Cisco Firepower 2100 Series Hardware Installation Manual page 76

Connect the DC Power Supply Module
Do not strip more than the recommended length of wire because doing so could leave the wire exposed from
Note
the terminal block.
Figure 51: Stripped DC Input Source Wire
Step 4 Insert the exposed wire into the terminal block. Ensure that you cannot see any wire lead outside the plastic cover. Only
wires with insulation should extend from the terminal block.
Step 5 Use a screwdriver to tighten the terminal block captive screws.
Do not overtorque the terminal block captive screws. Make sure that the connection is snug, but the wire is not
Caution
crushed. Verify by tugging lightly on each wire to make sure that they do not move.
Cisco Firepower 2100 Series Hardware Installation Guide
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Maintenance and Upgrade