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What is access control??

This short article describes: How electronic access control works; What is meant by access control and why it is used. The meaning of the word access control: With access control, access (and optionally exit) to a secured access area is controlled and, if necessary, monitored. The individual components of access control are listed and described here.

How does RFID work?

RFID (radio frequency identification) enables the identification and subsequent exchange of data using radio technology between an active RFID reader and the matching RFID transponder in the reading field. A prerequisite for the transponder to be recognized by the reader is the use of the common carrier frequency and the appropriate chip technology. The most common frequencies are 13.56 MHz and 125 kHz. The energy required for the passive transponder to function is induced by the RFID reader using radio waves. The reading range for the 13.56 MHz and 125 kHz frequencies is up to 5 cm, depending on the size of the antennas, and up to 40 cm for special applications with particularly large antennas.