The distance that a PoE camera can be ran is dependent on the quality of ethernet cable used.  The included cables for the PoE kit are 60ft long.  Please follow the recommendations below if you need to run them further.  

CAT5 cable can be used to run the PoE camera up to 200ft.

CAT6 cable can be used to run the PoE camera up to 300ft.  

At this time, there is no solution to run the cameras further than 300ft.