BACnet Device Profile BACnet Building Controller (B-BC) Device Addressing Software addressed Connectors Removable screw-type terminal connectors Wiring Class Class 2 / SELV Power 24 VDC, 100 W max Power Out 1 24 VDC switched power output Short circuit protected Overcurrent protected 2 24 VDC unswitched power outputs Technology Arm® Cortex®-A8 32-bit 600 MHz RISC CPU 256 MB DDR3L RAM 4 GB eMMC flash memory Real-time clock Supercapacitor power backup for RTC and CPU Communication Ports 2 Ethernet (10/100-Base T) BACnet/IP, BACnet over Ethernet 3 RS-485 ports supporting: BACnet MS/TP up to 76800 bps max 16 devices per O3-DIN-CPU Delta LINKnet up to 76800 bps max 8 eZNS devices per O3-DIN-CPU Modbus RTU up to 115200 bps max 16 devices per O3-DIN-CPU 1 O3BUS port (CAN-based) 2 USB 2.0 ports Ambient Rating –30°C to 55°C (–22°F to 131°F) 10% to 95% RH (non-condensing) Dimensions 108 × 111 × 58 mm (4.25 × 4.37 × 2.28 in.) Weight 193 g (0.425 lb) Enclosure Protection Rating IP20 Compliance CE FCC EAC Listings UL 916 Listed