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Installing or Replacing Power Supplies
e) Screw in the four captive screws to secure the fan tray to the chassis. Tighten the screws to 8 in-lb (0.9 N·m) of torque.
f) Verify that the fan tray and fabric module STATUS LEDs (on the fan tray) turn on and become green.
Installing or Replacing Power Supplies
The number of 3-kW and 3.15-kW power supplies that you install depends on the power requirements of the
switch. It also depends on the power mode that you are using. To determine the power requirements of the
switch, see the
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 to one power source and the power supplies
in slots 6 through 10 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.
Warning
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.
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.
Cisco Nexus 9516 ACI-Mode Switch Hardware Installation Guide
66
Power Requirements for Switch Modules
Replacing or Installing Modules, Fan Trays, and Power Supplies
section.
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