I was wandering through the exhibit hall when I cam across this. You're looking at is a vending machine for library books. It's made by an Ontario based library services company called Brodart.
The machine is self contained, and comes with a barcode scanner, receipt printer, and a second barcode scanner inside (for stockng new content). This unit can be placed away from library facilities and still be integrated into the system, so I'm going to assume it either has a phone plug in back or it has its own cell connection.