Table 4 on page 13 lists the FRUs for the QFX5100 device and actions to take before
removing them.
Table 4: FRUs in a QFX5100 Switch
Required ActionFRU
None.Power supplies
NoneExpansion modules
None.Fan modules
None. We recommend that you disable the interface using the set interfaces
interface-name disable command before you remove the transceiver. See
“Disconnecting a Fiber-Optic Cable from a QFX Series Device” on page 219.
Optical transceivers
NOTE: If you have a Juniper Care service contract, register any addition,
change, or upgrade of hardware components at
https://www.juniper.net/customers/support/tools/updateinstallbase/ . 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.
Related
Documentation
Installing and Removing QFX5100 Device Hardware Components on page 201•
Understanding Hardware Redundancy of QFX5100 Device Components and
Functionality
The following hardware components provide redundancy on a QFX5100 switch:
•
Power supplies—The QFX5100 switch has one or two power supplies. Each power
supply provides power to all components in the switch. 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.
CAUTION: Do not connect feed A and feed B to the same power supply
input terminal.
•
Cooling system—The 1 U models of QFX5100 line of switches have five fan modules;
the 2 U QFX5100-96S has three fan modules. If a fan module fails and is unable to
13Copyright © 2016, Juniper Networks, Inc.
Chapter 1: System Overview
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