Honeywell VARIODYN  D1 DOM4-24 Digital Output Module

The Honeywell VARIODYN® D1 DOM4-24 Digital Output Module is the central control and monitoring unit of the VARIODYN® D1 Public Address and Voice Alarm System. Its primary purpose is to manage, control, and supervise loudspeaker circuits, power amplifiers, and audio signals in both normal operation and emergency evacuation scenarios.
Designed to meet international safety standards, the DOM4-24 ensures clear communication, automatic fault detection, and reliable emergency announcements, making it a critical component of life-safety audio systems.

Where It Can Be Used?

The DOM4-24 is ideal for large and complex facilities where reliable public address and emergency voice evacuation are essential. It is widely used in:

• Airports and railway stations
• Metro and subway systems
• Shopping malls and commercial complexes
• Educational institutions and campuses
• Hospitals and healthcare facilities
• Industrial plants and large factories
• Convention centers and public venues

Its LAN/WAN-based architecture allows seamless networking across multiple buildings and zones.

Honeywell VARIODYN D1 DOM4-24

The DOM4-24 acts as the core processing and control element of the VARIODYN® D1 system. It features four independent audio outputs capable of controlling six loudspeaker zones per output, supporting a total of 24 loudspeaker circuits.

The module continuously monitors loudspeaker lines, power amplifiers, and system communication. In the event of amplifier failure, the DOM4-24 automatically switches to a backup amplifier without interruption. Integrated digital signal processing allows volume control, equalization, delays, and alarm message storage.

With Ethernet networking, digital audio links (DAL), automatic volume control (AVC), and compliance with IEC 60849 / VDE 0828, the DOM4-24 delivers a future-ready, standards-compliant solution for professional voice alarm systems.

Advantages

• Centralized control of up to 24 loudspeaker circuits
• Automatic changeover to redundant backup amplifiers
• Continuous monitoring of speakers, amplifiers, and signal paths
• Integrated audio memory for evacuation messages and alarms
• Cost-effective installation using standard Ethernet cabling
• Fast fault detection with logging and status indication
• Remote configuration and monitoring via network
• Fully compliant with international voice alarm standards

Areas We Serve

Fire Projects Pvt. Ltd. supplies, installs, and commissions Honeywell VARIODYN® D1 systems across Gujarat and pan-India, including:

Ahmedabad, Vadodara, Surat, Rajkot, Gandhinagar, Halol, Sanand, Vapi, Ankleshwar, Dahej, and major industrial zones.

We serve commercial buildings, infrastructure projects, manufacturing units, healthcare facilities, IT parks, and public institutions.

Why Choose Fire Projects Pvt. Ltd.?

Fire Projects Pvt. Ltd. is a trusted fire and life-safety system integrator with proven expertise in Honeywell Voice Alarm and Public Address Systems. We provide complete solutions—from system design and engineering to installation, testing, commissioning, and AMC support.

Our team ensures that every VARIODYN® D1 installation is fully compliant, reliable, and optimized for real-world emergency scenarios.

Contact Us: +91 98244 42333 ||Email :- info@fireprojects.co.in