| 摘要 |
<p>A dual bridge carrier card (40) includes a first bridge circuit (47) mounted on the carrier card and connected to bridge a first bus in a first portion of a passive backplane (60) to a first extension bus in a second portion of the backplane (60). A second bridge circuit is mounted on the carrier card and connected to bridge a second bus in the first portion of the backplane (60) to a second extension bus in the carrier card. A plurality of PMC mounting positions are defined on the carrier card and connect the plurality of mounting positions to the second extension bus. The carrier card extends the backplane beyond the normal four slots (for PCI systems) and eight slots (for cPCI systems) and allows the mounting of PMCs on the same card.</p> |
