As the size of your Power over Ethernet (PoE) project grows, the price grows along with it. This DIY solution will help you roll out a modest PoE system without breaking the bank.
German computer enthusiast and tinker Fire shares a simple tutorial for hacking an old patch panel into a passive PoE model. The build cost him about $15, which is a downright bargain. It’s important to note that this build is designed to power relatively inexpensive radio modules over Ethernet and not to power extremely expensive scientific equipment or the like–while we like the quick/dirty/cheap aspects of the build it’s missing the circuit protection and other niceties that come with shelling out for a high end PoE module.
You can hit up the link below for more information (if your browser throws up an error message you can safely ignore it, the SSL certificate of the Wiki the project is hosted on is out of date).
How-To Passive PoE [via Hack A Day]