Power Line Communication (PLC)

PLC signal on power line as seen using MSNxxx EMI Adapters

HomePlug AV2 PLC Spectrum

HomePlug AV2 Spectrum

Power line communication (PLC) utilizes data transmitted over power lines by overlaying regular power with high-frequency signals.  It is a component of "Smart Power" and is quite common in the industry.  OnFILTER makes several products for PLC:

Power line EMI adapters help to observe PLC signals on power lines using regular oscilloscopes or spectrum analyzers by completely blocking 50/60Hz AC power voltage and by providing galvanic separation between power lines and your instrument.  Our MSN series of adapters satisfies all major international standards for power line communication.  MSN15 and MSN17 adapters offer the broad frequency range - in excess of 200 MHz - and cover HomePlug AV, HomePlug AV2, IEEE 1901, ARIB, all CENELEC bands, and others.

CleanSweep® AC EMI filters and filtered PDUs effectively block PLC signals which is helpful in case of collision of the signals and for enhancing data security.  If power line is too noisy due to EMI from equipment, CleanSweep® EMI filters can help to "clean it up" for better signal quality.  

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