WO2005086289A2 - Connector provided with a cable holding system - Google Patents

Connector provided with a cable holding system Download PDF

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Publication number
WO2005086289A2
WO2005086289A2 PCT/IB2005/050821 IB2005050821W WO2005086289A2 WO 2005086289 A2 WO2005086289 A2 WO 2005086289A2 IB 2005050821 W IB2005050821 W IB 2005050821W WO 2005086289 A2 WO2005086289 A2 WO 2005086289A2
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WO
WIPO (PCT)
Prior art keywords
cable
connector
central wire
conical
piece
Prior art date
Application number
PCT/IB2005/050821
Other languages
French (fr)
Other versions
WO2005086289A3 (en
Inventor
Bernard Jenzer
Original Assignee
Fischer Connectors Holding S.A.
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 Fischer Connectors Holding S.A. filed Critical Fischer Connectors Holding S.A.
Publication of WO2005086289A2 publication Critical patent/WO2005086289A2/en
Publication of WO2005086289A3 publication Critical patent/WO2005086289A3/en

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
    • G02B6/24—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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3817—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing optical and electrical conductors
    • 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
    • G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
    • G02B6/3888—Protection from over-extension or over-compression
    • 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
    • G02B6/4471—Terminating devices ; Cable clamps
    • G02B6/4477—Terminating devices ; Cable clamps with means for strain-relieving to interior strengths element

Definitions

  • Cables containing optical fiber most often include a reinforcing reinforcement whose presence is made necessary because of the fact that optical fibers are delicate and much more sensitive to the effects of traction or bending than a traditional copper wire.
  • the purpose of the reinforcement is to withstand most, if not all, of the mechanical stresses that the cable can undergo. In this way, the sensitive elements of the cable, eg the optical fibers, are preserved.
  • armatures for example in the form of strands, braids or cables made of various materials (Keviar, steel, or the like).
  • the reinforcement can be located in the center of the cable or be distributed around the periphery. Various combinations are also possible.
  • the central frame in the form of a cable (eg steel wire), has several advantages, in particular a high resistance to traction and bending.
  • the sensitive elements optical fiber (s), electrical wire (s)
  • the frame has several advantages, in particular a high resistance to traction and bending.
  • the sensitive elements optical fiber (s), electrical wire (s)
  • FIG. 1 shows schematically such a construction.
  • the cable 24 consists of a sheath 25 which surrounds an electrical shield 26 (eg braided copper). Inside of it are arranged an optical fiber 27 and an electric wire 29 as well as a central wire 28 (eg steel) which plays the role of reinforcement.
  • the difficulty lies in the mechanical connection of such a cable with a connector, a solid connection being generally required between the housing of the connector and the central wire 28.
  • electrical requirements may require a connection between the connector housing and the electrical shielding 26.
  • One of the aims of the invention consists in providing a connector with a simple and reliable retaining system for a cable as shown in FIG. 1.
  • the connector according to the invention which comprises a conical piece in the form of a sleeve which is adapted to surround the central wire of the cable.
  • the invention is characterized by the fact that the conical piece is not flexible and that it is surrounded by a clamping piece mounted to slide relative to the conical piece, so that a traction exerted on the cable results in a relative displacement of the tapered piece relative to the clamping piece and so
  • the invention provides a self-tightening system which aims to induce an increasing retaining force when traction is exerted on the cable.
  • Figure 1 shows a hybrid cable that can be used in the context of the present invention.
  • Figure 2 shows a connector, without cable, which includes a restraint system according to the invention.
  • Figure 3 shows the same connector, with cable, as that of Figure 2.
  • Figures 2 and 3 show schematically a possible embodiment of the invention.
  • the flexible conical part 5 acts as a clamp serving to firmly hold the central wire 28 (eg steel) which is located in the center of the cable 24.
  • An initial tightening of the conical piece 5 on the central wire 28 is obtained by the lateral force exerted by the clamping piece 8, itself also in the form of a conical sleeve which surrounds and serves the conical piece 5.
  • the clamping piece 8 exerts a radial force against the conical part 5 following the axial displacement (which occurred during assembly of the connector 31 around the cable 24) of the clamping sleeve 10 in the non-rotation sleeve 11. In this configuration, the conical part 5 is firmly held in position against the stopper 9.
  • the clamping piece 8 and the stop 9 have lateral openings (not shown) which allow the free passage of the electric wire 29 and the optical fiber 27.
  • FIG. 3 also shows optional reinforcing fibers 30 which are arranged towards the free end of the cable 24.
  • the entire device is retained in the connector 31 by a closure element 13.
  • the anti-rotation part 11 makes it possible to avoid twisting of the optical fiber 27 and of the electric wire 29 relative to the rest of the connector 31 when it is closed , while remaining orientable as desired around the axis of the connector 31 (the counter-part of the anti-rotation part 11 is not shown for reasons of clarity).
  • the closing element 13 is threaded on the cable 24 •
  • the end piece 12 is put in place on the cable 24 •
  • the maintenance of the central wire 28 by the conical part 5 has a self-tightening characteristic.
  • a pull on the cable 24 increases the tightening on the central wire 28.
  • Significant retaining forces can be obtained without resorting to the use of adhesive, an impractical system which risks contaminating the system.
  • the device can ensure both the retention of the central wire 28, of an external reinforcement as well as the electrical contact of the shield 26.
  • the system is simple to use, no manipulation of small components (screws etc.) is necessary. The system can even be configured to be hand tight, without any special tools.
  • the system can be made watertight with seals 21, 22,23.
  • the system is equipped with an anti-rotation device, preventing accidental entrainment of the cable tie when screwing the connector closure, thus protecting the optical fibers, electrical wires and their terminations.
  • the system can be adapted to a multitude of cable constructions to efficiently use all the reinforcing elements (reinforcements) present, without having to give up sealing or shielding.

Abstract

The inventive connector (31) is used for a cable (24) consisting of a sensitive element (27) such as an optical fibre and a central wire (28) forming strengthening armour. Said connector comprises a conical part (5) in the form of a sleeve which is adapted in such a way that it encompasses and clamps said central wire (28) and is characterised in that said conical part (5) is embodied such that it is flexible and is enclosed by a clamping part (8) which is mounted slidingly with respect to said conical part (5) in such a way that a traction applied to the cable results in the relative displacement of the conical part (5) with respect to the clamping part (8) and the clamping of the conical part (5) to the central wire (28) is increased.

Description

Connecteur avec système de retenue de câble Connector with cable restraint system
Domaine de l'inventionField of the invention
La présente invention concerne la fixation d'un câble à un connecteur. Elle concerne en particulier la fixation des câbles qui comportent au moins un fil, p. ex. une fibre optique, qui est sensible aux sollicitations mécaniques que peuvent subir les câbles. L'invention peut, notamment, être avantageusement utilisée avec des connecteurs hybrides électrique-optique.The present invention relates to the attachment of a cable to a connector. It relates in particular to the fixing of cables which comprise at least one wire, p. ex. an optical fiber, which is sensitive to the mechanical stresses that cables can undergo. The invention can, in particular, be advantageously used with hybrid electrical-optical connectors.
Etat de la techniqueState of the art
II est connu que tout connecteur électrique ou optique doit comporter un dispositif qui attache le câble au connecteur. Voir en particulier la demande de brevet européen EP 1 101 135 A1 déposée par la demanderesse.It is known that any electrical or optical connector must include a device which attaches the cable to the connector. See in particular European patent application EP 1 101 135 A1 filed by the applicant.
Les câbles contenant de la fibre optique comportent le plus souvent une armature de renforcement dont la présence est rendue nécessaire à cause du fait que les fibres optiques sont délicates et bien plus sensibles aux effets de traction ou de flexion qu'un traditionnel fil de cuivre. L'armature a pour but de supporter la plus grande partie, voire la totalité, des sollicitations mécaniques que peuvent subir le câble. De la sorte, les éléments sensibles du câble, p.ex. les fibres optiques, sont préservées. Il existe divers modes de réalisation d'armatures, par exemple sous forme de torons, de tresses ou de câbles en divers matériaux (Keviar, acier, ou autres). L'armature peut se situer au centre du câble ou être répartie en périphérie. Diverses combinaisons sont également possibles.Cables containing optical fiber most often include a reinforcing reinforcement whose presence is made necessary because of the fact that optical fibers are delicate and much more sensitive to the effects of traction or bending than a traditional copper wire. The purpose of the reinforcement is to withstand most, if not all, of the mechanical stresses that the cable can undergo. In this way, the sensitive elements of the cable, eg the optical fibers, are preserved. There are various embodiments of armatures, for example in the form of strands, braids or cables made of various materials (Keviar, steel, or the like). The reinforcement can be located in the center of the cable or be distributed around the periphery. Various combinations are also possible.
L'armature centrale, en forme de câble (p.ex. fil en acier) présente plusieurs avantages, en particulier une résistance élevée à la traction et à la flexion. Dans ce cas, les éléments sensibles (fibre(s) optique(s), fil(s) électrique(s)) sont disposés autour de l'armature.The central frame, in the form of a cable (eg steel wire), has several advantages, in particular a high resistance to traction and bending. In this case, the sensitive elements (optical fiber (s), electrical wire (s)) are arranged around the frame.
La figure 1 schématise une telle construction. Le câble 24 est constitué d'une gaine 25 qui entoure un blindage électrique 26 (p.ex. tressé de cuivre). A l'intérieur de celui-ci sont disposées une fibre optique 27 et un fil électrique 29 ainsi qu'un fil central 28 (p.ex. en acier) qui joue le rôle d'armature.Figure 1 shows schematically such a construction. The cable 24 consists of a sheath 25 which surrounds an electrical shield 26 (eg braided copper). Inside of it are arranged an optical fiber 27 and an electric wire 29 as well as a central wire 28 (eg steel) which plays the role of reinforcement.
La difficulté réside dans la liaison mécanique d'un tel câble avec un connecteur, une liaison solide étant généralement requise entre le boîtier du connecteur et le fil central 28.The difficulty lies in the mechanical connection of such a cable with a connector, a solid connection being generally required between the housing of the connector and the central wire 28.
Par ailleurs, des impératifs électriques peuvent requérir une liaison entre le boîtier du connecteur et le blindage électrique 26.Furthermore, electrical requirements may require a connection between the connector housing and the electrical shielding 26.
Les méthodes de fixation connues à ce jour sont complex-es, nécessitent une opération fastidieuse de terminaison, utilisent fréquemment des a dhésifs dont la manipulation n'est pas aisée. En outre, lors d'une trop forte traction su r le câble, ce dernier peut se détacher du connecteur.The fixing methods known to date are complex, they require a tedious termination operation, frequently use adhesives, the handling of which is not easy. In addition, when the cable is pulled too hard, the cable may detach from the connector.
Résumé de l'inventionSummary of the invention
Un des buts de l'invention consiste à munir un connecteur d'un système de retenue simple et fiable pour un câble comme représenté sur la figure 1.One of the aims of the invention consists in providing a connector with a simple and reliable retaining system for a cable as shown in FIG. 1.
Ce but est atteint grâce au connecteur selon l'invention qui comprend une pièce conique en forme de manchon qui est adaptée pour entourer le fil central du câble. L'invention se caractérise par le fait que la pièce coniq ne est flexible et qu'elle est entourée d'une pièce de serrage montée coulissante relativement à la pièce conique, de manière à ce qu'une traction exercée sur le câble résulte en un déplacement relatif de la pièce conique par rapport à la pièce de serrage et c|ue de la sorte, le serrage de ladite pièce conique sur ledit fil central augmente.This object is achieved thanks to the connector according to the invention which comprises a conical piece in the form of a sleeve which is adapted to surround the central wire of the cable. The invention is characterized by the fact that the conical piece is not flexible and that it is surrounded by a clamping piece mounted to slide relative to the conical piece, so that a traction exerted on the cable results in a relative displacement of the tapered piece relative to the clamping piece and so |, the tightening of said tapered piece on said central wire increases.
En résumé, l'invention offre un système auto-serrant q ui vise à induire une force croissante de retenue lorsqu'une traction est exercée sur le câble. Description détaillée de l'inventionIn summary, the invention provides a self-tightening system which aims to induce an increasing retaining force when traction is exerted on the cable. Detailed description of the invention
L'invention sera mieux comprise ci-après au moyen d'une description détaillée qui inclut un exemple illustré par des figures.The invention will be better understood below by means of a detailed description which includes an example illustrated by figures.
La figure 1 présente un câble hybride pouvant être utilisé dans le cadre de la présente invention.Figure 1 shows a hybrid cable that can be used in the context of the present invention.
La figure 2 montre un connecteur, sans câble, qui comporte un système de retenue selon l'invention. La figure 3 présente le même connecteur, avec câble, que celui de la figure 2.Figure 2 shows a connector, without cable, which includes a restraint system according to the invention. Figure 3 shows the same connector, with cable, as that of Figure 2.
Les figures 2 et 3 schématisent une exécution possible de l'invention.Figures 2 and 3 show schematically a possible embodiment of the invention.
La pièce conique flexible 5 exerce la fonction de pince servant à maintenir fermement le fil central 28 (p.ex. en acier) qui est situé au centre du câble 24 . Un serrage initial de la pièce conique 5 sur le fil central 28 est obtenu par la force latérale exercée par la pièce de serrage 8, elle-même également en forme de manchon conique qui entoure et sert la pièce conique 5. La pièce de serrage 8 exerce une force radiale contre la pièce conique 5 consécutivement au déplacement axial (qui s'est produit lors du montage du connecteur 31 autour du câble 24) de la douille de serrage 10 dans le manchon antirotation 11. Dans cette configuration, la pièce conique 5 est fermement retenue en position contre la butée 9.The flexible conical part 5 acts as a clamp serving to firmly hold the central wire 28 (eg steel) which is located in the center of the cable 24. An initial tightening of the conical piece 5 on the central wire 28 is obtained by the lateral force exerted by the clamping piece 8, itself also in the form of a conical sleeve which surrounds and serves the conical piece 5. The clamping piece 8 exerts a radial force against the conical part 5 following the axial displacement (which occurred during assembly of the connector 31 around the cable 24) of the clamping sleeve 10 in the non-rotation sleeve 11. In this configuration, the conical part 5 is firmly held in position against the stopper 9.
Lors de la traction sur le câble 24 (vers la droite du schéma) la pièce conique 5 est entraînée vers la droite et se resserre dans la pièce de serrage 8 ce qui résulte en une augmentation de la force de serrage sur le fil central 28.When pulling on the cable 24 (to the right of the diagram) the conical part 5 is driven to the right and tightens in the clamping part 8 which results in an increase in the clamping force on the central wire 28.
La pièce de serrage 8 et la butée 9 présentent des ouvertures latérales (non illustrées) qui permettent le passage libre du fil électrique 29 et de la fibre optique 27.The clamping piece 8 and the stop 9 have lateral openings (not shown) which allow the free passage of the electric wire 29 and the optical fiber 27.
L'élément 14 assure un contact électrique avec le blindage 26 du câble 24, un ensemble de joints optionnels 21, 22,23 servent à assurer l'étanchéité du tout. La figure 3 présente également des fibres de renforcement optionnelles 30 qui sont disposées vers l'extrémité libre du câble 24.The element 14 provides electrical contact with the shield 26 of the cable 24, a set of optional seals 21, 22, 23 serve to seal the whole. FIG. 3 also shows optional reinforcing fibers 30 which are arranged towards the free end of the cable 24.
L'ensemble du dispositif est retenu dans le connecteur 31 par un élément de fermeture 13. La pièce anti-rotation 11 permet d'éviter la torsion de la fibre optique 27 et du fil électrique 29 relativement au reste du connecteur 31 lors de sa fermeture, tout en restant orientable à souhait autour de l'axe du connecteur 31 (la contre-pièce de la pièce anti-rotation 11 n'est pas représentés pour des impératifs de clarté).The entire device is retained in the connector 31 by a closure element 13. The anti-rotation part 11 makes it possible to avoid twisting of the optical fiber 27 and of the electric wire 29 relative to the rest of the connector 31 when it is closed , while remaining orientable as desired around the axis of the connector 31 (the counter-part of the anti-rotation part 11 is not shown for reasons of clarity).
Exemple de montage :Installation example:
• L'élément de fermeture 13 est enfilé sur le câble 24 • L'embout 12 est mis en place sur le câble 24 • L'élément 14 et placé par-dessus le blindage 26 • L'ensemble des pièces 5, 8, 9, 10 et 11 est disposé par coulissement sur le fil central 28 et verrouillé par rotation • Après terminaison des fils électriques et/ou fibres optiques, le tout est glissé dans le boîtier du connecteur 31 , et maintenu en place après activation de l'élément de fermeture 13. • The closing element 13 is threaded on the cable 24 • The end piece 12 is put in place on the cable 24 • The element 14 and placed over the shield 26 • All of the parts 5, 8, 9 , 10 and 11 is placed by sliding on the central wire 28 and locked by rotation • After the electrical wires and / or optical fibers are terminated, the whole is slid into the connector housing 31, and held in place after activation of the element closing 13.
Avantages offerts par l'invention :Advantages offered by the invention:
• Le maintien du fil central 28 par la pièce conique 5 présente une caractéristique auto-serrante. Une traction sur le câble 24 augmente le serrage sur le fil central 28. Des forces de retenue importantes peuvent être obtenues sans recourir à l'usage d'adhésif, système peu pratique et risquant de contaminer le système. • Le dispositif peut assurer à la fois la retenue du fil central 28, d'un renforcement extérieur ainsi que le contact électrique du blindage 26. • Le système est simple d'utilisation, aucune manipulation de petits composants (vis etc.) n'est nécessaire. Le système peut même être configuré pour être serré à la main, sans outil particulier. • Le système peut être rendu étanche avec des joints 21 ,22,23. • Le système est équipé d'un dispositif anti-rotation, empêchant l'entraînement accidentel de l'attache du câble lors du vissage de la fermeture du connecteur, protégeant ainsi les fibres optiques, fils électriques et leurs terminaisons. • Le système peut être adapté à une multitude de constructions de câbles pour exploiter efficacement tous les éléments de renforcement (armatures) présents, sans devoir renoncer à l'étanchéité ou au blindage. • The maintenance of the central wire 28 by the conical part 5 has a self-tightening characteristic. A pull on the cable 24 increases the tightening on the central wire 28. Significant retaining forces can be obtained without resorting to the use of adhesive, an impractical system which risks contaminating the system. • The device can ensure both the retention of the central wire 28, of an external reinforcement as well as the electrical contact of the shield 26. • The system is simple to use, no manipulation of small components (screws etc.) is necessary. The system can even be configured to be hand tight, without any special tools. • The system can be made watertight with seals 21, 22,23. • The system is equipped with an anti-rotation device, preventing accidental entrainment of the cable tie when screwing the connector closure, thus protecting the optical fibers, electrical wires and their terminations. • The system can be adapted to a multitude of cable constructions to efficiently use all the reinforcing elements (reinforcements) present, without having to give up sealing or shielding.

Claims

Revendications claims
1. Connecteur (31) pour câble (24) comportant un élément sensible (27) tel que fibre optique et un fil central (28) formant une armature de renforcement, ledit connecteur (31) comprenant une pièce conique (5) en forme de manchon qui est adaptée pour entourer et serrer ledit fil central (28), caractérisé en ce que ladite pièce conique (5) est flexible et qu'elle est entourée d'une pièce de serrage (8) montée coulissante relativement à ladite pièce conique (5), de manière à ce qu'une traction exercée sur le câble (24) résulte en un déplacement relatif de ladite pièce conique (5) par rapport à ladite pièce de serrage (8) et que de la sorte, le serrage de ladite pièce conique (5) sur ledit fil central (28) augmente.1. connector (31) for cable (24) comprising a sensitive element (27) such as optical fiber and a central wire (28) forming a reinforcing reinforcement, said connector (31) comprising a conical part (5) in the form of sleeve which is adapted to surround and tighten said central wire (28), characterized in that said conical piece (5) is flexible and that it is surrounded by a clamping piece (8) slidably mounted relative to said conical piece ( 5), so that a traction exerted on the cable (24) results in a relative displacement of said conical piece (5) relative to said clamping piece (8) and that in this way, the tightening of said conical piece (5) on said central wire (28) increases.
2. Connecteur (31) selon la revendication précédente comprenant des moyens de retenue d'un renforcement extérieur faisant partie du câble (24)2. Connector (31) according to the preceding claim comprising means for retaining an external reinforcement forming part of the cable (24)
3. Connecteur (31) selon la revendication 1 ou 2 comprenant des moyens de retenue d'un contact électrique (14) avec un blindage électrique (26) disposé dans le câble (24).3. Connector (31) according to claim 1 or 2 comprising means for retaining an electrical contact (14) with an electrical shield (26) disposed in the cable (24).
4. Connecteur (31) selon l'une quelconque des revendications précédentes comprenant un ensemble de joints étanches (21 ,22,23).4. Connector (31) according to any one of the preceding claims comprising a set of seals (21, 22,23).
5. Connecteur (31) selon l'une quelconque des revendications précédentes comprenant un système anti-rotation (1 1).5. Connector (31) according to any one of the preceding claims comprising an anti-rotation system (1 1).
6. Connecteur (31) selon l'une quelconque des revendications précédentes adapté pour des câbles hybrides électrique-optique. 6. Connector (31) according to any one of the preceding claims suitable for hybrid electrical-optical cables.
PCT/IB2005/050821 2004-03-05 2005-03-05 Connector provided with a cable holding system WO2005086289A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3652004 2004-03-05
CHCH00365/04 2004-03-05

Publications (2)

Publication Number Publication Date
WO2005086289A2 true WO2005086289A2 (en) 2005-09-15
WO2005086289A3 WO2005086289A3 (en) 2005-12-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217028A (en) * 1978-07-24 1980-08-12 International Telephone And Telegraph Corporation Fiber optic electromechanical submarine cable termination
US4708427A (en) * 1984-05-25 1987-11-24 Kokusai Denshin Denwa Kabushiki Kaisha Optical submarine cable connection
US5166997A (en) * 1991-10-04 1992-11-24 Norland Products Incorporated Cable retention system
WO1995024667A1 (en) * 1994-03-07 1995-09-14 Nv Raychem S.A. Arrangement for gripping a strength member of an optical fibre cable
US5692090A (en) * 1991-06-12 1997-11-25 John Mezzalingua Assoc. Inc. Fiber optic cable end connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217028A (en) * 1978-07-24 1980-08-12 International Telephone And Telegraph Corporation Fiber optic electromechanical submarine cable termination
US4708427A (en) * 1984-05-25 1987-11-24 Kokusai Denshin Denwa Kabushiki Kaisha Optical submarine cable connection
US5692090A (en) * 1991-06-12 1997-11-25 John Mezzalingua Assoc. Inc. Fiber optic cable end connector
US5166997A (en) * 1991-10-04 1992-11-24 Norland Products Incorporated Cable retention system
WO1995024667A1 (en) * 1994-03-07 1995-09-14 Nv Raychem S.A. Arrangement for gripping a strength member of an optical fibre cable

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