For over 40 years now, we have fought with 3rd party peripherals that do not comply with the Radiated and/or Conducted emissions requirements. We would search, purchase, and test dozens of monitors, printers, etc. with the hope of finding something that passes so we can generate an EMC test report that shows our product passes. Some, if not most, of the peripherals we test fail, or at best, pass with very little margin (within the measurement uncertainty). But that is life, as I am told.
Now I work for a company who not only manufactures a great product, but sells them as a configuration which includes the peripherals. Some of these peripherals are very sophisticated devices to which we have no alternative. When our EMC test fails because of a buy/sell peripheral, what can we do? Some say as long as we document the failing signal is from the peripheral and is not affected by our product, we can just document it in our reports; then we can sell or resell that peripheral with our product. But others would say, No, you cannot sell a product you know is not compliant. But then again, anyone can go to their local electronic store and buy one of these failing peripherals and integrate it themselves without issue. This is becoming more and more common these days. We asked the peripheral manufacturer for proof of compliance and they sent me a 10 year old EMC report showing they tested their peripheral stand-alone, without any I/O cables connected, and with the power cord tucked under the turntable/ground plane to minimize the emissions. When we duplicate their setup, we get similar results, but as soon as you connect a cable to it, it fails. We are a small company in comparaison, so we try to let them know of the failure but they do not take us seriously. So can we resell peripherals we know are not compliant? I know this is a taboo subject. Any insight? Thanks, The Other Brian - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to [email protected] All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] For policy questions, send mail to: Jim Bacher: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
