Hi All, Can someone provide me with the information about how to use the Protel Signal Integrity Tool. I want to apply some design rules of Impedance Constraint and Overshoot/Under shoot on a particular net class along with the crosstalk analysis. Do I need to have IBIS models of the chips under scrutiny to test for these rules or the Protel itself calculates the Transmission Line Parameters and other stuff ?. Regards, ADEEL MALIK , SDE, Avaz Networks ------------------------------------------------------------------ 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 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