2-20
Connecting the grounding cable to the chassis
1.
Unpack the grounding cable and grounding screw.
2.
Use the grounding screw to attach the single-hole ring terminal of the grounding table to the
grounding point and then fasten the screw (clockwise direction), as shown in
As a best practice, use a torque of 16 kgf-cm (1.57 Nm) to fasten the grounding screws.
Figure2-25 Attaching the grounding cable to the chassis
Grounding the switch by using a grounding strip
CAUTION:
•
Correctly connecting the grounding cable is crucial to lightning protection and EMI protection.
You must connect the grounding cable correctly and reliably for the switch.
•
Do not connect the grounding cable 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.
To ground the switch by using a grounding strip:
1.
Make sure one end of the grounding cable has been attached to the switch.
2.
Remove the hex nut from a grounding post on the grounding strip.
3.
Cut the grounding cable to a length according to the distance between the switch and the
grounding strip.
4.
Attach a ring terminal to the grounding cable:
a.
Strip 5 mm (0.20 in) of insulation off the end of the grounding cable.
b.
Slide the heat-shrink tubing onto the cable and insert the bare metal part into the end of the
ring terminal.
c.
Use a crimping tool to secure the metal part of the cable to the ring terminal.
d.
Slide the heat-shrink tubing down the cable until the tube covers the joint.
e.
Use a heat gun to shrink the tubing around the cable.
