Cisco Nexus 7000 Hardware Installation And Reference Manual page 266

Replacing an AC Power Supply Unit During Operations
Ensure that the power switch on the power supply unit is in the standby (STBY) position and that the AC
Step 2
power cords are not plugged into the AC power supply.
Step 3 Holding the AC power supply unit with one hand on its handle and the other hand under the bottom
(longest side), align the back of the power supply unit with the power supply bay and slide the power
supply into the power supply bay. Make sure the power supply unit is fully seated in the power supply
bay and that its four captive screws are aligned with their holes in the chassis.
The 6-kW AC power supply unit weighs 22 pounds (10 kg), and the 7.5-kW AC power supply unit
Note
weighs 26.4 pounds (12 kg). Use two hands to safely hold and move a power supply unit.
If you cannot push the power supply unit all the way into its bay, make sure that the power switch is
turned to STBY before pushing the power supply unit all of the way into the bay.
Screw in the four captive screws and tighten to 8 in-lb (0.9 N·m).
Step 4
Plug the power cables into the power jacks on the front of the power supply unit.
Step 5
For 6-kW of power, plug two power cables into the two power jacks.
•
For 3-kW of power, plug one power cable into one of the two power jacks.
•
The 6-kW AC power supply unit does not ship with power cables attached to it, so you must attach one
Note
or two of those cables. If necessary, you can remove the cables from the AC power supply unit that you
removed. The 7.5-kW AC power supply ships with permanently attached power cables, so you do not
need to attach power cables to that power supply unit.
Plug the power cables that are already attached to the power supply unit into the AC power source.
Step 6
Tip For power redundancy, plug each power cable into a separate AC power supply circuit.
Step 7 Turn the Power switch from STBY to ON.
Step 8 Verify the power supply operation by checking that the power supply LEDs are in the following states:
Input 1 LED is green.
•
If a second AC power cord was connected, the Input 2 LED is green.
•
Output LED is green.
•
Fault LED is not on or flashing.
•
If one or more of these LEDs is red, turn the power switch to standby (STBY), check the AC power
connections for the line in standby (STBY), and then turn the power switch back to ON. The Input and
Output LEDs for the connected power supply units should be green.
For more information on the power supply unit LED states, see
LEDs."
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
10-8
Chapter 10 Installing or Replacing Components
Appendix D, "Chassis and Module
OL-23069-07