2-1
2
Preparing for Installation
Safety Precautions
To avoid any device impairment and bodily injury caused by improper use, observe these rules:
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Pull the power plug(s) out of the device before cleaning the device. Do not clean the device using
wet cloth or liquid.
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Keep the device away from water or dampness. Prevent water or moisture from entering the device
chassis.
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Do not place the device on an unstable case or desk. The device might be damaged severely in
case of a fall.
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Ensure proper ventilation in the equipment room and keep the vents of the device free of
obstruction.
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Make sure that the operating voltage is within the range as labeled on the device.
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To avoid electrical shocks, do not open the chassis when the device is operating or when electrical
hazards are present.
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When replacing interface modules, always wear an ESD-preventive wrist strap.
Installation Site Checking
The device is designed for indoor use. You can mount the device either in a rack or on a workbench, but
make sure that:
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Adequate space is reserved at the air inlet and exhaust vents for heat dissipation.
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The rack or workbench has a good ventilation system.
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The rack is sturdy enough to support the device and its accessories.
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The rack or workbench is well grounded.
To ensure normal operation and a long service life of your device, install it in an environment that meets
the following requirements.
Temperature and Humidity
The temperature and humidity in the equipment room must be kept within a proper range.
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Lasting high humidity may lead to bad insulation, electricity creepage, mechanical property
changes, and corrosion.
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If the relative humidity is too low, captive screws may become loose as a result of contraction of
insulation washers, and static electricity may be produced in a dry environment to interfere the
circuits on the device.
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Lasting high temperatures accelerate the aging of insulation materials and thus significantly lower
the reliability and service life of the device.
The temperature and humidity requirements for the WX3000 series are listed in Table 2-1.
