EP0643399A1 - High frequency transmission cable - Google Patents
High frequency transmission cable Download PDFInfo
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- EP0643399A1 EP0643399A1 EP94402005A EP94402005A EP0643399A1 EP 0643399 A1 EP0643399 A1 EP 0643399A1 EP 94402005 A EP94402005 A EP 94402005A EP 94402005 A EP94402005 A EP 94402005A EP 0643399 A1 EP0643399 A1 EP 0643399A1
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- bundles
- cable according
- rod
- grooves
- assembly
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
Definitions
- the present invention relates to a high frequency transmission cable, of the type comprising individually insulated electrical conductors and assembled in several bundles often protected by shielding, and comprising an external sheath of overall protection.
- Such cables are used in particular in the computer field for high frequency data transmission, which can be of the order of 100 MHz. They are often flat in shape.
- the bundles of insulated conductors can be pairs, thirds or fourths. They can also be assembled into at least one set.
- the conductors isolated from the bundles of the same assembly are then advantageously assembled with different pitches for the constitution of the different bundles of this assembly.
- the shield then surrounds each set of beams.
- each assembly can be achieved by an insulating tape, for example made of polyester, the outer face of which is metallized.
- This ribbon is laid lengthwise or helically overlapping its edges, around the set of bundles.
- it makes it possible to reduce crosstalk between beams and reach a limit value of the order of -35 dB at 100 MHz, but not lower.
- Document Wo-A-86/05311 describes a flat computer cable in which the individually insulated conductors are assembled in pairs protected by an individual shielding screen, these insulated conductors all being positioned in the same plane.
- this cable two insulated conductors positioned side by side are assembled in a pair by a first insulating coating extruded around these two insulated conductors and thus embedded in it. Each pair is protected by a metallic shielding tape surrounding it.
- the protected pairs positioned side by side are assembled by a second insulating coating extruded around them, forming the overall protective outer sheath of the cable.
- the first coating is made of polyvinyl chloride, which does not adhere to the insulation of the conductors made of polyethylene or propylene.
- the stripping operations are themselves long.
- the choice of the first PVC coating on the PE or PP for insulating the conductors leads to lower dielectric performance than that which can be obtained in PE or PP or one of their copolymers, but causing it to adhere very strongly to insulated conductors then made very difficult to strip.
- the present invention aims to achieve a high frequency cable avoiding the drawbacks of the aforementioned known embodiment and making it possible to achieve crosstalk levels of the order of -40 to -50 dB at 100 MHz.
- a high frequency transmission cable comprising individually insulated electrical conductors and assembled in several bundles themselves assembled in at least one assembly, and an external sheath of overall protection, characterized in that it further comprises a grooved dielectric rod for assembling the bundles of each assembly, provided with longitudinal grooves, each of section adapted to that of one of the bundles of the assembly concerned and open by a slot on the periphery of the rod, in which the different beams of the assembly concerned are maintained individually by being separated from each other.
- the single figure is a sectional view of a high frequency transmission cable according to the invention.
- This cable is flat and has two quads 1.
- Each of the quads consists of a twist of four solid conductors 2, in particular made of copper, each coated with insulation 3 preferably in PE or PP.
- the dielectric rod 5 has for this purpose two grooves 6 in length receiving these two quarters.
- Each of these grooves is of circular section, adapted to that of the quads 1. It is opened by a narrow slot 7 on the periphery of the rod, initially or when the quarter is put in place.
- This slot is of almost zero or very small width, of a few tenths of a millimeter or more advantageously of the order of a few hundredths of a millimeter only, for its subsequent closing.
- This dielectric rod 5 is an extruded profile, preferably made of polyethylene or polypropylene. It is of elliptical section, for a desired flat shape of the cable, with its two grooves and their slots centered on the major axis of the ellipse. It plays the role of spacer maintaining and separating the two quarters. Its axial zone between the two grooves is of minimum thickness of at least 0.2mm and is preferably of the order of 0.3mm for insulated conductors with a diameter of approximately 1.3mm.
- the cable further comprises a shielding screen 8, in the form of a ribbon laid lengthwise and overlapping its edges around the dielectric rod and the two quarters thus assembled, and a screen continuity wire 9, interposed between the screen and the dielectric rod.
- This screen can be metallic or be dielectric and then metallized and in particular aluminized. It keeps the slots of the different grooves of the rod it surrounds closed.
- This set of two quarters thus protected is covered with an outer sheath 10 of overall protection.
- This sheath ensures a tight hold of the screen around the rod, the grooves of which are thus closed. It is extruded directly on the screen as soon as it is installed.
- It can be made of PE, PP or preferably PVC or other conventional sheathing material.
- this cable is quick and simple. It is carried out on a production line not illustrated, comprising means for running the rod, two sets of spacers inserted in the slots of the grooves of the rod for their opening by elastic deformation, means for guiding and inserting the two quarters in the open grooves of the rod, means for guiding the screen continuity wire against the rod, means for guiding and placing the shielding tape around the rod and a terminal extrusion die for the sheath protective exterior.
- the rod may have a section other than elliptical, while being without any sharp peripheral edge. It can also include more than two longitudinal grooves, each of section adapted to the section of the beam to be mounted therein, the bundles assembled in the rod being able to be fourths and / or thirds and / or pairs.
- the slots of the different grooves can be relatively wide. They are then closed by a dielectric gasket attached and retained in each of them or by an external dielectric tape surrounding the rod or by the shielding screen with a dielectric layer, preferably of reinforced thickness.
- This grooved rod cable for retaining and separating the bundles of each assembly can also be without a shielding screen.
- the cable can comprise several rods surrounded or not by their individual shielding screen and retained side by side in an outer sheath extruded around them.
Abstract
Description
La présente invention porte sur un câble de transmission haute fréquence, du type comportant des conducteurs électriques isolés individuellement et assemblés en plusieurs faisceaux souvent protégés par un blindage, et comportant une gaine extérieure de protection globale.The present invention relates to a high frequency transmission cable, of the type comprising individually insulated electrical conductors and assembled in several bundles often protected by shielding, and comprising an external sheath of overall protection.
De tels câbles sont utilisés en particulier dans le domaine informatique pour la transmission haute fréquence de données, pouvant être de l'ordre de 100 MHz. Ils sont souvent de forme extérieure plate. Les faisceaux de conducteurs isolés peuvent être des paires, des tierces ou des quartes. Ils peuvent être en outre assemblés en au moins un ensemble. Les conducteurs isolés des faisceaux d'un même ensemble sont alors avantageusement assemblés avec des pas différents pour la constitution des différents faisceaux de cet ensemble. Le blindage entoure alors chaque ensemble de faisceaux.Such cables are used in particular in the computer field for high frequency data transmission, which can be of the order of 100 MHz. They are often flat in shape. The bundles of insulated conductors can be pairs, thirds or fourths. They can also be assembled into at least one set. The conductors isolated from the bundles of the same assembly are then advantageously assembled with different pitches for the constitution of the different bundles of this assembly. The shield then surrounds each set of beams.
Dans un tel câble, le maintien et le blindage de chaque ensemble peut être réalisé par un ruban isolant, par exemple en polyester, dont la face extérieure est métallisée. Ce ruban est posé en long ou en hélice à recouvrement de ses bords, autour de l'ensemble de faisceaux. Combiné éventuellement avec un ensemble de faisceaux dont les pas d'assemblage sont différents, il permet de réduire la diaphonie entre faisceaux et d'atteindre une valeur limite de l'ordre de -35 dB à 100 MHz, mais pas inférieure.In such a cable, the holding and shielding of each assembly can be achieved by an insulating tape, for example made of polyester, the outer face of which is metallized. This ribbon is laid lengthwise or helically overlapping its edges, around the set of bundles. Optionally combined with a set of beams whose assembly steps are different, it makes it possible to reduce crosstalk between beams and reach a limit value of the order of -35 dB at 100 MHz, but not lower.
Dans un tel câble, la proximité du blindage et des conducteurs isolés qu'il entoure conduit par ailleurs à une capacité linéique et à un affaiblissement linéique du câble qui sont relativement élevés.In such a cable, the proximity of the shield and of the insulated conductors which it surrounds also leads to a linear capacity and a linear weakening of the cable which are relatively high.
Le document Wo-A-86/05311 décrit un câble plat informatique dans lequel les conducteurs isolés individuellement sont assemblés en paires protégées par un écran individuel de blindage, ces conducteurs isolés étant tous positionnés dans un même plan. Dans ce câble, deux conducteurs isolés et positionnés côte à côté sont assemblés en une paire par un premier enrobage isolant extrudé autour de ces deux conducteurs isolés et ainsi noyés dans celui-ci. Chaque paire est protégée par un ruban métallique de blindage l'entourant. Les paires protégées positionnées côte à côte sont assemblées par un deuxième enrobage isolant extrudé autour d'elles, formant la gaine extérieure de protection globale du câble.Document Wo-A-86/05311 describes a flat computer cable in which the individually insulated conductors are assembled in pairs protected by an individual shielding screen, these insulated conductors all being positioned in the same plane. In this cable, two insulated conductors positioned side by side are assembled in a pair by a first insulating coating extruded around these two insulated conductors and thus embedded in it. Each pair is protected by a metallic shielding tape surrounding it. The protected pairs positioned side by side are assembled by a second insulating coating extruded around them, forming the overall protective outer sheath of the cable.
Avantageusement deux rainures opposées sont réalisées sur le premier enrobage entre les deux conducteurs de la paire concernée et sur le deuxième enrobage entre les différentes paires ainsi assemblées, pour des facilités de dégainage nécessaire à l'accès aux conducteurs et la mise en place d'un connecteur terminal sur les différentes paires ou le câble. Pour ces mêmes raisons, le premier enrobage est réalisé en polychlorure de vinyle, non adhérent sur l'isolation des conducteurs réalisée en polyéthylène ou en propylène.Advantageously, two opposite grooves are made on the first coating between the two conductors of the pair concerned and on the second coating between the different pairs thus assembled, for stripping facilities necessary for access to the conductors and the installation of a terminal connector on the different pairs or the cable. For these same reasons, the first coating is made of polyvinyl chloride, which does not adhere to the insulation of the conductors made of polyethylene or propylene.
La réalisation d'un tel câble est relativement longue et est très délicate. Elle comporte un nombre important d'opérations d'extrusion. Elle exige, en particulier, à l'issue du premier enrobage d'assemblage des deux conducteurs de chaque paire et à l'issue du deuxième enrobage d'assemblage des paires, l'obtention des positions relatives strictes, qui sont définies initialement pour les caractéristiques électriques souhaitées du câble, entre les différents conducteurs.The realization of such a cable is relatively long and is very delicate. It includes a large number of extrusion operations. It requires, in particular, at the end of the first assembly coating of the two conductors of each pair and at the end of the second assembly coating of the pairs, obtaining strict relative positions, which are defined initially for the desired electrical characteristics of the cable, between the different conductors.
Les opérations de dégainage sont elles-mêmes longues. Le choix du premier enrobage en PVC sur le PE ou PP d'isolation des conducteurs conduit à des performances diélectriques moindres que celles pouvant être obtenues en le réalisant en PE ou PP ou l'un de leurs copolymères, mais le faisant adhérer très fortement aux conducteurs isolés alors rendus très difficiles à dénuder.The stripping operations are themselves long. The choice of the first PVC coating on the PE or PP for insulating the conductors leads to lower dielectric performance than that which can be obtained in PE or PP or one of their copolymers, but causing it to adhere very strongly to insulated conductors then made very difficult to strip.
En outre, la disposition dans un même plan des conducteurs limite les assemblages possibles des conducteurs, qui sont assemblés uniquement en paires, dans ce câble.In addition, the arrangement in the same plane of the conductors limits the possible assemblies of the conductors, which are assembled only in pairs, in this cable.
La présente invention a pour but de réaliser un câble haute fréquence évitant les inconvénients de la réalisation connue précitée et permettant d'atteindre des niveaux de diaphonie de l'ordre de -40 à -50 dB à 100 MHz.The present invention aims to achieve a high frequency cable avoiding the drawbacks of the aforementioned known embodiment and making it possible to achieve crosstalk levels of the order of -40 to -50 dB at 100 MHz.
Elle a pour objet un câble de transmission haute fréquence, comportant des conducteurs électriques isolés individuellement et assemblés en plusieurs faisceaux eux-mêmes assemblés en au moins un ensemble, et une gaine extérieure de protection globale, cararactérisé en ce qu'il comporte en outre un jonc diélectrique rainuré d'assemblage des faisceaux de chaque ensemble, pourvu de rainures longitudinales, chacune de section adaptée à celle de l'un des faisceaux de l'ensemble concerné et ouverte par une fente sur la périphérie du jonc, dans lesquelles les différents faisceaux de l'ensemble concerné sont maintenus individuellement en étant séparés les uns des autres.It relates to a high frequency transmission cable, comprising individually insulated electrical conductors and assembled in several bundles themselves assembled in at least one assembly, and an external sheath of overall protection, characterized in that it further comprises a grooved dielectric rod for assembling the bundles of each assembly, provided with longitudinal grooves, each of section adapted to that of one of the bundles of the assembly concerned and open by a slot on the periphery of the rod, in which the different beams of the assembly concerned are maintained individually by being separated from each other.
Ce câble peut présenter avantageusement en outre au moins l'une des caractéristiques additionnelles suivantes:
- ledit jonc est en l'un des matériaux choisi parmi le polyéthylène, le propylène et leurs copolymères,
- ledit jonc est de section droite elliptique et comporte au moins deux rainures, opposées l'une à l'autre et centrées sur le grand axe de la section elliptique, dont les fentes respectives sont terminales sur ledit grand axe,
- lesdites rainures sont de section circulaire, déformable par ouverture de la fente sur chacune d'elles, recevant les faisceaux, chacun constitué de conducteurs isolés et directement assemblés entre eux, et étant fermés sur les faisceaux,
- le câble comporte plusieurs joncs d'assemblage des faisceaux en autant d'ensembles, disposés et maintenus côte à côte dans ladite gaine extérieure.
- said rod is in one of the materials chosen from polyethylene, propylene and their copolymers,
- said rod is of elliptical cross section and comprises at least two grooves, opposite one another and centered on the major axis of the elliptical section, the respective slots of which are terminal on said major axis,
- said grooves are of circular section, deformable by opening the slot on each of them, receiving the beams, each consisting of insulated conductors and directly assembled together, and being closed on the beams,
- the cable comprises several rods for assembling the bundles into as many sets, arranged and held side by side in said outer sheath.
Les caractéristiques et avantages de la présente invention ressortiront de la description détaillée d'un exemple de réalisation illustré dans le dessins ci-annexé.The characteristics and advantages of the present invention will emerge from the detailed description of an exemplary embodiment illustrated in the attached drawings.
Dans ce dessin, la figure unique est une vue en coupe d'un câble de transmission haute fréquence, selon l'invention.In this drawing, the single figure is a sectional view of a high frequency transmission cable according to the invention.
Ce câble est plat et comporte deux quartes 1. Chacune des quartes est constituée d'une torsade de quatre conducteurs massifs 2, en particulier en cuivre, chacun revêtu d'une isolation 3 en PE ou PP de préférence.This cable is flat and has two quads 1. Each of the quads consists of a twist of four
Ces deux quartes sont logées dans un jonc diélectrique rainuré 5, assurant l'assemblage des deux quartes, leur maintien et leur séparation. Le jonc diélectrique 5 présente à cet effet deux rainures 6 en long recevant ces deux quartes.These two quarters are housed in a grooved
Chacune de ces rainures est de section circulaire, adaptée à celle des quartes 1. Elle est ouverte par une fente étroite 7 sur la périphérie du jonc, initialement ou à la mise en place de la quarte. Cette fente est de largeur quasi-nulle ou très faible, de quelques dixièmes de millimètre ou plus avantageusement de l'ordre de quelques centièmes de millimètre uniquement, pour sa fermeture ultérieure.Each of these grooves is of circular section, adapted to that of the quads 1. It is opened by a
Ce jonc diélectrique 5 est un profilé extrudé, réalisé de préférence en polyéthylène ou polypropylène. Il est de section elliptique, pour une forme plate souhaitée du câble, avec ses deux rainures et leurs fentes centrées sur le grand axe de l'ellipse. Il joue le rôle d'écarteur de maintien et de séparation des deux quartes. Sa zone axiale entre les deux rainures est d'épaisseur minimale d'au moins 0,2mm et est de préférence de l'ordre de 0,3mm pour des conducteurs isolés de diamètre de 1,3mm environ.This
Le câble comporte, en outre, un écran de blindage 8, sous forme de ruban posé en long et à recouvrement de ses bords autour du jonc diélectrique et des deux quartes ainsi assemblées, et un fil 9 de continuité d'écran, interposé entre l'écran et le jonc diélectrique. Cet écran peut être métallique ou être diélectrique et alors métallisé et en particulier aluminisé. Il assure le maintien fermé des fentes des différentes rainures du jonc qu'il entoure.The cable further comprises a shielding screen 8, in the form of a ribbon laid lengthwise and overlapping its edges around the dielectric rod and the two quarters thus assembled, and a
Le recouvrement l'un sur l'autre des bords de l'écran se fait loin des fentes d'ouverture des rainures. Dans cet exemple, il est réalisé sur l'une des grandes faces du jonc diélectrique. Il en est de même de la pose du fil de continuité d'écran qui est dans cet exemple sensiblement centré sur l'autre grande face du profilé.The overlap one on the other of the edges of the screen is made far from the slots for opening the grooves. In this example, it is produced on one of the large faces of the dielectric rod. It is the same for the installation of the screen continuity wire which is in this example substantially centered on the other large face of the profile.
Cet ensemble de deux quartes ainsi protégées est recouvert d'une gaine extérieure 10 de protection globale. Cette gaine assure un maintien serré de l'écran autour du jonc dont les rainures sont ainsi fermées. Elle est extrudée directement sur l'écran dès la pose de celui-ci. Elle peut être en PE, PP ou de préférence en PVC ou autre matériau classique de gainage.This set of two quarters thus protected is covered with an
La réalisation de ce câble est rapide et simple. Elle se fait sur une ligne de fabrication non illustrée, comportant des moyens de défilement du jonc, deux jeux d'écarteurs s'insérant dans les fentes des rainures du jonc pour leur ouverture par déformation élastique, des moyens de guidage et d'insertion des deux quartes dans les rainures ouvertes du jonc, des moyens de guidage du fil de continuité d'écran contre le jonc, des moyens de guidage et de mise en place du ruban de blindage autour du jonc et une filière terminale d'extrusion de la gaine extérieure de protection.The realization of this cable is quick and simple. It is carried out on a production line not illustrated, comprising means for running the rod, two sets of spacers inserted in the slots of the grooves of the rod for their opening by elastic deformation, means for guiding and inserting the two quarters in the open grooves of the rod, means for guiding the screen continuity wire against the rod, means for guiding and placing the shielding tape around the rod and a terminal extrusion die for the sheath protective exterior.
En variante non illustrée, le jonc peut avoir une section autre qu'elliptique, en étant sans arête vive péripéhrique. Il peut également comporter plus de deux rainures longitudinales, chacune de section adaptée à la section du faisceau à y monter, les faisceaux assemblés dans le jonc pouvant être des quartes et/ou des tierces et/ou des paires. Les fentes des différentes rainures peuvent être relativement larges. Elles sont alors fermées par un joint diélectrique rapporté et retenu dans chacune d'elles ou par un ruban diélectrique extérieur entourant le jonc ou par l'écran de blindage à couche diélectrique de préférence d'épaisseur renforcée.In a variant not illustrated, the rod may have a section other than elliptical, while being without any sharp peripheral edge. It can also include more than two longitudinal grooves, each of section adapted to the section of the beam to be mounted therein, the bundles assembled in the rod being able to be fourths and / or thirds and / or pairs. The slots of the different grooves can be relatively wide. They are then closed by a dielectric gasket attached and retained in each of them or by an external dielectric tape surrounding the rod or by the shielding screen with a dielectric layer, preferably of reinforced thickness.
Ce câble à jonc rainuré de maintien et de séparation des faisceaux de chaque ensemble peut également être sans écran de blindage.This grooved rod cable for retaining and separating the bundles of each assembly can also be without a shielding screen.
En variante également, le câble peut comporter plusieurs joncs entourés ou non de leur écran individuel de blindage et retenus côte à côte dans une gaine extérieure extrudée autour d'eux.Also in a variant, the cable can comprise several rods surrounded or not by their individual shielding screen and retained side by side in an outer sheath extruded around them.
Parmi les avantages que présente le câble selon l'invention, on cite notamment:
- le niveau de diaphonie obtenu, qui est de l'ordre de à -40 à -50 dB à 100 MHz, avec ou sans l'écran de blindage,
- la protection de la géométrie des faisceaux assemblés dans le jonc, en particulier lors de flexions du câble, et l'amélioration résultante de la régularité d'impédance,
- l'éloignement de l'écran par rapport aux conducteurs et son maintien fermé en long,
- la facilité d'accès aux conducteurs à travers les fentes du jonc rainuré, dès l'ouverture de la gaine extérieure de protection sur laquelle peuvent être également prévues des rainures facilitant son ouverture.
- the level of crosstalk obtained, which is of the order of at -40 to -50 dB at 100 MHz, with or without the shielding screen,
- the protection of the geometry of the bundles assembled in the rod, in particular during flexion of the cable, and the resulting improvement in the regularity of impedance,
- the distance of the screen from the conductors and keeping it closed lengthwise,
- the ease of access to the conductors through the slots of the grooved rod, from the opening of the external protective sheath on which grooves can also be provided to facilitate its opening.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR9310732 | 1993-09-09 | ||
FR9310732A FR2709860B1 (en) | 1993-09-09 | 1993-09-09 | High frequency transmission cable. |
Publications (2)
Publication Number | Publication Date |
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EP0643399A1 true EP0643399A1 (en) | 1995-03-15 |
EP0643399B1 EP0643399B1 (en) | 1998-02-25 |
Family
ID=9450697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP94402005A Expired - Lifetime EP0643399B1 (en) | 1993-09-09 | 1994-09-08 | High frequency transmission cable |
Country Status (4)
Country | Link |
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US (1) | US5565653A (en) |
EP (1) | EP0643399B1 (en) |
DE (1) | DE69408613T2 (en) |
FR (1) | FR2709860B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2748845A1 (en) * | 1996-05-14 | 1997-11-21 | Filotex Sa | ELECTRICAL CABLE FOR HIGH FREQUENCY TRANSMISSION |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE518306C2 (en) * | 1997-03-24 | 2002-09-24 | Abb Ab | Device for voltage-rigid inverter devices |
US6091025A (en) | 1997-07-29 | 2000-07-18 | Khamsin Technologies, Llc | Electrically optimized hybird "last mile" telecommunications cable system |
US6684030B1 (en) | 1997-07-29 | 2004-01-27 | Khamsin Technologies, Llc | Super-ring architecture and method to support high bandwidth digital “last mile” telecommunications systems for unlimited video addressability in hub/star local loop architectures |
FR2771546B1 (en) * | 1997-11-27 | 1999-12-31 | Alsthom Cge Alcatel | DATA TRANSMISSION CABLE |
US6239379B1 (en) | 1998-07-29 | 2001-05-29 | Khamsin Technologies Llc | Electrically optimized hybrid “last mile” telecommunications cable system |
DE19947825C1 (en) * | 1999-10-05 | 2001-03-15 | Daetwyler Ag Kabel & Systeme A | Data transmission cable manufacturing method has data transmission elements inserted in separate chambers provided by one-piece reception chamber profile before wrapping band around outside of latter |
US6281443B1 (en) * | 1999-10-13 | 2001-08-28 | Erik J. Idler | Electrical cable |
CA2313919C (en) * | 2000-07-17 | 2008-09-23 | C-Tech Energy Services Inc. | Downhole communication method and apparatus |
CN1220218C (en) * | 2002-07-18 | 2005-09-21 | 东莞蔻玛电子有限公司 | High frequency transmission yarn structure |
US7214884B2 (en) | 2003-10-31 | 2007-05-08 | Adc Incorporated | Cable with offset filler |
US7115815B2 (en) * | 2003-10-31 | 2006-10-03 | Adc Telecommunications, Inc. | Cable utilizing varying lay length mechanisms to minimize alien crosstalk |
US7259993B2 (en) * | 2005-06-03 | 2007-08-21 | Infineon Technologies Ag | Reference scheme for a non-volatile semiconductor memory device |
US7375284B2 (en) * | 2006-06-21 | 2008-05-20 | Adc Telecommunications, Inc. | Multi-pair cable with varying lay length |
JP2011096574A (en) * | 2009-10-30 | 2011-05-12 | Hitachi Cable Ltd | Cable for differential signal transmission |
CN102646467B (en) * | 2012-03-06 | 2015-05-20 | 立讯精密工业股份有限公司 | Signal transmission wire provided with conductive plastic material layer |
US20140262424A1 (en) * | 2013-03-14 | 2014-09-18 | Delphi Technologies, Inc. | Shielded twisted pair cable |
US11264148B2 (en) * | 2015-12-25 | 2022-03-01 | Hitachi Metals, Ltd. | Composite cable and composite harness |
JP6673071B2 (en) * | 2016-07-19 | 2020-03-25 | 株式会社オートネットワーク技術研究所 | Shield member, electric wire with shield member, intermediate product of shield member, and method of manufacturing shield member |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1665605A1 (en) * | 1965-12-23 | 1971-04-08 | Siemens Ag | Process for the production of a pair of signaling conductors for monitoring cables or lines against the ingress of moisture |
DE3405852A1 (en) * | 1984-02-15 | 1985-08-22 | Siemens AG, 1000 Berlin und 8000 München | MULTI-CORE FLEXIBLE ELECTRICAL CABLE |
US4674822A (en) * | 1984-11-21 | 1987-06-23 | Virginia Plastics Company | Multi-conductor shielded cable |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673315A (en) * | 1970-09-08 | 1972-06-27 | Belden Corp | Shielded cable |
US3894172A (en) * | 1973-11-06 | 1975-07-08 | Gen Cable Corp | Multicable telephone cable in a common sheath |
GB1448793A (en) * | 1974-05-31 | 1976-09-08 | Post Office | Optical cables |
CA1197297A (en) * | 1983-06-08 | 1985-11-26 | Bicc General Industrial Cables Limited | Electric cable |
JPS6179448A (en) * | 1984-09-25 | 1986-04-23 | 株式会社東芝 | X-ray ct scanner |
US4755629A (en) * | 1985-09-27 | 1988-07-05 | At&T Technologies | Local area network cable |
US4777325A (en) * | 1987-06-09 | 1988-10-11 | Amp Incorporated | Low profile cables for twisted pairs |
US5132488A (en) * | 1991-02-21 | 1992-07-21 | Northern Telecom Limited | Electrical telecommunications cable |
US5399813A (en) * | 1993-06-24 | 1995-03-21 | The Whitaker Corporation | Category 5 telecommunication cable |
-
1993
- 1993-09-09 FR FR9310732A patent/FR2709860B1/en not_active Expired - Fee Related
-
1994
- 1994-09-08 DE DE69408613T patent/DE69408613T2/en not_active Expired - Fee Related
- 1994-09-08 US US08/302,252 patent/US5565653A/en not_active Expired - Fee Related
- 1994-09-08 EP EP94402005A patent/EP0643399B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1665605A1 (en) * | 1965-12-23 | 1971-04-08 | Siemens Ag | Process for the production of a pair of signaling conductors for monitoring cables or lines against the ingress of moisture |
DE3405852A1 (en) * | 1984-02-15 | 1985-08-22 | Siemens AG, 1000 Berlin und 8000 München | MULTI-CORE FLEXIBLE ELECTRICAL CABLE |
US4674822A (en) * | 1984-11-21 | 1987-06-23 | Virginia Plastics Company | Multi-conductor shielded cable |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2748845A1 (en) * | 1996-05-14 | 1997-11-21 | Filotex Sa | ELECTRICAL CABLE FOR HIGH FREQUENCY TRANSMISSION |
Also Published As
Publication number | Publication date |
---|---|
DE69408613T2 (en) | 1998-06-18 |
EP0643399B1 (en) | 1998-02-25 |
FR2709860B1 (en) | 1995-10-20 |
DE69408613D1 (en) | 1998-04-02 |
US5565653A (en) | 1996-10-15 |
FR2709860A1 (en) | 1995-03-17 |
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