how to connect mcu board

[Taro]

I have a mcu (3G communication) board and want to connect it to 3dr solo,
receive MAVLink packet and send some information to some cloud server.
I thought flight controller in 3dr solo was pixhawk 2 (TheCube) but
when I open the cover and looked into it, somehow the board was different
from the one I expected. There are no connectors available for my mcu board.

how can I connect the mcu board to 3dr solo?
I found some information using serial 2 but I do not understand well.
Do I need accessory breakout board?
Need to enable serial 2?
I should study more before I send this but I just got the 3dr solo and
I am new so it's too complicated for me.

Any suggestions would be appreciated.
Best regards.

 

[XevetS]

I thought flight controller in 3dr solo was pixhawk 2 (TheCube) but
when I open the cover and looked into it, somehow the board was different

It is in fact a Pixhawk 2 cube but the carrier board is proprietary to the solo. What are you trying to achieve break it down in simple terms..Perhaps we can help?

 

[Taro]

Hi XevetS,
Thank you for your reply.
What I want to do is, connect my mcu board by wire and
receive some MAVLink packet, and also request some packets
to pixhawk.
I do not know how or where to connect my mcu board.
(I am not a native, maybe my english is so poor, sorry)