Question concerning Gadgeteer Sockets

Can someone point me to information about the sockets? I know the physical connectors are all the same, but some gadgets can only plug into certain sockets. Where can I find information about the socket lettering and signals asoc. with each letter? I have not been able to find that info or I am just not looking in the right places or searching with the right terms.

Thanks,
Brian G.

In the Downloads and Tutorial section, accessed from menu item at top of page.

http://wiki.tinyclr.com/index.php?title=Gadgeteer_Sockets

If you are looking for more than just the pinout of the connectors, you should check out the module builders guide here: http://gadgeteer.codeplex.com/releases/view/72208