Communication Solution For Tunnel
The J&R Technology broadcasting system is seamlessly integrated with the tunnel emergency telephone system, enabling both systems to operate as a unified communication platform. Using a single console, shared signaling, and common communication cabling, centralized control of emergency telephony and broadcasting is achieved. This integrated approach simplifies system architecture, reduces infrastructure investment, and significantly improves the operational efficiency of the road and tunnel monitoring center.
In the event of an emergency, drivers and passengers can immediately contact the highway management authority via tunnel emergency telephones, while operators can simultaneously issue evacuation instructions through the emergency broadcast system—ensuring fast, coordinated, and effective incident response.
Key system advantages include:
- Near-end power amplification: The broadcasting system uses near-end amplification, allowing audio transmission and control via the access network. This architecture enables true remote operation and centralized management of broadcasting functions.
- Intelligent caller control: After a broadcast is completed, the system automatically returns to a standby state, reducing power consumption and improving energy efficiency.
- Flexible broadcast modes: The system supports program-controlled fixed-point, zoned, and full-line broadcasting. Audio remains clear and powerful during operation, with no feedback or acoustic howling.
- Simple and efficient operation: The broadcasting system host and emergency telephone system are fully integrated into a single main control unit. When broadcasting is required, operators can initiate announcements with minimal steps using either a microphone or a duty telephone.
Together, these capabilities deliver a reliable, easy-to-operate tunnel communication and broadcasting solution that enhances safety, response speed, and overall traffic management efficiency.
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