What to do against plug out Ethernet cable from Outdoor AP and use for intrusion

[TobiasFrank]

Is there any protection against plugging out an outdoor AP and use the cable connection for access to the network?

[BrandonS]

Do you mean someone physically unplugging the AP and plugging in their own device?  

It would depend entirely on the switch you are using, but practically I would say no.  You might find a way to use only tagged VLANs and black hole the native/default VLAN or not use DHCP as basic deterrents though.

Maybe best to go for physical security like using conduit and mounting height to prevent access?

[TobiasFrank]

I am using the 8 port poe meraki go switch. And yes exactly thats the point of unplugging the device and use wired connection