WO2019178664A1 - Boîtier de terminaison optique - Google Patents

Boîtier de terminaison optique Download PDF

Info

Publication number
WO2019178664A1
WO2019178664A1 PCT/BR2019/050098 BR2019050098W WO2019178664A1 WO 2019178664 A1 WO2019178664 A1 WO 2019178664A1 BR 2019050098 W BR2019050098 W BR 2019050098W WO 2019178664 A1 WO2019178664 A1 WO 2019178664A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
lid
tray
cable
sealing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/BR2019/050098
Other languages
English (en)
Portuguese (pt)
Inventor
Thiago Deconto Vieira
Michael Kulczynskyj
Robson Diego Verbiski DOS SANTOS
Sergio Roberto Scarpin
Renato Flávio CRUZ
Marcos Guido SABINO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric LatAm SA
Original Assignee
Furukawa Electric LatAm SA
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 Furukawa Electric LatAm SA filed Critical Furukawa Electric LatAm SA
Priority to MX2020009927A priority Critical patent/MX2020009927A/es
Priority to MA51497A priority patent/MA51497B2/fr
Publication of WO2019178664A1 publication Critical patent/WO2019178664A1/fr
Anticipated expiration legal-status Critical
Priority to CONC2020/0011867A priority patent/CO2020011867A2/es
Ceased legal-status Critical Current

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes

Definitions

  • the present invention relates to an optical cable termination and / or splice box, commonly referred to as a "termination box”, to be commonly applied to fiber-optic networks called FTTH ("fiber to the home ”) to protect an optical splitter between a fiber optic from a boxed multi-fiber distribution cable and multiple optical drop cables, usually in the form of a compact cable (" low friction "), and / or optical fusion splices between one or more distribution cable optical fibers and a respective optical branch cable (multi-fiber optical cable).
  • FTTH fiber to the home
  • the optical termination box of the present invention is of the type usually applied in overhead installations, being fixed to the building's strand or facade having a base, a hinged lid to the base, sealing elements acting between the base and the lid. and between the base and the different distribution, branch and termination cables (or approach - drop cables), and also inside the housing elements for accommodating optical adapters for connectorized freckles and any fusion splices in " splitter "and in derivation.
  • Fiber-optic networks require the provision of user-activation splice points and endpoints, which are protected by termination and / or distribution boxes generally installed externally and overhead.
  • a splice point for example, one or more s fibers from a distribution cable received at a termination / distribution box are fused spliced to the respective fibers of a branch cable that exit from said box to reach a new splice point or a user activation endpoint .
  • one of the fiber optic cable fibers arriving at an aerial termination box can be splittered to provide termination cables directed to end users of the network.
  • Fiber optic cable strands that reach a termination box but are not connected to a termination cable (drop cable) may pass through the box, unchanged or amended to a new extension cable, to proceed towards a new user splicing or activation point.
  • termination boxes shall be constructed to receive at least one multi-fiber distribution cable, and to release one or more branch cables and / or a compact drop cable, requiring accommodation. for splitter or splice fusion splices.
  • a problem with these housings arises from the risk of damage to the compact terminal cables already installed therein during maintenance operations of the optical network, when the installer needs to move the internal fiber accommodation elements in the housing, causing frequency, improperly bending the compact optical termination cables and even damaging the connection adapters of these termination cables, which need to be disconnected from the adapters for the installer to have access to fiber melt areas.
  • termination boxes have been proposed with the inner housing elements of the compact terminating cables physically separated from the inner housing elements of the multi-fiber branch cables.
  • the known termination boxes present yet another drawback resulting from the fact that they allow the cover to be closed even if the installer has not anchored the compact terminal cable (drop cable) correctly, allowing in this case the compact cable and, consequently, the data transmission network are susceptible to undesirable and even unacceptable movements under current regulations.
  • the present invention aims to provide a terminal box for optical access networks, aerial installation and which is of simple and robust construction with few parts. for easy and safe handling of the fiber splicing elements by the respective installer team without interference with the termination cable connection elements to be handled by another installer team.
  • the present invention further aims to provide an aerial installation optical termination box which, in addition to its simple and safe construction, is endowed with a high degree of tightness that does not require the installer's special care and is provided with a sealing system. double acting on the box, distribution cables, branch cables and termination cables and allowing to contain large jets of water in a first stage and even droplets and small insects in a second stage, with drainage between the two stages.
  • Still another object of the invention is to provide an aerial installation optical termination box that is not only simple and sturdy in construction but ensures the correct anchorage of the termination cables (drop cables) upon closing. of the lid.
  • the optical termination box comprises: a base having a bottom wall and peripheral walls defining at least one front edge and side openings for passage of multifiber optical cables; a hinged lid to the base and having a top wall and peripheral walls defining at least one rear edge being movable between a closed position seated against the base and an open position; and a hinged tray at the base and having a rear face and a front face movable between a first position with its rear face seated on the base and the front face exposed to the installer and a second position in which it exposes the rear face in a horizontal position. to the installer.
  • the peripheral walls of the base have multiple front edges which define, two by two, a drainage channel, with two peripheral walls having their front edges and the respective channel. drainage line following the inner contour of the side openings, each side opening housing and retaining an elastomeric sealing sleeve, closing the cross section of each side opening not occupied by a multi-fiber optic cable through said side opening, the lid having its peripheral walls provided with multiple rear edges, whereby in the closed position of the lid the front and rear edges of the base and lid, in the regions devoid of the side openings, are interlocked together, forming a sealing maze.
  • the tray further incorporates, in the region of the side openings and on its front face: a pair of side cradles, each taking the form of a channel with its recessed front edges, each lateral cradle being inferiorly provided with projecting rear edges, at least one of the which have cooperative extensions, in sealing overlap, with respective sealing bushings; and a pair of lateral elastomeric sealing members with their front edge provided with slots aligned with the recesses of the front edges of the side cradles, said slots and recesses aligned with each other receiving the tight fit of the respective end cables, being an extension of a rear edge of the lid seated against a respective sealing member and an extension of another rear edge of the cooperating lid overlapping with a front edge of a respective side cradle.
  • the termination box further comprises an anchor member engaged and retained within each side cradle and having a front face provided with anchor cutouts aligned with the recesses of the respective side cradle and into which the respective end cables are fitted and anchored, by pressure / interference, being an extension of at least one of the rear edges of the lid when closed, seated against a respective end cable, forcing it into the respective anchor cutout.
  • the different aspects of the invention allow optical fiber fusion or splitter splicing operations to be carried out with the tray open and horizontal, without risk of undue bending or unwanted manipulation of the front cable connections provided on the front face. from the tray.
  • the new construction ensures a reliable seal, regardless of operator interference, by forming labyrinth between the facing edges of the lid and the base and also by the provision of bushings and sealing elements acting in the through openings of the multi-fiber optic cables and the compact terminal cables respectively, these sealing means being operatively associated with a intermediate drainage.
  • the new solution also allows the enclosure lid to be closed only with the existing terminal cables properly seated in the anchor elements.
  • Figure 1 represents a rear perspective view of the termination box of the invention, with its lid in a closed condition on the base and with its visible side wall provided with three openings each carrying a sealing sleeve for tight and sealed passage of a corresponding distribution or branch cable;
  • Figure 2 is a front perspective view of the box of figure 1, with the lid in the open condition, but having the inner tray hinged to the base and still seated within the latter and having its front face carrying two sets of eight. retractable adapters for connecting termination cables (drop cables);
  • Figure 3 is a front perspective view of the termination box with its base in an upright hanging position on a strand, its lid also in an upright and open position and the inner tray stabilized in an open horizontal position, with your face rear facing upwards to expose to the installer the splitter of a termination cable, the housing elements of the splice / splice cable splices and fiber extension accommodation elements;
  • Figure 4 is a front perspective view of the base, exploding exploded sealing bushings for distribution and branch cables, a lock for retaining the lid in the closed position and a pair of handles for strand suspension;
  • Figure 5 is a front perspective view of the inner tray, exploding explodedly, a pig tail reserve cover, a pair of inner tray side sealing elements, a pair of rear anchor elements compact termination cables plus a sealing plate carrying two collapsible adapter bracket sets;
  • Fig. 6 is a top view of the assembly of Fig. 3 illustrating the rear face of the inner tray
  • Figure 7 is a plan view of the inside of the base, lid and lock in the open box condition and devoid of the inner tray;
  • Fig. 8 is a cross-sectional view of the termination box in the closed condition and devoid of the inner tray, said section having been taken in the direction of arrow VIII-VIII in Fig. 7;
  • Figure 9 represents a view similar to Figure 7, but including the inner tray in the closed condition and having its retractable adapters connected to respective compact termination cables; and [034]
  • Figure 10 is a partial longitudinal sectional view of the termination box in the closed condition and illustrating the sealing means acting on a distribution or branch cable and the anchoring means acting on a compact termination cable.
  • the optical termination box in question of generally overhead installation in a non-illustrated strand, comprises a base 10 and a lid 20, both of electrical non-conductive material, with the base 10 incorporating in one piece, a bottom wall 11 and peripheral walls 12 and defining at least one front edge 12a, preferably multiple front edges 12a, which two to two define a drainage channel 12b.
  • Two of the peripheral walls 12 are provided with side openings 13 for passing CO multi-fiber optic cables, which may be defined by a multi-fiber distribution cable or one or more multi-fiber branch cables.
  • peripheral walls 12 of the base 10 have multiple front edges 12a
  • the latter and the respective drainage channel 12b follow the inner contour of the side openings 13, each housing and retaining a sealing sleeve 14.
  • each sealing sleeve 14 is laterally and laterally provided with grooves 14a in which each respective extension is fitted. front edge 12a of base 10 accompanying contour of respective side opening 13 of base 10.
  • each sealing sleeve 14 is securely retained at the front edges 12a of base 10, providing two distinct sealing regions.
  • each sealing sleeve 14 has a transverse groove 14b, median open into the drain rail extension 12b accompanying the outline of the respective side opening 13 of the base 10.
  • seals 14, provided in side openings 13 devoid of a respective CO multi-fiber optic cable, have substantially massive construction provided only with said transverse groove 14b.
  • sealing bushings 14 provided in side openings 13 traversed by respective CO multi-fiber optic cable are provided with a longitudinal through-hole 14c, traversing transverse groove 14b and having at least a median portion thereof having a diameter smaller than the respective multi-fiber cable CO to be disposed through said longitudinal through hole 14c.
  • the lid 20 has a top wall 21 and peripheral walls 22 defining at least one and preferably multiple rear edges 22a which two to two define a lid rail 22b, the lid 20 hinged to the base. 10, preferably in a peripheral wall 12 thereof, devoid of side openings 13, to be displaceable between an open position and a locked position locked on base 10 and in which the front and rear edges 12, 22a of base 10 and lid 20 in regions devoid of side openings 13 are seated together and preferably nested together forming a maze of seal.
  • the optical termination box further comprises a tray 30 hinged to the base 10 and having a rear face 31 and a front face 32 and movable between a first position with its rear face 31 seated on the base 10, above the side openings 13 and exposing the front face 32 to the installer and a second position in which it exposes the rear face 31 to the installer.
  • Tray 30 has its rear face 31 carrying AF fiber accommodation means, EF fiber splicing means, an SF fiber splitter and C connectors receiving split FO optical fibers from a fiber derived from one CO fiber optic cable.
  • Front face 32 of tray 30 carries AS output adapters to each receive the fitting of a respective CT terminal cable.
  • the tray 30 further incorporates, in the region of the side openings 13 and on its front face 32, a pair of side cradles 33, each taking the form of a channel with its front edges 33a provided with recesses 33b receiving the snug fit. respective CT terminal cables to be projected out of the optical termination box.
  • each side cradle 33 takes the form of a U-shaped cross-sectional channel with its front edges 33a parallel to each other and provided with recesses 33b.
  • tray 30 hinged to the base 10 it is possible for an installation team to perform fusion splicing and further splitting of an optical fiber using the rear face 31 of tray 30 as a kind of horizontal table when in its second position illustrated in figure 3.
  • Optical splice or splice staff can simply move tray 30 to its second horizontal position and work on rear face 31, without risk of damaging the CT terminal cable connections disposed on front face 32 of tray 30.
  • bottom wall 11 of base 10 is usually arranged in a vertical mounting plane to remain suspended in a strand (not shown) by means of hanging hooks 15 attached to base 10 and which may take different constructs, such as the one illustrated exemplarily.
  • Tray 30 is preferably hinged to a peripheral wall 12 of base 10 in a lower region thereof, devoid of side openings 13, to be angularly displaced between its first position and its second position, in which it remains stabilized with its rear face 31 facing up in horizontal position.
  • tray 30 receives a front sealing plate 35, carrying the AS output adapters over which it is attached.
  • a complementary cap 36 is mounted to cover a spare region of fiber optic extensions derived from the SF (pig tails) fiber and connected to the AS freckle adapters.
  • the base 10 internally incorporates a locking latch 16, elastically deformable from an operative position, in which it locks the tray 30 in its first seated position at the base 10, to a dead position, in which it releases the angular displacement of tray 30 from the first position to the second position.
  • a locking latch 16 elastically deformable from an operative position, in which it locks the tray 30 in its first seated position at the base 10, to a dead position, in which it releases the angular displacement of tray 30 from the first position to the second position.
  • lid 20 is locked to base 10 by a lock 40 carried by a peripheral wall 12 of base 10, opposite that of pivoting lid 20 to base 10 and movable between an open position and a closed position in which it locks against the peripheral walls 12 of the base 10 and the lid 20.
  • the lock 40 can also be pivotally mounted to a peripheral wall 22 of the lid 20 to act against the base 10, when closing the optical termination box.
  • each side cradle 33 is provided inferiorly with projecting rear edges 33c, at least one of which has cooperative overlapping sealing extensions with respective sealing bushings 14, as illustrated in Figure 10, providing axial retaining means for said bushings and further a baffle for hindering the penetration of water jets into the housing through the junction region between the sealing bushings 14 and the rear face 31 of the tray 30.
  • the front face 32 of tray 30 further carries, in the region of the side openings 13 of base 10, a pair of elastomeric sealing elements 50, with their front edge 51 provided with slots 52 aligned with the recesses 33b of the edges 33a of said side cradles 33, said slots 52 and recesses 33b, being aligned with one another to receive the tight fit of respective terminal cables CT, being an extension of a rear edge 22a of lid 20 seated against and compressing a respective sealing member 50 around a respective terminating cable CT and an extension of another rear edge 22a of the overlapping cooperating cover 20 with a front edge 33a of a respective side cradle 33, as shown in Figure 10.
  • the optical termination box further comprises an anchor element 60 fitted and retained within each side cradle 33 and having a front face 61 provided with anchor cutouts 62 aligned with recesses 33b of the side cradle 33 and into which the respective CT terminal cables are fitted and anchored under pressure.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Cable Accessories (AREA)

Abstract

Le présent boîtier comprend une base (10) articulée avec un couvercle (20) et présente des parois périphériques (12, 22) avec bords antérieurs et postérieurs (12a, 22a) qui forment un labyrinthe d'étanchéité. Des ouvertures latérales (13) formées dans la base (10) reçoivent des douilles d'étanchéité (14) pour câbles optiques (CO). Un plateau (30) supportant des éléments de réception et d'épissurage de fibre optique sur une face postérieure (31) et des éléments de connexion sur une face antérieure (32) est articulé sur la base (10). Des berceaux latéraux (33) et des éléments d'étanchéité (50), sur la face antérieure (32) du plateau (30), entrent en prise avec des câbles terminaux (CT). Le couvercle (20) présente un bord postérieur (22a) en appui contre un élément d'étanchéité (50) et un autre bord postérieur (22a) coopérant avec un bord antérieur (33a) d'un berceau latéral (33) dans lequel vient s'accoupler un élément d'ancrage (60) mettant en prise des câbles terminaux (CT).
PCT/BR2019/050098 2018-03-23 2019-03-22 Boîtier de terminaison optique Ceased WO2019178664A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
MX2020009927A MX2020009927A (es) 2018-03-23 2019-03-22 Caja de terminacion optica.
MA51497A MA51497B2 (fr) 2018-03-23 2019-03-22 Boîtier de terminaison optique
CONC2020/0011867A CO2020011867A2 (es) 2018-03-23 2020-09-24 Caja de terminación óptica

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102018005815-0 2018-03-23
BR102018005815-0A BR102018005815A2 (pt) 2018-03-23 2018-03-23 Caixa de terminação óptica

Publications (1)

Publication Number Publication Date
WO2019178664A1 true WO2019178664A1 (fr) 2019-09-26

Family

ID=67988235

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2019/050098 Ceased WO2019178664A1 (fr) 2018-03-23 2019-03-22 Boîtier de terminaison optique

Country Status (6)

Country Link
AR (1) AR114598A1 (fr)
BR (1) BR102018005815A2 (fr)
CO (1) CO2020011867A2 (fr)
MA (1) MA51497B2 (fr)
MX (1) MX2020009927A (fr)
WO (1) WO2019178664A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111538129A (zh) * 2020-06-11 2020-08-14 义博通信设备集团股份有限公司 一种方便拔线的分纤箱及使用方法
WO2021087592A1 (fr) * 2019-11-07 2021-05-14 Furukawa Electric Latam S.A Boîtier de terminaison et dérivation optique
ES2891399R1 (es) * 2019-07-11 2022-03-08 Furukawa Electric Latam S A Caja de terminacion y derivacion optica
CN119376046A (zh) * 2024-12-30 2025-01-28 江苏南方通信科技有限公司 一种可扩容式光缆接头盒
US12298581B2 (en) 2020-01-29 2025-05-13 Afl Telecommunications Llc Terminal enclosure for a telecommunications system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR102021008983A2 (pt) * 2021-05-07 2022-05-31 Dpr Telecomunicacoes Ltda Encaixe de vedação de caixa

Citations (6)

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Publication number Priority date Publication date Assignee Title
US8452148B2 (en) * 2008-08-29 2013-05-28 Corning Cable Systems Llc Independently translatable modules and fiber optic equipment trays in fiber optic equipment
US9310579B2 (en) * 2013-04-18 2016-04-12 Furukawa Industrial S.A. Produtos Eletricos Aerial splicebox for fiber optic cables
US9575279B1 (en) * 2016-04-14 2017-02-21 Furukawa Industrial S.A. Produtos Elétricos Optic termination box
CN106646792A (zh) * 2015-10-30 2017-05-10 国家电网公司 一种光缆接续箱
CN106896458A (zh) * 2017-03-08 2017-06-27 深圳市晓控通信科技有限公司 一种采用远程通讯技术的光缆分线箱
CN107807426A (zh) * 2017-11-09 2018-03-16 江苏通鼎宽带有限公司 一种带电子标签的直立帽扣式光缆分线盒

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8452148B2 (en) * 2008-08-29 2013-05-28 Corning Cable Systems Llc Independently translatable modules and fiber optic equipment trays in fiber optic equipment
US9310579B2 (en) * 2013-04-18 2016-04-12 Furukawa Industrial S.A. Produtos Eletricos Aerial splicebox for fiber optic cables
CN106646792A (zh) * 2015-10-30 2017-05-10 国家电网公司 一种光缆接续箱
US9575279B1 (en) * 2016-04-14 2017-02-21 Furukawa Industrial S.A. Produtos Elétricos Optic termination box
CN106896458A (zh) * 2017-03-08 2017-06-27 深圳市晓控通信科技有限公司 一种采用远程通讯技术的光缆分线箱
CN107807426A (zh) * 2017-11-09 2018-03-16 江苏通鼎宽带有限公司 一种带电子标签的直立帽扣式光缆分线盒

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2891399R1 (es) * 2019-07-11 2022-03-08 Furukawa Electric Latam S A Caja de terminacion y derivacion optica
WO2021087592A1 (fr) * 2019-11-07 2021-05-14 Furukawa Electric Latam S.A Boîtier de terminaison et dérivation optique
US12276842B2 (en) 2019-11-07 2025-04-15 Furukawa Electric Latam S.A. Optical termination and derivation box
US12298581B2 (en) 2020-01-29 2025-05-13 Afl Telecommunications Llc Terminal enclosure for a telecommunications system
CN111538129A (zh) * 2020-06-11 2020-08-14 义博通信设备集团股份有限公司 一种方便拔线的分纤箱及使用方法
CN119376046A (zh) * 2024-12-30 2025-01-28 江苏南方通信科技有限公司 一种可扩容式光缆接头盒

Also Published As

Publication number Publication date
AR114598A1 (es) 2020-09-23
CO2020011867A2 (es) 2021-01-18
MX2020009927A (es) 2020-10-14
MA51497A1 (fr) 2021-02-26
BR102018005815A2 (pt) 2019-10-08
MA51497B2 (fr) 2022-08-31

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