The following is a bunch of screenshots taken on my iPhone to show the sequence of events of “connecting” a Mac to a Server 2012 Essentials server.
Apologies for crap photo quality.
This is from the “Connect” landing page and the system knows this is a Mac so you click to download the software.
DMG file, run it to install.
This is the “Launchpad” that auto-opened after the install.
This is interesting, you can integrate Time Machine backups with the Server 2012 Essentials Client Backups:
This is the Remote Server Access