Extreme Networks ExtremeSwitching SLX 9540 - Identifying the Airflow Direction; Time and Items Required; Replacing a Power Supply

CAUTION
Ensure that the airow direction of the power supply unit matches that of the installed fan tray. The power supplies and fan
trays are clearly labeled with either a green arrow with an "E", or an orange arrow with an "I."
CAUTION
If you do not install a module or a power supply in a slot, you must keep the slot ller panel in place. If you run the chassis
with an uncovered slot, the system will overheat.
Identifying the airow direction
The power supply and fan assemblies are identied by the following airow 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.
– Nonport-side air intake
– Port-side air exhaust
– Back-to-front (nonport-side to port-side) airow
– Part numbers ending with -R
• 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.
– Nonport-side air exhaust
– Port-side air intake
– Front-to-back (port-side to nonport-side) airow
– Part numbers ending with -F
Time and items required
Installing or removing and replacing a power supply should require less than ve minutes to complete.
A new power supply (with the same airow direction as the power supply being replaced) is required to replace a power supply.
The following items are required for the power supply replacement:
• New power supply unit or ller panel
• #2 Phillips screwdriver
Replacing a power supply
When installing or replacing a power supply unit, keep in mind the following:
• Power supplies can be swapped in or out while the device is running. The remaining power supply provides enough power for
the device.
Identifying the airow direction
ExtremeSwitching SLX 9540 Hardware Installation Guide
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