Typically, system integrators need to provide a matching upper machine when using a smart card reader. Send control instructions via the PC to the smart card read and write or call interface function to control the smart card read-write device, in the "one to one" (one machine control a smart card read and write) cases via USB or serial port RS232 and RS485, wigan and other communication protocol can be realized, if you want to achieve "one to many" (a bench machine control multiple smart card read and write), you need to add another centralized manager, such as USB HUB, serial ports, switches and other equipment. In this case, it will cause communication on multiple communication ports, which is very inconvenient and error-prone. So, is there any easier way to do it? Adopting the TCP/IP communication protocol will undoubtedly be a better solution.

Lotussmart  l3-e-rj45 is an online non-contact smart card reader that can read and write A non-contact smart card and electronic tag based on the ISO14443 TYPE A/B protocol. The RJ45 network interface is used to communicate with the PC and its associated devices, and the USB 5V is powered. Using TCP/IP communication protocol to interoperate with a variety of Internet devices and applications, can be extended through switches, routers and other equipment terminals, one machine can control multiple terminal, without being limited by the number of PC communication port, easy to install and use. Random offers a variety of platforms, multilingual secondary development kit, rich function interface and example source code, user copied secondary development paradigm, the development difficulty is minimal. The attached demo program implements all the functions of accessing the radio frequency card, with the relevant functions such as the automatic card. The novas smart l3-e-rj45 reads and writes the ideal product for personal identity security certification and online micropayment transactions. It can be widely used in access control, entrance guard system, electronic payment (payment system member consumption), electronic ticketing (big events and public transportation), highway tolls, charging pile, and the application of network authentication, etc.