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Installing Optional Components
7. Verify that the switch is level and is firmly attached to the rack.
If your switch comes with installed AC power supplies, skip to the topic:
the Switch
If your switch does not have an installed power supply, install one or two power
supplies using the instructions in
Installing Optional Components
After the switch is secured to the rack, install optional components.
For a list of the optical components supported with 8720 Switches, see
Hardware/Software Compatibility and Recommendation Matrices .
Pluggable Transceiver Modules
Extreme Networks offers several optical transceiver modules for transmitting and
receiving data over optical fiber rather than through electrical wires. Install
these modules using the instructions in
Installation Guide .
Optical Cables
Direct-attach copper and fiber cables provide connections between unpopulated SFP+,
QSFP+, and QSFP28 ports.
To install optical cables, refer to the instructions in
Transceivers Installation Guide .
Installing Internal Power Supplies
If your switch does not come with an installed internal power supply, you can install one
or two power supplies.
The 8720 Switch supports 750 W power supply units using either AC or DC power.
Follow the instructions in the following sections to install the appropriate power supply
and connect power to the switch.
•
Installing a 750 W Internal AC Power Supply
•
Installing a 750 W Internal DC Power Supply
Important
You can use either dual AC or dual DC power supplies, not a mix of both.
Installing a 750 W Internal AC Power Supply
To install a 750 W AC power supply in a switch, follow these instructions.
50
Extreme 8720 Switch Hardware Installation Guide
on page 57.
Installing Internal Power Supplies
Extreme Networks Pluggable Transceivers
Extreme Networks Pluggable
on page 50
on page 54
Installing Your Device
Powering up
on page 50.
Extreme
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