Step 1
Remove the power supply that you are replacing or a blank panel from an empty bay:
a) Perform one of the following actions:
• If your server has only one power supply, shut down and remove power from the server as described in
Shutting
Down and Removing Power From the Cisco CMX 3375 appliance, on page 34
.
• If your server has two power supplies, you do not have to shut down the server.
b) Remove the power cord from the power supply that you are replacing.
c) Grasp the power supply handle while pinching the release lever toward the handle.
d) Pull the power supply out of the bay.
Step 2
Install a new power supply:
a) Grasp the power supply handle and insert the new power supply into the empty bay.
b) Push the power supply into the bay until the release lever locks.
c) Connect the power cord to the new power supply.
d) Only if you shut down the server, press the Power button to boot the server to main power mode.
Figure 13: Replacing AC Power Supplies
Power supply handle
2
Power supply release lever
1
Shutting Down and Removing Power From the Cisco CMX 3375 appliance
The Cisco CMX 3375 appliance can run in either of two power modes:
• Main power mode—Power is supplied to all server components and any operating system on your drives
can run.
• Standby power mode—Power is supplied only to the service processor and certain components. It is safe
for the operating system and data to remove power cords from the server in this mode.
After a Cisco CMX 3375 appliance is shut down to standby power, electric current is still present in the server.
To completely remove power as directed in some service procedures, you must disconnect all power cords
from all power supplies in the Cisco CMX 3375 appliance.
Caution
You can shut down the Cisco CMX 3375 appliance by using the front-panel power button or the software
management interfaces.
Cisco 3375 Appliance for Cisco Connected Mobile Experiences Installation Guide
34
Maintaining the Cisco 3375 Appliance for Cisco Connected Mobile Experiences
Shutting Down and Removing Power From the Cisco CMX 3375 appliance
