Change from 3 wire to 4 wire dryer cord on bosch...

terminal block has two terminals labeled "L" and one labeled "N" and the previous three cord had the middle wire going to what seems to be a ground.
I have a green wire and a red wire going to each of the "L", a white wire going to the "N" and a black wire going to the ground. It seems weird that no wire from the dryer goes the the "N". I am afraid to plug it in to try. Can you help?