LP Agent

New to this so sorry if im not making much sense. In the picture below is one of my stores old outside PTZs (i believe its checkpoint). It has been sitting in storage and we want to try and hook it up inside now but we are confused on the wires. We know the black is the coax but we are confused on what all the other colors are for? we are use to having three wires total on the PTZS not four. If you have any clue plz let us know.