Extreme Networks Summit X150 Series Hardware Installation Manual page 204

Maintenance Procedures for Summit X650 and Summit X480 Series Switches
Figure 171: Removing an AC PSU
4 Carefully slide the PSU the rest of the way out of the switch.
CAUTION
Power supplies may become very hot during operation. Wear thermal protective gloves when you remove a power
supply from an operating switch.
NOTE
If you are not installing a replacement PSU, install a cover over the unoccupied power supply bay. Unoccupied bays
must always be covered to maintain proper system ventilation and EMI levels.
5 Verify that the replacement PSU is right side up, with the latching tab at the right of the unit
(see Figure
6 Carefully slide the PSU all the way into the power supply bay (see
the latch snaps into place.
Figure 172: Installing an AC PSU
CAUTION
Do not slam the PSU into the switch.
7 Connect the power cord to the PSU and to a grounded AC power outlet.
WARNING!
Always be sure that the source outlet is properly grounded before plugging the AC power cord into the AC PSU.
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172).
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Summit Family Switches Hardware Installation Guide
Figure 172). Push the PSU in until