Installing Or Replacing A 3-Kw Universal Ac/Dc Power Supply - Cisco Nexus 9504 Hardware Installation Manual

Replacing or Installing Modules, Fan Trays, and Power Supplies
The lever will click when you rotate it all the way to the front of the power supply. Be sure that the power supply is
fully inserted into the slot. The front of the power supply will be even with the surface of the chassis.
g) Attach the power cable to the power receptacle on the power supply and rotate the power cable holder onto the plug
on the cable.
h) Make sure that the other end of the power cable is attached to the AC power source in one of the following ways:
• If you are using the combined power mode or the n+1 redundancy mode, you can connect the power cable to
as few or as many power sources/grids as you like.
• If you are using the n+n redundancy mode, you must connect the power cable to the same power source as used
by the other power supplies in the same set of power supply slots in the chassis. The power cables for slots 1
and 2 must be connected to one power source and the power cables in slots 3 and 4 must be connected to another
power source.
i) Verify that the OK LED turns on and eventually becomes green.

Installing or Replacing a 3-kW Universal AC/DC Power Supply

Before you begin
• The power source must be installed within reach of the power cables.
• The power source must meet the power specifications that the switch requires.
• There are one or two power sources available. If using n+n redundancy, there must be two power sources
Step 1 Open the packaging for the new 3-kW Universal AC/DC power supply and inspect the module for damage.
If the module is damaged, contact the Technical Assistance Center (TAC).
Step 2
If you are installing the module in an empty slot, remove the blank filler plate that is already in that slot. Unscrew its
captive screw and pull it out of the slot. If you are using the combined power mode or n+1 redundancy, you can use any
power supply slot in the chassis. If you are using n+n redundancy mode, you must be sure that you are inserting the power
supply in a slot that is used for the desired power supply (the power supplies in slots 1 and 2 must be connected to one
power source and the power supplies in slots 3 and 4 must be connected to the other power source). Go to Step 4.
Step 3
If you are replacing a power supply that is currently in the chassis, remove the existing module from the chassis by
following these steps:
a) Turn off the power to the power supply that you are replacing as follows:
1. Shut off the power supply by setting its power switch to 0.
2. If the power supply is connected to a DC circuit, shut off the circuit at the circuit breaker.
3. Verify that the OK LED has turned off (indicates that there is no power going to the power supply).
Note
4. Remove the power cable plug from the power supply receptacle.
available. Otherwise, only one power source is required.
If the FAULT LED is on and the color is amber, that indicates that the power source connection has
been broken.
Installing or Replacing a 3-kW Universal AC/DC Power Supply
Cisco Nexus 9504 ACI-Mode Switch Hardware Installation Guide
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