PLC Solution of A residential Building With Distributed Ammeters : Phase Two

Project Intro: 
  Building number 7, with 7 floors, 3 stairways and distributed power meters. There are two ammeters for two units on each floor.
  Place the PLC Router under each stairway, with one port to the internet, and the other port to coupling line. 
  It is required that internet access must be available in all end user rooms without any damage to interior decoration. 
Solution: 
  Adopting electromagnetic Induction for signal injection and avoiding direct contact with electric power.