Replace A Pa-7080 Dc Pem - PaloAlto Networks PA-7000 Series Hardware Reference Manual

door, it pulls the power supply inward and seats it into place.
8. Plug the power cable into the corresponding AC power module on the back of the chassis and turn
on the power switch.

Replace a PA-7080 DC PEM

The DC Power Entry Module (PEM) is located on the back of the chassis and connects the power
source to the power supplies located on the front of the chassis, which then distributes power to all
chassis components.
WARNING: The PEMs are not hot swappable. You must power off the chassis,
turn off the DC power feed, and remove the DC power cables from the failed PEM
before proceeding. The PEMs on the AC platform are not field serviceable.
1. Read "Cautions and Warnings Related to Working with the Hardware" on page 89.
2. Put the provided ESD wrist strap on your wrist ensuring that the metal contact is touching your
skin. Then attach (snap) one end of the ground cable to the wrist strap and remove the alligator clip
from the banana clip on the other end of the ESD grounding cable. Plug the banana clip end into
one of the ESD ports located on the front of the chassis before handling ESD sensitive hardware.
For details on the ESD port location, see "PA-7050 Front Panel (AC)" on page 6 or "PA-7080
Front Panel (AC)" on page 13.
3. Power off the chassis and disconnect the power source to the chassis.
4. Remove the stud nuts and star washers from the DC studs that secure the DC cables to the PEM
and then remove the cables.
5. Remove the eight screws that secure the PEM to the chassis as shown in Figure 57.
Palo Alto Networks
Replace a PA-7080 DC PEM
Service the PA-7000 Series Hardware • 103