Installing A Reverse Airflow System For Norcal-96 - Cisco Nexus 6000 Installation Manual

Chapter 2 Installing the Cisco Nexus 6000 Series Switches

Installing A Reverse Airflow System for Norcal-96

S e n d d o c u m e n t a t i o n c o m m e n t s t o n e x u s 6 k d o c s @ c i s c o . c o m .
Installing A Reverse Airflow System for Norcal-96
In a standard airflow configuration, cold air intake is from the fan side and hot air exhaust is from the
port side. In a reverse airflow configuration, the cold air intake is from the port side and hot air exhaust
is from the fan side. A reverse air flow system must have new reverse air flow fans (four sets), new
reverse power supplies, and four reconfigured fan louvers.
A reverse airflow power supply is identified by a black colored stripe. A standard airflow power supply
does not have a black colored stripe.
A reverse airflow fan tray (N6K-C6004-FAN-B) is identified by a black colored label near the STAT
button. A standard airflow fan tray (N6K-C6004-FAN-F) is identified by a grey colored label near the
status LED.
A reverse airflow configuration for an airflow shutter or fan louver ( part number 800-38434-03), is
identified by a black band that is visible when the fan tray is removed. It also has direction arrows
engraved on the top side that should point towards the fan trays. A standard airflow configuration for a
fan louver ( part number 800-38434-03), is identified by a metallic band that is visible when the fan tray
is removed. In this configuration the direction arrows on the top side should point towards the port side.
A standard airflow configuration and reverse airflow configuration for louvres are shown in Figure 2-2.
Figure 2-2 Standard airflow configuration and reverse airflow configuration for louvres
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