Ron, Thank you for your assistance in getting me closer to completing my task at hand !
I really like the different alternative solutions that you have provided for me. I also tend to agree with you, in terms of the speeds ( Category 3 aka ... Cat 3 for 10 Base T, Category 5 aka Cat 5 for 100Base T)I will be working with, does not lend itself well to traverse thru mixed connectors ( terminations , DB connectors, etc ). My understanding in the little education that I have gotten since I first started investigating these connectors,is that the degree in which the wires are twisted ( number of twist per xxx distance )will make all the difference in the world if the information (data) gets thru or not. Once again thanks a million. PS. I loved your comment about the flames... very appropriate ! LOL Reg -----Original Message----- From: Ron Pickard [mailto:rpick...@hypercom.com] Sent: Thursday, December 20, 2001 5:40 PM To: emc-p...@ieee.org Cc: rhe...@vicon-cctv.com Subject: RE: RJ45 filtered connector Hi Reg, Trying to find a bulkhead RJ45 (shielded & filtered) connector for an EMC chamber may prove to be an impossible task as, IMHO, this type of connector might be fairly fragile and hard to install for such use. To that end, I will offer some suggestions: 1. Talk to chamber manufacturers. I am quite sure that they would know about such a connector if one exists. 2. A bulkhead mounted DB25 connector might work. These can come filtered, however, the filtering involved should not impact the communication speeds you will be working with. To connect to standard ethernet cables, use 2x(DB25-RJ45) adapters (1 inside & 1 outside). The whole thing would be connected as "Outside Cable - Adapter - Bulkhead DB Connector - Adapter - Inside Cable". These adapters are quite common and shouldn't need to be filtered as the DB connectors would do that and if extra filtering is needed, a simple clip-on ferrite might be all that's needed (the ferrite might even be put inside the adapter backshell). And, the DB25 connector might be used for other interfaces during testing, as well. 3. You shouldn't need any connector if your EMC chamber has a ventilation opening. Just fit a cable thru the opening and put enough ferrite around the cable (inside and outside) to suppress any common mode interference. These suggestions are intended to get all those neurons firing to think of some connector alternatives to the one you're seeking. I hope this helps. Comments anyone? Bring on the flames. :-) Best regards, Ron Pickard rpick...@hypercom.com JK100005@exchange.SanDiego CA.NCR.com To: rhe...@vicon-cctv.com, emc-p...@majordomo.ieee.org Sent by: cc: owner-emc-pstc@majordomo.i Subject: RE: RJ45 filtered connector eee.org 12/20/01 12:34 PM Please respond to JK100005 Reg, Look at Regal Electronics at http://www.regalusa.com. They have board mounted RJ-45 that have gasketing appropriate for a panel. Jim Jim Knighten, Ph.D. Teradata, a Division of NCR http://www.ncr.com 17095 Via Del Campo San Diego, CA 92127 USA Tel: 858-485-2537 Fax: 858-485-3788 jim.knigh...@ncr.com -----Original Message----- From: Reginald Henry [mailto:rhe...@vicon-cctv.com] Sent: Thursday, December 20, 2001 10:51 AM To: emc-p...@majordomo.ieee.org Subject: RE:RJ45 filtered connector To All, Can anyone out there tell me where I would be able to purchase a fully shielded and filter RJ45 connector that is Bulkhead mountable. The RJ45 must be able to handle data rates from 10Base T to 100Base T I will be performing CE testing in the chamber so it must be bulkhead mountable ! Thanks and Happy Holidays to YOU ALL ! Reg ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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