VLC-853 BACtalk

Honeywell Alerton VLC-853 BACtalk® VLC-853 is a versatile, high-performance BACnetcompliant field controller designed for control of central plant systems,
air handling units, large terminal units, and similar control and process
equipment. As a native BACnet controller, the VLC-853 integrates
seamlessly with your BACnet system. It communicates at up to 76.8 Kbps
on a BACnet MS/TP LAN or can operate as a stand-alone controller.