But how is a PC test equipment in any sense of the word? The most a PC can be is an automated controller of test equipment. Since it can be used for any number of other applications, it is not test equipment, right? Unless the PC manufacturer designed that PC so that it could only be used for one specific control purpose.
Ken Javor Phone: (256) 650-5261 From: dward <dw...@pctestlab.com> Reply-To: dward <dw...@pctestlab.com> Date: Thu, 18 Feb 2016 12:13:32 -0800 To: <EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? The answer is - look at what is not required to be tested and what is exempt from Part 15. For example, when was the last time a spectrum analyzer was required to meet Part 15 digital device requirements? Or when was the last time that Scientific test equipment was required to meet Part 15 Digital Device requirements? Never. The reason is that the concept of test equipment is for all three types listed and not only Medical Test Equipment. One would not want the FCC to list test equipment as ONLY Medical test equipment, that would be unrealistic. Dennis Ward This communication and its attachements contain information from PCTEST Engineering Laboratory, Inc., and is intended for the exclusive use of the recipient(s) named above. It may contain information that is confidential and/or legally privileged. Any unauthorized use that may compromise that confidentiality via distribution or disclosure is prohibited. Please notify the sender immediately if you receive this communication in error, and delete it from your computer system. Usage of PCTEST email addresses for non-business related activities is strictly prohibited. No warranty is made that the e-mail or attachments(s) are free from computer virus or other defect. Thank you. From: Nyffenegger, Dave [mailto:dave.nyffeneg...@bhemail.com] Sent: Thursday, February 18, 2016 11:58 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? This is an interesting point. My interpretation has always been that “test” only applies to “medical” and that the exemption applied to all industrial and commercial equipment. Oh the joys of the English language. If we wrote software like this we’d likely end up with planes crashing into the oceanJ So what is the correct interpretation? -Dave From: Bill Stumpf [mailto:bstu...@dlsemc.com] Sent: Thursday, February 18, 2016 12:13 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Dennis is 100% right. The exemption applies exclusively to products which are industrial, commercial, or medical test equipment. The "test equipment" classification applies to all of these categories, not only medical devices - at least this is my interpretation. So if the digital device is not test equipment, the exemption does not apply. If the exemption applies, it only pertains to the technical requirements of Part 15. The general operation requirements of 15.5 always apply. As to the Class A/B application, you have to look at how the device is marketed. If it is not marketed to the consumer and is not intended to be used in the home, then Class A applies. Bill Stumpf From: dward [mailto:dw...@pctestlab.com] Sent: Thursday, February 18, 2016 11:06 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? In addition to the previous comment I made, it is noted that the FCC defines ISM equipment as “Equipment or appliances designed to generate and use locally RF energy for industrial, scientific, medical, domestic or similar purposes, excluding applications in the field of telecommunication.” So, unless a digital device meets the exemption requirements 15.103 and if it is not a piece of test equipment, it is subject to Part 15. Now then you must look to see if it is Class A or Class B. Dennis Ward This communication and its attachements contain information from PCTEST Engineering Laboratory, Inc., and is intended for the exclusive use of the recipient(s) named above. It may contain information that is confidential and/or legally privileged. Any unauthorized use that may compromise that confidentiality via distribution or disclosure is prohibited. Please notify the sender immediately if you receive this communication in error, and delete it from your computer system. Usage of PCTEST email addresses for non-business related activities is strictly prohibited. No warranty is made that the e-mail or attachments(s) are free from computer virus or other defect. Thank you. From: dward [mailto:dw...@pctestlab.com] Sent: Thursday, February 18, 2016 8:46 AM To: 'Ted Eckert' <ted.eck...@microsoft.com>; 'EMC-PSTC@LISTSERV.IEEE.ORG' <EMC-PSTC@LISTSERV.IEEE.ORG> Subject: RE: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Several issues. First, 15.123 is not the clause exempting devices it is a clause referring to labeling of digital ready devices. Clause 15.103 is for exemption of devices. So, while it may say exempt, unintentional radiator devices are still subject to 15.5 and 15.29 with ‘strong’ recommendation to comply to part 15. (NOTE: 15.5b states “Operation of an intentional, unintentional, or incidental radiator is subject to the conditions that no harmful interference is caused and that interference must be accepted that may be caused by the operation of an authorized radio station, by another intentional or unintentional radiator, by industrial, scientific and medical (ISM) equipment, or by an incidental radiator.” 15.103 main paragraph states, “Although not mandatory, it is strongly recommended that the manufacturer of an exempted device endeavor to have the device meet the specific technical standards in this part.” So to say there are no mandatory EMC requirements is not accurate, as, while being exempt from any specific technical requirement, they are required NOT to interfere etc. It should also be noted that this exemption is ONLY for test equipment, not all digital equipment. NOTE: 15.103c says “A digital device used exclusively as industrial, commercial, or medical test equipment.” It is not saying a piece of medical test equipment and all other industrial or commercial equipment. It is saying industrial test equipment, commercial test equipment or medical test equipment. Also, be careful with the concept of fixed in regards exclusive use in these areas to exemption under 15.103. Exclusive does not mean fixed, it simply means that it is the ONLY area in which it is used, it means it cannot be taken out of the industrial, commercial or medical environment. I would think that test equipment would not be fixed and since the exemption for digital devices in these areas is for test equipment, I doubt if it means fixed. Thanks Dennis Ward This communication and its attachements contain information from PCTEST Engineering Laboratory, Inc., and is intended for the exclusive use of the recipient(s) named above. It may contain information that is confidential and/or legally privileged. Any unauthorized use that may compromise that confidentiality via distribution or disclosure is prohibited. Please notify the sender immediately if you receive this communication in error, and delete it from your computer system. Usage of PCTEST email addresses for non-business related activities is strictly prohibited. No warranty is made that the e-mail or attachments(s) are free from computer virus or other defect. Thank you. From: Ted Eckert [mailto:ted.eck...@microsoft.com] Sent: Thursday, February 18, 2016 6:37 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Hello Michael, Whether or not EMC requirement apply in North America may depend on whether the industrial computer is in a fixed location. Digital devices that are part of industrial equipment are generally exempted. Incorporated devices are fixed in location and there is a general assumption that the environment is such that residential radio receivers, such as televisions, will not be within 3 meters of the equipment. A personal computer that has been ruggedized for use in industrial environments may still be subject to EMC requirements if it is movable. An industrial laptop, for example, may be used in a factory part of the time and in an office environment the rest of the time. I believe the key word is “exclusively” in the regulation you quoted. For a device to be exempted, it must be designed and marketed such that it is reasonably expected it will only be used in industrial environments. Best regards, Ted Eckert Microsoft Corporation The opinions expressed are my own and do not necessarily reflect those of my employer. From: loerzer_mob...@globalnorm.de [mailto:loerzer_mob...@globalnorm.de] Sent: Thursday, February 18, 2016 2:09 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Hi, I am sorry if my question was answered anytime before. Nevertheless here my question: An European manufacturer has applied EN 61326-1 and EN 61010-1 for an industrial personal computer in an industrial plant for measurement purposes. What are the mandatory requirements regarding EMC in US/Canada? Is ICES-003 mandatory for Canada? If not in my understanding ICES-001 is also not applicable. Is § 15.123 "exempted devices" (A digital device used exclusively as industrial, commercial, or medical test equipment.) for US applicable? If yes, 47 CFR Part 18 is in my opion also not applicable. Therefore NO mandatory EMC requirements for equipment which are in the scope of EN 61326-1 are existing in US/Canada? 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