NF C46-904-1*NF EN 61334-4-1:1997 Distribution automation using distribution line carrier systems. Part 4 : data communication protocols. Section 1 : reference model of the communication system.
1997NF C46-904-1*NF EN 61334-4-1:1997 Distribution automation using distribution line carrier systems. Part 4 : data communication protocols. Section 1 : reference model of the communication system.