[PCB_FORUM] backplane

 I have a backplane with 20 slots. There are 2 fabric slots and 18 other
slots. We want a full mesh topology. Each slot has to have a connection
to every other slot. The connecter I'm using has 4 pairs in each row.
All 4 pairs of one row on a slot go to 4 pairs on another slot. I've
been asked to try and figure the least amount of layers this requires.
No matter what I try, the layer count is extremely high. Does anyone
know of anyplace on the web that might show some routing strategies for
this? Have any of you ever done anything like this? Any help would be
greatly appreciated. Thanks.

 

 

 

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