EP2280402B9 - Multimedia communication and transmission cable - Google Patents

Multimedia communication and transmission cable Download PDF

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Publication number
EP2280402B9
EP2280402B9 EP20100170861 EP10170861A EP2280402B9 EP 2280402 B9 EP2280402 B9 EP 2280402B9 EP 20100170861 EP20100170861 EP 20100170861 EP 10170861 A EP10170861 A EP 10170861A EP 2280402 B9 EP2280402 B9 EP 2280402B9
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Prior art keywords
conductive elements
cable
transmission line
signal transmission
pair
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German (de)
French (fr)
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EP2280402A1 (en
EP2280402B1 (en
Inventor
Thierry Estienne
Arnaud Perrier
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Acome SCOP
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Acome SCOP
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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 invention relates to a multimedia communication cable, in particular for cabling residential communication networks.
  • the multimedia communication cables allow, from a single connection socket (including an RJ-45 type socket), to connect several terminal equipments, such as a television set, a telephone set and a computer or any equipment based on an Ethernet data exchange protocol. These cables are indeed adapted to simultaneously transmit radio television signals, satellite television signals, telephone signals, as well as computer data signals (from a communication network such as the Internet for example).
  • these cables are provided for transmitting analog or digital telephone signals, computer data signals with a rate of 100 megabits per second, and UHF (Ultra High Frequency), VHF (Very High Frequency) television and satellite television signals. of a non-demodulated nature up to a frequency of 2200 MHz.
  • UHF Ultra High Frequency
  • VHF Very High Frequency
  • satellite television signals of a non-demodulated nature up to a frequency of 2200 MHz.
  • These cables have low attenuation values, distortion-free attenuation curves (no more than 3dB variation in a frequency band corresponding to that of a television channel), and reflection loss levels (called "return loss”) weak and without peaks.
  • the combination of the cable and a box for amplification of the television signals must make it possible to obtain a system in accordance with the UTE C 90-125 standard established by the Technical Union of Electricity and Communication.
  • the figure 1 represents an example of a multimedia communication cable 1.
  • the cable 1 comprises a sheath protection 21, and a plurality of transmission lines 22, 23 and 24 extending inside the protective sheath.
  • the transmission lines include a computer data signal transmission line 22, a telephone signal transmission line 23 and a television signal transmission line 24.
  • Each transmission line 22, 23 and 24 is formed from one or several pair (s) of conductive elements 226, 236 and 246, each pair of conductive elements consisting of two conductive elements twisted together, that is to say helically wound around each other. This twisted pair arrangement is intended to precisely maintain the distance between the conductive elements of the same pair in order to meet required transmission characteristics such as crosstalk, impedance and return loss.
  • Each pair is surrounded by an individual shielding envelope, which allows to maintain the performance in terms of cable crosstalk up to frequencies of 900 MHz or up to 2200 MHz for the satellite TV pair.
  • the pairs of conductive elements 226, 236 and 246 are further assembled together in double or single twist on standard weavers.
  • the torsion necessary for assembling the pairs causes the appearance of reflection loss (return loss) at certain frequencies and weakening phenomena of the transmitted signal.
  • the frequency with which these losses appear is inversely proportional to the pitch of assembly.
  • the pitch of the pairs is generally less than 50 millimeters in order to shift the attenuation peaks at frequencies above 2400 MHz in order not to disturb the transmission of the television signal.
  • the cable 1 also comprises a screening casing 25 extending between the protective sheath 21 and the transmission lines 22, 23 and 24, and a copper continuity wire 247 intended to be connected to the earth.
  • the screening casing 25 is formed of an aluminum foil or a metal braid enveloping the transmission lines
  • a disadvantage of this type of cable is that the low assembly pitch of the pairs (less than 50 millimeters) limits the linear speed of production of the cable.
  • Another disadvantage is that because of its complex structure, the cable has a relatively high production cost and size. This disadvantage leads to restrict the use of this type of cable and limits the number of connection sockets installed in homes.
  • this cable can sometimes be difficult to integrate in the context of a home restoration.
  • An object of the invention is to provide a multimedia communication cable cheaper to manufacture and less cumbersome.
  • the cable Since the lines of transmission of computer data signals and telephone signals are devoid of shielding, the cable is more economical to manufacture than the cables of the prior art and has a smaller footprint.
  • this cable can meet the needs of the residential sector because it allows the transmission of telephone signals and computer data signals at frequencies up to 100 MHz.
  • the cable may further have the following features.
  • the television signal transmission line is not assembled with the other transmission lines.
  • This feature makes it possible to overcome manufacturing constraints related to the assembly pitch of the television signal transmission line.
  • the computer data signal transmission line and the telephone signal transmission line comprise three pairs of conductive elements, each pair of conductive elements consisting of two conductive elements twisted together, the three pairs of conductive elements being assembled together.
  • the computer data signal transmission line comprises two pairs of conductive elements, each pair of conductive elements consisting of two conductive elements twisted together, the two pairs of conductive elements being assembled together.
  • the computer data signal transmission line comprises a fourth of conductive elements, the fourth of conductive elements being constituted by four conductive elements twisted together.
  • the transmission lines can extend parallel to each other.
  • the network data signal transmission line and the telephone signal transmission line may be arranged on either side of the television signal transmission line.
  • This arrangement of the transmission lines makes it possible to reduce the mechanical stresses exerted on the television data transmission line.
  • the sheath surrounding the transmission lines has an oblong section.
  • the sheath surrounding the transmission lines comprises a plurality of compartments, each compartment receiving at least one transmission line.
  • compartments can be separable longitudinally from each other.
  • the figure 2 represents a multimedia communication cable 2, according to a first embodiment of the invention.
  • the cable 2 comprises a sheath 21 and a plurality of transmission lines 22, 23 and 24 extending inside the sheath.
  • the sheath 21 consists of a PVC (polyvinyl chloride) or LSOH material (material with a low rate of smoke evolution and virtually no halogen gas evolution), such as polyethylene or propylene loaded with for example, the tube having a section of generally oblong shape.
  • the cable 2 may be devoid of screening envelope between the sheath and the transmission lines.
  • the sheath 21 protects the transmission lines that it contains and maintains the entire mechanical structure of the cable.
  • the computer data signal transmission line 22 comprises two pairs 221 and 222 of conductive elements and is devoid of shielding envelope. Each pair 221 and 222 consists of two conductive elements 223 twisted together. Each conductive element 223 comprises a conductive core 224 of copper diameter around 0.5 mm and an insulating envelope 225 made of a material having low dielectric losses, such as polyethylene, surrounding the conductive core 224.
  • the line 23 for transmitting telephone signals comprises a single pair 231 of conducting elements and is also devoid of shielding envelope.
  • the pair 231 consists of two conductive elements 233 twisted together.
  • Each conductive element 233 comprises a conductive core 234 of copper diameter around 0.5 mm and an insulating jacket 235 made of polyethylene, surrounding the conductive core 234.
  • the television signal transmission line 24 comprises a pair 241 of conducting elements consisting of two conductive elements 243 twisted together, a shielding envelope 246 surrounding the pair of conductive elements and a continuity wire 247.
  • Each conductive element 243 comprises a conductive core 244 and an insulating jacket 245 surrounding the conductive core 244.
  • the conductive core 244 is formed of copper and has a diameter of the order of 0.580 millimeters. This makes it possible to transmit satellite television signals having a frequency of 2200 MHz over a transmission distance of the order of 40 meters. For lower frequencies, the transmission distance may be greater.
  • a conductive core having a diameter greater than 0.580 millimeters in order to reduce the weakening of the cable and thus to obtain a higher transmission distance.
  • the diameter of the core should, however, preferably remain compatible with standard RJ 45 jacks. However, the use of specific connectors may not limit the diameter of the core.
  • the insulating jacket 245 is formed of a material having low dielectric losses, such as polyethylene.
  • the insulating jacket 245 may be formed of a polyethylene material having a triple layer structure (skin-foam-skin). This structure makes it possible to obtain a expansion rate greater than 60%, which contributes to improving the dielectric performance of the insulation and thus to reduce the diameter of the conductive element 243 for an impedance of 100 ohms.
  • the shielding casing 246 is formed of an aluminum ribbon wound helically around the pair 241.
  • the shielding casing 246 serves to isolate the pair 241 of conductive elements carrying the television signals, in order to protect the television signal transmission line interference.
  • the continuity wire 247 is a copper wire extending along the shielding shell and is disposed in contact therewith.
  • the continuity wire 247 is intended to be connected to the ground.
  • Each pair 221, 222, 231 and 241 has an impedance of about 100 ohms.
  • the pairs 221, 222 and 231 are assembled together by torsion with an assembly pitch substantially equal to 120 millimeters, while the pair 241 is not assembled with the other pairs.
  • the beam formed by the assembled pairs 221, 222 and 231 extends next to the television signal transmission line 24, parallel thereto.
  • This arrangement of the transmission lines provides a compact structure and is adapted to be housed in a protective sheath 21 having a slightly flattened section. With a small footprint and a flattened shape, the cable can be easily integrated into a home.
  • the figure 3 represents a multimedia communication cable 3, according to a second embodiment of the invention.
  • the cable 3 is identical to the cable 2 described above, except that the pair 231 of the line 23 for transmitting telephone signals is not assembled with the pairs 221 and 222 of the line 22 for transmitting computer data signals.
  • the line 22 for transmitting network data signals and the line 23 for transmitting telephone signals are arranged on either side of the line 24 for transmitting television signals.
  • This arrangement makes it possible to position the television signal transmission line 24 substantially at the location of the neutral fiber of the cable. This makes it possible to minimize the mechanical stresses generated in the elements 243 when the cable is subjected to twisting during its installation.
  • the figure 4 represents a multimedia communication cable 4, according to a third embodiment of the invention.
  • the cable 4 is identical to the cable 3 described above, except that the network data transmission line 22 comprises a quadrant 226 of conductive elements, the quadrant 226 of conductive elements consisting of four conductive elements 223 twisted together in a single surgery.
  • the quarter assembly 226 has a smaller footprint compared to the assembly in the form of two pairs 221, 222 twisted.
  • this arrangement reduces the number of operations required to manufacture the cable.
  • the figure 5 represents a multimedia communication cable 5 according to a fourth embodiment of the invention.
  • the cable 5 is identical to the cable 4 described above, except that the protective sheath 21 comprises three compartments 212, 213 and 214, each compartment respectively receiving a transmission line 22, 23 and 24 corresponding.
  • Each compartment 212, 213 and 214 consists of a tube made of PVC (polyvinyl chloride) or an LSOH material (material with a low rate of smoke release and virtually no absence of halogenated gases), such as polyethylene or charged propylene for example, the tube having a section of generally circular shape.
  • PVC polyvinyl chloride
  • LSOH material material with a low rate of smoke release and virtually no absence of halogenated gases
  • the compartments 212, 213 and 214 are arranged next to each other so that the protective sheath 21 has a section of generally flattened shape.
  • the compartment 214 receiving the television signal transmission line 24 is located between the compartments 212 and 213, at the location of the neutral fiber of the cable. This makes it possible to minimize the mechanical stresses generated in the elements 243 when the cable is subjected to twisting during its installation.
  • the protective sheath 21 further comprises portions 215 and 216 of material, respectively connecting the compartments 212 and 214, and 214 and 213 between them. These portions 215 and 216 have a small thickness (of the order of a few tenths of a millimeter) so as to constitute zones of least resistance that can be easily torn manually to separate the compartments from each other.
  • This arrangement has the same advantages as the arrangement of the figure 4 . It also makes it possible to separate the three transmission lines while maintaining a protection of each of the transmission lines by the sheath to their point of connection.
  • the cables proposed require a number of manufacturing operations reduced compared to the multimedia communication cable of the figure 1 . In addition, these cables also require fewer components.
  • the television signal transmission line is not assembled with the other transmission lines, it is possible to assemble the other transmission lines with an assembly pitch greater than 50 millimeters. This makes it possible to substantially increase the speed of manufacture of the cables.
  • the manufacture of the proposed cables is more economical than the multimedia communication cable of the figure 1 .
  • the proposed cables have a flattened shape and reduced dimensions, which makes them more discreet and easier to install, especially in pre-existing homes.
  • the manufacturing of the proposed cables has a reduced impact on the environment, while at the same time exhibiting sufficient cable performance in terms of throughput for transmitting simultaneously terrestrial television signals, satellite television signals, telephone signals, as well as computer data signals (carried by a communication network such as the Internet for example).

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention concerne un câble de communication multimédia, destiné en particulier an câblage de réseaux de communication résidentiels.The invention relates to a multimedia communication cable, in particular for cabling residential communication networks.

ETAT DE LA TECHNIQUESTATE OF THE ART

Les câbles de communication multimédia permettent, à partir d'une prise de connexion unique (notamment une prise de type RJ-45), de raccorder plusieurs équipements terminaux, tels qu'un poste de télévision, un poste téléphonique et un ordinateur ou tout équipement de communication fonctionnant sur la base d'un protocole d'échange de données Ethernet. Ces câbles sont en effet adaptés pour transmettre simultanément des signaux de télévision hertzienne, des signaux de télévision satellite, des signaux téléphoniques, ainsi que des signaux de données informatiques (issues d'un réseau de communication tel qu'Internet par exemple).The multimedia communication cables allow, from a single connection socket (including an RJ-45 type socket), to connect several terminal equipments, such as a television set, a telephone set and a computer or any equipment based on an Ethernet data exchange protocol. These cables are indeed adapted to simultaneously transmit radio television signals, satellite television signals, telephone signals, as well as computer data signals (from a communication network such as the Internet for example).

Plus précisément, ces câbles sont prévus pour transmettre des signaux téléphoniques analogiques ou numériques, des signaux de données informatique avec un débit de 100 Mégabits par seconde, et des signaux de télévision UHF (Ultra Haute Fréquence), VHF (Très Haute Fréquence) et satellite de nature non-démodulée jusqu'à une fréquence de 2200 MHz. Ces câbles présentent des valeurs d'affaiblissement faibles, des courbes d'affaiblissement sans distorsion (pas de variation de plus de 3dB dans une bande de fréquences correspondant à celle d'un canal de télévision) ainsi que des niveaux d'affaiblissement de réflexion (appelés « return loss ») faibles et sans pics. De plus, la combinaison du câble et d'un boitier d'amplification des signaux de télévision doit permettre d'obtenir un système conforme à la norme UTE C 90-125 établie par l'Union Technique de l'Electricité et de la Communication.Specifically, these cables are provided for transmitting analog or digital telephone signals, computer data signals with a rate of 100 megabits per second, and UHF (Ultra High Frequency), VHF (Very High Frequency) television and satellite television signals. of a non-demodulated nature up to a frequency of 2200 MHz. These cables have low attenuation values, distortion-free attenuation curves (no more than 3dB variation in a frequency band corresponding to that of a television channel), and reflection loss levels ( called "return loss") weak and without peaks. In addition, the combination of the cable and a box for amplification of the television signals must make it possible to obtain a system in accordance with the UTE C 90-125 standard established by the Technical Union of Electricity and Communication.

La figure 1 représente un exemple de câble 1 de communication multimédia. De manière générale, le câble 1 comprend une gaine de protection 21, et une pluralité de lignes de transmission 22, 23 et 24 s'étendant à l'intérieur de la gaine de protection.The figure 1 represents an example of a multimedia communication cable 1. In general, the cable 1 comprises a sheath protection 21, and a plurality of transmission lines 22, 23 and 24 extending inside the protective sheath.

Les lignes de transmission incluent une ligne de transmission de signaux de données informatiques 22, une ligne de transmission de signaux téléphoniques 23 et une ligne de transmission de signaux de télévision 24. Chaque ligne de transmission 22, 23 et 24 est formée d'une ou plusieurs paire(s) d'éléments conducteurs 226, 236 et 246, chaque paire d'éléments conducteurs étant constituée de deux éléments conducteurs torsadés ensemble, c'est-à-dire enroulés en hélice l'un autour de l'autre. Cet agencement en paires torsadées a pour but de maintenir précisément la distance entre les éléments conducteurs d'une même paire afin de respecter des caractéristiques requises de transmission comme la diaphonie, l'impédance et l'affaiblissement de réflexion (return loss).The transmission lines include a computer data signal transmission line 22, a telephone signal transmission line 23 and a television signal transmission line 24. Each transmission line 22, 23 and 24 is formed from one or several pair (s) of conductive elements 226, 236 and 246, each pair of conductive elements consisting of two conductive elements twisted together, that is to say helically wound around each other. This twisted pair arrangement is intended to precisely maintain the distance between the conductive elements of the same pair in order to meet required transmission characteristics such as crosstalk, impedance and return loss.

Chaque paire est entourée d'une enveloppe de blindage individuelle, ce qui permet de maintenir les performances en terme de diaphonie du câble jusqu'à des fréquences de 900 MHz voir jusqu'à 2200 Mhz pour la paire TV satellite.Each pair is surrounded by an individual shielding envelope, which allows to maintain the performance in terms of cable crosstalk up to frequencies of 900 MHz or up to 2200 MHz for the satellite TV pair.

Les paires d'éléments conducteurs 226, 236 et 246 sont en outre assemblées entre elles en double ou simple torsion sur des câbleuses standard. La torsion nécessaire à l'assemblage des paires provoque l'apparition de pics d'affaiblissement de réflexion (return loss) à certaines fréquences et des phénomènes d'affaiblissement du signal transmis. La fréquence à laquelle apparaissent ces affaiblissements est inversement proportionnelle au pas d'assemblage.The pairs of conductive elements 226, 236 and 246 are further assembled together in double or single twist on standard weavers. The torsion necessary for assembling the pairs causes the appearance of reflection loss (return loss) at certain frequencies and weakening phenomena of the transmitted signal. The frequency with which these losses appear is inversely proportional to the pitch of assembly.

C'est pourquoi, le pas d'assemblage des paires est généralement inférieur à 50 millimètres, afin de décaler les pics d'affaiblissement à des fréquences supérieures à 2400 MHz pour ne pas perturber la transmission du signal de télévision.For this reason, the pitch of the pairs is generally less than 50 millimeters in order to shift the attenuation peaks at frequencies above 2400 MHz in order not to disturb the transmission of the television signal.

Le câble 1 comprend également une enveloppe d'écrantage 25 s'étendant entre la gaine de protection 21 et les lignes de transmission 22, 23 et 24, et un fil de continuité 247 en cuivre destiné à être relié à la terre. L'enveloppe d'écrantage 25 est formée d'une feuille d'aluminium ou d'une tresse métallique enveloppant les lignes de transmissionThe cable 1 also comprises a screening casing 25 extending between the protective sheath 21 and the transmission lines 22, 23 and 24, and a copper continuity wire 247 intended to be connected to the earth. The screening casing 25 is formed of an aluminum foil or a metal braid enveloping the transmission lines

Un inconvénient de ce type de câble est que le faible pas d'assemblage des paires (inférieur à 50 millimètres) limite la vitesse linéaire de production du câble.A disadvantage of this type of cable is that the low assembly pitch of the pairs (less than 50 millimeters) limits the linear speed of production of the cable.

Un autre inconvénient est que du fait de sa structure complexe, le câble présente un coût de production et un encombrement relativement importants. Cet inconvénient conduit à restreindre l'utilisation de ce type de câble et limite le nombre de prises de connexion installées dans les habitations.Another disadvantage is that because of its complex structure, the cable has a relatively high production cost and size. This disadvantage leads to restrict the use of this type of cable and limits the number of connection sockets installed in homes.

Enfin, du fait de son rayon de courbe et de son diamètre importants, ce câble peut être parfois difficile à intégrer dans le cadre d'une restauration d'habitation.Finally, because of its radius of curve and its large diameter, this cable can sometimes be difficult to integrate in the context of a home restoration.

Le document ACOHOME MTV ET MTVS du 11 février 2008 décrit un câble de communication et de transmission selon le préambule de la revendication 1.The document ACOHOME MTV AND MTVS February 11, 2008 discloses a communication and transmission cable according to the preamble of claim 1.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

Un but de l'invention est de proposer un câble de communication multimédia plus économique à fabriquer et moins encombrant.An object of the invention is to provide a multimedia communication cable cheaper to manufacture and less cumbersome.

Ce problème est résolu dans le cadre de la présente invention grâce à un câble de communication et de transmission comprenant une gaine et une pluralité de lignes de transmission s'étendant à l'intérieur de la gaine, dans lequel les lignes de transmission incluent :

  • une ligne de transmission de signaux de données informatiques comprenant des éléments conducteurs torsadés,
  • une ligne de transmission de signaux téléphoniques comprenant des éléments conducteurs torsadés , et
  • une ligne de transmission de signaux de télévision comprenant une paire d'éléments conducteurs constituée de deux éléments conducteurs torsadés ensemble, et une enveloppe de blindage entourant la paire d'éléments conducteurs, caractérisé en ce que ladite ligne de transmission de signaux de données informatiques et ladite ligne de transmission de signaux téléphoniques sont dépourvues d'enveloppe de blindage.
This problem is solved within the scope of the present invention by a communication and transmission cable comprising a sheath and a plurality of transmission lines extending within the sheath, wherein the transmission lines include:
  • a computer data signal transmission line comprising twisted conductive elements,
  • a telephone signal transmission line comprising twisted conductive elements, and
  • a television signal transmission line comprising a pair of conductive elements consisting of two conductive elements twisted together, and a shielding envelope surrounding the pair of conductive elements, characterized in that said computer data signal transmission line and said telephone signal transmission line are devoid of shielding envelope.

Du fait que les lignes de transmission de signaux de données informatiques et de signaux téléphoniques sont dépourvues d'enveloppe de blindage, le câble est plus économique à fabriquer que les câbles de l'art antérieur et présente un encombrement moindre.Since the lines of transmission of computer data signals and telephone signals are devoid of shielding, the cable is more economical to manufacture than the cables of the prior art and has a smaller footprint.

Ce câble permet néanmoins de répondre aux besoins dans le secteur résidentiel, car il permet de transmettre des signaux téléphoniques et des signaux de données informatiques à des fréquences jusqu'à 100 MHz.However, this cable can meet the needs of the residential sector because it allows the transmission of telephone signals and computer data signals at frequencies up to 100 MHz.

Le câble peut en outre présenter les caractéristiques suivantes.The cable may further have the following features.

Selon un aspect avantageux, la ligne de transmission de signaux de télévision n'est pas assemblée avec les autres lignes de transmission.In one advantageous aspect, the television signal transmission line is not assembled with the other transmission lines.

Cette caractéristique permet de s'affranchir des contraintes de fabrication liées au pas d'assemblage de la ligne de transmission de signaux de télévision.This feature makes it possible to overcome manufacturing constraints related to the assembly pitch of the television signal transmission line.

De plus, en évitant d'avoir recours à une torsion de la ligne de transmission de signaux de télévision, les performances de cette ligne sont préservées.In addition, by avoiding resort to a twist of the television signal transmission line, the performance of this line are preserved.

Selon un autre aspect, la ligne de transmission de signaux de données informatiques et la ligne de transmission de signaux téléphoniques comprennent trois paires d'éléments conducteurs, chaque paire d'éléments conducteurs étant constituée de deux éléments conducteurs torsadés ensemble, les trois paires d'éléments conducteurs étant assemblées entre elles.In another aspect, the computer data signal transmission line and the telephone signal transmission line comprise three pairs of conductive elements, each pair of conductive elements consisting of two conductive elements twisted together, the three pairs of conductive elements being assembled together.

Selon un mode de réalisation, la ligne de transmission de signaux de données informatiques comprend deux paires d'éléments conducteurs, chaque paire d'éléments conducteurs étant constituée de deux éléments conducteurs torsadés ensemble, les deux paires d'éléments conducteurs étant assemblées entre elles.According to one embodiment, the computer data signal transmission line comprises two pairs of conductive elements, each pair of conductive elements consisting of two conductive elements twisted together, the two pairs of conductive elements being assembled together.

Selon un autre mode de réalisation, la ligne de transmission de signaux de données informatiques comprend une quarte d'éléments conducteurs, la quarte d'éléments conducteurs étant constituée de quatre éléments conducteurs torsadés ensemble.According to another embodiment, the computer data signal transmission line comprises a fourth of conductive elements, the fourth of conductive elements being constituted by four conductive elements twisted together.

En outre, les lignes de transmission peuvent s'étendre parallèlement les unes aux autres.In addition, the transmission lines can extend parallel to each other.

En particulier, la ligne de transmission de signaux de données réseau et la ligne de transmission de signaux téléphoniques peuvent être agencées de part et d'autre de la ligne de transmission de signaux de télévision.In particular, the network data signal transmission line and the telephone signal transmission line may be arranged on either side of the television signal transmission line.

Cette disposition des lignes de transmission permet de réduire les contraintes mécaniques s'exerçant sur la ligne de transmission de données de télévision.This arrangement of the transmission lines makes it possible to reduce the mechanical stresses exerted on the television data transmission line.

Il est en outre possible de fabriquer un câble présentant une section de forme aplatie et des dimensions réduites, ce qui le rend plus discret et plus facile à installer notamment dans des habitations préexistantes.It is also possible to manufacture a cable having a flattened section and reduced dimensions, which makes it more discreet and easier to install, especially in pre-existing homes.

Selon un mode de réalisation, la gaine entourant les lignes de transmission présente une section de forme oblongue.According to one embodiment, the sheath surrounding the transmission lines has an oblong section.

Selon un autre mode de réalisation, la gaine entourant les lignes de transmission comprend plusieurs compartiments, chaque compartiment recevant au moins une ligne de transmission.According to another embodiment, the sheath surrounding the transmission lines comprises a plurality of compartments, each compartment receiving at least one transmission line.

En particulier, les compartiments peuvent être séparables longitudinalement les uns des autres.In particular, the compartments can be separable longitudinally from each other.

PRESENTATION DES DESSINSPRESENTATION OF THE DRAWINGS

D'autres caractéristiques et avantages ressortiront encore de la description qui suit, laquelle est purement illustrative et non limitative, et doit être lue en regard des figures annexées, parmi lesquelles :

  • la figure 1, déjà commentée, représente de manière schématique en coupe transversale, une structure de câble de communication multimédia, conforme à l'état de la technique,
  • la figure 2 représente de manière schématique en coupe transversale, une structure de câble de communication multimédia, conforme à un premier mode de réalisation de l'invention,
  • la figure 3 représente de manière schématique en coupe transversale, une structure de câble de communication multimédia, conforme à un deuxième mode de réalisation de l'invention,
  • la figure 4 représente de manière schématique en coupe transversale, une structure de câble de communication multimédia, conforme à un troisième mode de réalisation de l'invention,
  • la figure 5 représente de manière schématique en coupe transversale, une structure de câble de communication multimédia, conforme à un quatrième mode de réalisation de l'invention.
Other features and advantages will emerge from the description which follows, which is purely illustrative and nonlimiting, and should be read in conjunction with the appended figures, among which:
  • the figure 1 , already commented, shows schematically in cross-section, a multimedia communication cable structure, according to the state of the art,
  • the figure 2 shows schematically in cross section, a multimedia communication cable structure, according to a first embodiment of the invention,
  • the figure 3 schematically shows in cross-section, a multimedia communication cable structure, according to a second embodiment of the invention,
  • the figure 4 schematically shows in cross-section, a multimedia communication cable structure, according to a third embodiment of the invention,
  • the figure 5 schematically shows in cross-section, a multimedia communication cable structure, according to a fourth embodiment of the invention.

DESCRIPTION DETAILLEE D'UN MODE DE REALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT

La figure 2 représente un câble 2 de communication multimédia, conforme à un premier mode de réalisation de l'invention.The figure 2 represents a multimedia communication cable 2, according to a first embodiment of the invention.

Le câble 2 comprend une gaine 21 et une pluralité de lignes de transmission 22, 23 et 24 s'étendant à l'intérieur de la gaine.The cable 2 comprises a sheath 21 and a plurality of transmission lines 22, 23 and 24 extending inside the sheath.

La gaine 21 est constituée d'un tube en PVC (polychlorure de vinyle) ou en un matériau LSOH (matériau à faible taux de dégagement de fumées et quasi-absence de dégagement de gaz halogénés), tel que du polyéthylène ou du propylène chargé par exemple, le tube présentant une section de forme générale oblongue. Le câble 2 peut être dépourvu d'enveloppe d'écrantage entre la gaine et les lignes de transmission.The sheath 21 consists of a PVC (polyvinyl chloride) or LSOH material (material with a low rate of smoke evolution and virtually no halogen gas evolution), such as polyethylene or propylene loaded with for example, the tube having a section of generally oblong shape. The cable 2 may be devoid of screening envelope between the sheath and the transmission lines.

La gaine 21 assure une protection des lignes de transmission qu'elle contient et un maintien mécanique de l'ensemble de la structure du câble.The sheath 21 protects the transmission lines that it contains and maintains the entire mechanical structure of the cable.

Les lignes de transmission incluent :

  • une ligne 22 de transmission de signaux de données informatiques,
  • une ligne 23 de transmission de signaux téléphoniques, et
  • une ligne 24 de transmission de signaux de télévision.
Transmission lines include:
  • a line 22 for transmitting computer data signals,
  • a line 23 for transmitting telephone signals, and
  • a line 24 for transmitting television signals.

La ligne 22 de transmission de signaux de données informatiques comprend deux paires 221 et 222 d'éléments conducteurs et est dépourvue d'enveloppe de blindage. Chaque paire 221 et 222 est constituée de deux éléments conducteurs 223 torsadés ensemble. Chaque élément conducteur 223 comprend une âme conductrice 224 de diamètre cuivre autour de 0.5 mm et une enveloppe isolante 225 en un matériau présentant de faibles pertes diélectriques, tel que du polyéthylène, entourant l'âme conductrice 224.The computer data signal transmission line 22 comprises two pairs 221 and 222 of conductive elements and is devoid of shielding envelope. Each pair 221 and 222 consists of two conductive elements 223 twisted together. Each conductive element 223 comprises a conductive core 224 of copper diameter around 0.5 mm and an insulating envelope 225 made of a material having low dielectric losses, such as polyethylene, surrounding the conductive core 224.

La ligne 23 de transmission de signaux téléphoniques comprend une unique paire 231 d'éléments conducteurs et est également dépourvue d'enveloppe de blindage. La paire 231 est constituée de deux éléments conducteurs 233 torsadés ensemble. Chaque élément conducteur 233 comprend une âme conductrice 234 de diamètre cuivre autour de 0.5 mm et une enveloppe isolante 235 en polyéthylène, entourant l'âme conductrice 234.The line 23 for transmitting telephone signals comprises a single pair 231 of conducting elements and is also devoid of shielding envelope. The pair 231 consists of two conductive elements 233 twisted together. Each conductive element 233 comprises a conductive core 234 of copper diameter around 0.5 mm and an insulating jacket 235 made of polyethylene, surrounding the conductive core 234.

La ligne 24 de transmission de signaux de télévision comprend une paire 241 d'éléments conducteurs constituée de deux éléments conducteurs 243 torsadés ensemble, une enveloppe de blindage 246 entourant la paire d'éléments conducteurs et un fil de continuité 247. Chaque élément conducteur 243 comprend une âme conductrice 244 et une enveloppe isolante 245 entourant l'âme conductrice 244.The television signal transmission line 24 comprises a pair 241 of conducting elements consisting of two conductive elements 243 twisted together, a shielding envelope 246 surrounding the pair of conductive elements and a continuity wire 247. Each conductive element 243 comprises a conductive core 244 and an insulating jacket 245 surrounding the conductive core 244.

L'âme conductrice 244 est formée en cuivre et présente un diamètre de l'ordre de 0,580 millimètres. Cela permet de transmettre des signaux de télévision satellite présentant une fréquence de 2200 MHz sur une distance de transmission de l'ordre de 40 mètres. Pour des fréquences inférieures, la distance de transmission pourra être supérieure.The conductive core 244 is formed of copper and has a diameter of the order of 0.580 millimeters. This makes it possible to transmit satellite television signals having a frequency of 2200 MHz over a transmission distance of the order of 40 meters. For lower frequencies, the transmission distance may be greater.

Il est possible de prévoir une âme conductrice présentant un diamètre supérieur à 0,580 millimètres afin de diminuer l'affaiblissement du câble et ainsi d'obtenir une distance de transmission supérieure. Le diamètre de l'âme doit toutefois de préférence rester compatible avec les prises de connexion standards RJ 45. Cependant, l'utilisation de connecteurs spécifiques permet éventuellement de ne pas limiter le diamètre de l'âme.It is possible to provide a conductive core having a diameter greater than 0.580 millimeters in order to reduce the weakening of the cable and thus to obtain a higher transmission distance. The diameter of the core should, however, preferably remain compatible with standard RJ 45 jacks. However, the use of specific connectors may not limit the diameter of the core.

L'enveloppe isolante 245 est formée en un matériau présentant de faibles pertes diélectriques, tel que du polyéthylène. Afin d'optimiser les performances d'affaiblissement en haute fréquence, l'enveloppe isolante 245 peut être formée d'une matière polyéthylène présentant une structure en triple couche (peau-mousse-peau). Cette structure permet d'obtenir un taux d'expansion supérieur à 60%, ce qui contribue à améliorer les performances diélectriques de l'isolant et ainsi à réduire le diamètre de l'élément conducteur 243 pour une impédance de 100 ohms.The insulating jacket 245 is formed of a material having low dielectric losses, such as polyethylene. In order to optimize the high frequency attenuation performance, the insulating jacket 245 may be formed of a polyethylene material having a triple layer structure (skin-foam-skin). This structure makes it possible to obtain a expansion rate greater than 60%, which contributes to improving the dielectric performance of the insulation and thus to reduce the diameter of the conductive element 243 for an impedance of 100 ohms.

L'enveloppe de blindage 246 est formée d'un ruban d'aluminium enroulée en hélice autour de la paire 241. L'enveloppe de blindage 246 permet d'isoler la paire 241 d'éléments conducteurs transportant les signaux de télévision, afin de protéger la ligne de transmission de signaux de télévision des interférences.The shielding casing 246 is formed of an aluminum ribbon wound helically around the pair 241. The shielding casing 246 serves to isolate the pair 241 of conductive elements carrying the television signals, in order to protect the television signal transmission line interference.

Le fil de continuité 247 est un fil de cuivre s'étendant le long de l'enveloppe de blindage et est disposé en contact avec celle-ci. Le fil de continuité 247 est destiné à être relié à la terre.The continuity wire 247 is a copper wire extending along the shielding shell and is disposed in contact therewith. The continuity wire 247 is intended to be connected to the ground.

Chaque paire 221, 222, 231 et 241 présente une impédance d'environ 100 Ohms.Each pair 221, 222, 231 and 241 has an impedance of about 100 ohms.

Dans ce premier mode de réalisation, les paires 221, 222 et 231 sont assemblées entre elles par torsion avec un pas d'assemblage sensiblement égal à 120 millimètres, tandis que la paire 241 n'est pas assemblée avec les autres paires. Le faisceau formé par les paires assemblées 221, 222 et 231 s'étend à côté de la ligne 24 de transmission de signaux de télévision, parallèlement à celle-ci.In this first embodiment, the pairs 221, 222 and 231 are assembled together by torsion with an assembly pitch substantially equal to 120 millimeters, while the pair 241 is not assembled with the other pairs. The beam formed by the assembled pairs 221, 222 and 231 extends next to the television signal transmission line 24, parallel thereto.

Cet agencement des lignes de transmission permet d'obtenir une structure compacte et est adapté pour être logé dans une gaine 21 de protection présentant une section légèrement aplatie. Grâce à un faible encombrement et une forme aplatie, le câble peut être facilement intégré dans une habitation.This arrangement of the transmission lines provides a compact structure and is adapted to be housed in a protective sheath 21 having a slightly flattened section. With a small footprint and a flattened shape, the cable can be easily integrated into a home.

La fabrication du câble 2 requiert six opérations :

  • quatre opérations de pairage pour former les paires 221, 222, 231 et 241, dont une opération nécessitant un rubanage simultané,
  • une opération d'assemblage des trois paires 221, 222, 231, et
  • une opération de gainage de l'ensemble constitué des trois paires 221, 222, 231 assemblées et de la paire blindée 241.
The manufacture of cable 2 requires six operations:
  • four pairing operations to form pairs 221, 222, 231 and 241, including an operation requiring simultaneous taping,
  • an assembly operation of the three pairs 221, 222, 231, and
  • a sheathing operation of the assembly consisting of the three pairs 221, 222, 231 assembled and the shielded pair 241.

La figure 3 représente un câble 3 de communication multimédia, conforme à un deuxième mode de réalisation de l'invention.The figure 3 represents a multimedia communication cable 3, according to a second embodiment of the invention.

Le câble 3 est identique au câble 2 décrit précédemment, excepté que la paire 231 de la ligne 23 de transmission de signaux téléphoniques n'est pas assemblée avec les paires 221 et 222 de la ligne 22 de transmission de signaux de données informatiques.The cable 3 is identical to the cable 2 described above, except that the pair 231 of the line 23 for transmitting telephone signals is not assembled with the pairs 221 and 222 of the line 22 for transmitting computer data signals.

En outre, la ligne 22 de transmission de signaux de données réseau et la ligne 23 de transmission de signaux téléphoniques sont agencées de part et d'autre de la ligne 24 de transmission de signaux de télévision.In addition, the line 22 for transmitting network data signals and the line 23 for transmitting telephone signals are arranged on either side of the line 24 for transmitting television signals.

Cet agencement permet de positionner la ligne 24 de transmission de signaux de télévision sensiblement à l'endroit de la fibre neutre du câble. Cela permet de minimiser les contraintes mécaniques générées dans les éléments 243 lorsque le câble est soumis à des torsions lors de son installation.This arrangement makes it possible to position the television signal transmission line 24 substantially at the location of the neutral fiber of the cable. This makes it possible to minimize the mechanical stresses generated in the elements 243 when the cable is subjected to twisting during its installation.

La fabrication du câble 3 requiert six opérations :

  • quatre opérations de pairage pour former les paires 221, 222, 231 et 241, dont une opération nécessitant un rubanage simultané,
  • une opération d'assemblage des deux paires 221, 222, et
  • une opération de gainage de l'ensemble constitué des paires 221, 222 assemblées, de la paire 231 et de la paire blindée 241.
The manufacture of cable 3 requires six operations:
  • four pairing operations to form pairs 221, 222, 231 and 241, including an operation requiring simultaneous taping,
  • an assembly operation of the two pairs 221, 222, and
  • a sheathing operation of the assembly consisting of pairs 221, 222 assembled, the pair 231 and the shielded pair 241.

La figure 4 représente un câble 4 de communication multimédia, conforme à un troisième mode de réalisation de l'invention.The figure 4 represents a multimedia communication cable 4, according to a third embodiment of the invention.

Le câble 4 est identique au câble 3 décrit précédemment, excepté que la ligne 22 de transmission de données de réseau comprend une quarte 226 d'éléments conducteurs, la quarte 226 d'éléments conducteurs étant constituée de quatre éléments conducteurs 223 torsadés ensemble en une seule opération.The cable 4 is identical to the cable 3 described above, except that the network data transmission line 22 comprises a quadrant 226 of conductive elements, the quadrant 226 of conductive elements consisting of four conductive elements 223 twisted together in a single surgery.

Cet agencement présente les mêmes avantages que l'agencement de la figure 3. En outre, l'assemblage en quarte 226 présente un encombrement réduit par rapport à l'assemblage sous forme de deux paires 221, 222 torsadées.This arrangement has the same advantages as the arrangement of the figure 3 . In addition, the quarter assembly 226 has a smaller footprint compared to the assembly in the form of two pairs 221, 222 twisted.

De plus, cet agencement permet de réduire le nombre d'opérations nécessaires pour fabriquer le câble.In addition, this arrangement reduces the number of operations required to manufacture the cable.

La fabrication du câble 4 requiert en effet quatre opérations :

  • deux opérations de pairage pour former les paires 231 et 241, dont une opération nécessitant un rubanage simultané,
  • une opération de quartage pour former la quarte 226, et
  • une opération de gainage de l'ensemble constitué de la quarte 226, de la paire 231 et de la paire blindée 241.
The manufacture of the cable 4 indeed requires four operations:
  • two pairing operations to form pairs 231 and 241, including an operation requiring simultaneous taping,
  • a quartering operation to form the quarter 226, and
  • a cladding operation of the assembly consisting of the quarter 226, the pair 231 and the shielded pair 241.

La figure 5 représente un câble 5 de communication multimédia, conforme à un quatrième mode de réalisation de l'invention.The figure 5 represents a multimedia communication cable 5 according to a fourth embodiment of the invention.

Le câble 5 est identique au câble 4 décrit précédemment, excepté que la gaine de protection 21 comprend trois compartiments 212, 213 et 214, chaque compartiment recevant respectivement une ligne de transmission 22, 23 et 24 correspondante.The cable 5 is identical to the cable 4 described above, except that the protective sheath 21 comprises three compartments 212, 213 and 214, each compartment respectively receiving a transmission line 22, 23 and 24 corresponding.

Chaque compartiment 212, 213 et 214 est constitué d'un tube en en PVC (polychlorure de vinyle) ou en un matériau LSOH (matériau à faible taux de dégagement de fumées et quasi-absence de dégagement de gaz halogénés), tel que du polyéthylène ou du propylène chargé par exemple, le tube présentant une section de forme générale circulaire.Each compartment 212, 213 and 214 consists of a tube made of PVC (polyvinyl chloride) or an LSOH material (material with a low rate of smoke release and virtually no absence of halogenated gases), such as polyethylene or charged propylene for example, the tube having a section of generally circular shape.

Les compartiments 212, 213 et 214 sont disposés les uns à côté des autres de manière à ce que la gaine de protection 21 présente une section de forme générale aplatie. Le compartiment 214 recevant la ligne 24 de transmission de signaux de télévision est situé entre les compartiments 212 et 213, à l'endroit de la fibre neutre du câble. Cela permet de minimiser les contraintes mécaniques générées dans les éléments 243 lorsque le câble est soumis à des torsions lors de son installation.The compartments 212, 213 and 214 are arranged next to each other so that the protective sheath 21 has a section of generally flattened shape. The compartment 214 receiving the television signal transmission line 24 is located between the compartments 212 and 213, at the location of the neutral fiber of the cable. This makes it possible to minimize the mechanical stresses generated in the elements 243 when the cable is subjected to twisting during its installation.

La gaine de protection 21 comprend en outre des portions 215 et 216 de matière, reliant respectivement les compartiments 212 et 214, et 214 et 213 entre eux. Ces portions 215 et 216 présentent une épaisseur faible (de l'ordre de quelques dixièmes de millimètre) de manière à constituer des zones de moindre résistance pouvant être facilement déchirées manuellement afin de séparer les compartiments les uns des autres.The protective sheath 21 further comprises portions 215 and 216 of material, respectively connecting the compartments 212 and 214, and 214 and 213 between them. These portions 215 and 216 have a small thickness (of the order of a few tenths of a millimeter) so as to constitute zones of least resistance that can be easily torn manually to separate the compartments from each other.

Cet agencement présente les mêmes avantages que l'agencement de la figure 4. Il permet en outre de séparer les trois lignes de transmission tout en maintenant une protection de chacune des lignes de transmission par la gaine jusqu'à leur point de connexion.This arrangement has the same advantages as the arrangement of the figure 4 . It also makes it possible to separate the three transmission lines while maintaining a protection of each of the transmission lines by the sheath to their point of connection.

La fabrication du câble 5 requiert quatre opérations :

  • deux opérations de pairage pour former les paires 231 et 241, dont une opération nécessitant un rubanage simultané,
  • une opération de quartage pour former la quarte 226, et
  • une opération de gainage de la quarte 226, de la paire 231 et de la paire blindée 241.
The manufacture of the cable 5 requires four operations:
  • two pairing operations to form pairs 231 and 241, including an operation requiring simultaneous taping,
  • a quartering operation to form the quarter 226, and
  • a sheathing operation of the quarter 226, the pair 231 and the shielded pair 241.

Les caractéristiques des câbles conformes aux différents modes de réalisation décrits sont résumées dans le tableau suivant : Type de câble Nombre d'opération de fabrication Nombre de rubans utilisés Temps de pairage et d'assemblage (minutes par kilomètre) Masse du câble (kilogrammes par kilomètre) Câble de communication multimédia de la figure 1 6 5 88 60 Premier mode de réalisation (figure 2) 6 1 (ou 2) 58 36 Deuxième mode de réalisation (figure 3) Troisième mode de réalisation (figure 4) 4 1 (ou 2) 41 36 Quatrième mode de réalisation (figure 5) The characteristics of the cables according to the different embodiments described are summarized in the following table: Cable type Number of manufacturing operations Number of ribbons used Pairing and assembly time (minutes per kilometer) Mass of cable (kilograms per kilometer) Multimedia communication cable of the figure 1 6 5 88 60 First embodiment ( figure 2 ) 6 1 or 2) 58 36 Second embodiment ( figure 3 ) Third embodiment ( figure 4 ) 4 1 or 2) 41 36 Fourth embodiment ( figure 5 )

Les câbles proposés requièrent un nombre d'opérations de fabrication réduit par rapport au câble de communication multimédia de la figure 1. De plus, ces câbles requirent également moins de composants.The cables proposed require a number of manufacturing operations reduced compared to the multimedia communication cable of the figure 1 . In addition, these cables also require fewer components.

Du fait que la ligne de transmission de signaux de télévision n'est pas assemblée avec les autres lignes de transmission, il est possible d'assembler les autres lignes de transmission avec un pas d'assemblage supérieur à 50 millimètres. Cela permet d'accroître sensiblement la vitesse de fabrication des câbles.Since the television signal transmission line is not assembled with the other transmission lines, it is possible to assemble the other transmission lines with an assembly pitch greater than 50 millimeters. This makes it possible to substantially increase the speed of manufacture of the cables.

Il en résulte que la fabrication des câbles proposés est plus économique que le câble de communication multimédia de la figure 1.As a result, the manufacture of the proposed cables is more economical than the multimedia communication cable of the figure 1 .

En outre, les câbles proposés présentent une forme aplatie et des dimensions réduites, ce qui les rend plus discrets et plus faciles à installer, notamment dans des habitations préexistantes.In addition, the proposed cables have a flattened shape and reduced dimensions, which makes them more discreet and easier to install, especially in pre-existing homes.

Enfin, la fabrication des câbles proposés présente un impact réduit sur l'environnement, tout en présentant des performances du câble en termes de débit suffisantes pour transmettre simultanément des signaux de télévision hertzienne, des signaux de télévision satellite, des signaux téléphoniques, ainsi que des signaux de données informatiques (transportées par un réseau de communication tel qu'Internet par exemple).Finally, the manufacturing of the proposed cables has a reduced impact on the environment, while at the same time exhibiting sufficient cable performance in terms of throughput for transmitting simultaneously terrestrial television signals, satellite television signals, telephone signals, as well as computer data signals (carried by a communication network such as the Internet for example).

Claims (10)

  1. Communication and transmission cable (2, 3, 4, 5) comprising a sheath and a plurality of transmission lines extending inside the sheath, wherein the transmission lines include:
    - a computer data signal transmission line (22) comprising twisted conductive elements (223),
    - a telephone signal transmission line comprising twisted conductive elements (233), and
    - a television signal transmission line (24) comprising a pair (241) of conductive elements consisting of two conductive elements (243) twisted together, and a shielding casing (246) surrounding the pair (241) of conductive elements,
    characterised in that said computer data transmission line and said telephone signal transmission line are devoid of a shielding casing.
  2. Cable (2, 3, 4, 5) according to claim 1, wherein the television signal transmission line (24) is not assembled with the other transmission lines (22, 23).
  3. Cable (2) according to any of claims 1 or 2, wherein the network data signal transmission line (22) and the telephone signal transmission line (23) comprise three pairs (221, 222, 231) of conductive elements, each pair of conductive elements consisting of two conductive elements (223, 233) twisted together, the three pairs (221, 222, 231) of conductive elements being assembled together.
  4. Cable (2, 3) according to any of claims 1 or 2, wherein the computer data signal transmission line (22) comprises two pairs (221, 222) of conductive elements, each pair (221, 222) of conductive elements consisting of two conductive elements (223) twisted together, the two pairs (221, 222) of conductive elements being assembled together.
  5. Cable (4, 5) according to any of claims 1 or 2, wherein the computer data signal transmission line (22) comprises a quad (226) of conductive elements, the quad (226) of conductive elements consisting of four conductive elements (223) twisted together.
  6. Cable (3, 4, 5) according to any of claims 1, 2, 4 or 5, wherein the transmission lines (22, 23, 24) extend parallel with each other.
  7. Cable (3, 4, 5) according to claim 6, wherein the network data signal transmission line (22) and the telephone signal transmission line (23) are arranged on either side of the television signal transmission line (24).
  8. Cable (2, 3, 4) according to any of claims 1 to 7, wherein the sheath (21) surrounding the transmission lines (22, 23, 24) has an oblong-shaped cross-section.
  9. Cable (5) according to any of claims 1 to 7, wherein the sheath (21) surrounding the transmission lines (22, 23, 24) comprises a plurality of compartments (212, 213, 214), each compartment receiving at least one transmission line.
  10. Cable (5) according to claim 9, wherein the compartments (212, 213, 214) are longitudinally separable from each other.
EP20100170861 2009-07-27 2010-07-27 Multimedia communication and transmission cable Active EP2280402B9 (en)

Applications Claiming Priority (1)

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FR2997545B1 (en) * 2012-10-25 2014-12-26 Acome Soc Cooperative Et Participative Sa Cooperative De Production A Capital Variable CABLE FOR TRANSMITTING DATA TO PAIRS OR TWILIGHT QUARTERS
CN104934111B (en) * 2015-06-08 2017-03-08 浙江天杰实业股份有限公司 A kind of preparation method of teaching meeting cable
FR3048813B1 (en) * 2016-03-10 2018-03-16 Acome Societe Cooperative Et Participative Societe Anonyme Cooperative De Production A Capital Variable CABLE FOR COMMUNICATION AND MULTIMEDIA TRANSMISSION
FR3078435B1 (en) * 2018-02-28 2022-03-11 Acome Societe Cooperative Et Participative Sa Cooperative De Production A Capital Variable COMMUNICATION AND MULTIMEDIA TRANSMISSION CABLE

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FR2637117A1 (en) * 1988-09-27 1990-03-30 Acome Soc Coop Travailleurs Cable-TV cable for transmitting television signals
JP2004095256A (en) * 2002-08-30 2004-03-25 Yazaki Corp Composite cable and method for mounting connector to it
US7078626B2 (en) * 2004-03-12 2006-07-18 Rgb Systems, Inc. Cable apparatus for minimizing skew delay of analog signals and cross-talk from digital signals and method of making same

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FR2948487A1 (en) 2011-01-28
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EP2280402B1 (en) 2013-02-13

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