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Figure2-7 Mounting the firewall in the rack (with the wide flange of the rear mounting
brackets outside the rack)
Grounding the firewall
WARNING!
•
Correctly connecting the firewall grounding cable is crucial to lightning protection and EMI
protection.
•
Do not connect the firewall grounding cable to a fire main or lightning rod.
•
The firewall has three grounding points. Use the grounding point at the power supply side to
ground the firewall. The other two grounding points at the side panels are reserved.
You can ground the firewall in one of the following ways, depending on the grounding conditions
available at the installation site.
Grounding the firewall with a grounding strip
If a grounding strip is available at the installation site, connect the grounding cable through the
grounding strip.
To connect the grounding cable:
1.
Remove the grounding screw from the firewall chassis.
2.
Attach the grounding screw to the ring terminal of the grounding cable.
3.
Use a screwdriver to fasten the grounding screw into the grounding hole on the firewall.
4.
Remove the hex nut from the grounding strip.
5.
Use a pair of needle-nose pliers to bend a hook at the other end of the grounding cable. Attach
the hook to the grounding point, and secure the hook with a screw.
