Replace A Dc Power Supply - PaloAlto Networks PA-7050 Hardware Reference Manual

Replace an AC or DC Power Supply

Replace a DC Power Supply

Before servicing the hardware, read the information in "Cautions and Warnings" on page 43.
The PA-7050 can be configured with four serviceable hot-swappable DC power supplies located on the
front of the chassis. To locate the failed power supply, view the system logs or check the LEDs located
on each power supply. A red LED indicates a failure.
You must have at least two power supplies functional for the chassis to remain operational. During
normal operation, all four power supplies should be installed and powered on.
To replace a failed DC Power Supply:
1. Power off the DC power source that is connected to the failed DC power supply.
2. Remove the DC power cable from the failed DC power supply by squeezing the two clips on each
side of the plastic connector inward and then pull the connector away from the power supply as
shown in Figure 23.
3. Loosen the power supply thumb screw located at the top left of the power supply.
4. Pull the power supply lever from the top center of the power supply toward you to disengage it
from the chassis and then slide the power supply out of the chassis using the power supply handle
as shown in Figure 23.
Figure 23. Removing a DC Power Supply from a PA-7050 Firewall
5. Before installing the new power supply, pull the handle out to the open position. When the handle
is halfway open, you will notice two small tabs on each end that will fit into two notches in the
48 • Maintaining the Hardware
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