This probably comes under the heading of "due diligence". Dave Cuthbert
Kris, In my reading of the standard, and the next modification will include that clearly, you need to test discharges to the shell of the USB connector, as there will not be a connector in there all the time. There is another strong argument: The user might plug a charged (e.g. hand-held) device into the USB port. Of course, the main criteria is survival, as you cannot test connectivity if there is no USB device. But if you have multiple USB connectors, another USB device might loose connection when discharging to a different USB connector. David Pommerenke 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"
