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Access Control in Whole World

An access control point can be a door, turnstile, parking gate, elevator, or other physical barrier, where granting access can be electronically controlled. Typically, the access point is a door. An electronic access control door can contain several elements. At its most basic, there is a stand-alone electric lock. The lock is unlocked by an operator with a switch. To automate this, operator intervention is replaced by a reader. The reader could be a keypad where a code is entered, it could be a card reader, or it could be a biometric reader. Readers do not usually make an access decision, but send a card number to an access control panel that verifies the number against an access list. To monitor the door position a magnetic door switch can be used. In concept, the door switch is not unlike those on refrigerators or car doors.

Electronic access control uses computers to solve the limitations of mechanical locks and keys. A wide range of credentials can be used to replace mechanical keys. The electronic access control system grants access based on the credential presented. When access is granted, the door is unlocked for a predetermined time and the transaction is recorded. When access is refused, the door remains locked and the attempted access is recorded. The system will also monitor the door and alarm if the door is forced open or held open too long after being unlocked.

ID Card Tray for Epson L800 L805 L810 L850 T50 T60 P50 R290 And Ect.

Tongling, Anhui, China

865622828238

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ID Card Tray for Epson R230 R200 R210 R300 R310 R350 And Ect.

Tongling, Anhui, China

865622828238

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Tongling, Anhui, China

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125KHZ TK4100 RFID ID Inkjet Card

Tongling, Anhui, China

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Tongling, Anhui, China

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