Cisco Firepower 4110 Hardware Installation Manual page 73

Installation, Maintenance, and Upgrade
Warning
Step 1 Install the DC power supply module in the chassis and make note of the bay number so you can connect the wiring to
the correct terminals on the DC power supply module at the rear of the chassis. See
Supply Module, on page 62
Step 2 Verify that the power is off to the DC circuit on the power supply module that you are installing.
Step 3
Make sure that all site power and grounding requirements have been met.
Step 4 To remove the plastic cover from the terminal block, insert a flat screw driver on the side of the plastic cover and pry
it off.
Figure 46: Remove the Plastic Cover
Step 5 To prevent any contact with metal lead on the ground wire and the plastic cover, you must wrap the positive and negative
lead cables with sleeving. Insulate the lug with shrink sleeving for each lead wire if using noninsulated crimp terminals.
Sleeving is not required for insulated terminals.
Step 6
Remove the two M5 screws.
Statement 1086 Power Terminals, Replace Cover
Hazardous voltage or energy may be present on power terminals. Always replace cover when terminals
are not in service. Be sure uninsulated conductors are not accessible when cover is in place.
for the procedure.
Cisco Firepower 4110, 4120, 4140, and 4150 Hardware Installation Guide
Connect the DC Power Supply Module
Remove and Replace the Power
69