Mounting The Switch On A Workbench; Grounding The Switch; Grounding The Switch With A Grounding Strip - H3C S5500-HI Switch Series Installation Manual

8. If you are using the rear grounding point, connect the one-hole lug grounding cable to the rear
grounding point as described in
skip this step.

Mounting the switch on a workbench

IMPORTANT:
Ensure good ventilation and 10 cm (3.9 in) of clearance around the chassis for heat dissipation.
•
Avoid placing heavy objects on the switch.
•
To mount the switch on a workbench:
1. Verify that the workbench is sturdy and well grounded.
2. Place the switch with bottom up, and clean the round holes in the chassis bottom with dry cloth.
3. Attach the rubber feet to the four round holes in the chassis bottom.
4. Place the switch with upside up on the workbench.

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 so the faradism and leakage electricity can be safely released to the earth to
minimize EMI susceptibility of the switch.
You can ground the switch in one of the following ways, depending on the grounding conditions
available at the installation site:
•

Grounding the switch with a grounding strip

Grounding the switch with a grounding conductor buried in the earth ground
•
Grounding the switch by using the AC power cord
•
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.
If a grounding strip is available at the installation site, connect the grounding cable to the grounding
strip.
"Connecting the rear grounding point to a grounding
19
strip." If not,