Nexcom EBC 357X-E3930 3.5″ SBC with Intel Atom E3930, Triple Display and -40 to 85 °C Board Rating

An outdoor terminal or roadside enclosure sees frost overnight and heat in the afternoon, and the board inside has to start and run through both. The EBC 357X-E3930 is the Intel Atom E3930 build in the Nexcom EBC 357X series: a 3.5 inch SBC rated from -40 to 85 °C at board level, with the processor on the underside and a single 12 V DC input.

The onboard Intel Atom E3930 is an Apollo Lake processor, which suits HMI, data logging and thin-client software in compact enclosures. Two DDR3L SO-DIMM sockets take up to 8 GB. HDMI runs at up to 3840 x 2160 at 30 Hz and VGA at up to 1920 x 1200, and a single-channel 18/24-bit LVDS interface drives a panel at up to 1366 x 768, with dual channel as an option, so one board can run a built-in screen and two external monitors.

I/O covers two Gigabit Ethernet ports on Intel I210-IT controllers with PXE boot and wake on LAN, two USB 3.0 and four USB 2.0 ports, one RS-232 and one RS-232/422/485 port as standard with two more RS-232 ports as an option, 4-in/4-out GPIO and Realtek ALC888S audio headers. Storage is one SATA port plus an M.2 2242 B key socket with a SIM holder, and a TPM module is optional. The EBC 357X-E3950 carries the Intel Atom E3950, and the EBC 357-E3930L is the -20 to 60 °C version of the same Atom design.

Power is a single 12 V DC input on a 4-pin right-angle connector, with AT or ATX mode set by jumper. The EBC 357X-E3930 operates from -40 to 85 °C at board level with 10 to 90% operating humidity, non-condensing, and 5 to 95% when stored. The board measures 146 x 102 mm and has a 4-pin PWM fan connector for the enclosure design. It meets CE and carries an FCC Class A mark.