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Installing or Replacing Modules, Fan Trays, and Power Supplies
1. Ensure that the power switch on the front of the power supply is set to standby (labelled as 0). The Output LED
turns off.
2. Verify that the Output LED turns off. If the LED is still on, return to Step 1.
3. If you are removing a DC power supply, ensure that the power is turned off at the power source by turning off
the power for that circuit, and verify that the Input LEDs turn off.
b) If you are removing a power supply, detach the power and ground cables as follows:
• For a 3-kW AC power supply, unplug the power cables that are attached to the power supply and the power
source.
• For a 3-kW DC power supply, open the terminal box, and use a Phillips screwdriver to remove the power cables
from their terminals. Replace the terminal box cover. Remove the power cables from the power source.
• For a 3.5-kW HVAC/HVDC power supply, release the built-in latch and unplug the power cable from the power
source.
c) Remove the power supply or blank filler plate from the power supply slot as follows:
To remove a blank filler plate, unscrew its captive screws and pull on its handle to remove the plate from
Note
the slot.
• For a 3-kW power supply, press its ejector latch to the left, pull the power supply part way out of the slot by its
handle, place your other hand under the module to support its weight, and pull it fully from the slot.
• For a 3.5-kW HVAC/HVDC power supply, disconnect the power cable from the power supply by pressing the
release button on the power cable, pull the power supply part way out of the slot by its handle, place your other
hand under the module to support its weight, and pull it fully from the slot.
Step 2
Install the new power supply in the open slot as follows:
a) Verify that the power switch on the front of the new power supply is set to standby (labelled as 0) and that the power
supply is not connected to any power sources.
b) Hold the handle on the power supply with one hand, place your other hand under the power supply to support its
weight, and position the power supply with its back end at the open power supply bay.
c) Slide the unit all the way into the power supply bay until one of the following situations occurs:
• For a 3-kW power supply, the release latch on the front of the power supply clicks and prevents you from moving
the power supply in or out of the chassis. This action completes the mounting of the power supply on this chassis.
• For a 3.5-kW power supply, the built-in latch secures the power cable to the power supply.
What to do next
• For an AC and HVAC/HVDC (when used with an input AC source) power supply, you must connect it
• For a 3-kW DC power supply, you must connect the power supply to the DC power source (see the
OL-30452-01.
to an AC power source (see the
Connecting a 3.5-kW HVAC/HVDC Power Supply to AC Power Sources
be automatically grounded through its power cable.
"Connecting a DC Power Supply to DC Power Sources" topic).
Cisco Nexus 7710 Switch Site Preparation and Hardware Installation Guide
Installing or Replacing a Power Supply in a Switch Chassis
Connecting a 3-kW AC Power Supply to AC Power Sources
and
topic). The power supply will
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