Using the cable-access opening in the top of the rack
You can route external cables through the rectangular cable-access opening in the top rear of the primary or
expansion rack.
Cable
access
panel
Figure 10. Location of the cable-access opening
To remove the cable-access panel, remove the two screws on the rear of the cable-access panel and
remove the panel.
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Lenovo 42U Enterprise Primary Rack and 42U Enterprise Expansion Rack Installation Guide