The AC-825IP is a 6-door (4 Wiegand format & 2 OSDP readers) networked access controller suitable for a medium-scale to high-scale security system. The controller comes with one onboard expansion slot and can be further expanded by connecting up to 12 expansion boards via OSDP. Using D-805 door expansion boards, a single AC-825IP can handle up to 58 doors and 100,000 users. Driven by AxTraxNG™ – Rosslare’s powerful and flexible software – the system provides a modular and expandable solution for commercial and institutional needs.