Ethernet switches are a central link in digital IP networks in public transport vehicles. They operate on the basis of the standard Ethernet protocol and are used to connect onboard devices such as ticket validators, cameras and board computers in buses, subways and streetcars. In the following, we will discuss the special features of switches for public transport.
https://www.tronteq.com/en/the-ethernet-switch-and-its-role-in-buses-and-trains/
