Here's some diagrams :-
http://www.satelliteguys.us/xen/posts/3307180/
If you don't care about sharing between all the Hoppers, you can leave out the jumper between the nodes.
http://www.satelliteguys.us/xen/posts/3307180/
If you don't care about sharing between all the Hoppers, you can leave out the jumper between the nodes.