14Figure 22 Attaching the mounting brackets and chassis rails to the S6820-4C switch(network port-side mounting position for the mounting brackets)NOTE:Secure the mounting brackets and chassis rails to both sides of the chassis in the same way.Connecting the grounding cable to the chassisCAUTION:The primary grounding point and auxiliary grounding point 1 are located on the left panel of thechassis. If you use one of these grounding points, you must connect the grounding cable to thegrounding point before you mount the switch in the rack.As a best practice, use the primary grounding point or auxiliary grounding point 1 because thegrounding cable and grounding screw that come with the switch are suitable only for these twogrounding points.To use auxiliary grounding point 2 on the S6820-4C switch, prepare a grounding cable yourself.This section uses the primary grounding point on the S6820-32H switch as an example.To connect the grounding cable to a grounding point:1. Choose a grounding point as required.This example uses the primary grounding point.2. Unpack the grounding cable and grounding screws.3. Use two grounding screws to attach the two-hole grounding lug of the grounding cable to thegrounding holes at the grounding point. Use a screwdriver to tighten the screws. See Figure 23.