Cisco CRS-16 DC Installing And Removing page 4

Installing and Removing Power Components
Bonding and Grounding Guidelines
Figure 1: NEBS Bonding and Grounding Points Modular Configuration DC Power Shown
1 Chassis ground cable 2 NEBS bonding and grounding points
Note The previous figure shows a 45-degree grounding. A 180-degree (straight) grounding lug can also be used.
Caution Do not remove the chassis ground cable unless the chassis is being replaced.
The grounding points are hidden by a cover plate. When the cover plate is removed, you can easily see the
labels indicating the location of the grounding points. Two grounding points are provided; use the top grounding
point for NEBS grounding purposes.
Modular configuration power shelf grounding is accomplished by installing an external ground bracket between
the power shelves and attached to the chassis, as shown in the next figure. The bolts that connect the external
grounding brackets to the chassis and the power shelf have a torque value of 30 in.-lb (3.39 N-m). See Installing
Power Shelf Grounding Brackets for more information about installing power shelf grounding brackets.
Installing and Removing Power Components
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