Computer/Embedded Technology


Arcnet hub provides easy access to networks

29 June 2005 Computer/Embedded Technology

Contemporary Controls' Arcnet AI-USB hub will alter the way you hook up to an Arcnet network, according to George Karones, engineering manager for CC. He says: "The real beauty of this product is that it gives the user easy access to the network via a PC without removing the cover. It helps to prevent any aggravation for the service technician as it eliminates the installation of an Arcnet card in the PC."

The AI-USB is described as an Arcnet active hub that provides similar hub functionality as an AI Series hub, but allows access to the universal serial bus (high-speed USB2.0) to a host PC. It is a three-port hub - two external Arcnet ports and one internal. The internal hub port has an embedded connection to a USB Arcnet adapter (network interface module) resident to the AI-USB. The USB connection is brought out so that a laptop or desktop computer can gain plug-and-play access to an Arcnet network.

USB is a very fast and convenient method of accessing an Arcnet network without the need of removing a cover and installing a network interface module into a computer. One might ask what is an ideal application for the AI-USB? Such an application is sought-after when wanting temporary access to an Arcnet network by simply hooking up to a laptop computer using its USB port. With the AI-USB permanently connected to the Arcnet network, network field wiring is not disturbed when attaching the USB cable. In this way an Arcnet network can be monitored, stations can be configured, and troubleshooting can be accomplished with minimal disruption to the network.

With two external hub ports, the AI-USB can be inserted between two bus connections and function as a bus extender. Models are available for coaxial bus, twisted-pair bus, and both AC- and DC-coupled EIA-485.



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