Should the radiation of the Netatmo doorbell be adjusted at the access points?

A LAN makes sense, yes, but why even 2?

As a reserve. ;)

2x LAN: 1x video intercom system via POE, 1x spare for whatever comes in the future. I might want to install an additional camera (different angle, etc.) or a separate contact / opener option, etc. :cool: (for me, only the additional cost from simplex to duplex cable counts, it costs almost nothing anymore) and having is better than needing .. ;)

But then the camera has no other angle if it is connected to the same physical cable. ;)

Then the camera doesn’t have a different angle if it’s connected to the same physical cable. ;)

?? -> 2nd LAN cable of the duplex cable (spare cable) ...

Exactly. The second conductor of the duplex cable ends, by principle, at the same point as the first.