jacknr

hello guys thqnk for reading my question so my setup is : -1ptz controller. -2 ptz camera(with rs485) -DVR my question can I connect the ptz controller to the dvr via rj45 cable .even though my 2 ptz camera have only rs485 .like this : ptz controller rj45 DVR 2 ptz camera rs485 DVR I hope my question isn't gonna get me laughed at but it is what it is thank you alll very much.