Hi all, I am new to this forum and this signal integrity area also. I am into designing one adaptor board which connects between 2 SAMTEC connectors. samtec connector 1 <-----------> new adaptor board <---------> samtec connector 2 both connectors are high speed connectors and since i am designing board with mentor graphics PADS, how can i ensure that adaptor board is SI-issue free (using IBIS models, i can simulate and ensure that..but my question is mentor graphics PADS enoff to do SI analysis). somewhere i have read that signal integrity affects for signals > 40MHz only. adaptor board signals operates at around 14 MHz to 20MHz. Will SI issue come into picture in this case. can anyone please clarify regarding this. thanks reddy ------------------------------------------------------------------ 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 technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu