Juniper QFX Series Hardware Guide

Table 12: Fan Tray LED in a QFX5110 Switch
DescriptionStateColorName
The fan module is operating normally. The system
has verified that the module is engaged, that the
airflow is in the correct direction, and that the fan is
operating correctly.
On steadilyGreenFan
An error has been detected in the fan module.
Replace the fan module as soon as possible. Either
the fan has failed or it is seated incorrectly. To
maintain proper airflow through the chassis, leave
the fan module installed in the chassis until you are
ready to replace it.
BlinkingAmber
Under normal operating conditions, the fan modules operate at a moderate speed.
Temperature sensors in the chassis monitor the temperature within the chassis.
The system raises an alarm if a fan module fails or if the ambient temperature inside the
chassis rises above the acceptable range. If the temperature inside the chassis rises
above the threshold temperature, the system shuts down automatically.
Related
Documentation
QFX5110 System Overview on page 19•
• Prevention of Electrostatic Discharge Damage on page 158
• Maintaining QFX5110 Fan Modules on page 107
QFX5110 Power System
•
QFX5110 AC Power Supply Description on page 45
•
QFX5110 AC Power Specifications on page 47
•
QFX5110 AC Power Cord Specifications on page 47
•
QFX5110 AC Power Supply LEDs on page 48
•
QFX5110 DC Power Supply Description on page 49
•
QFX5110 DC Power Specifications on page 51
•
QFX5110 DC Power Supply LEDs on page 52
QFX5110 AC Power Supply Description
Except for the QFX5110-32Q-CHAS, the QFX5110 switches are shipped from the factory
with two 650 W power supplies pre-installed. See Figure 15 on page 46 for an example
of a QFX5110 AC power supply. Each power supply is a hot-removable and hot-insertable
field-replaceable unit (FRU) when the second power supply is installed and running. You
can install replacement power supplies in the two slots next to the fan modules without
powering off the switch or disrupting the switching function.
45Copyright © 2019, Juniper Networks, Inc.
Chapter 1: Overview

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)