Cisco Nexus 9508 - Installing or Replacing Power Supplies

d) Slide the fan tray all the way into the slot until the front of the fan tray touches the chassis.
Make sure that the four captive screws on the front of the fan tray align with the four screw holes in the chassis.
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 power supplies that you install depends on the power requirements of the switch and
the power mode that you are using. To determine the power requirements of the switch, see the Power
Requirements for Switch Modules section.
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 through 4 to one power source and the
power supplies in slots 5 through 8 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 so that 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 so long
as all of the power supplies use the same type of power (not a mix of AC and DC power):
•
3-kW AC Power Supply
•
3-kW Universal AC/DC Power Supply
•
3-kW DC Power Supply
These power supplies are interchangeable so long as all of the power supplies in the same switch use AC or
DC input power (not a mix of AC and DC power sources).
Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide
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Replacing or Installing Modules, Fan Trays, and Power Supplies
Installing or Replacing Power Supplies