On Wed, Jul 11, 2012 at 07:55:45AM +0200, Mathias K. wrote:
- board-edge connector for plugging many boards into one backplane
I would suggest the ERNI SMC. There are also a cable assembly available.
http://www.erni.com/fileadmin/medien/downloadcenter/smc/ERNI-SMC-e.pdf
My first thought for such kind of project was Compact PCI, but that maybe that blows the planned costs.