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4.2 M-Bus wireless radio (optional)
The integrated radio module is an interface for communication of proto-
cols with Diehl Metering radio receivers. The communication protocol is
preset.
Note on radio function
The radio function is switched off on delivery and activated auto-
matically when water is detected in the meter. The radio function
remains permanently active after a period of continuous opera-
tion (>3 hours) with water.
The integrated radio interface is specied with:
Unidirectional transmitting direction
Data timeliness: Online - no time delay between data logging and
data communication
The integrated radio accesses always the actual meter readings
Transmission frequency: 868 MHz
Various Diehl Metering receivers are available for receiving the proto-
col (e.g. Bluetooth, GPRS, LAN, …)
Encrypted protocol: Open Metering Standard
Reading modes: Walk-By, Drive-By, Fixed-Network
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