config ap mode se-connect <ap_name>
AP will need to reboot.
Launch Cisco Spectrum Expert on a windows PC (I have not tried to install this on wine yet).Enter the ip address of the AP & the NSI key, which you can find by issuing:
show ap config 802.11b <ap_name>
You will see the NSI key listed under the "CleanAir Management Information".CleanAir Management Information
CleanAir Capable......................... Yes
CleanAir Management Admin State.......... Enabled
CleanAir Management Operation State...... Up
Rapid Update Mode........................ Off
Spectrum Expert connection............... Enabled
CleanAir NSI Key....................... 77E900598B2Cxxxxxxxxx
Spectrum Expert Connections counter.... 0
CleanAir Sensor State.................... Configured