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F26L - Embedded Single Board Computer with Intel Apollo Lake-I

3U CompactPCI PlusIO

The F26L is an extremely low-power x86 PC based embedded computer for industrial automation and railway transportation, featuring the Intel Goldmont architecture with 2- and 4-core E3930, E3940 and E3950 processors. The SBC is compliant with the PICMG 2.30 standard and as such a perfect migration path from CompactPCI to CompactPCI Serial.

  • F26L Product ImageF26L Intel Atom Low-Power CPU Board with Heat Sink
  • F26L Product ImageF26L Intel Atom Low-Power CPU Board
  • F26L Product Image
  • F26L Product Image

Main Features

  • Intel E3900 series CPU with up to four cores
  • Up to 8 GB DDR3 RAM soldered, ECC
  • For CompactPCI 2.0 systems or CompactPCI PlusIO 2.30 hybrid systems (2.0 and CPCI-S.0)
  • CPU TDP 6.5 W to 12 W
  • Front I/O: 2 Gb Ethernet, 2 USB 3.0, 1 VGA
  • Rear I/O: 2 Gb Ethernet, 4 PCIe x1, 4 USB 2.0
  • microSD card and mSATA slots
  • Trusted Platform Module (TPM)
  • Side card connector for high flexibility and interface extensions
  • Up to -40 °C to +85 °C
F26L Product Image

Technical Data

  • The following CPU types are supported:
    • Intel Atom x5-E3930, 2 cores, 2 threads, 1.3 GHz, 1.8 GHz Turbo Boost, 6.5 W, 2 MB cache
    • Intel Atom x5-E3940, 4 cores, 4 threads, 1.6 GHz, 1.8 GHz Turbo Boost, 9.5 W, 2 MB cache
    • Intel Atom x7-E3950, 4 cores, 4 threads, 1.6 GHz, 2.0 GHz Turbo Boost, 12 W, 2 MB cache
  • Intel Virtualization Technology (Intel VT)
    • VT-d
    • VT-x
Trusted Platform Module (TPM 2.0)
  • System RAM
    • Soldered DDR3, ECC support
    • 4 GB or 8 GB
  • Boot Flash
    • 16 MB
Mass Storage
The following mass storage devices can be assembled:
  • microSD card
  • mSATA disk
Front Interfaces
  • This product includes interface options
  • Video
    • One VGA connector
    • The front channel can optionally be led to the backplane
  • USB
    • Two Type A connectors, USB 3.0
  • Ethernet
    • Two RJ45 connectors, 100/1000BASE-T, or
    • Two 4-pin M12 connectors, D-coded, 100BASE-T (8 HP front panel), or
    • Two 8-pin M12 connectors, X-coded, 100/1000BASE-T (8 HP front panel), or
    • Two 8-pin M12 connectors, A-coded, 100/1000BASE-T (8 HP front panel)
    • Four link and activity LEDs (two per channel)
  • Status LED
  • Reset button
Onboard Interfaces
  • An onboard connector allows a side card to be plugged onto the CPU board to add front panel connections or mass storage devices. A range of standard side cards is available to implement the following functions.
  • SATA
    • One channel, SATA Revision 3.x
  • Video
    • One DisplayPort channel
  • Audio
    • One HD Audio channel
  • USB
    • Four channels, USB 2.0
  • PCI Express
    • Two x1 links, PCIe 2.0
Rear Interfaces
  • USB
    • Four channels, USB 2.0
  • Ethernet
    • Two channels, 100/1000BASE-T
  • PCI Express
    • Four x1 links, PCIe 2.0
  • I2C
    • One interface
  • Compatible with PICMG 2.30 CompactPCI PlusIO
    • 1PCI33/4PCIE2.0/0SATA/4USB2/2ETH1G
Supervision and Control
  • Board controller
  • Watchdog timer
  • Temperature measurement
  • Real-time clock with supercapacitor or battery backup
Backplane Standard
  • Compliance with CompactPCI Core Specification PICMG 2.0 R3.0
  • System slot
  • 32-bit/33-MHz CompactPCI bus
  • V(I/O): +3.3 V (+5 V tolerant)
Electrical Specifications
  • Supply voltage
    • +5 V (-3%/+5%)
    • +3.3 V (-3%/+5%)
    • +12 V (-10%/+10%)
    • The board can be supplied with +5V only, all other voltages are generated onboard.
  • Power consumption
    • 22 W max.
Mechanical Specifications
  • Dimensions
    • 3U, 4 HP, or
    • 3U, 8 HP
  • Weight
    • 350 g (model 02F026L00)
Environmental Specifications
  • Temperature range (operation)
    • -40°C to +85°C, compliant with EN 50155, class TX
  • Temperature range (storage): -40°C to +85°C
  • Cooling concept
    • Air-cooled, airflow 1.5 m/s (model 02F026L00), or
    • Natural convection (model 02F026L01)
    • Conduction-cooled in MEN CCA frame
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300 m to +3000 m
  • Shock: EN 50155 (12.2.11) / EN 61373 category 1 class B body mounted
  • Vibration: EN 50155 (12.2.11) / EN 61373 category 1 class B body mounted
MTBF: 365 000 h @ 40°C according to IEC/TR 62380 (RDF 2000)
  • Electrical Safety
    • EN 62368-1 (former EN 60950-1)
  • Flammability (PCBs)
    • UL 94 V-0
  • EN 55022 (radio disturbance)
  • IEC 61000-4-2 (ESD)
  • IEC 61000-4-3 (electromagnetic field immunity)
  • IEC 61000-4-4 (burst)
  • IEC 61000-4-5 (surge)
  • IEC 61000-4-6 (conducted disturbances)
BIOS/Boot Loader
AMI Aptio UEFI Firmware
Software Support
  • Linux
    • Supported kernel: 4.8 or higher. For older kernels (e.g., 4.4.x), patches for the Apollo Lake platform are also available.
    • Yocto BSP
    • Tested with: Yocto BSP (Sumo 2.5, Linux kernel 4.15)
  • Windows
    • Windows 10 IoT Enterprise 64-bit
  • VxWorks
    • BSP on request
  • QNX
    • BSP on request
  • For more information and available packages see Software.

Ordering Information

Standard F26L Models

This product has configuration options. Please contact MEN for details.


3U CompactPCI PlusIO, 4HP, Intel Apollo Lake-I E3950, quad core, 1.6GHz, 8GB DDR3 (ECC), 2x 1Gb Ethernet RJ45, 2x USB 3.0, 1x VGA, -40°C to +70°C (10 min +85°C) @1.5m/s airflow, screened


3U CompactPCI PlusIO, 8HP, Intel Apollo Lake-I E3930, dual core, 1.3GHz, 4GB DDR3 (ECC) RAM, 2x 1Gb Ethernet M12 X-Coded, 2x USB 3.0, 1x VGA, -40°C to +70°C (10 min. +85°C) screened, conformal coating

Miscellaneous Accessories

Extension board to adapt 3U CompactPCI or CompactPCI Serial (CPCI-S.0) boards to 6U format; for evaluation purposes


CompactPCI 3U 1-slot backplane for stand-alone operation of F14, F15, F17, F18, F19P, F21P, F22P, F23P: 32-bit/33-MHz with rear I/O, 3.3V supply, ATX-power, power, JTAG, IPMB and utility connection, 6x screw connection M3

Related Hardware
F600 - Side Card for SATA/Legacy I/O

2 COM extensions and SATA hard disk slot, for F14 and compatible SBCs, -40..+85°C screened

F602 - CompactPCI Express Side Card

3U CompactPCI to CompactPCI Express side card with 1 USB, 1 COM, 1 DVI, SATA hard disk slot, for F14 and compatible SBCs, 0..+60°C

F603 - Side Card USB/COM

3U CompactPCI side card with 2 USB and 1 COM extension, SATA hard disk and CompactFlash slot, for F14 and compatible SBCs, mounted to the right of the SBC, 0..+60°C

F606 - Side Card Gb Ethernet

2 Gigabit Ethernet on Lemo railway compliant connectors, 1 COM extension (SA-Adapter not included), SATA hard disk slot, for F14 and compatible SBCs, conformally coated, -40...+85°C screened

CT12 - Rear I/O Transition Module

CompactPCI PlusIO rear transition module 3U/80mm, 2 Ethernet, 4 USB, 4 SATA, 4 PCIe x1, -40°C..+85°C qualified

Mass Storage

MicroSD card, 8 GB, aMLC, -25°C to +85°C


MicroSD card, 16 GB, aMLC, -25°C to +85°C


SSD mSATA 3.x, 64 GB, MLC, -40°C to +85°C


MicroSD card, 4 GB, -40°C to +85°C


SSD mSATA, 8 GB, -40°C to +85°C

Systems & Card Cages
0701-0056 - CPCI to CPCI Serial Hybrid Rackmount Enclosure, 8 Slots, 3U Cards Vertical

CompactPCI 19" 4U/84HP rack-mount enclosure for 3U cards (vertical), 4+4-slot 3U CompactPCI / CompactPCI Serial hybrid backplane, prepared for rear I/O, 250W power supply wide range 90..264VAC on rear, 1U fan tray with 2 fans included, 0..+60°C


This product has configuration options. Please contact MEN for details.



Linux Yocto BSP (MEN) for F26L, for creation of boot media for first tests
Note: Final system configurations may require additional software or a different Linux environment according to the application requirements.


Windows ERTC/SMB support package

Application Examples

Speed Camera Control

The speed camera control application is based on a Computer-On-Module concept, alternatively a 19” CompactPCI solution, depending on the complexity of the control tasks.

QoS Testing for Mobile Networks

This CompactPCI PlusIO based system is used for Quality of Service (QoS) testing of mobile networks all over the world.

Bottling Facility Control

In this application, a customized CompactPCI PlusIO CPU board supervises the fluid levels during the bottling process.

Power Automation

3U CompactPCI systems are used as the computing heart of a station master system on the plant control level.

Intelligent Well System Control

This control platform for intelligent well systems is realized as a pre-validated 3-slot 3U 24HP CompactPCI system with its own rugged power supply unit.

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