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This European Standard specifies the physical layer parameters of a local meter readout system (“Local Bus”) for the communication with and the readout of a single meter or a small cluster of meters via a single battery powered readout device (“master”) which can be connected temporarily or stationary for the communication directly to a meter (i.e. local readout) or via a fixed wiring or a small bus (i.e. remote readout). For generic descriptions concerning communication systems for meters and remote reading of meters, refer to EN 13757-1.