The Aperio system is used in the following way: The user holds an RFID card in front of the lock. The lock sends card credentials wirelessly to the Communication Hub and the Communication Hub (wired through RS-485, Ehternet or Wiegand) then communicates with an EAC (Electronic Access Control) system. The EAC system then makes the access decision. The decision is sent via the Communication Hub to the lock and access is granted or denied.