I was trying to find FANUC and Ricom PTR-230 pinouts today and stumbled on these https://www.mefi.cz/files/dokumentace/trans/simulacectecek/
FWIW, here are the pinouts for Sanyo-Denki 1402 https://www.mefi.cz/files/dokumentace/trans/snimanictecek/ktr48.pdf mentioned in http://www.classiccmp.org/pipermail/cctech/2015-May/005731.html
