I believe that the rules are clear that a dc powered device that receives power from an ac/dc converter or other power source that is connected to the mains must be tested.
> ---------- > From: Jim Eichner[SMTP:[email protected]] > Reply To: Jim Eichner > Sent: Tuesday, August 11, 1998 12:36 PM > To: 'EMC-PSTC - forum' > Subject: RE: Conducted Emission test on DC powered Equipment > > In this discussion I am assuming we are talking about unintentional > radiators under Subpart B. > > My take on it is that ANSI C63.4 is called out for methods only and that > the tests which are mandatory and the limits for those tests are > dictated only by Part 15. If you buy that argument, then there are only > conducted emissions tests on ports that connect to "the public utility > (AC) power line" (section 15.107a) and b)). Furthermore, there is a > paragraph that specifically excludes products that operate off of > batteries only (section 15.107f)). > > Comments/rebuttals??? > > Regards, > > Jim Eichner > Statpower Technologies Corporation > [email protected] > http://www.statpower.com > Any opinions expressed are those of my invisible friend, who really > exists. Honest. > > > > > > > -----Original Message----- > > From: WOODS, RICHARD [SMTP:[email protected]] > > Sent: Tuesday, August 11, 1998 5:59 AM > > To: [email protected] > > Subject: RE: Conducted Emission test on DC powered Equipment > > > > The FCC part 15 rules use the methods of ANSI C 93.4 and that standard > > is > > very clear that all types of power ports are subject to conducted > > emissions > > testing. > > > > > ---------- > > > From: [email protected][SMTP:[email protected]] > > > Reply To: [email protected] > > > Sent: Monday, August 10, 1998 2:31 PM > > > To: [email protected] > > > Subject: Conducted Emission test on DC powered Equipment > > > > > > > > > > > > > > > Hello everyone, > > > > > > Does anyone know if there is any conducted emission test required ( > > In > > > Europe and in the US) on DC powered equipment ( through a Battery) > > such as > > > -48VDC Telecom equipment, something like the En55022 but for DC > > powered > > > products? > > > > > > You help is highly appreciated. > > > > > > Thank you all, > > > > > > > > > Sincerely, > > > > > > > > > Sarmad Albanna > > > Hughes Network Systems > > > > > > > > > > > > > > > > > > > > > --------- > > > This message is coming from the emc-pstc discussion list. > > > To cancel your subscription, send mail to [email protected] > > > with the single line: "unsubscribe emc-pstc" (without the > > > quotes). For help, send mail to [email protected], > > > [email protected], or [email protected] (the list > > > administrators). > > > > > > > --------- > > This message is coming from the emc-pstc discussion list. > > To cancel your subscription, send mail to [email protected] > > with the single line: "unsubscribe emc-pstc" (without the > > quotes). For help, send mail to [email protected], > > [email protected], or [email protected] (the list > > administrators). > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], or [email protected] (the list > administrators). > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], or [email protected] (the list administrators).
