5
Installation checklist
Table 5 Installation checklist
Item Requirements
Result
Installation site
Ventilation
•
There is a minimum clearance of 10 cm (3.94
in) around the inlet and outlet air vents for heat
dissipation of the router chassis.
•
A good ventilation system is available at the
installation site.
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
compliant level.
•
Wear an ESD wrist strap and uniform when
touching a circuit board.
•
Place the removed 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 interface module.
EMI prevention
•
Take effective measures to reduce interference
from the power grid system.
•
Separate the grounding equipment of the
router from the grounding or lightning
protection grounding equipment of other
devices 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 reliably
grounded.
•
The grounding terminal of the AC power
receptacle is reliably 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).
•
The emergency power switch in the equipment
room is located.
Workbench
•
The workbench is stable enough.
•
The workbench is reliably grounded.
