The EPC-207B is a fanless industrial box PC whose serial ports are grouped onto a single DB37 connector instead of individual DB9 sockets. That one shell carries 4× RS232 and 4× RS485 — eight serial channels in total. It exists for cabinets where the limit is the number of instruments to connect, not the amount of computing power: weighing terminals, analytical meters, barcode stations and legacy controllers that are all serial devices.

Four RS232 and four RS485, all presented on the DB37 connector, so eight channels in total. Because both electrical standards are on the same unit, a cabinet that mixes RS232 instruments with an RS485 multi-drop bus does not need an external converter — the unit covers both directly.

Space and cable management. Eight DB9 sockets plus their strain relief take a lot of panel area and a lot of individual cables; a single DB37 shell takes one cutout and one harness. In a cabinet that is already crowded, that is the difference between a clean installation and a breakout board strapped to the side of the enclosure.

Serial-dense industrial control: weighbridge and weighing terminals, laboratory and process analysers, barcode and label stations, legacy machine controllers being re-panelled, and any cabinet where a mix of RS232 and RS485 instruments has to be concentrated into one computer and then published to the plant network over Ethernet.

The base build is an Intel® Celeron® J6412 at 2.0–2.6 GHz. Three standard factory builds are orderable on the 12th Gen Core platform — i3-1215U, i5-1235U and i7-1255U — with part numbers C10.01.04.001, C10.01.04.002 and C10.01.04.004. The DB37 connector, the port count and the chassis are identical across all three.

8–32GB DDR4L with a 1× mSATA SSD. For a unit whose job is polling instruments and forwarding their readings, the memory ceiling matters more than raw speed: 32GB is enough to hold a long local buffer when the plant network is down.

It is completely fanless — no fan and no filter, so there is no air path drawing workshop dust or oil mist across the boards. Operating temperature is 0–50 ℃ as standard with −40–70 ℃ optional, storage is −10–60 ℃ and humidity is 10%–90% non-condensing.

229.0 (W) × 160.0 (D) × 79 (H) mm and 2.43 KG — the deepest chassis in the family, because eight serial channels and their terminals need the space. It is built from high-strength aluminium alloy and mounts by wall bracket or VESA mount. Power is 12V DC on a 3-pin pluggable terminal block with 9–36V DC optional, and startup is switchable between AT and ATX.

2× Intel I210 Gigabit LAN for the plant network, a Mini PCIe socket for 4G, Wi-Fi/Bluetooth or a function card, one HDMI output, audio and 4× USB. Certifications are CE, FCC and BIS to EN 55032 and EN 55035, with ODM support for custom BIOS, boot-on-LOGO and OEM branding. It runs Windows 10 / 11 and Linux Ubuntu.