DFI ADN253 Intel Alder Lake-N 4" EPIC Single Board Computers with Six COM Ports and 9 to 36 V DC Input

Equipment built around serial devices and a local display often ends up with a board, a USB-to-serial hub, an LVDS converter and a DC-DC module in the same box. The DFI ADN253 series puts those functions on one 165 x 115 mm EPIC-size board: six COM ports, an internal eDP or LVDS panel connector and a 9 to 36 V DC input, on Intel Alder Lake-N processors that suit indoor control, kiosks and HMIs rated from -5 to 80 °C.

Every ADN253 board has LPDDR5-4800 soldered to the board, 8 GB or 16 GB depending on the build, so there is no SO-DIMM to seat or work loose. Intel UHD Graphics with up to 32 execution units drives an HDMI 1.4b output and an internal connector that takes eDP by default or dual-channel LVDS, and DFI lists quad display support. Intel TCC is supported, and the Intel I226 2.5GbE controllers offer TSN as a project option.

Four builds cover the range. ADN253-x7425E pairs the quad-core Intel Atom x7425E with 16 GB for embedded control. ADN253-x7211E is the dual-core Atom x7211E with 8 GB for converters and light HMIs. ADN253-N97 uses the quad-core Intel Processor N97 with 8 GB for kiosks and signage, and ADN253-N305 carries the eight-core Intel Core i3-N305 with 16 GB for gateways and multi-application HMIs. I/O, power and temperature rating are shared, so the choice is cores and memory.

Networking is two 2.5GbE ports on Intel I226 and one GbE port on Intel I210. The six COM ports are two RS-232/422/485 and two RS-232 on DB9, plus two RS-232 on internal headers, and 8-bit DIO can be selected in BIOS in place of COM4. USB is three USB 3.2 Type-A ports and one USB 3.2 Type-C port at the rear, with two USB 2.0 headers inside. An M.2 M-key (2242/2280) takes an SSD, an M.2 E-key (2230) takes Wi-Fi, and an M.2 B-key (3042/3052) with SIM takes a cellular module, with one SATA port alongside.

Power is 9 to 36 V DC on a barrel connector or 4-pin header. The ADN253 series operates from -5 to 80 °C with 0.2 m/s airflow over the supplied heatsink, carries CE and FCC compliance and a TPM 2.0, and supports Windows 11 IoT Enterprise and Ubuntu 22.04.