unsubscribe

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, s

Re: CDMA Product Approvals

So now I'm curious, which came first Ethernet or cell phone. CDMA is also used on Ethernet. At least the original simplex versions - triple shielded coax, then cheaper net - essentially phone cables. It wasn't needed with full duplex PTP transmission, which some might argue isn't true Ethern

Re: Temperature effects on conducted emissions?

As the componets warm from room to operating temp you may see a small change, but I've never seen anything that big - except when I had a metallic grouding clamp that expanded and quit making contact. But as components come up to temp some of them do change value so you may want to look at those c

Re: Clayton Pauls - Thanks all, obviously I messed up and Paul was correct

Well, I knew I could expose my inadequacies in public. I hear this loud - WHAT AGAIN! coming through the Ether at me from the group :)This was obviously as good a way as any. I'm going to blame my calculator as a face saving effort. Ron after I got your note (and some others thanks) I

Clayton Pauls - Intro to EMC - an error or two? for those that have the text

My anal-retentive self is having some trouble with an occasional example in the text and I need either a confirmation or a slap in the forehead. I was just fiddling around with the text and reviewing some of the examples and in section 6.4 he presents a table of skin depth for copper,

Re: Number of Terminations on a Ground Stud?

John, I'm certainly not as familiar with as many standards as you are, but isn't the requirement, not so much that the PEC, must be on its own stud, but rather than this connection must be the first, and then a double locking nut to secure it? If there is remaining post length "ground

Re: Boston Symposium

Unfortunately I can't be there, but if on the way to get a brew you stop by a post office or other federal building you may be able to see my picture hanging up - but I didn't do all of the things they say, and even some of those that I did do were more of a misunderstanding kind of thing. :)

Re: MRI-safe test lab

Certainly a reasonable and timely request. Not sure the location other than here in the US, but recently a death resulted from a patient being hit in the head during an MRI buy something metallic that was inadvertently brought into the imaging room. Believe that it was something on the order of a f

Re: Need cheap hotel close to EMC show

The last time I went to one of these and was found in a cheap motel it cost me my house and half of everything I owned :) So I'm betting you'll want to get someone else to give you a recommendation. Gary

Re: ESD - not applicable ?

Agree with Don. May not be necessary but maintenance type ESD testing is a very good idea. In fact part of the NEBS (Telecommunications test suite) has circuit card ESD tests specifically for maintenance and production handling. They do have a product ESD test but they are in different documents.

Re: (mis)spelling humor

Once let spell check do its thing while having my brain on empty and not paying to much attention to what it was suggesting. So I sent a company wide memo that changed a name from Hugh Hagel to Huge Bagel. Gary

Re: PCB marked for UL 94V-0

First of all I would update the note to say the board manufacturer must be a recognized printed wiring manufacturer, and then call out the flame rating you need on the board. You'll need the manufactures name or trademark, board model (single or multilayer), and the flame ratings stamped on

Re: Bellcore SR-3580: Update to reflect the new GR-63 Issue 2 and GR- 1089 Is...

Each of the RBOC's has its own requirements for NEBS levels - Verizon -naturally being the most different. You may want to go out to the WEB sites for each and pull down their documentation to calculate your strategy on this. Unfortunately, I'm not where I can access my web links and

Re: FDA registration of laser

Nope, you are absolutely correct on the GBIC's or the new smaller pluggable LC connector optics. You are just a distributor of those under the laser guidelines. Again, its a fully contained module that you make no changes to, and they have no controls or failure modes that you could induce to chan

Re: FDA registration of laser

I think I agree with the laser 42 reference, but I would be a little careful. The notice applies to units that are not only complete in their construction and as such their output cannot be affected by the circuits into which they are being installed. E. g. If the drive voltage increases to

Re: FCC and Hi Temp operation

The first thing to do is to check the component temperature ratings to see if you will even meet the parts manufacturers operating limits. Many commercial components are rated at 70C, meaning that the parts vendors only guarantee the operation up to that point, after that you are on you own.

Re: EMC Friendly PC Platforms.

I don't know if they sell them commercially or just onsey-twosey. But Itronix, here in Spokane Wa sells a line of ruggedized laptops that are exceptionally quiet. Gary McInturff

Re: Bad Fuse vs. Good Fuse

(from Cambridge Advanced Learner's Dictionary ) bad (LOW QUALITY) adjective worse, worst low quality; not acceptable:

Re: Safety testing after equipment repair

I agree with Alice on the arrangement of Hi-Pot for new products, but I think the question was returned products for repair, correct. I read John W's note with interest, but I also remember a note from Rich Nute about a test he ran that pretty much pointed out that a simple continuity test

Sorry - Need Doug Smith's contact info - Doug could you e-mail me

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,