Ever needed to see if a network point is live? Using POE? Then this might be able to help.

All it does is put the 48v from POE through a couple of power resitors to somthing  the LED’s can handle.  I’ve wired this up so it can deal with the proper POE standard and the Cisco standard.

Unfortunatlly it doesn’t seem to work with all Cisco routers but it passed some time making it!