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Main Features

  • Ti Sitara AM3354 @ 720MHz, 256MB DDR2
  • 720p Video
  • 1 x microSD, 1 x CFAST
  • 2 x LAN
  • 1 x USB 2.0 OTG
  • 2 x USB 2.0 Host
  • 2 x RS232/422/485
  • 1 x CAN Bus
  • 8 x Digital-I/O
  • 1 x I²C
  • 1 x SDIO-Slot for Wi-Fi
  • 1 x mPCIe-slot for 3G-Modem
  • 1 x Console Port
  • Low Power, fanless
  • Debian GNU/Linux
  • DIN RAIL mountable

Alekto 2 OnRISC ARM Industrial PC with Sitara Cortex-A8 Am335x processor system on Chip SOC


Alekto 2

Quick Link: | Main Features | More Pictures | Overview | System | Serial Ports | Power and Environment | Mechanical | Software Specifications | Ordering Information | Optional accessories | Download |


  More Pictures

Alekto 2 OnRISC ARM Industrial PC with Sitara Cortex-A8 Am335x processor system on Chip SOC           
Click on the thumbnails to enlarge them …

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The OnRISC Alekto 2 is a RISC industrial embedded computer based on ARM Cortex-A8 with NEON SIMD Coprocessor. The great variety of interfaces like LAN, CFast, USB, I²C, serial interface, digital I/O plus more options makes it easy to connect various industrial devices to the OnRISC.

Compact dimensions and DIN Rail mounting capability make the OnRISC to a space saving and flexible mounting industrial computer. It is feasible to be installed even in space limited environments. The internal microSD slot protects the system software against accidentally removal.

The miniPCIe slot provides opportunities for wireless communication. For example WLAN cards are available, and the connected SIM slot allows to use GSM/3.5G modems.

Due to RISC based architecture the OnRISC has very small power consumption, so fanless heat dissipation is possible. Working in a wide temperature range from -10°C up to 50/75°C the OnRISC can be applied in under harsh industrial conditions. Therefore the OnRISC is downright designed for industrial automation.

The embedded computer runs full-featured Debian GNU/Linux on ARM operating system Kernel. This system is installable on a microSD card to place in the internal card-reader.

With Debian's repository database it is easy to install and update the free software on the OnRISC. The OnRISC is capable to act directly as a software development host, WEB, Mail, Print and Database server or as a desktop computer with X11 window manager and many more.

Windows Embedded Compact 7 is also available as operating system. More software is under development.



  • Ti Sitara AM3354 RISC CPU @ 720MHz
  • 256MB DDR2
  • Real time clock

Mass Storage

  • microSD-card as internal boot device, SD 2.0 / SDHC
  • CFast-Slot, SATA as data storage


2x 100/10 MBit Ethernet

Display & Audio


  • PowerVR SGX530 3D engine, resolution up to 720p
  • OpenGL-ES 1.1+2.0, Direct3D Mobile, OpenVG 1.0, OpenMax
  • 2 channel 48kHz over display

Expansion Slots

  • 1x SDIO for WLAN 802.11b/g
  • 1x miniPCIe via USB 2.0 (for WLAN, GPS, GSM/3G/4G card)
  • SIM card for GSM/3G/4G modems in miniPCIe slot


  • 2x USB 2.0 as Host
  • 1x USB 2.0 OTG
  • 1x Console Port RS232
  • 1x I²C
  • 2x RS232/422/485


  • 1x CAN High Speed, 20kbps up to 1Mbps
  • Signals: CAN_H, CAN_L, CAN_GND
  • VScom CAN API, CANFestival, CANopen, LinCAN

Digital Input/Output

  • 8x TTL signals (64mA sink / 32mA source)
  • Configurable Input/Output (0/2/4/6/8 inputs)
  • Maskable IRQ for input signals
  • Terminal block connector


  • 1x Power, 1x 3G
  • LAN: 2x Link and Speed
  • Serial: 2x TxD and RxD

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  Serial Ports


  • 2x RS232/422/485
  • Highspeed UART, 128 Byte FIFO (FT2232D)
  • RS232: up to 500 kbps
  • RS422/485: up to 3.0 Mbps

Available Modes

  • RS232
  • RS422 full duplex
  • RS485 4-wire, full duplex
  • RS485 2-wire, half duplex, without echo
Configured by DIP-Switch or Software


  • RS422: Tx+/-, Rx+/-, GND
  • RS485 2−wire: Data+/-, GND
  • RS485 4−wire: Tx+/-, Rx+/-, GND

RS485 Data Direction Control

by ARTc (Automatic Receive Transmit control)

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  Power and Environment


  • Input 9 - 32V DC
  • 1.5A @ 12V without Wi-Fi and 3G cards
  • 3-pin Terminal block connector, polarity neutral
  • Auxiliary Output 5V @max. 0.5A on Digital-I/O connector


  • Operating CFast mode: -10°C - 50°C, without Wi-Fi and 3G
  • Operating OTG mode: -10°C - 75°C, without Wi-Fi and 3G
  • Storage: -20°C - 85°C
  • Humidity: 10-85% non-condensing




  • EMC: FCC Class A, CE Class A
  • Environment: RoHS

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161×112×53 mm³ (W×L×H)
171×128×53 mm³ including all connectors



Construction Material

1mm Metalsheet


  • DIN Rail
  • Wall mount

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  Software Specifications


Debian GNU/Linux Kernel 3.2 for ARM


Windows Embedded Compact 7


to come soon

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  Ordering Information

Part No.


Product Name

OnRISC Alekto 2

Packing list

OnRISC Alekto 2 system

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  Optional accessories

Power supply

Power adapter 12V @ 1.5A

Boot microSD

with Debian GNU/Linux installed (4/8GB)


SDIO card for WLAN 802.11b/g


mPCIe card for 3G modem

Starter Kit

  • OnRISC Alekto 2 system
  • 4GB microSD card for Linux inserted
  • Power adapter 12V @ 1.5A
  • Adapter cable for console port
  • Documentation and Development Software on DVD

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 (Edition: September 2013)
 (Edition: May 2014)
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* Specifications are subject to change without notice.
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