RE: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Gary McInturff
I too was surprised to hear about crosstalk on fiber, but according to at least one vendor it was photon crossover that is then converted to electrons after the photon to electron interface (the optics module receiver). Still not sure how that happens but that is my very minimal understan

Re: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Ken Javor
I had forgotten the terminology, and what Mr. Tarver related about the classes is true, but it is not true that electric or magnetic fields should theoretically be able to interact with a stream of photons. >From: "Peter L. Tarver" >To: "PSTC" >Subject: RE: Fiber optic cable testing per EN 5

RE: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Chris Maxwell
John, I don't think that your assumption is dangerous at all. I believe that the argument regarding whether the standards require any measurements specific to fiber optic cables has already been answered.The answer is no. There are no tests in EN 55022:1998 designed to measure signal line c

Switzerland PS

2003-01-10 Thread Ted Rook
that was supposed to read mountain paradise. And, have you ever wondered why so many 'international' organizations have headquarters in GENEVA Switzerland. Quality of life that's why, damn the expense, someone else is paying ie you and I the taxpayers. Geneva is at the western end of Lake.

RE: European 3 Phase

2003-01-10 Thread ggars...@us.tuv.com
> The only thing it lacks (which is almost inevitable, and is virtually > impossible to keep up to date) is a town-by-town (etc.) listing like you > used to find in the US Department of Commerce "Electricity Supplies Abroad" > booklet. This booklet had a red cover (if I remember correctly)and was

Re: Switzerland Compliance & Homologation Requirements

2003-01-10 Thread Ted Rook
If you were an island paradise at the top of Europe with hydroelectric power up the wazoo, control of the road and rail passes from N to S Europe, had a gazillion in foreign currency cash stored in your banks, were a republic of six million people divided into twelve self governing cantons in an a

RE: Switzerland Compliance & Homologation Requirements

2003-01-10 Thread Evangeline Cometa
On why Switzerland is not a member of the EU: They have always maintained the concept of a neutral and independent country. One of the purposes of the formation of the EU (which is to prevent another war by integrating their economies) does not apply to them. Preservation of sovereignty is another

RE: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Peter L. Tarver
You're partially correct, Ken. However, the photon (in quantum mechanics) is the particle that mediates the electromagnetic force; photon also the name given to the particle that is a quantum of electromagnetic energy. Thus, photons are involved as the particle analog to an electromagnetic wave.

Re: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Dorin
This is a multi-part message in MIME format. I enjoy it so please go ahead ... How can be physically explained the cross talk between the fibers (photon vs. electronic)? Thanks, Dorin don_borow...@selinc.com wrote: > -- Forwarded by Don Borowski/SEL on 01/10/2003 10:37 AM >

RE: European 3 Phase

2003-01-10 Thread amichael
Hello John, Peter, et al, BSI's "World Electricity Supplies, An International Survey", also available from (and in stock at) Int'l Product Safety Bookshop; Updated & Revised May 2001, Copyright 2001 See Regards, Art Michael Int'l Product Safe

RE: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Juhasz, John (IndSys, GE Interlogix)
While there are VERY good points here, I believe the original issue was the use of the terminology 'telecommunications' port/cable. Although a fiber optic port/cable can be used for telecommunications, I am going to go out on a limb here and assume ( a dangerous word, indeed) that intent was for

Re: Switzerland Compliance & Homologation Requirements

2003-01-10 Thread j...@aol.com
In a message dated 1/10/2003, Jeffrey Collins writes: Does anyone have any current information on telecom requirements in Switzerland? Hi Jeffrey: Last time I looked into this (about a year ago), Switzerland had incorporated the provisions of the RTTE directive into their national law. As

RE: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread don_borow...@selinc.com
-- Forwarded by Don Borowski/SEL on 01/10/2003 10:37 AM Don Borowski 01/10/2003 10:35 AM To:"Chris Maxwell" cc: Subject:RE: Fiber optic cable testing per EN 55022:1998 ? (Document link: Database 'Don Borowski', View '($Sent)') OK, some comments. The radi

Switzerland Compliance & Homologation Requirements

2003-01-10 Thread Collins, Jeffrey
Hi Group, Does anyone have any current information on telecom requirements in Switzerland? Mine is a little out dated. Specifically I'm looking into: * CO gear requirements * Network Access permits or licenses * Networking gear requirements with residential line access On a side note: Does an

Re: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Ken Javor
The answer is independent of frequency, it is the nature of the particle (electron vs. photon) that is key. I have forgotten the terminology, but one type of particle is called a boson, and per my (quite possibly faulty) recollection, bosons do not interact with electromagnetic fields. For exa

For Auction: Slaughter Hi-Pot tester model 106-2.5BUW

2003-01-10 Thread Kurt M. Marden
No reserve auction. Appears to work fine. See auction listing for details. Please contact me with any questions offline at kurt...@netscape.net Thanks, Kurt http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=25423&item=3106687535 -- Kurt M. Marden Environmental Simulation Manager Curtis-S

RE: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread drcuthbert
Chris, some excellent points! My take on this is that a fiber optical cable has a cutoff frequency that is way above the "RF" frequencies we are concerned with. It just won't act as a waveguide for what we consider RF wavelengths. However, I think the optical cable certainly does leak a bit at lig

EMC-PSTC Admin seeks employment EMC/Product Safety/Environmental/Reliability/Signal Integrity

2003-01-10 Thread Dave Heald
Greetings all, Due to a recent restructuring (a 41% layoff), I am for the moment unemployed. Naturally I'd like to remedy the situation, so here is a brief overview of my qualifications: I am an EMC, Product Safety, and Environmental compliance engineer who has for the last few years been a

IEC vs. EN

2003-01-10 Thread Sam Wismer
When IEC standards are called for in Generic or Product specific EU standards, is it inappropriate to use EN standards? If so, does the transition period for a superseded EN standard apply to the IEC standard or is the IEC presumed to be effective immediately if the IEC standard does not publish a

RE: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread Chris Maxwell
OK, Enough of this regulatory blah, blah, blah...(although that's what we get paid for). How about a hypothetical question... Typical radiated emissions measure a time varying electric field produced by the acceleration of electrons. When electrons accelerate back and forth at a given frequenc

CCC Certification

2003-01-10 Thread Evangeline Cometa
This is in response to a recent posting by Christian Marti on certification for China: "We are a US company manufacturer of TVSS:Transient Voltage Surge Suppressors (SPDs: Surge Protection Devices). We are selling these products in China, and if I am not wrong the deadline to get the CCC certifi

RE: 60950-1 DoP

2003-01-10 Thread Gregg Kervill
Does anyone know how much it costs? Beat regards Gregg From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Richard Meyette Sent: Thursday, January 09, 2003 1:28 PM To: emc-p...@majordomo.ieee.org Subject: RE: 60950-1 DoP Brian, There is a CB scheme

RE: Testing Sun beds in the UK.

2003-01-10 Thread David Sproul
Dear Mr Woodgate, you would be surprised where people chose to use sun beds these days. Just kidding. you're right, I should have typed 55015 instead of 50015. Best regards, David Sproul From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of John Wood

Re: Fiber optic cable testing per EN 55022:1998 ?

2003-01-10 Thread John Woodgate
I read in !emc-pstc that Hans Mellberg wrote (in <20030110005915.73808.qm...@web40903.mail.yahoo.com>) about 'Fiber optic cable testing per EN 55022:1998 ?' on Thu, 9 Jan 2003: >As a matter of fact the local SCV EMC society paper next week is about EM >radiation >from fiber optics. No, not from

Re: Testing Sun beds in the UK. (Humor)

2003-01-10 Thread John Woodgate
I read in !emc-pstc that Chris Maxwell wrote (in <83d652574e7af740873674f9fc12dbaaf7e...@utexh1w2.gnnettest.com>) about 'Testing Sun beds in the UK. (Humor)' on Thu, 9 Jan 2003: >It gets pretty dark and cold here in central NY about this time of year. I'll >test that sun bed for you. Make sure