Installation manual

4
Pre-installation checklist
Item Re
q
uirements Yes No
Installation
site
Ventilation
• There is a minimum clearance of 10 cm (3.9 in) around
the router chassis intake and exhaust vents for heat
dissipation.
• The installation site ventilation system is adequate.
Temperature 0°C to 40°C (32°F to 104°F)
Relative humidity 5% to 90% (noncondensing)
Cleanness Dust concentration ≤ 3 × 10
4
particles/m
3
ESD prevention
• The equipment and floor are correctly grounded.
• The equipment room is dust-controlled.
• Humidity and temperature are maintained at acceptable
levels.
• Wear an ESD wrist strap when inspecting or handling a
circuit board.
EMI prevention
• Take measures to protect the power system from the
power grid system.
• Keep the protection ground of the router as far away from
the grounding device or lightning protection grounding
device as possible.
• Keep the router far away from radio transmitters, radar,
and high-frequency or high-voltage devices.
• Use electromagnetic shielding when necessary.
Lightning protection
• The grounding cable of the chassis is grounded correctly.
• The grounding terminal of the AC power receptacle is
grounded correctly.
• A port lightning arrester is installed. (Optional.)
• A power lightning arrester is installed. (Optional.)
• A signal lightning arrester is installed at the input end of
an external signal cable. (Optional.)
Electricity safety
• Install a UPS.
• In case of emergency during operation, switch off the
external power switch.
Workbench
• The workbench is stable.
• The workbench is grounded correctly.
Safety
precautions
• The router is far away from any sources of heat or moisture.
• The emergency power switch in the equipment room is identified and accessible.
Installation
accessories
and tools
• Installation accessories supplied with the router are ready.
• User-supplied accessories and tools are ready.
Reference
• Documents shipped with the router are available.
• Online documents are available.