Usually, the standardization of standard PCs is good thing. However when you enter
the realms of embedded computing, things get a little different.

For instance; which systembuilder has never encountered the serial port dilemma where you face a standard DB9 serial port, but you only need a simple RxD/TxD signal pair and some power source? Not to mention the trouble that many folks have with soldering these connectors. Wouldn't it be nice to have a rugged connector with decent crimpcontacts and just the signals you need?


We can use a wide variety of connection system to suit your requirements. The only limitation is the rear-panel area. Within that area we can mount whatever connector you want (with some limitations).

Molex Micro-Fit 3.0 For automotive cabling we recommend the MicroFit 3.0 connectors from Molex, which are available in 2-24pin configurations. Or the slightly smaller MicroClasp connectors, offering 8-20 contacts. We also like the reasonably rugged Mini D Ribbon (MDR) series from 3M for more sophisticated connections and Molex Micro-D for space-constrained standard connections. These Micro-D connectors take 60% less space than their standard Sub-D counterparts. When there is the need for a large number of signals (probably with some multiplexers on the board), then we can also revert to high-density connections like Molex LFH or 3M's Shrunk D Ribbon (SDR).
3M Micro-D Ribbon Molex LFH Molex Micro-D

Available resources:

  • 4 x USB 2.0 (480Mb),
  • 1 x RS232C at LVTTL level +,
  • 2 x RS232C* at LVTTL level,
  • 1 x RS232C* without RI at LVTTL level,
  • I2C bus with 4V signalling,
  • 10/100Mbps Ethernet,
  • Audio line out & mic in,
  • TV-out,
  • CAN at logic level (RX/TX),
  • 6 x GPIO line,
  • System wakeup control,
  • FM antenna signal,
  • Power: Vin, 12V, 5V, 3V3, 5VSB, Vram.

*) Serial ports from PLX/Oxford OXuPCI952 or OXuPCI954 UART device. Standard hardware comes with the dual UART, which allows for two serial ports on the I/O module.


A simple customized board with rear-panel can be designed for as little as 2500 euro.
So it's worthwhile to consider this, even at relative low quantities.


Custom connections example Double (stacked) I/O board to increase available board-edge to almost 19cm and to create space for the many opto-couplers.


  • 5 x universal logic input,
  • 4 x universal logic output,
  • iButton + LED,
  • RS232 + indicators,
  • RS422,
  • Keyboard scanner,
  • I2C cardreader.

Beyond basics:

It does not have to stop with the above specifications. When needed we can additional functionality by means of a mini PCI express. Planned cards are a quad UART (for a total of 8 serial ports for customer application) and a quad-input 100/120 fps video capture card. Of course, customization costs tend to get quite a bit higher with a custom PCI card configuration.