Long Distance PoE Networking
PoE is limited to 100 meters (328 feet). To solve this problem, Fastcabling has developed a long-distance PoE solution that is able to transmit both power and data beyond 100 meters without breaking the IEEE802.3 standard. There are common PoE extension, 800 meters of PoE and PoE switching media available.
The Wide Coverage PoE Extension

PoE technology provides great value for installing low voltage IP devices such as IP Camera, Access Point, and VoIP. While PoE transmission is limited to 100 meters (328 feet) based on IEEE802.3 standard, the challenge of expanding the PoE network is to cover a larger area.