Morgs2u

Hi Guys I am new to this forum and would appreciate any help. I have 4 old camera's model 842sp with just a black cable at the end of the camera. I need to connect this cable to a rg59 cable with power as well.. How do I connect this camera to a rg59 cable up and its not RG59 cable on the end of the camera .Its just a black cable with thin smaill wiresin it.(white black and red) All new cameras come out already ith power and video.... Thanks Morgs