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Diamond Point International

MEN Mikro DC2 - Intel® Atom™ SBC for Intelligent Displays

Intel® Atom™ processor, -40 to +70/85°C Operating


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. Its small size makes it suitable for display devices with TFT LCD panels as small as 10.4".

The SC21 is controlled by the Intel® Atom™ XL Z520PT running at 1.33 GHz and comes with 1 GB of DDR2 SDRAM and a MicroSD card slot. The standard interfaces comprise 2 Fast Ethernet (via RJ45 connectors) and 2 USB ports as well as four binary inputs (via the 10-pin power supply connector). The two Ethernet interfaces have switch functionality to provide Ethernet connection to subsequent intelligent displays. A temperature sensor is provided to monitor and control the display. With the exception of the LVDS signals and the display backlight brightness control, all I/O signals are concentrated on a customizable connector PCB, including a USB-driven connector for a touch interface.

The SC21 is equipped with an internal 9 to 36V (12VDC nom. or 24VDC nom.) wide-range power supply and able to operate in a -40 to +70°C environment (+85°C for 10 minutes) with sufficient cooling. It complies with the class Tx railway standard, an optionally available external PSU suited for railway applications can also provide EN 50155 conformity. All electronic components are soldered to withstand shock and vibration and prepared for conformal coating.

Options include other types of the Intel® Atom™ XL processor, a brightness sensor to control the display, a serial interface that can be added via an SA-Adapter, HD audio via a D-Sub connector and an additional LVDS connection for a secondary display, with the two displays then showing individual or identical content as required by the application. A PCI Express® Mini Card slot (with a SIM card slot) in combination with an external antenna can be used to incorporate wireless functions like Wi-Fi, WIMAX, GSM/GPRS, UMTS etc.



CPU SpecIntel® Atom™ Z520PT
• 1.33 GHz processor core frequency
• 533 MHz system bus frequency
ChipsetIntel® system controller hub US15W
Memory1GB DDR2 SDRAM system memory
• Soldered
• 533 MHz memory bus frequency
Graphics1 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
StoragemicroSD™ card slot
• 2 GB microSD™ card
ExpansionPCI 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
Front I/OUSB
• Two USB 2.0 host ports
• Accessible via Series A connectors
• UHCI implementation
• Data rates up to 480 Mbit/s

• Two 10/100Base-T Ethernet channels
• Accessible via RJ45 connectors
• Switch functionality

Binary inputs
• Four universal binary inputs via 10-pin power connector, e.g., for geographical addressing
OtherTouch functionality
• Capacitive touch panel
• USB-driven touch interface
• Anti-glare layer

Intelligent Power Supply with Controller
• Input 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


ElectricalSupply voltage: 12 VDC nom. or 24 VDC nom. (9 to 36 V)
Power consumption: 8W typ. (without display)
MechanicalDimensions: 220 mm x 150 mm x 35 mm
SoftwareWindows® XP Embedded image included (120-day trial version preloaded)
TemperatureTemperature range (operation):
• -40°C to 70°C, with up to 85°C for 10 minutes according to class Tx (EN50155) (sufficient cooling required)
• Fanless operation
Temperature range (storage): -40..+85°C
Humidity(operation): max. 95% non-condensing
(storage): max. 95% non-condensing
Weightapprox. 240 g (320 g with heat sink)
Vibrationaccording to EN 50155 (10.2.11)
Shockaccording to EN 50155 (10.2.11)
MTBF213,000 h @ 40°C according to IEC/TR 62380 (RDF 2000)
EMCConforming to EN 50155, EN 50121-3-2/EN 61000-4-5
Conforming to ISO 7637-2 (E-mark) requirements
Warranty2 Years

Ordering Details

BoardStandard Models:
Intel® Atom™ Z520PT 1.3GHz, 1GB DRAM, 2x Fast Ethernet, 2x USB, 1x LVDS, 1x MicroSD card slot, 24V PSU (non isolated), prepared for -40 to +85°C screened via conductive cooling
Audio interface for mobile wireless cards, with SIM card holder, -40..+85°C screened
CustomisationNeed storage and/or I/O cards added? Need an operating system or your own software image loaded? We can help with that. We have a team of qualified and experienced engineers who can quickly accomplish this. Please contact us for further details.

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