remote printer

I read documentation about CUPS but I still don't really get the hang of it.

I go to localhost:631 in my browser:
To add a printer I must fill in the name, location and description of the
printer. But I'm not sure what these values should be.
I'm a bit confused with the notion of the CUPS server I think. My printer is
connected directly to the router, so how do my CUPS server and router on
one hand and my CUPS client en CUPS server on the other hand communicate
with eachother. I don't mind a bit of reading but I can't distill this
information from the various documentation pages.