Hello,
I can power on my hAP ax² with an switch poe for esample CSS610-8G-2S+IN?
It should be possible, both devices support 24V and passive PoE. Power budget of both devices is fine as well (hAP ax2 max PoE out current is 600mA, CSS610 uses up to 11W, at 24V that’s around 460mA).
The only constraint is that CSS has to be connected with erther1 (labeled as “PoE in”) to ether1 of hAP ax2. You might need to explicitly enable poe-out on hAP ax2 if it doesn’t do it automatically.