PWD and MB, what do the abbreviations on the laptop power button cable mean?

Question

Iron

On the cable that attaches the power button to the motherboard, there are abbreviations PWD and MB at each end. What do they mean? Which end should connect to the motherboard and which end to the button board?

Answer 1

I think it means
PWD - power down (
MB button - main board (mother

Answer 2

Which end should connect to the motherboard and which end to the button board

yes, it doesn’t matter, her goal is to close contacts