Board front panels
27
Model 6476 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”)
•
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-
panel interconnections. An illustration of the front-entry board and rear-panel I/O board interface with the
backplane/midplane is shown in
figure 10
.
Injector/ejector
handles
