Connecting Graupner GR-12L with SUMD

Hardware Radios
1

Hi,

I want to connect my Graupner GR-12L to the Pixhawk 2.
I connect the channel 6 to the SPKT/DSM Port. (https://pixhawk.org/peripherals/radio-control/graupner)
But it doesn`t work at all. The radio I change it to SUMD.
Does Pixhawk work with SUMD?
What have I done wrong? Should I change something in the settings of the Pixhawk?

Thanks for your help.

2

Not so difficult to find…

Benoit did it for Plane.
http://diydrones.com/forum/topics/how-do-you-use-graupner-sumd-with-pixhawk?commentId=705844%3AComment%3A2336756

http://discuss.ardupilot.org/t/arduplane-3-7-1-graupner-gr-16-receiver-and-sumd-protocol/12606