CODA11 data concentrator provides communication between AMI center and electricity meters. Communication between concentrator and electricity meters is carried over the low-voltage distribution network (PLC). Communication between concentrator and AMI center is carried over GPRS/3G network or Ethernet port using TCP/IP protocol. CODA11 provides reading, parameterization and load management, either automatically by a pre-defined schedule, or on request of the AMI center. Collected data is stored in the concentrator’s permanent memory and forwarded to the AMI center. CODA11 automatically detects newly installed meters on the PLC network and maintains active meters list. Concentrator is equipped with ports for local communication with meters, as well as for communication with external devices.