Identify The Airflow Direction; Replace Fan Modules - Extreme Networks 8820 Hardware Installation Manual

Remove and Replace Components

Identify the Airflow Direction

The power supply and fan assemblies are identified by the following airflow directions:
•
Intake power supply and fan assembly with an orange "I" label or without any label: Pulls air from the
nonport-side of the switch and exhausts it out the port side.
•
Exhaust power supply and fan assembly with a green "E" label: Pulls air from the port side of the
switch and exhausts it out the nonport-side.
•
You can check the top view of the switch to ensure proper groove alignment:
Figure 28: Airflow groove alignment (front-to-back shown)

Replace Fan Modules

1. Gently pull the tab (labeled Air Out or Air In) on the end of the fan module.
Identify the Airflow Direction
Nonport-side air intake
◦
Port-side air exhaust
◦
Back-to-front (nonport-side to port-side)
◦
airflow
Part numbers ending with -R
◦
Nonport-side air exhaust
◦
Port-side air intake
◦
Front-to-back (port-side to nonport-side)
◦
airflow
Part numbers ending with -F
◦
Extreme 8820 Hardware Installation Guide 57