S8901-54XC Hardware Installation Guide | 14
7
Installing Power Supply Units
The power supply unit (PSU) is a hot swappable field replaceable unit (FRU) and can be replaced
while the switch is operating as long as the remaining (second) PSU is installed and in operation.
The PSUs comes pre-installed and the following are instructions on how to install a new PSU. The
process for removing and installing the PSUs are the same for all models.
DC:
AC:
Figure 19.
Shock hazard!
For safety, please disconnect all power inputs from the power supply unit before
servicing the switch.
1.
Locate the release tab on the PSU. Then press and hold down the release tab to unlock the PSU
from the power bay.
2.
While holding down the release tab, grip the PSU's handle and firmly pull it out of the power
bay.
DC Version:
AC Version:
Figure 20.
3.
Align the new PSU with the power bay, ensuring the PSU’s power connector is in the correct
position.
