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The formation is directly related to the staff of the equipment, a card reader, electronic door locks, go out button, alarm sensors and alarm horns and so on.
The middle layer is the controller to receive information on the personnel of the underlying equipment, compared with the information stored in their own to make a judgment, and then issued a processing information.
The top layer is a computer, a number of controllers through the communication network with the top of the computer connected to form the entire building access system.
Access Control System It consists of three levels of equipment.
