6
Item Requirements
Result
Temperature
0°C to 45°C (32°F to 113°F).
Relative humidity
5% to 90% (noncondensing).
Cleanness
•
Dust
concentration
≤
3 × 10
4
particles/m
3
.
•
No visible dust on desk within three days.
ESD prevention
•
The equipment and floor are reliably grounded.
•
The equipment room is dust-proof.
•
The humidity and temperature are at a proper
level, respectively.
•
Wear an ESD wrist strap and uniform when
touching a circuit board.
•
Place the removed memory module, CF card, or
interface module 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
memory module, CF card, or interface module.
EMI prevention
•
Take effective measures to protect the power
system from the power grid system.
•
Separate the protection ground of the router from
the grounding device or lightning protection
grounding device as far as possible.
•
Keep the router far away from radio stations, 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.)
•
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
•
Equip an uninterrupted power supply (UPS).
•
In case of emergency during operation, switch off
the external power switch.
Workbench
•
The workbench is stable enough.
•
The workbench is well grounded.
Rack-mounting
requirements
•
The rack is equipped with a good ventilation
system.
•
The rack is sturdy enough to support the weight of
the router and installation accessories.
•
The size of the rack is appropriate for the router.
•
The front and rear of the rack are at least 0.8 m
(2.62 ft) away from walls or other devices.
Safety
precautions
•
The router is far away from any moist area and heat source.
•
The emergency power switch in the equipment room is located.
Tools
•
Installation accessories supplied with the router.
•
User supplied tools.
Reference
•
Documents shipped with the router.
•
Online
documents.
