Could we change the name of this thread please? I'm not sure I'm done getting responses on my EN61000-3-3 question and suddenly it's turned into a thread on NEBS stuff!
Thanks, Jim Eichner, P.Eng. Manager, Engineering Services Xantrex Technology Inc. phone: (604) 422-2546 fax: (604) 420-1591 e-mail: jim.eich...@xantrex.com web: www.xantrex.com Confidentiality Notice: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. -----Original Message----- From: Gary McInturff [mailto:gary.mcintu...@worldwidepackets.com] Sent: Tuesday, September 10, 2002 11:22 AM To: Joe Finlayson; John Juhasz; Dorin Cc: EMC-PSTC - forum Subject: RE: Inrush and EN61000-3-3 Check out section 9.10 "Compatibility with former IBN Equipment with CBN Currents". I think this more directly relates to the signal connections, whether or not, they have to be isolated from the equipment chassis until grounded at the Isolated bonding point. I don't think(?) isolated bonding is much used these days. I know we used to make equipment that keep signals from chassis (grounding the chassis to the rack) but most of the RBOC's also wanted the ability to make a signal to chassis ground, and most seemed to be using that connection. This is one of the more confusing issues, at least to me on the NEBS specifications. Still not sure I know what it says. Gary -----Original Message----- From: Joe Finlayson [mailto:jfinlay...@telica.com] Sent: Tuesday, September 10, 2002 9:03 AM To: 'John Juhasz'; 'Dorin' Cc: 'EMC-PSTC - forum' Subject: RE: Inrush and EN61000-3-3 John & Dorin, Please clarify as I am not aware of a requirement to isolate Signal Ground from Frame Ground. Please reference GR-1089-CORE, Section 9.6.2 as well. Thx, Joe -----Original Message----- From: John Juhasz [mailto:john.juh...@ge-interlogix.com] Sent: Tuesday, September 10, 2002 11:12 AM To: 'Dorin' Cc: 'EMC-PSTC - forum' Subject: RE: Inrush and EN61000-3-3 Be careful Dorin. For Central Offices, they need to be isolated. John A. Juhasz GE Interlogix Fiber Options Div. Bohemia, NY -----Original Message----- From: Dorin [mailto:dorin.op...@alcatel.com] Sent: Tuesday, September 10, 2002 9:12 AM Cc: 'EMC-PSTC - forum' Subject: Re: Inrush and EN61000-3-3 Hi, I am looking for a comparison, pros and cons, on the signal ground connected versus not connected to the chassis in a telecom system. Any help is appreciated. Thanks, Dorin ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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