The only company I know selling these special CDN is Rodhe&Schwarz http://www.rsd.de <http://www.rsd.de> Best Regards
Lothar Schmidt Technical Manager EMC/Bluetooth, BQB, Competent Body Cetecom Inc. 411 Dixon Landing Road Milpitas, CA 95035 Phone: +1 (408) 586 6214 Fax: +1 (408) 586 6299 -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Friday, January 19, 2001 7:02 AM To: [email protected]; [email protected] Subject: Need a CDN-T2 for 61000-4-6 conducted immunity test Dear Listmembers: I would like to purchase a CDN (coupling-decoupling network) for performing the conducted RF immunity test called out in EN 55024. The specific CDN that I am interested in is the "CDN-T2" for 2-wire unshielded twisted pair, as shown in Figure D.4 of 61000-4-6. Can any of you recommend some suppliers who sell this device? So far I have identified only one small company in California. When I called to get more information I had a most unpleasant experience, so I would prefer to spend my money elsewhere if possible. I also have a couple of questions that I'm hoping you can help me with: 1) What specific performance parameters should I should be looking for in this CDN? 2) I note that the ISN (impedance stabilization network) in Figure D.1 of EN 55022 has a similar schematic to the CDN-T2. Is it possible to use the CDN-T2 for the EN 55022 conducted emissions test as well? My primary interest is in being able to perform the conducted immunity test per EN 55024, but it might be nice to be able to perform the conducted emissions test per EN 55022 as well. Any suggestions for recommended vendors would be welcome. Joe Randolph Telecom Design Consultant Randolph Telecom, Inc. 781-721-2848 http://www.randolph-telecom.com
