IP broadcast + speaker
DH-M20
Sound column SIP+public address intercom terminal
Industrial-grade SIP network-directed sound columns, which serve as the core audio components of security audio-video integration systems. These devices are characterized by IP-based networking, round-the-clock protection, and high-definition voice amplification, and are designed for security emergency broadcasting and public voice guidance applications.
Features
Supports audio input with automatic switchingSupports local area network, internet, and WiFi/4G hybrid networkingSupports video linkage (optional)Supports broadcasting via 3 external 10-pin connectorsSupports simultaneous output from 2 channelsFull-duplex voice call (optional)Supports voice announcement broadcasting and file broadcastingSupports SIP protocol, IP network architecture, across network segments and routersMonitoring function (optional)Broadcast announcement functionRemote control and calling via mobile appWide voltage operating rangeAutomated voice playback triggered by human presence, with remote voice downloads availableSupports TCP/IP network broadcasting, scheduled broadcasting, zone-specific broadcasting, real-time broadcasting, and alarm broadcasting; can be integrated with emergency broadcasting systems, suitable for use in campuses, industrial parks, tourist attractions, communities, and other public broadcasting scenarios
| Processor | High-performance embedded System-on-Chip (SOC) processor |
| Operating system | Embedded LINUX operating system |
| Network | Wired/WiFi/4G connectivity |
| Rated power | 20W |
| Audio Input | Channel 1 (Optional) |
| Audio Output | Integrated 20W Speaker |
| Compression Standard | G.711, G.713, GSM, PCM |
| Compression bitrate | 8kbps/32kbps/64kbps |
| Sound quality | Professional echo cancellation and noise suppression (optional) |
| Storage | 128MB |
| Network Protocol | SIP, TCP/IP, DNP |
| Interconnection Interface | 1 piece |
| Power supply | DC 12V |
| Dimensions | 93mm×83mm×320mm |
| Material | Metal paint + ABS material + aluminum-magnesium alloy coating |
| Operating temperature | -30℃~75℃ |
