Installation Manual 
Quidway S3000-EI Series Ethernet Switches
  Chapter 3  Installation
 
3-2 
  Note: 
The angle irons are used for fixing rather than bearing. When the switch is mounted in a 19-inch 
standard rack, it should be borne by rails (fixed on the rack). 
 
3.1.2  Mounting the Switch on a Workbench 
If you are not equipped with 19-inch standard cabinet, you may have to place the 
switch on a clean workbench, which is a relatively easy way to operate. Users need 
only pay attention to the following during such operation: 
  Make sure that the workbench is stable and well grounded. 
  Leave about 10 centimeters of space around the switch for heat dissipation. 
  Do not place heavy objects on top of the switch. 
3.2  Connection of Power Cord and Ground Wire 
3.2.1  Connecting AC power cord 
I. AC power socket (Recommended) 
A monophase 3-wire power socket with a neutral point connector, or a multi-functional 
power socket for the computer is recommended. The neutral point of the power in a 
building must be reliably grounded. Normally, the neutral point of the power supply 
system in a building is buried in the ground during the construction and wiring. The 
user must make sure that the power supply for the building is grounded. 
Neutral point
Zero line
Live line
 
Figure 3-2 Recommended AC power socket 
II. Connecting AC power cord 
Step 1: Connect one end of the ground wire of the chassis that is shipped with the 
switch to the grounding screw, and properly ground the other end as near as 
possible. 
Step 2: Connect one end of the power cord that is shipped with the switch to the 
power socket, and plug the other end to the DC power socket for external power 
supply.