Doing telemetry with the pixhawk without the 3DR radios

As far I understand you can use Copter (store.3drobotics.com/products/3dr-radio-set), it is possible to connect my computer directly by a serial port to the Pixhawk telemetry ports to do the same?

I know this sounds weird, what I want to do is use a serial data link such as this (satel.com/product/satelline-easy) to do telemetry.

Where I can find more information about the way Copter communicates with the Pixhawk via the telemetry ports?

I am a PIXHAWK beginner and learning about it .

This URL talking how to connect computer serial port to the PIXHAWK telemetry port / serial port.

pixhawk.org/dev/wiring

I think it is similar to connect two computers by RS232 serial interface.