A gate used to need one thing from the building: power. A modern entrance needs data too. A camera, a video intercom, a plate reader and an access system you manage from a phone all depend on a connection at the gate. When that connection is weak, the camera drops, the intercom video lags and the app says the gate is offline.
There are three ways to get a connection to the gate.
Copper cable
Standard network cable works when the gate is close. An Ethernet run is limited to about 328 feet. Past that, the signal needs something else to carry it.
Fiber
Fiber carries data over long distances with very little loss, which suits a gate at the end of a long drive. It is glass, not metal, so it does not conduct electricity. A fiber run between the building and the gate does not give a lightning surge a path between the two.
Point-to-point wireless
Where trenching is not practical, a pair of radios can link the building and the gate through the air. It needs a clear line of sight between the two ends and careful aiming.
Why it gets left out
The network is usually the part of a gate project that is handed to someone else, or left for the owner to sort out. That is how an entrance ends up with a good gate, a good camera and a connection that cannot keep up with either.
Statewide runs the network with its own crew: underground fiber, fusion splicing, OTDR testing and point-to-point wireless. The people who build the gate are the people who connect it.
Before you choose cameras or a plate reader, ask how the data gets from the gate to the building. It is the first thing to plan and the last thing most quotes mention.
Fiber, cabling and wireless for gates, cameras and multi-building sites.