H3C Technologies H3C MSR 800 - Manual (Page 11)

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Item Requirements Yes No
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.
Tools
• Installation accessories supplied with the router are ready.
• User-supplied tools are ready.
Reference
• Documents shipped with the router are available.
• Online documents are available.