Cisco Aironet 1130AG and 1240AG Access Points support 802.3af PoE. Cisco Aironet 1200 and 1230 Access Points are not 802.3af compliant.Cisco recommends that you use Cisco 802.3af-capable PoE switches or power injectors whenever possible. Cisco 802.3af-compatible switches are backward compatible and will power non-802.3af access points.
The additional accesories are given below.
Cisco Aironet Power Injector (AIR-PWRINJ3)
Cisco Aironet Power Injector Media Converter (AIR-PWRINJ-FIB)
The Cisco Aironet Power Injectors use the power supply that ships with Cisco Aironet 1230AG Series access points.