Demo video
Watch the procedure on YouTube
Power supply unit replacement
Follow instructions in this section to install or remove power supply units.
Remove a hot-swap power supply unit
Follow instructions in this section to remove a hot-swap power supply unit.
About this task
S002 
CAUTION: 
The power-control button on the device and the power switch on the power supply do not turn off the 
electrical current supplied to the device. The device also might have more than one power cord. To 
remove all electrical current from the device, ensure that all power cords are disconnected from the 
power source.
S029 
DANGER
For -48V dc power supply, electrical current from power cords is hazardous.  
To avoid a shock hazard:
•  To connect or disconnect -48V dc power cords when you need to remove/replace install 
redundancy power supply unit(s).
Chapter 4. Hardware replacement procedures 199