Features

• White aluminum alloy enclosure with medium-gray front panel, and a recessed step rainproof structure at the bottom;
• 1×4G network module, supporting mainstream operator IoT cards or SIM cards (China Telecom, China Mobile, China Unicom), realizing the integration of three networks;
• 1×RJ45 wired network communication interface;
• Adopts Linux system, featuring excellent stability, security, portability and flexibility, which is incomparable to ordinary single-chip solutions. It supports open-source data, access to third-party platforms and devices, open-source service interface protocols, and access to any third-party platforms;
• CPU: ARM Cortex A7 @ 900MHz, with 32KB I-Cache, 32KB D-Cache, and 128KB L2 Cache;
• Audio Codec: Supports software codec, compatible with G.711, G.726, ADPCM, and audio 3A (AEC/ANR/AGC);
• Receives platform commands and audio signals, supporting remote volume control via the platform;
• Supports latitude and longitude geographic location information, which can display the terminal position on the APP/platform;
• 4G working frequency bands: FDD-LTE B1/B3/B5/B8; TDD-LTE B38/B39/B40/B41; HSPA+/WCDMA 900/850/2100MHz; GSM/GPRS/EDGE 850/900/1800MHz; TD-SCDMA B34/B39; EVDO/CDMA1x:BC0;
• Supports status feedback, which can transmit the local playback and working status back to the platform;
• Supports remote upgrade of the device via the platform;
• Supports zone and group broadcast functions of the device via the platform;
• Powered by DC24V, with a power supply current above 5A;
• Built-in Class D digital stereo power amplifier circuit, with power output up to 2×50W/8Ω;
• Built-in power supply lightning protection circuit, with a lightning protection level up to 4KV for higher reliability;

Technical Specifications

• Network Interface: RJ45; 4G: Push-pull card slot;
• Supported Protocols: HTTP, HTTPS, UDP, TCP/IP, RTP, RTSP, RTMP, MQTT, FTP;
• Audio Formats: mp3, wav;
• Sampling Rate: 8K – 48K;
• Network Transmission Rate: 100Mbps;
• Audio Mode: 16-bit stereo CD quality;
• Output Frequency: 60Hz – 18KHz;
• Rated Power: 8Ω×2*50W;
• Harmonic Distortion: ≤1%;
• Signal-to-Noise Ratio (SNR): ≥80dB;
• Input Power: DC24V, maximum support DC26V, current above 5A;
• Power Consumption: ≤120W;
• Installation Type: Bracket-mounted installation;
• Shell Material: Aluminum alloy;
• Operating Ambient Temperature: -20℃ ~ +60℃;
• Relative Humidity: 20% ~ 80%, non-condensing;
• External Dimensions: 373152100mm;
• Weight: 2.4kg;