Access control system "3 in 1" (autonomous operation, software and web server) that allows to manage in an easy and fast way an unlimited number of installations of up to 500 readers each. Up to 10,000 cards / users. Up to 50 IP controllers per installation. Up to 4 expander modules per IP controller. Up to 1,000 access levels. Up to 250 schedules / 100 periods. Up to 25,000 events stored in the buffer.