Extreme Networks ExtremeSwitching 5520 Series, Руководство по установке оборудования

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There is one Micro-B USB console port on the front panel. If the Micro-B USB console port is connected,
it will be selected over the RJ45 console port. The Micro-B USB console port will disconnect when the
switch is rebooted. You can re-connect the port if needed. When the Micro-B USB console is active, any
messages from the switch to the client terminal will be echoed to both the USB console and the rear
panel RJ45 serial port; however, no user input will be accepted from the rear panel port.
There are also two USB 2.0 Type A ports: one on the front panel labeled USB 1 and one on the rear
labeled USB 2. They can be used for a bluetooth dongle or for attaching a removable memory module.
Note
The first USB storage device inserted will be mounted and can be used under EXOS as
/usr/
local/ext
. A second inserted USB storage device will not be used until the first one is
removed.
Cooling
Each base model is available with front-to-back cooling.
Switch cooling is provided by replaceable fan modules. The available fan module uses airflow from front
to back. Two modular power supply slots accommodate AC power supplies. Power supplies have
integrated cooling fans that operate independently of the switch fan.
A spare fan module (17115) with front-to-back airflow is available for 5520 Series switches.
Power Supplies
Two power supply bays accommodate AC power supplies. Power supplies have integrated cooling fans
that operate independently of the switch fans. Like the fan modules, the power supplies are available in
models with front-to-back cooling airflow. For more information about the power supplies used in the
5520 Series switches, see
Power Supplies for Use with Your Switch on page 23.
Power supplies are ordered separately.
Versatile Interface Module Options
The following Versatile Interface Module (VIM) are available for 5520 Series switches:
•
5520-VIM-4X versatile interface module that provides four 10-GbE (SFP+) ports.
•
5520-VIM-4XE versatile interface module that provides four 10-GbE (SFP+) ports, LRM/MACsec
capable.
•
5520-VIM-4YE versatile interface module that provides four 25-GbE (SFP28) MACsec capable ports.
Warning
The switch must be powered off before you install any VIM options. The interface module
options are not hot swappable.
Stacking
Each 5520 unit comes equipped with two 40GbE stacking ports. When running ExtremeEXOS, up to
eight systems can be stacked using qualified QSFP28 and QSFP+ direct attach cables and optical
ExtremeSwitching 5520 Series Overview Cooling
ExtremeSwitching 5520 Series Hardware Installation Guide 13