Barbara, My EMC days ended about seven years ago, but I may be able to help. All EUTs being evaluated for EMC compliance must usually be tested as part of the system in which they will be used. Examples:
- PCs must be tested with kybds, mice, monitor, printer, ..... - printers must be tested with PC, monitor, ...... Therefore, an option intended to operate from host power must be tested as a complete system. Therefore, the answer to your question is 'yes'. George Alspaugh bbrooks%[email protected] on 08/02/2000 07:55:29 AM Please respond to bbrooks%[email protected] To: emc-pstc%[email protected] cc: (bcc: George Alspaugh/Lex/Lexmark) Subject: EN 55022 Conducted Emissions I have had an inquiry that I am not sure of the answer and I was hoping that someone could provide me with an answer. If an EUT is DC powered device (i.e., a video card, internal modem, etc.), deriving its power from a host's power supply (i.e., a video card, internal modem, etc.) would the conducted emission specified in EN 55022 be performed on the power leads for the host as part of the test program for the EUT. Thank you for your assistance. Barbara Brooks Wyle Laboratories 7800 Highway 20 West Huntsville, AL 35807-7777 (256) 837-4411 ext 595 (253) 721-0144 Fax [email protected] ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected] ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
