For the USA, any electrical signal above 9 kHz meets the requirement to be tested. I think we will find similar for the EU. EN 300 330, or 300 440, or something like that. It has power and a switch and generates frequencies above the lower limit - it gets tested. ps. that means the device will need to be activated into its operating condition for testing. But if there is an exclusion list... I'm very interested!
>________________________________ > From: Scott Douglas <[email protected]> >To: "[email protected]" <[email protected]> >Sent: Friday, July 12, 2013 9:47 AM >Subject: EMC Required? > > >Hi folks, > >Consider a simple circuit. IR diode, a transistor or two, some resistors >and caps. Receives input from IR remote, converts to electrical and >sends down a wire. No clock in the thing so you could call is passive. >But does it need EMC testing for US or EU? The IR signal will be in the >35-50 kHz range so pulses down the wire will be the same. Does this make >it fit within the realm of EMC required? The device is sold by itself >without other products, but is always connected to something else in >use. Something else could be a wide variety of anything. I think of it >like a stand-alone audio speaker. Purely a passive device that is driven >by signals that fall within the EMC required realm. So do you do EMC or not? > >Looking forward to your opinions on this. > >Scott > >- >---------------------------------------------------------------- >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: >http://www.ieee-pses.org/emc-pstc.html > >Attachments are not permitted but the IEEE PSES Online Communities site at >http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used >formats), large files, etc. > >Website: http://www.ieee-pses.org/ >Instructions: http://listserv.ieee.org/request/user-guide.html >List rules: http://www.ieee-pses.org/listrules.html > >For help, send mail to the list administrators: >Scott Douglas <[email protected]> >Mike Cantwell <[email protected]> > >For policy questions, send mail to: >Jim Bacher: <[email protected]> >David Heald: <[email protected]> > > > - ---------------------------------------------------------------- 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: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
