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Access control card basic definition of the original intelligent Access control system consists of host, card reader and electric lock (add computer and communication converter in the network). card reading circle is a non-contact card reading method. the cardholder can only quickly and quietly read the card near the card reader (5-15cm) once. the reader can feel the card and bring the information in the card (card number) to the host, which checks the illegality of the card and then decides to close the door.
⒈ Access control key fob card reading principle
Access control card principle: because there is a called: RFID when we take the chip containing, RFID when the chip card through the card reader, the card reader issued by the electromagnetic wave will begin to read the information in the card Here the information can not only read, but also write, so the chip card is not only a key, but also an electronic ID card. Because only your personal data is written in the chip, you can know who comes in and out of the card reader place.
Access control key fob card is made of ABS shell packed with chip coil, filled with epoxy resin, combined by ultrasonic welding, there are various shapes of shaped cards. Silkscreen, spray code, dustproof, waterproof, shock-resistant. Can choose dozens of shapes, can be packed with a variety of chips: EM4100, 4102, 4069, 4550, S50, S70, ULtralight, ST176, T5557, T88RF256, TK4100, inSIDE, LEGIC min 256, etc.
the main indexes of the PDA making Access control key fob card.
◆Reading and writing distance: 5-250px
◆Working temperature: -20°C~55°C
◆Erasure life: 100,000 times
◆Encapsulation material: PVC, ABS
◆Color selection: yellow, transparent blue, transparent red
◆Encapsulation process: ABS shell ultrasonic plastic welding
◆international protection protocol: IP67, IP68.
◆Application scope: Access control and attendance, identification, product identification, school management, community management, membership management, points, consumption system, etc.
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