Axiomtek tBOX321-870-FL Railway Rated Computer, Intel i3 or i7, 4 LAN, Graphics

AxiomTek tBOX321-870-FL Fanless Computer, i7/i3
Model: tBOX321-870-FL
Availability: 3 - 4 Weeks or Less

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AxiomTek tBOX321-870-FL, Rail Rated Fanless Computer, Intel Core i3 or i7 CPU with Intel QM77 Graphics

The tBOX321-870-FL is a robust railway PC supports Intel Core i7-3517UE (up to 2.8 GHz) or Intel Core i3-3217UE (1.6 GHz) processor. The tBOX321-870-FL adopts an onboard processor and onboard DRAM which greatly reduces the impact of vibration and shock ideally for railway fields. Especially, it is certified with EN50155 / EN50121 for rolling stock, complies with EN45545-2 for fire resistance and power interruption class S2 for power supply stability, greatly advancing the system performance and reliability. This compact railway box computer has an IP40-rated and rugged aluminum extrusion and steel case. The railway box PC can operate in critical environments with temperature ranging from -40°C to +70°C. This application-ready railway PC targets at mobility control unit, passenger information system, video surveillance and many more applications.


  • EN50155, EN50121 certificates
  • Fanless with operating temperature range of -40°C ~ +70°C (EN50155 class TX)
  • Comply to fire protection of railway vehicles Europe standard PrCEN TS 45545-2
  • 3rd generation Intel Core i7 1.7 GHz up to 2.8 GHz or Intel Core i3 1.6 GHz processor
  • DDR3-1600 4 GB memory onboard
  • Isolated RS-232/422/485 and DIO ports
  • Supports USB 3.0 and SATA3 interface
  • 2 removable & lockable 2.5” SATA HDD and 1 CFast
  • 3 internal PCI Express Mini Card slot and 1 SIM slot
  • Lockable I/O interface and M12 type LAN, audio, power and USB connector
  • Wall-mount kit included


tBOX321-870-FL-i7-DC,         Fanless railway embedded computer with Intel Core i7-3517UE processor and 24 VDC power input
tBOX321-870-FL-i3-DC,         Same as above with Intel Core i3-3217UE processor and 24 VDC power input
tBOX321-870-FL-i7-110VDC, Same as above with Intel Core i7-3517UE processor and 110VDC power input
tBOX321-870-FL-i3-110VDC, Same as above with Intel Core i3-3217UE processor and 110VDC power input


CFast, 1 GB or above
3G module
Wi-Fi module
Wi-Fi Bluetooth
GPS module
M12 Gigabit LAN cable
M12 power cable
M12 USB cable
M12 audio cable
Remote switch cable

Power input voltage, 24/110VDC

System TypeRailway-Rated Computers
CPUIntel Core i7/i5/i3
Chipset Intel Core i7-3517UE (1.7 GHz to 2.8 GHz) or i3-3217UE (1.6 GHz); Intel QM77
Maximum System Memory 4 GB
System Memory Configuration 4GB DRAM on-board (DDR3-1600)
Expansion Slots 3 PCI Express Mini Card slots and SIM Card slot
Flash Storage CFast slot
Drive Storage Two 2.5" SATA drive bays with RAID 0/1 (removable with lock )
Watchdog Timer255 levels, 1 to 255 seconds/minutes
Operating Systems Windows Embedded Standard 7 and 8, Linux
LAN Ports 4 Gigabit Ethernet
USB USB 2.0 (M12-type) and 2 USB 3.0
Total Serial Ports4
Serial 4 RS-232/422/485 with isolation
Display VGA and DVI-D
Audio Mic-in/Line-out (M12 type)
Digital IO 8 isolated digital I/O (4 inputs / 4 outputs) lines
Input Voltage 24V | 110V
Enclosure Aluminum extrusion and heavy-duty steel
Dimensions 288 x 211 x 85.7 mm (11.33" x 8.3 " x 3.37")
Weight5.5 kg (12.12 lb)
MountingWall mount
Shock / Vibration 3 Grms with SSD & CFast (5-500Hz X Y Z direction; Random) and 1 Grms with HDD (5-500Hz X Y Z direction; Random)
Operating Temperature -40° to 70°C (-40° to 158°F)
Humidity 5 to 95%, non-condensing
Certifications CE (Class A), EN50155, EN50121, EN45545 and EN60950 compliance