WO2016079362A1 - Caja terminal óptica exterior - Google Patents
Caja terminal óptica exterior Download PDFInfo
- Publication number
- WO2016079362A1 WO2016079362A1 PCT/ES2015/070826 ES2015070826W WO2016079362A1 WO 2016079362 A1 WO2016079362 A1 WO 2016079362A1 ES 2015070826 W ES2015070826 W ES 2015070826W WO 2016079362 A1 WO2016079362 A1 WO 2016079362A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- box
- base
- box according
- connectors
- tray
- Prior art date
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
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial 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
- H02G15/013—Sealing means for cable inlets
Definitions
- the present invention has application in the technical sector of optical fiber telecommunications and especially in the external optical terminal boxes that provide customers with service and access to the fiber optic networks of the operators.
- fiber optic networks have optical terminal boxes as an indispensable element to give physical clients final access to the central network and thus be able to access the services offered by the different operators.
- the external location of the optical terminal boxes entails a series of essential requirements in terms of resistance to weather conditions, vandalism, accessibility or safety.
- the state of the art proposes different solutions to safeguard the interior elements with more or less armored designs, but one of the most critical points are the accesses, which ideally must be easily manipulated by authorized installers (and more taking into account that the boxes they are usually installed in locations that are not very accessible in height to avoid vandalism) but at the same time they have to guarantee the maximum possible tightness and resistance.
- the present invention relates to an external preconnected optical terminal box.
- Said box comprises a base (3) that has at least one access (2) for power cables; a cover that has a seal (10) and that joins the base by means of first fixing means; a housing for a pre-connected optical cassette splitter (6) and at least one splice tray (8), inside the box.
- the box is characterized in that at its base it also comprises reinforced external connectors (4), for example of the bayonet type, such that a preconnected connection from a customer to any one of said connectors can be connected directly from outside the box.
- the shape of the optical splitter used in the preferred embodiment is that of a parallelepiped measures 100x50x10 (mm), with a 1: 16 divider inside.
- the outputs of the splitter are 1.8mm diameter cords and have a length of 530 + -20mm. All outputs are terminated in SC / APC connectors.
- the splice tray can be fixed to the base by means of second fixing means, which are pivotable and allow the tray to pivot to facilitate access to it by an operator.
- second fixing means which are pivotable and allow the tray to pivot to facilitate access to it by an operator.
- One of the embodiments of the invention comprises a hinge as a pivotable element.
- the box can also comprise organizing means inside it to guide and store tubes, fibers, rabillos, splices, connectors and / or passive devices inside the box.
- the organizing means comprise flanges and clips for fixing wiring to the box.
- the organizing means may comprise a storage lathe (9) for receiving the lengths of the output fibers of the optical splitter.
- the outer connectors may comprise a plug (5) to maintain the tightness of the box, which plugs each of the outer connectors when they are not used to connect a connection.
- the other cable accesses can have a shutter that allows to keep the case tight.
- small box contemplates that the box maintains adequate proportions to be installed inside an outdoor cabinet. Realizations that do not respond to space limitations, which are referred to as “large box” maintain standard proportions that allow them to house more elements inside and thus offer more functionalities.
- One of the embodiments of the large box of the invention comprises that the first fixing means for attaching the lid to the base comprise clip-type closures (46) and a hinge (33). In this way, the lid and the base can be opened and closed, but they are always held together at least by the hinge.
- the present invention may additionally have universal accesses (38) in the base for multifiber cables.
- This embodiment has an internal distribution of the elements that allows loose tubes do not intersect at any point with the outputs of the dividers.
- a removable plate (41) with a cable entry can be installed in the large box embodiments, said plate is attached to the base with mooring means.
- the plate can be fixed both to the front and to the bottom of the box, so by removing the plate the cable can be prepared on the outside of the box and then reinsert the plate.
- the mooring means preferably screws, guarantee the perfect tightness of the assembly once secured.
- a particular embodiment of the invention contemplates that at least 5 splice trays are included inside the box.
- this embodiment of a large box with at least 5 trays is preferable since it offers more functionalities.
- the box of the present invention may comprise a second component type optical splitter fixed in one of the trays.
- the upper tray is preferably used.
- the box of the present invention may comprise a second cover and / or outer base to protect the inside of the box in case of accidental breakage.
- the present invention therefore develops a new solution that functions as an interconnection point between the power supply network and the operator dispersion network.
- the functionality and design of the box of the present invention allows the dispersion section to be shared with other operators, since it uses pre-connected outdoor connections and also allows a certain number of splice trays, a certain capacity for pipes in passage, trays destined to the change of section and / or trays destined to the accommodation of optical dividers.
- the use of a pre-connected cassette splitter located outside the splice trays is a solution that allows splicing trays to be free for other uses, which provides great functionality to the box and, together with the internal distribution of the elements , contributes to quick installation times facilitating such installation. Description of the drawings
- Figure 1 shows a detailed view of a first embodiment of the invention of small dimensions and suitable for placing in an outdoor cabinet, where the splice tray can be seen perpendicular to the base.
- Figure 2. Shows a second detail view of the first embodiment of the invention, where the splice tray is now shown in parallel position. Regarding the base.
- Figure 3. Shows a detailed view of a second embodiment of the invention of larger dimensions, the lid attached to the base by means of a hinge and other functionalities additional to the embodiment shown in Figures 1 and 2.
- Figure 4. Shows a view of the second embodiment of the invention with alternative accesses included in a removable plate.
- Figure 5. Shows a detailed view of the front part of the second embodiment of the invention, where all the connectors can be clearly seen.
- Figure 6 shows a detailed view of the removable plate, according to one of the embodiments of the invention.
- Figure 7 shows a plan view of the second embodiment of the invention where you can see the details of the organizing system.
- Figure 8 shows a detailed view of the second embodiment of the invention, where all the trays are shown in a vertical position with respect to the base.
- the outer optical terminal box (CTO) of the present invention is constituted, according to one of its embodiments shown in Figure 1, by a casing housing (1) of reduced dimensions or " small box ", appropriate for those locations, of the operator's fiber optic access network, where there are space limitations and the installation of a standard outdoor CTO is not possible.
- these dimensions will not exceed 195 x 220 x 120 mm (width x height x depth), which is perfectly appropriate for a general scenario of application in dispersed areas that are served from outdoor cabinets.
- the CTO allows the connection of individual connections. It has the capacity to serve up to 16 clients and is constituted by a substantially rectangular envelope, an organizer system of fibers and passive elements.
- the CTO has an access (2) that allows access to at least one pointed power cable.
- a cable gland may be included in said access.
- the installation can be done outdoors, either on facades, roofs or poles, although given its small size, it is very suitable for locations where there are space limitations, such as outdoor cabinets.
- the base of the CTO has the necessary elements for its fixation (45), which will allow its fastening by means of fixing elements such as screws and / or plugs, in addition to allowing the fixing to supports for CTO on concrete posts.
- the envelope is formed by a base and a cover, which can be replaced independently and are in contact by means of a gasket (10), so that when the box is closed the interior is completely waterproof.
- the cover can be separated from the base (3) according to this embodiment of the invention, according to which both are joined together by means of inserts and / or screws. Being designed for very small spaces, the use of a hinged lid is not considered adequate.
- the base of the box has at least one cable access (2) that is located at the bottom of the front of it. This access allows the entry of a pointed cable up to 16mm in diameter.
- the cable entry has an appropriate shutter that allows the box to be sealed, protecting it from dust and liquid ingress.
- the cable entry system will be reusable, so that the cables can be assembled and disassembled without the provision of auxiliary material and without the need to use heat shrink tubing.
- the base of the CTO box has, at the bottom of the front of it, 16 reinforced bayonet type adapters (4).
- the reinforced adapters resist the weather conditions in which the box is installed, providing protection to the corresponding low loss connectors arranged on the front of the base.
- All reinforced adapters, on the outside of the box, are protected by a suitable and impervious plug (5), which provides tightness and a minimum degree of protection of IP 65.
- these adapters allow connection of the SC / APC type connectors of the splitter exit doors.
- the distribution of the connectors as can be seen in the figures, is designed in such a way that the connection and disconnection of a connection can be carried out comfortably and does not affect the optical circuit of an adjacent connection.
- Each of these connectors, or input ports is perfectly identified from the outside of the box. Said identification can be done, for example, with screen-printed numbering next to each port and / or including the identification on the cover.
- FIG 2 it can be seen as part of the front panel (21) stands out in an embodiment of the invention to further facilitate the connection and disconnection of connections by an operator.
- the pre-connected connections compatible with this box will use a reinforced bayonet connector (4) which, once coupled to the CTO, guarantees sufficient environmental protection for weather conditions (minimum IP 65).
- a reinforced bayonet connector (4) which, once coupled to the CTO, guarantees sufficient environmental protection for weather conditions (minimum IP 65).
- minimum IP 65 For customer registration, it is not necessary to open the box to connect the pre-connected supply cables. Just remove the plug of the corresponding adapter and insert the cable connector, fixing it conveniently. In this way the access of the connections is made individually, without affecting any other element of the box in the process.
- the organizer system contained inside the box comprises all the necessary means and elements for correct guidance, respecting the radius of curvature of the fibers, from the connectorized outputs of the splitter to the internal part of the connection panel, where all positions are identified, and from the entrance of the Divider to the splice tray.
- the guidance includes guiding the loose tubes to the splice trays; the guidance of the rabillos (which contain fibers of low sensitivity to curvatures) and cords from the splice trays to the pane! of connection; guiding and storing the excess cable from the splitter outputs to the connection panel.
- Figure 1 shows the organizer system for the realization of the invention of small dimensions where the reserved space (6) for housing a pre-connected 1: 16 cassette splitter can be seen, with its outputs terminated in a SC / APC connector and the pointed entry.
- a divider of dimensions 100x50x10 mm can be used.
- thread guides (7) for guiding the splitter inlet to the splice tray (8).
- the outputs of the divider can lead to lengths, for which a storage lathe (9) is provided where to wind them.
- the splice tray (8) can pivot thanks to a hinge (23), adopting two different positions, perpendicular or parallel with respect to the base, as can be seen in Figures 1 and 2 respectively, which facilitates access to the tray by an operator.
- the size of the heat-shrink splice protector used once contracted is 45 mm long x 2.6 mm in diameter.
- the support to fix it is made of flexible material to allow a correct fixation that also absorbs small diameter tolerances in the splice protectors.
- a second embodiment of the invention contemplates measures more in accordance with the usual standards, which do not respond to any space limitation, and the CTO has approximate dimensions of 240 x 375 x 120 mm (width x height x depth).
- this second embodiment retains all the features, but also extends the functionalities as described below.
- the cover (32) is attached to the base (31) by means of a hinge (33) that makes it possible to open and close it, making it impossible to separate the base and the cover without causing it to break, once the box is closed.
- the cover includes a metal support (34) with a guide (36) through which a second support (35) slides at the base and retained by said guide, allowing the lid to be held open in at least two fixed working positions at 90 ° and approximately 130 ° from the base.
- a gasket (37) is available in the contact area between the cover and the base that guarantees the tightness of the assembly when the box is closed.
- the closure of the box is therefore watertight to prevent the entry of water or dust.
- the sealing of the box is done by mechanical or cold procedures, avoiding sealing processes that require flame or heat. When necessary, for maintenance or expansion, the boxes can be opened again and closed again without interrupting the circuits in operation.
- This alternative alternative of larger size has at least two entrances in the base (38) of the box or a double entrance that allows the access of a cable in passage, with a maximum modularity of 64 fo (type PKP).
- the cable entries are universal access, which avoids having to thread the loose tubes by oval or cable glands.
- FIG. 4 shows an alternative that also has two additional inputs (39) that, each of them, allows access to any of the following cable combinations:
- the central cable entries instead of being universal accesses as in figure 3, respond to oval entries (40) installed on a removable plate (41) at the base of the box, tied by means of a screw (43).
- the plate is removable, so that from the front of the box, shown in figure 5, the plate (41) containing the oval inlets (40), can be removed by manipulating the clamping screws (44) that fixes it to the front of the box to maintain the tightness.
- the advantage is that you can prepare the cable outside the box.
- Figure 6 shows a detailed view of the plate, which as a result of using oval entries that need to thread the cables, adds glands.
- Figure 7 shows how to fix the multifiber cable to the box, on the one hand, there is a flange system (71) for the retention of the cover and, on the other, some clips ( 72) for the retention of the aramid of said cables.
- a housing space (75) for a 1: 16 splitter type pre-connectorized cassette Directly on the base, there is a housing space (75) for a 1: 16 splitter type pre-connectorized cassette.
- the space has appropriate dimensions at least for models of dimensions 100x50x10 mm.
- Embodiments of the invention without size restrictions may have several trays (76).
- FIG 8 one of the preferred possibilities can be seen, located on the storage space and facilitating access to the different splice trays by rotating them around an element (81) that allows them to pivot, preferably a hinge, thus being upright when the box is installed.
- the minimum number of trays of trays contemplated in this second embodiment is 5, in order to allow a section change of the input cable to the box in passage (maximum 64 fo), if necessary and the installation of a 1x16 splitter (component type) in one of the trays.
- an additional tray can be provided in an alternative embodiment, so that the section change can be made without interfering with the feed trays.
- the splice trays accommodate optical fibers of type G652 and G657 without the risk of increased signal attenuation.
- Another embodiment of the invention has a second base, to which the organizer system of fibers and passive elements is attached in such a way that, in case of accidental breakage of the outer base or of the lid, it can be replaced without the need for reinstall these items.
- the materials used to make the cable splices are compatible with each other, with the cover materials and with other materials commonly used outdoors. These materials in contact with the outside are sufficiently resistant to fungi and solar radiation, keeping their color and resistance properties intact over the years.
- connection panel located on the outside of the box, and the opening of the box is not necessary for the customer registration process.
- the preconnected and reinforced customer connections will be connected to the assigned external position of the connection panel without opening the box.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Cable Accessories (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112017010559A BR112017010559A2 (pt) | 2014-11-19 | 2015-11-19 | ?caixa terminal ótica exterior?. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESU201431489 | 2014-11-19 | ||
ES201431489U ES1134583Y (es) | 2014-11-19 | 2014-11-19 | Caja terminal óptica exterior |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016079362A1 true WO2016079362A1 (es) | 2016-05-26 |
Family
ID=52008777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2015/070826 WO2016079362A1 (es) | 2014-11-19 | 2015-11-19 | Caja terminal óptica exterior |
Country Status (4)
Country | Link |
---|---|
AR (1) | AR109230A1 (es) |
BR (1) | BR112017010559A2 (es) |
ES (1) | ES1134583Y (es) |
WO (1) | WO2016079362A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112630918A (zh) * | 2020-12-01 | 2021-04-09 | 南京巍川科技有限公司 | 一种全绝缘光单元复合相线光缆的光纤引下装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2894250T3 (es) | 2014-04-14 | 2022-02-14 | Commscope Connectivity Belgica Bvba | Recinto de fibra óptica con cajón de gestión de cables |
US10288829B2 (en) | 2014-11-04 | 2019-05-14 | CommScope Connectivity Belgium BVBA | Enclosure for use in a fiber optic distribution network |
-
2014
- 2014-11-19 ES ES201431489U patent/ES1134583Y/es active Active
-
2015
- 2015-11-19 WO PCT/ES2015/070826 patent/WO2016079362A1/es active Application Filing
- 2015-11-19 BR BR112017010559A patent/BR112017010559A2/pt not_active Application Discontinuation
- 2015-11-20 AR ARP150103781A patent/AR109230A1/es unknown
Non-Patent Citations (1)
Title |
---|
"C aja terminal optica (CTO) .M A N U A L D E I N STALACIÓ N.Caja Preconectorizada para Exterior.Modelo omnireach OTE of ADC - KRONE", OMNIREACH FTTX SOLUTIONS., April 2010 (2010-04-01) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112630918A (zh) * | 2020-12-01 | 2021-04-09 | 南京巍川科技有限公司 | 一种全绝缘光单元复合相线光缆的光纤引下装置 |
CN112630918B (zh) * | 2020-12-01 | 2022-07-01 | 河北鸿宇通信器材有限公司 | 一种全绝缘光单元复合相线光缆的光纤引下装置 |
Also Published As
Publication number | Publication date |
---|---|
ES1134583U (es) | 2014-12-11 |
AR109230A1 (es) | 2018-11-14 |
BR112017010559A2 (pt) | 2018-02-27 |
ES1134583Y (es) | 2015-03-05 |
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