With the continuous improvement of modern science and technology, access control has become an essential security device for office and home. There are many types of access control machines. The following small editors will take you to subdivide it.

1 According to the communication method of the controller and the management computer, it is divided into: RS485 networked access control, TCP/IP network access control, and no network access control.

(1) RS485 Network Access Control Machine. It is the type of access control that can communicate with the computer. It is managed directly using software, including card and event control. It has the functions of convenient management, centralized control, viewing records, and analyzing and processing records. It is characterized by high prices and difficulty in installation and maintenance. However, training is simple, and value-added services such as time and attendance can be performed. Suitable for many people, large mobility, and many projects.

(2) TCP/IP network access control. Also called Ethernet network access control, it is a network access control machine, but the computer and the controller are networked through a network cable. In addition to having all the advantages of access control, it also has the advantages of faster speed, simpler installation, greater number of networking, and cross-regional or cross-city networking. However, there are high equipment prices and require computer network knowledge. Suitable for installation in large projects, large numbers of people, speed requirements, cross-regional projects.

(3) No network access control. That is, a single-machine controlled access control machine is a machine that manages one door and cannot be controlled by computer software, nor can it see records and is directly controlled by the controller. It is characterized by low prices, simple installation and maintenance, inability to view records, unsuitable for more than 50 persons, or frequent movement of personnel (referring to frequent entry and departure), and does not apply to projects with more than 5 doors.

2 According to the number of doors controlled by each controller, it can be divided into: single-door access control, double-door access control, four-door access control and multiple door access control.

3 controller according to the number of each door can be accessed by the reader is divided into: one-way access control, two-way access control. One-way access control machine: When entering the door and swiping the card, you can press the button to exit. The access control machine can only access one card reader for each door. Two-way access control: Swipe in the door and swipe the door (you can also access the door button). Each access control unit can accept two card readers.