3Com Router 6000 Family
Installation Manual
Chapter 2
Preparing for Installation
3Com Corporation
2-1
Chapter 2 Preparing for Installation
2.1 General Site Requirements
The Router 6000 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 causing the
complementary metal-oxide-semiconductor (CMOS) circuitry to fail.
A proper temperature condition must also be maintained to prevent premature material
aging and degraded reliability accompanying high temperature conditions.
The following table lists the temperature and humidity requirements.
Table 2-1 Temperature/humidity requirements in the equipment room
Temperature Relative humidity
0oC to 40oC (32oF to 104oF) 5% to 90%
2.1.2 Cleanness
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 x 104
(No visible dust on desk in
three days)
Note: Dust particles’ diameter ≥ 5µm