The present disclosure relates to fiber optic enclosure assemblies. More specifically, the present disclosure relates to packaging arrangements for fiber optic enclosure assemblies.
As demand for telecommunications increases, fiber optic networks are being extended in more and more areas. In facilities such as multiple dwelling units, apartments, condominiums, businesses, etc., fiber optic enclosures are used to provide a subscriber access point to the fiber optic network. These fiber optic enclosures are connected to the fiber optic network through subscriber cables connected to a network hub. However, the length of subscriber cable needed between the fiber optic enclosure and the network hub varies depending upon the location of the fiber optic enclosure with respect to the network hub. As a result, there is a need for a fiber optic enclosure that can effectively manage varying lengths of subscriber cable.
An aspect of the present disclosure relates to a fiber optic enclosure assembly. The assembly includes a fiber optic enclosure defining connection locations, a fiber optic cable extending from the connection locations of the fiber optic enclosure, and a covering defining a first axial end and a second axial end, the covering defining a throughhole extending from the first axial end to the second axial end, the throughhole extending along a central longitudinal axis of the covering, the covering defining a first cavity for receiving the fiber optic enclosure. A port extends from the first cavity to an outer surface of the covering, wherein the fiber optic cable extending from the connection locations can extend from the first cavity to the outer surface of the covering for wrapping around the outer surface of the covering.
Another aspect of the present disclosure relates to a method of packaging a fiber optic enclosure having connection locations for storage or shipping, the method comprising providing a covering defining a first axial end and a second axial end, the covering defining a throughhole extending from the first axial end to the second axial end, the throughhole extending along a central longitudinal axis of the covering, the covering defining a first cavity for receiving the fiber optic enclosure, inserting the fiber optic enclosure into the first cavity, extending a fiber optic cable from the connection locations of the fiber optic enclosure to an outer surface of the covering, and wrapping the fiber optic cable around the outer surface of the covering.
A further aspect of the present disclosure relates to a method of deploying fiber optic cable from a fiber optic enclosure assembly, the method comprising providing a covering for housing a fiber optic enclosure, the covering defining a first axial end and a second axial end, the covering defining a throughhole extending from the first axial end to the second axial end, the throughhole extending along a central longitudinal axis of the covering, rotating the covering about the central longitudinal axis using the throughhole of the covering in deploying fiber optic cable from an outer surface of the covering, after fiber optic cable wrapped around the covering has been deployed, removing the fiber optic enclosure from the covering.
A further aspect of the present disclosure relates to a covering for packaging a fiber optic enclosure for storage or shipment, the covering comprising a first axial end, a second axial end, and an outer surface defined therebetween, a throughhole extending from the first axial end to the second axial end, the throughhole extending along a central longitudinal axis of the covering, a cavity configured for receiving the fiber optic enclosure, and a port extending from the cavity to the outer surface of the covering, the port configured to accommodate a fiber optic cable extending from a fiber optic enclosure placed within the cavity to the outer surface of the covering.
A variety of additional aspects will be set forth in the description that follows. These aspects can relate to individual features and to combinations of features. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad concepts upon which the embodiments disclosed herein are based.
Reference will now be made in detail to the exemplary aspects of the present disclosure that are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like structure.
Referring now to
Referring now to
Referring now to
Still referring to
A cable distribution system 8 is disposed in the interior region 33 of the housing 23, as illustrated in
In the illustrated embodiment, the cable distribution system 8 includes the cable spool 37. The cable spool 37 is disposed in the interior region 33 of the housing 23. The cable spool 37 includes a spooling portion 39, around which the subscriber cable 22 is coiled (shown in
In certain embodiments, the termination module 45 includes an adapter plate 47. In the subject embodiment, the adapter plate 47 is depicted as an L-shaped bracket. The adapter plate 47 defines one or more adapter slots at which one or more adapters may be coupled to the plate 47. It will be understood, however, that the scope of the present disclosure is not limited to the adapter plate 47 being an L-shaped bracket. A first side of the adapter plate 47 is rigidly mounted (i.e., non-rotatable) to the axial end 41 of the cable spool 37 through a plurality of fasteners (e.g., bolts, screws, rivets, etc.) which are inserted through mounting holes in the first side and in connected engagement with the axial end 41 of the cable spool 37.
The adapter slots of the adapter plate 47 are adapted to receive a plurality of adapters, generally designated 401. In the subject embodiment, the adapters 401 are SC-type adapters 401, although it will be understood that the scope of the present disclosure is not limited to the use of SC-type adapters 401 and other types of adapters may be used. Similar SC-type adapters 401 have been described in detail in commonly owned U.S. Pat. No. 5,317,663, the disclosure of which is incorporated herein by reference.
In an alternate embodiment, instead of fixed adapters 401, the termination module 45 may include a plurality of sliding adapter modules. Similar sliding adapter modules have been described in detail in commonly owned U.S. Pat. Nos. 5,497,444, 5,717,810, 6,591,051 and U.S. Pat. Pub. No. 2007/0025675, the disclosures of which are incorporated herein by reference.
Referring now to
The cable management structure 61 and the axial end 41 of the cable spool 37 cooperatively define a cable passage 63 that extends axially through the cable management structure 61 and through the axial end 41 of the cable spool 37. The cable passage 63 allows connectorized ends of incoming optical fibers to pass from the spooling portion 39 of the cable spool 37 to the slack storage area 59. The connectorized ends of the incoming optical fibers are then routed from the slack storage area 59 to the front sides of the adapters 401 in the termination area.
Still referring to
In one embodiment, the bearing is engaged with an inner diameter of a central hole of the cable spool 37. In another embodiment, a rotary plain bearing is formed between the outer surface 73 of the bearing mount 71 and the inner diameter of the central hole of the cable spool 37. In this embodiment, the outer diameter of the bearing mount 71 is sized to fit within an inner diameter of a central hole of the spooling portion 39. The engagement of the bearing mount 71 and the spooling portion 39 of the cable spool 37 allows the cable spool 37 to rotate about the central axis of the bearing mount 71. The bearing allows the cable spool 37 to rotate relative to the housing 23. Because the termination module 45 is mounted on the cable spool 37, the cable spool 37 carries the termination module 45 as the spool is rotated. Thus, the cable spool 37 and the termination module 45 can rotate in unison relative to the housing 23.
Referring now to
Now referring to
As noted above and as shown in
Each of the inner cavities 106, 110 may be closed off by a lid 114. The lid 114 may be a removable piece or may be connected to the covering 100 with a pivotable hinge structure such as a living hinge. With the lid 114 closed, the covering 100 is configured to surround (e.g., encase) the housing 23 when the housing 23 is disposed within the covering 100. In some implementations, the covering 100 is made of a protective and/or shock absorbing material, such as foam, rubber, or a variety of other types of corrugated materials. It is understood by a person of skill in the art that any suitable material for protecting the housing 23 containing the cable distribution system 8 may be utilized by the present disclosure. It should also be noted that depending upon the purposes served, different portions of the covering 100 may be formed from different materials.
In certain embodiments, as shown in
The covering 100 defines a cover port 126 that extends from each inner cavity 106, 110 to the cable management recess 102 defined on the exterior 116 of the covering 100 (see
The slit defining the cover port 126 preferably extends all the way to at least one of the axial ends 108, 112 of the covering 100 (including through the portions of the covering that forms that flanges) such that a fiber optic enclosure 21 placed within the covering 100 can be removed from the covering 100, sliding the cabling 22 through the slit 126.
If two fiber optic enclosures 21 are provided within the covering 100, the cover ports 126 may be located on opposing sides of the covering 100 as shown in
Also, if two fiber optic enclosures 21 are provided within the covering 100, a portion of the cable management recess 102 (e.g., approximately half of the surface area of the bottom surface 118 of the recess 102 extending in a direction between flanges 124) may be used for spooling cabling 22 from one of the fiber optic enclosures 21 and the other half of the surface area of the bottom surface 118 of the cable management recess 102 (e.g., the half extending in a direction between flanges 124) may be used for spooling cabling from the other of the fiber optic enclosures 21. As noted above, according to certain embodiments, the cover ports 126 could be configured such that they only extend from the inner cavities 106, 110 to their respective half of the bottom surface 118 of the recess 102 that will be used to spool cable 22 from the given fiber optic enclosure 21.
The cable management recess 102 of the covering includes a cable storage portion 103 around which the fiber optic cable 22 may be wrapped (e.g., a circular pocket 103 defined in a major side of the covering 20 in which the stored cable is coiled) for holding the extra length of cable 22 within the center of the cable management recess 102. This cable storage portion 102 allows the cable management recess 102 to store a predetermined length or less of the fiber optic cable 22 on the covering 100. The cable storage portion 103 is sized such that it includes a curvature that is larger than the minimum bend radius of the optical fibers so as to avoid attenuation damage to the optical fibers during storage. Thus, even though the cable storage portion 103 and the flanges 124 have been depicted as including generally cylindrical shapes, other shapes can be used as long as the minimum bend radius requirements for the optical fibers are met. The shapes of the flanges 124 do not depend upon bend radius requirements. However, the flanges 124 should extend from the bottom wall 118 to the extent so as to be able to wind up the required amount of cabling 22.
Once an end 7 of the subscriber cable 22 has been passed through the cover port 126, this end 7 is exposed to the cable management recess 102. The end 7 of the subscriber cable 22 is preferably accessible to the user or installer of the fiber optic enclosure 21 without removing the housing 23 from the covering 100. In some embodiments, the accessible end 7 of the fiber optic cable 22 is preferably accessible by the user or operator without having to open up the top 25 of the housing 23.
As shown in
According to the present disclosure, the term “predetermined length of fiber optic cable” that is stored on the covering 100 may mean an installation length, which is sufficiently long enough to extend from the mounting location of the fiber optic enclosure 21 to the fiber distribution hub 17 (
In one embodiment, the predetermined length around the covering 100 is greater than or equal to about 20 feet. In another embodiment, the predetermined length of subscriber cable 22 is greater than or equal to about 50 feet. In another embodiment, the predetermined length of subscriber cable 22 is greater than or equal to about 80 feet. In a further embodiment, the predetermined length of subscriber cable 22 is greater than or equal to about 100 feet. In an additional embodiment, the predetermined length of subscriber cable 22 is greater than or equal to about 150 feet. In certain embodiments, the length is in the range of 20-500 feet. According to certain embodiments, the length is about 230 feet.
According to certain embodiments, the covering 100 may include a retention device. The retention device may selectively attach the fiber optic cable or subscriber cable 22 and/or the end 7 (such as a connectorized end) of the fiber optic cable 22 to the covering 100. Non-limiting examples of the retention device include a hook, snap, clip, strap, band or any other suitable device for selectively attaching the fiber optic cable 22 to the covering 100. For example, the retention device may attach the fiber optic cable 22 to the covering during storage of the fiber optic cable 22. A user opens, unfastens, unhinges, and/or unhooks the retention device to allow the fiber optic cable 22 to be unwound from the covering 100 prior to deploying/paying out the fiber optic cable 22.
In some embodiments, the covering 100 or portions thereof may be surrounded with plastic wrap. The plastic wrap may further protect and insulate the housing 23, the cable distribution system 8, and the excess length of subscriber cable 22. The plastic wrap also may help to maintain the fiber optic cable 22 within the cable management recess 102. In some embodiments, the plastic wrap is removed or unwrapped prior to use (e.g., deployment or pay out) of the subscriber cable 22.
The fiber optic enclosure assembly 10 provides dual functionality by serving as a storage location for the fiber optic enclosure(s) 21 and the additional subscriber cable 22 and by selectively conveniently paying out a desired length of the subscriber cable 22.
One example method of storing a subscriber cable 22 in a fiber optic enclosure assembly 10 includes coiling a length of the subscriber cable 22 around the cable spool 37 disposed within the housing 23. That length of the subscriber cable 22 around the spool 37 may include a first length of subscriber cable 22. The first length of subscriber cable 22 around the spool 37 may include a portion of the installation length (i.e., the length of cable 22 that extends between the housing 23 and the FDH 17). In certain implementations, as noted above, the length of the cable 22 around the spool 37 may also include a second or an excess length, which is the length of subscriber cable 22 remaining on the cable spool 37 after the installation length has been paid out. In one embodiment, the second length, or the excess length, of subscriber cable 22 is stored around the cable spool 37 after the first length of subscriber cable 22 has been paid out. If the length of subscriber cable 22 around the spool 37 plus the predetermined length of cable 22 around the covering is greater than the installation length of subscriber cable 22, the second length, or excess length, remains stored around the cable spool 37 after installation.
In one embodiment, the length of subscriber cable 22, which is coiled around the cable spool 37, is about 70 feet, when the predetermined length of cable around the covering 100 is about 230 feet. This total of about 300 feet may be provided for each of the enclosures 21 that are inserted into a single covering 100, wherein each half of the recess 102 of the covering 100 that corresponds to each enclosure 21 could hold about 230 feet of cabling.
One example method of paying out the subscriber cable 22 from the fiber optic enclosure assembly 10 will now be described. The example method accounts for the varying lengths of subscriber cable 22 needed between the fiber optic enclosure 21 and the fiber distribution hub 17. It is understood by a person of skill in the art that other methods for selective payout of the subscriber cable 22 may be utilized with the present disclosure.
A predetermined length of the fiber optic cable 22 is stored in the cable management recess 102 of the covering 100. This predetermined length is unwound from the recess 102 (e.g., by accessing the end 7 of the fiber optic cable 22) prior to paying out the fiber optic cable 22 from the housing 23. In some implementations, the cable 22 is unwound from the exterior surface 116 of the covering 100. In some embodiments, if plastic wrap is on the covering 100, the plastic wrap is removed before accessing the recess 102. The throughhole 104 of the covering 100 may be used to insert a mandrel in turning the covering 100 for unwinding the cabling 22.
Once the predetermined length of the fiber optic cable 22 is unwound from the covering 100, the housing 23 may be removed from the covering 100. The lid 114 may be pivotally opened or removed and the inner cavity 106 or 110 accessed to remove the housing 23. The housing 23 may then mounted to a wall or other surface at a desired deployment location (e.g., on a floor of an MDU).
A user, if needing more cabling, may unwind the subscriber cable 22 from the spool 37 within the housing 23. The spool 37 rotates on the bearing mount 71 within the housing 23 when the user pulls on the cable 22. Since the adapters 401 are fixedly mounted to the cable spool 37, the adapters 401 rotate with the cable spool 37 as the cable 22 is being paid out. Accordingly, the connectorized ends 5 of the subscriber cable 22 that are plugged into the adapters 401 rotate with the cable spool 37. Thereby, the subscriber cable 22 may be deployed without the first end 5 of the subscriber cable 22 being disconnected from the termination module 45. The free end 7 of the subscriber cable 22 is routed to the FDH 17 or other optical signal source at which the free end 7 is connected to an optical network.
Once the desired length of subscriber cable 22 has been paid out, the rotation of the cable spool 37 is ceased. At this point, the position of the cable spool 37 can be fixed such that it does not rotate relative to the housing 23. In one embodiment, a pin may be inserted through an opening in the axial end 41 of the cable spool 37 and through a corresponding opening in the base 27 of the housing 23 to fix the position of the cable spool 37 with respect to the housing 23. It will be understood, however, that the scope of the present disclosure is not limited to the use of a pin to fix the position of the cable spool 37 with respect to housing 23 and other methods can be utilized.
Subsequent to paying out the subscriber cable 22, one or more additional optical fibers (e.g., distribution cable fibers) may be routed to the housing 23 for connection to the subscriber cable 22, thereby connecting the additional optical fibers to the optical network. To connect a distribution fiber to the optical network, a user accesses the interior of the housing 23 (e.g., by opening the top 25 of the housing 23). The user plugs a connectorized end of the distribution fiber into the second end 1 of one of the adapters 401 to optically couple the distribution fiber to the subscriber cable 22. The subscriber cable 22 optically couples the distribution fiber to the optical network (via a feeder cable 15).
An alternate method of selectively paying-out subscriber cable 22 from the fiber optic enclosure assembly 10 will now be described. With the fiber optic enclosure assembly 10 positioned near the fiber distribution hub 17, the second connectorized end 7 of the subscriber cable is optically connected to the fiber distribution hub 17 first. With the second end 7 of the subscriber cable 22 optically connected to the fiber distribution hub 17 and the first end 5 of the subscriber cable 22 connected to the termination module 45 (within the enclosure 21), the fiber optic enclosure assembly 10 is transported away from the fiber distribution hub 17.
In one embodiment, the fiber optic enclosure assembly 10 is carried away from the fiber distribution hub 17 by an installer, with the covering 100 rotating around a mandrel type structure. In another embodiment, the fiber optic enclosure assembly 10 is transported away from the fiber distribution hub 17 in a wheeled cart (e.g., dolly, 4-wheeled cart, etc.). In a preferred embodiment, the fiber optic enclosure 21 is disposed in a packaging enclosure (e.g., covering 100) during transport. As the fiber optic enclosure assembly 10 is transported away from the fiber distribution hub 17, the subscriber cable 22 unwinds from the cable management recess 102 of the covering 100. Once the cabling 22 around the covering 100 is all deployed, the enclosure 21 can be removed from the covering 100 and the cable 22 around the spool 37 of the housing 23 can then be deployed, with the cable spool 37 rotating within the interior region 33 of the housing 23. When the fiber optic enclosure assembly 10 has been transported to its mounting location, the fiber optic enclosure 21 is removed from the packaging covering 100 and mounted to the mounting location. The cable spool 37 can be fixed in position relative to the housing 23 to prevent inadvertent rotation of the cable spool 37.
If the given covering 100 has been used to store two fiber optic enclosures 21 and additional cabling 22 from two fiber optic enclosures 21, once subscriber cable 22 from one of the fiber optic enclosures 21 has been paid out and the fiber optic enclosure 21 removed from the covering 100, the cabling 22 from the other fiber optic enclosure 21 can be deployed in a similar manner (e.g., first from the covering 100 and then from the other enclosure 21 if needed). The second enclosure 21 can then be removed from the covering 100 and mounted to a mounting location as in the first enclosure 21. Thus, covering 100 can be used as a protective packaging for both of the fiber optic enclosures 21 and allows either or both of the enclosures 21 to be connected to the network.
It should be noted that even though the present description depicts the use of two fiber optic enclosures 21 within a single covering 100, the covering 100 can be configured to hold more or less such enclosures 21.
As noted above, placement of two enclosures 21 on opposing sides of the throughhole 104 provides weight distribution advantages for the spinning of the covering 100, both during deployment and winding of the cabling at the factory.
Also, if a single inner cavity 106/110 is being used for storing one enclosure 21, the other inner cavity 110/106 may be provided with a counterweight during the winding of the cabling 22 at the factory for weight distribution.
Although the present disclosure depicts only one example of a fiber optic enclosure 21 that can be used within the covering 100 to form the fiber optic enclosure assembly 10 of the present invention, other types or configurations of fiber optic enclosures 21 having connection locations can be utilized with the covering 100 and the invention should not be limited to the configurations of enclosures 21 shown. Preferably, the types of fiber optic enclosures 21 that may be used within the covering 100 should be ones that include a type of a cable deployment means for deployment additional cable if needed, such as a rotating spool, etc.
Various modifications and alterations of this disclosure will become apparent to those skilled in the art without departing from the scope and spirit of this disclosure, and it should be understood that the inventive scope of this disclosure is not to be unduly limited to the illustrative embodiments set forth herein.
This application is a Continuation of U.S. patent application Ser. No. 15/677,481, filed on 15 Aug. 2017, which is a Continuation of U.S. patent application Ser. No. 15/273,803, filed on 23 Sep. 2016, now U.S. Pat. No. 9,791,655, issued on 17 Oct. 2017, which is a Continuation of U.S. patent application Ser. No. 14/381,907, filed on 28 Aug. 2014, now U.S. Pat. No. 9,494,757, issued on 15 Nov. 2016, which is a U.S. National Stage of PCT International Patent Application No. PCT/US2013/027997, filed on 27 Feb. 2013, which claims priority to U.S. Patent Application Ser. No. 61/604,991 filed on 29 Feb. 2012, the disclosures of which are incorporated herein by reference in their entireties.
Number | Date | Country | |
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61604991 | Feb 2012 | US |
Number | Date | Country | |
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Parent | 15677481 | Aug 2017 | US |
Child | 16108706 | US | |
Parent | 15273803 | Sep 2016 | US |
Child | 15677481 | US | |
Parent | 14381907 | Aug 2014 | US |
Child | 15273803 | US |