Dell EqualLogic PS4210 Hardware Owner's Manual page 40

PS4210 Hardware Owner's Manual 4 Maintaining Power Supply and Cooling Modules
Figure 28: Inserting a Power Supply and Cooling Module
3. Ensure the power switch is in the OFF position.
4. Connect the power cable to the power supply and cooling module and plug the cable into a power outlet.
The AC LED lights up when the power cable is connected, even if the switches on the power supply are off.
5. Secure the power cable using the hook-and-loop fastener strap, as shown in Figure 29 .
6. Turn on the switch on the power supply and cooling module.
Figure 29: Securing the Power Cables
34