Several academic and technical papers explore the practical implementation and challenges of this standard:
IEC 61869-9: The Backbone of Digital Substation Communication iec 61869-9
In an IEC 61869-9 substation: You plug an Ethernet cable into a switch. You configure the relay to listen to the multicast address of the SAMU on the relevant feeder. Done. The same raw data stream is simultaneously feeding the main protection, the backup protection, the revenue meter, the fault recorder, and the synchrophasor unit. Several academic and technical papers explore the practical