Plug a single finish with the serial cable into the console port (also referred to as a serial port or DB9 RS232C asynchronous serial port) from the RouterBOARD and the other stop in your Personal computer (which hopefully operates Windows or Linux). It's also possible to use a USB-Serial adapter. https://codygtenx.prublogger.com/26270035/indicators-on-winbox-you-should-know