Line Isolators & Loop Protection

ATEÏS Ring Protector System – Smart Redundancy for Uninterrupted Emergency Communication

The ATEÏS Ring Protector System is an intelligent solution designed to ensure maximum reliability and availability in Voice Alarm and Evacuation Systems. By continuously monitoring loudspeaker loops and instantly isolating faults, it guarantees that critical evacuation messages are always delivered – even in the event of a line failure.

Built to meet EN54 standards, the system provides fault-tolerant audio distribution for mission critical environments such as airports, railway stations, tunnels, stadiums, shopping malls, and large public venues.

Why Ring Wiring Matters

Unlike traditional radial wiring, ring wiring forms a closed loudspeaker loop, allowing the audio signal to travel in both directions, even when de ring breaks. This architecture ensures uninterrupted operation, as the system can also automatically detect and isolate short-faults and ground-faults without affecting the audio transmission to the loudspeakers.

Key Benefits

• Continuous safety – Audio remains available at cable OPEN and SHORT fault
• Automatic fault isolation – Real-time detection and segment isolation
• EN54-compliant – Meets international life‑safety regulations
• Scalable architecture – From small installations to large infrastructures
• Easy integration – Seamless compatibility with IDA8, BOUTIQUE, and TERRACOM systems

System Components

• Ring Protector Unit (RPU) – Compact isolator for fault detection and loop continuity
• Ring Driver Rack (RDR) – Central rack unit managing up to 8 ring driver cards (RDCs)
• Ring Volume Controller (RVC) - Provides local volume control and local music input without compromising evacuation priority

Where it Fits Best

• Airports and railway stations
• Tunnels and underground facilities
• Stadiums, arenas, and convention centers
• Shopping mall and large public venues
• Hotels, retail, and mixed use buildings

Where reliable evacuation messages are essential!

Reliable, Scalable, and EN54-Compliant

When every second counts, the ATEÏS Ring Protector System ensures your message always gets through. Its smart redundancy and fast response time (fault isolation within seconds) make it the ideal solution for life-safety installations.