The AC-825IP is a state-of-the-art 4-door networked access controller, comes with one onboard expansion slot and can be further expanded by connecting up to 16 expansion boards via OSDP
the AC-825IP could control up-to 72 doors
Each AC-825IP access control unit (ACU) supports 300K users, 500K event log entries (FIFO), 4 doors (readers), each with 2 inputs and 1 output, four auxiliary inputs and two auxiliary outputs on board.
The AC-825IP includes AES128-bit encrypted communication via TCP/IP, and provides battery charger for 7Ah, 12V lead acid battery. (Battery sold separately)