Connect CuBox to your computer via a USB to micro-USB connector. CuBox has a built-in USB to serial port RS-232 controller based on Prolific PL2303. The default configuration is 115200 bps, 8bits, no-stop bit and both hardware and software flow-control disabled. The port is self powered, meaning you don't need to have CuBox powered but the Prolofic controller gets it's power from the computer and it will be recognized accordingly.
In Linux, once the cable is connected, there should be a new /dev/ttyUSB* device added. You can check which one by running
and you should get something like -
usb 1-1.1: new full speed USB device using ehci_hcd and address 15 usb 1-1.1: configuration #1 chosen from 1 choice pl2303 1-1.1:1.0: pl2303 converter detected usb 1-1.1: pl2303 converter now attached to ttyUSB0
Notice the ttyUSB0 at the last line, this means now that your CuBox now is connected via /dev/ttyUSB0 Now lets open a console, you can choose minicom, putty or others (Linux has a handful of those). If you don't have them installed, you can do so by running (under Debian/Ubuntu or other apt based distro) -
sudo apt-get install putty putty -serial -sercfg 115200,8,n,1 /dev/ttyUSB0
sudo apt-get install minicom minicom -s (choose 'Serial port setup') (Click A, and fill in serial device - for example /dev/ttyUSB0) (Click E, and choose 115200 8N1 by click E,Q, then enter) (Click F to disable Hardware Flow Control) (If needed, click G to disable Software Flow Control) (Press enter) (Now press on 'Save setup as dfl'. Next time you run minicom without the '-s' flag, the saved parameters will be used) (Press exit, which exits the configuration and enters the console
Setting up communication with CuBox and Windows
Setup Putty to be able to communicate with your CuBox:
Select serial as connection type. Serial line: COMXX (where XX is the number of the serial port that windows assign to the new port) Speed : 115200
Save the session with some funny name (CuBox should work). Open the session using the Open button. Done!
The Cubox has a PL2303 (Prolific Technology) Drivers can be obtained here  You can avoid a reboot if you load the kext yourself:
# cd /System/Library/Extensions # kextload ProlificUsbSerial.kext # dmesg
Use your terminal program of choice. OSX ships with screen, or install minicom.
screen /dev/tty.usbserial 115200