Extreme Networks ExtremeSwitching X440-G2 Series Hardware Installation Manual page 213

Figure 162: Removing a Blank Panel (750 W Power Supply Unit)
2 Verify that the power supply is right side up.
3 Verify that the power supply's airflow direction (front-to-back or back-to-front) is compatible with
the switch.
4 Carefully slide the power supply all the way into the power supply bay (see the following figures).
Figure 163: Installing a 300 W AC Power Supply
ExtremeSwitching and Summit Switches: Hardware Installation Guide
Installing Your Extreme Networks Switch
213