Cisco Nexus 9504 - Installing or Replacing a 3-Kw AC Power Supply

If you are using only one power source for the combined mode or n+1 redundancy mode, you can install the
power supplies in any of the power supply slots on the chassis. If you are using two power sources for the
n+n redundancy mode, you must connect the power supplies in slots 1 and 2 to one power source and the
power supplies in slots 3 and 4 to the other power source. With n+n redundancy mode, divide the power
supplies evenly between the first half of the slots and the last half of the slots. The amount of redundant power
for the switch equals the amount of available power for the switch.
Statement 1034—Backplane Voltage
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution
when servicing.
Warning
Statement 1029—Blank Faceplates and Cover Panels
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous
voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might
disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the
system unless all cards, faceplates, front covers, and rear covers are in place.
Warning
You can install or replace any of the following Cisco Nexus 9500 Series power supplies in this switch:
• 3-kW AC Power Supply
• 3-kW Universal AC/DC Power Supply
• 3.15-kW Dual Input Universal AC/DC Power Supply
• 3-kW DC Power Supply
Installing or Replacing a 3-kW AC Power Supply
Before you begin
• The AC power source must be installed within reach of the power cables.
• The AC power source meets the power specifications that the switch requires.
• There are one or two AC power sources available. If using n+n redundancy, there must be two power
sources available. Otherwise, only one power source is required.
Step 1 Open the packaging for the new 3-kW AC 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 screws 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.
Cisco Nexus 9504 NX-OS Mode Switch Hardware Installation Guide
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Replacing or Installing Modules, Fan Trays, and Power Supplies
Installing or Replacing a 3-kW AC Power Supply