H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 12)

6
Item Requirements Result
ESD prevention
• The equipment and rack are well grounded.
• The equipment room is dust-proof.
• The humidity and temperature are at a proper level.
• Wear an ESD-preventive wrist strap. Make sure the wrist
strap makes good skin contact and is well grounded
when installing FRUs.
• Place the removed interface card on an antistatic
workbench, with the face upward, or put it into an
antistatic bag.
• Touch only the edges instead of electronic components
when observing or moving a removed interface card.
EMI prevention
• Take effective measures to protect the power system from
the power grid system.
• Separate the protection ground of the device from the
grounding device or lightning protection grounding
device as far as possible.
• Keep the device far away from radio stations and radar
and high-frequency devices working in high current.
• Use electromagnetic shielding when necessary.
Lightning
protection
• The grounding cable of the chassis is well grounded.
• The grounding terminal of the AC power receptacle is
well grounded.
• A port lightning arrester is installed. (Optional)
Electricity safety
• Equip a UPS.
• In case of emergency during operation, switch off the
external power switch.
Rack-mounting
requirements
• Install the device in an open rack if possible. If you install
the device in a closed cabinet, make sure that the
cabinet is equipped with a good ventilation system.
• The rack is sturdy enough to support the weight of the
device and installation accessories.
• The size of the rack is appropriate for the device.
• The front and rear of the rack are at least 0.8 m (31.50 in)
away from walls or other devices.
Safety
precautions
• The device is far away from any moist area and heat source.
• You have located the emergency power switch in the equipment room.
Accessories Accessories provided with the device.
Reference
• Documents shipped with the device.
• Online documents.