Network Horn : Reshaping the IoT Voice of Intelligent Broadcasting

In the era of intelligent connectivity, precise sound delivery and efficient management have become core demands for smart cities, Industry 4.0, and public safety systems. The OBT-NP313 "Horn of the Network" redefines the value boundaries of network broadcasting terminals with its cutting-edge technology and multi-scenario adaptability, providing industry users with an integrated and intelligent audio solution.

Core Technology, Forging Exceptional Performance
As an industrial-grade audio terminal, the OBT-NP313 employs an embedded Linux system and professional DSP audio processing technology, powered by a high-speed dual-core chip to achieve millisecond-level response and zero-distortion signal transmission. The device supports the PoE++ (IEEE 802.3bt) power supply standard, is compatible with DC 12-24V wide-voltage input, and operates stably in extreme environments ranging from -30°C to 60°C. Its 100Hz-10KHz wide frequency response range, combined with G.722 wideband encoding technology, ensures crystal-clear sound details, delivering CD-level audio quality for both voice broadcasts and music playback.

Comprehensive Intelligence, Empowering Efficient Operations
Breaking the spatiotemporal limitations of traditional broadcasting, the OBT-NP313 deeply integrates SIP 2.0 protocols with TCP/IP and UDP network architectures, seamlessly interfacing with mainstream IPPBX platforms such as Huawei and Cisco. Through protocols like TR-069 and DHCP OPT66, it enables "zero-touch" automatic deployment—devices automatically register with the server and synchronize program libraries upon power-up, significantly reducing manual intervention. Remote management features enhance user experience: administrators can adjust zone volume online, deliver targeted emergency broadcasts, and quickly locate devices via IP address announcements, establishing a "cloud control + terminal execution" operational framework. The innovative "audio-visual linkage" design triggers real-time video feedback from IP cameras during broadcasts, forming a decision-making loop for firefighting commands and emergency response.

Security First, Embracing Green Principles
For stability, the device incorporates triple protection mechanisms: overload current detection chips monitor circuit status in real-time, industrial-grade tantalum capacitors resist voltage fluctuations, and an IP66-rated protective enclosure withstands dust and moisture. With ultra-low standby power consumption of 0.3W, it meets China’s Energy Conservation Certification and RoHS environmental standards. AES-128 encrypted transmission and HTTPS remote management ensure broadcast content security in complex network environments.

Scenario Innovation, Activating the IoT Ecosystem
From morning bells in smart campuses to emergency evacuation broadcasts in transportation hubs and safety instructions in petrochemical plants, the OBT-NP313 delivers 50W high-power output with <50ms ultra-low latency, maintaining sound penetration even in noisy environments. It supports MP3, WAV, AAC, and other audio formats, enabling simultaneous customized broadcasts to different zones via group broadcasting strategies. In the IoT ecosystem, it acts not only as a sound transmitter but also as a data connector—integrating deeply with building automation and security systems through API interfaces to build a smart response network of "sound-light-electricity" synergy.