EN
The QCJZQ-I three-phase DCU retains the full range of multi-mode communication options: 4G/GPRS/Ethernet uplink plus PLC/wireless/RS485 downlink channels. It supports installation of up to 200 energy meters. As a robust central data collector built for three-phase power networks, it executes automated meter data collection, secure local data archiving, and round-the-clock power parameter monitoring.
High-Density Grid Coordination: Robustly scaled to handle a massive downlink fleet of up to 200 distinct energy meters, conforming to universally rigorous DLMS/COSEM communication protocol rules.
Industrial Ruggedized Enclosure: Enclosed within a heavy-duty IP54 weather-resilient casing (176×135×116mm, Gross Weight: 4kg) designed to operate smoothly across tough environmental thermal margins from −25°C up to +65°C.
Cryptographic Data Vault: Fortified with an elite multi-level authorization algorithm and AES 128-bit chip-level encryption, ensuring all uplink pipelines (4G/GPRS/Fiber Optic/Ethernet) remain immune to external intrusion.
1. Meter management and schedule tasks
2. Data collection, storage, and transmission
3.GPRS/3G/4G/Ethernet/fiber optic for uplink communication to the master station.
4. Multiple downlink communication channels (PLC/RF/combo PLC+RF/RS485) to the energy meter.
5. Automatic self-test and generating exception event reports.
6. Local and remote upgrade
7. Multi-level security and AES 128-bit encryption.
8. Compatible with DLMS/COSEM protocol and multi-protocols.
9. Support gateway and DCU mode.
10. Save data on power-off.
11. Self-checking and recording anomaly information
12. Real-time clock calibration function.
| Specifications | QCJZQ-I | |
| Accuracy | Active | 1.0 |
| Reactive | 2.0 | |
| Vollage | Rated current | 3X57.7/100V,3X220/380V,3X230/240V,3X240/415V |
| Range | 0.8Un-1.2Un | |
| Limit | 0.7Un-1.3Un | |
| Frequency | 50Hz/60Hz | |
| Basic Current(lb) | Range | 3X5A,3X10A |
| Maximum Current(lmax) | Range | 3X40A,3X60A,3X80A,3X100A |
| Starting Current | 0.4%lb | |
| Display | Type | LCD |
| Digit | 6+2 | |
| Power Consumption |
Voltage Circuit | ≤2.0W,10VA |
| Current Girauit | ≤4VA | |
| Communication | Interface | RS485/GPRS/3G/4G/PLC/RF/Ethernet |
| GPRS/CDMA | 9600,8N1 | |
| 485 for reading | 2400,8N1 | |
| 485 for cascading | 9600,8N1 | |
| Standby 485 | 115200,8N1 | |
| Port forsetting parameter | IR:1200,8E1 | |
| PLC | 9600,8E1 | |
| Port for setting | 115200,8N1 | |
| Temperature Condition | Work Temperature | -25℃～+65℃ |
| Storage Temperature | -35℃～+75℃ | |
| Humidity | ≤85% | |
| IP degree | IP54 | |
| Dimension | 176X135X116mm | |
| Weight | Net weight | 2kg |
| Weight | 4kg | |
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