FEC Series products support selectable BACnet or N2 field bus networking protocols. The FEC family includes multiple models featuring a variety of total number and types of input and output interfaces. FECs feature 32-bit microprocessor architecture, patented continuous tuning adaptive control, and peer-to-peer communications, and they are available with an optional built-in LCD screen local UI. A full range of FEC models combined with IOM or XPM models can apply to a wide variety of mechanical and electrical equipment control applications ranging from simple fan coil or heat pump control to advanced central plant management. The FEC Series controllers support wireless communications using the ZigBee® Field Router (ZFR) Series accessories.