As a matter of fact the local SCV EMC society paper next week is about EM radiation >from fiber optics. No, not from the glass or plastic itself!, but from the metalized reflector coating and also from the proximity of the Tx diode next to the connector. Actually measurable radiation!
--- John Woodgate <[email protected]> wrote: > > I read in !emc-pstc that Tom Cokenias <[email protected]> wrote (in > <v04205511ba4377eaa41d@[10.10.10.79]>) about 'Fiber optic cable testing > per EN 55022:1998 ?' on Thu, 9 Jan 2003: > > >I'm wondering how to handle fiber optic cables under the new EN55022 > >going into effect August 2003. Measurements are supposed to be made > >on telecommunications cables, and fiber optic cables are being used > >for telecommunications. From my reading of the standard I don't see > >that they would be excluded, but neither do I see how they should be > >tested. > > Can you see any mechanism by which they would emit EM radiation below > 400 GHz, or conduct it, or lack immunity to it? > > You don't have to do tests that are clearly not sensible. > -- > Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk > Interested in professional sound reinforcement and distribution? Then go to > http://www.isce.org.uk > PLEASE do NOT copy news posts to me by E-MAIL! > > ------------------------------------------- > 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" ===== Best Regards Hans T. Mellberg, Consultant Regulatory, High Speed, EMC and Power Design Services By the Pacific Coast next to Silicon Valley, Santa Cruz, CA, USA office:831-454-9450, cell:408-507-9694, fax:831-454-0755 BSEE, NARTE Certified Engineer, IEEE, AIAA, dB 2004 IEEE EMC Symposium Program Chair, IEEE EMC SCV ADCOM __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com 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"
