How to use Power over Ethernet (PoE) with a GigE camera?
1-Port PoE Splitter, Power Over Ethernet Splitter 12V - FS.com Deutschland
Lindy Passive POE power adapter kit
kwmobile Passive Power Over Ethernet PoE Adapter Kabel Set - Injektor + Splitter Kabel für Netzwerk, IP Telefon und IP Kamera: Amazon.de: Electronics & Photo