CompactPCI form factor
27
Model 6276 User Guide
3 • System architecture
Board front panels
CompactPCI boards provide a front panel interface that is consistent with Eurocard packaging and compliant
with IEEE 1101.10 (EMC panels). Ejector/injector handles are used on the boards
(see
figure 9
). Filler panels
do not require handles.
Figure 9. Front panel—6U front-entry card
Transition boards
There are two types of boards:
•
Front-entry boards (described in section
“Board front panels”
on page 27)
•
Rear-entry boards for rear-panel I/O
The front-entry boards may route I/O through the backplane. Backplanes that enable rear I/O are called often
midplanes because the legs of the backplane connector’s pins stick through the board to become pins for rear-
