RS485 Network Access Control Controller,Four-Door Unidirectional Access Motherboard, Remote Open,Fire Linkage with Power Supply Box (2 Door)

Comprehensive Security Features:Includes anti-submarine and anti-tracking, Doka open-door, and illegal break-in alarm for robust safety.
Offline Operation:Reliable performance with offline data power-down protection, ensuring access control even without network.Big Metal Power Supply Box (can Connect Battery) Input AC 110V-240V Output DC12V 5A, powers the whole system,also act as the cabinet for the control board.
Rs485 Access Control|High Capacity Storage:Boasts 100,000 user records and 20,000 database cards, ensuring comprehensive access management.
Remote Accessibility:Manage access remotely with mobile app, enhancing convenience and security.
Multi-Door Control:Ideal for large facilities, supports up to 4 doors with independent control for normal open/closed status.
FIRE AND ALARM LINKAGE: Fire and alarm linkage. If there is no connection with the expansion board, only the software interface will alarm and drive the computer loudspeaker. If connected to the expansion board, it can be alarmed by hardware, and if connected to the strengthened expansion board, it can be alarmed safely.