Hangzhou Hechang Trading S3100-SI Benutzerhandbuch

Quick Start 
H3C S3100-SI Series Ethernet Switches 

Chapter 2  Installation 

Preparation

 

2-3 

damage to the switch. High temperature for a long time will speed up 
the aging of insulation material, greatly lower the reliability of the 
switch and greatly reduce the life span of the switch. 

Dust is a potential hazard to the safe operation of the switch. 

Falling on the equipment, it may cause electrostatic adsorption, and 
hence result in poor contact of the metal connectors or connection 
points. This is more likely to happen when the indoor relative humidity 
is low; in this case, it may not only shorten the device’s working life, 
but also incur communication failure. The requirements on dust 
content and particle diameter in the equipment room are shown in the 
following table: 

Requirements on dust content in the equipment room 

Dust particle 

particle/m³ 

≤ 3 x 10

4

 (No visible dust 

on desk in three days) 

Note: Dust particle diameter ≥ 5µm 

 

Besides the requirements on dust, rigorous requirements are 

also set on the content of chloride, acid, and sulfide in the air of the 
equipment room. These kinds of harmful gas will accelerate metal 
corrosion and aging of certain parts. The equipment room should be 
protected from the intrusion of harmful gases such as SO

2

, H

2

S, NH

3

 

and Cl

2

. The limits of these kinds of harmful gas are shown in the 

following Table.