The Alerton® BACtalk® VLC-660 is a versatile, fully programmable BACnet-compliant field controller. With three software-controlled high-current relays, the VLC-660R is well suited for unit ventilator and fan-coil applications, or any application that requires multi-speed fan or motor control. As a native BACnet controller, it integrates seamlessly with your BACnet system, communicating on a BACnet MS/TP LAN at up to 76.8 Kbps. VLC-660R—Six universal 10-bit inputs, three binary triac outputs, and three binary high-current relay outputs.