@Luis Hey welcome
First, nice choice for your frame! I have yet to get one of those.
Second, lemon pin out:
In my pic from left to right,
And lastly, your FC.
I don’t have that specific FC, if there is someone here that will confirm this for me like maybe @Denovich, and @burtlo or @Bobnova are great at this too.
I would think dsm is signal (yellow)
Power, red, 3.3V
Good luck, let’s get you in the air!