RE: Location of CE DoCs - electronic copies

2002-12-11 Thread richwoods
Has anyone on this list ever had an authority ask to see a DoC or TCF after the product was placed on the market? We have had two products audit tested, but no one has ever asked for these documents. Richard Woods Sensormatic Electronics Tyco International

RE: Receiver Requirements in ETSI 300 220

2002-12-11 Thread richwoods
EN 300220-1 contains the test requirements, but its reference is not published in the OJ. EN 300220-3 is published in the OJ and lists the sections of EN300220-1 that apply in order to comply with the essential requirements concerning article 3.2 of the RTTE Directive. As you noted, it lists

RE: Can 2.4GHz wireless phones be marketed in EU?

2002-12-11 Thread richwoods
See CEPT Recommendation 70-03 which can be found at http://www.ero.dk/ Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Hans Mellberg [mailto:emcconsult...@yahoo.com] Sent: Tuesday, December 10, 2002 4:46 PM To: emc-pstc Subject: Can 2.4GHz wireless

Conducted Emissions Testing of Intentional Radiators

2002-12-06 Thread richwoods
When are testing a FCC Part 15 intentional radiator operating below 30 MHz, and have encountered the situation where the emissions from the antenna is being received by the power cord and causing the system to fail conducted limits. The transmitter complies with the conducted limits with a dummy

RE: Vehicle Mounted PCB's

2002-12-05 Thread richwoods
David, my suggestion is to determine which is the worst case EMC environment - the applicable standards or the actual environment - and design for that. We had a similar problem with a particular CCTV installation. The CCTV rf immunity standard specifies 10 V/m; however, the guard watching the

RE: Where to buy electronic (PDF) copies of ENs

2002-11-22 Thread richwoods
I had a very good source of pdf ENs at the Swedish Standards Institute (SIS), then the Swedes had to go and change their web site. http://www.sisforlag.se/ This site use to be in English and it was clear that certain ENs were also in English. All they did was attach a national cover page onto

E-field probes

2002-11-22 Thread richwoods
I have found a very limited number of e-field probes with optical ports that are suitable for calibrating a radiated immunity chamber. They are: * Holaday probe with optical port sold by ETS-Lingren and Amplifier Research * Wandel Goltermann probe with Narda optical interface, both

RE: South Africa and SRD

2002-11-21 Thread richwoods
Wimpie Lyons at SABS was able to advise me of the safety and EMC requirements. Try him. lyon...@mail.sabs.co.za Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Kim Boll Jensen [mailto:kimb...@post7.tele.dk] Sent: Thursday, November 21, 2002 3:39 PM

RE: Compliance Engineering Status Report

2002-11-15 Thread richwoods
Please disregardagain. Sigh. Where is my coffee? -Original Message- From: WOODS, RICHARD Sent: Friday, November 15, 2002 10:02 AM To: 'emc-pstc' Subject: Compliance Engineering Status Report File: deliverables.docFile: Test sched master.xls

Compliance Engineering Status Report

2002-11-15 Thread richwoods
deliverables.doc Test sched master.xls deliverables.doc Description: MS-Word document Test sched master.xls Description: application/excel

Radiated immunity testing above 1 GHz

2002-11-13 Thread richwoods
I need to make a decision on an amplifier for radiated immunity testing in the 1-2 GHz range. The choices appear to be a new solid state amplifier ( I have not located a used one) or a used TWT amp. Is anyone using a TWT amplifier for radiated immunity testing above 1 GHz? Do I need to be

E-field probe for immunity testing

2002-11-12 Thread richwoods
I am seeking sources for an E-field probe for radiated immunity testing other than Holaday and Amplifier Research. Any suggestions? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety

Signal Generator

2002-11-11 Thread richwoods
I am seeking to purchase (used) one of the following signal generators. Please contact me if you have one available in the USA. Agilent/HP 8648B with option 1E6 IFR/Marconi 2023B IFR/Marconi 2024 Rhode Schwarz SML02 with option SML-B3 Similar with frequency up to 2 GHz, 400 Hz and 1 kHz

EU DoC

2002-11-06 Thread richwoods
Company A builds a device for company B which sells the device in the EU under their own brand name. The device is subject to a Declaration of Conformity, and both companies are located within the EU. Must both companies issue a Declaration? Richard Woods Sensormatic Electronics Tyco

EN60742

2002-11-04 Thread richwoods
Is EN60742, Isolating Transformers, identical to IEC60742 or does it contain deviations? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list.

Russian Radio Certification

2002-11-01 Thread richwoods
I would like to hear from anyone who has obtained Russian certification for short range (low power) radio devices. How did you do it? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety

RE: Shield Room Lighting

2002-10-31 Thread richwoods
We have the same frequent burn out problem and we also have attributed it to the filters. We just keep replacing them. Has anyone tried the rugged bulbs marketed for use with garage door openers or ceiling fans or have tried the extended life bulbs? Do they last longer in chamber use to justify

RE: Surge - injection point on screened cable

2002-10-31 Thread richwoods
This is a good example of an inarticulate clause in a standard. One sentence in clause 7.5 reads Normally, the maximum length of the specified shielded cable shall be used. But the following sentence reads With respect to the frequency spectrum of the surge 20 m length of the specified shielded

Dual band transmitter

2002-10-30 Thread richwoods
I have a dual band transmitter that I must test per FCC Part 15. The device operates simultaneously at 13.56 MHz and 915 MHz and there is one external antenna for each band; however the output is time muxed such that transmission occurs on only one band at any given time. In order to minimize the

RE: Do I need to Test for Harmonics?

2002-10-28 Thread richwoods
Scott, you do not have to test for power line harmonics or flicker if 1) your product is not mains powered, and 2) you have no intention of selling it along with a particular power source, and 3) you do not specify that it be used with a particular power source. If the choice of power source is

RE: Layered Reinforced Insulation

2002-10-28 Thread richwoods
OK, I'll get more specific. I have an external interconnecting cable that contains hazardous voltages. Because of the application, in the USA I must use UL Listed CL3P cable which is rated for use in risers and air handling spaces (smoke requirements of the National Electrical Code). The

RE: Compliance Engineering Status Report

2002-10-28 Thread richwoods
Oops! I need more coffee. Please disregard and delete. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: WOODS, RICHARD Sent: Monday, October 28, 2002 9:16 AM To: 'emc-pstc' Subject: Compliance Engineering Status Report

Compliance Engineering Status Report

2002-10-28 Thread richwoods
Test sched master.xls deliverables.doc Test sched master.xls Description: application/excel deliverables.doc Description: MS-Word document

China CCC Certification

2002-10-28 Thread richwoods
I received the following information from a US organization. Harmonics testing has been added as part of the conversion from CCIB and CCEE to the new CCC mark. IEC 61000-3-2 (Limits for Harmonic Current Emissions) is similar in content to GB 17625.1. Is this true? Richard Woods Sensormatic

GOST Certification

2002-10-25 Thread richwoods
For a manufacturer located in the USA, and for equipment that has certifications from UL and TUV Rheinland, what is the recommended method (i.e., least time, effort and money) to obtain GOST certification? Richard Woods Sensormatic Electronics Tyco International

Layered Reinforced Insulation

2002-10-25 Thread richwoods
Consider the insulation construction for an external interconecting cable connected to secondary hazardous circuits of ITE (EN60950). Is it permissible for the reinforced insulation to be constructed of two layers (e.g., conductor insulation plus external jacket) if the total thickness is at

RE: Frequency Allocations for EU Countries

2002-10-22 Thread richwoods
You can find the EU allocations at http://www.ero.dk/ Richard Woods Sensormatic Electronics Tyco International -Original Message- From: scott@jci.com [mailto:scott@jci.com] Sent: Tuesday, October 22, 2002 11:53 AM To: emc-p...@majordomo.ieee.org Subject: Frequency Allocations

RE: WEEE RoHS

2002-10-17 Thread richwoods
Where can the latest versions be found? The WEE site seems to have older versions. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Neil Helsby [mailto:nei...@solid-state-logic.com] Sent: Thursday, October 17, 2002 3:17 AM To:

Performance Criteria A

2002-10-16 Thread richwoods
Most of the CENELEC immunity standards specify performance criteria A as follows: The equipment shall continue to operate as intended without operator intervention. No degradation of performance or loss of function is allowed below a performance level specified by the manufacturer when the

RE: RTTE - receive only equipment

2002-10-15 Thread richwoods
Good question Amund. I found nothing in the Directive that provides a clear direction. I think that sound of silence from the rest of the group means that no one knows the answer. I checked the UK's notification form and there is only one place where they ask about the receiver: Duplex direction

RE: LED's and laser safety?

2002-10-14 Thread richwoods
I sure would love to hear that argument. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Warren Birmingham [mailto:war...@comfortjets.com] Sent: Friday, October 11, 2002 6:06 PM To: emc-p...@ieee.org Subject: Re: LED's and laser safety? Gary, I was

RE: requirement for surge and EFT

2002-10-11 Thread richwoods
George, the product has to comply with the standards. In this particular case, the product consists of two parts that operate together, and must therefore be tested as a system. All of the power line tests apply when the when the complete system is powered and operating. Richard Woods

RE: LED's and laser safety?

2002-10-10 Thread richwoods
Gary, I have to be concerned about LEDs also and have found that I need to consult EN 60825-1 in order to determine the design and documentation requirements for Class II LEDs. Our EU safety agency requires that we demonstrate compliance even with Class 1 devices. For the lower emission LEDs,

RE: Question regarding something slightly unusual ...

2002-10-09 Thread richwoods
Well that process doesn't seem to work that well either. I have a mouse and keyboard that both have a UL Recognition mark. The mouse has a GS mark and the keyboard has a Bauart mark. Of course, the reason the keyboard has the Bauart mark rather than the GS mark is that it does not comply with the

Creepage

2002-10-07 Thread richwoods
What is a good source that explains the rational for the values for creepage distances? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list.

RE: Harmonised standards and frequencies

2002-09-30 Thread richwoods
Unfortunately, parameters contained in harmonized specifications do not indicate that the frequency band is harmonized. For that, you will have to check out CEPT recommendations and decisions and then determine if the target countries have adopted them. Sigh, one would wish for an easier process.

Radiated Immunity Testing

2002-09-26 Thread richwoods
What types of chamber effects, if any, should one consider when determining the extra factor to be applied to determine the forward power applied to the transmit antenna. Potential effects might include loading of the antenna by the anechoic materials or the chamber itself and resonance's. If

RE: Electrical safety in Canada

2002-09-24 Thread richwoods
Be careful. First a safety agency has be accredited by the Standards Council of Canada (I think that's the name). However, their accreditation must now be accepted by each of the provinces who actually have legal jurisdiction over electrical installations. When UL first claimed accreditation,

RE: safety testing in the USA

2002-09-20 Thread richwoods
Greg, OSHA regulations allow for an alternataive to Listing. The owner of the equipment may create a construction file describing how safety is accomplished and have the file available for OSHA review. Richard Woods Sensormatic Electronics Tyco International -Original Message- From:

RE: safety testing in the USA

2002-09-19 Thread richwoods
Here is a very good discussion of the leagalities. http://www.conformity.com/A02F18.pdf Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Gary McInturff [mailto:gary.mcintu...@worldwidepackets.com] Sent: Thursday, September 19, 2002 12:40 PM To:

RE: safety testing in the USA

2002-09-19 Thread richwoods
Some states (e.g., North Carolina), counties (e.g., Orange, CA) and cities (e.g., Los Angeles and San Francisco)have a legal requirement that all electrical products for sale must be Listed. Some local electrical codes (e.g., Oregon) require electrical equipment be Listed. Since my company sells

RE: EMC immunity requirements in Canada?

2002-09-19 Thread richwoods
No. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: am...@westin-emission.no [mailto:am...@westin-emission.no] Sent: Thursday, September 19, 2002 8:22 AM To: emc-p...@majordomo.ieee.org Subject: EMC immunity requirements in Canada? As far as I

Radiated Immunity Testing

2002-09-19 Thread richwoods
Using the antenna factor of a particular antenna, one can compute the theoretical power required to create a specified E-field at a specified distance. Without over specifying the power amplifier (assume Class A), what minimum safety factor should be added to the theoretical values to account for

RE: Acousic Noise from ITE

2002-09-18 Thread richwoods
Thanks for that update. I forgot to mention that the agency said that EN 27779 (ISO 7779) is the appropriate measurement standard. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Luttrell, Lyle [mailto:lluttr...@peakstor.com] Sent: Wednesday, September

RE: Current from Car 12V cigarette lighter socket

2002-09-18 Thread richwoods
Let's think about this for a moment. The output power from a limited power source is limited such that there is insufficient energy to start a fire. However, the purpose of a a cigarette lighter is to start a fire. No, it is not a limited power source. Can you make it one? Yes, by placing the

RE: Acousic Noise from ITE

2002-09-18 Thread richwoods
According to a well known German safety agency, there are no normative EU or German national acoustic limits for ITE. The 3rd GS Ordinance on product safety includes the requirements of the LVD and Machinery Directive, but the requirement for acoustic noise is understood to apply only to

RE: thermocouple welder

2002-09-18 Thread richwoods
Perhaps he needs a sign based upon one found in a MIT lab: Do not stare into beam with remaining eye Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Gonzalez, Kenneth P (Rocky) [mailto:kpgon...@ingr.com] Sent: Tuesday, September 17, 2002 3:20 PM To:

RE: EMC Chamber Relocation

2002-09-17 Thread richwoods
We thought about buying used chamber rather than moving ours. However, we found the cost of a used chamber including the installation cost was such that we would have rather bought a new one. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Pettit,

RE: EMC Chamber Relocation

2002-09-17 Thread richwoods
Jeff, we moved our chamber several times and had someone different do it each time based upon lowest quote. Some of your panels could be accidentally damaged during the move. We had some panels starting to separate due to moisture. Most were salvageable, however. Also, we found some corroded

Acousic Noise from ITE

2002-09-16 Thread richwoods
Are there any EU or national (e.g. GS) normative requirements to comply with any of the following standards or any other acoustic standards for ITE? EN27779 Acoustic measurement of airborn noise emitted by computer and business equipment. EN29295 Acoustic measurement of high frequency noise

Radiated Immunity Testing 1-2 GHz

2002-09-13 Thread richwoods
What model signal generator, amplifier and antenna you are using to immunity test at 3V/m between 1-2 GHz. Are you testing at 3m? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety

EN 60825-1 and LEDs

2002-09-12 Thread richwoods
This question is addressed to those testing visual LED emissions to EN 60825-1. What test equipment are you using to measure the apparent source size? Given that LEDs are about 5 mm in diameter, LED fiber optic transmitters are about 2 mm in diameter and plastic fiber optic cable is about 1 mm in

Signal Generation

2002-09-10 Thread richwoods
Certainly someone out there has devised a simple, lost cost method of extending the operating frequency of their signal generator by using some type of harmonic generating device such as a mixer or step recovery diode and filters. In one application, I need to extend a 1 GHz generator to 2 GHz

RE: FCC Testing of Intentional Radiators

2002-09-10 Thread richwoods
Here is the link http://www.conformity.com/0208izzy.pdf Richard Woods Sensormatic Electronics Tyco International -Original Message- From: John Barnes [mailto:jrbar...@iglou.com] Sent: Tuesday, September 10, 2002 9:17 AM To: emc-p...@majordomo.ieee.org Subject: Re: FCC Testing of

FCC Testing 2.45 GHz Transmitter

2002-09-10 Thread richwoods
Consider a 1W frequency hopping, spread spectrum transmitter operating at 2.45 GHz. The FCC released a Public Notice on acceptable test methods (Filing and Measurement Guidelines for Frequency Hopping Spread Spectrum Systems) where they recommend that the spurious radiated emissions in the

RE: Telephone headsets

2002-08-30 Thread richwoods
Chris, the CE marking indicates that the product complies with all applicable directives. The only two directives that might apply is the LV and EMC directives. However, the LVD does not apply since the working voltages are low. The EMC directive would apply if your equipment is likely to cause

RE: IEC Guide 104

2002-08-28 Thread richwoods
On the whole, of course safety is involved; but that is not the question at hand. What I am trying to get at is that a particular requirement/test may not be safety related in a particular application. That occurs from time to time in ITE testing, so is there any reason why the same investigative

JIS C 6861

2002-08-27 Thread richwoods
Is JIS C 6861, mechanical standard for plastic fiber optic cable, the same as IEC 6079-2? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list.

IEC Guide 104

2002-08-27 Thread richwoods
EN 60825-1 is a normative reference in Annex ZA of EN 60950. Clause 1.1 of EN 60825-1 says: When a laser system forms part of equipment which is subject to another IEC product safety standard . . . this part 1 will apply in accordance with the provisions of IEC Guide 104, for hazards resulting

RE: Halogen free cables for the EU

2002-08-26 Thread richwoods
The proposed WEEE Directive bans certain flame retardants. http://europa.eu.int/comm/enterprise/environment/index_home/waste_management /waste_management.htm#WEEE Directive You will have to paste that link back together if it line wrapped. Richard Woods Sensormatic Electronics Tyco

RE: EMC Directive

2002-08-21 Thread richwoods
John you are correct and your friend is not. You can find the Commission's explaination at the following site. http://europa.eu.int/comm/enterprise/electr_equipment/emc/guides/emcguide.ht m Richard Woods Sensormatic Electronics Tyco International -Original Message- From: John Juhasz

RE: Just how many to test...???

2002-08-16 Thread richwoods
My opinion is based upon an assumption - the product is intended to be operated from a mains connected power source. I would test it with the power sources that would optionally be provided with the product and test the system at 120V and 230V. Richard Woods Sensormatic Electronics Tyco

repetitive stress

2002-08-16 Thread richwoods
We are developing a hand operated mechanical device. I am looking for regulations or guidelines which manufacturers must comply with to show due diligence with designs in avoiding repetitive stress related issues. Richard Woods Sensormatic Electronics Tyco International

RE: requirements for ITE power cords

2002-08-15 Thread richwoods
George, the ITE safety standards require that the plug be rated for at least 125% of the equipment rating. I believe that the US National Electrical Code has the same requirement. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: George Stults

RE: Canadian EMC

2002-08-15 Thread richwoods
Compliance is legally required ofr ICES-003. You will find that the requirements are the same as FCC part 15 except for user information and equipment marking. You can download the standards at http://strategis.ic.gc.ca/SSG/sf01751e.html Richard Woods Sensormatic Electronics Tyco International

Laser Warnings

2002-08-14 Thread richwoods
Can someone tell me where I can find translations of the following, especially German. Caution - Class 2 laser radiation when open. Do not stare into beam. Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC

Laser Emissions Measurement

2002-08-13 Thread richwoods
Consider a Class 1 Laser Product. Once the protective cover is removed for service, it is physically possible for the 12 mm probe to be inserted into the beam where Class 2 levels are present; therefore, human exposure of a finger is possible. However, it is not physically possible to directly

Laser Testing

2002-08-13 Thread richwoods
Can someone suggest sources of test equipment for measuring Class 1 to Class 2 LED emissions to EN60825-1 and fiber optic cable emissions to EN60825-2? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society

RE: Need copies of specs addressing ISM bands in Europe

2002-08-12 Thread richwoods
Frequency spectrum management is the reponsibility of each member state; however, CEPT does issue recommendations and decisions that may or may not be adopted by those states. Check out those recommendations and decisions at the CEPT site. http://www.ero.dk/ Richard Woods Sensormatic

Fiber Optic Systems

2002-08-09 Thread richwoods
We plan to purchase for resale an LED fiber optic transmitter, receiver and cable that will provide a communications link to our products. While we will resell these devices as optional accesssories for our products, the accessories will retain the original manufacturer's brandname. We will

RE: 2.4 GHz in Pakistan

2002-07-26 Thread richwoods
For more information contact Standards and Specifications Pakistan Telecommunications Authority Headquarters, Room 116 Sector F-5/1 Islamabad Tel: + 92 51 287 130 Fax: + 92 51 287 120 Richard Woods Sensormatic Electronics Tyco International -Original Message- From:

RE: Pacemakers

2002-07-19 Thread richwoods
Check the AAMI site for possible US standards. http://www.aami.org/ Devices are tested to FDA requirements by Georgia Tech Research Institute. Contact Jimmy Woody for info. http://www.gtri.gatech.edu/ A1:1995 of EN 50061:1988 covers immunity of implantable pacemakers. PrEN 45502-2-1 is a new

EU Electrical Codes

2002-07-18 Thread richwoods
We need to embed secondary wiring (50V) into a narrow trench cut into a concrete floor located at ground level. The installation has to be compliant with the electrical code used in the EU. It has been suggested that we use flexible conduit such as the one listed at the this link.

RE: EN60950 3rd vs EN60950-1

2002-07-16 Thread richwoods
07/15/02 11:45 AM Please respond to richwoods A couple of months ago, I asked the group if I should be using EN60650-1. The answer was no, until and unless the particular part was published that covered my product. In other words, the new edition

RE: EN60950 3rd vs EN60950-1

2002-07-15 Thread richwoods
A couple of months ago, I asked the group if I should be using EN60650-1. The answer was no, until and unless the particular part was published that covered my product. In other words, the new edition is incomplete and subsequent parts will need to be published before it can be used instead of

RE: Sources for EMC/EMI/ESD Standards?

2002-07-11 Thread richwoods
Sweden has downloadable CENELEC standards in English. http://www.sisforlag.se/katalog/eng_default.asp Richard Woods Sensormatic Electronics Tyco International -Original Message- From: John Barnes [mailto:jrbar...@iglou.com] Sent: Wednesday, July 10, 2002 9:06 PM To:

RE: Measurement Consistency of OATS

2002-07-08 Thread richwoods
We have noticed a change in our OATS characteristics depending upon the dampness of the area. It is especially noticeable this time of year when we get a lot of rain in Florida. Does anyone else experience this phenomena? More to your question Mat, the major contributors to the measurement

RE: RTTE EU notifications - fees

2002-07-02 Thread richwoods
We receive the invoices too. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: am...@westin-emission.no [mailto:am...@westin-emission.no] Sent: Tuesday, July 02, 2002 4:31 AM To: Forum Safety-emc Subject: RTTE EU notifications - fees Hi all, We have

Home Network

2002-06-21 Thread richwoods
I want to upgrade my 1MB/sec home network that uses my phone line. I have several choices, but would like to hear from others before I make the leap. 1) I understand that 10MB/sec Ethernet will operate on Cat 3 twisted pair and that normal phone wiring is Cat 3. If use my existing phone wiring

RE: SI Unit for volume

2002-06-21 Thread richwoods
Nevermind. I found the answer to be cubic meters. -Original Message- From: WOODS, RICHARD Sent: Friday, June 21, 2002 8:28 AM To: 'emc-pstc' Subject: SI Unit for volume When stating a cubic volume in SI units, is liters the correct unit. If not, what is the

SI Unit for volume

2002-06-21 Thread richwoods
When stating a cubic volume in SI units, is liters the correct unit. If not, what is the correct method of expression? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety Technical

Mexico Mains Voltage

2002-06-18 Thread richwoods
I understand that Mexico uses a 220V Wye distribution system such that the single phase voltage is 127V. What low line and high line voltages should one consider as being normal where equipment should continue to operate as intended? I ask this because I doubt that 127V is really the nominal

RE: Network Camera and EMC?

2002-06-18 Thread richwoods
John, the ENs that you will use will depend upon the intended application. For emissions, EN 55022 applies for ITE applications, EN55103-1 for professional use and there may be other standards for other applications such as instrumentation and process control. There are at least two immunity

RE: An ESD question

2002-06-12 Thread richwoods
Humidity is not the only variable, and may not be your major variable. Repeatability of ESD results is a statistical problem. Consider the variables: -humidity -approach speed (for non-contact discharge) -angle of the probe (for non-contact discharge) -synchronization of the ESD application with

RE: DOC Assembled from tested components

2002-06-10 Thread richwoods
Ken, a UK court ruled that CE+CE does not equal CE. They fined at least one PC reseller because they integrated and sold PCs based upon the belief that CE+CE=CE. Obviously, the court thought otherwise. Richard Woods Sensormatic Electronics Tyco International -Original Message- From:

Forensic Lab

2002-06-07 Thread richwoods
I am seeking a forensic lab that can analyze the probable cause of a fire in electrical equipment. The lab must be located in the USA and preferably located in the East or Central part of the country. Any referrals would be appreciated. Richard Woods Manager Compliance Engineering Sensormatic

Spectrum Allocation

2002-06-07 Thread richwoods
I am seeking a consultant who can advise us on national spectrum allocation and power limits in various countries for a particular type of short range device. The major Pacific rim countries are of particular interest. I would appreciate any referrals the group may offer. Richard Woods Manager

RE: Coaxial Switches - use with spectrum analyzer and gear?

2002-05-23 Thread richwoods
That information is from an application document found on the Dow Key web site. I can't say that I fully understand it myself. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Thursday, May 23, 2002

RE: Coaxial Switches - use with spectrum analyzer and gear?

2002-05-23 Thread richwoods
Here is what I have learned about switches this week. There are very low power rated switches for usual ATE applications, power switches (circa 200W) and high power switches. For power switches, the insertion loss is in the order of 0.2 db over a very wide frequency range (DC to many GHz). The

RF Loss Question

2002-05-22 Thread richwoods
I am adding a RF device into my transmission path, and the device has a VSWR of 1.2 and an insertion loss of 0.2. Will I end up with a total loss of 0.6 dB due to a loss of 0.4 dB due to the VSWR plus the 0.2 dB insertion loss? Richard Woods Sensormatic Electronics Tyco International

Coaxial Switches

2002-05-21 Thread richwoods
Other than Adilent, what are some other sources for low power (1W) and high power (100W) coaxial switches for frequencies up to 2 GHz? Richard Woods Sensormatic Electronics Tyco International --- This message is from the IEEE EMC Society Product Safety

RE: Emission Standards for Cell Phones and Antennas in Switzerlan d

2002-05-21 Thread richwoods
Switzerland has adopted the RTTE Directive. In doing so, any CENELEC exposure standards that address your products would be applicable for the general public. Those standards are based upon the Council Recommendation which in turn is based upon ICNIRP 1998 guidelines for exposure of the general

Directional Coupler

2002-05-20 Thread richwoods
I am seeking sources for a 150W directional coupler for the frequency range 80-2000 MHz. The combination of the power level and frequency range is eliminating many sources. Any recommendations? Richard Woods Sensormatic Electronics Tyco International ---

Draft DIN VDE 0848-3-1 of May 2002

2002-05-07 Thread richwoods
The subject draft on protection of persons with implanted medical devices from EM fields has been issued for comment. Unfortunately, all I have is a scanned German language document, so I can't use an electronic translator (tried OCR and got a useless result). Does anyone have a Word, PDF or

RE: Re[2]: Thermal Testing

2002-05-07 Thread richwoods
This almost appears to be too good to be true. Let's see if I have this right. 34970A Data Acquisition/Switch Unit with software, $1290 34901A 20 Channel Mux, $395 34307A Thermocouple kit with 10 thermocouples, $98 Total for a 20 channel thermocouple system is $1881. That's cheap! OK, what

Class 2 LED in ITE

2002-05-02 Thread richwoods
We are developing an ITE product for the EU market that includes a Class 2 LED that produces Class 1 emissions outside the product. After review of EN60950 and EN60825-1, I believe that the following requirements apply. The clause references are in parentheses. When assembled for normal

RE: General Product Safety Directive

2002-04-30 Thread richwoods
Well, this series sure took a left turn and accelerated hurriedly out of site of the original intent which was to determine what the term consumer means as used in the GPSD. The imaginary product example I put forth was intended solely to support the question, and I in no way advocated that such

RE: CE MARKING A SYSTEM

2002-04-30 Thread richwoods
Gordon, cosider constructing a Technical Construction File (TCF) and submitting it to a Competent Body. Your product may comply with the essential requirements when operating in its intended environment without the need to apply the full industrial strength tests. At least, you could make that

General Product Safety Directive

2002-04-25 Thread richwoods
Let's take an example of a non-rechargable 9V battery operated ITE product intended soley for business use; and due to its nature, it is highly unlikely to be used by laymen outside that business environment (i.e., not in the home). That product is not subject to the LVD, but it might be subject

ISN for EN55022 Network Testing

2002-04-23 Thread richwoods
I would like to know what members of the group are using for an ISN for network emissions testing per alternative 1 of EN55022:1998 (clause 9.5.1.1). Can a CDN-T2 per EN61000-4-6 be used? Can the EM clamp per EN61000-4-6 be used as the ferrites for testing with shielded cables per C.1.2?

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