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2
Installation Preparation
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 access controller before cleaning it. Do not clean the access
controller using wet cloth or liquid.
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Keep the access controller away from water or dampness. Prevent water or moisture from entering
the chassis of the access controller.
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Do not place the access controller on an unstable case or desk. The access controller might be
damaged severely in case of a fall.
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Ensure proper ventilation of the equipment room and keep the ventilation vents of the access
controller free of obstruction.
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Make sure that the operating voltage is the same one labeled on the access controller.
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Do not open the chassis when the access controller is operating or when electrical hazards are
present to avoid electrical shocks.
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When replacing interface modules, wear the ESD-preventive wrist strap to avoid damaging the
interface modules.
Installation Site Checking
The WX5004 must be used indoors. You can mount the WX5004 in a cabinet or on a workbench, but
make sure that:
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Adequate clearance is reserved at the air inlet/exhaust vents for heat dissipation.
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The cabinet or workbench is in the environment that has a good ventilation system.
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The cabinet is sturdy enough to support the access controller and its accessories.
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The cabinet or workbench is well earthed.
To ensure normal operation and long service life of your access controller, install it in an environment
that meets the requirements described in the following subsections.
Requirements on Temperature and Humidity
To ensure the normal operation and service lifetime of the access controller, proper temperature and
humidity should be maintained in the equipment room.
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A long term of high humidity may lead to bad insulation, electricity leakage, mechanical property
changes, and metal components 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 endanger the
circuits on the access controller.
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A high temperature is the most undesirable condition, because it accelerates the aging of insulation
materials and thus significantly lowers the reliability and service life of the access controller.
The following table lists temperature and humidity requirements for the WX5004.
