Network PA System – 4G Network Sound Column (Aluminum, 15-60W, Linux)

Features:

- White sprayed all‑aluminum alloy shell and aluminum mesh, rust‑proof, sleek and compact design.
- Column fixing plate made of custom‑molded ABS integrated plastic plate, never mildews, extends service life.
- Adopts domestic integrated chips and Linux system, excellent stability, security, portability, flexibility, incomparable to single‑chip solutions.
- CPU: ARM Cortex A7 @ 900MHz.
- Audio Codec: Supports software codec, compatible with G.711, G.726, ADPCM, and audio 3A (AEC/ANR/AGC).
- 1×4G network module, supporting mainstream operator IoT cards (China Telecom, China Mobile, China Unicom).
- Standard 1×10/100M RJ45 network interface, supporting LAN and WAN deployment.
- Adopts file playback cache mechanism to save traffic, supports high‑compression encoding format for paging, and enables mobile APP wireless broadcast with unlimited regions, quantities, distances, easy operation.
- Built‑in 1‑channel network hardware audio decoding module for real‑time/timed music playback.
- 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.
- GPRS working frequency band: GSM/GPRS/EDGE 850/900/1800MHz.
- Background hardware resource monitoring: CPU/memory usage ratio and continuous running time.
- Supports remote upgrade of WAN standalone and batch units, facilitating efficient and fast customer service.
- Powered by DC12V direct current, with optional external DC12V adapter or solar power supply.
- High‑efficiency Class D digital amplifier with overload, overvoltage, overheating, DC protection.
- Built‑in 5.25‑inch high‑sound‑pressure full‑range speaker unit, high sensitivity, clear and bright sound.
- Rated power: 15W/30W/45W/60W.
- Standby power <10W, meeting national environmental protection and energy‑saving certification.
- Supports DHCP, compatible with routers, switches, Internet, multicast, unicast, any network topology.
- 15KV ESD protection, built‑in network isolation and lightning protection.
- Digital networked product with easy expansion, free from geographical restrictions, no need for additional server room equipment.

This **IP Network PA System** 4G sound column delivers high‑fidelity outdoor audio with cellular connectivity, flexible power options, and intelligent network management.

Technical Specifications:

(Refer to product datasheet for detailed ratings.)

In summary, this **IP Network PA System** 4G network sound column with all‑aluminum construction, wide‑power selection (15‑60W), and comprehensive protection is the ideal choice for remote campuses, rural areas, construction sites, and outdoor public spaces requiring reliable IP broadcasting without wired network infrastructure.