Hi Dean, I believe that the conducted emissions test must be done both ways:
1. to verify 60 Hz at the low voltage range and 2. to verify the lower frequency limit for EN 55022. This is relatively trivial because the tests are not very time consuming, even considering the differences between their setups. But for radiated, I believe that the FCC will take the EN 55022 test as is required by that standard as long as frequencies above 1 GHz are evaluated where applicable. If this were not the case, this entire discussion would be moot. I think the FCC is being pragmatic. The intent of all of this is to ensure that devices do not excesively pollute the environment with EMI. Equipment evaluated to pass either standard will meet the intent of these regs. Regards, Tony ---------- From: Dean Jurgensen To: Tony Fredriksson Cc: treg group; Judd Stewart; PSTC Subject: Re: FCC Class A data vs. EN List-Post: [email protected] Date: Wednesday, November 06, 1996 4:29PM Reply to: RE>>FCC Class A data vs. EN55022 Tony, What about: 1) The electrical rating differences (i.e. 120 V, 60 Hz vs. 230 V, 50 = Hz); and 2) The test methodology differences (i.e. ANSI C63.4 vs. CISPR = 22/EN55022/CISPR 16); for conducted and radiated emissions respectively. Just a thought. Regards, Dean Jurgensen NORTEL, Calgary [email protected] -------------------------------------- List-Post: [email protected] Date: 96/11/4 1:21 PM To: Dean Jurgensen From: Tony Fredriksson ----- E X T E R N A L L Y O R I G I N A T E D M E S S A G E ----- Judd, I believe that is is the other way around. EN 55022 data is accepted for FCC Class A verification or FCC Class B Certification or Declaration of Conformity. The only modification is that if your equipment must be scanned above 1 GHz if you have an oscillator fundamental frequency of 108 MHz or greater. I do not believe that FCC Class A or B data can be used to verify compliance with Euro regs. Therefore, the best approach to use is to do the EN 55022 test. Has anyone recently heard otherwise? Regards, [email protected] ---------- From: Judd Stewart To: PSTC Subject: FCC Class A data vs. EN5502 List-Post: [email protected] Date: Friday, November 01, 1996 5:31PM Hello to all! I have a question concerning the applicability of data. Assume a ITE product is Verified FCC Class A and is being readied for marketing in the EU. (the unit is compliant with EN60950, notified body confirmed) Is the (FCC A) data package acceptable as being compliant with EN55022? = That is, can I use that data set to support my claim of compliance with = EN55022? One of the system engineers heard this on the grapevine and I rather = doubt it. I think the unit will need the full EN55022 data set. Thanks for the response in advance. Judd Stewart 619.552.5581 ------------------ RFC822 Header Follows ------------------ Received: by nmisq2.miss.nt.com with SMTP;4 Nov 1996 13:15:50 -0500 Received: from ruebert.ieee.org by corpgate.rich.nt.com with SMTP (PP); Mon, 4 Nov 1996 18:08:45 +0000 Received: (from daemon@localhost) by ruebert.ieee.org (8.7.5/8.7.3) id = LAA16015 for emc-pstc-list; Mon, 4 Nov 1996 11:46:24 -0500 (EST) From: Tony Fredriksson <[email protected]> To: PSTC <[email protected]>, Judd Stewart <[email protected]= m> Subject: RE: FCC Class A data vs. EN5502 List-Post: [email protected] Date: Mon, 04 Nov 96 08:38:00 PST Message-Id: <[email protected]> Encoding: 46 TEXT X-Mailer: Microsoft Mail V3.0 Sender: [email protected] Precedence: bulk Reply-To: Tony Fredriksson <[email protected]> X-Resent-To: Multiple Recipients <[email protected]> X-Listname: emc-pstc X-List-Description: Product Safety Tech. Committee, EMC Society X-Info: Help requests to [email protected] X-Info: [Un]Subscribe requests to [email protected] X-Moderator-Address: [email protected]
