Quote Originally Posted by eurikain View Post
I think all the inputs are 5V. How would I wire the resistor (I mean, I know it's a simple wiring diagram), but how do you actually wire it. Is there any kind of "terminal resistor" ?
I saw only once a special resistor socket to be inserted in terminal block. And there are terminal blocks with resistors, diodes, electronics fitted inside.

The simple way is to solder the resistor to the wire end. The third method is not recommended unless you solder the input wires together.