Author: Site Editor Publish Time: 2025-03-04 Origin: Site
In public spaces such as shopping malls, schools, and hospitals, background music and emergency broadcast systems are not only the creators of the environment, but also the lifeline of safety management. Traditional ceiling speakers generally have pain points such as single function, complex wiring, and limited sound quality. As a ceiling-mounted active speaker that integrates 20W high-fidelity audio output, SIP protocol network communication, and intelligent broadcast control, SIP743T is redefining the standards of public broadcast systems.
Technical core: fully networked audio engine
SIP743T adopts the "network direct drive" architecture, deeply integrates digital audio processing and IP communication technology, and breaks through the limitations of traditional analog systems:
SIP protocol support: Based on the RFC3261 standard, it can be directly connected to the IP broadcast system to achieve single-point/group/global broadcasting, and supports seamless intercommunication with SIP intercoms and IP phones.
20W Class D digital amplifier: signal-to-noise ratio>90dB, frequency response range 80Hz-20kHz (±3dB), voice details can be clearly transmitted even in noisy environments.
PoE power supply (optional): transmit data and power simultaneously through network cables, simplify wiring projects, and reduce deployment costs by more than 30%.
▲ SIP743T ceiling speakers support standard installation, with a thickness of only 8cm, perfectly integrated into the modern architectural ceiling design
Core functions: seamless switching from daily music to emergency broadcasts
Multi-scene audio playback
Background music (BGM): supports MP3/WAV/AAC format streaming media, and can play different content in different areas (such as differentiated music strategies for shopping mall floors).
Scheduled broadcast: preset playback plans through the management platform, and automatically execute tasks such as morning welcome songs and lunch promotion notifications.
Emergency broadcast: when the fire alarm signal is triggered, the current playback is immediately interrupted, the highest priority voice alarm is activated, and the response delay is <100ms.
Two-way voice intercom (optional)
Integrated with high-sensitivity microphone array, supports two-way communication with the central control room, suitable for campus dormitory management, hospital nurse station calls and other scenarios.
Intelligent linkage control
Connect fire sensors and access control systems through RS485 or IO interface to realize the fully automatic process of "fire alarm → automatic broadcast of evacuation instructions → unlocking emergency channels".
Support ONVIF protocol, linkage with security cameras, and synchronous push of voice warnings when abnormalities are found.
Performance parameters: Hard-core strength beyond industry standards
Category Parameter details
Audio output 20W RMS (8Ω load), THD＜0.1%
Frequency response range 80Hz-20kHz (±3dB)
Network protocol SIP v2 (RFC3261), RTP/RTCP, TCP/IP
Audio encoding supports G.711a/u, G.722, AAC-LC, 48kHz sampling rate
Power supply DC 24V / PoE+ (IEEE 802.3at)
Protection level IP54 (dust and splash proof)
Operating temperature -40℃～85℃
Application scenario
Commercial complex
In the shopping mall, SIP743T can play brand advertisements in different areas, automatically broadcast guidance prompts when the flow of people exceeds the limit, and optimize the music style through data analysis to increase the customer unit price.
Smart education
The classroom speakers are linked to the teaching system, the class bell is automatically played, and it is switched to silent mode during the exam. In case of emergency, the emergency plan is broadcast with one click.
Healthcare
Waiting area plays soothing music, pharmacy window calls patients to pick up medicine through voice, and emergency department triggers emergency broadcast to cover the whole building first.
Transportation hub
Airport terminal broadcasts flight information in real time, initiates multi-language evacuation instructions in case of sudden safety incidents, and synchronizes alarms with security gates.
In the wave of smart buildings, SIP743T is not only an audio device, but also a "smart acoustic nerve" for space management. It uses 20W of energy to deliver unlimited possibilities - let every melody be infused with commercial value, and let every broadcast protect life safety.
