Juniper QFX Series User Manual

QFX3500 device, follow the instructions in “Removing a Power Supply from a QFX3500
Device” on page 364.
To install a fan tray in a QFX3500 device, follow the instructions in “Installing a Fan Tray
in a QFX3500 Device” on page 365. To remove a fan tray from a QFX3500 device, follow
the instructions in “Removing a Fan Tray from a QFX3500 Device” on page 367.
To install a management board in a QFX3500 device, follow the instructions in “Installing
a Management Board in a QFX3500 Device” on page 368. To remove a management
board from a QFX3500 device, follow the instructions in “Removing a Management Board
from a QFX3500 Device” on page 369.
To install an SFP, SFP+, or QSFP+ transceiver in a QFX3500 device, follow the instructions
in “Installing a Transceiver in a QFX Series Device” on page 374. To remove an SFP, SFP+,
or QSFP+ transceiver from a QFX3500 device, follow the instructions in “Removing a
Transceiver from a QFX Series Device” on page 373.
To connect a fiber-optic cable to an SFP, SFP+, or QSFP+ transceiver in a QFX3500
device, follow the instructions in “Connecting a Fiber-Optic Cable to a QFX Series Device”
on page 377. To disconnect a fiber-optic cable from an SFP, SFP+, or QSFP+ transceiver
from a QFX3500 device, follow the instructions in “Disconnecting a Fiber-Optic Cable
from a QFX Series Device” on page 376.
Related
Documentation
AC Power Supply for a QFX3500 Device on page 73•
• Cooling System and Airflow for a QFX3500 Device on page 68
• Rear Panel of a QFX3500 Device on page 66
• Interface Specifications for SFP+ Transceivers for QFX3500 Device Access Ports on
page 108
• Interface Specifications for SFP+ DAC Cables for QFX3500 Device Access Ports on
page 117
Installing a Power Supply in a QFX3500 Device
The power supplies in a QFX3500 device are hot-removable and hot-insertable
field-replaceable units (FRUs): you can remove and replace them without powering off
the device or disrupting device functions.
•
Before you install a power supply in a QFX3500 device, ensure that you have taken
the necessary precautions to prevent electrostatic discharge (ESD) damage (see
“Prevention of Electrostatic Discharge Damage” on page 192).
•
Ensure that the airflow direction of the power supply is the same as the chassis. Labels
on the power supply handle indicate the direction of airflow. See “Cooling System and
Airflow for a QFX3500 Device” on page 68 for more information.
•
Ensure that you have the following parts and tools available to install a power supply
in a QFX3500 device:
Copyright © 2012, Juniper Networks, Inc.362
QFX3000 Hardware Documentation

Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)