H3c-technologies H3C SecPath F100-C-EI Manuel d'utilisateur télécharger pdf (Page 22)

Installation Manual

H3C SecPath F100-C-EI Firewall

Chapter 2 Preparing for Installation

2-2

Table 2-1 Temperature/humidity requirements in the equipment

room

Temperature Relative humidity

0°C to 45°C (32°F to 113°F)

10% to 95% (noncondensing)

2.1.2 Cleanness Requirements

I. Dust prevention requirements

Dust undermines the normal operation of your device. Dust on

the equipment can cause electrostatic adsorption, which degrades the

contact performance of the metal connectors or connection points.

This not only shortens the service life or your device, but also causes

communication failures.

This is more likely to happen when the relative humidity in the

equipment room is too low.

The contents of the dust in the equipment room must not exceed

the limit as shown in the following table:

Table 2-2 Limitation on dust content in equipment room

Substance Content (particles/m³)

Dust

≤ 3 X 10

(No visible dust on desk over three days)

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 78 79

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H3c-technologies H3C SecPath F100-C-EI Manuel d'utilisateur Page 22