Local area network cabling arrangement

Details Local area network cabling arrangement Local area network cabling arrangement

H - Electricity

01

B

H01B 11/12 (2006.01) H01B 11/02 (2006.01) H04L 12/28 (2006.01)

Patent

CA 2228328

A cabling media which is suitable for data transmission with relatively low crosstalk includes a plurality of metallic conductors-pairs, each pair including two plastic insulated metallic conductors which are twisted together. The characterization of the twisting is important and relates to parameters such as twist length as well as core strand length/lay. More specifically, particular combinations of twist lengths and core strand length/lay are purposely selected for each insulated pair of the cable in order to achieve performance capabilities that significantly surpass those required under TIA/EIA-568A. In one particular embodiment of this invention, a cable comprises as its transmission media, four twisted pair of individually insulatedconductors with each of the insulated conductors including a metallic conductor and an insulation cover which encloses the metallic conductor. The twisting together of the conductors of each pair is characterized as specifically set out herein and the plurality of transmission media are enclosed in a sheath system which in a most simplistic embodiment may be a single jacket made of a plastic material. As a result of the particular twist scheme employed for the conductor pairs, operational performance of the resulting cable is improved. Also, the cable of this invention is relatively easy to connect and is relatively easy to manufacture and install.

Dispositif de câblage permettant de transmettre des données avec relativement peu de diaphonie. Comprend un certain nombre de paires de conducteurs métalliques, composées chacune de deux conducteurs métalliques à isolant plastique torsadés. La caractérisation de la torsion est importante et renvoie à des paramètres tels que la longueur de torsade et la longueur/section du toron. Plus précisément, des combinaisons particulières de longueurs de torsade et de longueur/section du toron sont sélectionnées pour chaque paire isolée du câble afin d'obtenir une performance sensiblement supérieure aux exigences de la TIA/EIA-568A. Dans une version particulière de l'invention, un câble comprend comme support de transmission quatre paires torsadées de conducteurs isolés individuellement, comprenant chacun un conducteur métallique recouvert d'une gaine isolante. Les conducteurs de chaque paire sont torsadés selon la caractérisation précitée et les divers supports de transmission mentionnés sont protégés par un système de gainage qui, dans une version rudimentaire, pourrait consister en une unique gaine de matière plastique. La technique de torsion particulière employée pour les paires de conducteurs améliore la performance opérationnelle du câble produit. En outre, le câble est relativement facile à connecter, à fabriquer et à installer.

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