5420 Series Installation Guide
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Technical Specifications
> CPU, Memory Specifications
Extreme Networks, Inc. October 01, 2025
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Introduction to the 5420 Series Installation Guide
Text Conventions
Documentation and Training
Send Feedback
Help and Support
New in this Guide
5420 Series Overview
5420F-8W-16P-4XE Switch Features
5420F-24P-4XE Switch Features
5420F-24S-4XE Switch Features
5420F-24T-4XE Switch Features
5420F-16MW-32P-4XE Switch Features
5420F-16W-32P-4XE Switch Features
5420F-48P-4XE Switch Features
5420F-48P-4XL Switch Features
5420F-48T-4XE Switch Features
5420M-24T-4YE Switch Features
5420M-24W-4YE Switch Features
5420M-24W-24S-4YE Switch Features
5420M-16MW-32P-4YE Switch Features
5420M-48T-4YE Switch Features
5420M-48W-4YE Switch Features
Secure Boot
Manage Your Switch
Universal Ethernet Ports
Fan Modules for Use with Your Switch
Fan Modules
Power Supplies for Use with Your Switch
150 W AC Power Supply
600 W AC PoE Power Supply
920 W AC PoE Power Supply
1200 W AC PoE Power Supply
2000 W AC PoE Power Supply
Minimum Software Version for Power Supplies on 5420 Series Switches
Site Preparation
Plan Your Site
Operating Environment Requirements
Meet Building and Electrical Codes
Set Up the Wiring Closet
Control the Temperature
Control the Humidity Level
Protect Your System from ESD (Electrostatic Discharge)
Rack Specifications and Recommendations
Mechanical Recommendations for the Rack
Ground the Rack
Provide Adequate Space for the Rack
Secure the Rack
Evaluate and Meet Cable Requirements
Label Cables and Keep Accurate Records
Install Cable
Handle Fiber Optic Cable
Cable Distances and Types
Use RJ45 Connector Jackets
Prevent Radio Frequency Interference (RFI)
Meet Power Requirements
Requirements for PoE Devices
Power Supply Requirements
Power Cord Requirements
UPS (Uninterruptible Power Supply) Requirements
Select a UPS
Calculate Volt-Amperage Requirements
Provide a Suitable UPS Transition Time
Follow Applicable Industry Standards
Build Stacks
Introduction to Stacking
Build Basic Stacks
Slot Numbers in Stacks
Primary/Backup Switch Redundancy
SummitStack Topologies
Ring Topology: Recommended for Stacking
Daisy Chain Topology: Not Recommended for Stacking
SummitStack Terms
Plan to Create Your Stack
Enable and Disable the Stacking Support Option
Recommendations for Placing Switches for Stacked Operation
Recommendations for Configuring Stacks
Combine Switches from Different Series
Select Stacking Cables
Use the Extreme Stacking Tool
Set up the Physical Stack
Connect the Switches to Form the Stack Ring
Examples of Valid Stacking Configurations
Example: Basic Stack with Four Switches
Example: Basic Stack with Eight Switches
Example: Stacked Switches across Several Racks
Connect Your Stack to the Management Network
Install Your Switch
Safety Considerations for Installation
What You Will Need for the Installation
Attach the Switch to a Rack or Cabinet
Install Optional Components
Install Internal Power Supplies
Connect Network Interface Cables
Turn on the Switch
Activate and Verify the Switch
Connect to a Management Console
Log In for the First Time on Switch Engine
Configure the Switch's IP Address for the Management VLAN
Change the Switch OS via the Bootloader Menu
Change the Switch OS via the Startup Menu
Log In for the First Time on Fabric Engine
Remove and Replace Components
Remove a Switch from a Rack
Remove a Switch from a Two-Post Rack
Replace Power Supplies
Power Supply Airflow Direction Requirements
Replace a Power Supply
Replace Fan Modules
Fan Airflow Direction Requirements
Replace a Fan Module
Monitor the Switch
System Status LEDs
Monitor Inlet Air Temperature
Technical Specifications
5420 Series Technical Specifications
Acoustic Noise and Fan Speed
CPU, Memory Specifications
Mean Time Between Failures
Power Specifications
Environmental
Standards
EMI/EMC Standards
Power Cord Requirements for AC-Powered Switches and AC Power Supplies
Console Connector Pinouts
Safety and Regulatory Information
Considerations Before Installing
General Safety Precautions
Maintenance Safety
Fiber Optic Ports and Optical Safety
GBIC, SFP (Mini-GBIC), QSFP+, XENPAK, and XFP Regulatory Compliance
Cable Routing for LAN Systems
Install Power Supply Units and Connect Power
Select Power Supply Cords
Battery Notice
Battery Warning - Taiwan
EMC Warnings
Japan (VCCI Class A)
Korea EMC Statement
CPU, Memory Specifications
CPU/Memory
1-core, 1.7GHz x86 ARM CPU (Cortex A72)
2 GB DDR4 ECC memory
1 GB SLC NAND Flash Memory
(2 GB SLC NAND Flash Memory for 5420M-24W-24W-4YE)
4 MB packet buffer per chip
