Juniper EX4300 Instructions d'installation

EX4300 Switch Hardware Guide

Published

2022-11-30

Juniper Networks, Inc.

1133 Innovaon Way

Sunnyvale, California 94089

USA

408-745-2000

www.juniper.net

Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc.

in the United States and other countries. All other trademarks, service marks, registered marks, or registered service

marks are the property of their respecve owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right

to change, modify, transfer, or otherwise revise this publicaon without noce.

EX4300 Switch Hardware Guide

The informaon in this document is current as of the date on the tle page.

YEAR 2000 NOTICE

Juniper Networks hardware and soware products are Year 2000 compliant. Junos OS has no known me-related

limitaons through the year 2038. However, the NTP applicaon is known to have some diculty in the year 2036.

END USER LICENSE AGREEMENT

The Juniper Networks product that is the subject of this technical documentaon consists of (or is intended for use

with) Juniper Networks soware. Use of such soware is subject to the terms and condions of the End User License

Agreement ("EULA") posted at hps://support.juniper.net/support/eula/. By downloading, installing or using such

soware, you agree to the terms and condions of that EULA.

Table of Contents

About This Guide | x

Overview

EX4300 System Overview | 2

EX4300 Switches Hardware Overview | 2

EX4300 Switch Models | 29

Idenfying EX4300 Switch Models | 42

EX4300 Switch Hardware and CLI Terminology Mapping | 44

Chassis Physical Specicaons for EX4300 Switches | 50

Field-Replaceable Units in EX4300 Switches | 52

EX4300 Chassis | 53

LCD Panel in EX4300 Switches | 54

Uplink Modules in EX4300 Switches | 59

Chassis Status LEDs on EX4300 Switches | 69

Management Port LEDs on EX4300 Switches | 72

Network Port, Built-In QSFP+ Port, Uplink Port, and Uplink Module Port LEDs on EX4300

Switches | 74

Cooling System and Airow in an EX4300 Switch | 82

EX4300 Power System | 90

AC Power Supply in EX4300 Switches | 91

AC Power Supply Specicaons for EX4300 Switches | 103

AC Power Cord Specicaons for an EX4300 Switch | 105

AC Power Supply LEDs in EX4300 Switches | 111

DC Power Supply in EX4300 Switches | 112

DC Power Supply Specicaons for EX4300 Switches | 118

iii

DC Power Supply LEDs in EX4300 Switches | 119

Site Planning, Preparaon, and Specicaons

Site Preparaon Checklist for EX4300 Switches | 122

EX4300 Site Guidelines and Requirements | 124

Environmental Requirements and Specicaons for EX Series Switches | 124

General Site Guidelines | 131

Site Electrical Wiring Guidelines | 131

Rack Requirements | 132

Cabinet Requirements | 134

Clearance Requirements for Airow and Hardware Maintenance for EX4300 Switches | 135

EX4300 Network Cable and Transceiver Planning | 140

Pluggable Transceivers Supported on EX4300 Switches | 141

SFP+ Direct Aach Copper Cables for EX Series Switches | 142

QSFP+ Direct Aach Copper Cables for EX Series Switches | 144

Overview of EX Series Switches: Fiber-Opc Cable Signal Loss, Aenuaon, and Dispersion | 146

Calculate the Fiber-Opc Cable Power Budget for EX Series Devices | 148

Calculang the Fiber-Opc Cable Power Margin for EX Series Devices | 149

EX4300 Management Cable Specicaons and Pinouts | 151

Management Cable Specicaons | 151

Console Port Connector Pinout Informaon | 152

Mini-USB Port Pinout Specicaons | 153

USB Port Specicaons for an EX Series Switch | 154

RJ-45 Management Port Connector Pinout Informaon | 154

EX4300 RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout

Informaon | 155

RJ-45 to DB-9 Serial Port Adapter Pinout Informaon | 163

Inial Installaon and Conguraon

Unpacking and Mounng the EX4300 Switch | 166

Unpacking an EX4300 Switch | 166

Parts Inventory (Packing List) for an EX4300 Switch | 167

Installing and Connecng an EX4300 Switch | 170

Mounng an EX4300 Switch | 171

Mounng an EX4300 Switch on Two Posts of a Rack or Cabinet | 172

Mounng an EX4300 Switch on Four Posts of a Rack or Cabinet | 176

Mounng an EX4300 Switch in a Recessed Posion in a Rack or Cabinet | 179

Mounng an EX4300 Switch on a Wall | 180

Connecng the EX4300 to Power | 185

Connect Earth Ground to an EX Series Switch | 186

Connecng AC Power to an EX4300 Switch | 196

Connecng DC Power to an EX4300 Switch | 199

Connecng the EX4300 to External Devices | 205

Connect a Device to a Network for Out-of-Band Management | 205

Connect a Device to a Management Console Using an RJ-45 Connector | 206

Connect an EX Series Switch to a Management Console Using the Mini-USB Type-B Console

Port | 207

Connecng the EX4300 to the Network | 209

Install a Transceiver | 209

Connect a Fiber-Opc Cable | 212

Connecng QFX Series and EX Series Switches in a QFX Virtual Chassis | 213

Connecng QFX Series and EX Series Switches in a QFX Virtual Chassis | 214

Before You Start | 214

Valid Conguraons | 215

Cabling QFX3500 Switches in a QFX5100 Virtual Chassis | 217

Cabling QFX3600 Switches in a QFX Virtual Chassis | 219

Cabling a Mixed QFX Virtual Chassis | 219

Conguring Junos OS on the EX4300 | 223

EX4300 Default Conguraon | 223

Connecng and Conguring an EX Series Switch (CLI Procedure) | 241

Connecng and Conguring an EX Series Switch (J-Web Procedure) | 245

Conguring the LCD Panel on EX Series Switches (CLI Procedure) | 248

Disabling or Enabling Menus and Menu Opons on the LCD Panel | 249

Conguring a Custom Display Message | 250

Reverng to the Default Factory Conguraon for the EX Series Switch | 251

Reverng to the EX Series Switch Factory-Default Conguraon Using the request system

zeroize Command | 252

Reverng to the EX Series Switch Factory-Default Conguraon Using the load factory-

default Command | 253

Reverng to the Factory-Default Conguraon Using the EX Series Switch LCD Panel | 254

Reverng to the Factory-Default Conguraon Using the Factory Reset/Mode buon on

EX2300, EX3400, and EX4300-48MP Switches | 255

Dashboard for EX Series Switches | 256

Maintaining Components

Maintaining the EX4300 Cooling System | 292

Removing a Fan Module from an EX4300 Switch | 292

Installing a Fan Module in an EX4300 Switch | 293

Maintaining the EX4300 Power System | 295

Removing an AC Power Supply from an EX4300 Switch | 296

Installing an AC Power Supply in an EX4300 Switch | 298

Removing a DC Power Supply from an EX4300 Switch | 299

Installing a DC Power Supply in an EX4300 Switch | 301

Maintaining an Uplink Module in an EX4300 Switch | 303

Removing an Uplink Module from an EX4300 Switch | 304

Installing an Uplink Module in an EX4300 Switch | 306

Maintain Transceivers | 309

Remove a Transceiver | 309

Install a Transceiver | 312

Maintain Fiber-Opc Cables | 315

Connect a Fiber-Opc Cable | 315

Disconnect a Fiber-Opc Cable | 316

How to Handle Fiber-Opc Cables | 317

Troubleshoong Hardware

Troubleshoong the EX4300 Components | 320

Understand Alarm Types and Severity Levels on EX Series Switches | 320

Chassis Component Alarm Condions on EX4300 Switches | 322

Check Acve Alarms with the J-Web Interface | 325

Monitor System Log Messages | 326

Troubleshoong PoE Voltage Injecon Failure in EX2300, EX3400, or EX4300 Switch Models

with PoE Capability | 333

Troubleshoot Temperature Alarms in EX Series Switches | 334

Contacng Customer Support and Returning the Chassis or Components

Returning an EX4300 Chassis or Components | 342

Returning an EX4300 Switch or Component for Repair or Replacement | 342

Locang the Serial Number on an EX4300 Switch or Component | 343

Lisng the Switch and Components Details with the CLI | 343

Locang the Chassis Serial Number ID Label on an EX4300 Switch | 344

Locang the Serial Number ID Labels on FRUs in an EX4300 Switch | 346

Contact Customer Support to Obtain a Return Material Authorizaon | 353

Packing an EX4300 Switch or Component for Shipping | 354

Packing an EX4300 Switch for Shipping | 354

Packing EX4300 Switch Components for Shipping | 356

Safety and Compliance Informaon

vii

General Safety Guidelines and Warnings | 359

Denions of Safety Warning Levels | 360

Qualied Personnel Warning | 362

Warning Statement for Norway and Sweden | 362

Fire Safety Requirements | 363

Installaon Instrucons Warning | 364

Chassis and Component Liing Guidelines | 365

Restricted Access Warning | 365

Ramp Warning | 367

Rack-Mounng and Cabinet-Mounng Warnings | 367

Wall-Mounng Warning for EX4300 Switches | 371

Grounded Equipment Warning | 372

Radiaon from Open Port Apertures Warning | 372

Laser and LED Safety Guidelines and Warnings | 373

Maintenance and Operaonal Safety Guidelines and Warnings | 376

General Electrical Safety Guidelines and Warnings | 382

Acon to Take Aer an Electrical Accident | 384

Prevenon of Electrostac Discharge Damage | 384

AC Power Electrical Safety Guidelines | 386

AC Power Disconnecon Warning | 387

DC Power Electrical Safety Guidelines for EX4300 Switches | 388

DC Power Disconnecon Warning | 389

DC Power Grounding Requirements and Warning | 390

DC Power Wiring Sequence Warning | 391

DC Power Wiring Terminaons Warning | 393

viii

Mulple Power Supplies Disconnecon Warning | 394

TN Power Warning | 395

Agency Approvals for EX Series Switches | 396

Compliance Statements for EMC Requirements for EX Series Switches | 397

Compliance Statements for Acousc Noise for EX Series Switches | 401

Statements of Volality for Juniper Network Devices | 401

About This Guide

Use this guide to install hardware and perform inial soware conguraon, roune maintenance, and

troubleshoong for the EX4300 switch. Aer compleng the installaon and basic conguraon

procedures covered in this guide, refer to the Junos OS documentaon for informaon about further

soware conguraon.

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