ID key chain packaging materials: ABS 
 Storage Capacity 64 (bits) 
 Parameters and ID card application 
 EM 4100/4102 standard induction ID card 
 Chips: EM Microelectronics EM4102Water Switzerland 
 Operating frequency: 125KHZ sensing range :2-20cm 
 Size: ISO standard card / thick card / Multi-shaped card 
 Packaging materials: PVC, ABS - 
 Typical applications: attendance systems, access systems, card systems, enterprise 
 4001 Induction ID thick card 
 Chip: Taiwan 4001 COB 
 Operating frequency: 125KHZ sensing range :2-20cm 
 Size: 85.5x54x2mm packaging materials: PVC, ABS 
 Packaging process: ultrasonic package 
 Typical applications: attendance systems, access systems, card systems, enterprise 
 ID card is read-only non-contact IC card, it is powered by the reader and read out the sensors is stored in the EEPROM chip, the only card number, card number card in the previous letters written, sealed card can not be changed. Passive and avoid contact with the chip, the two most prominent characteristics of the RF interface circuit is a critical core technology, which receives RF energy from the reader, the chip generates power and clock, using phase shift keying and amplitude loading other between card and reader technology for wireless communication. Non-contact ID card is easy to operate, fast, reliable, and other advantages, access to a wide range of applications. 
 A, ID Card Features 
 ★ carrier frequency is 125KHZ 
 ★ card reader to transfer data for the load amplitude modulation; 
 ★ card data encoding using anti-jamming ability of the BPSK phase shift keying; 
 ★ card reader data transfer rate to 3.9kbps 
 ★ data storage capacity of 64 bits, including manufacturers, distributors and users of the code; 
 ★ card number after the letters written before the card can not be changed, the only absolutely sure that the card number and security; 
 Two, ID card works 
 System consists of cards, readers and back-controller. Works as follows: 
 (1) The reader will be the carrier signal sent out by the antenna; 
 (2) card into the reader's work area, the card comprising the inductor coil and capacitor resonant circuit to receive the carrier signal emitted reader, card chip RF interface module which generates a voltage signal, reset signal and the system clock, the chip "active"; 
 (3) chip control module will read the data in memory is encoded by the modulation phase modulation on the carrier, the card back to the reader antenna; 
 (4) card reader back to send the received signal demodulation, decoding, sent to the background after the computer; 
 (5) background computer according to the legitimacy of the card number, for different applications and make the appropriate treatment and control. 
 Office Address: Bao'an District, Shenzhen, Nanchang, Takehiro Gushu Town, Building F, First Industrial Zone, north side of 7th floor 

 Company: Shenzhen Smart Card Technology Co., Ltd. Tak Fai 

 Contact: Miss Ma 

 Global Investment Hotline :0755 -83817588-107 

 Consulting QQ: 1603651965 (Please specify source when added QQ Network) 

 Website: http:/www.szdehui.com.cn