IEEE EMC-PSTC Forum Houskeeping Clarification

To All Members, I guess I created a minor fire storm so let me try to clarify the issue. You are receiving this email from the EMC-PSTC Email List server (hereafter called List). This email list is separate and stand-alone. While it is hosted by the IEEE servers, it is not the same thing as the

RE: [EMC-PSTC] red LED restrictions for China?

Thank you for the responses. I'll make sure the design team concerned with this topic clearly states the intent of any red LEDs they plan on using. Just to be certain, I'll ask my Chinese regulatory contact. Just an observation, isn't it amazing how prevalent LEDs are today? Ultrabright, r

Re: red LED restrictions for China?

Hi All, I am surprised that no one has made mention of the suit that was filed in order to have the red LED displayed on their disc drives. I believe the co lost on this matter. It was determined - at that time - that a red color was to be only used as a warning of impending disaster. It was s

Re: red LED restrictions for China?

Folks, As I recall it, the text in IEC 60950-1 was added many, many years ago to make it clear to all (but particularly Germany) that just because a red LED was illuminated on your keyboard didn't mean that it - or the attached terminal (computers were big in those days!) - were not about to self

RE: LVDS

In the cases where clock harmonics are an issue running a sinewave clock can fix things. In your case (the 3 rd harmonic) any effective filtering will turn the clock waveform essentially into a sinewave. Troubleshooting which IC (if it is IC-to-whatever E-field coupling) can be performed by di

Re: red LED restrictions for China?

Havn't heard this in quite a few years. I think it was the late 80's and a Ergonomics specification from Germany IIRC. I don't recall if it went away because of European harmonization or just went away. Supposedly having Red LED's in the operator area could cause Eye Strain, IIRC.

Re: Packaging requirements for China RoHS

Hi Kevin, Your question has been answered by the MII since December 1, 2006. It has been posted at http://www.mii.gov.cn/art/2006/12/01/art_1221_27260.html since then. After you open the page, your question is Question #30. If you can

RE: red LED restrictions for China?

Consider this extract from IEC 60950-1: 1.7.8.2 Colours Where safety is involved, colours of controls and indicators shall comply with IEC 60073. Where colours are used for functional controls or indicators, any colour, including red, is permitted provided that it is clear that safety is not i

RE: red LED restrictions for China?

We use hundreds of red LEDs on our mixing consoles - usually to indicate signal peaking, mutes and microphone phantom power - and we've never had a problem with products exported to China. Not a definitive answer I know, but an insight Chris _ C

IEEE EMC-PSTC Forum web site Housekeeping

To All Members, This is a copy of a message broadcast earlier tonight to the members of the EMC-PSTC Forum web site. I have volunteered to do a bit of housekeeping on the EMC-PSTC Forum web site. This forum is one of the IEEE On-line Communities and is here for your benefit and use. Please und