Most of the CENELEC immunity standards specify performance criteria A as follows:
"The equipment shall continue to operate as intended without operator intervention. No degradation of performance or loss of function is allowed below a performance level specified by the manufacturer when the equipment is used as intended. The performance level may be replaced by a permissible loss of performance. If the minimum performance level or the permissible performance loss is not specified by the manufacturer, then either of these may be derived from the product description and documents, and by what the user may reasonably expect from the equipment if used as intended." However, ETS 300 683 and ETSI EN 301489-1 and -3 (and I presume the other parts) read less clearly as "Operate as intended" and "No loss of function". Can one presume that CENELEC's more well defined wording of Criteria A can be applied to the ETSI standards? Specifically, can the manufacturer specify a degradation of performance or loss of function as long as the degraded performance is not less than what the user may reasonably expect from the equipment if used as intended. Richard Woods Sensormatic Electronics Tyco International ------------------------------------------- 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"
