2-15
Figure2-21 Mounting the switch on a workbench (2) (S6520X-54HF-EI switch as an example)
Grounding the switch
WARNING!
•
Correctly connecting the grounding cable is crucial to lightning protection and ESD and EMI
protection. You must connect the grounding cable correctly and reliably for the switch.
•
For information about lightning protection for the switch, see
H3C Network Devices Lightning
Protection Guide
.
To ensure correct operation of electrical devices and personal safety, you must ground electrical
devices reliably. Use a grounding cable to connect the device to the earthing facility at the installation
site.
Reliable grounding of devices brings the following benefits:
•
Protects human body from electric shocks.
•
Protects devices and power and data lines from damages.
•
Prevents electrical fires, lightning strokes, electromagnetic coupling interferences, ESD
damages, and ensures correct operation of the power system.
Select a grounding method based on the installation environment.
NOTE:
The power and grounding terminals in this section are for illustration only.
Grounding the switch with a grounding strip
CAUTION:
•
Connect the grounding cable to the grounding strip in the equipment room. Do not connect it to a
fire main or lightning rod.
•
To guarantee the grounding effect and avoid switch damage, use the grounding cable provided
with the switch to connect the switch to a grounding strip in the equipment room.
If a grounding strip is available at the installation site, use the grounding cable provided with the
switch to connect the switch to the grounding strip.
Connecting the grounding cable to the chassis
1.
Remove the grounding screw from the grounding hole in the chassis.