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BC51M - Rugged Industrial Box PC with Intel Apollo Lake-I

Railway & Automotive Embedded Computer for Communication & Control

Industrial vehicle mount computer for in-train and onboard applications

  • BC51M Product ImageBC51M Rugged Industrial Box PC with Intel Apollo Lake-I
  • BC51M Product ImageBC51M Rugged Industrial Box PC with Intel Apollo Lake-I
  • BC51M Product ImageBC51M Rugged Industrial Box PC with Intel Apollo Lake-I
  • BC51M Product Image
  • BC51M Product Image
  • BC51M Product Image

Main Features

  • Intel Atom E3900 series
  • Up to 8 GB DDR3 DRAM soldered, ECC
  • 32 GB eMMC soldered
  • 2 DisplayPorts, up to 4096 x 2160 pixels each
  • 2 Gigabit Ethernet, 1 USB 2.0
  • WLAN, 4G LTE, GNSS via 2 PCI Express Mini Card slots
  • 2 Slots for IBIS, GPS, RS232, RS485, RS422
  • -40 °C to +70 °C (+85 °C), fanless
  • Compliant to EN 50155 (railways) and ISO 7637-2 (E-mark for automotive)
BC51M Product Image

Technical Data

The following CPU types are supported:
  • Intel Atom x5-E3930, dual core, 1.3 GHz, 6.5 W
  • Intel Atom x7-E3950, quad core, 1.6 GHz, 12 W
System RAM
  • Soldered DDR3
  • 8 GB max.
TPM (Trusted Platform Module 2.0)
Mass Storage
  • The following mass storage devices can be assembled:
    • SSD/HDD 2.5" (SATA)
    • SD card
  • The following mass storage devices are assembled:
    • eMMC (soldered); 32 GB
  • Processor graphics
  • Maximum resolution: 4096x2160 pixels @ 60 Hz, 24 bpp (DisplayPort 1.2a)
Wireless Functionality
Possible wireless functions:
  • GNSS
  • LTE
  • WLAN
  • Video
    • 2x DisplayPort
  • HD Audio
    • 1x, D-Sub, 9-pin, plug
    • Stereo line input, single-ended
    • Stereo line output, differential
    • S/PDIF output
  • USB
    • 1x USB 2.0, Type A
  • Ethernet
    • 2x 1000BASE-T, M12, X-coded, receptacle
  • PCI Express Mini Card
    • 2x PCI Express Mini Card slot
    • Slot A: PCIe Full-Mini; PCIe x1, USB 2.0
    • Slot B: PCIe Full-Mini; PCIe x1, USB 2.0
  • SIM card
    • 2x micro-SIM card slot, internally accessible
  • Power input
    • 1x power inlet connector
    • Ignition input
  • LED
    • Status: board status, power status
    • Ethernet: link, activity
    • User configurable: 2x
  • Cutout
    • Antenna connector: RP-SMA receptacle, RP-SMA plug, QMA receptacle, QMA plug, FME receptacle, FME plug
    • D-Sub options: RS232, RS422/484, CAN, digital I/O, IBIS slave, GNSS, MVB
Supervision and Control
  • Board management controller
  • Watchdog timer
  • Temperature measurement
  • Real-time clock, buffered by supercapacitor (3 days)
Electrical Specifications
  • Supply voltage
    • 24 V DC to 36 V DC nom. (EN 50155)
    • 110 V DC nom. (EN 50155)
    • 24 V DC nom. (ISO 7637-2)
    • EN 50155 power interruption class S2
  • Isolation voltage 1500 VDC
    • Ethernet port 1, Ethernet port 2, power input, system ground (USB, Display Port, Audio...)
Mechanical Specifications
  • Dimensions: (W) 240 mm, (D) 220 mm, (H) 44.1 mm
  • Weight: 1.8 kg
  • Cooling
    • Air cooling, natural convection, airflow 0.4 m/s
  • Protection rating
    • IP20
    • Other IP protection classes possible on request
Product Compliance: Rail - Rolling Stock
  • Operating temperature: -40 °C to +70 °C, +85 °C for 10 min (EN 50155:2017, class OT4, ST1)
  • Storage temperature: -40 °C (EN 50155:2017) to +85 °C (EN 60068-2-2, Bb)
  • Altitude: up to 1400 m above sea level (EN 50125-1:2014, class A1 standard)
  • Humidity: +55 °C and +25 °C, 100 % max. (EN 50155:2017)
  • Shock: 30 ms @ 50 m/s² (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B)
  • Vibration: 10 min @ 2.02 m/s² and 5 h @ 11.44 m/s² (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B x 2)
  • Power supply
    • General compliance with power supply requirements of EN 50155:2017
    • Interruption of voltage supply: 10 ms (EN 50155:2017, class S2)
  • Electrical Safety
    • EN 50155:2017
    • EN 50153:2014 + A1:2017
    • EN 50124-1:2017
    • EN ISO 13732-1:2008
  • Fire protection: EN 45545-2:2013 + A1:2015, HL3
  • EMC emission:
    • EN 50121-3-2:2016
    • Regelung Nr. EMV 06 :2014-07-29, Anhang E: Messung an Geräten
  • EMC immunity: EN 50121-3-2:2016
Product Compliance: Road Vehicle
  • EMC Emission: ECE R10 Rev.5
  • EMC Immunity: ECE R10 Rev.5
  • Flammability (PCBs)
    • ECE-R118
AMI Aptio UEFI Firmware
Software Support
  • Windows
    • Windows 10 IoT Enterprise
  • Linux
  • For more information on supported operating system versions and drivers see Software.

Ordering Information

Standard BC51M Models

Intel Atom x7-E3950, 1.6 GHz, 8 GB DDR3 DRAM, ECC, 32 GB eMMC, 24 VDC and 36 VDC nom. (10 V to 50.4 VDC) class S2 PSU with ignition, -40 °C to +85 °C, conformal coating, compliant to EN 50155, compliant to ISO 7637-2 (E-mark for automotive)


Intel Atom x7-E3950, 1.6 GHz, 8 GB DDR3 DRAM, ECC, 32 GB eMMC, 110 VDC nom. class S2 PSU with ignition, -40 °C to +85 °C, conformal coating, compliant to EN 50155

Miscellaneous Accessories

Starter Kit for Box PC:

  • 1x AC/DC power supply
  • 2x DisplayPort to DVI adapter (active)
  • 2x M12 to RJ45 Gbit Ethernet cable, X-coded
  • 4x HF cable with U.FL plug to RP-SMA plug
  • USB Flash drive with example image
SA1 - RS232 Interface Adapter

RS232, not optically isolated, -40°C to +85°C screened, conformal coating

SA2 - RS422/RS485 Interface Adapter

RS422/485, full duplex, optically isolated, -50°C to +85°C screened, conformal coating

SA3 - RS232 Interface Adapter

RS232, optically isolated, -40°C to +85°C screened, conformal coating

SA8 - CAN Bus ISO High-Speed Interface Adapter

CAN bus ISO high-speed, optically isolated, -40..+85° screened, conformal coating

SA15 - 8-Channel Binary I/O Adapter

8 digital I/O channels, -50..+85°C with qualified components, conformal coating, no RoHS

SA24M - IBIS Master

IBIS master interface, conformal coating, -40°C to +85°C (screened)

Mass Storage

SSD SATA, 2.5", 1 TB, MLC, -40 °C to +85 °C


SD card, 4 GB, -40°C to +85°C

PCI Express Mini Cards

DHXA-222, WLAN, Bluetooth, PCI Express MiniCard, Half-Mini with mechanical adaption to Full-Mini format, -40 °C to +85 °C

PX1N - GLONASS & GPS Interface

GLONASS & GPS PCI Express MiniCard, Dead Reckoning, -40 to +85°C


MVB ESD+ Device, Process Data, -40 to +85°C with qualified components, conformal coating

PX4 - Mobile Phone Voice Interface

PCI Express Mini Card, mobile wireless functions, audio interface, Mini-SIM card holder, -40°C to +85°C

PX6 - Security Smart Card Reader

PX6, Security Smart Card Reader, 2FF Card holder, PCI Express Mini Card connector pass through, -40..+85°C

PX7 - PCIe Mini Card to M.2 Adapter

PCI Express Mini Card for converting PCI Express Mini to M.2 and PCI Express x1 to USB3.0, USB 3.0 extension for Box PCs, -40 to +85, conformal coated


Quectel, EC25-E, LTE cat 4, PCIe MiniCard, USB 2.0, GNSS, EU version, -40 °C to +80 °C


Sierra Wireless EM7455, M.2 LTE Advanced Cat 6 modem, -40 °C to +85 °C, SKU1103582


Telit LE910-EU V2, LTE cat 4, PCIe MiniCard, USB 2.0, (no GNSS), EU version, -40 °C to +85 °C



This product was tested successfully initially with kernel 4.8.x. Meanwhile helpful patches for the Apollo Lake platform have been integrated into older kernel (e.g. 4.4.157) versions as well. See kernel log files for details.


The MDIS5 system package includes most standard device drivers for Linux available from MEN.


Linux driver (MEN) for RX8581/RX-8574 real-time clock for all products with an additional RTC component. Please note that this driver is already included in upstream Linux kernels starting from 3.14!


Linux tool (MEN) for UART mode setting for MEN box PCs


Windows ERTC/SMB support package

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