Agreed (section 15.107f). My point was that the original question from Sarmad Albanna had to do with -48V battery installations, and for a real battery supply, not a line-powered converter, the FCC Part 15B reg's don't call up a test.
Of course, as others have pointed out, there are many telecom standards that do apply, and for CE-marking the EN's may call out conducted on all ports (not just AC or DC power supply, but signal lines etc.). 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 11:42 AM > To: 'EMC-PSTC - forum'; 'Jim Eichner' > Subject: RE: Conducted Emission test on DC powered Equipment > > 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). --------- 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).
