Mk111 / vm136

I am trying to use this item as a swith to a micro 5v fan.
I cannot get it to work.
The digrams are not complete in explaining what goes where or how things are powered.
I understand where the power goes in, but i do not understand what the NO COM NC connections are for.
Do i need to power the fan by another power supply, how do I get the switching to work ??
Help please.

How do I show a pic or diagram ?


ok forget it. I am trying another forum

Try looking at this link (PDF)