Just a note on this one, While I agree with the bulk of Mr. Fry's statement, there is one part which I feel needs clarifying:
" the peripheral and cable maximization procedure for CISPR 22-1993." If you reveiw the FCC rules and regulations, you will find that the rules state that if you use the CISPR 22 limits, you must still test to the ANSI C63.4 test procedure. This procedure includes cable maximization which differs from the CISPR 22 procedure. I have conversed with two competent bodies on this issue, and have been told that when performing emissions testing to the CISPR standard for CE-Mark requirements, it is acceptible to use the ANSI C63.4 test procedure when configuring the equipment, as long as it is stated as such in the test report / test file. There is a possibility that if the EUT/Peripherals/Cables are not configured as described in ANSI C63.4, the FCC could declare the data unacceptible and request a retest if the report ever came under review. I would be interested to hear other comments on this point, as well. Regards, Randy Flinders EMC Test Engineer Emulex Network Systems Corporation Phone: (714) 513-8012 Fax: (714) 513-8265 E-Mail: [email protected] WebSite: www.emulex.com * opinions expressed herein are personal, and in no way reflect the position of Emulex Corporation. -----Original Message----- From: frydave [SMTP:[email protected]] Sent: Thursday, February 19, 1998 4:11 PM To: emc-pstc Subject: Canada CISPR 22 Conducted Emissions Answer ---------------------------------------------------- Subject: Canada CISPR 22 Conducted Emissions Answer Author: frydave at NOR2CCPO List-Post: [email protected] Date: 2/19/98 10:39 AM Thank you for all responses. Clarification for testing and report requirements. Based on the fact the European Union, FCC and Industry Canada have endorsed CISPR 22, a test report that covers Global requirements would be as follows. The following assumes the use of universal power supplies or supplies with 120-230 volt settings available. -Radiated emissions to CISPR 22-1993 using CISPR peripheral and cable maximization procedure. To satisfy the worst case requirements, investigative testing must be done at 120 VAC 60 Hz and 230 VAC 50 Hz. Perform final radiated emissions testing at the worst case operating voltage. Justify the operating voltage as the worst case configuration within the text of the report. -Conducted emissions is also done to CISPR 22 range of 150 kHz to 30 MHz and testing must be performed at both 120 VAC 60 Hz and 240 VAC 50 Hz. Again use the peripheral and cable maximization procedure for CISPR 22-1993. Report the conducted emissions for both voltage settings within the test report. Once the European Commission has adopted CISPR 22-1997, all testing will use the peripheral and cable maximization procedure outlined within the 1997 version, essentially the ANSI C63.4-1992 procedure. [hopefully Canada will also adopt the new CISPR 22-1997 requirements for maximization of cables and peripherals] Dave Fry, Sr. EMC Specialist Intermec Technologies Corporation Norand Mobile Systems Division EMC Test Laboratory Internet: [email protected]
