21
Figure 28
Mounting the switch in the rack (2)
8.
If you are using the rear grounding point, connect the one-hole lug grounding cable to the rear
grounding point as described in "
Connecting the rear grounding point to a grounding strip
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 a 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.
