Cisco Nexus 3400-S Hardware Installation Manual page 23

Installing the Chassis
You can alternatively ground the chassis (this is required if the rack is not grounded) by attaching a
customer-supplied grounding cable to the chassis grounding pad and the facility ground.
Note
The location of the grounding pad on each switch can be found in the
The switch is grounded when you connect the chassis and the power supplies to the earth ground in the
following ways:
• You connect the chassis (at its grounding pad) to the data center ground. If the rack is fully-bonded and
Warning
Statement 1024—Ground Conductor
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available.
Warning
Statement 1046—Installing or Replacing the Unit
When installing or replacing the unit, the ground connection must always be made first and disconnected last
Before you begin
Before you can ground the chassis, you must have a connection to the earth ground for the data center building.
If you installed the switch chassis into a bonded rack (see the rack manufacturer's instructions for more
information) that now has a connection to the data center earth ground, you can ground the chassis by installing
it into the rack. Otherwise, you must connect the chassis grounding pad directly to the data center ground.
Step 1
Use a wire-stripping tool to remove approximately 0.75 inches (19 mm) of the covering from the end of the grounding
wire.
Step 2
Insert the stripped end of the grounding wire into the open end of the grounding lug, and use a crimping tool to crimp
the lug to the wire (see Callout 2 in the following figure). Verify that the ground wire is securely attached to the grounding
lug by attempting to pull the wire out of the crimped lug.
grounded, you can ground the switch by connecting it to the rack.
Note
The chassis ground connection is active even when the power supply modules
have not been grounded or connected to the switch.
Overview
Cisco Nexus 3400-S Hardware Installation Guide
Grounding the Chassis
section.
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