Thank you very much for that information.

I ended up picking up this unit on Amazon https://www.amazon.com/gp/product/B01G7QZ41A/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

I don't get it for a few days yet, but I might try my 802.3af 48w injector this afternoon. I've been scared I would great it!

I see this unit you recommend here on amazon as well https://www.amazon.com/Microsemi-PD-9501G-48VDC-Gigabit-Midspan/dp/B00OT68KF8/ref=sr_1_2?ie=UTF8&qid=1512065388&sr=8-2&keywords=Microsemi+9501

I'm now debating if I should order it as well or try the first unit (:

Thanks again for taking the time to comment