The Brain of Your Emergency Notification System
The REACT5000 Central Control Unit (CCU) is the core of ATI Systems’ early warning and emergency communication systems, providing enhanced control and monitoring of all connected remote units, including the Indoor Speaker Unit (ISU) and High Power Speaker Station (HPSS). Designed for seamless operation, the REACT5000’s intuitive touchscreen interface allows users to activate tone alerts, pre-recorded voice messages, or make live public address (PA) announcements with ease. The real-time status display enables emergency personnel to monitor the health and performance of all connected units, ensuring quick and reliable communication during critical situations.
With its advanced capabilities, the REACT5000 can be used as a standalone unit for smaller systems or integrated with ATI’s MassAlert® desktop software for complete, multi-location management.
Whether safeguarding a community, campus, military base, or facility, the REACT5000 empowers emergency personnel to respond swiftly and effectively, ensuring critical alerts and instructions reach the right people at the right time—when every second counts.
Advanced Control and Monitoring:
Provides centralized command of all connected ATI remote units, including the Indoor Speaker Unit (ISU) and High Powered Speaker Station (HPSS), ensuring real-time activation and status monitoring.
User-Friendly Touchscreen Interface:
Multiple Communication Paths:
Enhanced Security Features:
Redundant Power Options:
Remote Configuration and Management:
Environmental Characteristics
- Operating Temperature: -40°C to +55°C
- Humidity Tolerance: 0 to 95% non-condensing
Electrical Characteristics
- Supply Voltage: 90-250VAC
- Supply Current Max: 2A (110v)/1 A (220V)
- Standby Time without AC: 8 hours
Communication Interfaces
- Communication to ATI Units: UHF/VHF RF, IP, Ethernet-over-Fiber, Telephone/Twisted DSL, Cellular, and Satellite
- Communication to PC: USB
- Signaling Relays: 2 standard, expandable to 10
- Signaling Outputs: 2 standard, expandable to 12
- Audio Out (for PA or FACP): 8 optional
Audio Characteristics
- Microphone Input: 1 XLR4 configurable
- Audio Amplifer: 7W
- Built-in Speaker: 1W
- Line Level Audio Input/Output: Configurable 600 ohm
Multiple Form Factors
Available in multiple form factors, including an all-in-one CCU or a smaller desktop CCU with separate radio mounting, allowing for flexible installation options.
Customization Flexibility to Meet Your Unique Requirements
With configurable activation menus, target group selections, and multiple language options etc., the REACT5000 CCU is designed to adapt seamlessly to the unique needs of any emergency communication system.


