DFI IRN556-TN-x7211RE Intel Amston Lake Atom x7211RE 3.5″ Embedded Board with 9 to 36 V DC Input and -40 to 85 °C

A remote telemetry unit on a pump station or roadside cabinet usually has one job: read serial instruments, buffer the data and send it home over cellular. It needs ports and a wide temperature rating more than processing. The IRN556-TN-x7211RE is the 6 W Amston Lake option in the IRN556 series, a 3.5″ embedded board with four COM ports, rated from -40 to 85 °C.

The Intel Atom x7211RE is a dual-core Amston Lake processor running from 1.0 to 3.2 GHz within a 6 W TDP. Two cores cover Modbus polling, protocol conversion and a local web interface, and the low TDP leaves thermal margin at 85 °C. One DDR5 4800 MHz SO-DIMM slot takes up to 16 GB. A discrete TPM 2.0 helps protect credentials on unattended sites, and the programmable 1 to 255 s watchdog can reset the board after a software hang.

Two RS-232/422/485 and two RS-232 ports sit on internal headers with 8-bit DIO for alarm and status signals, plus two USB 2.0 ports. The rear carries two GbE ports on Intel I210IT controllers, four USB 3.2 Gen 2 Type-A ports and HDMI, with dual-channel LVDS for a local panel. The M.2 B-key 3052 socket with nano SIM takes a cellular modem, the E-key socket takes Wi-Fi and the M-key 2242 socket a PCIe or SATA SSD.

The IRN556-TN-x7211RE runs fanless on 9 to 36 V DC through a 4-pin connector, with CE, FCC, UKCA and RoHS compliance. For a local HMI on the same rating, the IRN556-TN-x7433RE offers four cores at 9 W. For an indoor cabinet at the same 6 W, the IRN556-BN-N150 doubles the core count to four, rated from -5 to 65 °C.