Extending ethernet capabilities

Hailed as a watershed innovation when first standardized in 2003, Power over Ethernet (PoE) offers a way of supplying electricity to network devices over standard Ethernet data cables. A convenient and affordable way to power up network devices such as wireless access points and security cameras, PoE eliminates the need for separate electrical power lines to each device. http://futurelab.assaabloy.com/en/extending-ethernet-capabilities/