Have both hAP ax^2 and hAP ac^2. Canthey be configured using the same capsman server?
Yes ... if those hAP ac2 are running ROS v7 and have installed wifi-qcom-ac driver package (instead of wireless).
Beware that 16MB storage (used in hAP ac2) is very tight when installed ROS v7 with wifi-qcom-ac ... without much further config (and without other optional packages installed) it works fine, but keep an eye on free storage (there were certain ROS versions where installation size was too big, storage was exhausted and all sorts of random problems started to appear).
Adding:
when using VLAN in your network, setup for AC2 is quite a bit different since you can not pass VLAN info via datapath settings as for AX devices.
(there are quite a bit of things you need to take into account).
Once setup correctly, all AX and wifi-qcom-AC devices work together nicely under the same capsman controller.
See Help pages for details.