Figure 219. Hot-swap power supply filler removal
Step 3.  Slide the new hot-swap power supply into the bay until it snaps into position. 
Figure 220. Hot-swap power supply installation
Step 4.  Connect the power supply unit to a properly grounded electrical outlet.  
•  For AC power supply units:
1.  Connect one end of the power cord to the power connector on the power supply unit.
2.  Connect the other end of the power cord to a properly grounded electrical outlet.
•  For –48V DC power supply units:
1.  Use a slotted screwdriver to loosen the 3 captive screws on the power supply terminal 
block.
2.  Check the polarity label on the power supply unit and each power cord. 
Chapter 4. Hardware replacement procedures 295