Man, I thought the day would never come: Today I picked up my FDS MCDU at the post office. This is such a beauty.

Being all eager to get it hooked up, I am a little confused as to how to connect everything. The instructions that came with it tell me how to connect wires between the actual MCDU and the interface board. What I don't get is what the S-Video and RCA is for (I am assuming they can be used as alternatives to each other). Is the S-Video/RCA meant as input to the MCDU such that I will need a graphics card that has S-Video/RCA out?