Extreme Networks Summit X150 Series Hardware Installation Manual page 185

Installing a Summit Family Switch (Models Other than Summit X460, X480, and X650 Series)
Figure 132: Attaching the Ground Wire to a Summit x450a Series Switch
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Figure 133: Attaching the Ground Wire to a Summit X250e Series Switch
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4 Using a straight-tip torque screwdriver, tighten the retaining screw to 20 pound-inches
(2.25 Newton-meters).
5 Connect the other end of the wire to a known reliable earth ground point at your site.
Summit Family Switches Hardware Installation Guide
185