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Table of Contents

About the Documentation
Junos OS Documentation and Release Notes
Documentation Conventions
Documentation Feedback
Requesting Technical Support
Switch and Components Overview and Specifications
EX4300 Switch Overview
EX4300 Switches Hardware Overview
Software
EX4300 Switches First View
24-Port EX4300 Switches
32-Port EX4300 Switches
48-Port EX4300 Switches
Uplink Modules
Virtual Chassis
Power Supplies
Fan Modules
EX4300 Switch Components
EX4300 Switch Models
Identifying EX4300 Switch Models
Chassis Physical Specifications for EX4300 Switches
EX4300 Switch Hardware and CLI Terminology Mapping
Component Descriptions
LCD Panel in EX4300 Switches
LCD Panel Modes
LCD Panel Menus
Chassis Status LEDs on EX4300 Switches
Network Port, Built-In QSFP+ Port, Uplink Port, and Uplink Module Port LEDs on EX4300 Switches
Management Port LEDs on EX4300 Switches
Field-Replaceable Units in EX4300 Switches
AC Power Supply in EX4300 Switches
Characteristics of an AC Power Supply
AC Power Supply Airflow
N+0 Redundancy Configuration of AC Power Supplies
N+N Redundancy Configuration of AC Power Supplies
AC Power Supply LEDs in EX4300 Switches
DC Power Supply in EX4300 Switches
Characteristics of a DC Power Supply
DC Power Supply Airflow
N+0 Redundancy Configuration of DC Power Supplies
N+N Redundancy Configuration of DC Power Supplies
DC Power Supply LEDs in EX4300 Switches
Cooling System and Airflow in an EX4300 Switch
Fan Modules
Airflow Direction in EX4300 Switch Models
Front-to-Back Airflow
Back-to-Front Airflow
Do Not Mix AIR IN (AFI) and AIR OUT (AFO) Components in the Switch
Positioning the Switch
Fan Module Status
Uplink Modules in EX4300 Switches
Component Specifications
USB Port Specifications for an EX Series Switch
Console Port Connector Pinout Information for an EX Series Switch
Mini-USB Port Specifications for an EX4300 Switch
Management Port Connector Pinout Information for an EX4300 Switch
Network Port, QSFP+ Port, SFP Port, and SFP+ Port Connector Pinout Information for EX4300 Switches
Pluggable Transceivers Supported on EX4300 Switches
SFP+ Direct Attach Cables for EX Series Switches
Cable Specifications
Standards Supported by These Cables
QSFP+ Direct Attach Cables for EX Series Switches
Cable Specifications
RJ-45 to DB-9 Serial Port Adapter Pinout Information for a Switch
Planning for Switch Installation
Site Preparation
Site Preparation Checklist for EX4300 Switches
General Site Guidelines
Site Electrical Wiring Guidelines
Environmental Requirements and Specifications for EX Series Switches
Mounting and Clearance Requirements
Rack Requirements for EX4300 Switches
Cabinet Requirements for EX4300 Switches
Clearance Requirements for Airflow and Hardware Maintenance for EX4300 Switches
Cable Specifications
Network Cable Specifications for EX4300 Switches
Planning Power Requirements
AC Power Supply Specifications for EX4300 Switches
DC Power Supply Specifications for EX4300 Switches
AC Power Cord Specifications for an EX4300 Switch
Installing and Connecting the Switch and Switch Components
Installing the Switch
Installing and Connecting an EX4300 Switch
Unpacking an EX4300 Switch
Parts Inventory (Packing List) for an EX4300 Switch
Mounting an EX4300 Switch
Mounting an EX4300 Switch on Two Posts of a Rack or Cabinet
Mounting an EX4300 Switch on Four Posts of a Rack or Cabinet
Mounting an EX4300 Switch in a Recessed Position in a Rack or Cabinet
Mounting an EX4300 Switch on a Wall
Installing Switch Components
Installing and Removing EX4300 Switch Hardware Components
Installing an AC Power Supply in an EX4300 Switch
Installing a DC Power Supply in an EX4300 Switch
Installing a Fan Module in an EX4300 Switch
Installing an Uplink Module in an EX4300 Switch
Installing a Transceiver in an EX Series Switch
Connecting the Switch
Connecting Earth Ground to an EX Series Switch
Parts and Tools Required for Connecting an EX Series Switch to Earth Ground
Special Instructions to Follow Before Connecting Earth Ground to a Switch
Connecting Earth Ground to an EX Series Switch
Connecting AC Power to an EX4300 Switch
Connecting DC Power to an EX4300 Switch
Registering Products—Mandatory for Validating SLAs
Connecting EX Series Switches in a Virtual Chassis Fabric
Connecting a Switch to a Network for Out-of-Band Management
Connecting a Switch to a Management Console
Connecting an EX4300 Switch to a Management Console Using the Mini-USB Type-B Console Port
Connecting a Fiber-Optic Cable to a Switch
Performing Initial Configuration
EX4300 Default Configuration
Connecting and Configuring an EX Series Switch (CLI Procedure)
Connecting and Configuring an EX Series Switch (J-Web Procedure)
Removing Switch Components
Removing Switch Components
Installing and Removing EX4300 Switch Hardware Components
Removing an AC Power Supply from an EX4300 Switch
Removing a DC Power Supply from an EX4300 Switch
Removing an Uplink Module from an EX4300 Switch
Removing a Fan Module from an EX4300 Switch
Disconnecting a Fiber-Optic Cable from a Switch
Removing a Transceiver from a Switch
Switch and Component Maintenance
Routine Maintenance
Maintaining Fiber-Optic Cables in Switches
Returning Hardware
Returning the Switch or Switch Components
Returning an EX4300 Switch or Component for Repair or Replacement
Locating the Serial Number on an EX4300 Switch or Component
Listing the Switch and Components Details with the CLI
Locating the Chassis Serial Number ID Label on an EX4300 Switch
Locating the Serial Number ID Labels on FRUs in an EX4300 Switch
Contacting Customer Support to Obtain Return Materials Authorization for Switches
Packing an EX4300 Switch or Component for Shipping
Packing an EX4300 Switch for Shipping
Packing EX4300 Switch Components for Shipping
Safety Information
General Safety Information
General Safety Guidelines and Warnings
Definitions of Safety Warning Levels
Fire Safety Requirements
Qualified Personnel Warning
Warning Statement for Norway and Sweden
Radiation and Laser Warnings
Laser and LED Safety Guidelines and Warnings for Switches
General Laser Safety Guidelines
Class 1 Laser Product Warning
Class 1 LED Product Warning
Laser Beam Warning
Radiation from Open Port Apertures Warning
Installation and Maintenance Safety Information
Installation Instructions Warning
Chassis Lifting Guidelines for EX4300 Switches
Ramp Warning
Rack-Mounting and Cabinet-Mounting Warnings
Wall-Mounting Warning for EX4300 Switches
Grounded Equipment Warning
Maintenance and Operational Safety Guidelines and Warnings
Battery Handling Warning
Jewelry Removal Warning
Lightning Activity Warning
Operating Temperature Warning
Product Disposal Warning
Power and Electrical Safety Information
General Electrical Safety Guidelines and Warnings
Prevention of Electrostatic Discharge Damage
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
Action to Take After an Electrical Accident
Compliance Information
Compliance Information
Agency Approvals for EX Series Switches
Compliance Statements for EMC Requirements for EX Series Switches
Canada
European Community
Israel
Japan
Korea
United States
FCC Part 15 Statement
Nonregulatory Environmental Standards
Compliance Statements for Acoustic Noise for EX Series Switches

Modified: 2015-06-23