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IP broadcast + speaker
DH-S30L/DH-S40L/DH-S60L
SIP SL series of public address systems
Comprehensive security audio terminals; the wired models are suitable for stable networking in new construction projects, and the wireless models address wiring issues in existing facilities. Key features include compliance with national SIP standards, integrated security systems, 24/7 protection, and high-definition voice transmission over long distances. These products are the industry standard for outdoor security broadcasting and emergency communication in schools, campuses, and smart cities, offering a balance of performance, cost, and ease of installation.
Features
Rectangular aluminum alloy enclosure, with improved acoustic performance, higher power, more stable installation, and a 30% increase in sound transmission distanceIP/SIP digitization, eliminating the need for external amplifiers, supporting integration with security systems, enabling remote maintenance, and reducing wiring costs by 70%Wired model: Low latency, high stability, the first choice for new projects; Wireless model: 4G without wiring, perfect for old renovations or remote locationsWideband voice transmission, with a coverage radius far exceeding that of ordinary wall-mounted speakers, meeting the needs for large-scale security announcementsBuilt-in echo cancellation, anti-hall effect, and noise reduction algorithms, ensuring clear human voices in noisy environmentsBuilt-in echo cancellation, anti-hall effect, and noise reduction algorithms, ensuring clear human voices in noisy environmentsSupports remote volume adjustment, scheduled tasks, and audio loop playback, operating 24/7 with automatic remote fault detectionSIP/ONVIF/multicast is fully digital, supports video integration, and does not require a power amplifierSupports TCP/IP network broadcasting, scheduled broadcasting, zone-specific broadcasting, real-time broadcasting, and alarm broadcasting; can be integrated with emergency broadcasting systems, suitable for public broadcasting scenarios such as campuses, parks, scenic areas, and communities
| Processor | High-performance embedded System-on-Chip (SOC) processor |
| Operating system | Embedded LINUX operating system |
| Network | Wired |
| Rated power | 30W/40W/60W |
| Audio input | 1 channel (optional) |
| Audio output | Built-in 30W/40W/60W speakers |
| Compression standard | G.711, G.713, GSM, PCM |
| Compression bitrate | 32kbps/64kbps/128kbps |
| Sound quality | Professional echo cancellation and noise suppression (optional) |
| Storage | 128MB |
| Network Protocol | SIP, TCP/IP, DNP |
| Interconnection Interface | 3 items |
| Power supply | DC 12V |
| Power consumption | ≤60W |
| Appearance Dimensions | 115mm×160mm×490/620/770mm |
| Material | Metal Paint |
| Operating Temperature | -30℃~75℃ |
