Dell PowerEdge 2400 Installing Redundant Power Supplies - Page 8

4. Rotate the power supply handle to the closed position (see Figure 1-3). For better leverage, press against the upper corners of the handle. NOTE: The power supply will not function until the handle is closed. 5. Repeat steps 1 through 4 to install the second power supply. 6. Connect the AC power cable to the power supplies and to the electrical outlet. 7. Make sure that the AC power cable passes through the plastic strain-relief clip on the system back panel. 1-6 Dell PowerEdge 2400 Systems - Installing Redundant Power Supplies