Signum / homecenter v2 hardware snap tcp


I have a homecenter v2, it’s the same hardware as the signum. I replaced the compute module from homecenter with a module with openhab 3.0.1., also installed the snap tcp. But the openhab doesn’t connect to the bus. Do i need to install something else? Is the connection made over USB or Serial?
Also the led’s RUN and ACT doesn’t light up. Which GPIO needs to be configured for this?
Openhab is already running on my server and my Bose soundtouch is also connected.
I think this was interesting because you must only connect the Bus and the network to the module.


Did you add te Velbus binding to OH3