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Replacing An Ac Power Supply - Cisco Nexus 3400 Series Hardware Installation Manual

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Replacing Modules
a) Hold the fan module with the sheet metal flange holding the connector on the bottom.
b) Place the fan module into the front chassis cavity so it rests on the chassis, and then push the fan module into the
chassis as far as it can go until the captive screw makes contact with the chassis.
c) Tighten the captive screw.
d) Listen for the fans if the device is powered on. You should immediately hear them operating. If you do not hear them,
ensure that the fan module is inserted completely in the chassis and the faceplate is flush with the outside surface of
the chassis.
e) Verify that the LED is green. If the LED is not green, one or more fans are faulty. If this problem occurs, contact
your customer service representative for a replacement part.

Replacing an AC Power Supply

You can replace an AC power supply during operations so long as there is another power supply installed and
operating during the replacement. The switch requires only one power supply for operations, so you can hot
swap the redundant power supply during operations. If there is only one power supply installed in the chassis,
you can replace it by installing the new power supply in the open power supply slot before removing the other
power supply. The module number can be found on the chassis.
Before you begin
• Verify that you have an ESD wrist strap or other device to prevent ESD damage to the components that
• Verify that you have an antistatic surface or bag for placing the power supply module that you remove
• Verify that the replacement power supply module has the correct direction of airflow (it has the same
Step 1
Attach an ESD wrist strap or other ESD device to your body and an earth ground to prevent ESD damage.
You can attach the ESD device to any earth ground or grounded object, such as a grounded rack or ground connection
on a chassis.
Step 2
Remove the power supply as follows:
a) Pull the power cord out from the power receptacle on the power supply to be removed and verify that the OK LED
turns off.
b) Remove the power supply from the chassis by pushing and holding its thumb latch to the left and pulling the power
supply part way out of the chassis.
c) Place your other hand under the power supply to support it while you slide it out of the chassis.
Either place the power supply on an antistatic surface or pack it in its packing materials.
d) If the power supply slot is to remain empty, install a blank power supply filler panel (part number N2200-P-BLNK).
Step 3
Install the replacement power supply as follows:
you touch.
from the chassis.
coloring as the other fan and power supply modules in the same chassis). Otherwise the switch can
overheat and shut down.
Replacing an AC Power Supply
Cisco Nexus 3400 Hardware Installation Guide
47

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