Dear fellows:

We are designing a backplane for a high-speed transmission telecom
equipment.  The highest speed running on this backplane is 155Mbits/sec.
My colleague who has a little experience of designing a previous
backplane used in a lower speed one suggests me that, a pre-layout by
manual (paper and pencil) absolutely necessary for having a trace check
before being submitted into real layout.  Anyway, I don't think it is a
good idea because it takes too much efforts, unfortunately, I am agree
with that a pre-check is needed but I don't know is there any better
way?

Anyway comments from you?

C.-F. Huang

################################################################
DesignerCouncil E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE DesignerCouncil <your full name>
To unsubscribe:   SIGNOFF DesignerCouncil
################################################################
Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
################################################################