Grounding The Chassis - Cisco Nexus 9396PX Hardware Installation Manual

Installing the Chassis
Step 2
Use a customer-supplied rack-mount screw (an M6 x 10 mm screw or other appropriate screw for the rack) to attach
each of the two mounting brackets on the chassis to the rack and tighten each screw to the appropriate torque setting for
the screw (for M6 x 10 mm screws, use 40 in-lbs [4.5 N·m] of torque).

Grounding the Chassis

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
• You connect each AC power supply to the earth ground automatically when you connect an AC power
• You connect each DC power supply to the earth ground when you connect the power cables to the
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.
Statement 1046—Installing or Replacing the Unit
Warning
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 connecting
its grounding pad to the rack. Otherwise, you must connect the chassis grounding pad directly to the data
center ground.
To connect the switch chassis to the data center ground, you need the following tools and materials:
• Grounding lug—A two-holed standard barrel lug that supports up to 6 AWG wire. This lug is supplied
grounded, you can ground the switch by connecting it to the rack.
The chassis ground connection is active even when the power supply modules have not
Note
been grounded or connected to the switch.
supply to an AC power source (see
connector block and insert the connector block to the power supply (see
page 27).
with the accessory kit.
Powering Up the Switch, on page
Cisco Nexus 9396PX NX-OS-Mode Switch Hardware Installation Guide

Grounding the Chassis

27).
Powering Up the Switch, on
25