To remove an AC power supply unit (PSU) from a switch, follow
                these steps:
        
        - 
                Disconnect the AC power cord from the wall outlet
                    and from the power input connector on the power supply.
            
- 
                Push the latching tab to the right as you pull
                    outward on the handle to disengage the power supply internal connectors.
                
                    Removing an AC Power Supply 
 
- 
                Carefully slide the power supply the rest of the
                    way out of the switch.