target is to use orange pi board to read vems data for realtime data over ser2net or dataloging trigger frame stream.
current board: Orange pi lite
OS Armbian Ubuntu Desktop : https://www.armbian.com/download/
to connect it to vems we need to have serial port on the board, it has some UARTS but they are ttl level, so we need some max232 interface.
using one like that : http://www.dx.com/p/rs232-to-ttl-serial-communications-module-w-indicator-blue-black-221240#.WVLg6GiGNdg
using UART3 to connect it: 
to get it working we need to change orange configuration in /boot, link how to do that : https://forum.armbian.com/index.php?/topic/1524-orange-pi-one-how-to-enable-uart/