The Barix IO 12 is a DIN rail mountable I/O unit for commercial control, signaling, switching, sensing, and counting applications. It provides twelve solid state current sourcing outputs rated at up to 1.5 A each and 6 A total, plus twelve opto isolated inputs for 5 to 30 VDC signals. A two wire RS 485 interface supports Modbus RTU communication. Power requirements are 12 to 24 VAC or 9 to 30 VDC.