Dahua Addressable Fire Alarm Control Panel (1 Loop-254 Devices) HY-1022R-AB

Class A Topology: Reduce wiring costs and enhance circuit stability. Two-Wire, Polarity-Free Communication: The system uses a two-wire, polarity-free technology, eliminating the need for an external power source. This enhances reliability, simplifies wiring, reduces costs, and facilitates maintenance. User-Friendly Display: The 4.3-inch LCD screen (480 × 272) offers an intuitive interface for complete system setup without external tools. Extended Event Logging: Historical events are securely saved and can be queried and printed by time and type. Intelligent Power Management: Automatic switching between main and backup power ensures a stable supply, enhancing system reliability. Comprehensive Protection: Includes short circuit, open circuit, and overcurrent protection for stable operation