If i understood u right... You want to assign an static IP to your AP-93... Your may do it in the AP installation page.
*Be sure to have the right IP info (subnet+GW+DNS)
*Be sure that the address your assigning to your AP is free and excluded from the DHCP server itself.
How to assign Static ip to an AP (GUI METHOD .. there is also a CLI method and a CONSOLE CABLE method)
Configuration>AP installation>choose your AP > provisioning > set a static IP + other needed settings and Walla.
Hope i understodo u right.
have a lovley night.
me