IBM RT-686 User Manual download pdf (Page 16)

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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IBM RT-686 User Manual Page 16