Is the 'Network wide tracking code' the same as ua- code for main site?

I have put the UA- code for my ProSites domain in the 'Network wide tracking code' section. When I switch over to that ProSite what do I put as the UA- code in the Google Analytics settings for that site? Do I somehow create a second tracking code or is it something else entirely?

I would like to get the global analytics for my network as well as site analytics for my pro site.