FR2559916A1 - Method, used in the connecting of optical fibres, for making and storing a length of fibre in reserve, and device relating to it. - Google Patents

Method, used in the connecting of optical fibres, for making and storing a length of fibre in reserve, and device relating to it. Download PDF

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Publication number
FR2559916A1
FR2559916A1 FR8402552A FR8402552A FR2559916A1 FR 2559916 A1 FR2559916 A1 FR 2559916A1 FR 8402552 A FR8402552 A FR 8402552A FR 8402552 A FR8402552 A FR 8402552A FR 2559916 A1 FR2559916 A1 FR 2559916A1
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Prior art keywords
fiber
reserve
length
walls
wound
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FR8402552A
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French (fr)
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FR2559916B1 (en
Inventor
Roger Jean-Marie Forite
Michel Jacques Marie Robillard
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Constr Telephoniques
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Constr Telephoniques
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    • 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
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4452—Distribution frames
    • G02B6/44526—Panels or rackmounts covering a whole width of the frame or rack
    • 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
    • G02B6/44528—Patch-cords; Connector arrangements in the system or in the box
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

The method consists in reeling the length of optical fibre 8, corresponding to the reserve provided, around a drum 3 whose diameter is in relation to the maximum curvature allowed by the characteristics of the fibre and then in allowing it to relax by itself within the limits imposed by the walls of the device which serves to house it. This device is in the form of a case 1, 2 comprising a central portion occupied by the drum 3 and an eccentric spindle 7 around which it can pivot in order to be released from the neighbouring cases and thus to become accessible. A removable individual lid can be provided for easy access to the reserve fibre or for ensuring its retention in the storage state. The invention has one particular application in distribution frames of telephone central offices using connections via fibre-optic cables.

Description

La présente invention concerne une méthode utilisée dans le rac- cordement de fibres optiques pour constituer et stocker un tronçon de fibre en réserve ainsi que le dispositif permettant de mettre en oeuvre la m6tho- de proposée. The present invention relates to a method used in the connection of optical fibers to constitute and store a section of fiber in reserve as well as the device making it possible to implement the proposed method.

Le réseau de vido-cornrnunications fait un large usage des câbles a fibres optiques pour véhiculer ses informations jusqu'aux installations d'usagers dont la desserte terminale ne peut s'effectuer qu'après une distribution appropriée des ombles. Cette distribution s'opère dans des cen tres de répartition ob le brassage des fibres se traduit concrètement par leur raccordement à des dispositifs de connexion conçus spécialement pour les fibres optiques. Or, le raccordement des cables à fibres optiques pose des problèmes qui n'existaient pas avec les cabales à fils métalliques.En effet, ces fibres sont fragiles et cassantes de sorte que, non seulement elles ne doivent pas etre pliées, mais les courbures qu'on leur impose ne doivent jamais etre inférieures à un rayon détermine par le fabricant. En outre, lors des opérations de connexion, de débranchement ou de rebranchement d'une fibre optique, une des difficultés rencontrées réside dans le risque de rupture accidentelle de la fibre, risque qu'actuellement encore il n'est pas possible d'écarter totalement. Il convient donc de conserver en réserve une longueur de fibre suffisante pour permettre d'effectuer les interventions nécessaires et remédier aux éventuelles ruptures de fibre. The video communications network makes extensive use of fiber optic cables to convey its information to user facilities whose terminal service can only be carried out after appropriate distribution of char. This distribution takes place in distribution centers where the stirring of the fibers concretely results in their connection to connection devices specially designed for optical fibers. However, the connection of optical fiber cables poses problems that did not exist with metal wire cabals. Indeed, these fibers are fragile and brittle so that not only should they not be bent, but the curvatures that 'they are imposed must never be less than a radius determined by the manufacturer. In addition, during the operations of connection, disconnection or reconnection of an optical fiber, one of the difficulties encountered lies in the risk of accidental breakage of the fiber, a risk that even today it is not yet possible to completely rule out . It is therefore advisable to keep in reserve a sufficient length of fiber to allow carrying out the necessary interventions and to remedy any broken fiber.

En conséquence, l'invention a pour objet de proposer une méthode simple et économique pour constituer et stocker un tronçon de fibre optique servant de réserve, tout en en assurant la manipulotion aisée, la protection mécanique et en respectant le rayon de courbure minimal de la fibre afin de lui conserver des caractéristiques de transmission de bonne qualité. Consequently, the object of the invention is to propose a simple and economical method for constituting and storing a section of optical fiber serving as a reserve, while ensuring easy handling, mechanical protection and respecting the minimum radius of curvature of the fiber in order to maintain good quality transmission characteristics.

Pour ce faire, l'invention propose d'enrouler la longueur de fibre correspondant à la réserve sur un support cylindrique ayant un rayon au moins égal au rayon minimal requis, puis d'utiliser la propriété de mémoire qu'ont les fibres optiques qui tendent toujours à reprendre une position rectiligne pour laisser la fibre se détendre d'ellermême dans les limites imposées par les parois du dispositif qui lui sert de logement. Ce dispositif se présente ainsi sous la forme d'un bottier dont les parois déterminent ces limites et dont la portie centrale est occupée par ledit support cylindrique. To do this, the invention proposes winding the length of fiber corresponding to the reserve on a cylindrical support having a radius at least equal to the minimum radius required, then using the memory property of the optical fibers which tend always take up a straight position to let the fiber relax itself within the limits imposed by the walls of the device which serves as its housing. This device is thus in the form of a shoemaker whose walls determine these limits and whose central portal is occupied by said cylindrical support.

Mais le dispositif doit également permettre d'accéder et de manipuler aisément la fibre optique. Or, dans les centres de répartition, les connecteurs de fibres optiques sont proches les uns des autres de sorte qu'il en est de meme des dispositifs logeant'les tronçons de fibres en réserve qui leur correspondent respectivement. Aussi, pour que la fibre soit facilement accessible, le dispositif de l'invention comporte une ouverture excentrée servant de logement à un axe commun à un morne ensemble de tels dispositifs ; de la sorte, il suffit de faire pivoter le dispositif sur la fibre duquel on veut intervenir pour le dégager de ses voisins et pour que la fibre qu'il loge soit d'accès et de manipulation aisés.Un couvercle amovible peut être prévu pour parfaire le maintien et la protection de la fibre dans son dispositif de réserve. But the device must also allow easy access and manipulation of the optical fiber. However, in the distribution centers, the optical fiber connectors are close to each other so that the same is true of devices housing the fiber sections in reserve which correspond to them respectively. Also, so that the fiber is easily accessible, the device of the invention comprises an eccentric opening serving as a housing for an axis common to a dreary set of such devices; in this way, it suffices to pivot the device on the fiber of which one wishes to intervene to free it from its neighbors and so that the fiber which it accommodates is of easy access and manipulation. A removable cover can be provided to perfect maintaining and protecting the fiber in its reserve device.

Les différents objets et caractéristiques de l'invention ressortiront de la description qui va être faite maintenant, à titre d'exemple non limitatif, en se reportant à la figure annexée qui représente un ensemble de dispositifs pour réserves de fibres optiques et, plus spécialement, deux dispositifs illustrant la méthode préconisée par l'invention pour constituer les tronçons de fibre en réserve. The various objects and characteristics of the invention will emerge from the description which will now be given, by way of nonlimiting example, with reference to the appended figure which represents a set of devices for optical fiber reserves and, more particularly, two devices illustrating the method recommended by the invention for constituting the sections of fiber in reserve.

Comme on peut le voir sur la figure, l'ensemble de dispositifs est constitué par des bottiers identiques semblables aux bottiers 1 et 2. As can be seen in the figure, the set of devices consists of identical shoemakers similar to shoemakers 1 and 2.

Chacun de ces bottiers est formé par un fond et quatre parois, sa partie centrale étant occupée par un tambour 3 dont le rayon est au moins égal au rayon minimal de courbure acceptable par les fibres pour qu'elles conservent leurs caractéristiques nominales de transmission. Deux ouvertures 4 et 5 sont prévues dans chaque bottier pour permettre respectivement l'introduction de la fibre issue du câble 6 dans le bottier et sa sortie vers le connecteur correspondant ; leur forme oblongue réduit les frottements des bords de l'ouverture sur la fibre lors de la manoeuvre du bottier.Each of these shoemakers is formed by a bottom and four walls, its central part being occupied by a drum 3 whose radius is at least equal to the minimum radius of curvature acceptable by the fibers so that they retain their nominal transmission characteristics. Two openings 4 and 5 are provided in each case to allow respectively the introduction of the fiber from the cable 6 into the case and its exit to the corresponding connector; their oblong shape reduces the friction of the edges of the opening on the fiber during the operation of the shoemaker.

Un des angles de ce dernier présente un orifice dans lequel se loge l'axe 7 autour duquel chaque bottier peut pivoter de manière à occuper la position illustrée par le bottier 1 ou celle du boitier 2. Un couvercle individuel peut être prévu pour chaque bottier mais, étant donné qu'ils sont juxtopo- sés, le fond de l'un sert de couvercle à son voisin de sorte qu'il suffit d'un seul couvercle pour le bottier d'extrémité de l'ensemble, en l'occurrence pour le bottier 2.One of the angles of the latter has an orifice in which is housed the axis 7 around which each bootmaker can pivot so as to occupy the position illustrated by bootmaker 1 or that of case 2. An individual cover can be provided for each bootmaker but , since they are juxtaposed, the bottom of one serves as a cover for its neighbor so that a single cover is sufficient for the end case of the assembly, in this case for the boot maker 2.

La méthode de l'invention pour constituer le tronçon de réserve de fibre optique de chaque connecteur consiste donc à faire pivoter le boîtier qui lui correspond autour de-l'axe 7 de manière à le dégager de ses voisins pour l'amener dans la position du bottier 1 de la figure . La fibre optique 8 appropriée, issue du câble 6, est alors introduite par l'ouverture 4 à l'intérieur du boitier. Elle est enroulée une ou plusieurs fois autour du tambour 3 selon la réserve de fibre souhaitée puis on la fait sortir du boltier par l'ouverture 5 sur une longueur au moins égale à celle nécessaire au raccordement de la fibre avec le connecteur optique. The method of the invention for constituting the reserve section of optical fiber of each connector therefore consists in pivoting the box which corresponds to it around the axis 7 so as to release it from its neighbors in order to bring it into the position of bootmaker 1 in the figure. The appropriate optical fiber 8, coming from the cable 6, is then introduced through the opening 4 inside the housing. It is wrapped one or more times around the drum 3 according to the desired fiber reserve, then it is taken out of the bolt mill through the opening 5 over a length at least equal to that necessary for connecting the fiber with the optical connector.

Le bottier est ensuite ramené dans la position de ses voisins en pivotant autour de llaxe 7. C'est alors -c'est-à-dire dès que la partie 9 de la fibre n'est plus soumise à la traction exercée par l'opérateur- que l'on tire avontage du fait qu'une fibre optique tend toujours à etre rectiligne.The bootmaker is then brought back into the position of its neighbors by pivoting around the axis 7. This is then -that is to say as soon as the part 9 of the fiber is no longer subjected to the traction exerted by the operator- that we take advantage of the fact that an optical fiber always tends to be straight.

En effet, on remarque qu'il existe un espace libre entre la périphérie du tambour 3 et les parois du bottier de sorte que, dès que la partie 9 de la fibre n'est plus soumise à une traction, les spires enroulées sur le tambour 3 se détendent jusqu'à ce qu'elles viennent buter contre les parois de leur boîtier, comme illustré par le bottier 2.Les opérations de raccordement entre la fibre et le connecteur peuvent désormais etre réalisées ; on notera à ce propos que la longueur initiale 9 de la fibre hors bottier n'est pas critique pourvu qu'elle soit suffisante pour permettre le retrait de fibre vers l'intérieur du bottier, retrait qui se produit lorsque les spires autour du tambour 3 se détendent ; en outre, ces spires étant détendues, il est toujours possible de tirer sur la partie.8' de la fibre à roccorder pour gagner la longueur nécessaire.Indeed, it is noted that there is a free space between the periphery of the drum 3 and the walls of the case so that, as soon as the part 9 of the fiber is no longer subjected to a traction, the turns wound on the drum 3 relax until they abut against the walls of their casing, as illustrated by the case 2. The operations of connection between the fiber and the connector can now be carried out; it will be noted in this regard that the initial length 9 of the fiber outside the case is not critical provided that it is sufficient to allow the withdrawal of fiber towards the inside of the case, withdrawal which occurs when the turns around the drum 3 to relax ; moreover, these loops being relaxed, it is always possible to pull on the part. 8 ′ of the fiber to be joined to gain the necessary length.

Si, pour des raisons techniques ou accidentelles, la connexion doit etre refaite, selon la longueur de fibre nécessaire, on peut tirer la partie 9' sur quelques centimètres. Si cette longueur est insuffisante, on fait pivoter le bottier concerné autour de l'axe 7 pour l'amener dans la position du bottier 1. Cette manoeuvre fait que les spires se reserrent autour du tambour 3 dans le cas où l'extrémité de la fibre 9' est empri- sonnée dans une position fixe. On dégage alors une des spires enroulées autour du tambour ou détendue autour de celui-ci, spire qui, selon le cas, peut donc se détendre entre celui-ci et les parois du bottier. Comme on l'a vu précédemment, l'opérateur ramène alors le bottier dons la position de ses voisins et la nouvelle connexion de la fibre peut intervenir. If, for technical or accidental reasons, the connection has to be redone, depending on the length of fiber required, the 9 'part can be pulled a few centimeters. If this length is insufficient, the bootmaker concerned is pivoted around the axis 7 to bring it into the bootmaker position 1. This maneuver causes the turns to tighten around the drum 3 in the case where the end of the fiber 9 'is trapped in a fixed position. One then releases one of the turns wound around the drum or relaxed around it, turn which, as the case may be, can therefore relax between the latter and the walls of the shoemaker. As we have seen previously, the operator then brings the case back to the position of its neighbors and the new connection of the fiber can occur.

D'autres manoeuvres identiques de connexion sont donc possibles tant qu'il existe de la fibre enroulée autour du tambour 3. Les possibilités de réserve sont évidemment épuisées lorsque la fibre optique traverse le boîtier en passant directement de l'ouverture 4 à l'ouverture 5. Other identical connection maneuvers are therefore possible as long as there is fiber wound around the drum 3. The reserve possibilities are obviously exhausted when the optical fiber passes through the housing passing directly from the opening 4 to the opening 5.

Il est bien évident que la description qui précède n'a été faite qu'à titre d'exemple non limitatif et que d'autres variantes peuvent etre envisagées sans sortir pour autant du cadre de l'invention.  It is obvious that the above description has been given only by way of nonlimiting example and that other variants can be envisaged without departing from the scope of the invention.

Claims (6)

REVENDICATIONS 1. Méthode utilise pour le raccordement de fibres optiques pour constituer et stocker un tronçon de fibre en réserve, caractérisée par le fait qu'elle consiste à enrouler en une ou plusieurs spires la longueur de fibre correspondant à la réserve sur un support cylindrique ayant un rayon au moins égal au rayon minimal requis pour que la fibre conserve ses quali- tés de transmission, puis d'utiliser la propriété de mémoire des fibres optiques qui tendent toujours à reprendre une position rectiligne pour laisser la partie de fibre enroulée se détendre d'elle-même dans les limites imposées par les parois du dispositif qui lui sert de logement, la longueur de fibre détendue logée entre le support cylindrique et les parois du dispositif constituant la réserve et pouvant se trouver de nouveau d'elle-même enroulée sur ledit support si le dispositif est manoeuvré alors que les extrémités de la fibre optique restent fixes. 1. Method used for the connection of optical fibers to constitute and store a section of fiber in reserve, characterized in that it consists in winding in one or more turns the length of fiber corresponding to the reserve on a cylindrical support having a radius at least equal to the minimum radius required for the fiber to retain its transmission qualities, then to use the memory property of optical fibers which always tend to return to a rectilinear position to let the wound part of the fiber relax itself within the limits imposed by the walls of the device which serves as its housing, the length of relaxed fiber housed between the cylindrical support and the walls of the device constituting the reserve and which can again be wound on itself support if the device is operated while the ends of the optical fiber remain fixed. 2. Méthode utilisée pour le raccordement de fibres optiques pour constituer et stocker un tronçon de fibre en réserve conforme à la première revendication, coractérisée por le fait que pour utiliser une partie de la fibre en réserve il suffit de tirer sur la portion de fibre située entre le dispositif et le connecteur, la longueur de Fibre ainsi prélevée sur la réserve provenant de la portie de fibre détendue entre le support cylindrique et les parois du dispositif. 2. Method used for the connection of optical fibers to constitute and store a section of fiber in reserve according to the first claim, coractérisé por the fact that to use a part of the fiber in reserve it is enough to pull on the portion of fiber located between the device and the connector, the length of Fiber thus taken from the reserve coming from the fiber port relaxed between the cylindrical support and the walls of the device. 3. Méthode utilisée pour le raccordement de fibres optiques pour constituer et stocker un tronçon de fibre en réserve conforme à la premibre revendication, caractérisée par le fait que pour utiliser une partie de la fibre en réserve il suffit de dérouler une spire de la longueur de fibre enroulée sur le support cylindrique et de laisser de nouveau la fibre en réserve se détendre. 3. Method used for the connection of optical fibers to constitute and store a section of fiber in reserve according to the first claim, characterized in that to use a part of the fiber in reserve it suffices to unroll a turn of the length of fiber wound on the cylindrical support and let the fiber in reserve relax again. 4. Méthode utilisée pour le raccordement de fibres optiques pour constituer et stocker un tronçon de fibre en réserve conforme à la troisième revendication, caractérisée par le fait que la réserve de fibre optique du dispositif est épuisée lorsque la fibre optique traverse directement ledit dispositif sans qu'aucune longueur de fibre ne soit enroulée autour du support cylindrique. 4. Method used for the connection of optical fibers to constitute and store a section of fiber in reserve according to the third claim, characterized in that the optical fiber reserve of the device is exhausted when the optical fiber passes directly through said device without qu '' no fiber length is wrapped around the cylindrical support. 5. Dispositif pour mettre en oeuvre la méthode conforme aux revendications précédentes, caractérisé par le fait qu'il comporte un bottier (1,2) dont la partie centrale est occupée par un tambour (3) sur lequel est enroulée la fibre conservée en réserve et dont les parois déterminent les limites dans lesquelles peut se détendre la réserve de fibre enroulée sur ledit tambour, le bottier (1, 2) comportant une ouverture excentrée servant de logement à un axe (7) commun à un même ensemble de bottiers de telle sorte qu'il puisse pivoter autour de cet axe (7) pour se dégager de ses voisins et pour que la fibre qu'il loge soit d'accès et de manipulation aises. 5. Device for implementing the method according to the preceding claims, characterized in that it comprises a shoemaker (1,2) whose central part is occupied by a drum (3) on which is wound the fiber kept in reserve and whose walls determine the limits within which the reserve of fiber wound on said drum can relax, the shoemaker (1, 2) having an eccentric opening serving as a housing for an axis (7) common to the same set of shoemakers of such so that it can pivot around this axis (7) to disengage from its neighbors and so that the fiber which it accommodates is of easy access and handling. 6. Dispositif conforme à la cinquième revendication, caractérisé par le fait que les parois du bottier orientées vers le câble (6) à fibres optiques et vers le connecteur comportent une ouverture (4, 5) pour le pas- sage de la fibre optique et constituent l'entrée et la sortie du tronçon de fibre en réserve.  6. Device according to the fifth claim, characterized in that the walls of the case oriented towards the fiber optic cable (6) and towards the connector have an opening (4, 5) for the passage of the optical fiber and constitute the inlet and the outlet of the section of fiber in reserve.
FR8402552A 1984-02-21 1984-02-21 METHOD USED IN THE CONNECTION OF OPTICAL FIBERS TO CONSTITUTE AND STORE A RESERVE FIBER SECTION AND DEVICE RELATING THERETO Expired FR2559916B1 (en)

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Cited By (16)

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EP0215520A2 (en) * 1985-09-11 1987-03-25 Philips Patentverwaltung GmbH Process for establishing a connection between two optical fibres, and arrangement to perform this process
DE3540472A1 (en) * 1985-11-12 1987-05-14 Krone Ag Device for storing fibres of optical fibre cables in distribution devices in the telecommunication network
EP0222691A2 (en) * 1985-11-12 1987-05-20 KRONE Aktiengesellschaft Device for the preservation of the fibres of glass fibre cables in the distribution assemblies of a telecommunication network
WO1989005989A1 (en) * 1987-12-23 1989-06-29 British Telecommunications Public Limited Company Mounting assembly for optical equipment
EP0333316A2 (en) * 1988-03-15 1989-09-20 Sumitomo Electric Industries Limited Connecting box for multi-optical fiber cable
FR2663917A1 (en) * 1990-06-29 1992-01-03 Cit Alcatel MODULAR DEVICE FOR STORING RESERVES OF TRANSMISSION SUPPORT ON LINKS, ESPECIALLY FIBER OPTIC.
TR24854A (en) * 1989-08-21 1992-07-01 Thomson Brandt Gmbh A LAYOUT FOR EXECUTING THE PROCEDURE WITH A PROCEDURE FOR RELATING PARITY SYMBOLS.
DE9305819U1 (en) * 1993-04-19 1993-06-09 Siemens AG, 8000 München Cabinet-shaped fiber optic distributor
US5247603A (en) * 1992-01-24 1993-09-21 Minnesota Mining And Manufacturing Company Fiber optic connection system with exchangeable cross-connect and interconnect cards
EP0579019A1 (en) * 1992-07-17 1994-01-19 RXS Kabelgarnituren Gesellschaft mit beschränkter Haftung Optical fibre splice cassette lay device for cable muff
EP0583541A1 (en) * 1992-08-05 1994-02-23 LITEF GmbH Enclosure for optical fibre
FR2697349A1 (en) * 1992-10-26 1994-04-29 Morel Atel Electromec Connection box for optical fibers.
WO1994023324A1 (en) * 1993-04-01 1994-10-13 N.V. Raychem S.A. Optical fibre organizer
WO1995007483A1 (en) * 1993-09-08 1995-03-16 N.V. Raychem, S.A. Optical fibre organizer
WO1995025977A1 (en) * 1992-10-26 1995-09-28 Etablissements Morel - Ateliers Electromecaniques De Favieres Optical fibre connecting box
FR2748576A1 (en) * 1996-05-09 1997-11-14 Crespel Daniel Cassette for holding connected ends of optical fibres

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EP0215520A3 (en) * 1985-09-11 1988-11-30 Philips Patentverwaltung Gmbh Process for establishing a connection between two optical fibres, and arrangement to perform this process
EP0215520A2 (en) * 1985-09-11 1987-03-25 Philips Patentverwaltung GmbH Process for establishing a connection between two optical fibres, and arrangement to perform this process
DE3540472A1 (en) * 1985-11-12 1987-05-14 Krone Ag Device for storing fibres of optical fibre cables in distribution devices in the telecommunication network
EP0222691A2 (en) * 1985-11-12 1987-05-20 KRONE Aktiengesellschaft Device for the preservation of the fibres of glass fibre cables in the distribution assemblies of a telecommunication network
US4770357A (en) * 1985-11-12 1988-09-13 Krone Aktiengesellschaft Arrangement for storage of the fibers of glass-fiber cables in distribution devices in a telecommunication network
EP0222691A3 (en) * 1985-11-12 1989-08-09 Krone Ag Device for the preservation of the fibres of glass fibre cables in the distribution assemblies of a telecommunication network
US5080459A (en) * 1987-12-23 1992-01-14 British Telecommunications Public Limited Company Mounting assembly for optical equipment
WO1989005989A1 (en) * 1987-12-23 1989-06-29 British Telecommunications Public Limited Company Mounting assembly for optical equipment
AU616467B2 (en) * 1987-12-23 1991-10-31 British Telecommunications Public Limited Company Mounting assembly for optical equipment
EP0333316A2 (en) * 1988-03-15 1989-09-20 Sumitomo Electric Industries Limited Connecting box for multi-optical fiber cable
EP0333316A3 (en) * 1988-03-15 1990-09-12 Sumitomo Electric Industries Limited Connecting box for multi-optical fiber cable
TR24854A (en) * 1989-08-21 1992-07-01 Thomson Brandt Gmbh A LAYOUT FOR EXECUTING THE PROCEDURE WITH A PROCEDURE FOR RELATING PARITY SYMBOLS.
FR2663917A1 (en) * 1990-06-29 1992-01-03 Cit Alcatel MODULAR DEVICE FOR STORING RESERVES OF TRANSMISSION SUPPORT ON LINKS, ESPECIALLY FIBER OPTIC.
EP0464570A1 (en) * 1990-06-29 1992-01-08 Alcatel Cit Modular device for storing reserves of transmission means in a transmission line, notably fibre optic
US5247603A (en) * 1992-01-24 1993-09-21 Minnesota Mining And Manufacturing Company Fiber optic connection system with exchangeable cross-connect and interconnect cards
EP0579019A1 (en) * 1992-07-17 1994-01-19 RXS Kabelgarnituren Gesellschaft mit beschränkter Haftung Optical fibre splice cassette lay device for cable muff
US5341451A (en) * 1992-07-17 1994-08-23 Rxs Schrumpftechnik-Garnituren Gmbh Arrangement for depositing splicing cassettes for light waveguides within a cable sleeve
EP0583541A1 (en) * 1992-08-05 1994-02-23 LITEF GmbH Enclosure for optical fibre
WO1995025977A1 (en) * 1992-10-26 1995-09-28 Etablissements Morel - Ateliers Electromecaniques De Favieres Optical fibre connecting box
FR2697349A1 (en) * 1992-10-26 1994-04-29 Morel Atel Electromec Connection box for optical fibers.
EP0594913A1 (en) * 1992-10-26 1994-05-04 Etablissements Morel - Ateliers Electromecaniques De Favieres Optical fibre distribution centre
WO1994023324A1 (en) * 1993-04-01 1994-10-13 N.V. Raychem S.A. Optical fibre organizer
TR28746A (en) * 1993-04-01 1997-02-18 Raychem Sa Nv Optical fiber regulator.
US5751882A (en) * 1993-04-01 1998-05-12 N.V. Raychem S.A. Optical fibre organizer
DE9305819U1 (en) * 1993-04-19 1993-06-09 Siemens AG, 8000 München Cabinet-shaped fiber optic distributor
WO1995007483A1 (en) * 1993-09-08 1995-03-16 N.V. Raychem, S.A. Optical fibre organizer
TR28758A (en) * 1993-09-08 1997-02-28 Raychem Sa Nv Optical fiber organizer with first and second holes through which optical fibers can pass.
US5717811A (en) * 1993-09-08 1998-02-10 N.V. Rachem S.A. Optical fiber organizer
AU698822B2 (en) * 1993-09-08 1998-11-05 N.V. Raychem S.A. Optical fibre organizer
FR2748576A1 (en) * 1996-05-09 1997-11-14 Crespel Daniel Cassette for holding connected ends of optical fibres

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