LVM G3 Hybrid Data Concentrator
Low Voltage Manager G3 Hybrid is a data concentrator unit for advanced metering infrastructure in low-voltage networks. Installed in MV/LV substations, it connects smart meters with the Head-End System to ensure reliable meter data collection, remote management, and continuous network monitoring.
Overview
LVM G3 Hybrid combines G3 PLC and 868–915 MHz RF communication to improve meter reachability in complex LV networks. Featuring secure architecture, versatile uplink interfaces (gRPC, MQTT, SFTP), and cellular or Ethernet connectivity, it enables scalable, future-ready smart grid operations and simplified meter fleet management.
Features
Combines G3 PLC over low-voltage networks with RF communication in the 868–915 MHz range. This dual approach maximizes meter reachability, avoids single-point communication failures, and guarantees stable data collection even in challenging distribution network conditions.
Seamlessly connects with Head-End Systems (HES) via GPRS, 3G, 4G cellular, or Ethernet. It supports flexible application interfaces including gRPC, MQTT, SFTP, and TCP/IP private socket ports for effortless integration into both new and legacy AMI architectures.
Efficiently aggregates meter data, handles event logs, and supports remote firmware upgrades for both the concentrator and connected smart meters. Equipped with "Last Gasp" emergency notification in case of mains power failure.
Details
Technical specifications
Network Type
Direct 3 phase 4 wires
Semi-Direct 3 phase 4 wires
Indirect 3 phase 4 wires
Communication
Application protocol
DLMS/COSEM (according to IEC 62056-6-1 for smart meters);
gRPC, MQTT, SFTP, TCP/IP (for Head-End System communication).
Communication technology
Downlink (to Smart Meters): G3 Hybrid PLC/RF (CENELEC A & FCC bands PLC; 868–915 MHz RF).
Uplink (to HES): Cellular (GPRS, 3G, 4G) or Ethernet.
Local/Physical: Optical port (EN 62056-21), 2x Ethernet ports (10/100M + RS-232), 16-pin GPRS adapter.
Other characteristics
Environment protection
IP20 (wiring compartment) / IP41 (circuitry compartment);
Class II protective class (EN 62052-11).
Dimensions
H 230 x W 140 x D 65 mm
H 317.5 x W 1800 x D 82 mm
Operating conditions
Operation: -25°C + 70°C
Operating Humidity: 25–90% RH @ 50 °C (non-condensing)
Max. 2 000 m above sea level