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SC21 - Intel Atom SBC for Control of Multiple 10.4" to 21" Displays

Display Control Board

This product has been discontinued.

The SC21 is a rugged, fanless and maintenance-free single-board computer for intelligent display devices, e.g., for infotainment purposes in trains, public buses or airplanes.

Download data sheet

  • SC21 Product ImageSC21 Intel Atom SBC with Display Computer DC2
  • SC21 Product ImageSC21 Intel Atom SBC for Intelligent Displays
  • SC21 Product ImageSC21 Intel Atom SBC for Intelligent Displays
  • SC21 Product ImageSC21 Intel® Atom™ SBC - top view
  • SC21 Product ImageSC21 top view
  • SC21 Product Image
  • SC21 Product Image
  • SC21 Product Image
  • SC21 Product Image
  • SC21 Product Image

Main Features

  • For LCD TFT panels sized 10.4" and larger
  • LVDS up to 1366 x 768
  • Backlight control, prepared for touch
  • Intel Atom Z520PT, 1.33 GHz
  • 1 GB RAM, microSD card slot
  • PCI Express Mini Card and SIM card slot for WLAN, UMTS, GPS, GSM, HSDPA, EDGE, LTE
  • 2 FastEthernet, 2 USB 2.0
  • SA-Adapter slot for serial interface
  • Power supply 9 to 36 VDC (12 or 24 V nom.)
  • Prepared for -40 to +85°C (screened)
  • Optimized for conductive cooling
  • EN 50155 compliant (with special PSU) (railways)
  • Prepared for ISO 7637-2 compliance (E-mark for automotive)
SC21 Product Image

Technical Data

  • Intel Atom Z520PT
    • 1.33 GHz processor core frequency
    • 533 MHz system bus frequency
  • Chipset
    • Intel system controller hub US15W
  • 1GB DDR2 SDRAM system memory
    • Soldered
    • 533 MHz memory bus frequency
  • MicroSD card slot
  • SATA interface for HDD/SSD
    • Transfer rates up to 100 MB/s
  • 1 LVDS 25-pin connector
    • For direct connection of an LVDS display with a resolution of up to 1366x768 (secondary interface with up to 1900x1200)
  • 1 LVDS backlight 10-pin connector
    • Brightness control via software
PCI Express Mini Card slot
  • For functions like Wi-Fi, WIMAX, GSM/GPRS, UMTS
  • SIM card slot
  • PCI Express and USB interface
  • Accessible via, e.g., a reverse SMA connector
  • USB
    • Two USB 2.0 host ports
    • Accessible via Type A connectors
    • UHCI implementation
    • Data rates up to 480 Mbit/s
  • Ethernet
    • Two 10/100Base-T Ethernet channels
    • Accessible via RJ45 connectors
    • Switch functionality
  • Touch interface connector
    • USB-driven 4-pin connector
    • Touch technology depending on touch sensor, touch controller and software
  • 4 binary inputs via 10-pin power connector
    • Universal inputs, e.g., for geographical addressing
Intelligent Power Supply with Controller
  • Voltage supervision
  • Temperature supervision via LM50 sensor
  • Backlight control (turns off display at configurable temperatures)
  • Buffer functionality for RTC and BIOS CMOS
  • Reset of CPU board possible
  • Wake on time
  • Watchdog
  • Accessible via SMBus
Electrical Specifications
  • Supply voltage:
    • 12 VDC nom. or 24 VDC nom. (9 to 36 V)
  • Power consumption:
    • Ca. 8 W (without display)
Mechanical Specifications
  • Dimensions: 220 mm x 150 mm x 35 mm
  • Weight: approx. 240 g (320 g with heat sink)
Environmental Specifications
  • Temperature range (operation):
    • -40°C to 70°C, with up to 85°C for 10 minutes according to class TX (EN 50155) depending on cooling concept (sufficient cooling required)
    • Prepared for conductive cooling (via connection from mounting frame to metal display housing)
    • Fanless operation
  • Temperature range (storage): -40..+85°C
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300 m to + 3,000 m
  • Shock: according to EN 50155 (10.2.11)
  • Vibration: according to EN 50155 (10.2.11)
213,000 h @ 40°C according to IEC/TR 62380 (RDF 2000)
  • Conforming to EN 50155, EN 50121-3-2/EN 61000-4-5
  • Prepared for certification according to ISO 7637-2 (E-mark) requirements
Software Support
  • Windows XP Embedded
  • Linux
  • For more information on supported operating system versions and drivers see Software.


  • Intel Atom Z530P, 1.6 GHz, 533 MHz FSB
  • Intel Atom Z510P, 1.1 GHz, 400 MHz FSB
  • Intel Atom Z520PT, 1.33 GHz, 533 MHz FSB
  • Intel Atom Z510PT, 1.1 GHz, 400 MHz FSB
8-bit LVDS for secondary display via SDVO-to-LVDS converter
  • Resolution: Up to 1920x1200
  • Backlight control via brightness sensor
  • Second MicroSD card slot
  • USB Flash SSD
    • Up to 8 GB
PCI Express Mini Card slot
Slot compatible with half-size modules
  • Ethernet
    • 2 Fast Ethernet on M12 connectors
  • HD audio
    • HD audio codec
    • Audio stereo in
    • Audio stereo out
    • SPDIF out
    • All available via 9-pin D-Sub connector
  • Serial interface
    • 1 serial interface realized via SA-Adapter, e.g., RS232 or RS422, isolated or not, IBIS
  • Custom connector available instead of standard I/O interface board
Electrical Specifications
External PSU suited for railway applications
Other Options
  • The product concept is very flexible, there are many other configuration possibilities.
  • Please contact our sales team if you do not find your required function in the options.
  • Some of these options may only be available for large volumes.

Ordering Information

SA2 - RS422/RS485 Interface Adapter

RS422/485, full duplex, optically isolated, -40°C to +85°C screened

SA3 - RS232 Interface Adapter

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

Mass Storage

MicroSD card, 4 GB, -40°C to +85°C

PCI Express Mini Cards
PX1N - GLONASS & GPS Interface

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

PX4 - Mobile Phone Voice Interface

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

PX5 - USB HID to Stereo Audio Interface

USB HID to analog audio PCI Express Mini Card, 1 stereo input and 1 stereo output, conformal coated

PX6 - Security Smart Card Reader

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




MDIS5 System (and Device Driver) Package (MEN) for Linux. 
This software package includes most standard device drivers available from MEN.

For a Linux driver package supporting the Micrel KSZ8842-PMQLI Ethernet controller used in the SC21 and the DC2, please refer to www.micrel.com/index.php/en/products/lan-solutions/controllers/article/15-ksz8842-pmql.html. We highly recommend a kernel newer than 2.6.32.


MDIS5 low level driver sources (MEN) for XC2 PSU Control via SMBus (also used in DC1, DC2, SC21)


MDIS5 low-level driver sources (MEN) for board management controller on MEN Intel CPUs


Windows Installset (MEN) for XM1, XM1L, DC1, DC2 and SC21.

For a Windows driver package supporting the Micrel KSZ8842-PMQLI Ethernet controller used in the SC21 and the DC2, please refer to www.micrel.com/index.php/en/products/lan-solutions/controllers/article/15-ksz8842-pmql.html.


Data Sheets

Application Examples

Passenger Information Systems

Modular 19-inch systems like 3U CompactPCI or CompactPCI Serial are ideal for passenger information solutions in transportation applications.

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