Power Supplies; Precautions Specific To Power Supplies; Power Supplies For Use With Your Switch - Extreme Networks 8720 Hardware Installation Manual

Power Supplies

Precautions specific to power supplies

Power Supplies for Use with Your Switch

Precautions specific to power supplies
Warning
Make sure that the power source circuits are properly grounded, then use the
power cord supplied with the device to connect it to the power source.
Warning
If the installation requires a different power cord than the one supplied with
the device, make sure you use a power cord displaying the mark of the safety
agency that defines the regulations for power cords in your country. The mark
is your assurance that the power cord can be used safely with the device.
Caution
Disassembling any part of the power supply and fan assembly voids the
warranty and regulatory certifications. There are no user-serviceable parts
inside the power supply and fan assembly.
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.
Power Supplies for Use with Your Switch
Each 8720 switch runs with two replaceable internal power supply modules that
provide all of the power needed for the switch to operate. You can remove one power
supply module without interrupting the switch's operation. Supported power supply
configurations include two 750 W AC power supply modules, two 750 W DC power
supply modules, or one 750 W AC and one 750 W DC power supply module. Power
on page 17
on page 17
Extreme 8720 Switch Hardware Installation Guide 17