I have 2 questions on the actual operation of a PLC network, the manufacturers' websites are not very precise on these points ... so if someone uses one here, they may have the answer (s). .
a) what is the actual practical scope? We can read in the 300m here or there but it is the maximum theoretical range, what is it in reality? The length of an RJ45 network cable is limited to 100m ... for comparison ...
b) does the signal pass the electric meter or not? The manufacturers say not (probably to reassure people ???) ... I have a doubt because I do not see what physically could prevent the passage of the signal ... The wiki page gives information on this subject but without citing the source:
https://fr.wikipedia.org/wiki/Courants_ ... s_en_ligne
↑ The signal is stopped by the digital counters. But the signal is likely to propagate beyond a “blue” or Foucault counter (electromechanical counters).
Susceptible to? What does that mean? Yes? No? May be? In short, not very precise as an answer ...
I can understand that a communicating digital meter stops the PLC signal (to filter it and replace it with its own, of course ...) but all the electronic meters are not communicating ... so ??
This serious-looking article says no, the signal isn't stopped: http://www.01net.com/actualites/pirater ... 33462.html
There is even a very complete .pdf file: on CPL security based on Qualcomm that it would be fairly easy to hack (provided you have the CPL plug in hand to read your DAK) ...
If anyone here uses PLC it would be nice to do some "real" tests. The thank you box
Subsidiary question: can the signal pass a neighborhood transformer?