The Cisco Aironet 3500i Access Point is now obsolete (past End-of-Life and End-of-Support status).
End-of-Sale Date: 2016-04-01
End-of-Support Date: 2021-03-31
Cisco's End-of-Life Policy
For a replacement, we recommend the Welcome to Cisco
You can view a listing of available Access Points offerings that best meet your specific needs
If you want support information for the Cisco Aironet 3500i Access Point documentation, it may be available through Cisco.com Search or in the Cisco Community