Mikrotik CRS 112-8p 4S as a wisp switch 

I would not suggest 2000 CPE's on one tower. At that point youd need to go Nokia LTE with a Juniper or Mikrotik 1072 core.

Coming

That will not work. You need to send DC to it. It takes 24 & 48v in. If you try and power it like that it will crash. Your best option is sending 48v up then adding a buck converter to power the 24v side. Cat6 is pointless. Use Fibre to a 10Gsfpp or 2x cat5E. One for upstream one for downstream.

@@thefixitgal Correct, I should have been clear about the way I used the POE. I put the POE injectors on one ends of the Cat6 to inject the power and a POE picker on the other end before it hits the switch. At that point I would place the 48v to 24v converter. This is not a situation that I can add more cable. I'm replacing a PowerBoxPro with the netPower16p for the extra ethernet ports. Really the current 24v PSU would be fine because I will only need to power the switch. The switch will be for at most 10 retail clients using hAPac2 with their own AC power so, no need for POE out on the switch. This is just a power test to see what could be done and what it could power. I have a few locations with the same single Cat6 cable to the power source. Below is the injector device. It works but I haven't checked to see if it's pushing power out the RJ45 connector. Sure hope I didn't damage the switch. shop.poetexas.com/products/gpoe-1-ab?variant=40016575248

Yes it is. Can I trust it? Absolutely not. The failure rate is much too high. They are not a truly reliable product. With so many design flaws I would use them only in installations that are only perfect for them. Otherwise I love tik for core.

Dont use a poe switch unless you need one. Theres literally hundreds to choose from. For your needs it sounds like youd be best with the mikrotik CRS326. It has 24 Gb ports and 2x SFPP ports. Otherwise you just turn off poe on the ports you dont need poe on.

@@thefixitgal Awesome! Thank you. I kinda figured that BUT I didn't want to miss out on cool features. However, PoE is something completely different!

Its both.. at 48v it will run standard poe devices. But its still manual 24/48v in the switch. It is in fact passive poe.

You are correct!!