All Note that the CFR 47 rules state a particular year and edition of CISPR 22 (i.e. see 15.38 for incorporation by reference documents). It is that year and edition that is accepted. Third Edition CISPR22 1997 is incorporated into the allowed measurement procedures under 15.38. Any other edition or year would either have to be included in the list in 15.38 or included by an FCC policy document. I know of none that include any CISPR 22 edition or year than the 1997 version. So, be careful when trying to use later versions, it may turn around and bite you.
Also note that far too often labs and manufacturers try to use EN55022 as an ‘alternative’ to CISPR22 1997. EN55022 is not accepted by the FCC so it should not be used as a test method – regardless of how close or similar it may or may not be. Still, for FCC, regardless of what a measurement standard says, and regardless of what measurement standard is used, the rules always win in a battle of what is or is not done. The rules say an accessory must be commercially available. This generally deals either DoC’d or certified devices but the statement is in CFR47 15.31(i)and (j) and it does not specify class A or class B devices. Any test setup associated with an FCC authorization process would have to include commercially available accessories. Of course then you get into what is commercially available. But let’s not go thereJ Dennis Ward Director of Engineering American Certification Body Certification Resource for the Wireless Industry http://www.acbcert.com 703-847-4700 fax 703-847-6888 direct - 703-880-4841 From: [email protected] [mailto:[email protected]] On Behalf Of Ron Pickard Sent: Thursday, September 15, 2011 9:40 AM To: Sundstrom, Michael Cc: [email protected] Subject: RE: [PSES] Test Accessories per ANSI C63.4 or CISPR 22 Hi Micheal et al, Actually, it’s the FCC that accepts CISPR 22 data. Anyway, CISPR 22:2008 refers to that equipment as associated equipment, but falls short of defining it as you were searching for. And, that raises a pet peeve of mine in the lack of consistency in naming conventions from standards organization to standards organization. For example, in the 301489 series of standards, ETSI identifies that equipment as ancillary equipment. In other standards, I’ve seen it referred to as support equipment or other equipment (I’m sure there are others). This isn’t a big deal by any means, but it would be nice if that equipment were described the same way across standards writing bodies. Best regards, Ron From: Sundstrom, Michael [mailto:[email protected]] Sent: Thursday, September 15, 2011 9:12 AM To: [email protected] Subject: Re: [PSES] Test Accessories per ANSI C63.4 or CISPR 22 I always thought: ANSI C63.4 was called out in FCC 47CFR15 (107/109) and since CISPR 22 accepts FCC data that this was the logical path from ANSI to any FCC or CISPR requirement. Was it that FCC now accepts CISPR data? Michael Sundstrom OHD / TREQ Dallas Electronic Lab Analyst, EMC Lead 2170 French Settlement Rd, Suite B Dallas, Texas 75212 (214) 579 6312 (940) 390 3644c KB5UKT Albert Einstein once said, "The definition of insanity is doing the same thing over and over again and expecting different results". From: Bill Stumpf [mailto:[email protected]] Sent: Thursday, September 15, 2011 11:00 AM To: [email protected] Subject: Re: [PSES] Test Accessories per ANSI C63.4 or CISPR 22 Grace, See FCC Part 15.31(j) – “The accessories or peripherals connected to the device being tested shall be unmodified, commercially available equipment.” I’m not aware of any similar text in CISPR 22 Bill From: Grace Lin [mailto:[email protected]] Sent: Thursday, September 15, 2011 9:55 AM To: [email protected] Subject: [PSES] Test Accessories per ANSI C63.4 or CISPR 22 Dear Members, The last sentence of Section 5.10.9 (Central ontrol units) of ANSI C63.10-2009 states "The accessories or peripherals connected to the device being tested shall be unmodified, commercially available equipment." Is there any similar wording in ANSI C63.4 or CISPR 22? I am looking for the similar wording of "commercially available equipment" to convince (argue with) someone. Thank you very much for your time and look forward to your help. Best regards, Grace Lin - ---------------------------------------------------------------- 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://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. 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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://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. 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://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. 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]>
