AP

[peteryouhannafawzy]

For the outdoor AP AIR-CAP1552E-C-K9 which controller support .

[Leo Laohoo]

WLC-2504, 5508/5520, WiSM2, 8510/8540, 5760 ... Whatever your budget is.

[Freerk Terpstra]

Now that you mention it, do you know when can we expect the 5520? I only can find some bugs report for them.. :-)

[Leo Laohoo]

5520 & 8540 is now out, as of 01 May 2015 (NY Time).  

Release Notes for Cisco Wireless Controllers and Lightweight Access Points for Cisco Wireless Release 8.1.101.0

Data Sheet:  Cisco 5520 Wireless Controller

Data Sheet:  Cisco 8540 Wireless Controller

[Leo Laohoo]

5520 and 8540 will be announced in the next few days during INTEROP 2015.

Please see above post.