1980's Fanuc tape reader PECs are fitted with two families of connector I am unfamiliar with : one is used for power and the other for signal connections -further detail and pictures in the following VCF post
No joy on Burndy website or at BitSavers - wisdom gratefully received https://forum.vcfed.org/index.php?threads/fanuc-pec-connectors-who-is-the-oem-what-family-are-they-from-and-where-can-i-obtain-pdfs.1251371/ Martin
