Juniper EX2300 Series Istruzioni per l'installazione

EX2300 Switch Hardware Guide

Published

2022-02-14

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.

EX2300 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 | ix

Overview

EX2300 System Overview | 2

EX2300 Switches Hardware Overview | 2

EX2300 Switch Models | 15

EX2300 Switch Hardware and CLI Terminology Mapping | 18

Chassis Physical Specicaons for EX2300 Switches | 23

EX2300 Chassis | 25

Chassis Status LEDs in EX2300 Switches | 26

Management Port LEDs in EX2300 Switches | 30

RJ-45 Network Port LEDs and Uplink Port LEDs in EX2300 Switches | 34

EX2300 Cooling System | 40

EX2300 Power System | 46

Power Supply in EX2300 Switches | 46

Power Specicaons for EX2300 Switches | 47

AC Power Cord Specicaons for EX2300 Switches | 49

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

Site Preparaon Checklist for EX2300 Switches | 53

EX2300 Site Guidelines and Requirements | 55

Environmental Requirements and Specicaons for EX Series Switches | 55

General Site Guidelines | 62

Site Electrical Wiring Guidelines | 62

Rack Requirements | 63

Cabinet Requirements | 65

iii

Requirements for Mounng an EX2300 Switch On or Under a Desk or Other Level Surface or

On a Wall | 66

Clearance Requirements for Airow and Hardware Maintenance for EX2300 Switches | 67

EX2300 Network Cable and Transceiver Planning | 75

Pluggable Transceivers Supported on EX2300 Switches | 75

SFP+ Direct Aach Copper Cables for EX Series Switches | 77

Understanding EX Series Switches Fiber-Opc Cable Signal Loss, Aenuaon, and Dispersion | 79

Calculang the Fiber-Opc Cable Power Budget for EX Series Devices | 81

Calculang the Fiber-Opc Cable Power Margin for EX Series Devices | 81

EX2300 Management Cable Specicaons and Pinouts | 83

Management Cable Specicaons | 84

Console Port Connector Pinout Informaon | 84

USB Port Specicaons for an EX Series Switch | 85

Mini-USB Port Pinout Specicaons | 86

RJ-45 Management Port Connector Pinout Informaon | 87

RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout Informaon | 87

SFP+ Uplink Port Connector Pinout Informaon for an EX2300 Switch | 94

RJ-45 Management Port Connector Pinout Informaon | 96

RJ-45 to DB-9 Serial Port Adapter Pinout Informaon | 96

EX2300 Virtual Chassis | 97

Planning EX2300 Virtual Chassis | 98

Understanding EX2300 Virtual Chassis Hardware Conguraon | 98

Inial Installaon and Conguraon

Unpacking and Mounng the EX2300 Switch | 101

Unpacking an EX2300 Switch | 101

Parts Inventory (Packing List) for an EX2300 Switch | 102

Installing and Connecng an EX2300 Switch | 104

Mounng an EX2300 Switch | 105

Mounng an EX2300 Switch on a Desk or Other Level Surface | 106

Mounng an EX2300-C Switch Under a Desk or Other Level Surface by Using Screws | 108

Mounng an EX2300 Switch on Two Posts of a Rack or Cabinet | 113

Mounng an EX2300 Switch on Four Posts of a Rack or Cabinet | 116

Mounng an EX2300 Switch on a Wall | 119

Mounng an EX2300-C Switch on a Wall | 119

Mounng an EX2300 Switch Except the EX2300-C Switch and the EX2300-24MP and

EX2300-48MP Models on a Wall | 124

Mounng an EX2300-C Switch on or Under a Surface Made of Ferrous Material | 127

Mounng an EX2300 Switch in a Recessed Posion in a Rack or Cabinet | 132

Connecng the EX2300 to Power | 132

Connect Earth Ground to an EX Series Switch | 132

Connecng AC Power to an EX2300 Switch | 141

Connecng DC Power to an EX2300 Switch | 144

Connecng the EX2300 to External Devices | 147

Connect a Device to a Network for Out-of-Band Management | 147

Connect a Device to a Management Console Using an RJ-45 Connector | 148

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

Port | 149

Connecng the EX2300 to the Network | 151

Install a Transceiver | 151

Connect a Fiber-Opc Cable | 154

Conguring Junos OS on the EX2300 | 155

EX2300 Switch Default Conguraon | 156

Connecng and Conguring an EX Series Switch (CLI Procedure) | 171

Connecng and Conguring an EX Series Switch (J-Web Procedure) | 175

Reverng to the Default Factory Conguraon for the EX Series Switch | 179

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

zeroize Command | 180

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

default Command | 180

Reverng to the Factory-Default Conguraon Using the EX Series Switch LCD Panel | 182

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

EX2300, EX3400, and EX4300-48MP Switches | 182

Dashboard for EX Series Switches | 184

Maintaining Components

Maintain Transceivers | 217

Remove a Transceiver | 217

Remove a QSFP28 Transceiver | 219

Install a Transceiver | 221

Install a QSFP28 Transceiver | 224

Maintain Fiber-Opc Cables | 226

Connect a Fiber-Opc Cable | 226

Disconnect a Fiber-Opc Cable | 227

How to Handle Fiber-Opc Cables | 228

Troubleshoong Hardware

Troubleshoong EX2300 Components | 231

Understand Alarm Types and Severity Levels on EX Series Switches | 231

Chassis Component Alarm Condions on EX2300 Switches | 233

Check Acve Alarms with the J-Web Interface | 235

Monitor System Log Messages | 236

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

with PoE Capability | 243

Troubleshoong Storage Issues While Upgrading Junos OS in EX2300 and EX3400 Switches | 244

Troubleshoot Temperature Alarms in EX Series Switches | 246

Contacng Customer Support and Returning the Chassis or Components

Returning an EX2300 Switch or Component for Repair or Replacement | 254

Locang the Serial Number on an EX2300 Switch or Component | 255

Lisng the Switch and Components Details with the CLI | 255

Locang the Chassis Serial Number ID Label on an EX2300 Switch | 257

Contact Customer Support to Obtain Return Material Authorizaon | 257

Packing an EX2300 Switch or Component for Shipping | 258

Packing a Switch for Shipping | 259

Packing Switch Components for Shipping | 259

Safety and Compliance Informaon

General Safety Guidelines and Warnings | 263

Denions of Safety Warning Levels | 264

Qualied Personnel Warning | 266

Warning Statement for Norway and Sweden | 266

Fire Safety Requirements | 267

Installaon Instrucons Warning | 268

Chassis and Component Liing Guidelines | 269

Restricted Access Warning | 269

Ramp Warning | 271

Rack-Mounng and Cabinet-Mounng Warnings | 271

Grounded Equipment Warning | 275

Laser and LED Safety Guidelines and Warnings | 276

Radiaon from Open Port Apertures Warning | 279

Maintenance and Operaonal Safety Guidelines and Warnings | 280

General Electrical Safety Guidelines and Warnings | 286

vii

Acon to Take Aer an Electrical Accident | 287

Prevenon of Electrostac Discharge Damage | 288

AC Power Electrical Safety Guidelines | 289

AC Power Disconnecon Warning | 290

DC Power Electrical Safety Guidelines | 291

DC Power Disconnecon Warning | 292

DC Power Grounding Requirements and Warning | 294

DC Power Wiring Sequence Warning | 294

DC Power Wiring Terminaons Warning | 296

Mulple Power Supplies Disconnecon Warning | 297

TN Power Warning | 298

Agency Approvals for EX Series Switches | 299

Compliance Statements for EMC Requirements for EX Series Switches | 300

Compliance Statements for Acousc Noise for EX Series Switches | 305

viii

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 EX2300 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.

CHAPTER

Overview

EX2300 System Overview | 2

EX2300 Chassis | 25

EX2300 Cooling System | 40

EX2300 Power System | 46

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