It has a USB port. So does that mean JMRI without a LocoBuffer or PR3/4? Swell!
Direct form the manual section 22.0
"Connecting the DCS52 to a Computer. The DCS52 can be connected to a computer using the USB plug on the back. It provides all the same functionality as a PR4 giving you access to Digitrax SoundLoader II and other computer utility programs. It can also be used as an interface for other compatible layout control software."