It is possible to connect the Olinuxino A10S card to a PC using the Olimex USB-Serial-Cable-F in order to log kernel crash for example or configuration without any network available.
The connection is 3.3V only, to avoid damage of the card and it shall be Rx & Tx shall be crossed like standart serial line
Green,Rx (PC point of view) connected to UART0 Tx
Red,Tx(PC point of view) connected to UART0 Rx
Blue, Gnd connected to UART0 Gnd
on linux , no need of driver (for windows a driver is available on the olimex site) you can use std terminal emulator like minicom configured at 115200 bit/s 8N1
no flow control (hw/sw)