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Network PA System – Internet Telephone & SMS Broadcast Host (1U, 4G, Text‑to‑Speech)
Product Function Description:
1. High‑end aluminum 1U black brushed panel, cabinet style installation, beautiful and elegant.
2. Embedded cloud broadcasting terminal with embedded software for use.
3. The device is designed using embedded computer technology and DSP audio processing technology.
4. Using domestic chips and Linux system, with stable performance and fast operation.
★ 5. Can access 1 mobile phone card.
★ 6. Administrators authorize operator numbers on the local machine or platform, and department leaders can use authorized mobile phone numbers or landline phones for phone/SMS broadcasting.
★ 7. All incoming numbers must be on the authorized whitelist, and each number can broadcast phone calls and short messages to the entire area or the corresponding area.
★ 8. Supports short message text‑to‑speech function and phone live streaming function.
★ 9. The priority of phone and SMS broadcasting is higher than the normal broadcasting or custom settings of the area under the jurisdiction of the number.
10. Supports DHCP, compatible with routers, switches, bridge gateways, Internet, multicast, unicast, and any network structure.
11. Built‑in network isolation and lightning protection processing circuit.
1. High‑end aluminum 1U black brushed panel, cabinet style installation, beautiful and elegant.
2. Embedded cloud broadcasting terminal with embedded software for use.
3. The device is designed using embedded computer technology and DSP audio processing technology.
4. Using domestic chips and Linux system, with stable performance and fast operation.
★ 5. Can access 1 mobile phone card.
★ 6. Administrators authorize operator numbers on the local machine or platform, and department leaders can use authorized mobile phone numbers or landline phones for phone/SMS broadcasting.
★ 7. All incoming numbers must be on the authorized whitelist, and each number can broadcast phone calls and short messages to the entire area or the corresponding area.
★ 8. Supports short message text‑to‑speech function and phone live streaming function.
★ 9. The priority of phone and SMS broadcasting is higher than the normal broadcasting or custom settings of the area under the jurisdiction of the number.
10. Supports DHCP, compatible with routers, switches, bridge gateways, Internet, multicast, unicast, and any network structure.
11. Built‑in network isolation and lightning protection processing circuit.
This **network pa system** host enables flexible remote broadcast control via authorized phone numbers and SMS with text‑to‑speech.
Technical Parameters:
1. Network interface: standard RJ45 input.
2. Supported protocols: HTTP, HTTPS, UDP, TCP/IP, RTP, RTSP, RTMP, MQTT, FTP.
3. Audio formats: mp3, wav.
4. Sampling rate: 8K to 48K.
5. Network transmission rate: 100Mbps.
6. Audio mode: 16‑bit, stereo CD sound quality.
7. Audio output interface: 2 RCA sockets.
8. Audio output impedance: 470Ω.
9. Frequency response: 300Hz to 8KHz.
10. Harmonic distortion: THD ≤ 0.3%.
11. Signal‑to‑noise ratio: ≥ 80dB.
12. Working environment temperature: -20℃ to 70℃.
13. Relative humidity: 20% to 80%, non‑condensing.
14. Power consumption: ≤ 15W.
15. Input power supply: AC 220V ± 10%.
16. Product dimensions: 482 × 235 × 50mm.
17. Packaging dimensions: 525 × 310 × 90mm.
18. Net weight: 2.5kg.
19. Gross weight: 3.32kg.
1. Network interface: standard RJ45 input.
2. Supported protocols: HTTP, HTTPS, UDP, TCP/IP, RTP, RTSP, RTMP, MQTT, FTP.
3. Audio formats: mp3, wav.
4. Sampling rate: 8K to 48K.
5. Network transmission rate: 100Mbps.
6. Audio mode: 16‑bit, stereo CD sound quality.
7. Audio output interface: 2 RCA sockets.
8. Audio output impedance: 470Ω.
9. Frequency response: 300Hz to 8KHz.
10. Harmonic distortion: THD ≤ 0.3%.
11. Signal‑to‑noise ratio: ≥ 80dB.
12. Working environment temperature: -20℃ to 70℃.
13. Relative humidity: 20% to 80%, non‑condensing.
14. Power consumption: ≤ 15W.
15. Input power supply: AC 220V ± 10%.
16. Product dimensions: 482 × 235 × 50mm.
17. Packaging dimensions: 525 × 310 × 90mm.
18. Net weight: 2.5kg.
19. Gross weight: 3.32kg.
In summary, this **network pa system** telephone & SMS broadcast host with 4G, whitelist authorization, and priority override is the ideal choice for schools, factories, campuses, and public facilities requiring instant remote paging via phone or message.
