1U Rackmount Fanless System with 3rd Gen. Intel® Core™ Processor,
EN50155 Certified, 33.6V to 62.4V DC-in, Smart UPS, Extended Temp. -40°C to 70°C
- Intel® Ivy Bridge Processor Core i7
- 2 x DDR3 SO-DIMM up to 16 GB
- 4 x 2.5" SATA HDD/SSD (2 x Easy Swap 2.5" HDD cage)
- Dual GbE LAN ports (M12 connector)
- 4 x USB 3.0, 1 x VGA, 1 x HDMI, 1 x DVI-I
- 33.6V~62.4V DC-in
- Extended temperature -40°C to 70°C
- EN50155 compliant
- Technical Profile
- Thermal Solution
EN 235A is 19" 1U Rack-mount Fanless rugged System, suitable for application such as railway, high-end automation etc. Powered by Intel® Ivy Bridge i7-3610QE CPU and QM77 chipset, quad cores CPU can have high performance 2.3GHz- 3.3 GHz. The fanless design ensures silent operation and eliminates the possibility of gathering dust and external debris inflow which may cause system failure over time. EN235A integrates wide range DC input from 33.6V to 62.4V with extended temperature operation up to 70°C without CPU throttling. Moreover, being EN50155-certified, EN235A possesses high performance under various power supply conditions, especially in rolling stock equipment and railway application.
- Unique Features
EN50155 is an international standard covering electronic equipment used on rolling stock for railway applications. The standard covers aspects of this electronic equipment, including temperature, humidity, shock, vibration, and other parameters. EN235A is compliant with the essential sections of EN50155. Meet with most critical EN50155 Tx Class, EN235A can withstand environmental from -40°C to 70°C internal cubicle temp., cooling test -40°C for 2 hours, dry heat test 70°C for 6 hours. On vibration, 5 to 150 Hz 5 hours / axis (0.5 g) for non-operation, 5 to 150 Hz 10 mins / axis (0.1 g) for operation; Shock is test by Half Sine wave 50 m / s2 30ms on longitudinal, transverse and vertical make it a suitable solution for a variety of railway application, such as content server, passenger infotainment etc.
Internal Back up Battery Set and UPS
While facing main power sudden shut down, the mobile railway solution could in order to have strong reliability, EN235A equipped internal battery set and UPS function. Build-in 10V/2500mA batteries that can support maximum 25W. With UPS board for This feature allows users to have enough time to shut down the system properly or back up the systems when facing unexpected interruption of power supply.
Removable SSD Tray
EN235A is designed to fulfill demands of different application. In order to have more flexibility and be more user-friendly, apart from fixed two SSD expansion, EN235A equipped with two removable SSD trays which can support another 2 storage demand. For applications which require frequent changes on storage of system, such as passenger infotainment, content server etc, EN235A is the best solution.
- EN235A main board: Mini ITX INS8335A
1. Turbo Boost – Full speed operation from 2.3GHz up to 3.3GHz
The powerful combination of Intel Ivy Bridge 22nm processor and QM77 chipset contributes to processor full speed operation. The clock speed can boost up from 2.3 GHz up to 3.3 GHz. Quad cores Processor i7-3610QE features Intel® Turbo Boost Technology 2.0, which can increase dynamically the frequency with Max TDP hitting only 45W.
2. Wide Range DC-in Design
Wide input range from 9 to 24 volt creates a worry-free universality that can be used in different DC systems. INS8335A is the all-inclusive solution for flexible operation. Wide range DC-in design also protects it from damages caused by sudden fluctuation. This protection design can also provide scalability and eliminates the trouble of redesign of existing power architecture. The ability to withstand tough power cranks as well as transient over-voltage situations is thus guaranteed.
|-40°C to 70°C|
|CPU||Intel® 22nm Ivy Bridge Processor (Mobile) socket(rPGA988)
Intel® Core™ i7-3610QE (4C x 3.3 GHZ), 6M L2 cache (45W)
Intel® Core™ i5-3610ME (2C x 2.7 GHZ), 3M L2 cache (35W)
Intel® Core™ i3-3120ME (2C x 2.4 GHZ), 3M L2 cache (35W)
|Chipset||Intel® QM77 Express Chipset (Intel® BD82QM77 PCH)|
|Power System||EN50155 standard 48V solution (33.V to 62.4V DC in)
OpenUPS Uninterruptible Power Supply Board
CYCLON Battery Set supply 10V 2.5A for 1 hour
|Memory type||2 x 204-pin SO-DIMM DDR3 1333/1600 MHz up to 16GB|
|Expansion Slot||1 x Mini PCIe for GEN2|
|Storage Device||2 x 2.5" SATA HDD/SSD (Easy Swap 2.5" HDD cage)
2 x 2.5" SATA HDD/SSD (Fixed)
|LED Indicator||1 x Power LED
1 x HDD LED
4 x LAN LED
|LAN||2 x M12 Connectors Extended from Front Window|
|Power Input||1 x M12 Power Connector|
|VGA||1 x 15-pin VGA connector (female)|
|DVI-D||1 x 25-pin DVI-D connector (female)|
|HDMI||1 x 19-pin HDMI A Type connector (female)|
|Ethernet||Intel® 82579LM & 82574IT GbE LAN (support 10/100/1000 Mbps for x2 RJ45 ports)|
|COM||1 x RS232/422/485|
|USB||4 x USB 3.0|
|2.5" HDD/SSD Tray||2|
OS support list
|Windows||Windows 7 32 bit, Windows 7 64 bit|
|Linux||Open SUSE 12.2、Ubuntu 12.04|
Mechanical and Environment
|Power Requirement||33.6V to 62.4V DC-in|
|Dimension||440 x 44 x 463 mm (17.32" x 1.73" x 18.23")|
|Weight||9.05 kg (19.94 lbs)|
|Operating Temp.||-40°C to 70°C (ambient with air flow)|
|Storage Temp.||-40°C to 85°C|
|Relative Humidity||10% to 90%, non-condensing|
|EMC||CE, FCC Class A|
The whole thermal solution of EN235A consist of three heat transfer methods, heat conduction, heat convection and water circulation. For heat conduction, the solution utilizes a copper heat spreader directly contact with the processor and chipset. Further comes to water circulation that formed in heat pipe, the working fluid indirectly brings away the heat to dual side aluminum heat sink for faster heat dissipation. By adopting high efficiency thermal solution guarantees the system to operate smoothly under harsh environment -40°C to 70°C.
|Test Temperature||High 0°C to 70°C / Low -40°C to 0°C|
|Test Time||15 Hours / 3 Hours|
|Test Standard||Reference IEC60068-2|
|Test Software||Burnin test v7.1,
Crystal DiskMARK 3.03,
Intel Extreme Tuning Utility
|Criteria||After testing, system can't halt.|
- Test Configuration
Intel® Core™ i7-3610QE Processor
(6M Cache, up to 3.30 GHz)
DRAM SODIMM 4GB DDR3 1333 W/T
DRAM SODIMM 4GB DDR3 1333 W/T
Burnin test v7.1、AS SSD、
Intel Extreme Tuning Utility、iperf
KSON THS-b4t-150 Chipeng SMO-3
- Thermal Measurement
7starlake provides real lab testing figures to show how CPU performance is with each tailor made thermal kits as important references and design guide for system engineers. For system integration, the crucial challenge is the operation performanceunder high temperature, thus 7starlake conducts long time experiments tomake sure the superior testing result for all critical missions. By revealing temperature at processor T junction, processor die and heat sink, 7starlake is able to analyse the thermal solution we designed achieves maximum efficacy and observe CPU performance. The high temperature testing takes 12.5 hours which at each temperature point we burn in EN235A for two hours, from 40°C to 70°C.
- Test Result
EN235A CPU Performance
Point -40°C -20°C 0°C 25°C 50°C 55°C 60°C 65°C 70°C CPU T-J 47 52 55 92 93 94 95 95 95 CPU Die 24.7 29.1 35.8 72.3 77.6 81.1 84.2 85.4 86.8 Heatsink 11.7 17.4 24.6 61.4 69.7 74.1 76.7 80.2 82.5 Δ1=(TJ-Die) 22.3 22.9 19.2 19.7 15.4 12.9 10.8 9.6 8.2 Δ2=(Die-HeatSink) 13.0 11.7 11.2 10.9 7.9 7.0 7.5 5.2 4.3 CPU Frenquency (GHz) 3.09 3.09 3.09 3.09 2.93 2.7 2.58 2.31 2.06
To meet the demands of customer’s extended temperature requirements, the whole thermal solution of EN235 consist of three heat transfer methods, heat conduction, heat convection and water circulation. For heat conduction, the solution utilizes a copper heat spreader directly contact with the processor and chipset. Further comes to water circulation that formed in heat pipe, the working fluid indirectly brings away the heat to dual side aluminum heat sink for faster heat dissipation. By adopting high efficiency thermal solution guarantees the system to operate smoothly under harsh environment -40°C to 70°C.
Honeycomb Dissipating Vents
The honeycomb vents are pre-drilled in rigid aluminum frames to fasten thermal convection and the airflow that will astonishingly enhances ventilation. The enclosure features large, open honeycomb vents on the top and back side instead of fan solution that allows natural convection cooling that gather dust easily.
Internal battery set and UPS function
EN 235A equipped internal battery set and UPS function, this feature support power delay off up to 10-15 minutes which allow users to have enough time to shut down the system properly or back up the systems when facing unexpected interruption of power supply.
Copper heat pipes
Heat pipe transfers heat from the heat sources to the heat sink over relatively long distance. Two-phase heat transfer involves the liquid-vapor phase change of a working fluid.
• 8.0 mm diameter heat pipe, 99.9% purity of copper
• High heat conductivity coefficient up to 5000!
Heat sink is known for its ability to improve the distribution of heat. Our tailor-made heat sink is made with copper and aluminum. It can dissipate the heat in the quickest fashion.
• It contains 96% of aluminum, 48 mm in height and weighs 103.5 g.
• Consumes shorter heat dissipating time owing to lower metal density