Juniper EX4300 Installation instructions

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
Copyright © 2022 Juniper Networks, Inc. All rights reserved.
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.
ii

Table of Contents
About This Guide | x
1
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
2
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
3
Inial Installaon and Conguraon
iv

Unpacking and Mounng the EX4300 Switch | 166
Unpacking an EX4300 Switch | 166
Parts Inventory (Packing List) for an EX4300 Switch | 167
Register Products—Mandatory to Validate SLAs | 169
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
v

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
4
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
vi

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
5
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
6
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
7
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
ix

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.
x