Caution
Make sure the AC power supply circuit is not overloaded. Use proper overcurrent protection,
such as a circuit breaker, to prevent overcurrent conditions.
An AC power cord is not included with the AC power supply. You can purchase AC power cords for use
in the US and Canada from Extreme Networks or from your local supplier. The cord must meet the
requirements listed in Power Cord Requirements for AC-Powered Switches and AC Power Supplies on
page 146.
To install a 350 W, 715 W, 1100 W, or 2000 W AC power supply in a switch, follow these steps:
1. If necessary, remove a blank panel from the back of the switch.
2. Verify that the power supply is right side up.
3. Verify that the power supply's airflow direction (front-to-back) is compatible with the switch.
4. Carefully slide the power supply all the way into the power supply bay, as shown in Figure 52.
Figure 52: Installing an AC Power Supply
5. Push the power supply in until the latch snaps into place.
Caution
Do not slam the power supply into the switch.
Note
If power supplies are not installed in both power supply bays, be sure to install a cover
over the unoccupied bay. Unoccupied bays must always be covered to maintain proper
system ventilation and EMI levels.
6. Connect the power cord to the power supply.
If the power supply is equipped with a power cord retainer, use the retainer to secure the power cord
to the power supply.
7. Connect the power cord to a grounded AC power outlet.
Warning
Always make sure that the source outlet is properly grounded before plugging the AC
power cord into the AC power supply.
8. To install a second power supply, repeat the procedure.
Turn on the Switch
An AC power cord is not included with the AC power supply. You can purchase AC power cords for use
in the US and Canada from Extreme Networks or from your local supplier. The cord must meet the
Turn on the Switch
Installing Your Switch
80 ExtremeSwitching 5520 Series Hardware Installation Guide
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