Extreme Networks SSA-G8018-0652 Hardware Installation Manual page 15

Reversing the Fan Module Airflow
If the SSA switch rack configuration requires the airflow to be from the power supply side to the I/O
port side, you must reverse the airflow in the switch fan modules for both switch fan module 1 and
switch fan module 2.
To reverse the airflow in the fan modules, perform the steps in the following topics:
•
Removing the Fan Module
•
Reversing the Fan Unit
•
Reinstalling the Fan Module
Removing the Fan Module
To remove the switch fan module, follow these steps:
1 Unscrew the two fan module captive screws as shown in
2 Slide the fan module forward until it is unplugged from the device.
Figure 4: Removing the Switch Fan Module
1 = Fan module captive screws
2 = Switch Fan module
Reversing the Fan Unit
The switch fan module has a single reversible dual fan unit. When the fan unit is properly seated, the
airflow indicator arrow is completely visible as shown in callout 1,
indicator arrow points in the direction the fan unit flows air through the fan module.
In the I/O port to power supply module (default) airflow configuration, the fan unit is visible (as shown
in Figure 4 on page 15, callout 4).
S-Series Stand Alone (SSA) Switch Hardware Installation Guide
on page 15
on page 15
on page 16
Figure 4.
3 = Fan module connector
4 = Fan units
Figure 5 on page 16. The airflow
Installation
15