Chassis and Power Supplies
Chassis Airflow
OmniSwitch 8800 Hardware Users Guide
December 2004
page 2-37
Power Supply Fans
The chassis fan tray does not regulate power supply temperature. Instead, a cooling fan is installed in each
power supply. Because power supply bays are self-contained, each fan operates independently, cooling
only its associated power supply. Refer to the diagram below for more information.
Airflow for Power Supplies
See
for detailed power supply front panel and LED information.
1. Air Intake.
The fan unit,
located behind each power supply
front panel, pulls air from the air
intake vents on the bottom of the
power supply.
2. Airflow.
The air from the
intake vent is directed
through the vents at the bot-
tom power supply and over
the power supply’s internal
components.
3. Air Exhaust.
Airflow is
exhausted through the vents
located at the top of the
power supply.