Ruggedized analog front-end for a network communicative...

H - Electricity – 03 – H

Patent

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Details

H03H 11/02 (2006.01) H04L 5/14 (2006.01) H04L 12/02 (2006.01) H04L 12/28 (2006.01) H04L 29/02 (2006.01)

Patent

CA 2551122

A ruggedized analog front-end for interconnecting a network communicative device to a two-conductor based network operable in a train-like or other harsh environment. The front-end has a coupling circuit having first and second coupling channels providing isolation, impedance matching and energy transfer between a common mode filter circuit connectable to the two-conductor based network, and an amplifier and an attenuator respectively connectable to output and input of the network communicative device. The front-end has a power supply circuit for operative power supply of electronic components of the analog front-end.

La présente invention concerne un frontal analogique renforcé permettant de connecter des entre eux un dispositif de communication par réseau à un réseau à base de deux conducteurs qui peut fonctionner dans un environnement de type train ou dans un autre environnement hostile. Ce frontal possède un circuit de couplage possédant un premier et un second canal de couplage fournissant une isolation, une correspondance d'impédance et un transfert d'énergie entre un circuit filtre de mode commun connectable au réseau à base de deux conducteurs et, un amplificateur et un atténuateur respectivement connectables à la sortie et à l'entrée du dispositif de communication par réseau. Ce frontal possède un circuit d'alimentation électrique destiné à alimenter en puissance de fonctionnement des composants électroniques de ce frontal analogique.

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