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QSI White Paper Details How to Choose the Best Operator Interface for a Rugged Environment.

Salt Lake City, Utah. 27 March 2007. Choosing the best industrial human-machine interface (HMI) for your application involves knowing your environment and the technologies that are best suited to it. QSI Corporation, manufacturer of rugged operator interface and mobile data terminals, has recently published the white paper, "Operator Interface Buyer's Guide". This free white paper provides readers details on the key components of an operator interface terminal and the six environmental factors which can have a dramatic affect on the usability of an HMI.

"There is a big difference between a consumer-grade computer you can buy at your local computer store and an industrial-grade terminal," said Todd Christensen, Director of Marketing for QSI Corporation. "Unlike industrial human-machine interfaces, consumer-grade computers are not designed to withstand high levels of shock, vibration, temperature variation, fluid and chemical use they are often subjected to on the factory floor, in vehicles and out in the elements."

Human-machine interface terminals used in rugged environments require specific technology for optimum performance. QSI's white paper helps readers understand the details of display screen, input device and communications technology before they specify and purchase an HMI terminal. It also helps users address environmental concerns such as temperature, moisture, shock, vibration, electrical noise, dirt and glare.

Individuals interested in attaining a free copy of "Operator Interface Buyer's Guide" may download the document at http://www.qsicorp.com/support/whitepaper/.

About QSI Corporation

Established in 1983, QSI Corporation is a leading manufacturer of rugged operator interface and mobile data terminals (TREQ®) for industrial OEMs and commercial vehicle systems integrators. QSI's human machine interface and mobile data terminal products include character and graphic terminals that are programmable, customizable, CE Certified and NEMA 4/12/13 rated. Numerous interfaces are available, including EIA-232, EIA-422, EIA-485, J1708/1939, USB, Ethernet and Power-over- Ethernet. QSI excels at building custom and semi-custom terminals able to withstand high levels of shock, vibration, extreme temperatures, humidity and other environmental parameters. All QSI Corporation products are designed and manufactured in the USA at the company's headquarters in Salt Lake City, Utah. For more information, contact QSI Corporation at 801-466-8770 or visit www.qsicorp.com.

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