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 conducted emissions >from fiber optic cables.
My email was based that your assumption was already true; I was then trying to get deeper into the subject to get back to the basic physics that would tell you why a fiber optic cable doesn't emit or react to EMI. Chris > -----Original Message----- > From: Juhasz, John (IndSys, GE Interlogix) [SMTP:[email protected]] > Sent: Friday, January 10, 2003 2:07 PM > To: drcuthbert; Chris Maxwell; [email protected] > Subject: RE: Fiber optic cable testing per EN 55022:1998 ? > > > 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 wire-line telecom not fiber. > > Of course one should take into consideration, as astutley noted in > Dave Cuthbert's message, whether or not the use of fiber with a metal > sheath is typically used in the product's installation. In that case there > could indeed be measurable emissions. > > Is there anyone subscribed to this forum who is on > the EN 55022 committee who could possibly shed light on this? > > John A. Juhasz > > GE Interlogix > Fiber Options Div. > Bohemia, NY > > > > 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
