Optical fiber box

Abstract

A fiber optic cassette is provided that includes a main body including a pair of side walls and an end wall extending between the pair of side walls. The adapter wall is positioned between the sidewalls of the body. The adapter wall is positioned distally of the end wall along the length. A first operable end of the adapter wall extends from an exterior of the main body. The second operable end of the adapter wall extends into the interior of the main body. The cover is disposed on the main body. The cover includes a channel wall at which a routing channel extends from a first cable opening at the first end and a second cable opening at the second end. The deployment channel extends to a pass-through opening that extends through the cover to a slack storage area formed at the main body.

Description

[0001] Priority declaration

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 522,556, filed on June 22, 2023, entitled “OPTICAL FIBER SPLICE AND CONNECTION CASSETTE,” and U.S. Provisional Patent Application No. 63 / 509,621, filed on June 22, 2023, entitled “OPTICAL FIBER SPLICE AND CONNECTION FASTENER,” the disclosures of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present disclosure relates generally to fiber optic telecommunication boxes. Background Art

[0004] A common scenario in fiber optic telecommunications is to make optical connection points that transition from fiber optic cables to fiber optic connections within a module within a modular patch panel installed into a data rack within a data center. However, when splicing fiber pigtails to fiber optic cables within a module, available space is limited and prohibits providing fiber management, cable tie / installation points, and cable routing from the front or rear of the box. The lack of space makes handling fibers and performing splices difficult and time consuming, which can limit the connection points made, greatly increase costs, or potentially negatively impact the quality of the connection.

[0005] Existing solutions often require access to the rear of the data rack and may not be adequate to perform splicing operations from the front of the data rack. Typically, a splice box will share its fiber storage area between internal and external cable fibers, making splicing more difficult and creating the risk of damaging the fibers when re-accessing the module to perform upgrades or troubleshooting.

[0006] It would be advantageous and beneficial to have a fiber optic cabinet and data rack that addresses one or more of the above-identified problems. Summary of the invention

[0007] Aspects and advantages of the invention will be set forth in part in the following description, or may be understood from the description, or may be learned through practice of the invention.

[0008] One aspect of the present disclosure relates to a fiber optic box, which includes a main body, the main body including a pair of side walls and an end wall extending between the pair of side walls. An adapter wall is positioned between the side walls of the main body. The adapter wall is positioned distal to the end wall along the length. A first operable end of the adapter wall extends from the exterior of the main body. A second operable end of the adapter wall extends to the interior of the main body. A cover is disposed on the main body. The cover includes a channel wall at which a routing channel extends from a first cable opening at the first end and a second cable opening at the second end. The routing channel extends to a through opening that extends through the cover to a slack storage area formed at the main body.

[0009] Another aspect of the present disclosure relates to a fiber optic box, which includes a main body, the main body including a pair of side walls extending along the length and an end wall extending between the pair of side walls along the width. The side walls and the end walls each extend along the height. An adapter wall is positioned between the side walls of the main body. The adapter wall is positioned distally of the end wall along the length. A first operable end of the adapter wall extends from the exterior of the main body. A second operable end of the adapter wall extends to the interior of the main body. A cover is disposed on the main body. The cover includes a channel wall at which a routing channel extends from a cable opening at the first end or the second end. The routing channel extends to a through opening that extends through the cover to a slack storage area formed at the main body.

[0010] These and other features, aspects and advantages of the present invention will be better understood with reference to the following description and appended claims.The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] A full and enabling disclosure of the present invention, including the best mode thereof, to one of ordinary skill in the art is set forth in the specification with reference to the accompanying drawings, in which:

[0012] Figure 1 A perspective view of an embodiment of a telecommunications box according to aspects of the present disclosure is provided;

[0013] Figure 2 A perspective view of an embodiment of a telecommunications box according to aspects of the present disclosure is provided, viewing the interior volume;

[0014] Figure 3 A perspective view of an embodiment of a telecommunications box with a cover removed according to aspects of the present disclosure is provided;

[0015] Figure 4 A perspective view of an embodiment of a telecommunications box with a cover removed according to aspects of the present disclosure is provided;

[0016] Figure 5 A perspective view of an embodiment of a telecommunications box according to aspects of the present disclosure is provided, depicting a first side;

[0017] Figure 6 According to aspects of the present disclosure, there is provided Figure 5 A perspective view of an embodiment of a telecommunications box depicting the second side;

[0018] Figure 7 According to aspects of the present disclosure, there is provided Figure 5 A perspective view of an embodiment of a telecommunications box;

[0019] Figure 8 According to aspects of the present disclosure, there is provided Figure 5 A perspective view of an embodiment of a telecommunications box;

[0020] Fig. 9 According to aspects of the present disclosure, there is provided Figure 5 A perspective view of an embodiment of a telecommunications box;

[0021] Fig.10 A perspective view of an embodiment of a cover for a telecommunications box according to aspects of the present disclosure is provided;

[0022] Fig.11 A perspective view of an interior view of an embodiment of a telecommunications box according to aspects of the present disclosure is provided;

[0023] Fig.12 A perspective view of an interior view of an embodiment of a telecommunications box according to aspects of the present disclosure is provided;

[0024] Fig.13A Depicted are steps of a method for assembling a cable to a box according to aspects of the present disclosure;

[0025] Fig. 13B Depicted are steps of a method for assembling a cable to a box according to aspects of the present disclosure;

[0026] Fig. 13C Depicted are steps of a method for assembling a cable to a box according to aspects of the present disclosure;

[0027] Fig.13D Depicted are steps of a method for assembling a cable to a box according to aspects of the present disclosure;

[0028] Fig.13E Depicted are steps of a method for assembling a cable to a box according to aspects of the present disclosure;

[0029] Fig.14 Depicted are exemplary methods in embodiments for routing cables to a box according to aspects of the present disclosure;

[0030] Fig.15 Depicted are exemplary methods in embodiments for routing cables to a box according to aspects of the present disclosure;

[0031] Fig.16 A plan view of an exemplary cable routing at a first volume of an embodiment of a box according to aspects of the present disclosure is provided;

[0032] Fig.17 According to aspects of the present disclosure, there is provided Fig.16 A plan view of an exemplary cable arrangement at a second volume of an embodiment of a box;

[0033] Fig.18A An exemplary ribbon fiber splice holder of an embodiment of a cassette according to aspects of the present disclosure is provided;

[0034] Fig.18B An exemplary discrete fiber splice holder of an embodiment of a cassette according to aspects of the present disclosure is provided;

[0035] Fig.19 depicts an exemplary installation of an embodiment of a cartridge mounted to a data rack chassis according to aspects of the present disclosure;

[0036] Fig. 20A Embodiments of fastener assemblies for fiber optic cables and steps for methods of assembling cables to cassettes according to aspects of the present disclosure are provided;

[0037] Fig. 20B Embodiments of fastener assemblies for fiber optic cables and steps for methods of assembling fiber optic cables to cassettes according to aspects of the present disclosure are provided;

[0038] Fig. 20C Embodiments of fastener assemblies for fiber optic cables and steps for methods of assembling cables to cassettes according to aspects of the present disclosure are provided;

[0039] Fig.20D Embodiments of fastener assemblies for fiber optic cables and steps for methods of assembling cables to cassettes according to aspects of the present disclosure are provided;

[0040] Fig.20E A cross-sectional view of an exemplary embodiment of a fastener assembly at a fiber optic cable is provided;

[0041] Fig.20F A perspective view of an exemplary embodiment of a fastener assembly at a fiber optic cable is provided;

[0042] Fig.21 A top perspective view of an exemplary embodiment of a telecommunications box according to aspects of the present disclosure is provided;

[0043] Fig. 22 According to aspects of the present disclosure, there is provided Fig.21 A bottom perspective view of an exemplary embodiment of a telecommunications box;

[0044] Fig.23 According to aspects of the present disclosure, there is provided Fig.21 A bottom perspective view of an exemplary embodiment of a telecommunications box;

[0045] Fig.24 A front perspective view of an exemplary embodiment of a telecommunications box according to aspects of the present disclosure is provided;

[0046] Fig.25A According to aspects of the present disclosure, there is provided Fig.24 A plan view of an exemplary embodiment of a telecommunications box;

[0047] Fig.25B According to aspects of the present disclosure, there is provided Fig.24 A plan view of an exemplary embodiment of a telecommunications box;

[0048] Fig.26 According to aspects of the present disclosure, there is provided Fig.24 A rear perspective view of an exemplary embodiment of a telecommunications box;

[0049] Fig. 27 According to aspects of the present disclosure, there is provided Fig.26 An exploded rear perspective view of an exemplary embodiment of a telecommunications box;

[0050] Fig.28 According to aspects of the present disclosure, there is provided Fig. 27 An exploded front perspective view of an exemplary embodiment of a telecommunications box;

[0051] Fig.29A According to aspects of the present disclosure, there is provided Fig.24 A detailed view of an exemplary embodiment of a portion of a telecommunications box;

[0052] Fig.29B According to aspects of the present disclosure, there is provided Fig.29A A detailed view of an exemplary embodiment of a telecommunications box including cables extending to the telecommunications box;

[0053] Fig.30 An end view of an adapter wall of an exemplary embodiment of a telecommunications box according to aspects of the present disclosure is provided.

[0054] Repeat use of reference characters in the present specification and drawings is intended to represent same or analogous features or elements of the present invention. DETAILED DESCRIPTION

[0055] Reference will now be made in detail to embodiments of the present invention, one or more of which are illustrated in the accompanying drawings. Each example is provided in a manner to explain the present invention, rather than to limit the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made to the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to encompass these modifications and variations within the scope of the appended claims and their equivalents.

[0056] Embodiments of fiber optic boxes and data racks that solve one or more of the above problems are provided. Embodiments of fiber optic boxes can form fiber optic splices and connection boxes or fiber optic boxes for pre-terminated fibers. Embodiments provided herein include modules that provide protective housings for fiber optic connections. The modules may include fiber optic adapters (e.g., but not limited to LC, SC, MPO, MDC, SN, etc. adapters), internal fiber pigtails, separate internal and external fiber slack storage areas (e.g., located at opposite sides of the box), (one or more) cable strain relief fixing points, and front and rear inlets / outlets for fiber optic cables.

[0057] The cassette 100 includes a main body 110 that is configured to hold a fiber optic adapter wall 130 (eg, a wall 130 including a plurality of fiber optic adapters, see e.g. Fig.30 ) and form a fiber slack storage area 140. The main body 110 includes a pair of side walls 108 extending along a length L. The main body 110 includes an end wall 106 extending between the side walls 108 along a width W. The end wall 106 and the side walls 108 extend along a height H. It should be appreciated that the length L, width W, and height H can extend along mutually orthogonal axes. The length L of the side walls 108 can generally extend greater than the width W of the end walls 106. The height H of the side walls 108 and the end walls 106 can generally extend less than the width W or the length L. The adapter wall 130 extends between the side walls 108 along the width W. The end walls 106 are relatively positioned along the length L of the adapter wall 130.

[0058] In various embodiments, the main body 110 can be formed as a single, unitary component. For example, the main body 110 can be formed as a single, molded main body. The main body 110 can be formed as a single, unitary component using any suitable manufacturing method, such as, but not limited to, molding, extrusion, or additive manufacturing.

[0059] The box 100 includes a removable cover 120 that provides a bottom wall and a top wall at the main body 110. For example, Figure 2A perspective top view of an embodiment of the cassette 100 is depicted. The main body 110 includes a divider wall 118 extending between the side walls 108, the end walls 106, and the adapter wall 130. The divider wall 118 is positioned between covers 120 that form top and bottom walls. For example, the divider wall 118 is positioned along a height H between a top lip 109A and a bottom lip 109B of the side wall 108. The divider wall 118 can be contoured along various heights between the lips 109A, 109B, such as can be configured to vary the height of the volumes 101, 102 formed between the divider wall 118 and the respective covers 120. Reference Figure 3 to Figure 4 , provides a perspective bottom view of an embodiment of a box 100. The embodiment of the box 100 includes a pair of covers 120, such as a bottom cover 120B forming a bottom wall and a top cover 120A forming a top wall. The covers 120 include a symmetrical construction, allowing the same cover construction to be positioned as the top wall and the bottom wall.

[0060] refer to Figures 1 to 4 In various embodiments, the cover 120 includes a latch 122 configured to be selectively attached and released at a latch interface 123 at the side wall 108. The construction of the cover 120 including the latch 122 and the main body 110 including the latch interface 123 can avoid the need for mechanical fasteners (e.g., screws, nuts, bolts, threaded shanks, etc.) to secure the cover to the body. For example, the latch interface 123 can form a groove, a raised wall, or other surface where the latch 122, such as forming a clip, can selectively attach the cover 120 to the side wall 108 or release the cover 120 from the side wall 108.

[0061] Brief reference Fig.10 , provides a perspective view of an embodiment of a cover 120. An embodiment of the cover 120 may include a body having sidewalls 128 and end walls 126 extending along a height H (e.g., corresponding to the sidewalls 108 and the end wall 106, respectively). The cover 120 includes a face 127 extending along a length L and a width W, from which the sidewalls 128 and the end wall 126 extend. The cover 120 may be at least partially formed of a transparent material. For example, the face 127 may be formed of a transparent material such as, but not limited to, a plastic material, thereby allowing a user to view the volumes 101, 102 described below.

[0062] In various other embodiments, the adapter bottom wall 116 extends along the width W between the side walls 108 and partially along the length L, corresponding to the adapter wall 130. For example, the adapter wall 130 can form a row of multiple adapters positioned between a pair of adapter bottom walls 116. For example, referring to Figure 2, the first adapter bottom wall 116A extends between the side walls 108 from a top portion of the side walls 108 (eg, along a top lip of height H). Figure 3 , a second adapter bottom wall 116B extends between the side walls 108 from a bottom portion of the side walls 108 (e.g., along a bottom lip of height H). In various embodiments, a cable entry channel 117 is formed at the adapter bottom wall 116. The channel 117 extends substantially along the length L to allow external cables to enter the interior volume of the box 100, such as further described herein and with reference to Fig.15 In various other embodiments, the channel 117 is formed at the cover 120, such as Figures 21 to 28 , FIG. 29A to FIG. 29B In some embodiments, channel 117 may be at least partially formed at adapter bottom wall 116 and cover 120 and form a cable entry opening leading to routing channel 135 at cover 120, such as further described herein.

[0063] refer to Figure 4 In some embodiments, the adapter bottom wall 116 forms an opening 224 configured to receive a pin 124 extending from the cover 120. The pin 124 may form a locating pin configured to locate the cover 120 relative to the main body 110, thereby positioning the cover 120 as a cap on the interior area extending between the side wall 108, the adapter wall 130, and the end wall 106.

[0064] In various embodiments, the cover 120, side walls 108, end walls 106, adapter wall 130, and divider wall 118 form a volume within which connectors, leads, pre-terminated fibers, and other operable components may be stored and secured. Figure 2 , the first volume 101 is formed between the side wall 108, the end wall 106, the adapter wall 130, the first side of the partition wall 118 and the top cover 120A. Figure 3 , the second volume 102 is formed between the side wall 108, the end wall 106, the adapter wall 130, the second side of the partition wall 118, and the bottom cover 120B.

[0065] In some embodiments, the dividing wall 118 includes a transition wall 105 extending along a height H. The transition wall 105 can form a slope, contoured from near the top lip 109A to near the bottom lip 109B. The transition wall 105 is positioned along the length L between the adapter wall 130 and the fiber slack storage area 140. For example, the storage area 140 can be positioned along the length L near the end wall 106 (e.g., positioned distally of the adapter wall 130 along the length L). The storage area 140 forms an area at the respective volumes 101, 102 where fiber leads, excess fiber, or fiber slack are arranged, positioned, and retained.

[0066] In various embodiments, the transition wall 105 can extend along the height H to position the fiber optic adapter 131 extending into the first volume 101 or the second volume 102. For example, the transition wall 105 can substantially position the inner portion of the fiber optic adapter 131 and the fiber pigtail 194 extending therefrom into the first volume 101 or the second volume 102. For example, referring to Fig.17 , the transition wall 105 can position the fiber pigtail 194 extending from the fiber optic adapter 131 into the second volume 102, and the transition wall 105 can substantially isolate the fiber pigtail 194 from the first volume 101. However, it should be appreciated that an opening can be formed through the partition wall 118 near the transition wall 105, thereby allowing the fiber pigtail to extend between the volumes 101, 102.

[0067] At least for reference Figures 2 to 4 , Figures 6 to 8 and Figure 16 to Figure 17 , an embodiment of the storage area 140 includes an inner wall 132 that partially separates the storage area 140, and the fiber leads can be extended, wrapped, attached or arranged (e.g., in a loop, racetrack, figure 8 configuration, etc.) here, such as Figure 16 to Figure 17 For example, the inner wall 132 may extend from the dividing wall 118 at each of the volumes 101, 102 along a height H. The tabs 142 extend from the inner wall 132, such as parallel to the dividing wall 118, or form hooks, arcs, fingers, or other members where the fiber leads are constrained or restricted to the storage area 140. In some embodiments, the tabs 144 extend from the side walls 108, the end walls 106, or both into the volumes 101, 102.

[0068] refer to Figures 2 to 4 , Fig.23 and Fig. 27In some embodiments, the inner wall 132 forms a channel 136 through which the fiber lead can extend and be arranged. For example, a pair or more of the inner walls 132 can form the channel 136 as a walled raceway or conduit through which the fiber lead can be positioned. In other embodiments, the channel 136 is formed between the inner wall 132 and one or more of the end wall 106, the side wall 108, or both. The tab 142 can extend into the channel 136, such as from one or more inner walls 132 that form the channel 136, or between the inner wall 132 and the end wall 106 or the side wall 108. For example, the tab 142 can extend at least partially parallel to the plane formed by the partition wall 118 or the bottom wall 111 ( Fig. 27 ).

[0069] In various embodiments, the splice holder 150 is selectively positioned at one or both volumes 101 , 102 . FIG. 18A to FIG. 18B , the splice holder 150 may be configured for use with a fiber tape slack portion (e.g., Fig.18A ) or discrete fiber leads (e.g. Fig.18B ). However, it should be appreciated that other configurations of the splice holder 150 may be included at the storage area 140. In some embodiments, such as Figure 2 As depicted, the splice holder 150 is positioned within the storage area 140, such as adjacent the end wall 106. In other embodiments, such as Fig.17 As depicted in , the splice retainer 150 is positioned between the storage area 140 and the adapter wall 130 , such as adjacent to the transition wall 105 .

[0070] Embodiments of the box 100 facilitate and allow for storage and organization of splice protection sleeves for splicing between internal pigtails (e.g., leads 194) and external cables 191. Various embodiments of the box 100 may include a splice holder 150. The splice holder 150 may be configured for single discrete splices or multi-fiber ribbon splices, such as FIG. 18A to FIG. 18B Various embodiments of the main body 110 allow for interchangeable modular splice holders 150 at which single discrete splices or multi-fiber ribbon splices may be received.

[0071] Reference Figure 4 , Figure 6 ,and Figure 11 to Figure 12 as well as Figure 26 to Figure 27A cable entry / exit opening 107 is formed in the side wall 108, the end wall 106, or at a transition between the side wall 108 and the end wall 106 (for example, at a corner connecting the side wall 108 and the end wall 106). Embodiments in which the cable entry / exit opening 107 can be formed extend into the first volume 101 or the second volume 102. The opening 107 is configured to receive the cable 191 into the box 100. The cable 191 may include a protective cover 192 (for example, a strain relief protective cover, a cable bend relief protective cover, or other sleeve, covering, or outer material). The inner wall 134 can be aligned with the extension direction of the cable 191 through the cable entry / exit opening 107 (in Fig.11 The inner wall 134 and the side wall 108 can form a cable entry channel 138, through which the cable 191, the protective cover 192, or both extend into the box 100. In some embodiments, the fastener 188 is selectively positioned at the cable 191 or the protective cover 192 to fasten, tether, or otherwise retain the cable 191 or a portion thereof at the cable entry channel 138.

[0072] In various embodiments, such as Figures 21 to 28 , cable entry passages 117, 138 are formed along length L at first end 91 and second end 92. As described herein, cable openings or passages 117, 138 are formed to allow cables 191 to enter one or more volumes or interior areas formed at main body 110 from the front and / or rear. In various embodiments, such as Figures 21 to 28 , the cover 120 is removably disposed on the main body 110. The cover 120 includes a channel wall 133 at which a routing channel 135 extends from a first cable opening 117 at the first end 91 along a length L, and from a second cable opening 138 at the second end 92 along a length L. The routing channel 135 extends to a through opening 160 extending through the cover 120 to a storage area 140 formed at the main body 110, such as depicted and described in various embodiments herein. In various other embodiments, the routing channel 135 may form a curved or meandering routing channel 135, or in addition, branch out from the cable openings 117, 138 in multiple sections.

[0073] Still see Figures 21 to 28, a storage area 140 is formed at an interior of the main body 110, the interior being formed between a pair of side walls 108, the end wall 106, and the adapter wall 130 at the main body 110. The storage area 140 may generally include an inner wall 132 extending along a height H from the bottom wall 111 toward the cover 120, or additionally a tab 142. In some embodiments, the bottom wall 111 may be integrally formed with the main body 110, such as integrally formed with the side walls 108 and the end walls 106. In other embodiments, the bottom wall 111 may be formed separately, such as a removable cover 120A, 120B, such as depicted and described with respect to various embodiments herein.

[0074] refer to Fig.21 and Figure 23 to Figure 28 In some embodiments, the cover 120 and the main body 110 include fastener openings 125, 129 that are configured to receive fasteners 137 to secure the cover 120 to the main body 110. The fasteners 137 may include any suitable type of mechanical fasteners, such as, but not limited to, screws, bolts, tie rods, or threaded shanks, or snaps, latches, clips, or other desired types of mechanical couplings. The fastener openings 125 at the cover 120 may be configured to receive the fasteners 137 therein or therethrough and extend into the fastener openings 129 at the main body 110. The fastener openings 129 at the main body 110 may be formed by a post, column, or bracket, or other surface configured to receive the fasteners 137. For example, the fastener openings 129 may be formed at the storage area 140 at the main body 110. In yet another example, the inner wall 132 may be arranged to form a channel 136 extending around the fastener openings 129, such as Fig. 27 . In some embodiments, the fastener opening 129 may include threads or other surfaces to receive threads at a threaded fastener. In other embodiments, the fastener opening 129 may include a raised surface to which a snap, latch, clip, etc. may be attached. Various such configurations may facilitate a compact arrangement of the cover 120, channels 135, 136 that may be releasably attached to the main body 110, the cable 193 may extend from the first end 91 or the second end 92 through the channels 135, 136, and may be stored at the internal volume at the main body 110.

[0075] refer to Figures 21 to 28 , and in FIG. 29A to FIG. 29BAs further described in detail at , in various embodiments, the cable retention interface 139 is positioned at the first cable opening 117, the second cable opening 138, or both the first cable opening 117 and the second cable opening 138. The cable retention interface 139 can generally be configured to receive the cable bend relief boot 192 of the cable 191. The cable retention interface 139 can be configured to retain the boot 192 and facilitate routing of the fiber 193 from the boot 192 into the routing channel 135. In some embodiments, the cable retention interface 139 forms an arcuate opening through which the cable 191 or the fiber 193 can extend.

[0076] refer to Fig.12 In some embodiments, the fastener mounting location 186 is formed along the extension direction 195 ( Fig.11 ) extending from the box 100. For example, the fastener mounting location 186 can be formed at the channel 138. The fastener mounting location 186 can form a groove in which the cable 191 (or its fibers) can be received and positioned. The fastener 188 can be positioned around the cable 191 or a portion thereof at the fastener mounting location 186. In some embodiments, the fastener mounting location 186 forms a jacket strip or tie-down point at which fibers from the cable 191 are exposed within the box 100 and are retained to the box 100. In other embodiments, the tie-down point 184 is formed beside the opening 107. For example, the tether point 184 can form a cable strength member tie-down point or other location to which a strength member of the cable 191 is attached.

[0077] refer to Figure 5 , a perspective view of an embodiment of box 100 is provided. Figure 5 The perspective and Fig.16 The plan view provided in FIG. 1 shows a first volume 101 having a first storage area 140A. The first volume 101 can be configured to receive an external cable 191 through a cable entry / exit opening 107. The first storage area 140A can include an inner wall 132 and tabs 142, 144 configured to receive fibers 193 ( Fig.16). The fibers 193 may be routed, wrapped, or otherwise arranged within a storage area 140A formed between the tabs 142, 144 and the divider wall 118 and between the inner wall 132, or also between one or more side walls 108 or end walls 106. The fibers 193 are routed to the splice holder 150 where a splice protection sleeve may be positioned and attached to the box 100. An optical fiber pigtail or splice fiber lead 194 extends from the splice holder 150. A through opening 160 is formed through the divider wall 118 to allow the fiber lead 194 to be led from the first volume 101 to the second volume 102. In some embodiments, the through opening 160 or a portion thereof is formed through the side wall 108 adjacent to the divider wall 118. In other embodiments, such as Figure 3 to Figure 4 As depicted, a portion of the through opening 160 or a portion thereof is formed through the end wall 106 adjacent the dividing wall 118 .

[0078] In some other embodiments, such as Fig.23 As depicted, the inner wall 132 extends from the partition wall 118 from an external volume, such as the bottom wall of the main body 110. The storage area 140 can be formed adjacent to the partition wall 118, and the fiber 193 can be wrapped or wound between the partition wall 118 and the tab 142.

[0079] refer to Figure 6 , a perspective view of an embodiment of box 100 is provided. Figure 6 The perspective and Fig.17 The plan view provided in FIG. 1 shows a second volume 102 having a second storage area 140B. The second volume 102 can be configured to receive a fiber lead 194 (e.g., Figure 5 and Fig.16 ). The fiber leads 194 may be routed, wound, or otherwise arranged between the tabs at the second storage area 140B. The fiber leads 194 may terminate at the fiber adapter 131 at the adapter wall 130. For example, the fiber adapter 131 may extend into the second volume 102 to allow the fiber leads 194 to extend therefrom.

[0080] Figure 5 and Fig.16 Embodiments of the box at may characterize the first volume 101 as a cable tie-down or bonding area. Figure 6 and Fig.17Embodiments of the box 100 at may characterize the second volume 102 as a fiber optic pigtail slack storage and termination area. The box 100 may include a closure panel that is assembled and retained to cover the cable introduction / exit opening 107 when the cable is routed out of the first end 91 of the box 100 (e.g., the front end along the length L). The main body 110 may include a fiber pass-through opening 160 positioned at the second end 92 of the box 100 (e.g., along the rear end of the length L) or along the side of the box 100 (e.g., along the side wall 108). The fiber pass-through opening 160 can allow routing between the first volume 101 that forms an introduction cable slack storage area and the second volume 102 that forms an internal pigtail slack storage area. In various embodiments, the splice holder 150 forms a splice holder positioned in the first volume 101 (e.g., such as Figure 3 to Figure 4 ) or a second volume 102 (e.g., such as Figure 5 to Figure 6 The connector sleeve organization area (depicted at the location).

[0081] Figures 7 and 8 A perspective view of one embodiment of the box 100 is depicted. The cover 120 and the main body 110 can have a release interface 121, such as a button or a clip. The release interface 121 can be configured to allow a user to push to release the cover 120 from the main body 110. For example, the release interface 121 can be located at the adapter bottom wall 116. In various embodiments, the user can push the release interface 121 and translate the cover 120 along the length L toward the end wall 106, thereby removing the pin 124 from the opening 224. The user can translate the cover 120 upward along the height H (i.e., away from the main body 110) to remove the cover 120, thereby removing the latch 122 from the latch interface 123. For example, the latch interface 123 can form a slot extending along the length L, thereby allowing the cover 120 and the latch 122 to translate along the length L.

[0082] Reference FIG. 13A to FIG. 13E and FIG. 20A to FIG. 20F In various embodiments, the outer cable 191 is attached to the main body 101 using a collar 210 (e.g., a threaded collar) extending around the cable 191 (e.g., including the outer jacket 197, the fibers 193, and the strength member 196 (e.g., an aramid or e-glass strength member) and locked in place with a fastener 188 (e.g., a nut or other suitable retainer). The assembly method may include inserting the cable 191 through the collar 210. The method includes locking the cable 191 (e.g., including the fibers 193 and the strength member 196) in place with the fastener 188. The method may include assembling and / or retaining the fastener 188 to the main body 110. For example, the fastener 188 may be attached to the main body 110 at the channel 138 or the fastener mounting location 186.

[0083] refer to Figure 14 to Figure 15 , a plan view of an embodiment of box 100 is provided. Figure 14 to Figure 15 The embodiments described in the foregoing may be constructed as essentially Figure 3 to Figure 4 As depicted and described in the perspective view of the box 100 at. Fig.14 An embodiment is depicted in which the cable 191 extends into the box 100 through the cable entry / exit opening 107, such as described herein. Fig.15 An embodiment is depicted in which the cable 191 extends through the channel 117 into the box 100. For example, Fig.14 A method for routing may be depicted in which the cable 191 extends into the box 100 through the rear end (eg, through the opening 107), and Fig.15 A method for routing can be depicted where the cable 191 extends into the box 100 through the front end (e.g., through the channel 117). The cable 191 can be assembled from the front or rear at the fastener 188, fastener mounting location 186, or channel 138 to accommodate the front or rear entry / exit of the cable 191. In various other embodiments, a cable bend relief boot (e.g., boot 192) can be used to help reduce cable bending stress when the cable 191 exits the box 100.

[0084] It should be appreciated that "rear" and "front" may be relative to a data rack or other box-mounted equipment. Embodiments of box 100 such as described herein may provide equipment that allows front and rear external cable entry to facilitate and improve accessibility, maintenance, routing, and fiber-to-box engagement at the data rack.

[0085] Reference now Fig.19 , a perspective view of an embodiment of a data rack chassis 200 is provided. The chassis 200 is configured to receive and hold one or more cassettes 100. Embodiments of the cassette 100 may be mounted to the chassis 200, and the chassis 200 may be mounted to a data rack. Various embodiments of the chassis 200 and data racks may include industry standard configurations (e.g., 19-inch, 21-inch, 23-inch, etc. industry standard width racks) or configurations of customizable widths. The cassette 100, the chassis 200, or both may include a depressible latch 112 configured to releasably hold the cassette 100 to the chassis 200. The latch 112 may allow the cassette 100 to be inserted into or removed from the chassis 200 from the front end 211 or back side 212 of the chassis 200 or data rack.

[0086] In various embodiments, the latch 112 may be removed or positioned at the chassis 200. The latch 112 may be secured to the side wall 108 at a latch attachment 114 at the outer side of the side wall 108. When the cover 120 is removed from the main body 110, the latch 112 may be secured to the box 100.

[0087] Reference FIG. 20A to FIG. 20F , embodiments of fiber fastener assemblies 300 and methods for cable retention are provided. Fastener assembly 300 includes embodiments of ferrule 210 and fastener 188. In various embodiments, cable 191 includes outer jacket 197, fiber 193, and strength member 196 (e.g., aramid or e-glass strength member), such as may be included in a fiber optic cable assembly. Ferrule 210 includes a threaded shank 250 extending from platform 260 in one or two directions along axial direction A. Platform 260 may form a head, such as a polygon (e.g., a hexagonal or other multi-faceted body). Threaded shank 250 includes a channel 252 formed therethrough to allow cable 191 or a portion thereof to extend through threaded shank 250. Channel 252 may extend between ends 248, 249 of ferrule 210, with ends 248, 249 separated along axial direction A. For example, the collar 210 extending around the outer sheath 197 has a threaded shank 250 extending in the same direction as the extension of the outer sheath 197 along the axial direction A. The first end 248 may form the end through which the cable 191 is led out of the collar 210. The second end 249 may form the end through which the cable 191 enters the collar 210 and then is led out of the first end 248.

[0088] Special References Fig. 20A , the collar 210 includes a slot 254 extending along the axial direction A. The slot 254 can extend from the first end 248, thereby extending from the exit end of the collar 210 to the platform 260. The slot 254 extends through the threaded shank 250, thereby allowing a portion of the cable 191 to extend from the channel 252 inside the collar 210 to the outside of the collar 210. In various embodiments, a method for cable retention includes extending the strength member 196 through the slot 254, thereby allowing the strength member 196 to be spaced or separated from the fibers 193 exiting the channel 252 at the first end 248.

[0089] refer to FIG. 20D to FIG. 20F , an embodiment of the fastener 188 may form a nut including an internally threaded passage 282 configured to engage the external threads of the threaded shank 250 at the collar 210. Fig.20E As depicted in FIG. 1 , threads may be formed on a threaded interface 280 (eg, first end 248) extending from platform 260 to an end of collar 210 (eg, first end 248). Fig.20E ) are combined together.

[0090] In various embodiments, the fastener 188 includes one or more radially extending platforms 286. The radially extending platforms 260, 286 have a flat radially extending interface 284 between the platforms 260, 286, allowing the fastener 188 to be flush or substantially flush with the collar 210 at the platforms 260, 286. In some embodiments, a groove 288 is formed between a pair of the platforms 286, allowing a tab, member, bracket, or other feature at the housing or body to extend into the groove 288 to retain the assembly 300 to the housing or body.

[0091] In various other embodiments, the collar 210 includes a groove 262 formed at the platform 260. The groove 262 extends along the platform 260 at the interface 284, thereby allowing a portion of the cable 191 (such as the strength member 196) to extend into the groove 262, such as Fig.20E . A method for cable retention may include separating the strength member 196 from the fiber 193 and extending the strength member 196 along the groove 262. The method may include screwing the fastener 188 onto the threaded shank 250 to position the platforms 260, 286 flush or substantially flush with each other. The strength member 196 extending through the groove 262 may allow the platforms 260, 286 to abut flush with each other at the interface 284. The curved edge 285 at the platform 260 may further facilitate the extension of a portion of the cable 191 into the groove 262 while preventing shearing of a portion of the cable 191 (e.g., the strength member 196). The method may include separating the strength member 196 from the fiber 193 by passing the strength member 196 through the groove 262 and routing the fiber 193 from the channel 252 at the first end 248. Thus, the groove 262 allows the fiber 193 to be guided out of the channel 252 through the first end 248 and allows the strength member 196 to be guided out of the channel 252 through the groove 262, thereby facilitating separation, handling, joining and access to the fiber 193 and reducing interference from other portions of the cable 191.

[0092] Various other embodiments of the method may include positioning the end 297 of the outer sheath 197 within the channel 252. For example, the user may extend the cable 191 through the channel 252 and out of the end 248, such as from FIG. 20A to FIG. 20B A user may cut or otherwise separate the outer jacket 197 to gain access to the fibers 193, strength members 196, or other portions of the cable 191 within the outer jacket 197, such as in FIG. 20C to FIG. 20D The user positions the fastener 188 around the fiber 193, for example by Fig.20D. The strength member 196 extends around the fastener 188, thereby bypassing the channel 282 through which the fiber 193 extends. The user can reposition the end 297 of the outer sheath 197 (e.g., the end 297 formed by cutting or otherwise accessing the fibers 193 within the outer sheath 197) into the channel 252 at the collar 210, such as FIG. 20D to FIG. 20E In various embodiments, the strength member 196 is positioned through the groove 262 to allow the platforms 260, 286 to abut flush with each other. In other embodiments, the strength member 196 is positioned through the slot 254 to allow the strength member 196 to extend through the first end 248 while allowing separation from the fibers 193 extending from the channel 252 at the first end 248.

[0093] In various embodiments, the protective cover 192 may extend from the second end 249 to the platform 286 at the fastener 188 on the threaded shank 250 of the collar 210, such as Fig.11 Described in.

[0094] In some embodiments, the slot 254 extends from the platform 260 toward both the first end 248 and the second end 249, so that either end 248, 249 can form an exit end of the channel 252. In other embodiments, the groove 262 extends on either or both sides of the platform 260, corresponding to the extension of the slot 254 toward either end 248, 249, thereby allowing either end of the channel 252 to form an exit end.

[0095] Embodiments of assembly 300 provide structures and methods for cable retention, thereby facilitating splicing and other work at cable 191. Embodiments provided herein can mitigate shearing, crushing, stress buildup, or degradation of portions of cable 191. Grooves 262 and slots 254 can facilitate separation of strength member 196 from fiber 193, thereby facilitating work performed at fiber 193. Grooves 262 can particularly improve routing and avoid damage to e-glass strength members or similar structures. Slots 254 can particularly improve routing and avoid damage to aramid fiber strength members or similar structures.

[0096] In the exemplary configuration of box 100, box 100 allows storage capacity of at least 1.5 meters of length on 250 μm diameter fibers on internal fibers, external fibers, or both. For example, box 100 may include a first volume 101 and a second volume 102, which together are approximately 30 cubic inches (about 492 cubic centimeters) or less, or 35 cubic inches (about 574 cubic centimeters) or less, or 42 cubic inches (about 688 cubic centimeters) or less. It should be appreciated that the length, width, and height of exemplary box 100 may correspond to a type of chassis 200 such as described herein. This configuration may provide a desired cable length for repair and maintenance, thereby performing a splicing process, facilitating use and cable length taking, allowing re-engagement, etc. Box 100 is configured to store fibers of desired length and diameter in volume 101, 102, and also store fibers of desired length and diameter in main body 110 and volume 101, 102, allowing multiple boxes 100 to be inserted into chassis 200, such as described herein.

[0097] Embodiments of the fiber optic cassette 100, chassis 200, and data racks depicted and described herein can improve ease of use for a user (e.g., a splicer technician) by providing separate slack storage volumes 101, 102 and facilitating troubleshooting and tracking of fibers when troubleshooting or performing maintenance tasks. Embodiments provided herein allow installation and removal of the cassette 100 without tools, such as to reduce maintenance time and reduce the risk of tool damage to the fibers. Embodiments of the cassette 100 include fasteners 188, such as forming locking nuts, to facilitate reducing cable installation time and allowing cables (e.g., cable 191) to be attached to the cassette 100 without the need for screws, inserts (e.g., molded inserts), or other threaded mechanical fasteners. Fasteners 188, such as forming locking nuts, can save space inside the main body and facilitate easy handling and performance of splicing or maintenance tasks.

[0098] Embodiments of the fiber optic cabinet 100, chassis 200, and data racks may allow front or rear access, such as when the data rack is placed against a wall or other obstacle, to allow for maintenance thereof. Embodiments provided herein facilitate the use of discrete or ribbon splices without changing the configuration (i.e., discrete or ribbon splices may be used at the same module), which may provide multiple configuration options at the same module.

[0099] Further aspects of the invention are provided by one or more of the following embodiments:

[0100] 1. A fiber optic box, the box defining a mutually orthogonal length, width, and height, the box comprising a main body, the main body comprising a pair of side walls extending along the length and an end wall extending between the pair of side walls along the width, the side walls and the end wall each extending along the height, wherein an adapter wall is between the side walls and positioned distally from the end walls along the length, wherein a divider wall extends between the side walls, the end walls, and the adapter wall, wherein the divider wall is positioned between a bottom lip of the side walls and a bottom lip along the height, wherein a first volume is between the side walls, the end walls, and the adapter wall formed at a first side of the dividing wall, and wherein a second volume is formed at the second side of the dividing wall between the side wall, the end wall and the adapter wall, wherein a fiber storage area is positioned at the first volume and the second volume, and wherein a splice holder is positioned at the first volume or the second volume, and wherein a cable opening is formed at or between the end wall and at least one side wall, the cable opening being configured to receive an external cable into the first volume, and wherein a through opening is formed through the dividing wall to allow fiber to be led out of the first volume to the second volume.

[0101] 2. The fiber optic cabinet of any one or more of the clauses herein, wherein the adapter wall comprises a plurality of adapters extending into the second volume.

[0102] 3. The fiber optic cabinet of any one or more of the clauses herein, wherein an adapter bottom wall extends along the width between the side walls and partially along the length, the adapter bottom wall being positioned at or near the adapter wall along the length.

[0103] 4. A fiber optic cassette according to any one or more clauses herein, wherein a cable entry channel is formed at the adapter bottom wall, the cable entry channel extending along the length, the cable entry channel being configured to allow the external cable to enter the first volume.

[0104] 5. The fiber optic cabinet according to any one or more of the clauses herein, wherein the main body comprises a fastener mounting location extending along a direction of extension of the external cable through the cable opening.

[0105] 6. The fiber optic cabinet of any one or more of the clauses herein, wherein the fastener mounting location forms a groove configured to receive the external cable.

[0106] 7. A fiber optic cabinet according to any one or more of the clauses herein, wherein the fastener mounting location is configured to receive a collar extending around the external cable.

[0107] 8. A fiber optic cabinet according to any one or more of the clauses herein, wherein the fastener mounting location is configured to receive a fastener extending around the external cable.

[0108] 9. A fiber optic cabinet according to any one or more of the clauses herein, wherein a tie point is formed beside the cable opening, the tie point being configured to attach a strength member of the external cable to the main body.

[0109] 10. The fiber optic cabinet of any one or more of the clauses herein, wherein the storage area comprises a plurality of tabs extending at least partially parallel to the dividing wall.

[0110] 11. A fiber optic cabinet as described in any one or more of the clauses herein, wherein the storage area includes an inner wall extending from the dividing wall along the height, wherein the tab extends from the inner wall at least partially parallel to the dividing wall.

[0111] 12. The fiber optic cabinet of any one or more of the clauses herein, wherein the through opening is positioned beside the end wall or the side wall.

[0112] 13. A fiber optic cabinet according to any one or more of the clauses herein, comprising a removable cover forming a bottom wall and a top wall on said main body.

[0113] 14. The fiber optic cabinet of any one or more of the clauses herein, the cover comprising a latch configured to be selectively attached and released at a latch interface at the side wall.

[0114] 15. The fiber optic cabinet of any one or more of the clauses herein, the cover comprising a pin configured to extend into an opening at a bottom wall of the adapter.

[0115] 16. The fiber optic cabinet of any one or more of the clauses herein, the cover comprising a face extending along the length and the width, wherein the cover side walls and cover end walls extend from the face along the height.

[0116] 17. The fiber optic cabinet of any one or more of the clauses herein, wherein the face comprises a transparent material.

[0117] 18. The fiber optic cabinet of any one or more of the clauses herein, the side wall comprising a latch attachment at an exterior side of the side wall.

[0118] 19. The fiber optic cabinet of any one or more of the clauses herein, the divider wall comprising a transition wall extending along the height, the transition wall positioned along the length between the adapter wall and the storage area.

[0119] 20. The fiber optic cabinet according to any one or more of the clauses herein, wherein the main body is a single unitary component.

[0120] 21. A fiber optic box, the box defining a mutually orthogonal length, width, and height, the box comprising a main body, the main body comprising a pair of side walls extending along the length and an end wall extending between the pair of side walls along the width, the side walls and the end walls each extending along the height, wherein an adapter wall is positioned between the side walls and distal to the end walls along the length, wherein a divider wall extends between the side walls, the end walls, and the adapter wall, wherein the divider wall is positioned along the height between a top lip and a bottom lip of the side walls, wherein a first volume is formed at a first side of the divider wall between the side walls, the end walls, and the adapter wall, and wherein a second volume is formed between the side walls, the end walls, and the adapter wall. A second side of the dividing wall is formed between the end wall and the adapter wall, wherein a fiber storage area is positioned at the first volume and the second volume, and wherein a splice holder is positioned at the first volume or the second volume, wherein an adapter bottom wall extends along the width between the side walls and partially along the length, the adapter bottom wall is positioned at or near the adapter wall along the length, and wherein a cable entry channel is formed at the adapter bottom wall, the cable entry channel extends along the length, the cable entry channel is configured to allow the external cable to enter the first volume, and wherein a through opening is formed through the dividing wall to allow fibers to be led out from the first volume to the second volume.

[0121] 22. A fiber optic cabinet according to any one or more of the clauses herein, wherein a cable opening is formed at or between the end wall and at least one side wall, the cable opening being configured to receive an external cable into the first volume.

[0122] 23. A fiber optic box, the box defining a mutually orthogonal length, width and height, the box comprising a main body, the main body comprising a pair of side walls extending along the length and an end wall extending between the pair of side walls along the width, the side walls and the end wall each extending along the height; an adapter wall, the adapter wall being positioned between the side walls of the main body, the adapter wall being positioned distally from the end wall along the length, wherein a first operable end of the adapter wall extends from an exterior of the main body, and wherein a second operable end of the adapter wall extends into an interior of the main body; and a cover disposed on the main body, wherein the cover comprises a channel wall, at which a routing channel extends from a first cable opening at a first end and a second cable opening at a second end, the routing channel extending to a through opening, the through opening extending through the cover to a slack storage area formed at the main body.

[0123] 24. A fiber optic box according to any one or more of the clauses herein, wherein the channel walls at the cover extend from the first cable opening and the second cable opening to the through opening, the channel walls forming a routing channel configured to receive cables from the first or second cable opening.

[0124] 25. The fiber optic cabinet of any one or more of the clauses herein, wherein the slack storage area is formed at an interior of the main body between the pair of side walls of the main body, the end wall, and the adapter wall.

[0125] 26. The fiber optic cabinet of any one or more of the clauses herein, the slack storage area comprising an inner wall extending along a height from a bottom wall toward the cover.

[0126] 27. The fiber optic cabinet according to any one or more of the clauses herein, wherein the routing channel forms a curved or meandering routing channel.

[0127] 28. The fiber optic cabinet of any one or more of the clauses herein, the cover and the main body comprising fastener openings into which fasteners can extend to secure the cover to the main body.

[0128] 29. The fiber optic cabinet of any one or more of the clauses herein, wherein the through opening is positioned beside the end wall or the side wall.

[0129] 30. The fiber optic cabinet of any one or more of the clauses herein, the cover comprising a latch configured to be selectively attached and released at a latch interface at the side wall.

[0130] 31. A fiber optic cabinet according to any one or more of the clauses herein, wherein the body is a single unitary component.

[0131] 32. The fiber optic cabinet of any one or more of the clauses herein, wherein a cable retention interface is positioned at the first cable opening, the second cable opening, or both.

[0132] 33. A fiber optic cabinet according to any one or more of the clauses herein, wherein the cable retention interface forms an arcuate opening through which the cable or portion thereof can extend.

[0133] 34. A fiber optic box according to any one or more of the clauses herein, comprising an adapter bottom wall extending along the width between the side walls at the main body, the adapter bottom wall extending at least partially along the length from the adapter wall, wherein the first cable opening is formed at least partially through the adapter bottom wall.

[0134] 35. A fiber optic box, the box defining a mutually orthogonal length, width and height, the box comprising a main body, the main body comprising a pair of side walls extending along the length and an end wall extending between the pair of side walls along the width, the side walls and the end wall each extending along the height; an adapter wall, the adapter wall being positioned between the side walls of the main body, the adapter wall being positioned distally from the end wall along the length, wherein a first operable end of the adapter wall extends from an exterior of the main body, and wherein the second operable end of the adapter wall extends to an interior of the main body; and a cover, the cover being disposed on the main body, wherein the cover comprises a channel wall, a routing channel extending at the channel wall from a cable opening at a first end or a second end, the routing channel extending to a through opening, the through opening extending through the cover to a slack storage area formed at the main body.

[0135] 36. The fiber optic cabinet according to any one or more clauses herein, wherein the channel wall at the cover extends from the cable opening to the through opening, the channel wall forming the routing channel configured to receive the cable from the cable opening.

[0136] 37. A fiber optic cabinet according to any one or more of the clauses herein, wherein the slack storage area is formed at an interior portion of the main body between the pair of side walls at the main body, the end wall and the adapter wall.

[0137] 38. The fiber optic cabinet of any one or more of the clauses herein, the slack storage area comprising an inner wall extending along a height from a bottom wall toward the cover.

[0138] 39. The fiber optic cabinet of any one or more of the clauses herein, the cover and the main body comprising fastener openings through which fasteners can extend to secure the cover to the main body.

[0139] 40. The fiber optic cabinet according to any one or more of the clauses herein, wherein the pass-through opening is positioned beside the end wall or the side wall.

[0140] 41. The fiber optic cabinet of any one or more of the clauses herein, wherein a cable retention interface is positioned at the cable opening.

[0141] 42. A fiber optic box according to any one or more of the clauses herein, comprising an adapter bottom wall extending along a width between the side walls at the main body, the adapter bottom wall extending at least partially along a length from the adapter wall, wherein the first cable opening is formed at least partially through the adapter bottom wall.

[0142] 43. A data rack comprising a chassis and a fiber optic cabinet as described in any one or more of the clauses herein.

[0143] 44. A chassis for a telecommunications data rack, the chassis comprising a fiber optic cabinet as described in any one or more of the clauses herein.

[0144] 45. A chassis for a telecommunications data rack, the chassis comprising a depressible latch configured to releasably retain the chassis to a fiber optic cabinet as described in any one or more of the clauses herein.

[0145] 46. ​​The chassis of any one or more of the clauses herein, wherein the latch is configured to receive the fiber optic box from a front end of the chassis and a rear side of the chassis.

[0146] This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.

Claims

1. A fiber optic box, the box defining mutually orthogonal length, width and height, the box comprising: a main body including a pair of side walls extending along the length and an end wall extending between the pair of side walls along the width, the side walls and the end walls each extending along the height; an adapter wall positioned between the side walls of the main body, the adapter wall positioned along a length distal to the end wall, wherein a first operative end of the adapter wall extends from an exterior of the main body, and wherein a second operative end of the adapter wall extends to an interior of the main body; and A cover is disposed on the main body, wherein the cover includes a channel wall at which a routing channel extends from a first cable opening at a first end and a second cable opening at a second end, the routing channel extending to a through opening extending through the cover to a slack storage area formed at the main body.

2. The optical fiber box according to claim 1, wherein: The channel wall at the cover extends from the first cable opening and the second cable opening to the through opening, the channel wall forming the routing channel configured to receive the cable from the first cable opening or the second cable opening.

3. The optical fiber box according to claim 1, wherein: The slack storage area is formed at an interior of the main body between the pair of side walls at the main body, the end wall, and the adapter wall.

4. The optical fiber box according to claim 3, wherein: The slack storage area includes an inner wall extending along a height from a bottom wall toward the cover.

5. The fiber optic box according to claim 1, wherein: The routing channel forms a curved or meandering routing channel.

6. The fiber optic cassette of claim 1, the cover and the main body comprising fastener openings into which fasteners can extend to secure the cover to the main body.

7. The fiber optic box according to claim 1, wherein: The through opening is positioned beside the end wall or the side wall.

8. The fiber optic cabinet of claim 1, the cover comprising a latch configured to be selectively attached and released at a latch interface at the side wall.

9. The fiber optic box according to claim 1, wherein: The main body is a single unitary component.

10. The fiber optic cabinet of claim 1, wherein: A cable retention interface is positioned at the first cable opening, the second cable opening, or both.

11. The fiber optic cabinet according to claim 10, wherein: The cable retention interface forms an arcuate opening through which the cable or a portion thereof can extend.

12. The fiber optic cabinet of claim 1, comprising: An adapter bottom wall extends along the width at the main body between the side walls, the adapter bottom wall extending at least partially along a length from the adapter wall, wherein the first cable opening is formed at least partially through the adapter bottom wall.

13. A fiber optic box, the box defining a mutually orthogonal length, width, and height, the box comprising: a main body including a pair of side walls extending along the length and an end wall extending between the pair of side walls along the width, the side walls and the end walls each extending along the height; an adapter wall positioned between the side walls of the main body, the adapter wall positioned distally from the end wall along the length, wherein a first operative end of the adapter wall extends from an exterior of the main body, and wherein a second operative end of the adapter wall extends to an interior of the main body; and A cover is disposed on the main body, wherein the cover includes a channel wall at which a routing channel extends from a cable opening at the first end or the second end, the routing channel extending to a through opening extending through the cover to a slack storage area formed at the main body.

14. The fiber optic cabinet of claim 13, wherein: The channel wall at the cover extends from the cable opening to the through opening, the channel wall forming a routing channel configured to receive the cable from the cable opening.

15. The fiber optic cabinet of claim 13, wherein: The slack storage area is formed at an interior of the main body between the pair of side walls at the main body, the end wall, and the adapter wall.

16. The fiber optic cabinet of claim 15, the slack storage area comprising an inner wall extending along a height from a bottom wall toward the cover.

17. The fiber optic cabinet of claim 13, the cover and the main body comprising fastener openings through which fasteners can extend to secure the cover to the main body.

18. The fiber optic cabinet of claim 13, wherein: The through opening is positioned beside the end wall or the side wall.

19. The fiber optic cabinet of claim 13, wherein: The cable retention interface is positioned at the cable opening.

20. The fiber optic cabinet of claim 13, comprising: An adapter bottom wall extends along the width between the side walls at the main body, the adapter bottom wall extending at least partially along a length from the adapter wall, wherein the first cable opening is formed at least partially through the adapter bottom wall.

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