Derek N. Walton wrote:
>> Two big problems with ALL MB's. Plug in a PS/2 mouse, and the emissions dramatically increase. Also, this happens with the KB too. It would seem that the designers of the boards put a switched mode power supply right next to the connectors: not a smart move in my opinion. << Without addressing your HIPOT question, I'll note that when I worked at computer companies, we often had to add contacts between keyboard/mouse connector shells and the chassis. This usually meant a gasket or spring fingers. I can't claim to have invented (maybe I did or GMTA) the stainless steel sub-panels many computers now use for that, but I do know that this was in the end considered a cost-effective way of resolving keyboard/mouse cable emissions from OEM mother boards. Cortland 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] 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
