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3-20
Cisco Nexus 2000 Series Hardware Installation Guide
OL-19013-05
Chapter 3 Installing a Cisco Nexus 2000 Series Fabric Extender
Removing and Installing Components
Caution Be sure that the power supply that you are installing has the same airflow direction as the fan tray module
and the other power supply. Either all of the modules must have front-to-back airflow (no black stripe
on the front of the module) or all of the modules must have back-to-front airflow (black stripe on the
front of the module). If the modules have different airflow directions in the same chassis, you will see
an error message.
To install a power supply, follow these steps:
Step 1 Ensure that the system (earth) ground connection has been made for the chassis. For ground connection
instructions, see the “Grounding the System” section on page 3-9.
Step 2 If the power supply bay has a filler panel, push and hold the thumb latch to the left, and then slide the
filler panel out of the power supply bay.
Step 3 Hold the replacement power supply by the handle and position it so that the thumb latch is on the right,
and then slide it into the power supply bay, ensuring that the power supply is fully seated in the bay.
Step 4 Engage the thumb latch so that the power supply is firmly held in place in its slot.
Step 5 Fasten the positive cable to the negative (-) terminal.
Step 6 Fasten the negative cable to the positive (+) terminal.
Step 7 Turn on the power at the circuit breaker.
Step 8 Verify power supply operation by checking that the power supply LED is green. For information about
what the power supply LEDs indicate, see the “Power Supply Status” section on page D-3.
Removing and Installing the Fan Tray
The fan tray is designed to be removed and replaced while the system is operating without causing an
electrical hazard or damage to the system, if the replacement is performed within 1 minute.
Caution Be sure that the fan tray that you are installing has the same airflow direction as the other power supply
modules in the same chassis. Either all of the modules must have front-to-back airflow (no black stripe
on the front of the module) or all of the modules must have back-to-front airflow (black stripe on the
front of the module). If the modules have different airflow directions in the same chassis, you will see
an error message.
This section includes the following topics:
• Removing a Fan Tray, page 3-21
• Installing a Fan tray, page 3-21