Compatible with standard SIP (RFC3261) protocol, can connect to mainstream IP PBX/IMS platforms
Built-in HD camera, using H.264 encoding *The device has an aluminum alloy explosion-proof enclosure and can be mounted on a vertical pole
*Internally equipped with one line audio input and one line audio output port, suitable for help requests and special amplification in places like safe cities and tunnels
*Embedded media playback software for use
*The panel features a high-sensitivity intercom microphone for easy communication by the person seeking help
*Internally equipped with a 5W speaker, ensuring the help seeker can hear intercom audio even in noisy or chaotic street environments
*Internally equipped with a digital amplifier with fixed 8Ω/30W (optionally up to 60W) power, meeting amplification needs in various scenarios such as streets and tunnels. You can choose to connect a high-fidelity passive speaker or a horn speaker for longer voice transmission
*Modules and background music module both use Class D digital amplifiers with independent power supply. When there is no broadcast or help request, the device stays muted, making it quieter with less heat
*Internally equipped with one DC12V controllable power supply, suitable for driving lights and other signaling equipment
*Internally equipped with high-quality TCP/IP network module
Protection level: IP65
Network interface: RJ45
Network transmission rate: 100Mbps
Supported protocols: RTP, UDP, TCP/IP, FTP
Audio format: MP3/WAV
Audio quality: 16-bit CD quality
Sampling rate: 8K~41.8KHz
MIC input sensitivity: 10mV
Frequency response: 317Hz~3.4KHz
Power consumption: 10W
Total harmonic distortion (THD): ≤10%
Signal-to-noise ratio: ≥80dB
Operating temperature: -20℃ to 60℃
Operating humidity: 20%~80% relative humidity, no condensation
