Hectronic H6052 Hardware Reference Manual page 27

5. The photo below shows the component side of the board with the bolts already fixed
in place.
6. Grasping H6052 by its edges, position it on top of the carrier board with its mounting
holes aligned with the bolts on the carrier board. This will also align the COM Express
connectors of the two boards to each other.
H6052 Hardware Reference Guide
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