These smart IP door visitors contain the access controller crafted into your reader. They can be run using Electricity above Ethernet (PoE). Anything is in the door, so the wiring is a lot easier. Wiegand audience are available in various sizes that mount on the mullion with the door or https://spencerbujzn.activosblog.com/34295937/a-secret-weapon-for-door-acess-control