RE: Different shades of UL

Chris: you probably will get this question answered by many people. go to the following link and you will find all you need http://www.ul.com/mark/index.html Jim Allan Manager, Engineering Services Kentrox LLC 1619 N Harrison Parkway Sunrise, FL, 33323 E-mail james_al...@milgo.com Phone (954)

RE: ESD Immunity Testing

Richard: The only thing that I might add to your list is that digital devices frequently (always?) have software or firmware driven error recovery routines. The effect of a single zap can invoke these routines which must be allowed to run to completion before another zap is applied or the test d

RE: STP vs FTP Ethernet cables (2)

Paolo: Try this link to Quabbin wire company. It is a product selector guide with the types of wire used for different applications. All Ethernet applications are 100 ohm characteristic impedance and only have overall shields if shielded. Telecom cable (T1, DSL etc.) if shielded, are also 100 o

RE: Typing Shortcuts

This link will take you to enough chat abbreviations to keep you busy for weeks http://www.kelseypub.com/irc/abbrev.shtml Jim Allan Manager, Engineering Services Milgo Solutions LLC 1619 N Harrison Parkway Sunrise, FL, 33323 E-mail james_al...@milgo.com Phone (954) 846-3720 Fax (954) 846-569

RE: EN60950 - Changes between 1992 & 2000 Editions

John: If you can get a copy of Conformity for May 2001 there is a comparison of UL 1950 3rd Ed with UL 60950. This is not exactly what you asked for but it may be 90% there. http://www.conformity.com/ Jim Allan Manager, Engineering Services Milgo Solutions LLC 1619 N Harrison Parkway Sunrise,

RE: Ethernet baluns

try these links http://www.etslan.com/Download/cat2k_ld.pdf http://www.cliffordvt.com/sande_text.html http://www.batm.de/en/products/balun/p05.htm the last one seems to have the easiest one to find There are lots more search yahoo +10base2 +balun Jim Allan Manager, Engineering Services Milgo

RE: AC connectors and Line Cords

Chris: Try Panel Components. This link takes you to their euro cord http://www.panelcomponents.com/scripts/wsisa.dll/p65form.p?w_part=86557130 this link takes you to their "all" list of cordsets. http://www.panelcomponents.com/scripts/wsisa.dll/p65list2.p?w_country=ALL If you do an "edit"

RE: Korean Power Cord ??????

When in doubt try http://www.panelcomponents.com/guide.htm I have to admit that it is confusing with the US plug specified for 220 volt applications. Jim Allan Manager, Engineering Services Milgo Solutions LLC 1619 N Harrison Parkway Sunrise, FL, 33323 E-mail james_al...@milgo.com Phone (954) 84

RE: RTTE Directive

Amund has opened my eyes to the literal meaning of R&TTE equipment by pointing me to the equipment list. I thought I had a good idea of what is covered but now I am not sure. Item 4 under terminal equipment states Wired data equipment (X.21, X.25, Ethernet, token ring, token bus, TCP/IP, frame r

R&TTE directive list of harmonized stds.

Group: Help me here. I know I must be overlooking something. The R&TTE Directive 1999/5/EEC refers me to the EMC Directive 89/336/EEC. When I search the list of harmonized standards under 89/336/EEC I do not find any reference to either EN 61000-4-X or EN 60555-4-X What am I missing and how does

RE: EN61000-3-2 Amendments.

In a nutshell how did A14 change 61000-3-2. I don't have a copy of A14 yet. Jim Allan Manager, Engineering Services Milgo Solutions LLC 1619 N Harrison Parkway Sunrise, FL, 33323 E-mail james_al...@milgo.com Phone (954) 846-3720 Fax (954) 846-5693 > -Original Message- > From: Jim C

RE: Gnd grid

For those that don't know, Kemet the capacitor company has a very useful downloadable capacitor impedance calculator available on their web page. Go get it and try it, http://www.kemet.com/kemet/web/homepage/kechome.nsf/vabypagename/spicesoft Jim Allan Manager, Engineering Services Milgo Solutio

RE: IEC 825.

Bob: IEC 825-1 is a document approximately 3/8 inch thick. Its entire content is devoted to answering the question you asked. Unfortunately the answer is totally obscured by the complex and unfamiliar symbols used in the calculations. If you are fortunate enough to find someone on this board to

RE: Embedded Microstrip Co Query

Ron: try this link to UltraCad. They have downloadable freeware that does lots of wonderful stripline and microstrip calculations. The help file contains the equations used if you want to get into that. http://www.ultracad.com/calc.htm > -Original Message- > From: Ron Pickard [SMTP:

emc-pstc@listserv.ieee.org

The way I read my fresh new copy of the "New Blue Guide" thanks to Art Michael and others yesterday the paragraph immediately preceding the snip included below by Kim tells the story. I am sorry that I can't include the text verbatim but my copy is PDF format. The paragraph defines products that m

RE: Fwd:R&TTE directive

Does anyone have a link to a copy of the "Blue Guide" mentioned by Tony below? Jim Allan Senior Compliance Engineer Milgo Solutions Inc. E-mail james_al...@milgo.com > -Original Message- > From: Tony Reynolds [SMTP:reyno...@pb.com] > Sent: Tuesday, May 23, 2000 10:56 AM > To: k...@i-d

Need a substitute part

HELP! I am looking for an equivalent to a connector from Spectrum Control part number 93538-1. This is a shielded 8 position modular phone jack with a capacitive filter of 110 pf at 710VDC on each pin. It was formerly Amp part number 93538-1 before Spectrum Control bought the rights. Any one out

RE: StripLine

A few years ago I picked up a freeware download on stripline and microstrip from an outfit called UltraCAD. Here is a link to their web page. It is full of useful and interesting info. The freeware is a program with a graphical interface that lets you put in the parameters you want to control an

RE: modest proposal

Muriel: Of time in when I perdo the paciencia with these babacas. Generally, this forum is good, but the times have as much boçalidade Well you sure stumped Babel Fish with some of that one. I for one respect the willingness of the non-Americans to put up with our arrogance and to converse with

RE: Looking for Ferrite Bead

Derek: Try Steward at http://www.steward.com/emi/circuitboards/hicurrentchips.html for single chip devices up to 8 amps or http://www.steward.com/emi/circuitboards/multhighcurrent.html for multiline ferrite blocks. You should find what you need there Jim Allan Senior Compliance Engineer

RE: Laotian power cords?

My company appears to agree with you about the US style being used in Laos. When in doubt check the Panel Components Corp web site http://www.panelcomponents.com/guide.htm Jim Allan Senior Compliance Engineer Milgo Solutions Inc. E-mail james_al...@milgo.com > -Original Message- > From:

RE: Y3K

Seems like I remember a trade magazine editorial many years ago when Hertz was first being used in the US by NASA. This editor was of the opinion that Steinmetz was the first practical user of alternating current systems and thus deserved the honor more than Hertz. Since Steinmetzes was a bit of

Telecom Web list of agency sites

Some time ago Phillips Telecom Web - Worldwide List of PTT's & Telecom Authorities had a web site that listed the world agencies for telecom approvals. This seems to have been moved or lost. Does anyone know the link to it if it still exists? Jim Allan Senior Compliance Engineer Milgo Solutio

RE: Multi-Standards Haze

George and others: Perhaps the answer can be found in the fact that I just issued our annual company purchase order for ETSI membership in the amount of $11,000. It might be no wonder the ETSI standards are available for free on the internet and others are not. That having been said, I think a ca

RE: Doubt on household equipment interference

Muriel: If you have access to a ferrite core (ring shaped) try winding the cord of the blender two to three turns through the core. This might reduce the RF in the line enough to make the interference something that can be acceptable. There is also the possibility that the interference is radiate

RE: Heat Calculation

http://www.ios.doi.gov/pam/eneratt2.htm Give the above link a try. 3412 BTU = 1 kWh 1 watt = 3.412 BTU/Hr 293 watts = 1000 BTU/Hr. Watts dissipated = watts inDon't confuse volt amps with watts. Jim Allan Senior Compliance Engineer Milgo Solu

Colors of indicators

Several years ago I remember that indicators could not be red in color. This requirement seems to have gone away per EN60950 1.7.8.2. Could the group provide me with a bit of history as to where the original requirement to be "not red" came from. Was it a part of the German GS mark requirements or

RE: EnergyStar..

George: The best place to start on this subject is the DOE web page for Energy Star A search on Alta-Vista returned over a half million hits so you should have plenty to choose from. http://www.epa.gov/appdstar/esoe/logo_use.html Jim Allan Senior Compliance Engineer Milgo Solutions Inc. E-mail ja

RE: FCC part 15 text

Kim: the following is a cut and paste from the FCC rules found on the RCIC web site Sec. 15.19 Labelling requirements. (3) All other devices shall bear the following statement in a conspicuous location on the device: This device complies with part 15 of the FCC Rules. Operation is subject to the

RE: Ferrite pads vendors

Steward in Chattanooga (615) 867-4100 also makes them but I would not put much hope in them being a cure-all. Jim Allan Senior Compliance Engineer Milgo Solutions Inc -Original Message- From: salba...@hns.com [SMTP:salba...@hns.com] Sent: Tuesday, March 30, 199

RE: Telecom CE marking

Give this a try. Link to the BABT site http://www.babt.co.uk/public/Approvals/index.htm and select the graphics button on the left of the screen. This will bring up several Icon graphics, one of which is the CE 168 X mark indicating BABT approva

Import requirements

Can anyone on this board help me out with the requirements for import of ITE into Saudi Arabia? Do they have specific national requirements? Are they accepting of a DOC as is the EC? Perhaps UL marks are enough? What about EMC? What I am looking for is information that will allow me to clear cus

Company Name Change

My company is in the process of undergoing a name change. Is there any advice from the board as to pitfalls and oh-oh's that have been experienced as I begin the process of having product safety, EMC and Telecomm registration certificates changed over to the new company name. What I am looking for

RE: Conductivity Question

Many years ago when Galvaneel first was proposed as a substitute for zinc plated cold rolled steel IBM did a considerable amount of empirical testing of the relative EMC merits of the two materials. First was only the power supply enclosure and then later the entire PC chassis. In all of the tests

RE: Yellow Zinc

I will second what Chris says. The yellow zinc has a surface resistance that must be penetrated in order to have conduction across joints. Jim Allan Racal-Datacom -Original Message- From: James, Chris [SMTP:c...@dolby.co.uk] Sent: Thursday, October 15, 1998 5

RE: Low power consumption requirement

Arthur: Approximately 5 years ago there was a program sponsored by the US department of energy called the "Energy Star" program that does just what you mentioned. Someone in government did a study and calculated how many watts were being wasted daily by all of the PCs sitting in an idle state. Th

RE: Recommendations for PCs

Funny how the same experience can lead to different conclusions. Like you, I have found that desktop systems do radiated more with the monitor on top than with it beside the unit. At that time we did extensive tests to find out why because our pc was well designed with lots of conductive fingersto