Broadband Dual-Mode Communication Unit (Three-Phase Smart Gateway Meter)
Product Description
Adapted to the three-phase smart gateway energy meter of China Southern Power Grid (CSG), the device is powered by CSG’s Power HarmonyOS and features broadband and wireless dual-mode collaborative communication. Designed for industrial and commercial three-phase electricity scenarios, it enables multi-circuit energy data acquisition, load monitoring, remote meter reading, and command issuance, supporting the intelligent management, control, and energy efficiency analysis of three-phase electrical equipment.

Product Advantages
Supports Interoperability.
Strong anti-interference capability, with the HPLC frequency band well away from power line noise.
Dual-mode redundancy backup, strong channel adaptability, automatic network switching, avoiding communication interruption.
Supports distributed networking and inter-network coordination.
Powered by China Southern Power Grid (CSG)'s Power HarmonyOS, supporting the HarmonyOS ecosystem.
Deeply adapted to CSG protocols, offering high compatibility and plug-and-play convenience.
Supports CSG advanced applications, including transformer district identification and phase recognition.
Low power consumption design, meeting the long-term operation requirements of energy meters.
Broadband Dual-Mode Communication Unit (Three-Phase Smart Gateway Meter)
Three-Phase Smart Gateway Meter
| Modulation Method | OFDM |
| HPLC Operating Frequency Band | 2MHz~12MHz, 2.4MHz~5.6MHz, 0.7MHz~3MHz |
| HRF Operating Frequency Band | 470 MHz ~510MHz |
| Number of Serial Ports | 2 |
| Serial Port Communication Rate | Adaptive 1200bps, 2400bps, 4800bps, 9600bps, 115200bps |
| Operating Voltage | 220VAC (176V~264V) |
| +12V DC (11~24V) | |
| Power Consumption | Static ≤0.4W |
| Dynamic ≤2.5W | |
| Operating Temperature | -40℃~+70℃ |
| Communication Range | Entire distribution transformer area |
| HPLC Anti-Attenuation Performance | >95dB |
| HRF Transmit Power Limit | ≤50mW (e.r.p) |



