Wiring proximity induction probe (no replies)

Hello everybody!

I've been creating my printer for like a month and time has come to wire it. The only problem I have is connecting induction probe...
I have done this

and that's how it looks like:


Now I have no idea where should I wire it to my ramps 1.4 :(
The model is LJ12A3-4-Z/BX NPN DC 6-36 V NO

Big thanks to anyone who will help!

PS: I have really little knowledge about pin nomenclature, so actually visual pointing finger at schematics would be the best possibility 8-)