Possible - sure. You can get a air powered actuator to touch it, but depending on whether its resistive or capacitive. If capacitive you will likely have to build up a little human model pcb for the probe and get it to ground. The air actuator can be driven outside the chamber, if your air reservoir is sufficient. The electronics for the actuator can be located outside of the chamber itself so won't add noise to the measurement. The drawback is that the actuator itself will provide a little metal cylindrical surface right next to the CRT. You might be able to get low pressure ones that are plastic, but the one's I work with are metal. The one time a tried something similar I was just driving a contact point across a keyboard touchpad primarily for immunity testing, but left it going during the emissions testing and I didn't see any problems associated with having the metal actuator inside the chamber.
You could actually put more than one cylinder so that you were touching different areas of the screen if you want. Should you do it, I don't know. Gary From: Rick Linford [mailto:rlinf...@sonicwall.com] Sent: Wednesday, April 04, 2012 10:11 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Test Setup for a Display Powered by a PoE Injector Hi Grace, 1. Both the display (POE Powered Device (PD)) and POE injector (POE source) should have separate reports. Recommend testing them separately because the general idea of POE source is to provide power to a device at some distance from AC mains source. But they could be tested at the same time. 2 and 3. Yes plug into LAN and yes it must be exercised. Ping may be acceptable for some or most test but Telecom conducted requires a percentage of the rated speed. Immunity requires monitoring performance. Investigate worse case modes of Ethernet speed, 10/100/1000 megabits per second. If POE source is also being evaluated consider worse case loads, may require other POE PDs to get different loads. Looking forward to discussion on Dieter Paasche's added question; Should the touch panel be touched during the test (maybe with some moving fixture)? Is it even possible? Good luck, Rick From: Grace Lin [mailto:graceli...@gmail.com] Sent: Wednesday, April 04, 2012 5:51 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Test Setup for a Display Powered by a PoE Injector Dear Members, Could you please give your comments on the test setup for a display (touchpanel) powered by a PoE (power over Ethernet) injector? More specifically: 1. Does the PoE injector need to be part of the EUT (equipment under test) and placed on the turntable next to the EUT? Or, can the PoE injector be placed remotely (under the ground plane or outside of the chamber)? The PoE injector is marketed/packaged separately from the EUT. Both the EUT and PoE injector are marketed by the same manufacturer. 2. There are two ports, in addition to the power port, from the PoE injector: "PoE LAN" and "LAN". "PoE LAN" port connects to the EUT. Need the "LAN" port of PoE injector be connected to LAN? 3. Need the "LAN" port of PoE injector be exercised? If yes, is Ping command good enough? Thank you very much for your time and look forward to hearing from you. Best regards, Grace Lin - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net<mailto:emcp...@radiusnorth.net>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net<mailto:emcp...@radiusnorth.net>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
