Power Supplies; Table 22: Frus In A Qfx3500 Device - Juniper QFabric QFX3000-G Hardware Documentation

QFX3000-G QFabric System Hardware Documentation

Table 22: FRUs in a QFX3500 Device

FRU

Power supplies

Fan trays
Management board
Optical transceivers
Related
Documentation
Understanding Redundancy of QFX3500 Device Components and Functionality
120
CAUTION: Replace a failed power supply with a blank panel or new power
supply within 1 minute of removal to prevent chassis overheating. Replace a
failed fan tray with a new fan tray within 1 minute of removal to prevent
chassis overheating.
Table 22 on page 120 lists the FRUs for the QFX3500 device and actions to take before
removing them.
Required Action
None.
None.
You must power off the QFX3500 device before replacing the management board. See
"Removing a Management Board from a QFX3500 Device" on page
None. We recommend that you disable the interface using the set interfaces
interface-name disable command before you remove the transceiver. See
a Fiber-Optic Cable from a QFX Series Device" on page
NOTE: If you have a Juniper J-Care service contract, register any addition,
change, or upgrade of hardware components at
https://www.juniper.net/customers/csc/management/updateinstallbase.jsp
Failure to do so can result in significant delays if you need replacement parts.
This note does not apply if you replace existing components with the same
type of component.
Installing and Removing QFX3500 Device Hardware Components on page 645
The following hardware components provide redundancy on a QFX3500 device:
Power supplies—The QFX3500 device has one or two power supplies. Each power
supply provides power to all components in the device. If two power supplies are
installed, the two power supplies provide full power redundancy to the device. If one
power supply fails or is removed, the second power supply balances the electrical load
without interruption.
To provide power redundancy to the system both power supplies must be installed.
Connect power source feed A to one power supply and power source feed B to the
second power supply.
654.
"Disconnecting
711.
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