Daisy chaining device servers via ethernet

H - Electricity – 04 – L

Patent

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Details

H04L 12/56 (2006.01) H04W 92/18 (2009.01) H04L 12/10 (2006.01) H04L 12/40 (2006.01) H04L 12/66 (2006.01)

Patent

CA 2626729

A device server intended for attaching serial devices to a network includes Ethernet communications, an Ethernet switch, and serial communication capability so that multiple device servers are connected in a "daisy chain" or series pattern. Galvanic isolation of the power supply from the housing and communication ports, screw terminal and modular connections, DIN rail mounting, broad power supply voltage ranges or "Power-over- Ethernet" and operator visible indicator lamps with a pulse stretching feature greatly simplify installation and use.

L'invention concerne un serveur de dispositifs destiné à relier des dispositifs en série à un réseau. Ce serveur comprend des communications Ethernet, un commutateur Ethernet et une capacité de communication en série, des serveurs de dispositifs multiples étant ainsi connectés selon une configuration en série ou "en guirlande". Une isolation galvanique de l'alimentation vis-à-vis du boîtier et des ports de communication, des connexions par bornes à vis ou modulaires, un montage sur rail DIN, de larges gammes de tension d'alimentation ou une alimentation par Ethernet et des voyants visibles par l'opérateur pourvus d'une caractéristique d'allongement d'impulsion permettent de simplifier sensiblement l'installation et l'utilisation.

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