Digital Public Address & Voice Alarm System
Redefining Audio Management and Emergency Evacuation for Modern Buildings
When safety, clarity, and reliability matter most, this Digital Public Address and Voice Alarm (PA/VA) System delivers. Designed for mid-to-large-scale commercial and industrial applications, the system seamlessly integrates daily audio distribution—like background music and targeted paging—with robust, code-compliant emergency voice evacuation protocols.
Whether you are managing a bustling airport, a multi-level shopping mall, or a sprawling corporate campus, this system ensures that the right message reaches the right people at exactly the right time.
Why Choose This System?
Our platform is engineered with a "minimal components, maximum functionality" philosophy, reducing installation complexity while offering highly scalable network architecture.
Massive Scalability: Supports up to 2,000 loudspeaker circuits across multiple zones, making it effortlessly expandable as your facility grows.
Automatic Volume Control (AVC): Built-in ambient noise sensors automatically adjust the broadcast volume to ensure announcements are always crisp and clear, even in noisy environments like train stations.
Fail-Safe Reliability: Designed with redundancy, automatic fault detection, and backup amplifier integration. In the event of a critical failure, the system automatically swaps to backup power or standby amplifiers.
Smart Network Integration: Communicates seamlessly over Ethernet and easily integrates with third-party security, fire alarm, and building management systems.
Built-In Memory: Features onboard non-volatile memory for storing up to 96 minutes of pre-recorded audio files and logging up to 67 minutes of emergency broadcasting and PTT (Push-To-Talk) microphone recordings.
Core System Components
The system achieves its power through a streamlined family of intelligent devices:
Digital Integrated System Manager
The "brain" of the system. It acts as the central control unit handling zone expansion, multiple audio source routing, built-in audio file storage, fault diagnosis, and continuous line monitoring.
Configurable Network Paging Console
A user-friendly, elegant paging station featuring a vibrant 4.3-inch colour LCD touch screen. It allows operators to easily manage zone paging, monitor active broadcasts, trigger pre-recorded messages, and use two-way full-duplex intercom functions.
High-Efficiency Amplifiers
Our Class-D digital amplifiers deliver powerful, energy-efficient audio. They feature automatic self-protection mechanisms against overheating, over-voltage, and short circuits, wrapped in a lightweight, fire-proof design.
Network Resource Interface
An external expansion module that takes audio and control signals from peripheral, third-party equipment and bridges them into the central system over the Ethernet network.
Applications and Environments
This solution offers a versatile audio matrix that transitions instantly from ambient mood-setting to life-saving emergency instructions. It is the ideal PA/VA solution for:
Transportation Hubs: Airports, railway stations, and subway networks where zoning and automatic volume adjustments are critical.
Retail & Hospitality: Shopping malls, department stores, and large hotels requiring high-fidelity background music alongside security announcements.
Commercial & Corporate: Office high-rises and business parks needing floor-by-floor targeted paging.
Healthcare & Education: Hospitals and university campuses requiring swift, coordinated emergency protocols.
Certified for Global Safety Standards
In an emergency, voice alarms drastically reduce evacuation times compared to traditional bells or sirens. Our system is strictly compliant with international life safety regulations. It is engineered to meet the stringent requirements of EN 54-16, EN 54-4, and EN 54-24, guaranteeing adherence to top-tier fire safety and evacuation guidelines.

