OK, now you're either confusing me intentionally, or I got the gist of your message correctly and don't understand your motivation.
You want to plug an Amiga keyboard into a PC? Why?
Maybe he wants to use an original Amiga keyboard while he is running WinUAE, or AmigaForever to get a more Amiga like feel for his emulation.
He can buy a Catweasel card for his PC and use an Amiga keyboard and joysticks, plus read and write Amiga floppy disks (just not boot from them).
There is also the Individual Computers Keyrah that turns an A1200, or A600 keyboard & case into a PC USB keyboard, but he wanted PS2 instead of USB.