[PSES] Reduced CE mark
Hi listmembers, I came across a statement on conformance.co.uk regarding CE marking and size requirements. Although the date shows 2020, it references the R Directive, so I'm not sure about that. Anyway, it states that for small products it's permissible to reduce the CE mark to 3mm, and that this is based on earlier legislation covering marking text on products of less than 150mm. Does anyone know what the earlier legislation was? In the past, I've found some surveillance authorities to be sticklers for the 5mm minimum and wondered if anyone has been able to cite this earlier legislation in support of a size reduction. Cheers, Dave - 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 All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
[PSES] FCC delays impending 5GHz U-NII rules
One day before the impementation! http://transition.fcc.gov/Daily_Releases/Daily_Business/2015/db0601/FCC-15-61A1.txt Best regards, Dave - 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 emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas sdoug...@ieee.org Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
[PSES] DIN VDE standards - English translations
Hi Listmembers, Does anyone know if English language versions of VDE standards are available? I've searched the VDE website but couldn't find a link to the standard I'm after (VDE 0620-1), though I did find printed versions for sale elsewhere (in German). Thanks in advance, Dave Wilson - 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 emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas sdoug...@ieee.org Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
[PSES] Fw: GigE coupler for IEC 61000-4-16
Is anyone aware of a manufacturer of a suitable coupler for testing GigE ports to the Low Frequency Conducted Immunity standard IEC 61000-4-16? Thanks in advance, Dave Wilson Cisco Systems - 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 emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
[PSES] Immunity testing of PLC equipment
Hi all, Have been looking at EN 50065-2-3, immunity testing of PLC/PLT equipment which signals in the frequency range 9-95kHz. This states that the circuit shown in Annex A of the standard must be used for criteria A and B tests, and recommends its use for criteria C tests. This would result in 2kV EFT/B and (possibly) 4kV surge transients being applied across the terminals of a LISN. The tables of requirements reference the basic standards in any case which, if they don't propose using the test methods therein, seems unnecessary. Anyone have any background on this, or possibly was involved in the standard's production? Thanks in advance, Dave Wilson - 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 emc-p...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
MB mark
Hi everyone, Anyone familar with MB in a circle? I wondered if, as it was a video product, it was related to the FCC Media Bureau? Thanks in advance, Dave - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
DC transients
Hi everyone, Can anyone point me to a commercially available test unit capable of performing DC transients tests to Section 10 of GR1089 Issue 4? Thanks in advance, Dave Wilson - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: Request timetable and details on restricting HCFC , HFC , and CFC in the EU and elsewhere
Hi Paul, Here's a link to the UK DTI guidance document on the applicable EC Regulation, 2037/2000. http://www.dti.gov.uk/access/overview.pdf Best regards, Dave Wilson Smith, Paul J. paul.j.sm...@thermo.com wrote: Hello Folks, I have received some information that the refrigerants with HCFC hydrochlorofluorocarbon, HFC hydrofluorocarbon, and CFC chlorofluorocarbon are not allowed in the EU and elsewhere. I would appreciate any info that would provide more details and specific timetables for restricting HCFC , HFC , and CFC Further , does anyone have any information that CFC may not be used in products after 1st of January 2005. Thanks Best regards, Paul J. Smith Bioscience Technologies Division, Thermo Electron Corporation This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree
Re: opinions, please
Hi Dave, I recall seeing a definition of component some years ago in reference to the EMC Directive, along the lines of being available for sale individually AND having an intrinsic function for the end user, in which case this would be considered a component. Best regards, Dave Wilson drcuthb...@micron.com wrote: I have a question: Is a Memory Module (DIMM) considered a component or an apparatus? I'm trying to decide whether the CE MARK is applicable to this type of product. Dave Cuthbert Micron Technology This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All! emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree
RE: India Compliance
Hi Rich, Another guy who does a lot of compliance work in India is Jas Dhaliwal of International Compliance Approvals. He can be reached on (510) 821 4980, email icac...@aol.com. Regards, Dave Collins, Jeffrey jcoll...@ciena.com wrote: Rich, You will definitely run into some nuances when deploying your products into India. While on the surface it may appear the regulations are straight forward, however when actually communicating with the authorities you will begin to uncover the bureaucracy and will be at a distinct disadvantage. The value of employing an agent will allow efficient communicate with the certification body, test lab and your customer to facilitate the process, define the testing scope, and cut through the bureaucracy. You need to find an experienced agent that has a background in both cultures, spe! aks their language and can provide solid engineering judgment. We were able to maneuver through this maze much faster and cheaper than our east coast division by hiring a consultant named Jay Gandhi of EMT. In my opinion he is the best choice for India and a few other countries. Here is his contact info: Jay Gandhi (650) 965-4000 'jg...@aol.com' Regards, Jeffrey Collins Sr. HW Engineering Manager Corporate Compliance Homologations CIENA Corporation 5965 Silver Creek Valley Rd. San Jose, CA. 95138 (408) 571-3002, Fax (408) 965-2705 jcoll...@ciena.com http://www.ciena.com -Original Message- From: Stone, Richard [mailto:rst...@xl.com] Sent: Tuesday, October 28, 2003 10:19 AM To: Georgerian, Richard; EMC PSTC Subject: India Compliance hello group, 2 questions in one day, does this fulfill my allowance? What are the India reuqirements for: EMC-EMI Safety Telecom Other? do they reference other standards such as UL, EN and FCC type requirements... thank you for taking a few minutes on this.. Richard, Richard A. Stone Excel Switching Corporation Compliance 75 Perseverance Way Hyannis, MA. 02601 508 862 3311 ph. 508 862 3020 fax rst...@xl.com This email message and any attachments to it contain confidential information that is intended only for the person or entity to which it is addressed. Any review, retransmission, dissemination, printing, or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please delete it or inform the sender. From: Georgerian, Richard [mailto:rgeorger...@carrieraccess.com] Sent: Tuesday, October 28, 2003 10:06 AM To: 'EMC PSTC' Subject: RE: NARTE questions Greetings All, Only time will tell if being a NARTE certified product safety engineer will have an impact in the profession. I just got my certificate yesterday. In the long run, I think it'll help, but we have to start somewhere. Hopefully, having this type of program will start a process to which people expect a certain level of knowledge on product safety. Something analogous to someone having a bachelors, masters or Ph.D. There is a certain level of knowledge that one expects when someone has these degrees. (It is only a general statement and I am sure there are plenty of knowledgeable people who do not have degrees, that a smarter than those who do.) Good luck to all those who apply. Richard = Richard Georgerian Compliance Engineer Carrier Access Corporation 5395 Pearl Parkway Boulder, CO 80301 USA Tele: 303-218-5748 Fax: 303-218-5503 mailto:rgeorger...@carrieraccess.com From: Brian O'Connell [mailto:boconn...@t-yuden.com] Sent: Monday, October 27, 2003 3:58 PM To: 'EMC PSTC' Subject: NARTE questions Good People I have downloaded the Product Safety Certification Application package from NARTE. Is this a certification that hiring managers recognize? Is it anticipated that managers and/or hiring speacilists will come to recognized this certification as significant? Also, is there any relationship between NARTE and the IECEE? Thanks much for advice and opinion. R/S, Brian O'Connell Taiyo Yuden (USA), Inc * This e-mail transmission, and any documents, files, or previous e-mail messages attached to it may contain information that is confidential or legally privileged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that you must not read this transmission and that any disclosure, copying, printing, distribution, or use of any of the information contained in or attached to this transmission is strictly prohibited. If you have received this transmission in error, please immediately notify the sender by telephone or return e-mail and delete the original transmission and its attachments without reading or saving them in any man! ner. Thank you. *
Looking for a position
Hello Group, I have recently been assisting Nokia Networks RD and Delivery Operations groups in their drive towards compliance with the RoHS and WEEE Directives, being involved both in Design for Environment and Lead-Free manufacturing issues. My contract has now drawn to a close and I find myself available to take on another challenge. I've been involved in compliance and quality systems for many years as a hardware engineer, regulator (BABT), consultant, EMC Lab Manager, Quality Compliance Manager and most recently in Environmental Engineering. It would be great to have the opportunity to pass on the benefit of my experience concerning application of the RoHS/WEEE Directives, but if you know of any other compliance/quality-related positions, please contact me offline and I will forward my resume. I would be willing to consider contracting positions in lieu of a permanent position, preferably in the Bay Area. Best regards, Dave Wilson _ Do you Yahoo!? Free online calendar http://us.rd.yaho .com/mail_us/tag/*http://calendar.yahoo.com with sync to Outlook(TM).
Automotive requirements
Hi, An ex-colleague of mine has requested information on automotive equipment requirements. I was able to point him to the relevant Directive in the EU, but wondered what degree of assessment was required in the US. The device is an electronic diagnostic tool which interfaces to the cars computer. Thanks in advance, Dave Wilson _ Do you Yahoo!? Free online calendar http://us.rd.yaho .com/mail_us/tag/*http://calendar.yahoo.com with sync to Outlook(TM).
Re: New Approach vs WEEE/RoHS
Hi Joe, You're correct that the CE Mark is not applied, but there are marking requirements. The WEEE Directive requires that producers place a crossed-out wheely bin symbol on their equipment (or packaging/user guide/warranty where this is not feasible), signifying separate collection. Also, the date of placing on the market should be shown on the equipment, if this date is after 13 August 2005. Finally, the identity of the producer must also be shown. There are additional information requirements if your equipment is intended for private households. Article 11 requires the producer to provide re-use and treatment info within one year of placing on the market, helping recycling facilities to identify the different components and materials, as well as hazardous substances and their locations. The way this is worded suggests that complete material info should be provided, and I guess this is a declaration of sorts. Producers (or their representatives) are also required to keep records of the mass of WEEE on entering and leaving treatment facilities, to enable compliance with the recovery/re-use targets for the different equipment criteria to be assessed. The RoHS Directive has no specific compliance declaration or marking requirements. It stipulates that the six substances are banned from 1 July 2006. Nor does it define what is meant by e.g. lead-free (the definition in the Vehicle EOL Directive is being touted as the most likely, i.e. 0.1wt%). There's a list of those devices, including medical devices, which are covered by the WEEE Directive in Annex 1B. Best regards, Joe P Martin marti...@appliedbiosystems.com wrote: Greetings, It is my understanding that the WEEE and RoHS Directives are not New Approach Directives. What is the difference between New Approach Directives and other directives such as WEEE/RoHS? In order to declare conformity to New Approach Directives, the manufacturer places the CE mark on the product and issues a Declaration of Conformity. How does a manufacturer declare compliance to the WEEE/RoHS? As always, your responses are appreciated. Regards Joe Martin EMC/Product Safety Engineer Applied Biosystems marti...@appliedbiosystems.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, ! send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _ Do you Yahoo!? Free online calendar http://us.rd.yaho .com/mail_us/tag/*http://calendar.yahoo.com with sync to Outlook(TM).
Temp chamber
Hello Group, An ex-colleague of mine is looking to use a temperature chamber for a short time to do some tests, in the Bay Area. Anyone know of a way of doing this without too much expense? Thanks in advance, Dave Wilson _ Do you Yahoo!? Yahoo! Tax Center http://rd.yahoo.com/ inance/mailtagline/*http://taxes.yahoo.com/ - forms, calculators, tips, and more
Marking of packaging material
Can anyone point me to the tables in the annex of Decision 97/129, the ID system for packaging covered by 94/62/EC? I can find the text, but not the tables which presumably detail the numbering system. Thanks, Dave Wilson _ Do you Yahoo!? Yahoo! Mail Plus http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com - Powerful. Affordable. Sign up now h tp://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com
Re: Wee Directive
Hi Ian, There is a UK government initiative called Envirowise - UK companies (SMEs) can request a free design consultation under the Fasttrack programme. Check out www.envirowise.gov.uk http://www.envirowise.gov.uk/ . It allows you to search by industry. Regards, Dave White, Ian ianwh...@spiraxsarco.com wrote: Hi everybody The Waste Electrical and Electronic Equipment Directive in Annex 1B lists the products covered by the Directive. Most of the products are consumer type products. As a company which produces industrial control equipment we need need to be sure we are covered before we proceed. We do not want to waste time and money. Our reading is we come under the Directive but would like the council of informed legal opinion. Can any one suggest anybody or organisation apart from the Department of Trade and Industry who did not want to be tied down to giving one. Thanks Ian White (Project Engineer - Spirax Sarco Ltd, UK) __ DISCLAIMER: The information in this message is confidential and may be legally privileged. It is intended solely for the original addressee(s). Access to this message by anyone else is unauthorised. If you are not the intended original recipient(s), any disclosure, copying, or distribution of the message, or any action or omission taken by you in reliance on it, is prohibited and may be unlawful. If you have received this message in error, please immediately contact the sender by return email or telephone Spirax Sarco Ltd on +44(0)1242 521361. If you are not the intended recipient of this email and you have received it through forwarding or in error you should delete it and make no copies. We have taken all reasonable steps to protect files from viruses, but do not warrant that this e-mail and any attachments are virus free. You should take full responsibility for virus checking. Thank ! you. Company Reg No : 509018 Reg Office : Spirax Sarco Ltd, 130-132 St Georges Rd, Cheltenham, UK __ _ Do you Yahoo!? Yahoo! Mail Plus http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com - Powerful. Affordable. Sign up now h tp://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com
Marking of plastic components
Hello Group, I keep hearing about a requirement to mark plastic components, supposedly in accordance with the WEEE Directive. However, I can't find anything in the WEEE Directive, or the ROHS Directive. I found a reference to ISO 11469 requiring marking of plastic components 25g, but can't find an equivalent European reference. I also found a reference to marking of plastic packaging for waste management, for parts 20g, but found no European reference for that requirement either. I scanned the emc-pstc archives but couldn't find any earlier related threads. Can anyone clear this up? Thanks in advance, Dave Wilson - Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now
Re: Need chapter verse on NiCad ban
Hi Michael, Cadmium is one of four heavy metals which will be banned by the middle of 2006, these are listed in the Restriction of Hazardous Substances (ROHS) Directive. You can see the draft at this link:- http://www.dti.gov.uk/support/summary.htm Regards, Dave Michael Taylor mtay...@hach.com wrote: Does anyone happen to know the regulation citation covering the EU - NiCad ban. Thanks in advance. Michael Taylor Hach Company - Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now
Re: ROHS Exemptions
Thanks for the reply, Neil. Actually, as far as components are concerned, I was referring to #5 of the Annex:- Lead in glass of cathode ray tubes, electronic components and fluorescent tubes. I suppose this means Lead IN GLASS ofelectronic components, rather than Lead in...electronic components - that's the clarification I was after. Regards, Dave Neil Helsby nei...@solid-state-logic.com wrote:The Annex states lead in solders for ... and does not mention components. If past experience is anything to go by, I would not be surprised to see the implementation date for lead free solder for these purposes to be incorporated before 2006 and neither would I be surprised if the date was July 2006 or very soon after. Preparing now would be better than rushing around at the last minute. Lead (and some other substances) will be exempted for some products and in some restricted quantities, and these are also detailed in the Annex. Regards, Neil Helsby ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ** - Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now
ROHS Exemptions
Hi Everyone, The Annex of the proposed ROHS Directive exempts (among other things) the following from the requirements set out in Article 4(1):- Lead in...electronic components Lead in solder for network infrastructure equipment for switching, signalling, transmission as well as network management for telecommunication. So I understand from the above that a piece of telecom equipment which is considered part of the network doesn't have to comply with the requirements of this Directive by 1 July 2006, as far as lead in electronic components and solder is concerned. However, the Annex goes on to say that lead in solder for network infrastructure equipment should be evaluated by the Commission as a matter of priority, with a view to setting a specific time limit for this exemption. Does anyone know of any such discussions regarding an applicable compliance timeframe? Thanks in advance, Dave - Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now
Re: Choce of Capacitance....
Derek, See this paper for a discussion on parasitic inductance of MLCCs versus chip size. http://www.avxcorp.com/docs/techinfo/parasitc.pdf Regards, Dave Wilson lfresea...@aol.com wrote:Hi all, I've just come from a discussion of decoupling capacitance In a nutshell, we have a combination of DSP and A-D/D-A conversion going on.. I have recommended that we use a single 4.7 microfarad 1210 packaged cap in place of the more traditional 0.1 and 0.001 microfarad 0805 caps in parallel. I believe that the data shows a better compromise favoring the single chip. Further, the need for BIG board entry caps is diminished. This is on an 8 layer board. Thoughts? Thanks, Derek Walton L F Research EMC Design and Test Facility - Do You Yahoo!? HotJobs, a Yahoo! service - Search Thousands of New Jobs
Re: Meeting CISPR in Fast Ethernet board
Hi Bob, Is it broadband noise? Maybe a DC-DC converter on the board? Or do you have a peak at 62.5MHz? The 8B/10B encoding gets you to 125MB/s, and an 0101 idle pattern effectively gives you 62.5MHz. Best regards, Dave Bob Patel wrote: Hi! I had a question regarding meeting EMI on my board for CISPR. I have a Fast Ethernet card and the 125MHz Fast Ehternet fails the CISPR in the 30Mhz to 100Mhz limit. In the layout care has been taken to isolate the chassis or quiet ground from Digital ground by isolating the ground from the secondary of the magnetics to the connector where the cable gets connected. Does anybody have recommendations as to how should I improve the board to meet CISPR in 30Mhz to 100Mhz. Thanks Bob __ Do You Yahoo!? HotJobs - Search Thousands of New Jobs http://www.hotjobs.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list - Do You Yahoo!? HotJobs, a Yahoo! service - Search Thousands of New Jobs
Radiation formula
Hi Group, I found a source which states that radiated emissions can be modeled as a small loop antenna (i.e. less than 1/4 wavelength), where the maximum E-field strength at 10m is proportional to the square of the frequency:- E = 263 x 10^-12 (F^2 x A x Is) V/m where A = loop area in sq cm, F in MHz, Is = source current in mA For cable radiation, we can model as a monopole antenna over a ground plane, whereby the maximum field strength at 10m (allowing for +6dB ground reflections) is direectional proportional to the frequency:- E = 1.26 x 10^-4 (F x L x Icm) V/m where L = cable length in m, Icm is cm current at F MHz in the cable My question is this - does anyone out there know how the constants in these formulae are derived? Thanks in advance, Dave Wilson - Do You Yahoo!? HotJobs, a Yahoo! service - Search Thousands of New Jobs
Re: Archives
The full URL doesn't work, but http://ieeepstc.mindcruiser.com/ gets you there. Thanks! plaw...@west.net wrote: On Tue, 16 Jul 2002 11:10:29 -0700 (PDT), Dave Wilson wrote: Did the old newsgroup archives ever find a home? I recall they were at RCIC which I think was something to do with Wyle Labs but I can't find anything on the web - has anyone taken over maintenance of the archives? I was going to tell you to look at the footer of the emails coming from the EMC-PSTC listserver - but there isn't any! It disappeared about July 12th. The EMC-PSTC archive is at http://ieeepstc.mindcruiser.com/emc-pstc --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list - Do You Yahoo!? Yahoo! Autos - Get free new car price quotes
Archives
Hi Everyone, Did the old newsgroup archives ever find a home? I recall they were at RCIC which I think was something to do with Wyle Labs but I can't find anything on the web - has anyone taken over maintenance of the archives? Thanks in advance, Dave Wilson - Do You Yahoo!? Yahoo! Autos - Get free new car price quotes
Dodging the bullet
Well, I couldn't dodge any longer and got laid off a couple of weeks ago. If anyone hears of any positions in compliance, including test facilities and ISO/Quality, please let me know and I'll forward my resume. I'd prefer the Bay Area at this time, but that may change depending on availability of positions. Best regards, Dave Wilson - Do You Yahoo!? New! SBC Yahoo! Dial - 1st Month Free unlimited access
Fire Resistance Database Analysis
Hi, I'm looking at the Verizon NEBS requirements, which along with GR-63 and GR-1089 call out the design guidelines in GR-78. Does GR-78 compliance have to be assessed independently for Verizon compliance, or is manufacturer's declaration on the NEBS checklist sufficient (section 2.8.1 would suggest otherwise, but design guidelines are not as readily measurable as say, environmental or EMC criteria)? Also, has anyone out there put together a fire resistance database in accordance with GR-63 4.3.2.1 before? Was it necessary for Verizon compliance? Or is shelf/frame-level flame testing and needle-flame component testing sufficient, provided the split-frame infra-red video requirements for Verizon are met? Thanks in advance, Dave Wilson Manager, Quality Compliance Alidian Networks, Inc.
GR-418
Hi, I can't find GR-418 (Generic Reliability Assurance Requirements for Fiber Optic Transport Systems) on Telcordia's on-line document center - anybody know if this has been superseded/discontinued? Thanks, Dave Wilson Alidian Networks Inc. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Surges on shielded lines
I'm trying to get surge testing done on a DS3 interface against EN61000-4-5. According to the standard, the test set-up in figure 13 should be used. The figure shows the test generator connecting to the chassis - can someone confirm that is how the test is done - i.e. the surge is applied to the chassis, and hence the shield? Thanks in advance, Dave Wilson Alidian Networks --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
ETSI dimensions
Does anyone have a feel for how close the spacing requirements in ETS 300 119 have to be met? There doesn't seem to be any tolerances, mins or maxes, i.e. the implication is that all dimensions must be met exactly. Anyone fallen down in Europe over this? Also, in ETS 300 119-4 it seems that D1 is incorrectly marked, i.e. D1 should be the entire depth, not the front part. Thanks in advance, Dave Wilson Alidian Networks --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Front-access PDU
Does anyone know of a supplier of a totally front-access PDU for use in European CO applications? Thanks in advance, Dave Wilson Senior Compliance Engineer Alidian Networks Inc. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
RE: Examples of EMC problems in the real world
Hey Gary, Check out Banana Skins in EMC Compliance Journal, too. http://www.compliance-club.com/archive1/archindex.html Dave Wilson Senior Compliance Engineer Alidian Networks Inc. tel: (408) 273 4787 fax: (408) 273 4800 -Original Message- From: Gary McInturff [mailto:gary.mcintu...@worldwidepackets.com] Sent: Wednesday, June 20, 2001 2:12 PM To: EMC-PSTC (E-mail) Subject:Examples of EMC problems in the real world There have been requests in the past on this forum for examples of real world events that were EMC related, as I recall we got a few but not many examples. In an email with Ralph he mentioned some work and an article that he had written chronically some of these problems. I asked him for some of his examples and he kindly sent the items below and has graciously allowed me to forward them. Thanks Ralph, and I hope that you enjoy them as much as I did. Gary -Original Message- From: Ralph Cameron [mailto:ral...@igs.net] Sent: Tuesday, June 19, 2001 6:14 PM To: Gary McInturff Subject: Some life threatening cases of EMI and others Gary: These cases were reviewed in an article I wrote about 14-15 years ago. Most incidents could happen tomorrow and came from a record of emi cases reported to all Canadian district offices of what used to be called Communications Canada. The reports covered a planned three month monitoring period during which time ther were 439 emi related reports and another 242 cases of swamping ( RF overload of TV, radio etc.) If you consider that Canadian incidents represented about 8% of the total number of incidents in the U.S. at that time, it may help to place the occurrences in perspective. Since that time, Industry Canada has not recorded domestic problems or complaints due to a lack of immunity ( radiated or conducted) but do have an advisory bulletin specifying field strengths communication transmitter owners cannot exceed. These limits are taken from the EU requirements for electronic equipment radiated immunity . Not surprisingly, I have found at least 95% of interference cases have been resolved not by increasing radiated immunity but, by reducing or eliminating most of the conducted component That's why I believe the simple expedient of designed in conducted immunity levels the playing field for all consumers and removes the nuisance of trying to find a solution, particularly, after sale. Examples: London Ont. A vhf broadcast radio link , owned by a commercial broadcast station , operating in a shopping mall, disrupted electronic weigh scale operation. False and incorrect weights and prices were displayed while the link was operating. Peterborough Ont. A CAT scan medical device's operation was disrupted by transmissions from a new FM broadcast transmitter. Brampton ON Radio frequency plastic sealing equipment located in close proximity to a neighbouring paint operation seized control of the six foot paddles stirring the vat of paint to the point where the shaft broke away from the motor , burst through a water tank and embedded itself in the factory wall. Toronto ON A hospital heart monitoring system displayed erroneous readings when the hospital radio despatch system was operated. Toronto ON A Federal government's computer system would crash when a nearby chiropractor operated his diathermy ( radio frequency generator ) machine. Edmonton Ab The telephone company lost billing data from their computer system which was attributed to the operation of a nearby private commercial radio despatch system. Calgary Ab An amateur radio operator's transmissions were heard in the recording equipment of a professional recording studio. Until the problem was resolved, the studio lost money on their operations. Grande Prairie Ab When a hospital's diathermy was used, the hospitl alert system would occasionally issue a a 'code 9' alert, in error. The diathermy also affected the physiotherapist's treadmill by accelerating the motor control mechanism. Grande Prairie Ab The mobile cranes on a logging company's railway had a collision avoidance system installed in each crane. Radio transmissions would occasionally defeat the protection offered by these systems. In Ottawa ON Ontario Hydro Electric Power Commission reported that Oil fired generating stations' control equipment on oil fired generators was affected by operation of nearby mobile radio equipment . Gas monitors, required for confined space atmosphere, continuous monitoring of toxic/ explosive gases and oxygen were found to give false alarms in 7 of 8 tested near UHF , narrowband ( 466Mhz ) transmissions and one had problems from 49Mhz narrow band signals. Because many amateur radio operators reside in urban areas, their HF operations ( covering 1.8-144Mhz ) have been demonstrated to affect the following . In some instances they could cause harmful effects: Intravenous pump in hosptial room went into the reset ( fail safe) mode
G.709
Anybody know the latest status of this (ex- G.ons)? I have a draft dated Jan 99, but can't see it on the ITU web-site as a forthcoming recommendation. Thanks, Dave Wilson Alidian Networks Inc. tel: (408) 273 4787 fax: (408) 273 4800 www.alidian.com
Hazardous material
We're filling out an RFP, one section of which concerns hazardous material. If your product contains potentially hazardous material, you need to fill out OSHA Form 20. The only thing I have identified so far is a lithium battery - would this require the OSHA form? What about capacitors? Thanks in advance, Dave Wilson Alidian Networks Inc. tel: (408) 273 4787 fax: (408) 273 4800 www.alidian.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Regulatory Requiements for Various Countries
Pryor, ICC in the UK publish approvals manuals for all countries of the world, including radio equipment and legal issues like inter-connect. Their web-site is www.icc-uk.com http://www.icc-uk.com . Regards, Dave Wilson Alidian Networks -Original Message- From: Pryor McGinnis [mailto:c...@prodigy.net] Sent: Monday, January 29, 2001 11:33 AM To: emc-p...@majordomo.ieee.org Subject: Regulatory Requiements for Various Countries I have a client who wishes to ship Class A ITE equipment into various countries. Attached is a list of countries. Does anyone have a listing for the various countries or know of a source for this info? Thanks in advance. Best Regards, Pryor McGinnis c...@prodigy.net mailto:c...@prodigy.net www.ctl-lab.com http://www.ctl-lab.com
FW: HP probe
-Original Message- From: Dave Wilson Sent: Wednesday, January 17, 2001 11:59 AM To: 'emc-p...@majordomo.ieee.org' Subject: HP probe Can anyone tell me the frequency range of the HP85024A? I've looked on the Agilent web-site but can't find a reference to it. Thanks, Dave Wilson Alidian Networks Inc. www.alidian.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
HP probe
Can anyone tell me the frequency range of the HP85024A? I've looked on the Agilent web-site but can't find a reference to it. Thanks, Dave Wilson Alidian Networks Inc. www.alidian.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
ESD
Does anyone have a copy of, or know where I can get hold of a copy of, EOS/ESD-S4.1 from the ESD Association, covering Work surfaces - Resistance Measurements? Thanks, Dave Wilson Alidian Networks --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Lasers in ITE Equipment
We had to supply accession numbers for all of the lasers used in our equipment and submit a copy of our FDA report to satisfy UL. For CB, we have to provide certificates for each laser against EN60825 - this is more difficult, as some European component manufacturers are self-declaring, meaning a full assessment of the component is required. Dave Wilson -Original Message- From: Kenneth McCormick [mailto:kmccormick...@hotmail.com] Sent: Monday, November 20, 2000 3:08 PM To: emc-p...@majordomo.ieee.org Subject:Lasers in ITE Equipment I am working with a client who has posed a question that I am not sure that I can accurately answer. What are the NRTLs (and for that matter, other test laboratories) requiring for Laser Certifications. Annex NAE of UL1950/CSA C22.2 No 950 is an INFORMATIVE annex(and mentions the regultory requirements of a CDRH Report in US and a REDR in Canada), however Clause 4.3.12 leads me to believe that proof of compliance with these regulatory requirements is REQUIRED by the standard. With EN60950, compliance with IEC825 is required by clause 4.3.12. Are the certifying laboratories witholding certification until the manufacturer can show compliance with the applicable requirements, or are they simply stating that compliance with the applicable laser requirements is the responsibility of the manufacturer? If they are holding certification, what proof will typically meet their requirements? Will documentation showing that the application has been submitted to the CDRH suffice, or do they typically require the final reports and approval issued by CDRH? What laser markings, if any, are these laboratories requiring in their compliance reports? Is anyone aware of some documents that summarize the requirements of the CFR IEC825? Thank you in advance, Kenneth _ Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
E3 grounding
Hello group, Can anyone advise on how the grounding of the Rx side should be handled to satisfy Europe? The UK used to require the option of grounding or not, but I'm not sure if this is still a requirement, or about requirements in other parts of Europe. Thanks, Dave Wilson --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: NEBS compliant Power Supplies.
The Hendry power supplies displayed at the NEBS 2000 symposium in Las Vegas all bore NTS NEBS Tested labels. Regards, Dave Wilson Alidian Networks -Original Message- From: ron_du...@agilent.com [mailto:ron_du...@agilent.com] Sent: Wednesday, October 18, 2000 3:22 PM To: emc-p...@ieee.org Cc: john_mahlb...@agilent.com Subject:NEBS compliant Power Supplies. I am looking for a source for NEBS compliant power supplies. Any suggestions are welcome. Ron Duffy ron_du...@agilent.com 719-590-2335 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Laser safety training
I was looking on the Laser Institute of America web-site and came across a set of videos for training on safe handling of lasers. Tape 5 ($500) covers Servicing High-Powered Lasers and Optical Fiber Communication Systems. Has anyone out there viewed this and would you recommend it for the OFCS section? Thanks, Dave Wilson Alidian Networks --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
ETSI standards vs NEBS
Does anyone have a feel for the degree of acceptance of GR-63/1089 in Europe? I can remember at a previous company we got LONIIS in Russia to accept NEBS test results with minimal additional assessment against ETS 300 019/119. Anyone else have any stories to tell, other than the obvious spatial differences? Thanks, Dave Wilson Alidian Networks
RE: Testing of product per en60825-1
You don't say where you are located, but I believe Cetecom have a facility in Mountain View, CA. Contact Fernando Hardasmal on (408) 586 6203. Dave Wilson Alidian Networks Inc. -Original Message- From: bharat_s...@logitech.com [mailto:bharat_s...@logitech.com] Sent: Monday, September 25, 2000 11:36 AM To: emc-p...@ieee.org Subject:Testing of product per en60825-1 Hello, Is there any independent laboratory who can conduct the test per EN60825-1 ? Thank you, Regards, Bharat Shah --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: RCIC been hacked??
Yes, but I used my browser to get directly into the virtual conference hall (http://www.rcic.com/adm/cnf/confs.cfm?dir=nr=1ord=dw=pstc), as it only seems to affect the home page. -Original Message- From: Mike Morrow [mailto:mi...@ucentric.com] Sent: Wednesday, September 06, 2000 10:32 AM To: EMC Society Subject:RCIC been hacked?? Anyone else getting a Napster message when going to the RCIC site?? Mike Morrow Senior Compliance Engineer Ucentric Systems 978-897-6482 mi...@ucentric.com www.ucentric.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
PTCs
We supply -48V to each card in our shelf, each having their own DC-DC converter. Each card also has an on-board fuse, we are thinking about going to PTCs instead. The values range from 0.75A to 5A. I've seen devices from Bourns Inc. and Littelfuse. Anyone have any recommendations/suggestions? Thanks, Dave Wilson Alidian Networks Inc. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: South Africa accept CB.. ?
Hi George, I remember a couple of years ago South Africa requiring that our US EMC reports somehow were traceable to EAL, e.g. issued by a US-based lab with some affiliation/endorsement by a European lab. I don't think they accept CE-marking per se. I'm pretty sure they'll accept CB reports for safety. Dave Wilson Alidian Networks -Original Message- From: George Sparacino [mailto:george.sparac...@bostonacoustics.com] Sent: Monday, June 26, 2000 1:39 PM To: emc-p...@ieee.org Subject: South Africa accept CB.. ? Hello All, I need to know if South Africa accepts the CB scheme for safety of Power Adaptors for ITE equipment. Also, Do they accept CISPR reports for EMI/C ? If yes, we plan to use the CE marking. Are there any additional cerifications \ markings required for either safety or EMI/C? Thanks in Advance, George --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Bellcore GP-1089 emissions testing: LISN test setup
I seem to remember the caps were specified in an earlier version of the standard, and are no longer required (issue 2, rev 1 February 1999). My understanding is that the LISN is that used for CISPR measurements. Dave Wilson Alidian Networks Inc. -Original Message- From: plaw...@west.net [mailto:plaw...@west.net] Sent: Thursday, June 15, 2000 10:35 AM To: EMC-PSTC; t...@world.std.com; n...@world.std.com Subject:Bellcore GP-1089 emissions testing: LISN test setup I'm looking through Bellcore GR-1089 Issue 2 Revision 1 for details on the test setup for conducted emissions testing. I was under the impression that some of the measurements involved use of large RF bypass caps to ground, and the interference currents through the capacitor were measured. While I found spec limits and test setups for current probe-style measurements, all the figures simply display a power input network marked 'LISN', which I assume to be the standard 50 ohm network. I can't find a reference that explicitly discusses the use of an RF bypass cap. Could someone point me to the appropriate section? Patrick Lawler plaw...@west.net
RE: Looking for Inrush Current Standard
Hi Don, I recall ETS 300 132 covers power supplies, but I can't remember what aspects it covers and I don't have a copy to reference. You can download the relevant part from the ETSI web-site (www.etsi.org) http://www.etsi.org) . Regards, Dave Wilson Senior Compliance Engineer Alidian Networks Inc. -Original Message- From: don_macart...@selinc.com [mailto:don_macart...@selinc.com] Sent: Thursday, June 01, 2000 6:03 AM To: emc-p...@majordomo.ieee.org Subject:Looking for Inrush Current Standard I am looking for a standard or standards (IEC, EN or similar) which contain inrush current requirements for power supplies. The standard might require the inrush to be: 20A for 50 ust1.5ms, 10A for 1.5mst500ms, 0.6A for t500ms. Do any good standards exist on inrush current? Thanks, Don MacArthur --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: EMI test software
I used Vasona (check out www.emisoft.co.uk http://www.emisoft.co.uk ) and would highly recommend it both on price and performance. You can download a demo version. Although the web-site is a UK address, the designer actually lives in Los Gatos! Dave Wilson Senior Compliance Engineer Alidian Networks Inc. -Original Message- From: John Chan [mailto:jo...@baclcorp.com] Sent: Thursday, May 25, 2000 1:42 PM To: emc-p...@majordomo.ieee.org Subject: EMI test software Dear Sir / Madam; I am looking for a software package to run with HP8566B in a chamber. Can anyone tell me where I can buy one? Thank you in advance. Best Regards; John Chan Bay Area Compliance Laboratory Corp. (Sunnyvale, CA) Tel: (408) 732 9162 Fax: (408) 732 9164 e-mail address: jo...@baclcorp.com mailto:jo...@baclcorp.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Laser Classification
Group, We manufacture a product for use in an Optical Fiber Communication System which incorporates several laser devices, and I'm somewhat puzzled by the classification stated on some of the manufacturer's data sheets. For one application, both our primary device and the alternative we're looking at list their devices as Class IIIb (US), although the first has a declared max. optical tx power of +3.5dBm and the alternative is +8.0dBm max. My understanding is that for wavelengths at 1550nm, the class IIIb range starts at +9.3dBm (8.5mW). On the label reproductions in the data sheets, the primary source states 2mW max while the alternative states 10mW max. What am I missing? Thanks in advance, Dave Wilson Senior Compliance Engineer Alidian Networks Inc. Tel: 408-273-4787 Fax: 408-273-4800 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
re: EMC certification
Try NARTE (National Association of Radio and Telecommunications Engineers). www.narte.org Dave Wilson EMC Manager BABT Product Service Tel: 408-919-3745 -- Original Text -- From: john.linst...@cdynamics.com, on 3/3/00 1:48 PM: To: smtp@DAN7@Servers[emc-p...@majordomo.ieee.org] FROM too long. Original FROM is Linstrom, John (IndSys, GEFanuc, CDI) john.linst...@cdynamics.com -- Original Message Follows -- Is there an EMI/EMC equivalent to the PE (professional engineer) or CNE (certified network engineer) - and how would one go about getting this certification? John Linstrom Computer Dynamics PH 864.281.7768 x266 FX 864.675.0106 john.linst...@cdynamics.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
dBu
Has anyone come across this unit before? It's referenced in EN55103-2 (Professional Audio/Video Immunity) for audio frequency common mode immunity testing. I realise it may be a misprint, but I thought someone else may have already looked into it. Dave Wilson BABT Product Service - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
re: Harmonized Frequencies
Hi Rick, Try www.ero.dk (European Radiocommunications Office of the CEPT). They have details of harmonised frequencies in Europe and also some national frequency allocation tables. Dave Wilson EMC Manager BABT Product Service 408-919-3745 -- Original Text -- From: Rick Linford rlinf...@allwest.net, on 11/12/99 10:25 AM: Greetings, I am hoping the group can help me with this one. Is there an address on the Internet that has a list of harmonized transmitter frequencies for Europe? Thank you. Rick Linford - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: EU Official Languages
It should be borne in mind that there may be certain national consumer laws which require user documentation to be in the national language. Dave Wilson EMC Manager BABT Product Service -- Original Text -- From: POWELL, DOUG doug.pow...@aei.com, on 6/30/99 9:56 AM: Richard, I can only speak from my experience with the LVD and EMC directives. 1) The requirement for CE marked products is that the user documentation and the DoC be in one of the official languages of the EU. So, we use English as one of the languages. 2) That being said, the safety standards my company uses to comply with the CE mark, require that we provide user documentation in any of the other official languages if in fact our customer explicitly requires it by contract. However this may be a reduced size document containing only those portions that are specifically related to the safe installation, operation, maintenance and disposal of the product. It is not required that you translate sections like theory of operation, applications, sales literature, etc. 3) Additionally, when we certify a product through a notified body, in this case LGA in Nurnberg Germany, the national public safety law requires a manual in German. I suspect other nationalities within the EU have similar requirements for certified products. This policy has been confirmed by our representative from LGA America. -doug === Douglas E. Powell, Compliance Engineer Advanced Energy Industries, Inc. Fort Collins, Colorado 80525 USA === -Original Message- From: WOODS, RICHARD [mailto:wo...@sensormatic.com] Sent: Tuesday, June 29, 1999 11:44 AM To: 'emc-pstc' Subject: EU Official Languages When a Directive requires information to be provided to the user, and that equipment is intended to marketed in every EU and EFTA country, what minimal set of languages must be used? I can think of the following languages that are used in these countries. Are there more languages that must be included? Can some of these be deleted? English, French, German, Spanish, Portuguese, Italian, Greek, Dutch, Danish, Swedish, Finnish, and Norwegian (EFTA) - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
