Cisco Catalyst 9500 Series Hardware Installation Manual page 49

Installing a Switch
Figure 17: Bend and Cut the Extension Rail to the Required Length
Step 3
a) If the switch ports are located in the cold aisle (front-to-back air flow), use the Phillips machine screws
to attach the brackets and the extension rail to the switch.
Figure 18: Attaching the Extension Rail
Use six screws to attach the extension rail on to one side of the switch.
b) If the switch ports are located away from the cold aisle (back-to-front air flow):
1. First disassemble the RFID as shown.
Cisco Catalyst 9500X Series Switches Hardware Installation Guide
Attaching the Rack-Mount Brackets
41