Installation guide

Removing an Extreme Networks 2400 W AC PSU
BlackDiamond 20808 Switch Hardware Installation Guide
63
Removing an Extreme Networks 2400 W AC PSU
CAUTION
The AC PSU may be hot to the touch; use thermal protective gloves when handling the PSU during removal.
To remove an Extreme Networks 2400 W AC PSU:
1 Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to the ground
receptacle on the top right corner of the switch front panel.
2 Disconnect the AC power cord from the wall outlet.
3 Disconnect the AC power cord from the AC input on the PSU in either of the following ways:
● Rotate the wire retainer up out of the way, and then disconnect the cord.
● Loosen the middle screw of the power cord bracket to allow removal of the power cord. Then
disconnect the cord.
4 At each side, completely loosen the captive retaining screws and remove the power supply retainers
from the chassis.
5 Push the spring-loaded catch on each latch, and rotate the latches away from the front of the PSU to
disconnect the unit from the chassis.
6 Use the handle to slide the PSU out of the chassis (Figure 30).
Be sure to support both sides of the PSU as you remove it from the chassis.
Figure 30: Removing a 2400 W AC PSU
7 If you are not installing a replacement PSU, install a PSU blank cover over the unoccupied slot. (S
“Installing a PSU Blank Slot Cover” on page 71) All unoccupied chassis slots must be covered at all
times to maintain proper system ventilation and EMI levels.
Leave the ESD strap permanently connected to the switch, so that the strap is always available when
you need to handle ESD-sensitive components.
BD_176