Plug-In Power Line EMI Adapter MSN17

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MSN17 ships with these accessories

Specify plug type of your choice.  With no suffix MSN17 will ship with the cable with U.S. plug

MSN17 plug-in power line EMI adapter provides complete galvanic separation from high mains' voltages but a straight path for high-frequency signals so that you can connect your sensitive instrument to live power lines for analysis and quantification of electromagnetic interference and power line communication. MSN17 can measure EMI between any connections in a power outlet.  It has a switch between differential (DM) and common (CM) modes in the outlet.   It also allows measurements of EMI without creating ground loops using any oscilloscope or a spectrum analyzer, grounded via power outlet or not.

Among applications for MSN17 EMI Adapters are:

  • Conducted emission measurements

  • Designed to work with SEMI E176 Standard and IPC-A-610 EOS section

  • EMI audits, diagnostics and troubleshooting

  • Power Line Communication (PLC) Standards:  
    Homeplug AV and AV2 -- Wave 2 -- CENELEC EN50065 (all bands) -- IEEE 1902.2 -- ARIB (Japan) -- FCC

MSN17 is CE approved: IEC61010-1 (Third Edition), 2010; IEC 61010-2-031.


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All specifications are subject to change without notice
MSN17 Ordering Information
Typical Data with MSN17.  Click on Performance button on the top for data for PLC Standards
MSN17 Frequency Response
EMI from Switching Power Supply
HomePlug AV2 PLC Spectrum
Application Notes
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Technical Articles
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What is EMI?  A formal definition of Electromagnetic Interference is that it is a malfunction of equipment caused by excessive high-frequency signals, either radiated (via air), or conducted (via wires).  Often it is also called RFI - Radio Frequency Interference.  Most conventionally, EMI is understood as undesirable high-frequency signals, and EMI filters as devices that suppress such signals while preserving the "good" ones.         

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