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The airflow direction of the power supply must match that of the installed fan assemblies. All must
be either exhaust or intake.
Note
Power supplies are hot-swappable. However, they should be inserted or removed without a
power cord being connected to a power source to avoid damage.
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."
Inserting a new AC power supply
Use the following steps to install an AC power supply in the SLX 9640 device.
1. Power supply slot
2. Release lever
Figure 43: Installing an AC power supply unit
1. If replacing a power supply, remove the previously installed power supply from the appropriate slot
by pressing the release lever and pulling the power supply handle.
2. If installing a new power supply into a slot covered with a filler panel:
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a. Press the release lever on the filler panel.
b. Remove the filler panel.
3. Before opening the package that contains the power supply, touch the bag to the switch casing to
discharge any potential static electricity. Extreme recommends using an ESD wrist strap during
installation.
4. Remove the power supply from the anti-static shielded bag.
Inserting a new AC power supply
Power Supplies
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ExtremeRouting SLX 9640 Hardware Installation Guide