Figure 13: Mounting the switch in the rack (2)
Grounding the switch
WARNING: Correctly connecting the switch grounding cable is crucial to lightning protection and EMI protection.
The power input end of the switch has a noise filter, whose central ground is directly connected to the chassis to form the
chassis ground (commonly known as PGND). You must securely connect this chassis ground to the earth to minimize the
potential for system damage, maximize the safety at the site, and minimize EMI susceptibility of the system.
Procedure
1. Ground the switch by using one of the following methods:
• Use a grounding strip at the installation site. (See
Grounding the switch with a grounding strip on page 22.)
• Use the AC power cord connected to the switch. (See
Grounding the switch by using the AC power cord on page
23.)
NOTE: The power and grounding terminals in this section are for illustration only.
Grounding the switch with a grounding strip
WARNING: Connect the grounding cable to the grounding system in the equipment room. Do not connect it to a fire
main or lightning rod.
22 Installing the switch
