WO2016154092A1 - Module de fibre optique et châssis à gestion de mou de câble - Google Patents

Module de fibre optique et châssis à gestion de mou de câble Download PDF

Info

Publication number
WO2016154092A1
WO2016154092A1 PCT/US2016/023366 US2016023366W WO2016154092A1 WO 2016154092 A1 WO2016154092 A1 WO 2016154092A1 US 2016023366 W US2016023366 W US 2016023366W WO 2016154092 A1 WO2016154092 A1 WO 2016154092A1
Authority
WO
WIPO (PCT)
Prior art keywords
telecommunications
module
fixture
spool
fiber optic
Prior art date
Application number
PCT/US2016/023366
Other languages
English (en)
Inventor
Brent Campbell
Michael J. Wentworth
John T. Pfarr
Original Assignee
Commscope Technologies Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commscope Technologies Llc filed Critical Commscope Technologies Llc
Publication of WO2016154092A1 publication Critical patent/WO2016154092A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4452—Distribution frames
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4453—Cassettes
    • G02B6/4455—Cassettes characterised by the way of extraction or insertion of the cassette in the distribution frame, e.g. pivoting, sliding, rotating or gliding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4457—Bobbins; Reels

Definitions

  • the present disclosure relates to apparatus and methods for termination and storage of optical fiber cables, such as distribution cables.
  • a further concern related to termination and storage of optical fiber cables is the ease of access to the cables and the terminations. Such ease of use is desired during assembly, during installation in the field, and later when changes or modifications to the system are desired requiring adding or removing terminations, or when cleaning and checking the terminations.
  • a further concern in the area of termination and storage/management of optical fiber cables includes protecting the optical fiber from damage from excess bending below the minimum bend radius of the cable. Such protection of the fibers is desired during assembly and installation, and later when individual terminations and cables are accessed for cleaning or modification.
  • the present disclosure relates to a telecommunications system, a fiber optic based system according to one aspect, that includes a chassis and at least one movable module, wherein both the chassis and the module include cable slack storage/ management features for managing fiber optic cables associated with the system.
  • the system includes a chassis and a plurality of movable modules mounted therein, wherein the chassis and the modules include features that cooperate to manage the slack for cabling between the chassis and the modules as the modules move between an extended position and a retracted position.
  • the telecommunications system includes a telecommunications fixture including a fixture spool and at least one telecommunications module mounted to the telecommunications fixture.
  • telecommunications module is slidably movable between a retracted position and an extended position with respect to the telecommunications fixture.
  • telecommunications module includes a module spool that moves with the
  • a cable that extends from the telecommunications fixture to the slidable telecommunications module is at least partially wrapped around both the fixture spool and the module spool when the module is in the retracted position.
  • the telecommunications system includes a telecommunications fixture including a fixture spool and at least one telecommunications module mounted to the telecommunications fixture, the
  • telecommunications module slidably movable between a retracted position and an extended position with respect to the telecommunications fixture.
  • telecommunications module includes a module spool that moves with the
  • the module spool moves away from the fixture spool along a first direction and toward the fixture spool along a second direction that is orthogonal to the first direction.
  • the disclosure is directed to a method of managing a cable extending between a telecommunications fixture and a
  • the method comprising moving the telecommunications module from an extended position to a retracted position with respect to the telecommunications fixture and at least partially wrapping the cable around both a spool of the telecommunications fixture and a spool of the telecommunications module automatically by moving the telecommunications module from the extended position to the retracted position, wherein the spool of the
  • telecommunications module moves toward the spool of the telecommunications fixture along at least a first direction.
  • inventive aspects can relate to individual features and 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 inventive concepts upon which the embodiments disclosed herein are based.
  • FIG. 1 is a front perspective view of a fiber optic telecommunications system including a telecommunications chassis and a plurality of slidable distribution modules mounted therein, the system having inventive aspects in accordance with the present disclosure;
  • FIG. 2 is a partially exploded view of the system of FIG. 1;
  • FIG. 3 illustrates a further exploded view of the system of FIGS. 1-2 with the distribution modules removed from the telecommunications chassis;
  • FIG. 4 is a close-up view illustrating one of the modules of FIG. 1 in a retracted position
  • FIG. 5 illustrates the module of FIG. 4 in an extended position
  • FIG. 6 is a top view illustrating one of the modules of FIG. 1 in a retracted position, with a cover of the module removed to show the internal features thereof including the cabling therein;
  • FIG. 6A illustrates the module of FIG. 6 with one of the mounting walls removed to show further details of the internal features of the module
  • FIG. 7 illustrates the module of FIG. 6 A in an extended position
  • FIG. 8 is another perspective view illustrating one of the modules of FIG. 1 in an extended position, with the cover of the module removed to show the internal features thereof;
  • FIG. 9 is a perspective view of one of the mounting walls used for slidably mounting the modules of FIG. 1 into the chassis of FIG. 1;
  • FIG. 10 is a top view of the wall of FIG. 9;
  • FIG. 11 is a cross-sectional view taken along line 11-11 of FIG. 10.
  • the fiber optic system 10 includes a telecommunications chassis/frame 12 that houses a plurality of slidably mounted distribution modules 14.
  • the chassis 12 defines a front side 16, a rear side 18, a right side 20, a left side 22, a top side 24, and a bottom side 26.
  • the fibers carried by a distribution cable 28 coming from the rear side 18 of the chassis 12 are relayed as ribbon cables 30 (illustrated in FIGS. 6-8) to each of the modules 14 mounted within the chassis 12.
  • the ribbon cables 30 are shown as being terminated with MPO style connectors 32 that are mounted to MPO style adapters 33 positioned at the front of the distribution modules 14.
  • the right side 20 of the chassis 12 is defined by a vertical right wall 34.
  • the right side 20 of the chassis 12 is provided as a closed side.
  • the left side 22 of the chassis 12 is provided as an open side, and the modules 14 are configured to slide generally in a direction from the closed right side 20 toward and through the open left side 22.
  • the right wall 34 includes a plurality of chassis spools 38 mounted thereon.
  • the chassis spools 38 are mounted in a stacked arrangement extending from the top side 24 to the bottom side 26 of the chassis 12.
  • Each chassis spool 38 cooperates with a slidable distribution module 14 for managing the cable slack associated with each module 14.
  • the chassis 12 For providing slidable movement to the modules 14, the chassis 12 includes a plurality of walls 90 mounted on the right wall 34.
  • the walls 90 are provided in a stacked arrangement from the top side 24 to the bottom side 26.
  • the walls 90 are mounted parallel to each other. As shown, each module 14 uses two of the walls 90 for slidable support.
  • FIGS. 9-11 illustrate one of the walls 90 of the chassis in isolation. As shown, each wall 90 mounts to the right wall 34 of the chassis 12 along a lower edge 112, such as with fasteners into holes 113.
  • the wall 90 defines opposite facing linear grooves 214 which are configured to slidably receive mating structures of the modules 14 mounted thereto.
  • Each module 14 includes a module housing 40 defined by a main housing portion 42 and a removable cover 44 that is attached to the main housing portion 42 for covering an interior 46 of the module 14.
  • the main housing portion 42 defines a bottom wall 48 of the module housing 40, and the cover 44 defines a top wall 50 of the module housing 40.
  • the main housing portion 42 also defines a curved rear wall 52 for relaying fibers in and out of the module housing 40 without violating minimum bend radius requirements.
  • a curved notch 54 is defined by a right wall 56 of the main housing portion 42 (and also by the cover 44), where the curved notch 54 is configured to accommodate the chassis spool 38 when the module 14 is in the retracted position.
  • the module housing 40 defines an adapter block 100 at a front end 58 and a module spool 60 at a rear end 62 of the module 14.
  • the adapter block 100 is provided as an integral part of the module housing 40 in the depicted embodiment.
  • the adapter block 100 may be provided as a removable part of the module 14 that can be removed and replaced with similar blocks or blocks having different adapter formats.
  • the adapter block 100 may be provided with adapters that are integrally formed with the block 100 or may include individually removable adapters.
  • the module spool 60 at the rear end 62 of the module 14 cooperates with one of the chassis spools 38 provided within the chassis 12 for managing the cabling extending into the module 14, as will be discussed in further detail below.
  • FIG. 4 illustrates the module 14 in a retracted position
  • FIG. 5 illustrates the module 14 in an extended position
  • FIG. 6 illustrates the module 14 with the cover 44 of the module 14 removed to show the internal features thereof, including the cabling 30 therein
  • FIG. 6A illustrates the module 14 with one of the mounting walls 90 removed to show further details of the internal features of the module 14.
  • FIG. 7 illustrates the module of FIG. 6 A in an extended position.
  • the slidable interaction of the modules 14 with the walls 90 of the chassis 12 is provided by the adapter block 100 that is located at the front end 58 of the module 14.
  • the adapter block 100 defines guides 108 formed as rails for slidably mating with grooves 214 of two opposed walls 90.
  • the adapter block 100 may include openings 102 for receiving individual adapters 33.
  • the main adapter bodies may be formed as integral parts of the block 100, wherein the block 100 just receives internal ferrule alignment features.
  • MPO type adapters 33 are shown.
  • the front ends 64 of the adapters 33 are provided with dust caps 66 when the modules 14 are not being actively used.
  • each adapter block 100 for receiving four MPO type adapters 33.
  • the MPO adapters 33 snap into the openings 102.
  • each module 14 is shown with four MPO type adapters 33 that can mate MPO connectors 32, other numbers are possible.
  • the modules 14 may be twice as wide providing twice the capacity shown in the Figures, or each MPO connector 32 may be terminated to two ribbon cables 30, providing twice the distribution.
  • the adapter block 100 includes a pivoting handle 114 which pivots about hinge 115 in the direction of an arrow E as specifically shown in FIGS. 6 and 6 A.
  • a tip 98 of the handle 114 engages an end 120 of wall 90 to lift the adapter block 100 (and the entire module) to allow the movement to start from a retracted position to an extended position.
  • a slide handle or clip 122 provided at the opposite end of the row of adapters is configured to engage an edge 116 of the wall 90.
  • a corner 124 of the clip 122 engages first notch 94 defined on the edge 116 to retain module 14 in the retracted position.
  • the handle 114 when pivoted to engage the wall 90 and lift the adapter block 100, moves the corner 124 out of first notch 94 to allow movement to the extended position through a pulling motion by the user.
  • the corner 124 of the clip 122 falls into a second notch 96 defined on the edge 116 when the module 14 is in the fully extended position.
  • the interaction of the clip 122 and the second notch 96 keeps the module 14 from sliding off of the wall 90.
  • Slide handle/clip 122 is spring loaded to resist movement of a handle portion 126 of the clip 122 in the direction of arrow F as shown in FIGS. 6 and 6A.
  • the slide handle/clip 122 can then be moved manually to allow module 14 to be fully separated from the wall 90 if desired. In this manner, any of the modules 14 may be fully removed from the chassis 12 such as for repair or replacement of the adapters 33.
  • axis G defines the line of travel and presents each of the MPO adapters 33 in a staggered arrangement relative to a transverse direction H.
  • axis G defines the line of travel and presents each of the MPO adapters 33 in a staggered arrangement relative to a transverse direction H.
  • each module 14 includes a module spool 60.
  • the module spool 60 in the depicted embodiment, is formed as an integral part of the module main housing portion 42.
  • the module spool 60 moves along with the slidable module 14 and cooperates with the fixed chassis spool 38 in managing the cabling.
  • the module spool 60 When the module 14 is in a retracted position, as shown in FIGS. 6 and 6A, the module spool 60 is generally horizontally aligned with the chassis spool 38.
  • the module housing 40 includes the curved notch 54 configured to accommodate the chassis spool 38 when the module 14 is in the retracted position.
  • the module spool 60 moves away from the chassis spool 38 in a direction extending from the right side 20 to the left side 22 (i.e., first direction A), but also moves toward the chassis spool 38 when viewed along a rear to front direction (i.e., second direction B) of the chassis 12.
  • Both the chassis spool 38 and the module spool 60 include cable retention fingers 68 for retaining the cables 30 around the spools 38, 60.
  • the cable 30 As a cable 30 extends from the rear side 18 of the chassis 12 toward the modules 14, the cable 30 is initially passed around the chassis spool 38 between the right wall 34 of the chassis 12 and the chassis spool 38. The cable 30 is then wound around the chassis spool 38 toward the rear and then around the module spool 60. As the cable 30 is wound around the module spool 60, the cable 30 enters the interior 46 of the module 14 through an opening 70 located at the rear end 62 of the module 14 that is adjacent the module spool 60. From the opening 70, the cable 30 is led to the adapter block 100 adjacent the front end 58 of the module 14.
  • the cable 30, which is terminated with a fiber optic connector 32 (e.g., an MPO type connector in the depicted example) is mated to one of the adapters 33 of the adapter block 100.
  • a fiber optic connector 32 e.g., an MPO type connector in the depicted example
  • the adapter block 100 provides the capacity for four adapters 33 even though three are shown as being used.
  • the spools 38, 60 of the chassis 12 and the module 14 are sized (in diameter) and positioned such that, even when the module 14 is at its fully extended position, the length of cable 30 that has been wound around both of the spools 38, 60 is not pulled or tensioned in a manner where stress is applied to the optical fibers.
  • the length of fiber that is between the rear end 62 of the module 14 (at the rearmost part of the module spool 60) and the forwardmost part of the chassis spool 38 moves between a taut configuration and a coiled configuration. This length of fiber is managed and remains unstressed as the module 14 moves between extended and retracted positions.
  • the MPO connectors 32 at the front end 58 of the module 14 may be oriented in the MPO adapters 33 such that the flat profile of the ribbon cables 30 are positioned horizontally against the bottom wall 48 of the module housing 40.
  • the module interior 46 provides enough space where the ribbon cables 30 can be twisted
  • a plurality of ribbon cables 30 can exit through the opening 70 at the rear end 62 of the module 14 and be wound around both the module spool 60 and the chassis spool 38.
  • the chassis 12 depicted in FIGS. 1-3 is a 432-fiber chassis, with twelve sliding fiber optic modules 14, each module 14 including three MPO adapter ports, each adapter port mating an MPO connector 32 that is carrying twelve fibers.
  • the fiber counts can be varied depending upon the desired density.
  • MPO format connectors 32 and adapters 33 other format types such as SC, LC, and FC can be used.

Abstract

Selon l'invention, un système de télécommunications comprend un dispositif de télécommunications comprenant une bobine de dispositif et au moins un module de télécommunications monté sur le dispositif de télécommunications. Le module de télécommunications est mobile de façon coulissante entre une position rétractée et une position étendue par rapport au dispositif de télécommunications. Le module de télécommunications comprend une bobine de module qui se déplace avec le module de télécommunications, la bobine de module se déplaçant vers la bobine de dispositif et en s'éloignant de cette dernière lorsque le module de télécommunications coulisse par rapport au dispositif de télécommunications. Un câble qui s'étend du dispositif de télécommunications au module de télécommunications coulissant est au moins partiellement enroulé autour de la bobine de dispositif et de la bobine de module lorsque le module est dans la position rétractée.
PCT/US2016/023366 2015-03-23 2016-03-21 Module de fibre optique et châssis à gestion de mou de câble WO2016154092A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562137005P 2015-03-23 2015-03-23
US62/137,005 2015-03-23

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WO2016154092A1 true WO2016154092A1 (fr) 2016-09-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10670822B2 (en) 2017-06-28 2020-06-02 Afl Telecommunications Llc High density patch panel with modular cassettes
US11237348B2 (en) 2019-04-17 2022-02-01 Afl Ig Llc Patch panel with lifting cassette removal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5544273A (en) * 1995-01-19 1996-08-06 Dsc Communications Corporation Fiber optic cable storage shelf and method using same
JP2003029054A (ja) * 2001-07-18 2003-01-29 Nec Corp 光ファイバコード余長処理装置及びそれを内蔵した光ファイバケーブル収容装置
JP2006201662A (ja) * 2005-01-24 2006-08-03 Sumitomo Electric Ind Ltd 光ファイバモジュール
US20100310224A1 (en) * 2007-08-06 2010-12-09 Adc Telecommunications, Inc. Fiber optic enclosure with internal cable spool
US20130089298A1 (en) * 2011-10-07 2013-04-11 Matthew Holmberg Slidable fiber optic connection module with cable slack management

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5544273A (en) * 1995-01-19 1996-08-06 Dsc Communications Corporation Fiber optic cable storage shelf and method using same
JP2003029054A (ja) * 2001-07-18 2003-01-29 Nec Corp 光ファイバコード余長処理装置及びそれを内蔵した光ファイバケーブル収容装置
JP2006201662A (ja) * 2005-01-24 2006-08-03 Sumitomo Electric Ind Ltd 光ファイバモジュール
US20100310224A1 (en) * 2007-08-06 2010-12-09 Adc Telecommunications, Inc. Fiber optic enclosure with internal cable spool
US20130089298A1 (en) * 2011-10-07 2013-04-11 Matthew Holmberg Slidable fiber optic connection module with cable slack management

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10670822B2 (en) 2017-06-28 2020-06-02 Afl Telecommunications Llc High density patch panel with modular cassettes
US10823928B2 (en) 2017-06-28 2020-11-03 AFL Telecommuncations LLC High density patch panel with modular cassettes
US11169347B2 (en) 2017-06-28 2021-11-09 Afl Telecommunications Llc High density patch panel with modular cassettes
US11822140B2 (en) 2017-06-28 2023-11-21 Afl Telecommunications Llc High density patch panel with modular cassettes
US11237348B2 (en) 2019-04-17 2022-02-01 Afl Ig Llc Patch panel with lifting cassette removal
US11726288B2 (en) 2019-04-17 2023-08-15 Afl Telecommunications Llc Patch panel with lifting cassette removal

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