Hello, I'm with a company that produces industrial plug-connectors, especially fieldbus coonnectors to transfer information between field devices and control cabinets, so for Profibus, Interbus, CANopen and so on. In earlier times high data rates haven't been important for industrial purposes, but a few years ago when transfer rates of data transmission rised, we began to optimize our connectors with the objective of being able to transfer these high data rates (until 100 MBit/s). Now some guy had the idea to continue concentrating on data connectors, especially the so called micro-connectors. An example for such a micro-connector would be: http://www.matsushita.de/home/www/catalogues/connector/download/en_ds_6520 3_0000.pdf http://www.matsushita.de/ac/news.html?/home/www/catalogues/connector/de/co nnector.php I am not familiar with this kind of connectors, wherefore I've got some questions: 1) What kind of standards / norms exist, which we have to meet and which characteristics are the most important ? For example our M12-round connector (as well as the typical RJ45-connector)has got to comply with TIA 568B resp. ISO 11801 and the two main characteristics are Return Loss and Near End Cross Talk (NEXT). 2) What kind of measurement devices do we need to verify the properties of such a connector ? I know that these questions are global verbalized, but I have to start from one point, so I would be glad to obtain some answers. Best regards, Stephan Giesinger -- Sparen beginnt mit GMX DSL: http://www.gmx.net/de/go/dsl ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu