[Mac] Access PL2303 serial device on Mac

Usage:

1. Install the Pl2303 driver, remember switch function "allow app download from" to "Anywhere" on Mac OS 10.9+
http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=229&pcid=41

2. Install and run ZOC, this tool helps user to access uart port on Mac OS
http://www.emtec.com/zoc/

Ref:
1. http://pbxbook.com/other/mac-tty.html