7-11
Step1
Face the front panel of the firewall.
Step2
Locate the blank panel to be removed, loosen the two captive screws by turning them counterclockwise
with a Philips screwdriver. Then, remove the blank panel.
Figure 7-15
Remove a blank panel from an LPU slot
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Place the removed blank panels and screws in a safe place for later use.
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It is recommended to install blank panels in all the empty slots to ensure the normal ventilation in
the firewall.
Installing a Blank Panel
After an LPU is removed from the firewall, it is recommended to install a blank panel if you do not install
a new LPU in the slot.
To install a blank panel, reverse the removal procedure.
Step1
Face the front panel of the firewall.
Step2
Locate the slot where you will install a blank panel, cover the blank panel on the slot, and then fasten the
captive screws by turning them clockwise with a Philips screwdriver.
Figure 7-16
Install a blank panel in an LPU slot