Printed circuit board arrangement for upgrading peripheral component interconnect express bus system of embedded personal computer, has bus coupler for coupling secondary-bus system with primary bus system in computer system

摘要

The printed circuit board arrangement has two printed circuit boards e.g. extension boards (26, 28) including a peripheral component interconnect (PCI)-socket (36) and a PCI- plug (42) and plug-in connectors (38, 40). The plug-in connectors electro conductively contact with each other while stacking the printed circuit boards. A bus coupler is arranged on the printed circuit boards. The coupler places a secondary PCI-bus system and couples the secondary PCI-bus system with a primary PCI-bus system in a computer system (10).