Analytical Instrumentation - SAC Viomax CAS51D

I’m looking for some assistance in gaining correct arrangement of the connection pins for the internal plug in a Viomax CAS51D SAC probe.
The supply communication cable has broken free from the plug housing. I’m going through the process of replacing the pins but need to know the correct polarity to ensure correct connection. Cable is a 4 core with colours being green, yellow, pink and Grey. The pink and grey being for the power.
The plug housing has no markings.