The single ground lug must be a dual-hole type, UL Listed, CSA certified and rated to accept the #4 AWG
cable. The grounding lug must be assembled on the chassis with two screws and washers. (See the figure
below).
Figure 188: Ground Lug on the NCS 2015 DC Shelf
Washer2Ground lug1
Screw3
Cisco NCS 2000 Series Hardware Installation Guide
329
Connecting Power and Ground
Power and Ground