Identifying The Airflow Direction; Time And Items Required; Replacing A Power Supply - Extreme Networks ExtremeRouting SLX 9640 Installation Manual

Power Supplies
Caution
Ensure that the airflow 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 filler panel in
place. If you run the chassis with an uncovered slot, the system will overheat.

Identifying 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.

Time and items required

Installing or removing and replacing a power supply should require less than five minutes to complete.
A new power supply (with the same airflow 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 filler 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.
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
◦
ExtremeRouting SLX 9640 Hardware Installation Guide

Identifying the airflow direction

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