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> iR 3220 (6831)


  • Sitara AM3352 Cortex-A8 @ 600MHz
  • 256MB DDR3
  • 256MB NAND Flash (for boot)
  • 1 x SD-Slot
  • 3 x LAN (1 Gigabit, 2 Fast Ethernet)
  • 2 x USB 2.0 Host
  • 2 x RS232/422/485
  • 8 x Digital-I/O (4 Input, 4 Output)
  • 1 x I²C
  • 1 x mPCIe-slot for 3G/4G-Modem, GPS and other
  • 1 x SIM card slot
  • 1 x WLAN 802.11b/g/n (optional)
  • 2 x antenna sockets (optional)
  • 1 x Console serial Port
  • New Option: Secure Remote Access by viaVPN
  • Low Power, fanless, no cables
  • Operating Temperature −20°C - 65°C
  • Debian GNU/Linux Kernel 3.18
  • OpenWrt available, version DD
  • DIN RAIL mountable
  • Starter kit available

Baltos iR 3220 onRISC ARM Industrial PC with Ti Sitara Cortex-A8 Am3352 processor system on Chip SOC


Baltos iR 3220

Quick Link: | Features | More Pictures | Overview | System | Serial Ports | Power and Environment | Mechanical | Standards | Software Specifications | Ordering Information | Options | Packaging | Download |


  More Pictures

Baltos iR 3220 onRISC ARM Industrial PC with Ti Sitara Cortex-A8 Am3352 processor system on Chip SOC  
Click on the thumbnails to enlarge them …

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OnRISC Baltos iR 3220 is a fanless industrial embedded PC in compact dimensions, designed for DIN Rail mounting. It is based on an ARM Cortex-A8 with NEON SIMD Coprocessor, up to 1GHz CPU clock speed. Low power consumption, wide temperature range -20C to 65C and flexible power supply (12-50V DC) make it an ideal system for industrial automation.

The embedded computer runs Linux on ARM operating system Kernel 3.18, pre-installed on the internal NAND Flash memory. Or it comes as Debian GNU/Linux, booted from an SD card in the front side slot. Another SD-card provides OpenWrt DD, including an install-option to the Flash memory. Even a Router Firmware specialized in easy-to-use VPN networking is available.
For boot of customers application from NAND Flash a system configuration with buildroot is supported. With Debian's repository database it is easy to install and update the free software on the Baltos. VS provides information for configuration and sample installations of Linux for Baltos.

The system allows extension with GPS and GSM/3G/4G communication, so installation on mobile bases is possible. WLAN is available as usual, two locations for antenna sockets are provided. Models with further extended temperature range exist, allowing for remote installations.

The great variety of interfaces like LAN, serial ports, USB, I²C, Digital I/O plus more options makes it easy to connect various industrial devices and field buses to the Baltos.

For Baltos there is an option to use the viaVPN system for Remote Access and Monitoring over Internet. viaVPN provides secure and strong encrypted access, without any re-configuration of firewalls. Customers firmware/application must be accessible via Ethernet or WLAN, for example via a web interface or by a Telnet/SSH connection. Then viaVPN extends the access over Internet, protected by a VPN tunnel.



  • Sitara AM3352 ARM Cortex-A8 RISC CPU @ 600MHz
  • 256MB DDR3
  • Real time clock with battery backup

Mass Storage

  • 256MB NAND Flash memory (bootable)
  • SD 2.0 / SDHC SD-card slot (bootable)


  • 1x 1000/100/10 Mbps Gigabit Ethernet
  • 2x 100/10 Mbps on integrated Fast Ethernet Switch

Expansion Slots

  • 1x miniPCIe via USB 2.0 (for GPS, GSM/3G/4G card)
  • SIM card for GSM/3G/4G modems in miniPCIe slot
  • Also for an added CAN Bus, third serial port or WLAN

Serial Peripherals

  • 2x USB 2.0 Host
  • 2x RS232/422/485 high speed
  • 1x Console Port RS232
  • 1x I²C

Digital Input/Output

  • 4x TTL Output signals (64mA sink / 32mA source)
  • 4x TTL Input signals
  • IRQ for input signals
  • Terminal block connector


  • 1x Power, 1x 3G, 1x WLAN, 1x Application
  • LAN: 3x Link and Speed

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  Serial Ports


  • 2x RS232/422/485
  • Highspeed UART, 64 Byte FIFO (16C750)
  • RS232: up to 921.6/1000 kbps
  • RS422/485: up to 3.7 Mbps

Available Modes

Configured by DIP-Switch or Software

  • RS232
  • RS422 full duplex
  • RS485 4-wire, full duplex
  • RS485 2-wire, half duplex, without echo


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

RS485 Data Direction Control

Driver Automatic via RTS

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  Power and Environment


  • Input 12 - 50V DC
  • 0.2A @ 12V minimal
  • 0.8A @ 12V typical
  • 3-pin Terminal block connector
  • Auxiliary Output 5V @max. 0.5A on Digital-I/O connector


  • Operating −20°C - 65°C
  • Storage: −30°C - 85°C
  • Humidity: 10-85% non-condensing




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

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154×104×50 mm³ (W×L×H)



Construction Material

0.8mm Metalsheet black


  • DIN Rail
  • Wall mount

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  • EN 55022 Class B
  • EN 61000-3-2: Limits of harmonic current emissions
  • EN 61000-3-3: Limitation of voltage changes
  • 47 CFR FCC Part 15 Subpart B

EMS (EN 55024)

  • EN 61000-4-3: Radiated RFI
  • EN 61000-4-4: Electrical Fast Transient
  • EN 61000-4-5: Surge
  • EN 61000-4-6: Induced RFI
  • EN 61000-4-8: Power Frequency Magnetic Field
  • EN 61000-4-11: Power supply dips


EN 61000-4-2 4kV contact 8kV air for

  • Serial Ports
  • USB
  • Ethernet
  • DC Power connector
  • Digital-I/O

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  Software Specifications


Latest stable release available as ready-to-run SD card image or can be built/customized via vsdebootstrap project (Github)
BSP with Kernel and bootloader patches and basic configuration (Github)
layer-baltos with Kernel and bootloder patches suitable for new projects or integration into already available projects (Github)
Buildroot and Yocto are suitable for installation to NAND Flash


Based on branch DD 'Designated Driver', comes ready-to-use on an SD card. Installation into NAND Flash memory is supported.
To self-create this software the setup procedure is on GitHub.

Remote Access option

The demon to access the system viaVPN provides secure Remote Access over Internet. It supports a Debian-based Installation, and buildroot as well.

Connect via Internet
viaVPN provides easy access to remotely installed systems. Software installation is quickly done with convenient tools to get access from all locations
All communication uses a VPN-tunnel encrypted by SSL and AES-256.
Firewall friendly, also for 3G/4G use
Access to the viaVPN Cloud Servers is done like https protocol in a browser. Re-configuration of firewalls is not required. This enables use with mobile networks.

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  Ordering Information


OnRISC Baltos iR 3220

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WLAN Kit internal
internal module 802.11b/g/n, pigtail and antenna
Purchase time option, not for later retrofitting


WLAN Kit external
USB stick 802.11b/g/n, antenna standard SMA-Reverse
Allows other antenna or connection by cable


Power supply adapter 12V DC, 1A


Demon viaVPN, provides secure Remote Access system over Internet


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


Boot SD with OpenWrt installed (4/8GB).
Supports installation into NAND Flash memory


GSM/UMTS mPCIe card for 3G modem


GSM/UMTS/LTE mPCIe card for 3G/4G modem


GPS mPCIe card for use of active antenna


PCI Express Mini Card for second CAN Bus port


PCI Express Mini Card for a third serial port


Starter Kit

  • 4GB SD card for DEBIAN/GNU Linux
  • Power adapter 12V @ 1A
  • Adapter cable for console port
  • Documentation and Development Software on DVD

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Packing list

  • OnRISC Baltos iR 3220 system
  • Printed Quick Installation Guide
  • Terminal blocks for Power Supply, Digital-I/O
  • DIN Rail Clamp
  • Wall mounting plates

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 (Edition: September 2015)
 (Edition: November 2015)
 (Edition: April 2017)
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