Extreme 8720 Switch Hardware Installation Guide
> Cautions and Danger Notices
Published April 2023
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Preface
Text Conventions
Documentation and Training
Getting Help
Providing Feedback
About this Document
Supported hardware and software
What is new in this document
Device Overview
Hardware features
Port-side view of the 8720 Switch
Nonport-side view of the 8720 Switch
Device management options
Power Supplies
Precautions specific to power supplies
Power Supplies for Use with Your Switch
750 W AC Power Supply
750 W DC Power Supply
Preparing for the Installation
Preparing for the Installation
Operating Environment Requirements
Meeting Building and Electrical Codes
Setting up the Wiring Closet
Controlling the Temperature
Controlling the Humidity Level
Protecting Your System from ESD (Electrostatic Discharge)
Rack Specifications and Recommendations
Mechanical Recommendations for the Rack
Grounding the Rack
Providing Adequate Space for the Rack
Securing the Rack
Evaluating and Meeting Cable Requirements
Labeling Cables and Keeping Accurate Records
Installing Cable
Handling Fiber Optic Cable
Cable Distances and Types
SFP/SFP+ Cable Distances and Types
Using RJ45 Connector Jackets
Preventing Radio Frequency Interference (RFI)
Meeting Power Requirements
Power Supply Requirements
Requirements for Power Cords
UPS (Uninterruptible Power Supply) Requirements
Selecting a UPS
Calculating Volt-Amperage Requirements
Providing a Suitable UPS Transition Time
Following Applicable Industry Standards
Installing Your Device
Installing Your Switch
Safety Considerations for Installing Switches
What You Will Need for the Installation
Attaching the Switch to a Rack
Attaching the Switch to a Four-Post Rack
Attaching the Switch to a Two-Post Rack
Installing Optional Components
Installing Internal Power Supplies
Installing a 750 W Internal AC Power Supply
Installing a 750 W Internal DC Power Supply
Required Tools and Materials for Installing a 750 W DC Power Supply
Preparing the Cables for a 750 W DC Power Supply
Installing a 750 W DC Power Supply
Connecting the Ground Wire to a 750 W DC Power Supply
Connecting a 750 W DC Power Supply to the Source Voltage
Powering up the Switch
Connecting Network Interface Cables
Activating and Verifying the Switch
Establishing a serial connection
Configuring the Switch for Use
Monitoring the Switch
8720 Switch LEDs
750 W AC Power Supply LEDs
750 W DC Power Supply LEDs
Removing and Replacing Components
Replacing Internal Power Supplies
Replacing Fan Modules
Removing the Switch from the Rack
Technical Specifications
8720 Switch Technical Specifications
750 W Power Supplies Technical Specifications
Power Cord Requirements for AC-Powered Switches and AC Power Supplies
Safety and Regulatory Information
Safety and Regulatory Information
Considerations Before Installing
General Safety Precautions
Maintenance Safety
Cable Routing for LAN Systems
Installing Power Supply Units and Connecting Power
Selecting Power Supply Cords
Battery Notice
Regulatory Statements
CE statement
China ROHS
BSMI statement (Taiwan)
Canadian requirements
China CCC statement
Australia (RCM)
Federal Communications Commission (FCC) Notice
Germany statement
KCC statement (Republic of Korea)
Japan (VCCI Class A)
Japan power cord
Cautions and Danger Notices
Cautions
Danger Notices
Cautions and Danger Notices
