Cisco 1120 Hardware Installation page 43

Figure 7 Router Grounding Lug Location
To ground the router:
1. Use the appropriate crimping tool or pliers to crimp a 6-gauge ground that will attach to the grounding lug on the
router exterior. You must provide the wire.
Figure 6 on page 42 shows the grounding lug location.
2. Connect the other end of the wire to the router grounding connectors, using the supplied grounding screws. Tighten
the grounding screws to 10 to 12 foot-pounds of torque. Do not over tighten!
3. If necessary, strip the other end of the ground wire and connect it to a reliable earth ground, such as a grounding
rod or an appropriate grounding point on substation equipment that is grounded.
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