Unless of course it self limits the current etc when max power is measured, or not provided. Gary
From: david_ster...@ademco.com [mailto:david_ster...@ademco.com] Sent: Thursday, February 06, 2003 5:43 AM To: alex.mcn...@ingenicofortronic.com; emc-p...@majordomo.ieee.org Subject: RE: Ethernet Creepage and Clearance The only safty reg I know of pertains to the 15-pin DB-mini connector for the 'AUI' interface: Safety agencies require a fuse (or current-limiting) on AUI Pin 13 which sources 12 volts. Otherwise they consider the AUI 'hazardous', requiring all sorts of stickers and warnings. ANSI/IEEE 802.3 specifies 300mA source capability for the AUI but not all AUI interfaces are 802.3 compliant; they may source less than 300mA. Review all power supply outputs (PC card, custom adapters) to verify they are limited-current per EN 60950. David From: Alex McNeil [mailto:alex.mcn...@ingenicofortronic.com] Sent: Thursday, February 06, 2003 2:56 AM To: emc-p...@majordomo.ieee.org Subject: Ethernet Creepage and Clearance Hi Forum, Are there any ethernet and PCB safety requirements, ie are there rules like those for the modem side of things (isolation in particular) or is the transformer sufficient? Kind Regards Alex McNeil Principal Engineer Tel: +44 (0)131 479 8375 Fax:+44 (0)131 479 8321 email: alex.mcn...@ingenicofortronic.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc