Has anyone use the AG5100 to build a PoE voltage converter?

I am interested in simplifying cabling for a residential canopy.  The PoE is not really PoE, it uses the wall wart and hardwires the power pass through in the midspan box.  I am thinking I could use the AG5100 (Silvertel) which is 802.3at compliant from the PSE, and provides a 12vdc or 24vdc output upto 30w.  Then, at the home/power location, I would put a standard PoE, in the midspan I would use a PoE passthrough, followed by the AG5100, and then on to the canopy.  If this works, I could use standard PoE PSEs and Extenders to the last leg for maximized distance.

 Has this been tried by anyone?