Since the hEX POE doesn't have any WiFi capability, I was going to use a spare SXTsq Lite2 to bridge the cameras.
Unfortunately SXTsq Lite2 requires passive 24v PoE only.
It seems there is no way to have some ports in 802.3af/at and others in 24v Passive. The hEX lacks the DC-DC converters needed to do so.
I have tried hAP AC, and even if it can take 57V as power input, it cannot take it via passive.
I wish I know this before I bought hEX POE.
Now I am stuck with pile of Mikrotik gear that can't even work with itself.
Even worse, I am boosting 12V (from solar LiFEPO4 setup) to 48V just to get 48V out.
This all seems to be waste of money and time, as I might reconsider the whole setup due to deficiencies of the hEX PoE.
I could have just used spare hAP AC and just inject (or direct wire 12v) the power to cameras.
It is a massive step backwards.
https://mikrotik.com/product/RB960PGS
I should have paid more attention to this.The ports 2-5 can power other PoE capable devices with the same voltage as applied to the unit.
I had similar issue with RB4011 and a disc lite (unable to use 48V).
The bizarre part is that there is a DC-DC converter in hAP AC for the power input via jack, which has wide voltage input, yet even hAP AC can't take passive in with 48V.