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NI boards provide 2,000V digital, port-to-port isolation

Posted: 25 May 2005 ?? ?Print Version ?Bookmark and Share

Keywords:national instruments? ni? pci-8432? pci-8433?

National Instruments (NI) introduced four new serial interfaces for industrial applications that offer 2,000V digital, port-to-port isolation. According to the press release, the new boards?PCI-8432 (RS232) two- and four-port versions and PCI-8433 (RS485) two- and four-port versions?offer all the benefits of the 843x PCI family of serial interfaces, including superior CPU utilization, high-speed communication and configurable nonstandard baud rates.

The four new isolated boards expand the 843x family of serial interfaces, which, unlike traditional desktop serial ports, significantly decreases CPU usage through direct memory access (DMA) to the PCI bus. In addition, 843x interfaces offer advanced features such as flexible baud rates up to 2Mbps to within 1 percent accuracy, as well as universal PCI, hyperthreading and multiprocessor compatibility.

NI added that its new products are especially well-suited for industrial environments, where long RS485 cables are particularly vulnerable to electrical surges. An electrical surge on a nonisolated communication line can result in damage or destruction of all connected equipment, but incorporating isolation into an application can ensure the safety of test systems and workers.

Additional information on the PCI-843x family can be found online.

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