ADLINK CoreExpress-ECO2 - Manual (Page 11)

TME-CEM-ECO2-Rev0V4.doc Rev 0.4 Page 7
2.2 Carrier Board Considerations
The CoreExpress specification defines two types of connectors for the carrier board, one with a
height of 5 mm, the other with a height of 8 mm. See the specification for the connector definition
and recommended vendors.
LiPPERT recommends using the 8 mm type, since it gives more freedom for components on top of
the carrier board and allows for greater distance between the two PCB's, which is important for
applications requiring higher vibration tolerance. When using the 8 mm connectors, the maximum
component height on the carrier board (below the CoreExpress-ECO2) can be up to 4 mm. Figure1
shows the details.
Figure 1: Maximum component height with 8 mm connector type
Figure 2: Minimum component height with 5 mm connector type
Note Be carefull with the metal spacers when mounting the board. There is a
possible danger to create a short circuit with the components located
around the mounting holes. This can damage the board!