The CCTV IP Econo PoE Extender (500111) allows one IP camera (14 Watts) to be connected up to 1600 ft (500 m) via a single 75-ohm coax cable in a point-to-point configuration. The product works in pairs and the power consumption is low enough so that it does not load the PoE source or switch.
The maximum distance depends on the grade of coax cable and the power consumption of the camera.