Cisco NCS 2006 Hardware Installation Manual page 357

Connecting Power and Ground
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
1
3
Ground lug 2
Screw
Cisco NCS 2000 Series Hardware Installation Guide
Power and Ground
Washer
329