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Replacing a High Voltage (HVAC/HVDC) Power Supply
Step 2
Install the replacement power supply as follows:
a) Holding the replacement power supply with one hand underneath the module and the other hand holding the handle,
turn the power supply so that its release latch is on the right side and align the back end of the power supply (the end
with the electrical connections) to the open power supply slot before carefully sliding the power supply all the way
into the slot until it clicks into place.
If the power supply does not fit into the open slot, turn the module over before sliding it carefully into the
Note
open slot.
b) Test the installation by trying to pull the power supply out of the slot without using the release latch.
If the power supply does not move out of place, it is secured in the slot. If the power supply moves, carefully press
it all the way into the slot until it clicks in place.
c) Attach the power cable to the electrical outlet on the front of the power supply.
d) Make sure that the other end of the power cable is attached to the appropriate power source for the power supply.
Note
Depending on the outlet receptacle on your power distribution unit, you might need the optional jumper
cable to connect the switch to your outlet receptacle.
e)
Verify that the power supply is operational by making sure that the power supply
on what the power supply LEDs indicate, see
Replacing a High Voltage (HVAC/HVDC) Power Supply
You can replace an HVACHVDC power supply during operations so long as the other power supply provides
power to the switch.
Before You Begin
• The replacement power supply must have the same wattage and airflow direction as the power supply
• An HVAC/HVDC power source must be within reach of the power cable that will be used with the
• There must be an earth ground connection to the chassis in which you are installing the replacement
Cisco Nexus 93108TC-FX ACI Mode Hardware Installation Guide
38
being replaced. Do not mix AC, DC, HVAC/HVDC power supplies in the same switch.
You can determine the airflow direction by looking at the coloring of the latch on each
Note
power supply. HVAC/HVDC power supplies have white latches, which indicate that
they have dual airflow directional capability. Those power supplies automatically use
the same airflow direction as the fan modules installed in the same switch.
replacement power supply. If you are using n+n power redundancy, there must be a separate power
source for each power supply installed in the chassis.
power supply. HVAC/HVDC power supplies connected to AC power sources are automatically grounded
by their power cable when connected to the power supply and AC power source. HVAC/HVDC power
Power Supply LEDs, on page
Replacing Components
LED is green. For information
54.
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