IBM RT-686EX manual Useful Information, Location, Ruggedness

Useful Information

USEFUL INFORMATION

Location

A clean and moisture-free environment is preferred. Make room for air circulation. Avoid areas with:

•Sudden or extreme changes in temperature.

•Extreme heat.

•Strong electromagnetic fields (near television set, motor rotation area, etc.).

•Dust or high humidity.

However, if it is necessary to work in a hostile environment, please regularly maintain your computer by cleaning dust, water, etc. to keep it under optimal condition.

Ruggedness

The computer is designed with rugged features such as vibration, shock, dust, and rain/water protection. However, there is NO WARRANTY for such features. Please provide appropriate protection while operating in harsh environments.

The computer designed to withstand rainfall from top with mild wind blowing only. Please keep the keyboard facing up, i.e., normal operating direction, to maintain water resistance. NEVER immerse the computer into water or spray water with the system up side down. It may cause permanent damage.

The D-sub connector caps on the rear of the computer are for dust and shock protection. The connectors are sealed internally. Other I/O ports and devices on the left or right must have caps tightly closed or cable inlets sealed while exposed to water or dust.

There are optional gaskets for DB-9 and DB-25 connectors. You may install them to improve rain/dust/moisture resistance on your commercial type cable. Insert the packing into the male connector (with pins) and fasten the screws.

All connectors will corrupt if exposed to water or moisture. They corrupt even faster if the power is ON. Please take proper water-resistant measures for cable connections.

The DC jack and cable are sealed which may operate with water splashing while attached. All rubber caps should be closed when there is no cable attached.

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