Cisco Nexus 2000 Series, Installation Manual, Page: 53 / 190

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Cisco Nexus 2000 Series Hardware Installation Guide
Chapter 1 Using a Fabric Extender with a Cisco Nexus 5000 Series or Cisco Nexus 6000 Series Switch
Cisco Nexus 2224TP
To see the components that you use when installing a power supply unit, see Figure 1-23 on page 1-20
for the AC power supply with port-side exhaust airflow, Figure 1-24 on page 1-21 for the AC power
supply with port-side intake airflow, and Figure 1-25 on page 1-21 for the DC power supply with
port-side exhaust airflow.
You can order the Cisco Nexus 2224TP FEX with AC power supplies that have port-side exhaust or
port-side intake airflow for cooling or DC power supplies that have port-side exhaust airflow. The
port-side intake airflow components have a black stripe on their fan side surface for easy visual
identification. The port-side exhaust airflow components do not have a black stripe.
Caution
Be sure that all of the power supply and fan tray modules in the same chassis have the same airflow
direction and that the air intake for those modules is positioned on a cool aisle. If you install a module
that uses a different direction of airflow from the other modules in your system, you will see an error
message. If you position a chassis with its modules taking cooling air from a warm aisle, the switch can
over heat and shut down.
If one power supply is installed in the chassis, but the other power supply slot is empty, you should use
a blank filler panel to cover the empty slot.
Figure 1-26 on page 1-22 shows a blank power supply filler
panel.
For power supply specifications, see Table B-1 on page B-2 . To replace a power supply, see the
“Removing and Installing Power Supplies” section on page 4-16 .
Fan Tray
The Cisco Nexus 2224TP FEX has one fan tray that is hot swappable during operations. Depending on
whether there is a cold aisle in fan side or port-side of the chassis, you can order port-side exhaust airflow
or port-side intake airflow for the fan tray and the power supplies in the same chassis.
Table 1-12 lists
the part numbers for each of the fan trays that you can use with this chassis.
Caution
Always make sure that all of the fan tray and power supply modules have the same direction of airflow
and the same color designation for that airflow direction. The switch does not support having more than
one direction of airflow with its modules.
To see the components used when installing one of these fan trays, see Figure 1-27 (port side exhaust
airflow) or Figure 1-28 (port side intake airflow).
To replace a fan tray, see the “Removing and Installing the Fan Tray” section on page 4-21 . For LED
descriptions, see Table E-1 on page E-2 .
Table 1-12 Fan Trays for the Cisco Nexus 2224TP and 2248TP FEXs
Description Part Number
port side exhaust airflow N2K-C2248-FAN
port side intake airflow N2K-C2248-FAN-B