[SI-LIST] Trace length problem

I have a question about trace length problem. In 4G Midplane Layout 
Guide Line

They say:

Do not allow the nets to have the following length.

0.685=A1=B1 to 0.785=A1=B1 and 1.37=A1=B1 to 1.57=A1=B1 and 2.74=A1=B1 to 3=
.14=A1=B1

 

I don=A1=AFt know why. Would you please help me to answer it?




------------------------------------------------------------------
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:
http://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:     
                http://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
  

Other related posts: