What communication protocols does the HM8930 7197 Norax 3 support?
The Norax 3 supports multiple communication methods including an optical port, serial port RS-485 (optional), and Wireless M-Bus 868 MHz (EN 13757) (optional). The primary communication protocol used is DLMS/COSEM.
From the official Apator HM8930 7197 Norax 3 Electricity Meter manual, page 1
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