Installation Manual
H3C SecPath F100-A Firewall
Chapter 2 Installation Preparations
2-1
Chapter 2 Installation Preparations
2.1 General Site Requirements
The H3C SecPath F100-A firewall must be used indoors. To guarantee normal
operation and longevity of your device, its installation site should meet the
requirements described in this chapter.
2.1.1 Temperature and Humidity
The equipment room must maintain proper humidity to prevent poor insulation,
electricity creepage and corrosion accompanying high humidity, or washer contraction
and electrostatic discharge accompanying low humidity. In dry environments where the
relative humidity is very low, electrostatic discharge (ESD) is more likely to happen
causing the complementary metal-oxide-semiconductor (CMOS) circuitry to fail.
Table 2-1 lists the temperature and humidity requirements.
Table 2-1
Temperature/humidity requirements in the equipment room
Temperature
Relative humidity
0
°
C to 40
°
C (32
°
F to 104
°
F)
10% to 90% (noncondensing)
2.1.2 Cleanliness
Dust is hazardous to the operating safety of your device. Dust buildup on the chassis
may result in static absorption, causing poor contact of metal components or points.
When indoor humidity is extremely low, this is more likely to happen to shorten the
useful life of the device and cause communication failures.
The equipment room must be free of explosion hazards and the electrical and magnetic
conductible dust as well. The following table lists the limits on dust particles:
Table 2-2
Limits on the dust particles in the equipment room
Mechanical active
material
Unit
Content
Dust particle
Particle/m³
≤
3
×
10
4
(No visible dust on desk in three days)
Note: Dust particles diameter = 5µm
