing block that mounts within the gel-block mounting sleeve; and an actuator capable of applying compressive load to the gel sealing block during sealing, and capable of applying tensile load to the gel sealing block to facilitate removal of the gel sealing block from the gel-block mounting sleeve. The actuator includes at least one spring for applying the compressive load to the gel sealing block in the form of compressive spring pressure. The actuator includes pressurization structures between which the gel seal block mounts, wherein the gel sealing block is pressurized between the pressurization structures during sealing, when the gel sealing block is coupled to the pressurization structures by a coupled interface that allows the pressurization structures to apply tension to the gel sealing block prior to removal of the gel sealing block from the gel-block mounting sleeve, and wherein during tensioning positioning of the pressurization structure is absolutely controlled by a trigger arrangement of the actuator without influence from the at least one spring. In any of the above examples, the trigger arrangement can apply compressive load for forcing the pressurization structures together through at least one spring and can positively engage the pressurization structures during tensioning such that axial movement of a threaded component of the trigger arrangement is converted into an equal axial increase in a spacing between the pressurization structures. In any of the above examples, the trigger arrangement can engage a positive stop corresponding to at least one of the pressurization structures to provide positive movement of the pressurization structures during tensioning after the one or more springs have been de-compressed. In any of the above examples, the gel block can include a plurality of individual gel sealing modules that cooperate to define the gel block. In any of the above examples, the gel sealing modules can be attached to the inner and outer pressurization structures by snap-fit connections capable of transferring tensile load from the pressurization structures to the gel sealing modules. In any of the above examples, the snap-fit connections are made by snap-fit interface components which snap together in an axial orientation. In any of the above examples, the snap-fit interface components can include posts and snap-fit collars. In any of the above examples, the gel sealing modules can be individually and separately removable from between the pressurization structures and at least the plurality of the removable gel sealing modules are cable sealing modules each including: at least first and second gel portions that meet at a separable interface which at least one cable port is defined, the first and second gel portions being capable of being separated from one another when the cable sealing module is not between the pressurization structures to allow a cable to be laterally inserted into the cable port; and end caps between which the cable port extends, the end caps each including first end cap portions attached to opposite ends of the first gel portion and second end cap portions attached to opposite ends of the second gel portion, the first and second end cap portions separating from one another when the first and second gel portions are separated from one another. In any of the above examples, the end caps can include snap-fit structures for coupling in a snap-fit connection with the pressurization structures. In any of the above examples, the housing can include a dome coupled to a base, wherein the gel-block mounting sleeve is defined within the base. In any of the above examples, the base can include a first end that couples to the dome and an opposite second end, and the gel sealing block can be inserted into the gel-block mounting sleeve through the second end of the base. In any of the above examples, the pressurization structures can include inner and outer pressurization structures, wherein the inner pressurization structures coupled to an anchoring bracket that is carried with the inner pressurization structure when the gel sealing block is inserted into and remove from the base, wherein the anchoring bracket can be axially inserted into the base with the gel sealing block when in a first rotational position relative to the base, and wherein once the gel sealing block and the anchoring bracket have been inserted into the base, the gel sealing block and the anchoring bracket can be rotated relative to the base to a second rotational position where the anchoring bracket is axially affixed within the base. In certain examples, the anchoring bracket is prevented from rotating from the second rotational position back to the first rotational position by a fastener, a snap-fit structure, a clip, a latch, a slide latch, or other structure. A further aspect of the present disclosure relates to an enclosure having a housing including a dome coupled to a base. The base includes a first end that couples to the dome and an opposite second end. The base defines a gel-block mounting sleeve. The enclosure also includes a gel sealing unit including a gel sealing block that mounts within the gel-block mounting sleeve by inserting the gel block through the second end of the base. The enclosure further includes an actuator capable of applying compressive load to the gel sealing block during sealing. The actuator includes inner and outer pressurization structures between which the gel sealing block mounts. The inner pressurization structure is coupled to an anchoring bracket that is carried with the inner pressurization structure when the gel sealing block is inserted into and removed from the base. The anchoring bracket can be axially inserted into the base with the gel sealing block when in a first rotational position relative to the base. Once the gel sealing block and the anchoring block have been inserted into the base, the gel sealing block and the anchoring bracket can be rotated relative to the base to a second rotational position where the anchoring bracket is axially fixed within the base. It will be appreciated that the term "axially fixed" means that movement in the axial direction is generally limited or prevented, but a small amount of substantially non-functional movement may occur. In certain examples, the anchoring bracket is prevented from rotating from the second rotational position back to the first rotational position by a fastener, or a snap-fit structure, or a clip, or a pivoting latch, or a slide latch, or other type of latch, or other structure. In certain examples, fiber optic organizers coupled to the anchoring bracket is carried with the gel sealing unit during insertion into the base, the fiber optic organizer preferably including a plurality of pivotal fiber management trays such as splice trays.

A further aspect of the present disclosure relates to a gel sealing unit including a gel sealing block and an actuator capable of applying compressive load to the gel sealing block during sealing. The actuator includes pressurization structures between which the gel sealing block mounts. The actuator includes a trigger arrangement for transferring compressive load to the pressurization structures. At least one of the pressurization structures is axially moved along a first axis relative to the other of the pressurization structures when the trigger arrangement is actuated. The trigger arrangement includes a handle that is rotated about a second axis angled relative to the first axis to cause relative movement between the pressurization structures along the first axis. In certain examples, the first and second axes are perpendicular. In any of the above examples, trigger arrangement can include an angled gear arrangement for transferring torque from the handle to a rotatable component of the trigger arrangement that rotates about the first axis. In any of the above examples, the angled gear arrangement can include angled bevel gears. In any of the above examples, the angled bevel gears that include right angle bevel gears. In any of the above examples, the rotatable component can include a nut threaded on a threaded first shaft of the trigger arrangement wherein the threaded first shaft is aligned along the first axis and is configured to be placed in tension when compressive load is applied to the pressurization structures by the trigger arrangement, wherein a first angled bevel gear in integrated with or coupled to the nut, wherein the handle is mounted on a second shaft aligned with the second axis and is rotated about the second axis by turning the handle, and wherein the second shaft is coupled to a second angled bevel gear that intermeshes with the first angled bevel gear.

A variety of additional inventive aspects will be set forth in the description that follows. The inventive aspects can relate to individual features and to combinations of features. It is to be understood that both the forgoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad inventions and inventive concepts upon which the examples disclosed herein are based.

<FIG> illustrates a telecommunications enclosure <NUM> including a housing <NUM>. In one example, the housing <NUM> includes a dome <NUM> that attaches to a base <NUM>. The base <NUM> can include a first end <NUM> adapted for connection to the dome <NUM> and a second end <NUM>. In one example, the first end <NUM> can connect to the dome <NUM> by means such as a clamp <NUM>. An environmental seal <NUM> (shown at <FIG> as an O-ring) can be provided between the base <NUM> and the dome <NUM> to provide environmental sealing. As shown at <FIG>, a telecommunications assembly unit <NUM> is adapted to be housed within the housing <NUM>. The telecommunications assembly unit <NUM> includes a fiber optic manager <NUM> coupled to a gel sealing unit <NUM>. The gel sealing unit <NUM> includes a gel sealing block <NUM> that mounts within an actuator <NUM>. When the telecommunications assembly unit <NUM> is housed within the housing <NUM>, the gel sealing block <NUM> fits within a gel-block mounting sleeve <NUM> confined within the base <NUM>, and the fiber optic manager <NUM> is enclosed within the dome <NUM>. It will be appreciated that the telecommunications assembly unit <NUM> can be loaded into the base <NUM> through the second end <NUM> of the base <NUM>. Once the gel sealing block <NUM> is within the gel-block mounting sleeve <NUM>, the gel sealing block <NUM> can be axially compressed by the actuator <NUM> to provide sealing. Sealing can include sealing of any cables routed through the cable ports defined by the gel sealing block <NUM>, and can also include peripheral sealing <NUM> defined between a radially outwardly facing gel surface <NUM> of the gel sealing block <NUM> and a radially inwardly facing surface <NUM> of the gel-block mounting sleeve <NUM>. The peripheral sealing can be also called a circumferential sealing can extend circumferentially around the gel sealing block <NUM>.

Typically, after insertion of the gel sealing block <NUM> within the gel-block mounting sleeve <NUM>, the actuator <NUM> is actuated to pressurize the gel sealing block <NUM> axially causing the gel of the gel sealing block <NUM> to flow to fill any voids and to press/expand radially outwardly against the inwardly facing radial surface <NUM> of the gel-block mounting sleeve <NUM> to provide an effective peripheral seal. After time, relatively strong adhesion can develop between the radially outwardly facing surface <NUM> of the gel sealing block <NUM> and the radially inwardly facing surface <NUM> of the gel-block mounting sleeve <NUM>. This type of adhesion can make it difficult to remove the gel sealing block <NUM> from the base <NUM> at a later date. The present invention relates to a gel sealing unit <NUM> which is configured to be capable of applying compressive spring load to the gel sealing block <NUM> to effect sealing, and also capable of applying tensile load to the gel sealing block <NUM> to cause the gel sealing block <NUM> to radially constrict such that adhesion between the outer surface of the gel sealing block <NUM> and the inner surface of the gel-block mounting sleeve <NUM> is broken or weakened. In this way, removal of the gel sealing unit <NUM> from the base <NUM> is facilitated.

Referring to <FIG>, the fiber manager <NUM> includes a fiber management tower <NUM> capable of pivotally supporting a plurality of fiber management trays <NUM> (one tray is shown at <FIG>, but typically a plurality of stacked and overlaid pivotal trays are provided at opposite sides of the fiber management tower <NUM>). For example, sets of fiber management trays can be pivotally mounted in a stacked relationship on opposite first and second major sides <NUM>, <NUM> of the fiber management tower <NUM>. The trays can be snapped into receptacles <NUM> at the major sides <NUM>, <NUM> of the tower <NUM>. The fiber management trays can be adapted to hold fiber optic components such as fiber optic splices, wavelength division multiplexers, passive optical splitters, and the like. In certain examples, fiber routing to the trays can be provided at opposite minor sides <NUM>, <NUM> of the tower <NUM>. The fiber management tower <NUM> can include a lower support extension <NUM> (e.g., a projection) that couples to an anchoring bracket <NUM> configured to be locked or fixed within an interior of the base <NUM>. When the anchoring bracket <NUM> is fixed relative to the base <NUM>, the anchoring bracket <NUM> is prevented from axially moving relative to the base <NUM>. The anchoring bracket <NUM> can also be coupled to the gel sealing unit <NUM>. Thus, the anchoring bracket <NUM> can provide a means for axially fixing/supporting the entire telecommunications assembly unit <NUM> within the interior of the housing <NUM>. In one particular example, the anchoring bracket <NUM> can interconnect with the base <NUM> by a twist-to-lock configuration.

In certain examples, cable anchoring units <NUM> can be mounted on the gel sealing unit <NUM> and/or to the anchoring bracket <NUM>. In certain examples, the cable anchoring units <NUM> can mount within/to intermediate adapters <NUM> that attach to the gel sealing unit <NUM> and/or the anchoring bracket <NUM> by means such as a snap-fit connection. The adapter <NUM> can be configured to receive a plurality of cable anchoring units <NUM>, or can be configured to receive single cable anchoring units. It will be appreciated that different styles and types of cable anchoring units <NUM> can be fitted in the adapter <NUM> so as to be compatible with different type sizes and types of cables routed through the gel sealing unit <NUM>. In other examples, cable anchoring units <NUM> may be mounted directly to the anchoring bracket <NUM> without the use of intermediate adapters <NUM>. It will be appreciated that the anchoring bracket <NUM> can include snap-fit structures, hooks, tabs, rails, slot openings, or other structures for allowing adapters and/or cable anchoring structures and/or adapters to be readily attached to the anchoring bracket <NUM>. In certain examples, the anchoring bracket <NUM> can have a spoked configuration with a plurality of arms that project radially outwardly from a central hub. Similarly, in certain examples, pressurization structures of the actuator <NUM> can also have a spoked configuration with arms that project radially outwardly from the central hub.

In certain examples, fiber management tubes are routed between the cable anchoring structures <NUM> and the fiber management tower <NUM>. In certain examples, it is preferred for these fibers to be routed within protective tubes (e.g., buffer tubes, furcation tubes, etc.) between the cable anchoring structures <NUM> and the fiber management tower <NUM>. In certain examples, the protective tubes can be held within tube mounts (e.g., tube holders or like structures). It is preferred for the tube mounts to be configured to efficiently utilize space within the housing <NUM> for tube routing. In certain examples, the base <NUM> and the dome <NUM> are circular or cylindrical in shape. In certain examples, tube mounts <NUM> having curvatures that generally conform to the shape of the base <NUM> and/or the dome <NUM>. The tube mounts <NUM> can be provided at the major sides <NUM>, <NUM> of the fiber management tower <NUM> (see <FIG>). Preferably, the tube mounts <NUM> can be provided at a base of the fiber management tower <NUM>. In certain examples, fiber management spools or bend radius limiters <NUM> can be provided above the tube mounts <NUM> for facilitating routing fibers without violating minimum bend radius requirements of the optical fibers. The bend radius limiters <NUM> or spools can be used to readily route fibers in a figure-eight shape or partial figure-eight shape to smoothly transition fibers to either of the minor sides <NUM>, <NUM> of the fiber management tower <NUM> regardless of where the fibers are routed through the tube mount <NUM>. In certain examples, tube mount <NUM> can include an overall body defining a plurality of tube holders <NUM> in the form of open sided grooves/slots sized to frictionally hold tubes therein. The tube holders can be arranged in a row or rows. In certain examples, a mid-plane MP bisects the major sides <NUM>, <NUM> of the fiber management tower <NUM>, and the tube holders <NUM> are depicted as curved slots. Curved slots 69a on one side of the mid-plane MP are configured to curve toward the minor side <NUM> of the tower <NUM> as the slots extend upwardly from bottom ends <NUM> to top ends <NUM> of the slots. In contrast, curved slots 69b on the opposite side of the mid-plane MP are configured to curve toward the minor side <NUM> of the tower <NUM> as the slots extend upwardly from bottom ends <NUM> to top ends <NUM> of the slots. In certain examples, an overall shape of the body of the tube mount <NUM> is curved along curves along a curvature <NUM> that extends about a central axis <NUM> of the base <NUM>. The curvature <NUM> extends along a length L of the body, and the holders <NUM> are spaced along the length L. In certain examples, an outer face <NUM> of the body of the tube mount <NUM> has a convex curvature that extends generally about the central axis <NUM> across a width of the major sides <NUM>, <NUM>, and an inner face of the body of the tube mount <NUM> has a concave curvature that extends about the central axis <NUM> across the width of the major sides <NUM>, <NUM>. In certain examples, the outer face <NUM> of the body of the tube mount <NUM> can also have a convex curvature that extends from bottom side to a top side of the body of the tube mount <NUM>. The curved arrangement of the tube mount assists in effectively utilizing space within the housing <NUM> for fiber routing. Markings <NUM> can be provided on the outer face <NUM> to indicate preferred termination/ending locations for the tubes to leave room for tube expansion.

<FIG> show an alternative tube mount <NUM> having an overall body shape that is curved along curves along a curvature <NUM> that extends about a central axis <NUM> of the base <NUM>. The curvature <NUM> extends along a length L of the body, and tube holders <NUM> are spaced along the length L. The length L extends across a width of the corresponding major side of the tower <NUM>. The tower <NUM> can also be referred to as a tray mount. Tube mount <NUM> can be positioned at the bottom of each of the major sides <NUM>, <NUM>. The tube holders <NUM> are depicted as closed channels. The closed channels can be defined by flexible arms <NUM> that can be flexed apart to allow tubes to be inserted in the channels.

Referring to <FIG>, the gel sealing block <NUM> includes a plurality of individual gel sealing modules <NUM> that cooperate to define the gel block <NUM>. While gel sealing modules are all depicted having the same configuration and each define a single cable port, it will be appreciated that gel sealing modules having the same form factor but different port configurations can be used and can be mixed and matched in a given gel block. Example cable sealing modules can include <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM> or more cable ports. Additionally, cable sealing modules having different port shapes (e.g., round, obround, race-track shaped, etc.) can be used. Blank sealing modules with no ports can also be used.

In certain examples, each of the gel sealing modules <NUM> can have a truncated wedge shape. <FIG> show one of the gel sealing modules <NUM> having the truncated wedge shape. The depicted gel sealing module <NUM> includes first and second opposite sides <NUM>, <NUM> that converge as the first and second opposite sides <NUM>, <NUM> extend from a major end <NUM> to a minor end <NUM> of the main body of the gel sealing module <NUM>. The minor end <NUM> has a concave curvature and the major end <NUM> has a convex curvature. When the gel sealing modules <NUM> are assembled together to form the gel sealing block <NUM>, the opposite sides <NUM>, <NUM> of adjacent gel sealing modules <NUM> seal relative to one another. Additionally, the major ends <NUM> cooperate to define the radially outwardly facing gel surface <NUM> that seals against the radially inwardly facing surface <NUM> of the gel-block mounting sleeve <NUM>. The minor ends <NUM> cooperate to define a radially inwardly facing surface adapted to seal against a component of the gel sealing unit (e.g., an outer circumferential surface of a structure such as the mounting sleeve <NUM> shown at <FIG> and <FIG>.

In certain examples, the gel sealing modules <NUM> can be individually and separately removable from between inner and outer pressurization structures <NUM>, <NUM> of the actuator <NUM>. Preferably at least a plurality of the removable gel sealing modules <NUM> include cable sealing modules each defining at least one cable port <NUM>. In one example, at least some of the gel sealing modules <NUM> include at least first and second gel portions <NUM>, <NUM> (e.g., volumes of gel) that meet at a separable interface <NUM> at which at least one cable port <NUM> is defined. The first and second gel portions <NUM>, <NUM> are capable of being separated from one another when the cable sealing module <NUM> is not mounted between the inner and outer pressurization structures <NUM>, <NUM> to allow a cable to be laterally inserted into the cable port <NUM> (i.e., the gel sealing modules can have a wrap-around design). The gel sealing module <NUM> can also include end caps <NUM> between which an axis <NUM> the cable port <NUM> extends. The end caps <NUM> can function to provide gel containment when the gel block is pressurized during sealing. The end cap can include flexible fingers <NUM> at the cable ports <NUM> to provide gel containment around a cable and to allow the end caps to accommodate cables having a range of different diameters. The fingers <NUM> can flex open to accommodate a cable in the cable port <NUM>. The end caps <NUM> can include first end cap portions 209a attached to opposite ends of the first gel portion <NUM> and second end cap portions 209b attached to opposite ends of the second gel portion <NUM>. The first and second end cap portions 209a, 209b are carried with their respective first and second gel portions <NUM>, <NUM> when the gel portions <NUM>, <NUM> are separated from one another. Thus, the first and second end cap portions 209a, 209b separate from one another when the first and second gel portions <NUM>, <NUM> are separated from one another. Used herein, "separated" means that at least portions can be moved apart from one. In the case where separate parts of a gel module are connected by a flexible means such as a living hinge, the separate parts can be separated from one another by flexing the living hinge and are the parts are considered separated from one another even though the parts are still connected by the living hinge.

In a preferred example, the end caps <NUM> include snap-fit structures for coupling in a snap-fit connection interface with the inner and outer pressurization structures <NUM>, <NUM>. In one example, the snap-fit structures include axially extending pins <NUM> (e.g., posts) with enlarged heads <NUM> that are received within snap-fit collars <NUM> carried with the inner and outer pressurization structures <NUM>, <NUM>. The pins <NUM> can be parallel to the cable port axis <NUM>. In other examples, the collars <NUM> can be provided on the sealing modules and the pins <NUM> can be provided on the pressurization structure <NUM>, <NUM>. The collars <NUM> are configured to elastically flex open to receive the enlarged heads <NUM> and then snap back toward a closed position once the heads <NUM> have passed therein to provide a snap-fit coupling. The collars <NUM> can include internal pockets or receptacles for receiving the heads <NUM>. The snap fit components are snapped together by motion in an axial direction (e.g., along the cable ports and a central axis of the actuator and the enclosure). In other examples, other types of snap-fit interfaces such as flexible latches, tabs, cantilevers, and the like can be used. The snap-fit configuration provide a means for the inner and outer pressurization structures <NUM>, <NUM> to apply tension to the gel block <NUM> when the gel block is mounted in the actuator <NUM>. When the inner and outer pressurization structures <NUM>, <NUM> are forced apart from one another by a trigger arrangement of the actuator <NUM>, tensile load is applied to the gel block <NUM> through the snap-fit interfaces. While snap-fit interface are preferred, other types of interfaces capable of transferring tensile load can also be used. For example, the end caps and the pressurization structures can have mating rails and channels that slide together (e.g., in a radial direction) or like structures.

<FIG> and <FIG> show an alternative gel sealing unit <NUM> having the same configuration as the gel sealing unit <NUM> except gel sealing modules are attached to the actuation structure by an interface arrangement including intermating rails and grooves capable of transferring tensile loads from the actuator to the gel sealing modules. As shown at <FIG> and <FIG>, the depicted gel sealing module <NUM> includes end caps with rails <NUM> that fit within corresponding channels <NUM> defined by inner and outer pressurization structures <NUM>, <NUM>. The gel sealing modules <NUM> are loaded between the pressurization structures <NUM>, <NUM> by inserting the gel sealing modules <NUM> inwardly in a radial direction toward a central axis of the gel sealing unit <NUM>. The rails <NUM> and the channels <NUM> slide relative to one another as the gel sealing modules <NUM> are loaded between the pressurization structures <NUM>, <NUM>. Each of the gel sealing modules <NUM> also includes two flexible latches <NUM> for preventing the gel sealing modules <NUM> from being radially withdrawn from between the pressurization structures <NUM>, <NUM>. In certain examples, the flexible latches <NUM> are integrally formed with end caps of the gel sealing modules <NUM>. In certain examples, the flexible latches <NUM> have a cantilevered configuration. In certain examples, the flexible latches <NUM> are integrated with the end caps of the gel sealing modules <NUM> that are positioned adjacent to the inner pressurization structure <NUM>. The inner pressurization structure <NUM> can include catches <NUM> adjacent the outer perimeter of the inner pressurization structure <NUM> that are adapted to engage with the flexible latches <NUM> when the gel sealing modules <NUM> are fully inserted into the gel sealing unit <NUM>. In other examples, the flexible latches can be provided at the end caps corresponding to the outer pressurization structure <NUM> and the outer pressurization structure <NUM> can include corresponding catches. By flexing the flexible latches <NUM> toward one another, the flexible latches <NUM> can disengage from their corresponding catches <NUM> to allow the gel sealing modules <NUM> to be removed from the gel sealing unit. In certain examples, the flexible latches <NUM> include outward projections that can be grasped between a technicians thumb and forefinger to allow the flexible latches <NUM> to be pressed together. In certain examples, the flexible latches <NUM> are located at the major ends of the gel sealing modules adjacent to the opposite sides of the gel sealing modules. Preferably, the latches of a given one of the gel sealing modules can be manually pressed toward each other to disengage the latches <NUM> from the catches <NUM>.

In use of the gel sealing unit, gel sealing modules are selected to populate the gel block based on the types and sizes of cables desired to be routed into the enclosure through the gel block. When a cable of a particular type or size is identified for sealing, a gel sealing module compatible with the cable is selected and a cable anchoring unit compatible with the cable and the selected gel sealing module is also selected. The inside radial portion (e.g., gel portion <NUM>) of the gel sealing module is then snapped into the actuator between the pressurization structures, which are in an open orientation in which the pressurization structures are axially far enough apart to allow for insertion of the inside radial portion. The cable is then attached to the selected cable anchor which is then secured to the anchoring bracket <NUM>. An optical fiber or fibers of the cable can extend beyond the anchoring location and can be contained in a protective tube (e.g., a buffer tube of the cable, a furcation tube, etc.) that is routed to the tube holder adjacent the fiber manager. The tube terminates at the tube holder and the optical fiber(s) continues to the fiber manager where the fibers or fibers can be routed to trays of the fiber manager. The bend radius limiters can be used to transition the optical fibers from the tubes that terminate at the tube holder to a routing path that extends up the tower of the fiber manager to a tray. Once the cable has been anchored to the bracket, the cable can be laid into the inside radial portion of the gel sealing module which already had been snapped between the pressurization structures. The outside radial portion (e.g., portion <NUM>) of the gel sealing module is then snapped between the pressurization structures with the cable captured in a cable port defined between the inside and outside radial portions of the gel sealing module. This process is repeated until the full gel block <NUM> has been installed in the actuator <NUM>. Thereafter, the telecommunications assembly <NUM> can be inserted into the base <NUM> through the outer end <NUM> of the base <NUM> and the bracket <NUM> is locked in the base to anchor the assembly <NUM> in a position where the gel sealing block <NUM> is in the base <NUM>. The actuator <NUM> is then actuated to pressurize the gel block within the base <NUM> to provide cable sealing and peripheral sealing. To remove the assembly <NUM>, the actuator is used to tension the gel block, the bracket <NUM> is unlocked from the base, and the assembly <NUM> is pulled out through the end <NUM> of the base <NUM>.

Referring to <FIG>, the gel sealing unit <NUM> can include the gel sealing block <NUM> and the actuator <NUM> capable of applying compressive load to the gel sealing block <NUM> to provide or enhance sealing. The actuator includes the inner and outer pressurizations structures <NUM>, <NUM> between which the gel sealing block <NUM> mounts. The pressurization structures <NUM>, <NUM> can have a spoked configuration with radial arms on which the snap-fit collars <NUM> are positioned (see <FIG>). The actuator <NUM> includes a trigger arrangement <NUM> (see <FIG>) for transferring compressive load to the pressurization structures <NUM>, <NUM>. As best shown at <FIG>, the trigger arrangement <NUM> includes a threaded first shaft <NUM> that extends along a first axis <NUM> along which the outer pressurization structure <NUM> can axially move to apply the compressive load to the gel sealing block <NUM>. The trigger arrangement <NUM> includes a nut <NUM> threaded on the shaft <NUM>. The nut <NUM> is rotatable about the first axis <NUM> relative to the outer pressurization structure <NUM> and is axially fixed relative to the outer pressurization structure <NUM>. By axially fixed, it is generally meant that the parts that are axially fixed relative to one another are coupled or connected so as to generally move axially together as a unit. In one example, an outer annular grove <NUM> surrounding the nut <NUM> is snapped into a snap-fit sleeve <NUM> (see <FIG>) of the outer pressurization structure <NUM> to axially lock or fix the nut <NUM> in place relative to the outer pressurization structure while allowing the nut to turn/rotate relative to the outer pressurization structure <NUM>. The nut <NUM> is integrated or coupled to a handle <NUM> for turning the nut <NUM> relative to the outer pressurization structure <NUM> and the threaded first shaft <NUM>.

The trigger arrangement <NUM> also includes a pressurization structure mount <NUM> for mounting the inner pressurization structure <NUM>. The mount <NUM> can include a mounting sleeve <NUM> having an outer circumferential surface against which a radially inwardly facing gel surface of the gel block <NUM> seals when pressurized. The inner pressurization structure <NUM> includes a plurality of separate pressurization sections <NUM> that are independently slidable relative to the mounting sleeve <NUM> along the first axis <NUM>. The pressurization sections <NUM> can include webs <NUM> that slide within slots <NUM> at an upper end of the mounting sleeve <NUM>. The slots <NUM> have closed lower ends <NUM> that engage the webs <NUM> function as positive stops when the trigger arrangement <NUM> is used to tension the gel block <NUM>. The pressurization sections <NUM> each include two arms carrying collars <NUM> for snapping together with the upper pins <NUM> of the gel modules. The trigger arrangement <NUM> including separate springs <NUM> corresponding to each of the separate pressurization sections <NUM>. The spring <NUM> are captured between first spring stops <NUM> on the pressurizations sections <NUM> and second spring stops <NUM> on the anchor bracket <NUM> (see <FIG>). The anchor bracket <NUM> is fixed to a top end of the mounting sleeve <NUM> by fasteners or other means. The spring <NUM> fit within vertical bores <NUM> defined by the pressurization structures <NUM>.

The threaded first shaft <NUM> has an upper end <NUM> that is axially and rotatably fixed relative to the mounting sleeve <NUM>. In one example, the sleeve <NUM> defines a T-shaped slot <NUM> that receives a T-shaped flange <NUM> at the upper end <NUM> of the shaft <NUM>. The flange <NUM> can snap within the slot <NUM>. The gel sealing block <NUM> is coupled to the inner and outer pressurization structures <NUM>, <NUM> by a coupling that allows the inner and outer pressurization structures to apply a tension load to the gel sealing block (e.g., the snap-fit interface described above or other type of interface). The gel sealing block <NUM> includes the plurality of individual gel sealing modules <NUM> that cooperate to define the gel block <NUM> with each gel sealing module <NUM> corresponding to one of the separate pressurization sections <NUM> of the inner pressurization structure <NUM>.

When the nut <NUM> is threaded (e.g., via the handle <NUM>) in a first rotational direction about threaded first shaft <NUM> the nut <NUM> and outer pressurization structure <NUM> move axially in a first direction along the threaded first shaft <NUM> toward the inner pressurization structure <NUM> causing the gel block <NUM> to be forced against the inner pressurization structure <NUM> and the inner pressurization structure <NUM> to be forced against the springs <NUM> causing the springs <NUM> to be compressed and spring compression load to be axially applied to the gel sealing block <NUM>. Thus the gel block is spring pressurized and cause to flow/deform to fill any voids within the base and to effectively seal about any cables in the cable ports and to form an outer peripheral seal with the base <NUM> and an inner seal around the mounting sleeve <NUM>. To de-pressurize the gel block <NUM>, the nut <NUM> is threaded in a second rotational direction about the first shaft <NUM> the nut <NUM> and the outer pressurization structure <NUM> move axially in a second direction along the threaded first shaft <NUM> away from the inner pressurization structure <NUM> causing the gel block <NUM> and the inner pressurization structure <NUM> to be pulled away from springs <NUM> such that the spring de-compress. Once the springs <NUM> have decompressed, the outer surface of the gel block <NUM> may still be strongly bonded to the inner surface of the base <NUM>. To break or loosen this bond, the nut <NUM> can continue to be rotated on the shaft <NUM> in the second direction causing the inner pressurization structure to be pulled into engagement with a positive stop (e.g., the webs <NUM> of the inner pressurization structures contact the bottom ends of the slots <NUM>) of the mounting sleeve <NUM> causing the inner and outer pressurization structure <NUM>, <NUM> to be positively pulled apart as the outer pressurization structure <NUM> and the nut <NUM> continue to move in the second direction such that tension is applied to the gel sealing block through the snap-fit interface. Tensioning of the gel block can cause it to constrict thereby loosening adhesion with the base. The sealing unit <NUM> can then be removed from the base more easily.

The bracket <NUM> is carried with the sealing unit <NUM> and the remainder of the telecommunications assembly unit <NUM>. When the unit <NUM> is inserted though the second end <NUM> of the base <NUM>, the bracket moves through the base <NUM> and is preferably oriented in a first rotational position relative to the base. The base includes a bracket connection interface <NUM> near the first end of the base. When the bracket <NUM> reaches the bracket connection interface <NUM>, the unit can be rotated relative to a central axis of the base to move the bracket <NUM> from the first rotational position to a second rotational position in which the bracket <NUM> engages the connection interface <NUM> and is axially fixed relative to the base <NUM>. In the second rotational position, portions of the bracket <NUM> can be captured between upper and lower flanges or other retainers coupled to the base. <FIG> shows the bracket <NUM> in the second rotational position with a fastener such as a screw <NUM> being used to prevent the bracket from rotating from the second rotational position back to the first rotational position. <FIG> shows the bracket <NUM> retained in the second rotational position by a snap fit <NUM>. <FIG> shows the bracket <NUM> retained in the second rotational position by an axial slide latch <NUM>. <FIG> shows a slide latch <NUM> that axially retains the bracket <NUM> regardless of its rotational position (this example does not require twist to lock since the latch secures the bracket against axial movement relative to the base). <FIG> shows the bracket <NUM> retained in the second rotational position by another axial slide latch <NUM>. <FIG> shows the bracket <NUM> retained in the second rotational position by a pivotal latch <NUM>. <FIG> shows the bracket <NUM> retained in the second rotational position by another pivotal latch <NUM>. <FIG> shows the bracket <NUM> retained in the second rotational position by a resilient clip <NUM>.

<FIG> show an example assembly error prevention arrangement <NUM> (i.e., a poka yoke arrangement) for preventing the dome <NUM> from being coupled to the first end <NUM> of the base <NUM> before the anchoring bracket <NUM> suitably secured within the base <NUM>. As shown at <FIG>, the first end <NUM> of the base <NUM> defines a circumferential groove <NUM> for receiving a circumferential edge of the open end of the dome <NUM>. Also, the base <NUM> includes a connection interface <NUM> in the form of a plurality of circumferential bracket anchoring slots <NUM> for axially anchoring the anchoring bracket <NUM> relative to the base <NUM> when the anchoring bracket <NUM> is in the second rotational position. The slots <NUM> are circumferentially spaced about the interior of the base <NUM>. It will be appreciated that the anchoring bracket <NUM> includes a plurality of radial arms, and that end portions of the radial arms slide within the bracket anchoring slots <NUM> when the bracket <NUM> is rotated to the second rotational position. The bracket anchoring slots <NUM> include open ends and closed ends. When the anchoring bracket <NUM> is rotated from the first rotational position to the second rotational position, the end portions of the radial arms of the anchoring bracket <NUM> enter the bracket anchoring slots <NUM> through the open ends of the slots. The closed ends of the bracket anchoring slots <NUM> can function as positive stops for stopping rotation of the anchoring bracket when the anchoring bracket <NUM> reaches the second rotational position. When the bracket <NUM> is in the second rotational position, the end portions of the radial arms of the bracket are captured between upper and lower surfaces which define the bracket anchoring slots <NUM> so as to prevent axial movement of the bracket <NUM> relative to the base <NUM>.

The assembly error prevention arrangement <NUM> includes a slide member <NUM> that is slidable relative to the base along a slide orientation <NUM> that extends between the first and second ends <NUM>, <NUM> of the base <NUM>. The slide member <NUM> is slidable along the slide orientation <NUM> (see <FIG> and <FIG>) between a dome-blocking position (see <FIG>, <FIG>, <FIG>, and <FIG>) and an anchor bracket retention position (see <FIG> and <FIG>). The slide member <NUM> prevents the dome <NUM> from being installed at the first end <NUM> of the base <NUM> when the slide member <NUM> is in the dome blocking position. The slide member <NUM> allows the anchor bracket to be rotated from the first rotational position to the second rotational position when the slide member <NUM> is in the dome blocking position. The slide member <NUM> allows the dome <NUM> to be installed at the fist end <NUM> of the base <NUM> when the slide member <NUM> is in the anchor bracket retention position. The slide member <NUM> prevents the anchor bracket from being rotated from the second rotational position to the first rotational position when the slide member <NUM> is in the anchor bracket retention position.

The base <NUM> includes a sidewall <NUM> including a mounting structure <NUM> adjacent the first end <NUM> of the base <NUM> for slidably receiving the slide member <NUM>. The mounting structure <NUM> includes a main receptacle <NUM> for receiving a main body <NUM> of the slide member <NUM>. The mounting structure <NUM> can also include an inner slot <NUM> for receiving a bracket blocking projection <NUM> of the slide member <NUM> and an outer slot <NUM> for receiving a dome blocking projection <NUM> of the slide member <NUM>. The inner and outer slots <NUM>, <NUM> have lengths that extend along the slide orientation <NUM>. The bracket blocking projection <NUM> slides along the inner slot <NUM> and the dome blocking projection <NUM> slides along the outer slot <NUM> as the slide member <NUM> moves between the dome blocking position (see <FIG> and <FIG>) and the bracket retention position (see <FIG> and <FIG>).

Referring to <FIG>, <FIG>, <FIG> and <FIG>, the slide member <NUM> includes a flexible latch <NUM> that engages a catch <NUM> of the mounting structure <NUM> provided inside the base <NUM>. The flexible latch <NUM> engages the catch <NUM> via a snap-fit connection to retain the slide member <NUM> within the receptacle <NUM> while concurrently allowing the slide member <NUM> to slide along the slide orientation <NUM> between the dome blocking position and the bracket retention position.

As indicated above, the first end <NUM> of the base <NUM> defines the circumferential groove <NUM> for receiving an end of the dome <NUM>. As shown at <FIG>, when the slide member <NUM> is in the dome blocking position, the dome blocking projection <NUM> is positioned within the circumferential groove <NUM> so as to provide an obstruction that prevents the bottom end of the dome from being inserted into the groove <NUM>. When the slide member <NUM> is in the bracket retention position of <FIG>, the dome blocking projection <NUM> is recessed relative to the circumferential groove <NUM> such that the circumferential groove <NUM> is not obstructed and the end of the dome <NUM> can readily be inserted therein.

When the bracket <NUM> is in the second rotational position and the slide member <NUM> is in the bracket blocking position (as shown at <FIG>), the bracket blocking projection <NUM> of the slide member <NUM> opposes a stop surface <NUM> of a flange <NUM> of one of the radial arms <NUM> to prevent the anchor bracket <NUM> from being rotated relative to the base <NUM> from the second rotational position to the first rotational position. As shown at <FIG>, when the slide member <NUM> is in the dome blocking position, the bracket blocking projection <NUM> is offset from the flange <NUM> (e.g., positioned above as shown at <FIG>) so as to not interfere with the ability to rotate the bracket <NUM> between the first and second rotational positions. The bracket blocking projection <NUM> can have a lower end having angled surfaces <NUM> that facilitate moving the bracket blocking portion <NUM> past the flange <NUM> when the slide member <NUM> is moved from the dome blocking position to the bracket blocking position.

Referring to <FIG> and <FIG>, the assembly prevention arrangement <NUM> includes a linkage <NUM> which includes both the slide member <NUM> and a pivot link <NUM> pivotally connected to the slide member <NUM> at a pivot axis <NUM>. The pivot link <NUM> includes a main link body <NUM> that pivots about the pivot axis <NUM> between a first pivot position (see <FIG> and <FIG>) and a second pivot position (see <FIG> and <FIG>) as the slide member is moved between the dome blocking position (see <FIG>) and the bracket retention position (see <FIG>). The pivot link <NUM> is in the first pivot position when the slide member <NUM> is in the dome blocking position and the pivot link <NUM> is in the second pivot position when the slide member <NUM> is in the bracket retention position. The main link body <NUM> has a lengthwise axis <NUM> that passes through the pivot axis <NUM>. When the pivot link is in the first pivot position corresponding to the dome blocking position of the slide member <NUM>, the lengthwise axis <NUM> is parallel to the slide orientation <NUM> of the slide member <NUM> such that the pivot link <NUM> prevents the slide member <NUM> from being manually moved along the slide orientation <NUM> by pressing on the slide member <NUM>. In this way, an installer is prevented from pressing the slide member <NUM> down to allow for installation of the dome <NUM> on the base prior to the bracket <NUM> being axially secured within the base <NUM>. The reaction force generated when an installer attempts to press down the slide member <NUM> passes through the pivot axis <NUM> in a direction parallel to the lengthwise axis <NUM> and the slide orientation <NUM>.

Referring still to <FIG>, <FIG>, and <FIG>, the pivot link <NUM> also includes an inwardly projecting pin <NUM>. The pin <NUM> is positioned such that when the anchoring bracket <NUM> is rotated from the first rotational position to the second rotational position, the anchoring bracket contacts the inwardly projecting pin <NUM> causing the pivot link <NUM> to pivot from the first pivot position toward the second pivot position thereby causing the slide member <NUM> to move from the dome blocking position toward the anchor bracket retention position. The flange <NUM> of the arm <NUM> of the anchoring bracket <NUM> engages the inwardly projecting pin <NUM> to initiate movement of the pivot link <NUM> from the first pivot position toward the second pivot position. The bracket blocking projection <NUM> of the slide member <NUM> moves into a position that opposes the stop surface <NUM> of the flange <NUM> after the flange <NUM> has moved past the bracket blocking projection <NUM> as the anchoring bracket <NUM> is rotated from the first rotational position toward the second rotational position. <FIG> shows the bracket blocking projection <NUM> offset from the stop surface <NUM> so as to not obstruct rotational movement of the bracket <NUM>, and <FIG> shows the bracket blocking projection <NUM> in opposition with respect to the stop surface <NUM>. To move the bracket <NUM> from the second rotational position back to the first rotational position, the slide member <NUM> can be manually pulled up and the bracket <NUM> can be rotated from the second rotational position back to the first rotational position. Once the slide member <NUM> has been manually pulled back to the dome blocking position, the pivot link <NUM> retains the slide member <NUM> in the dome blocking position.

Referring to <FIG> and <FIG>, the pivot link <NUM> includes a pivot element <NUM> through which the pivot axis <NUM> extends. The pivot element <NUM> has a polygonal cross-sectional shape. In one example, the polygonal cross-sectional shape is square, but other shapes can be used as well. The slide member <NUM> has a pivot receiver <NUM> that receives the pivot element <NUM>. The pivot receiver <NUM> is best shown at <FIG>. The pivot receiver <NUM> has a polygonal cross-sectional shape that matches the polygonal cross-sectional shape of the pivot element <NUM>. The pivot element <NUM> pivots within the pivot receiver <NUM> when the pivot link <NUM> is pivoted about the pivot axis <NUM>. The pivot receiver <NUM> has a resilient construction that elastically deforms or flexes to accommodate pivotal movement between the pivot element <NUM> and the pivot receiver <NUM>. The matching polygonal cross-sectional shapes of the pivot element <NUM> and the pivot receiver <NUM> combined with the resilient, elastic construction of the pivot receiver <NUM> require a predetermined force to be applied to the pivot link <NUM> to cause the pivot receiver <NUM> to elastically flex a sufficient amount to allow the pivot link <NUM> to be moved from the first pivot position to the second pivot position and vice versa. The pivot receiver <NUM> retains the pivot link in the first pivot position and the second pivot position until the predetermined force is applied to the linkage so as to overcome the elastic retention force provided by the pivot receiver.

In certain examples, the pivot link <NUM> pivots about <NUM> degrees between the first pivot position and the second pivot position. In certain examples, the pivot element <NUM> and the pivot receiver <NUM> provide an over-the-center biasing arrangement that elastically biases the pivot link <NUM> toward the first pivot position when the pivot link <NUM> is rotationally closer to the first pivot position than the second pivot position and that biases the pivot link <NUM> toward the second pivot position when the pivot link is rotationally closer to the second pivot position than the first pivot position. In the depicted example, the center position coincides with the pivot link having pivoted about <NUM> degrees between the first pivot position and the second pivot position.

<FIG> show one of the cable anchor unit adapters <NUM> for receiving a plurality of cable anchor units <NUM>. The adapter <NUM> includes a rear snap-fit interface <NUM> including a flexible latch <NUM> for engaging a mating interface on the bracket <NUM>. The adapter <NUM> includes receptacles for receiving cable anchors <NUM>. The adapter also include rear reinforcing ribs <NUM> that fit within slots <NUM> defined by the pressurization sections <NUM> of the inner pressurization structure <NUM>.

<FIG> show an example cable anchoring unit <NUM> including a rectangular main body <NUM>, a first cradle <NUM> for clamping a cable jacket with a metal band, a second cradle <NUM> for clamping a cable shield with a metal band, a strength member or conductor anchor <NUM> for wrapping aramid yarn of a cable or for securing a rigid member such as a metal member or a glass reinforced polymer rod. An electrical contact <NUM> is provided at the anchor <NUM> for grounding purposes. The contact is connected to a grounding screw <NUM>. A cable shield secured at the second cradle <NUM> can also be connected to the grounding screw, which is between the cradle <NUM> and the anchor <NUM>. Strap tighteners <NUM> can be provided within the cradles <NUM>, <NUM> for receiving the ends of straps inserted though slits <NUM> in the cradles <NUM>, <NUM>. Fasteners <NUM> secure the ends of the straps in slots <NUM> in the tighteners <NUM>. Fasteners <NUM> move the tighteners downwardly away from the cradles to tighten the straps. The anchoring unit <NUM> can be secured to a bracket or other structure via an intermediate adapter or other structure that may include snap-fit features. <FIG> show an alternative cable anchoring unit which is the same as the cable anchoring unit <NUM>, except a rear side of the main body has been equipped with an integrated snap-fit structure for attaching the cable anchoring unit directly to an anchor bracket or other structure without the need for an adapter. The snap-fit structure can include a snap-fit latch, tab, arm or like structure. The rear interface can also include stabilization ribs that can engage an anchoring bracket or a pressurization structure (e.g., the ribs can fit within slots in the inner pressurization structure such as slots <NUM> defined by the pressurization sections <NUM> of the inner pressurization structure <NUM>).

<FIG> show a configuration where cable anchoring units or cable anchoring unit adapters can be mounted directly to the anchoring bracket at a position completely above the gel sealing unit <NUM>. Preferably, the cable anchoring unit adapters and/or the anchoring units do not engage any portion of the gel sealing unit <NUM> and are instead secured to and stabilized by the bracket alone. In a preferred example, the cable anchoring units and/or the cable anchoring unit adapters are secured to a hub of the bracket by an interface that includes: a) a groove and rail configuration for stabilizing the cable anchoring device relative to the bracket and for allowing the cable anchoring device to be loaded into the bracket by radially inserting the cable anchoring device into the bracket; and b) a snap-fit connection for releasably retaining the cable anchoring device in an inserted position relative to the bracket. As shown at <FIG>, a bracket <NUM> is shown having a hub <NUM> and a plurality of radial arms <NUM> that project radially outwardly from the hub <NUM>. The bracket <NUM> also includes a reinforcing ring <NUM> that couples to the arms <NUM> at an intermediate location between the hub <NUM> and outer ends <NUM> of the radial arms <NUM>. Cable anchoring devices <NUM> of the type previously described herein are mounted at an upper side of the hub. The mounting locations are located circumferentially between the arms <NUM> and are provided at the hub <NUM>. Each of the mounting locations can include a snap-fit catch <NUM> and stabilizing grooves <NUM>. As shown at <FIG> and <FIG>, the cable anchoring device <NUM> can include rails <NUM> that fit within the grooves <NUM> for stabilization, and a snap-fit latch <NUM> between the rails <NUM> that fits within the snap-fit catch <NUM>.

<FIG> show another gel sealing unit <NUM> that can be used with an enclosure such as the enclosure of <FIG>. The gel sealing unit <NUM> includes the gel sealing block <NUM> an actuator <NUM> capable of applying compressive load to the gel sealing block during sealing. The actuator <NUM> includes inner and outer pressurizations structures <NUM>, <NUM> between which the gel sealing block <NUM> mounts. The actuator <NUM> includes a trigger arrangement <NUM> for transferring compressive load to the pressurization structures. The trigger arrangement <NUM> includes a threaded first shaft <NUM> that extends along a first axis <NUM> along which the outer pressurization structure <NUM> can axially move to apply the compressive load to the gel sealing block <NUM>. The threaded first shaft <NUM> including a head <NUM> that mounts within a pocket <NUM> defined by the inner pressurization structure <NUM>. The head <NUM> is axially slidable within the pocket <NUM> along the first axis <NUM> relative to the inner pressurization structure <NUM>, but is prevented from rotating relative to the inner pressurization structure <NUM> about the first axis <NUM> (e.g., by one or more opposing flats or other ant-rotation features). The trigger arrangement <NUM> also including a spring <NUM> mounted on the threaded first shaft <NUM> and captured between the head <NUM> of the threaded first shaft <NUM> and a spring stop <NUM> that is axially fixed relative to the inner pressurization structure <NUM>. The threaded first shaft <NUM> extends through the spring stop <NUM> and is rotatable relative to the spring stop <NUM> without threadingly engaging the spring stop <NUM>.

The trigger arrangement <NUM> also includes a nut <NUM> threaded on the threaded first shaft <NUM>. The nut <NUM> is rotatable relative to the outer pressurization structure <NUM> while also being axially fixed relative to the outer pressurization structure <NUM> such that the outer pressurization structure <NUM> is carried with the nut <NUM> axially along the first axis <NUM> when the nut <NUM> is threaded on the threaded first shaft <NUM>. The trigger arrangement <NUM> further including a first bevel gear <NUM> integrated with or coupled to the nut <NUM>. The trigger arrangement <NUM> also including a handle <NUM> mounted on a second shaft <NUM> that extends along a second axis <NUM> angled relative to the first axis <NUM>. The second shaft <NUM> is coupled to a second bevel gear <NUM> that intermeshes with the first bevel gear <NUM> such that when the handle <NUM> is turned about the second axis <NUM> the second bevel gear <NUM> turns the nut <NUM> about the threaded first shaft <NUM> causing axial movement of the nut <NUM> and the outer pressurization structure <NUM> relative to the first threaded shaft <NUM>.

When the nut <NUM> is threaded in a first rotational direction about the shaft <NUM>, the shaft <NUM> is moved axially in a first direction along the first axis <NUM> relative to the nut <NUM> and the outer pressurization structure <NUM> causing the head <NUM> of the shaft <NUM> to slide axially within the pocket <NUM> of the inner pressurization structure <NUM> in the first direction along the first axis <NUM> toward the spring stop <NUM> causing the spring <NUM> to be compressed between the head <NUM> and the spring stop <NUM> which causes the threaded first shaft <NUM> to be placed in tension such that spring compression load is axially applied to the gel sealing block <NUM> between the inner and outer pressurization structures <NUM>, <NUM>. The angled configuration of the handle allows the handle to be readily accessed even if the gel block is densely packed with cables.

The gel sealing block <NUM> is preferably coupled to the inner and outer pressurization structures <NUM>, <NUM> by a coupling of the type described above that allows the inner and outer pressurization structures <NUM>, <NUM> to apply a tension load to the gel sealing block <NUM>. When the nut <NUM> is threaded in a second rotational direction about the shaft <NUM>, the shaft <NUM> is moved axially in a second direction along the first axis <NUM> relative to the nut <NUM> and the outer pressurizations structure <NUM> causing the head <NUM> of the shaft <NUM> to slide axially within the pocket <NUM> of the inner pressurization structure <NUM> in the second direction along the first axis <NUM> away from the spring stop <NUM> as the spring is de-compressed. Continued threading of the nut <NUM> in the second direction causes the head <NUM> to engage a positive stop (e.g., a blind end of the pocket <NUM>) of the inner pressurization structure <NUM> thereby causing the inner and outer pressurization structures <NUM>, <NUM> to be positively moved apart by the trigger arrangement <NUM> such that tension is applied to the gel sealing block <NUM>.

Claim 1:
An enclosure (<NUM>) comprising:
a housing (<NUM>) including a gel-block mounting sleeve (<NUM>);
a gel sealing unit (<NUM>, <NUM>) including:
a gel sealing block (<NUM>) that mounts within the gel-block mounting sleeve (<NUM>); and
an actuator (<NUM>) adapted to apply compressive load to the gel sealing block (<NUM>) during sealing, and adapted to apply tensile load to the gel sealing block (<NUM>) to cause the gel sealing block (<NUM>) to radially constrict such that adhesion between an outer surface of the gel sealing block (<NUM>) and an inner surface of the gel-block mounting sleeve (<NUM>) is broken or weakened;
wherein the actuator (<NUM>) includes at least one spring (<NUM>) for applying the compressive load to the gel sealing block in the form of compressive spring pressure, wherein the actuator (<NUM>) includes pressurization structures (<NUM>) between which the gel sealing block (<NUM>) mounts, wherein the gel sealing block (<NUM>) is pressurized between the pressurization structures (<NUM>) during sealing, wherein the gel sealing block (<NUM>) is coupled to the pressurization structures (<NUM>) by a coupling interface that allows the pressurization structures to apply tension to the gel sealing block (<NUM>) prior to removal of the gel sealing block (<NUM>) from the gel-block mounting sleeve (<NUM>), and wherein during tensioning positioning of the pressurization structures (<NUM>) is absolutely controlled by a trigger arrangement (<NUM>) of the actuator (<NUM>) without influence from the at least one spring (<NUM>).