Does anyone have any experience with a Serial-to-Ethernet server/converter that OUTPUTs voltage? I have found this one:

PESV1A - http://www.bb-elec.com/product_family.asp?FamilyId=142&Trail=57&TrailType=Main

Black-Box also sells it as LPD402A.

The unit outputs 5v but you can change that to 9 or 12. The unit would be perfect if it was smaller (needs to be embedded in our unit) and cheaper. Anyone seen anything like that?