![background image](http://html1.mh-extra.com/html/xilinx/kria-k26-som/kria-k26-som_design-manual_3372861044.webp)
To determine the centroid of the connector, use the four corners of the connector edges marked
with red circles as shown in the following figure. By using a high-accuracy optical measurement
instrument, measure the distance D. Distance D should be 66.612 mm (nominal). The allowable
distance D and tolerance is 66.612 ±0.04 mm center to center. The following table shows the
recommended optical measurement instrument specifications.
Name
OGP Smartscope
Model
CNC670
Accuracy
±5 μm
Figure 6: Connector Distance Measurement
Chapter 3: Mechanical Design Considerations
UG1091 (v1.0) April 20, 2021
Carrier Card Design for Kria SOM
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