Johnson Controls EASYIO-FS-20 : 20-Point EasyIO IP Controller, Network-Ready, Programmable, 24 VAC/DC, 12UI/2DO/6UO, BACnet MSTP Client/Server, BACnet IP, Client/Server, Modbus RTU Master/Slave, Modbus TCP Master/Slave, MQTT, SMTP, TCOM, Web Services, HTML5, SOX, P2P, One Ethernet And Two RS-485 Ports