1-3
Gas
Maximum concentration (mg/m
3
)
H
2
S
0.006
NH
3
0.05
NO
2
0.04
Cl
2
0.01
Cooling
The router uses passive cooling. For better heat dissipation and cooling of the router, follow these
guidelines:
•
Keep the air vents unblocked. Maintain a minimum clearance of 100 mm (3.94 in) around the
air vents.
•
Make sure the installation site has a good ventilation system.
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the router and application
system, adversely affect the router in the following ways:
•
A conduction pattern of capacitance coupling.
•
Inductance coupling.
•
Electromagnetic wave radiation.
•
Common impedance (including the grounding system) coupling.
To prevent EMI, perform the following tasks:
•
Take measures against interference from the power grid.
•
Do not use the grounding equipment of the router together with the grounding equipment or
lightning-prevention equipment of power equipment, and keep the router far away from them.
•
Keep the router far away from high-power radio launchers, radars, and equipment with high
frequency or high current.
•
Use electromagnetic shielding when necessary.
Lightning protection
To protect the router from lightning, follow these guidelines:
•
Make sure the router is reliably grounded by using a grounding cable.
•
Make sure the power receptacle is reliably grounded.
•
Install a lightning protector at each power input end.