Help needed --Pixcel St237A telescope cable

Hi

Does anyone have a schematic of the RJ11 to Rj11 cable pin connections to allow the telescope port on the pixcel st237A cpu box toconnect to LX200 classic ccd port ??

You're taking about the autoguide cable? AFAIK, nothing has changed with this cable; it's the same now as it was when the 237 was bein' sold. You can buy one or make one easily. If you want to make, take a look at the SBIG manuals...those for any of the cameras will be applicable cable-wise, and will give construction details.