This bachelor thesis is divided to theoretical and practical part, in theoretical part deals with description Access control systems ACS. The benefits of deploying systems are discussed, your architecture, opportunities for future development in IP sites and power over technology Power over Ethernet. Introduces the use of the interface Wiegand. In text are described individual authentication and identification technology. The largest space is devoted to radiofrequency technology and now unused magnetic and Wiegand cards. Outlined is NFC technology. From biometric technology is described optical method fingerprinting. In the practical part, the thesis deals with the design of laboratory exercise. The supplied components are described in the ...