Establishing The System Ground - Cisco Nexus 6000 Installation Manual

Grounding the Switch
S e n d d o c u m e n t a t i o n c o m m e n t s t o n e x u s 6 k d o c s @ c i s c o . c o m .
Attach either the spring clip or the alligator clip to the ground lug screw as follows:
Step 3
a.
Note
b.
To attach the ESD wrist strap to the system ground lug screw for any of the Cisco Nexus 6000 switches,
clip the grounding wire to the screw that attaches the grounding lug to the switch chassis .
In addition, follow these guidelines when handling modules:
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Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be
between 1 and 10 megohm (Mohm).

Establishing the System Ground

This section describes how to connect a system ground to the Cisco Nexus 6000 Series switch.
You must use the system ground on AC-powered systems if you are installing this equipment in a U.S.
or European Central Office.
The system ground provides additional grounding for EMI shielding requirements and grounding for the
low-voltage supplies (DC-DC converters) on the modules and is intended to satisfy the Telcordia
Technologies requirements for supplemental bonding and grounding connections. You must observe the
following system grounding guidelines for your chassis:
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Cisco Nexus 6000 Series Hardware Installation Guide
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If you are using the ESD wrist strap that is supplied with the FRUs, squeeze the spring clip jaws
open, position the spring clip to one side of the system ground lug screw head, and slide the spring
clip over the lug screw head so that the spring clip jaws close behind the lug screw head.
The spring clip jaws do not open wide enough to fit directly over the head of the lug screw or
the lug barrel.
If you are using an ESD wrist strap that is equipped with an alligator clip, attach the alligator clip
directly over the head of the system ground lug screw or to the system ground lug barrel.
Handle carriers by available handles or edges only; avoid touching the printed circuit boards or
connectors.
Place a removed component board-side-up on an antistatic surface or in a static-shielding container.
If you plan to return the component to the factory, immediately place it in a static-shielding
container.
Never attempt to remove the printed circuit board from the metal carrier.
You must install the system ground connection with any other rack or system power ground
connections that you make. The system ground connection is required if this equipment is installed
in a U.S. or European Central Office.
You must connect both the system ground connection and the power supply ground connection to
an earth ground. The system ground connection is required if this equipment is installed in a U.S.
or European Central Office.
You do not need to power down the chassis because the Cisco Nexus 6000 Series switches are
equipped with AC-input power supplies.
Chapter 2 Installing the Cisco Nexus 6000 Series Switches
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