I am trying to connect a pc to my LB-15. I assumed that a standard parallel printer cable hooked up to the serial connection and the pc would work, but when I did it it overloaded something in the control and shut it down. It didnt tear anything up, but I still need to connect my computer to it. I have seen a picture that has a second cable in line before it reaches the computer and I feel like there is magic in the intermediate cable. I am attaching a copy of the picture. Please help me understand the connection. Thanks.