Connector pinout

[Buzz 0]

Does anyone have the pin-outs for the 26 pin front programmer socket and the 10 pin I/O expansion socket on the side of the Series 1 JR? TNX Gary

[Buzz 0]

Well I guess the reasons are there is no replies are: 1. No one knows. 2. "It's proprietary". 3. I didn't explain my question properly. Well anyway here's what I got by tracing the foils (see attachment). The data lines are buffered through a bidirectional driver and there are no address lines i can find. IOPLUG.bmp