Sorry to add to the confusion, but as of AOS 6.1.x and higher, RAP-2WG as campus AP is deprecated - the following log message will be seen:
Aug 7 12:06:23 stm[1567]: <305043> <WARN> |stm| AP rap2 (type RAP-2WG) can only be used as a remote AP.
showing unlicensed+inactive in the AP database
(sg-3200) #show ap da
AP Database
-----------
Name Group AP Type IP Address Status Flags Switch IP
---- ----- ------- ---------- ------ ----- ---------
rap2 lab RAP-2WG 192.168.1.10 Up 3m:27s IL 192.168.1.155
from what I understand, there was a plan to allow it, then it was revoked by R&D. At the end of the day, RAP-2 cannot function as campus these days.
regards
-jeff