CAS ER JR Serial Cable

I’m trying to connect the CAS ER JR scale to the PC and run a preliminary test on PuTTy for communications. It is failing every time. The issue I believe is the serial cable. Can somebody please help with the correct RS232 cable? I’ve tried with the CAS PDII serial cable (which works with my CAS PDII) but I get no result. Does anybody have a pinout diagram?