Extreme Networks Summit4 Hardware Installation Manual page 46

Installation and Setup
EW_rack
Figure 2-2: Fitting the mounting bracket
6 Repeat steps 3 - 5 for the other side of the switch.
7 Insert the switch into the 19 inch rack. If you are installing a Summit7i switch, place
it on the helper bracket. Ensure that ventilation holes are not obstructed.
8 Secure the switch with suitable screws (not provided).
2-4 Summit Switch Hardware Installation Guide