In message <003001c65cb8$0eb3a570$4001a8c0@CompaqPresarioD>, dated Mon, 10 Apr 2006, Dward ATCB <dw...@atcb.com> writes >Your understanding is not correct. A USB device plugged into any other >device that is directly connected to the AC mains will need an oine >conducted testing. Several examples are: A USB dongle that gets its >power from the USB port and is plugged into a laptop where the laptop >gets its power from the AC mains will require conducted emissions.
'Conducted emissions' on WHICH CABLE? The mains cable of the power supply or the DC cable from the power supply to the load equipment? Or both? -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
