H3C Technologies H3C S5820V2 Series Switches - Manual (Page 9)

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Preparing for installation
Safety recommendations
To avoid any equipment damage or bodily injury, read the following safety recommendations before
installation. Note that the recommendations do not cover every possible hazardous condition.
• Before cleaning the switch, remove all power cords from the switch. Do not clean the switch with wet
cloth or liquid.
• Do not place the switch near water or in a damp environment. Prevent water or moisture from
entering the switch chassis.
• Do not place the switch on an unstable case or desk. The switch might be severely damaged in case
of a fall.
• Ensure good ventilation of the equipment room and keep the air inlet and outlet vents of the switch
free of obstruction.
• Make sure the operating voltage is in the required range.
• To avoid electrical shocks, do not open the chassis while the switch is operating or when the switch
is just powered off.
• When replacing FRUs, including power modules and fan trays, wear an ESD wrist strap to avoid
damaging the units.
Examining the installation site
The switch must be used indoors.
Mount your switch in a rack and make sure:
• Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
• The rack has a good ventilation system.
• Identify the hot aisle and cold aisle at the installation site, and make sure ambient air flows into the
switch from the cold aisle and exhausts to the hot aisle.
• Identify the airflow designs of neighboring devices, and prevent hot air flowing out of the bottom
device from entering the top device.
• The rack is sturdy enough to support the switch and its accessories.
• The rack is reliably grounded.
To ensure correct operation and long service life of your switch, install it in an environment that meets the
requirements described in the following subsections.
Temperature/humidity
Maintain appropriate temperature and humidity in the equipment room.
• Lasting high relative humidity can cause poor insulation, electricity creepage, mechanical property
change of materials, and metal corrosion.