![CommScope Ruckus ICX 7750 Скачать руководство пользователя страница 66](http://html1.mh-extra.com/html/commscope/ruckus-icx-7750/ruckus-icx-7750_hardware-installation-manual_2643846066.webp)
64
Ruckus ICX 7750 Switch Hardware Installation Guide
Part Number: 53-1003900-10
Managing the Ruckus ICX 7750
Replacing a power supply unit
on page 57 describes the Ruckus ICX 7750 power supply status LED colors, behaviors, and actions required, if any.
Determining the need to replace a power supply
Use one of the following methods to determine the status of the power supplies:
•
Check the PSU1 and PSU2 LEDs on the switch front panel or power supply status LED (refer to
•
Enter the
show chassis
command at the prompt to display power supply status.
Time and items required
Replacing a power supply in the Ruckus ICX 7750 should take less than two minutes to complete.
You need the following items to replace a power supply in a Ruckus ICX 7750:
•
A new power supply (must have the same part number and the same airflow label as the power supply being replaced)
•
A #1 Phillips screwdriver
Replacing a power supply
Complete the following steps to replace a power supply in a Ruckus ICX 7750.
1.
To leave the Ruckus ICX 7750 in service while replacing a power supply, verify that the other power supply (the one not being
replaced) has been powered on for at least four seconds and has a steady green status LED.
2.
Before opening the package that contains the power supply, touch the bag to the switch casing to discharge any potential static
electricity. Ruckus recommends using an ESD wrist strap during installation.
3.
Remove the power supply from the anti-static shielded bag.
4.
Ensure that the replacement power supply has the same part number and airflow label as the power supply being replaced.
5.
Unplug the power cord from the power supply that is being replaced.
6.
Using the Phillips screwdriver, unscrew the two captive screws on the power supply.
7.
Remove the power supply from the chassis by pulling the handle on the power supply out and away from the chassis.
NOTE
Do not force the installation. If the power supply does not slide in easily, ensure that the power supply is correctly oriented before
continuing.
8.
Holding the power supply level, guide it into the carrier rails on each side and gently push it all the way into the slot, ensuring that
it firmly engages with the connector.
CAUTION
Because the cooling system relies on pressurized air, do not leave any of the power supply and fan tray slots empty longer
than two minutes while the switch is operating. If a power supply or fan tray fails, leave it in the switch until it can be replaced.
CAUTION
Disassembling any part of the power supply and fan tray voids the warranty and regulatory certifications. There are no
user-serviceable parts inside the power supply and fan tray.