Re: Don'r Get Caught Running a Red Traffic Light!
Hi Doug: I've only heard shortening the yellow light cycle as an unconfirmed rumor. But I've been watching. grin According to our local newspaper, the San Diego Union- Tribune, not only did the contract photo cops shorten the yellow light, they also moved the sensors. The contract photo cops get a percentage of the fine. The fine is $271, and the photo cops get $70 or so. The contract photo cops choose the intersections and set up the system. Only the intersections with known high-volume red-light runners were set up. The whole operation was based on maximizing revenue (in the name of vehicular safety) for the photo cops, a private business. The contract photo cops do the whole job without supervision from real cops. A class-action lawsuit has shut down the cameras. You may be able to find some articles on the UT web site. The hullabaloo was about a year ago. Best regards, Rich --- 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
Re: Don'r Get Caught Running a Red Traffic Light!
Interesting stuff Paul. With all the crap about pirate cable boxes and things, I'm surprised someone hasn't jammed those boxes. Anyone know what the immunity standards of such devices would be if it's required? - Doug McKean --- 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
RE: Don'r Get Caught Running a Red Traffic Light!
This thread has digressed quite a bit... Allow me to add to it! 3M makes something called the Opticom System. It is a traffic management device that really helps emergency vehicles make their way thru heavy traffic... Here's an article that summarizes it nicely: http://www.pilotonline.com/news/nw0111roa.html Also, there is a well produced video under the 3M Opticom System section here: http://www.3m.com/us/safety/tcm/products/itsvids.jhtml Paul Hare e: ph...@pirus.com Compliance Engineer w: 978.206.9179 Pirus Networks f: 978.206.9199 43 Nagog Park c: 508.450.0376 Acton, MA 01720 i: www.pirus.com -Original Message- From: Doug McKean [mailto:dmck...@corp.auspex.com] Sent: Friday, March 08, 2002 8:38 AM To: ieee pstc list Subject: Re: Don'r Get Caught Running a Red Traffic Light! Just as a side issue about remote monitoring of red-light runners ... One unintended consequence of cameras watching for people who run lights happened in Fremont about 2 years ago. A couple of stop lights were set up with cameras as an experiment. During the course of rush hour traffic one day at one of the experimental camera sites, an emergency vehicle was stuck behind several vehicles sitting for a red light. Apparently the fire truck was boxed in since the roads were several lanes wide and the truck was all the way over in a right lane. Lights and siren were blaring away. Q: Did any of the cars move out of the way of the fire truck and in doing so some would have to move through the intersection and thus thru the red light? A: No. Reason: No one wanted to get a ticket running the red light. Be rather ironic that the fire truck was responding to the home of someone sitting at that intersection. Just something to think about. Regards, Doug McKean --- 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 --- 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
RE: EU Harmonized Frequencies
Hi Bob, That is a fairly broad question given the available spectrum, different types of devices and 19 or so different spectrum management agencies. ERC recommendation 70-03 is a 50 page synopsis for frequency restrictions by country for short range devices only. I'm sure similar documents exist for other types of transmitters. I am not aware of a document that lists all the radio types and categorizes them as harmonized bands or not. I suggest you determine your radio type see if an ERC recommendation exists for your radio type. Then, check to see if there are any restrictions by any country for that radio type. You can find ERC recommendation at: www.ero.dk Kind Regards, Sam Wismer Engineering Manager ACS, Inc. Phone: (770) 831-8048 Fax: (770) 831-8598 Web: www.acstestlab.com -Original Message- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org] On Behalf Of rehel...@mmm.com Sent: Friday, March 08, 2002 10:08 AM To: emc-p...@majordomo.ieee.org Subject: EU Harmonized Frequencies Are there any harmonized frequencies under the RTTE Directive? Is there a website for viewing the harmonized frequencies? Bob Heller 3M Product Safety, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 --- 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 --- 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
Central New England EMC Chapter - meeting on March 13, at EMC Cor p., Hopkinton, MA
Central New England Chapter of EMC Society - meeting on March 13 Electromagnetic Compatibility Society - 7:00PM, 13 March Understanding EMI Shield Behavior in Real Product Environments Colin Brench, Compaq Computer Corporation, Distinguished Lecturer EMC Society EMI shielding is a mainstay of EMI control. Frequently the design of the cooling or other apertures in a given enclosure is driven by the EMI requirements. This can result in compromised thermal and/or acoustic behavior and may mandate larger, noisier fans to meet other environmental needs. The well-established Shielding Effectiveness equations have their place, but they also have their limitations. In this presentation test data and modeling are used to show and explain some of commonly seen but mis-understood shielding problems. Typical cases will be presented including the effects of internal and external cables when located close to an array of apertures. Any proximal conductors can influence the shielding performance of an enclosure, and can create windows where the shielding is much lower than anticipated resulting in excessive emissions. There are also situations when an EMI shield can be working much better than thought and under these conditions larger apertures are possible. This may permit the use of smaller fans resulting in lower noise and/or less expensive construction details. Designing appropriate EMI shields is a major task for EMC engineers and understanding their true behavior is key to achieving this goal. Colin Brench has been working for Digital Equipment Corp., now Compaq Computer Corporation, for 16 years, where he is a Principal Member of the Technical Staff. He has responsibility for EMC product design, and the development of EMC modeling capabilities in the High Performance Server Division. Colin has been particularly active in the area of antenna and shielding behavior since the early 1970's. Colin has presented numerous EMC training classes that embrace a broad range of topics ranging from microprocessor packaging, through printed circuit module issues, to system design and shielding. In many of these classes explanations are clarified with a combination of computer generated simulations and data from measurements. Colin is a co-author of the book, EMI/EMC Computational Modeling Handbook (Kluwer Academic, 2nd Edition 2001), and has authored well over 20 technical papers and articles. In addition, he holds nine patents for various methods of EMI control. He is a NARTE certified EMC Engineer, a member of the IEEE EMC Society, and is active in the TC-9 and ANSI ASC63 SC-1 committees. In March of 2001, Colin was appointed a Distinguished Lecturer for the IEEE EMC Society. This meeting of the IEEE Central New England Chapter of the EMC Society (CNEC, EMCS) will be held on Wednesday March 13, 2002 at EMC Corporation, 42 South Street, Hopkinton in the Corporate Auditorium Training Center Building. The technical presentation will commence at 7PM, and refreshments will be available at 6PM. Directions: From Rte. 495 North or South take exit 21B to South Street. At first traffic light make left turn (Note: This is on South direction side of Rte. 495). EMC Corporation is at second driveway on right. For further information contact John Clarke at (508) 362-7195 or the meeting host Boris Shusterman at (877) 362-2887 ext.77517. If neither available leave message and calls will be returned. --- 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
RE: RTTE In Czech Republic
After reading the document, I find that this is not anywhere near a transposition of the RTTE Directive. Rather it is a very high level telcom law. So, does know the reference of the actual document that transposes the RTTE and where to find it? Richard Woods Sensormatic Electronics Tyco International -Original Message- From: WOODS, RICHARD Sent: Thursday, March 07, 2002 8:30 AM To: emc-p...@majordomo.ieee.org Subject: RE: RTTE I found the english document at http://www.mdcr.cz/english/index14.htm Richard Woods Sensormatic Electronics Tyco International -Original Message- From: h.knud...@niros.com [mailto:h.knud...@niros.com] Sent: Thursday, March 07, 2002 3:10 AM To: richwo...@tycoint.com; emc-p...@majordomo.ieee.org Subject: SV: RTTE Hello Richard, About Czech Republic, you may find the information in English on: http://www.ctu.cz/index_a.htm The Czech legislation Act No. 151/2000 Coll. on telecommunication and changes in other Acts may be found on http://www.mdcr.cz/tp1.htm (it is not accessible at the moment). Best regards Helge Knudsen Test Approval manager Niros Telecommunication Hirsemarken 5 DK-3520 Farum Denmark Tel +45 44 34 22 51 Fax +45 44 99 28 08 email h.knud...@niros.com -Oprindelig meddelelse- Fra: richwo...@tycoint.com [mailto:richwo...@tycoint.com] Sendt: 6. marts 2002 14:07 Til: emc-p...@majordomo.ieee.org Emne: RE: RTTE I just investigated Hungary and found the following variances for radio: A Hungarian national (local manufacturer or importer) is responsible for compliance including signing the Declaration of Conformity. The user instuctions and DoC must be in the Hungarian language. Annex VIII includes the harmonized bands in Hungary. For some bands, the use of the alert symbol is not required and neither is notification. Unfortunatuly, the Czec directive is not available in English on the website, so I have not been able to determine if there are any deviations from the EU RTTE. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Andre, Pierre-Marie [mailto:pierre-marie.an...@intel.com] Sent: Wednesday, March 06, 2002 6:13 AM To: 'Kim Boll Jensen'; richwo...@tycoint.com Cc: emc-p...@majordomo.ieee.org Subject: RE: RTTE I thought that Hungary and Czec Republic are RTTE like,not 100% RTTE according to the type of interface some minor difference may exist (label,DOC,...) Pierre-Marie Andre Intel Sophia Senior Approval Engineer -Original Message- From: Kim Boll Jensen [mailto:kimb...@post7.tele.dk] Sent: mercredi 6 mars 2002 11:44 To: richwo...@tycoint.com Cc: emc-p...@majordomo.ieee.org Subject: Re: RTTE Hi all Here are a list of all countries which at the moment have implemented the RTTE directive 100%: Belgium Denmark UK Finland France Greece Holland Italy Iceland Ireland Liechtenstein Luxembourg Norway Portugal Spain Sweden Switzerland Czech Republic Germany Hungary Austria richwo...@tycoint.com skriver: Have any European states that are not EU or EFTA members adopted the RTTE Directive and Notificaion process? In other words, will any other European countries allow a radio product to be placed on their market if the processes of the RTTE Directive are followed without the need for any other special national process to be followed? Richard Woods Sensormatic Electronics Tyco International --- 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 --- 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
RE: Flammability rating question
David and Gary - Gary has the name correct, but the difference in rating is derived due to complications related to the test method. VTM materials tend to curl up, wilt or shrink away from a flame when cut into test blanks normally used for the V-x small scale material testing. To overcome this, the test samples are formed into cylinders by wrapping them around a mandrel, to stiffen them. The samples are oriented the same as for the V-x testing and the mandrel is removed prior to applying a flame. Since the test methods are different and not directly comparable, the VTM rating scheme was devised. In VTM-x, the -x part of the rating is roughly comparable to V-x ratings and are generally treated as equivalent. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services peter.tar...@sanmina-sci.com -Original Message- From: Gary McInturff Sent: Friday, March 08, 2002 6:52 AM Vertical thin material. The first part is the orientation of the test sample just as is 94 VX and the second part TM identifies thin material. Its thin enough that if used on its own it to would burn, but when used attached to someother surface it will not burn. Mostly I've sen it in tapes etc. If I remember correctly it has to be tested mounted to a madril of some sort to determine is ratings. Gary -Original Message- From: Gelfand, David [mailto:david.gelf...@ca.kontron.com] Sent: Thursday, March 07, 2002 2:06 PM What does UL 94 VTM-0 mean? I saw it in a spec for thin insulating plastic. Thanks, David. David Gelfand Regulatory Approvals Kontron Canada 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
RE: Don'r Get Caught Running a Red Traffic Light!
Once again, the legal system scores a victory over common sense! Bob Wilson TIR Systems Ltd. Vancouver. -Original Message- From: Bill Owsley [mailto:ows...@cisco.com] Sent: March 8, 2002 7:15 AM To: Doug McKean; ieee pstc list Subject: Re: Don'r Get Caught Running a Red Traffic Light! Don't know about CA, but in this state, yes, a driver would get a ticket. Drivers are required to yield as long as they don't break a law. At 08:37 AM 3/8/2002, Doug McKean wrote: Just as a side issue about remote monitoring of red-light runners ... One unintended consequence of cameras watching for people who run lights happened in Fremont about 2 years ago. A couple of stop lights were set up with cameras as an experiment. During the course of rush hour traffic one day at one of the experimental camera sites, an emergency vehicle was stuck behind several vehicles sitting for a red light. Apparently the fire truck was boxed in since the roads were several lanes wide and the truck was all the way over in a right lane. Lights and siren were blaring away. Q: Did any of the cars move out of the way of the fire truck and in doing so some would have to move through the intersection and thus thru the red light? A: No. Reason: No one wanted to get a ticket running the red light. Be rather ironic that the fire truck was responding to the home of someone sitting at that intersection. Just something to think about. Regards, Doug McKean --- 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
RE: EMC and Safety PCB Reviews
I think that we all need to get a grip on our job title envy. If all one is his/her job title then that person is in a heap of trouble, especially in today's job market. I was a GI for 23 years. Does anyone know what that means? Government Issue That didn't change who I was/am. Nor did it affect how I felt about myself. I am me because of who I am, not what I am. There was a period that some of the female spouses took exception to being called dependents. They didn't feel that they were dependent. (Of course they had no problems availing themselves of the services offered on which the depended.) MOO (My Opinion Only) Stephen Phillips stephen%cisco@interlock.lexmark.com on 03/07/2002 03:27:10 PM Please respond to Stephen Phillips stephen%cisco@interlock.lexmark.com To:Robert Wilson robert_wilson%tirsys@interlock.lexmark.com cc:emc-pstc%majordomo.ieee@interlock.lexmark.com (bcc: Oscar Overton/Lex/Lexmark) Subject:RE: EMC and Safety PCB Reviews Technically, we refer to them as PCB CAD engineers. I omitted part of that, given the fact that it seemed redundant - PCB's being the topic of discussion. I now return you back to your job as Keyboard Engineer. Stephen At 11:59 AM 3/7/2002, Robert Wilson wrote: As a side issue to your comments, I find it interesting that you refer to a PCB designer as a CAD engineer . Does this mean that 20 years ago he would have been a Drafting Board engineer ? :) Kind of sad when the tool one uses is deemed to be more important than the job one is doing! Bob Wilson TIR Systems Ltd. Vancouver. -Original Message- From: Stephen Phillips [mailto:step...@cisco.com] Sent: March 6, 2002 9:49 AM To: Alex McNeil Cc: emc-p...@majordomo.ieee.org Subject: Re: EMC and Safety PCB Reviews Alex, Not really a thorough checklist per se, but for Safety - roughly this: Throughout this process, I prefer to make notes on paper doc's, and then sit with the CAD engineer to go over the review on his computer screen and make any changes right then. - Schematic review (identify and mark up areas such as exceeding SELV and TNV, identify critical nets). - Provide Creepage Clearance guidelines to PCB CAD engineer (who inputs into the CAD system, based on properties assigned to the nets via the schematic). - Placement Review (using marked up silk-screen or assy. dwg based on previously marked up schematics), and also layer stack-up review at this time. - Layout review, layer by layer routing, and adjacent layer to layer. - Layout review with mechanical dwg superimposed (since sheet metal could violate CC to the PCB). - Thieving review (since thieving could violate CC). - Photo Artwork review (especially planes). - Also make sure the drawings tell the PCB fab. vendor not to put their logo smack in that nice clearing which is your CC! Obviously I left out a lot of the detail as to what we design for and what we specifically look for, but these are the higher granularity steps I routinely take. EMC would take more or less the same steps, just with different criteria. I hope this helps, Stephen At 09:46 AM 3/6/2002, you wrote: Hi Guys, I am being asked to review PCB's for EMC (and Safety) acceptance. I was going to try and collate a check list then I thought of this wonderful forum!! Does any kind person have such a thing as an EMC PCB Design Check list? Does any kind person have such a thing as an Safety PCB Design Check list? Kind Regards Alex McNeil Principal Engineer Tel: +44 (0)131 479 8375 Fax: +44 (0)131 479 8321 email: alex.mcn...@ingenicofortronic.com (See attached file: att1.htm) Technically, we refer to them as PCB CAD engineers. I omitted part of that, given the fact that it seemed redundant - PCB's being the topic of discussion. I now return you back to your job as Keyboard Engineer. Stephen At 11:59 AM 3/7/2002, Robert Wilson wrote: As a side issue to your comments, I find it interesting that you refer to a PCB designer as a CAD engineer . Does this mean that 20 years ago he would have been a Drafting Board engineer ? :) Kind of sad when the tool one uses is deemed to be more important than the job one is doing! Bob Wilson TIR Systems Ltd. Vancouver. -Original Message- From: Stephen Phillips [mailto:step...@cisco.com] Sent: March 6, 2002 9:49 AM To: Alex McNeil Cc: emc-p...@majordomo.ieee.org Subject: Re: EMC and Safety PCB Reviews Alex, Not really a thorough checklist per se, but for Safety - roughly this: Throughout this process, I prefer to make notes on paper doc's, and then sit with the CAD engineer to go over the review on his computer screen and make any changes right then. - Schematic review (identify and mark up areas such as exceeding SELV and TNV, identify critical nets). - Provide
RE: EMC and Safety Schematic and PCB Reviews
Hi Alex, You may very well need to create your own checklist as only you know your employer's products well enough to know what needs to be looked at during the design cycle. You may have to look for severity impacts on EMC (emissions and immunity), safety and telecom for product design/redesign and revision activities. If you honestly don't know what to look for in such a checklist, I would recommend attending EMC and Safety seminars. There are also some textbooks on the subjects. These can be very enlightening. From what you learn there, you will be better able to know what to look for and from that you will be better able to generate such a checklist. Also, you might want to entertain the notion of generating a general design spec which would detail compliance design requirements for your employer's products (the designers should then work from the spec). Once these requirements are documented in such a spec, generating a checklist from the spec should be quite easy. I hope this helps. Best regards, Ron Pickard rpick...@hypercom.com djumbdenstock@tycoint.c om To: emc-p...@majordomo.ieee.org, alex.mcn...@ingenicofortronic.com Sent by: cc: owner-emc-pstc@majordomSubject: RE: EMC and Safety Schematic and PCB Reviews o.ieee.org 03/07/02 12:55 PM Please respond to djumbdenstock Here's one we use for general guidance. It doesn't cover every situation, but it points us in the right direction. Best regards, Don EMC Check List.DOC -- From: Alex McNeil[SMTP:alex.mcn...@ingenicofortronic.com] Reply To:Alex McNeil Sent: Wednesday, March 06, 2002 11:38 AM To: 'emc-p...@majordomo.ieee.org' Subject: EMC and Safety Schematic and PCB Reviews Hi Guys, Sorry I should have mentioned SCHEMATIC and PCB LAYOUT review: Does any kind person have such a thing as an EMC Schematic and PCB Design Check list? Does any kind person have such a thing as a Safety Schematic and PCB Design Check list? Kind Regards Alex McNeil Principal Engineer Tel: +44 (0)131 479 8375 Fax: +44 (0)131 479 8321 email: alex.mcn...@ingenicofortronic.com -Original Message- From: Alex McNeil Sent: Wednesday, March 06, 2002 2:46 PM To: emc-p...@majordomo.ieee.org Subject: EMC and Safety PCB Reviews Hi Guys, I am being asked to review PCB's for EMC (and Safety) acceptance. I was going to try and collate a check list then I thought of this wonderful forum!! Does any kind person have such a thing as an EMC PCB Design Check list? Does any kind person have such a thing as an Safety PCB Design Check list? Kind Regards Alex McNeil Principal Engineer Tel: +44 (0)131 479 8375 Fax: +44 (0)131 479 8321 email: alex.mcn...@ingenicofortronic.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...@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 ---
Re: Don'r Get Caught Running a Red Traffic Light!
I read in !emc-pstc that Doug McKean dmck...@corp.auspex.com wrote (in 000401c1c6a6$72ed0010$cb3e3...@corp.auspex.com) about 'Don'r Get Caught Running a Red Traffic Light!', on Fri, 8 Mar 2002: Q: Did any of the cars move out of the way of the fire truck and in doing so some would have to move through the intersection and thus thru the red light? A: No. Reason: No one wanted to get a ticket running the red light. Be rather ironic that the fire truck was responding to the home of someone sitting at that intersection. Just something to think about. In Britain, it is a defence to show that you were clearing the path for an emergency vehicle. People who don't move for a fire tender are often 'informed' of this by the senior fire-fighter present. Paramedics seem to be less inclined to do so. OTOH, people will often move voluntarily for an ambulance. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- 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
Re: Don'r Get Caught Running a Red Traffic Light!
Don't know about CA, but in this state, yes, a driver would get a ticket. Drivers are required to yield as long as they don't break a law. At 08:37 AM 3/8/2002, Doug McKean wrote: Just as a side issue about remote monitoring of red-light runners ... One unintended consequence of cameras watching for people who run lights happened in Fremont about 2 years ago. A couple of stop lights were set up with cameras as an experiment. During the course of rush hour traffic one day at one of the experimental camera sites, an emergency vehicle was stuck behind several vehicles sitting for a red light. Apparently the fire truck was boxed in since the roads were several lanes wide and the truck was all the way over in a right lane. Lights and siren were blaring away. Q: Did any of the cars move out of the way of the fire truck and in doing so some would have to move through the intersection and thus thru the red light? A: No. Reason: No one wanted to get a ticket running the red light. Be rather ironic that the fire truck was responding to the home of someone sitting at that intersection. Just something to think about. Regards, Doug McKean --- 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 Bill Owsley, ows...@cisco.com 919) 392-8341 Compliance Engineer Cisco Systems 7025 Kit Creek Road POB 14987 RTP. NC. 27709 --- 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
EU Harmonized Frequencies
Are there any harmonized frequencies under the RTTE Directive? Is there a website for viewing the harmonized frequencies? Bob Heller 3M Product Safety, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 --- 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
RE: Laser Safety
I also thank you all that have responded. ---BeginMessage--- Thanks, I appreciate the input. Mark Schmidt Regulatory Compliance X-Rite Incorporated USA (616) 257 2469 mschm...@xrite.com mailto:mschm...@xrite.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...@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 ---End Message---
RE: Flammability rating question
Vertical thin material. The first part is the orientation of the test sample just as is 94 VX and the second part TM identifies thin material. Its thin enough that if used on its own it to would burn, but when used attached to someother surface it will not burn. Mostly I've sen it in tapes etc. If I remember correctly it has to be tested mounted to a madril of some sort to determine is ratings. Gary -Original Message- From: Gelfand, David [mailto:david.gelf...@ca.kontron.com] Sent: Thursday, March 07, 2002 2:06 PM To: EMC List Subject: Flammability rating question What does UL 94 VTM-0 mean? I saw it in a spec for thin insulating plastic. Thanks, David. David Gelfand Regulatory Approvals Kontron Canada 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 --- 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
Re: Don'r Get Caught Running a Red Traffic Light!
Just as a side issue about remote monitoring of red-light runners ... One unintended consequence of cameras watching for people who run lights happened in Fremont about 2 years ago. A couple of stop lights were set up with cameras as an experiment. During the course of rush hour traffic one day at one of the experimental camera sites, an emergency vehicle was stuck behind several vehicles sitting for a red light. Apparently the fire truck was boxed in since the roads were several lanes wide and the truck was all the way over in a right lane. Lights and siren were blaring away. Q: Did any of the cars move out of the way of the fire truck and in doing so some would have to move through the intersection and thus thru the red light? A: No. Reason: No one wanted to get a ticket running the red light. Be rather ironic that the fire truck was responding to the home of someone sitting at that intersection. Just something to think about. Regards, Doug McKean --- 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
References to out-of-date standards in EMC EN standards
The British National Committee is to make a proposal to CENELEC TC210 to update references to ENVs and IEC801 series standards so as to eliminate doubt about whether the referenced or the superseding standard should be used now. To support this proposal, examples of such references **in current EMC standards** are required. It's quite a task to search all the likely standards that have this defect, and I certainly don't have all of them in my collection. So YOU can help to bring this helpful project to a successful conclusion. Please send ALL of the information indicated below to me either by posting here or by direct e-mail: Number and year of the standard containing the out-of-date reference, number and year (if any) of the referenced standard, clause number where the reference appears. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- 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
Re: Analog PSTN approvals in Czech Republic
I read in !emc-pstc that j...@aol.com wrote (in 18e.476cd24.29b93caf@ao l.com) about 'Analog PSTN approvals in Czech Republic', on Thu, 7 Mar 2002: A modem that does not provide 60 mA limiting will be suitable for use in a wider range of countries, and will be less expensive to implement. The need for this limiter is being phased out in France, the only country that ever actually needed it for network compatibility. Understood. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- 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
