Diamond Systems ARIES : ARS3845-4GN PC/104-Plus SBC with Intel Atom E3845, Digital I/O and -40 to 85 °C

Plenty of embedded systems need a capable processor, networking and some digital lines, but no analog front end. The ARS3845-4GN is the digital I/O build in the Diamond Systems ARIES series: a PC/104-Plus SBC with an Intel Atom processor and soldered memory on a single rugged board, without the analog circuit fitted to the A model.

The Intel Atom E3845 is a quad-core Bay Trail processor at 1.91 GHz, paired with 4 GB of DDR3 SDRAM soldered on board, which removes the SO-DIMM socket as a failure point under vibration. Two independent displays run from VGA, dual-channel 24-bit LVDS and either HDMI or DisplayPort, one at a time. VGA, LVDS and DisplayPort reach 2560 x 1600 and HDMI reaches 1920 x 1080, with backlight power and control on the board for an LCD panel.

I/O covers two Gigabit Ethernet ports on Intel I210IT controllers, four RS-232/422/485 ports with software-selectable protocol and termination, three USB 2.0 ports, one USB 3.0 port, HD audio on an ALC892 codec and a SATA port that also takes a board-mounted SATA DOM. A watchdog timer is programmable from 0 to 255 seconds. The ARS3845-4GA adds 16-bit analog inputs and outputs to the same board.

Power is +5 V DC, with a typical draw of 8.5 W. The ARS3845-4GN operates from -40 to 85 °C without a fan, cooled by a bottom-mounted heat spreader that conducts heat into the enclosure wall, and a 0.5 inch heat sink accessory is available where the board cannot touch the enclosure. It is MIL-STD-202G shock and vibration compatible and supports Linux, Windows 7, Windows 10 and QNX Neutrino 7.0.