Thanks.
I am actually trying to find components I can use to design-in on the PCB of the DUT, i.e. not self-contained external boxes. I would like to have a standard interface on the boards that we design which would ease the DUT monitoring. I have a microcontroller that can output the DUT status, I "just" need to transmit it over a fiber link to the outside of the chamber. Since I sent the original ping to this email reflector, I found Agilent HFBR optical devices: http://www-zeuthen.desy.de/~tonisch/Files/LWL-Clock-Repeater/Datenblaetter/HFBR-2416.pdf I think they may be quite useful. Interestingly, I can't find the same data sheet directly on the Agilent web page, which makes me worry whether it is actually available. Please let me know if anyone has any other solution and is willing to share. Best regards, Neven From: "Gary McInturff" <[email protected]> To: [email protected], [email protected] Sent: Thursday, August 26, 2010 8:00:59 AM Subject: RE: [PSES] fiber-optic converter for DUT monitoring - any suggsetions? Neven I suspect that you have already thought of building your own device so you’re looking for something commercial. I’ve used a couple of converters. Serial to light, Can bus to light etc, and the work nicely except they have their own EMC signature that you have to worry about. They are at least stable and can be identified. I usually put a caveat on the purchase however, If I put them in the chamber and they make more noise that I want they go back. Most of the manufactures don’t quite understand what the heck we are trying to do. They will tell you it is compliant with some limit or other but don’t understand the use as a lab device in order to measure the thing of interest. There are lots out there and I’ll just give you the link of the one I happen to have in this lab www.eks-eng-engle.de <http://www.eks-eng-engle.de/> . Not sure how adaptive this would be if you’re trying to just convert the single signal but it might lead to something you can use more readily Gary ________________________________ From: Neven Pischl [mailto:[email protected]] Sent: Wednesday, August 25, 2010 5:20 PM To: [email protected] Subject: [PSES] fiber-optic converter for DUT monitoring - any suggsetions? Hello all, I have a DUT that can output a 3.3V digital signal indicating its status during the radiated and conducted immunity tests. The signal frequency can vary from DC to a couple of MHz, depending on the DUT status and number of errors. Steady 0V means everything is fine, steady 3.3V means it stopped working (data link is down), each error sends one pulse (till there are too many errors so it does not work any more). I would like to convert it to optical signal, then on the other end of the fiber link I'd like to convert it back to electrical signal for DUT-monitoring purposes. Does anyone have a recommendation what components to use? Or manufacturer, part numbers, App Notes, ready schematics and list of materials, anything of that sort to point me in the right direction. Thanks, Neven - 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
