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32 Appendix A Bus Hierarchy

Appendix A Bus Hierarchy

Bus Hierarchy

The following figure is representative of the PCI Bus hierarchies for the

7 Slot PCI Expansion System. This figure pictorially conveys the overall

PCI bus topology of the system.

7 Slot Topology

In general, we do not know what the actual Bus numbers are. We only

know how they increment starting from the host card.

The key point in the figure of the 7 Slot topology is that the connecting

cable between the host card and the 7 Slot backplane is actually a PCI

bus itself. This is represented in the Windows Device Manager as

shown below:

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 51 52

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