The Varaahi Data Concentrator Unit (DCU) acts as an intelligent intermediary between a group of smart meters and the Head-End System (HES). It periodically polls connected smart devices—including meters and TMDS—to collect and aggregate data, events, and alarms. Equipped with separate ports for meter interfacing and control center communication, the DCU ensures seamless, real-time data flow across the network.
The DCU supports advanced features such as data compression, encryption, and error correction, guaranteeing reliable and secure transmission. It allows operators to monitor grid operations, identify potential faults, and respond to issues such as power outages or equipment failures before they escalate. With RTC synchronization, backup power support, and firmware upgrade capabilities, the DCU provides efficient group management and remote configuration of smart devices.
Key Advantages of VAR-WF-GW
- • Real-Time Monitoring: Collects, aggregates, and transmits smart meter and sensor data to HES.
- • Secure Communication: Data compression, encryption, and error correction ensure reliability.
- • Remote Management: Supports firmware upgrades, device discovery, and configuration either selectively or group-wise.
- • Backup Power Support: Ensures RTC operation and uninterrupted data collection during power interruptions.
- • Event & Data Storage: Stores group data and events locally for programmed periods, ensuring continuity.
Technical Specifications
- • Connection Type: Three Phase Four Wire
- • Data Storage Interval: 5 minutes for data and event logging
- • Communication Frequency: Band: 840/900-928 MHz; TX power up to 27 dBm; RX sensitivity -105 dBm
- • LAN & Wireless: 2.4 GHz / 5 GHz Wi-Fi, Zigbee Dual Band
- • IP Protection: IP 65
- • Protocol Support: IPv6, compliant with IS 16444
- • Humidity: 10% to 70%
- • Temperature Range: 0°C to 55°C
- • Frequency: 50 Hz ± 5%
- • Power Consumption: Minimum 8W, Maximum 30W
The VAR-WF-GW Gateway / DCU provides a reliable, secure, and scalable interface between smart meters and the central control system, enabling intelligent energy management for utilities, commercial networks, and industrial grids.