- play_arrow Planning
- play_arrow Site Preparation
- Planning a QFX3000-M QFabric System Deployment
- Site Preparation Checklist for a QFX3100 Director Device
- Site Preparation Checklist for a QFX5100 Device
- Site Preparation Checklist for a QFX3600 or QFX3600-I Device
- Site Preparation Checklist for a QFX3500 Device
- Site Preparation Checklist for EX4300 Switches
- Site Preparation Checklist for EX4200 Switches
- General Site Guidelines
- Site Electrical Wiring Guidelines
- Environmental Requirements and Specifications for a QFX3100 Director Device
- Environmental Requirements and Specifications for QFX3600 and QFX3600-I Devices
- Environmental Requirements and Specifications for a QFX3500 Device
- Environmental Requirements and Specifications for a QFX5100 Device
- Environmental Requirements and Specifications for EX Series Switches
- play_arrow Rack and Cabinet Requirements
- Rack Requirements for a QFX3100 Director Device
- Rack Requirements for a QFX5100 Device
- Rack Requirements for a QFX3600 or QFX3600-I Device
- Rack Requirements for a QFX3500 Device
- Rack Requirements for EX4300 Switches
- Rack Requirements for EX4200 Switches
- Cabinet Requirements for a QFX3100 Director Device
- Cabinet Requirements for a QFX5100 Device
- Cabinet Requirements for a QFX3600 or QFX3600-I Device
- Cabinet Requirements for a QFX3500 Device
- Cabinet Requirements for EX4300 Switches
- Cabinet Requirements for EX4200 Switches
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX3100 Director Device
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX5100 Device
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX3600 or QFX3600-I Device
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX3500 Device
- Clearance Requirements for Airflow and Hardware Maintenance for EX4300 Switches
- Clearance Requirements for Airflow and Hardware Maintenance for EX4200 Switches
- play_arrow Port and Interface Specifications
- USB Port Specifications for the QFX Series
- USB Port Specifications for an EX Series Switch
- Determining Transceiver Support for QFabric Systems
- Console Port Connector Pinouts for the QFX Series
- Console Port Connector Pinout Information
- Management Port Connector Pinouts for the QFX Series
- RJ-45 Management Port Connector Pinout Information
- Management Port Connector Pinout Information for an EX4200 Switch
- Network Module Port Connector Pinouts for a QFX3100 Director Device
- play_arrow Cable Specifications
- Cable Specifications for Copper-Based Control Plane Connections for the QFabric System
- Cable Specifications for QSFP+ and QSFP28 Transceivers
- Cable Specifications for Console and Management Connections for the QFX Series
- Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion
- Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion
- Calculating the Fiber-Optic Cable Power Budget for a QFX Series Device
- Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device
- Calculating the EX Series Switch Fiber-Optic Cable Power Budget
- Calculating the EX Series Switch Fiber-Optic Cable Power Margin
- play_arrow Planning QFX3100 Power Requirements
- play_arrow Planning QFX5100 Power Requirements
- play_arrow Planning QFX3600 and QFX3600-I Power Requirements
- play_arrow Planning QFX3500 Power Requirements
- play_arrow Planning EX4300 Power Requirements
- play_arrow Planning EX4200 Power Requirements
- play_arrow Compliance
- Agency Approvals for the QFX Series
- Agency Approvals for EX Series Switches
- Compliance Statements for EMC Requirements for the QFX Series
- Compliance Statements for EMC Requirements for EX Series Switches
- Compliance Statements for Acoustic Noise for EX Series Switches
- Statements of Volatility for Juniper Network Devices
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- play_arrow Safety
- play_arrow General Safety Information
- play_arrow Fire Safety Requirements
- play_arrow Installation and Maintenance Safety Information
- Installation Instructions Warning
- Chassis Lifting Guidelines for a QFX3100 Director Device
- Chassis Lifting Guidelines for a QFX3600 or QFX3600-I Device
- Chassis Lifting Guidelines for a QFX3500 Device
- Chassis Lifting Guidelines for a QFX5100 Device
- Chassis Lifting Guidelines for EX4300 Switches
- Chassis Lifting Guidelines for EX4200 Switches
- Restricted Access Warning
- Ramp Warning
- Rack-Mounting and Cabinet-Mounting Warnings
- Grounded Equipment Warning
- play_arrow Radiation and Laser Warnings
- play_arrow Maintenance and Operational Safety Warnings
- play_arrow Power and Electrical Safety Information
- General Electrical Safety Guidelines and Warnings
- Prevention of Electrostatic Discharge Damage
- Action to Take After an Electrical Accident
- AC Power Electrical Safety Guidelines
- AC Power Disconnection Warning
- DC Power Electrical Safety Guidelines
- DC Power Disconnection Warning
- DC Power Grounding Requirements and Warning
- DC Power Wiring Sequence Warning
- DC Power Wiring Terminations Warning
- Multiple Power Supplies Disconnection Warning
- TN Power Warning
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- play_arrow Installation
- play_arrow Before You Begin
- play_arrow Installing a QFX3100 Director Device
- Installing and Connecting a QFX3100 Director Device
- Unpacking a QFX3100 Director Device
- Mounting a QFX3100 Director Device on Two Posts in a Rack or Cabinet
- Mounting a QFX3100 Director Device on Four Posts in a Rack or Cabinet
- Connecting AC Power to a QFX3100 Director Device
- Powering On a QFX3100 Director Device
- Connecting a QFX Series Device to a Management Console
- play_arrow Installing a QFX5100-24Q Interconnect Device or QFX5100 Node Device
- play_arrow Installing a QFX3600-I Interconnect Device or QFX3600 Node Device
- Installing and Connecting a QFX3600 or QFX3600-I Device
- Unpacking a QFX3600 or QFX3600-I Device
- Mounting a QFX3600 or QFX3600-I Device on Two Posts in a Rack or Cabinet
- Mounting a QFX3600 or QFX3600-I Device on Four Posts in a Rack or Cabinet
- Connecting Earth Ground to QFX3600 or QFX3600-I Devices
- Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting a QFX Series Device to a Management Console
- play_arrow Installing a QFX3500 Node Device
- Installing and Connecting a QFX3500 Device
- Unpacking a QFX3500 Device
- Mounting a QFX3500 Device in a Rack or Cabinet
- Connecting Earth Ground to a QFX3500 Device
- Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting a QFX Series Device to a Management Console
- play_arrow Cabling a Copper-Based Control Plane for the QFX3000-M QFabric System
- Interconnecting Two EX Series Switches for QFX3000-M QFabric System Control Plane Redundancy
- Connecting QFX3100 Director Devices in a Director Group
- Connecting QFX3100 Director Devices to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3100 Director Device to a Network for Out-of-Band Management
- Connecting a QFX5100-24Q Interconnect Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600-I Interconnect Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX5100 Node Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600 Node Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3500 Node Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- play_arrow Cabling a Fiber-Based Control Plane for the QFX3000-M QFabric System
- Interconnecting Two EX Series Switches for QFX3000-M QFabric System Control Plane Redundancy
- Connecting QFX3100 Director Devices in a Director Group
- Connecting QFX3100 Director Devices to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3100 Director Device to a Network for Out-of-Band Management
- Connecting a QFX5100-24Q Interconnect Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600-I Interconnect Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX5100 Node Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600 Node Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3500 Node Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- play_arrow Cabling the Data Plane for the QFX3000-M QFabric System
- Connecting a QFX5100 Node Device to a QFX3600-I Interconnect Device
- Connecting a QFX5100 Node Device to a QFX5100-24Q Interconnect Device
- Connecting a QFX3600 Node Device to a QFX3600-I Interconnect Device
- Connecting a QFX3600 Node Device to a QFX5100-24Q Interconnect Device
- Connecting a QFX3500 Node Device to a QFX3600-I Interconnect Device
- Connecting a QFX3500 Node Device to an QFX5100-24Q Interconnect Device
- play_arrow Performing the Initial Configuration
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- play_arrow Maintenance
- play_arrow Removing or Replacing a Device
- Before you Power Off the Director Device
- Powering Off a QFX3100 Director Device
- Powering Off an Existing QFabric Node Device
- Powering Off an Interconnect Device on a QFX3000-M QFabric System
- Adding or Replacing a QFX3100 Director Device in a QFabric System
- Adding or Replacing an Interconnect Device in a QFX3000-M QFabric System
- Adding or Replacing a Node Device in a QFabric Node Group
- Removing a QFX3100 Director Device from a Rack or Cabinet
- Removing a QFX5100 Device from a Rack or Cabinet
- Removing a QFX3600 or QFX3600-I Device from a Rack or Cabinet
- Removing a QFX3500 Device from a Rack or Cabinet
- play_arrow Replacing QFX3100 Components
- Installing and Removing QFX3100 Director Device Hardware Components
- Removing a Power Supply from a QFX3100 Director Device (includes video)
- Installing a Power Supply in a QFX3100 Director Device (includes video)
- Removing a Fan Module from a QFX3100 Director Device
- Installing a Fan Module in a QFX3100 Director Device
- Removing a Network Module from a QFX3100 Director Device
- Installing a Network Module in a QFX3100 Director Device
- Removing an HDD Module from a QFX3100 Director Device
- Installing an HDD Module in a QFX3100 Director Device
- play_arrow Replacing QFX3500 Components
- Installing and Removing QFX3500 Device Hardware Components
- Installing a Power Supply in a QFX3500 Device
- Removing a Power Supply from a QFX3500 Device
- Installing a Fan Tray in a QFX3500 Device
- Removing a Fan Tray from a QFX3500 Device
- Installing a Management Board in a QFX3500 Device
- Removing a Management Board from a QFX3500 Device
- play_arrow Replacing QFX3600 or QFX3600-I Components
- play_arrow Replacing QFX5100 Components
- Installing and Removing QFX5100 Device Hardware Components
- Removing a Power Supply from a QFX5100 Device
- Installing a Power Supply in a QFX5100 Device
- Removing an Expansion Module from a QFX5100 Device
- Installing an Expansion Module in a QFX5100 Device
- Removing a Fan Module from a QFX5100 Device
- Installing a Fan Module in a QFX5100 Device
- play_arrow Replacing EX4300 Components
- play_arrow Replacing EX4200 Components
- play_arrow Replacing Transceivers and Fiber-Optic Cables
- play_arrow Routine Maintenance
- play_arrow Viewing QFX3100 System Information
- play_arrow Viewing QFX5100 System Information
- play_arrow Viewing QFX3600 or QFX3600-I System Information
- Chassis Status LEDs in the QFX3600 and QFX3600-I Device
- Management Port LEDs in the QFX3600 and QFX3600-I Device
- Access Port and Uplink Port LEDs on a QFX3600 or QFX3600-I Device
- Fan Tray LED on a QFX3600 or QFX3600-I Device
- AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device
- DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device
- play_arrow Viewing QFX3500 System Information
- play_arrow Viewing EX4300 System Information
- LCD Panel in EX4300 Switches
- Chassis Status LEDs on EX4300 Switches
- Management Port LEDs on EX4300 Switches
- Network Port, Built-In QSFP+ Port, Uplink Port, and Uplink Module Port LEDs on EX4300 Switches
- AC Power Supply LEDs in EX4300 Switches
- DC Power Supply LEDs in EX4300 Switches
- Dashboard for EX Series Switches
- play_arrow Viewing EX4200 System Information
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- play_arrow Troubleshooting
- play_arrow Knowledge Base
- play_arrow Restoring Junos OS
- play_arrow Restoring QFX3100 Volumes
- play_arrow Returning Hardware
- Returning a QFX3100 Director Device or Component for Repair or Replacement
- Returning a QFX5100 Device or Component for Repair or Replacement
- Returning a QFX3600 or QFX3600-I Device or Component for Repair or Replacement
- Returning a QFX3500 Device or Component for Repair or Replacement
- Returning an EX4300 Switch or Component for Repair or Replacement
- Returning an EX4200 Switch or Component for Repair or Replacement
- Locating the Serial Number on a QFX3100 Director Device or Component
- Locating the Serial Number on a QFX5100 Device or Component
- Locating the Serial Number on a QFX3600 or QFX3600-I Device or Component
- Locating the Serial Number on a QFX3500 Device or Component
- Locating the Serial Number on an EX4300 Switch or Component
- Locating the Serial Number on an EX4200 Switch or Component
- Packing a QFX3100 Director Device or Component for Shipping
- Packing a QFX5100 Device or Component for Shipping
- Packing a QFX3600 or QFX3600-I Device or Component for Shipping
- Packing a QFX3500 Device or Component for Shipping
- Packing an EX4300 Switch or Component for Shipping
- Packing an EX4200 Switch or Component for Shipping
- Contacting Customer Support to Obtain a Return Materials Authorization for a QFX Series Device or Component
- play_arrow Alarms and System Log Messages
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- play_arrow Downloads
AC Power Supply in a QFX3100 Director Device
The AC power supply in a QFX3100 Director Device is a hot-insertable and hot-removable field-replaceable unit (FRU).
You can install up to two AC power supplies in a QFX3100 Director device. Power supplies are installed in the power supply slots on the back of the chassis. All QFX3100 Director devices are shipped with two AC power supplies.
Each AC power supply weighs approximately 2.5 lb (1.1 kg). See Figure 1.

Each power supply has its own fan and is cooled by its own internal cooling system. Hot air exhausts from the rear of the chassis.
A QFX3100 Director device supports two 560-W AC power supplies.