PoE Camera stands for Power over the Ethernet Camera

PoE camera is simply an Internet Protocol Camera (Network Camera) that has power supply provided over the network cable.
Power over Ethernet (PoE) is a new technology that allows network devices to be powered via the cat5 cable (and its better versions).
PoE has multiple standards and can provide from 15W to 100W per device on a distance of up to 100m.

Sometimes people ask what is the difference between IP, Network and PoE Camera, this short video explains that:

PoE Power IP Camera CCTV configuration and installation is explained in detail in IP Camera & Systems Installation Course