Juniper EX4300 Installation instructions

EX4300 Switch Hardware Guide
Modified: 2015-06-29
Copyright © 2015, Juniper Networks, Inc.

Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Copyright © 2015, Juniper Networks, Inc. All rights reserved.
Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United
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Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify,
transfer, or otherwise revise this publication without notice.
EX4300 Switch Hardware Guide
Copyright © 2015, Juniper Networks, Inc.
All rights reserved.
The information in this document is current as of the date on the title page.
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the
year 2038. However, the NTP application is known to have some difficulty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks
software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at
http://www.juniper.net/support/eula.html. By downloading, installing or using such software, you agree to the terms and conditions of
that EULA.
Copyright © 2015, Juniper Networks, Inc.ii

Table of Contents
AbouttheDocumentation...........................................xvii
Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
SupportedPlatforms............................................xvii
Documentation Conventions .....................................xvii
DocumentationFeedback........................................xix
RequestingTechnicalSupport.....................................xx
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
OpeningaCasewithJTAC.....................................xx
Part 1 Overview
Chapter1 SystemOverview...................................................3
EX4300SwitchesHardwareOverview...................................3
Software .......................................................4
EX4300SwitchesFirstView.......................................4
24-PortEX4300Switches.....................................4
32-PortEX4300Switches......................................6
48-PortEX4300Switches.....................................7
UplinkModules..................................................9
VirtualChassis..................................................10
PowerSupplies..................................................11
FanModules....................................................12
EX4300SwitchComponents......................................13
EX4300SwitchModels..............................................15
IdentifyingEX4300SwitchModels.....................................19
EX4300 Switch Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . . . . . . 20
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Chassis Physical Specifications for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . 23
Field-Replaceable Units in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
LCDPanelinEX4300Switches........................................25
LCDPanelModes...............................................26
LCDPanelMenus...............................................27
UplinkModulesinEX4300Switches...................................29
Chassis Status LEDs on EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Management Port LEDs on EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Network Port, Built-In QSFP+ Port, Uplink Port, and Uplink Module Port LEDs
onEX4300Switches............................................36
iiiCopyright © 2015, Juniper Networks, Inc.

Chapter3 CoolingSystemandAirflow.........................................41
Cooling System and Airflow in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . 41
FanModules....................................................41
Airflow Direction in EX4300 Switch Models . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Front-to-BackAirflow............................................43
Back-to-FrontAirflow............................................44
Do Not Mix AIR IN (AFI) and AIR OUT (AFO) Components in the Switch . . . 45
PositioningtheSwitch...........................................45
FanModuleStatus..............................................46
Chapter4 Power Supplies ...................................................47
ACPowerSupplyinEX4300Switches..................................47
Characteristics of an AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
ACPowerSupplyAirflow.........................................49
N+0 Redundancy Configuration of AC Power Supplies . . . . . . . . . . . . . . . . . 50
N+N Redundancy Configuration of AC Power Supplies . . . . . . . . . . . . . . . . . . 51
AC Power Supply LEDs in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
DCPowerSupplyinEX4300Switches..................................55
Characteristics of a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
DCPowerSupplyAirflow.........................................57
N+0 Redundancy Configuration of DC Power Supplies . . . . . . . . . . . . . . . . . 57
N+N Redundancy Configuration of DC Power Supplies . . . . . . . . . . . . . . . . . 58
DC Power Supply LEDs in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Chapter5 ViewingSystemInformation........................................61
DashboardforEXSeriesSwitches......................................61
GraphicalChassisViewer.........................................62
SystemInformationPanel........................................63
HealthStatusPanel.............................................65
CapacityUtilizationPanel.........................................67
AlarmsPanel...................................................67
FileSystemUsage..............................................68
ChassisViewer.................................................68
Part 2 Site Planning, Preparation, and Specifications
Chapter6 Preparation Overview .............................................83
Site Preparation Checklist for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Environmental Requirements and Specifications for EX Series Switches . . . . . . 84
GeneralSiteGuidelines..............................................88
SiteElectricalWiringGuidelines.......................................89
Rack Requirements for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Cabinet Requirements for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Clearance Requirements for Airflow and Hardware Maintenance for EX4300
Switches ......................................................93
Chapter 7 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
AC Power Supply Specifications for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . 97
AC Power Cord Specifications for an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . 98
Copyright © 2015, Juniper Networks, Inc.iv
EX4300 Switch Hardware Guide

DC Power Supply Specifications for EX4300 Switches . . . . . . . . . . . . . . . . . . . . 102
Calculating the EX Series Switch Fiber-Optic Cable Power Budget . . . . . . . . . . . 102
Calculating the EX Series Switch Fiber-Optic Cable Power Margin . . . . . . . . . . . 103
Chapter 8 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Pluggable Transceivers Supported on EX4300 Switches . . . . . . . . . . . . . . . . . . . 107
SFP+ Direct Attach Cables for EX Series Switches . . . . . . . . . . . . . . . . . . . . . . . . 128
CableSpecifications............................................128
Standards Supported by These Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
QSFP+ Direct Attach Cables for EX Series Switches . . . . . . . . . . . . . . . . . . . . . . . 132
CableSpecifications............................................133
Network Cable Specifications for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . 136
Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation,
andDispersion.................................................137
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . . . . . . 137
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 138
Chapter9 PinoutSpecifications.............................................139
Console Port Connector Pinout Information for an EX Series Switch . . . . . . . . . . 139
Mini-USB Port Specifications for an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . 140
USB Port Specifications for an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Management Port Connector Pinout Information for an EX4300 Switch . . . . . . 142
Network Port, QSFP+ Port, SFP Port, and SFP+ Port Connector Pinout
InformationforEX4300Switches.................................143
RJ-45 to DB-9 Serial Port Adapter Pinout Information for a Switch . . . . . . . . . . 148
Part 3 Initial Installation and Configuration
Chapter10 UnpackingtheSwitch.............................................151
UnpackinganEX4300Switch........................................151
Parts Inventory (Packing List) for an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . 152
Registering Products—Mandatory for Validating SLAs . . . . . . . . . . . . . . . . . . . . . 153
Chapter11 InstallingtheSwitch..............................................155
Installing and Connecting an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
MountinganEX4300Switch.........................................156
Mounting an EX4300 Switch on Two Posts of a Rack or Cabinet . . . . . . . . . . . . 157
Mounting an EX4300 Switch on Four Posts of a Rack or Cabinet . . . . . . . . . . . . 159
Mounting an EX4300 Switch in a Recessed Position in a Rack or Cabinet . . . . . 163
MountinganEX4300SwitchonaWall.................................163
Installing and Removing EX4300 Switch Hardware Components . . . . . . . . . . . . 165
Chapter 12 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Connecting Earth Ground to an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . . . . 167
Parts and Tools Required for Connecting an EX Series Switch to Earth
Ground ...................................................167
Special Instructions to Follow Before Connecting Earth Ground to a
Switch....................................................170
Connecting Earth Ground to an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . 172
Connecting AC Power to an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Connecting DC Power to an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
vCopyright © 2015, Juniper Networks, Inc.
Table of Contents

Chapter 13 Connecting the Switch to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Connecting a Switch to a Network for Out-of-Band Management . . . . . . . . . . . . 181
Connecting a Switch to a Management Console . . . . . . . . . . . . . . . . . . . . . . . . . 183
Connecting an EX4300 Switch to a Management Console Using the Mini-USB
Type-BConsolePort............................................185
Connecting a Fiber-Optic Cable to a Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Connecting EX Series Switches in a Virtual Chassis Fabric . . . . . . . . . . . . . . . . . . 187
Connecting QFX Series and EX Series Switches in a QFX Virtual Chassis . . . . . . 189
BeforeYouStart...............................................190
ValidConfigurations............................................190
Cabling QFX3500 Switches in a QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . 191
Cabling QFX3600 Switches in a QFX Virtual Chassis . . . . . . . . . . . . . . . . . . 192
Cabling a Mixed QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Chapter 14 Performing Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
EX4300DefaultConfiguration........................................197
Connecting and Configuring an EX Series Switch (CLI Procedure) . . . . . . . . . . . 205
Connecting and Configuring an EX Series Switch (J-Web Procedure) . . . . . . . . 208
Configuring the LCD Panel on EX Series Switches (CLI Procedure) . . . . . . . . . . . 211
Disabling or Enabling Menus and Menu Options on the LCD Panel . . . . . . . . 212
Configuring a Custom Display Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Part 4 Installing, Maintaining, and Replacing Components
Chapter 15 Replacing Cooling System Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Installing a Fan Module in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Removing a Fan Module from an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . 219
Chapter16 ReplacingPowerSupply...........................................221
Installing an AC Power Supply in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . 221
Removing an AC Power Supply from an EX4300 Switch . . . . . . . . . . . . . . . . . . . 223
Installing a DC Power Supply in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . 224
Removing a DC Power Supply from an EX4300 Switch . . . . . . . . . . . . . . . . . . . . 226
Chapter17 Replacing UplinkModule.........................................229
Installing an Uplink Module in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . 229
Removing an Uplink Module from an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . 231
Chapter18 Replacing Transceiver ............................................235
Installing a Transceiver in an EX Series Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Removing a Transceiver from a Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Chapter 19 Maintaining and Replacing Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . . . 241
Connecting a Fiber-Optic Cable to a Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Disconnecting a Fiber-Optic Cable from a Switch . . . . . . . . . . . . . . . . . . . . . . . . 242
Maintaining Fiber-Optic Cables in Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Copyright © 2015, Juniper Networks, Inc.vi
EX4300 Switch Hardware Guide

Chapter 20 Contacting Customer Support and Returning the Chassis or
Components ....................................................245
Returning an EX4300 Switch or Component for Repair or Replacement . . . . . . 245
Locating the Serial Number on an EX4300 Switch or Component . . . . . . . . . . . 246
Listing the Switch and Components Details with the CLI . . . . . . . . . . . . . . . 246
Locating the Chassis Serial Number ID Label on an EX4300 Switch . . . . . . 247
Locating the Serial Number ID Labels on FRUs in an EX4300 Switch . . . . . 247
Contacting Customer Support to Obtain Return Materials Authorization for
Switches .....................................................250
Packing an EX4300 Switch or Component for Shipping . . . . . . . . . . . . . . . . . . . 252
Packing an EX4300 Switch for Shipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Packing EX4300 Switch Components for Shipping . . . . . . . . . . . . . . . . . . . 253
Part 5 Troubleshooting
Chapter21 AlarmsandSyslogMessages......................................257
Understanding Alarm Types and Severity Levels on EX Series Switches . . . . . . . 257
Checking Active Alarms with the J-Web Interface . . . . . . . . . . . . . . . . . . . . . . . . 258
MonitoringSystemLogMessages.....................................259
Part 6 Safety and Compliance Information
Chapter 22 General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Definitions of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
QualifiedPersonnelWarning.........................................268
Warning Statement for Norway and Sweden . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Chapter23 FireSafetyRequirements..........................................271
FireSafetyRequirements............................................271
Chapter 24 Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 273
InstallationInstructionsWarning......................................273
Chassis Lifting Guidelines for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . 275
RestrictedAccessWarning..........................................276
Ramp Warning ....................................................277
Rack-Mounting and Cabinet-Mounting Warnings . . . . . . . . . . . . . . . . . . . . . . . . 278
Wall-Mounting Warning for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
GroundedEquipmentWarning.......................................282
Chapter 25 Radiation and Laser Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . 285
Laser and LED Safety Guidelines and Warnings for Switches . . . . . . . . . . . . . . . 285
GeneralLaserSafetyGuidelines..................................285
Class1LaserProductWarning....................................286
Class1LEDProductWarning.....................................286
LaserBeamWarning............................................287
Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
viiCopyright © 2015, Juniper Networks, Inc.
Table of Contents

Chapter 26 Maintenance and Operational Safety Warnings . . . . . . . . . . . . . . . . . . . . . . 291
Maintenance and Operational Safety Guidelines and Warnings . . . . . . . . . . . . . 291
BatteryHandlingWarning........................................291
JewelryRemovalWarning........................................292
LightningActivityWarning.......................................293
OperatingTemperatureWarning..................................294
ProductDisposalWarning.......................................295
Chapter 27 Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . 297
General Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . 297
Action to Take After an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Prevention of Electrostatic Discharge Damage . . . . . . . . . . . . . . . . . . . . . . . . . . 299
AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
ACPowerDisconnectionWarning.....................................303
DC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
DCPowerDisconnectionWarning....................................306
DC Power Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . 307
DCPowerWiringSequenceWarning..................................308
DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . 312
TNPowerWarning.................................................312
Chapter 28 Agency Approvals and Compliance Statements . . . . . . . . . . . . . . . . . . . . . . 315
Agency Approvals for EX Series Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Compliance Statements for EMC Requirements for EX Series Switches . . . . . . . 316
Canada.......................................................316
EuropeanCommunity...........................................317
Israel.........................................................317
Japan ........................................................317
Korea ........................................................318
UnitedStates..................................................318
FCCPart15Statement..........................................318
Nonregulatory Environmental Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Compliance Statements for Acoustic Noise for EX Series Switches . . . . . . . . . . 320
Copyright © 2015, Juniper Networks, Inc.viii
EX4300 Switch Hardware Guide

List of Figures
Part 1 Overview
Chapter1 SystemOverview...................................................3
Figure 1: Front Panel of a 24-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2: Rear Panel of a 24-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3: Front Panel of a 32-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4: Rear Panel of a 32-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 5: Front Panel of a 48-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6: Rear Panel of a 48-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 7: Components on the Front Panel of a 24-Port EX4300 Switch . . . . . . . . 13
Figure 8: Components on the Front Panel of a 32-Port EX4300 Switch . . . . . . . . 13
Figure 9: Components on the Front Panel of a 48-Port EX4300 Switch . . . . . . . . 14
Figure 10: Components on the Rear Panel of a 24-Port and 48-Port EX4300
Switch ........................................................14
Figure 11: Components on the Rear Panel of a 32-Port EX4300 Switch . . . . . . . . . 15
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 12: LCD Panel in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 13: 4-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . . . . . . . . . . . . 31
Figure 14: LEDs on the 4-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . 31
Figure 15: 2-Port 40-Gigabit Ethernet QSFP+ Uplink Module . . . . . . . . . . . . . . . . 32
Figure 16: LEDs on the 2-Port 40-Gigabit Ethernet QSFP+ Uplink Module . . . . . . 32
Figure 17: 8-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . . . . . . . . . . . 33
Figure 18: LEDs on the 8-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . 33
Figure 19: Chassis Status LEDs in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 20: LEDs on the Management Port on a 24-port EX4300 Switch . . . . . . . 35
Figure 21: LEDs on 10/100/1000BASE-T Network Ports . . . . . . . . . . . . . . . . . . . . . 37
Figure22:LEDsonSFPNetworkPorts..................................37
Figure 23: LEDs on the Built-In QSFP+ Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 24: LEDs on the SFP+ Uplink Ports and on the SFP+ Uplink Module Ports
onthe4-PortSFP+UplinkModule..................................37
Figure 25: LEDs on the QSFP+ Uplink Module Ports . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 26: LEDs on the SFP+ Ports on the 8-Port SFP+ Uplink Module . . . . . . . . 38
Chapter3 CoolingSystemandAirflow.........................................41
Figure 27: Fan Module Used in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 28: Front-to-Back Airflow Through 24-Port and 48-Port EX4300 Switch
Chassis .......................................................44
Figure 29: Front-to-Back Airflow Through 32-Port EX4300 Switch Chassis . . . . 44
Figure 30: Back-to-Front Airflow Through the 24-Port and 48-Port EX4300
SwitchChassis.................................................45
ixCopyright © 2015, Juniper Networks, Inc.

Chapter4 Power Supplies ...................................................47
Figure 31: AC Power Supply for an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 32: AC Power Supply LEDs in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . 54
Figure 33: DC Power Supply for an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 34: DC Power Supply Faceplate on an EX4300 Switch . . . . . . . . . . . . . . . 60
Part 2 Site Planning, Preparation, and Specifications
Chapter6 Preparation Overview .............................................83
Figure 35: Front-to-Back Airflow on 24-Port and 48-Port EX4300 Switches . . . 94
Figure 36: Front-to-Back Airflow on 32-Port EX4300 Switches . . . . . . . . . . . . . . 94
Figure 37: Back-to-Front Airflow on 24-Port and 48-Port EX4300 Switches . . . . 94
Figure 38: Clearance Requirements for Airflow and Hardware Maintenance for
anEX4300SwitchChassis.......................................95
Chapter 8 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Figure 39: SFP+ Direct Attach Cables for EX Series Switches . . . . . . . . . . . . . . . 128
Figure 40: QSFP+ Direct Attach Cables for EX Series Switches . . . . . . . . . . . . . . 133
Chapter9 PinoutSpecifications.............................................139
Figure 41: Location of the Mini-USB Type-B Console Port on the Front Panel of
anEX4300Switch..............................................141
Part 3 Initial Installation and Configuration
Chapter11 InstallingtheSwitch..............................................155
Figure 42: Attaching the Mounting Bracket to the Side Panel of the Switch . . . . 158
Figure 43: Mounting the Switch on Two Posts of a Rack . . . . . . . . . . . . . . . . . . . 159
Figure 44: Attaching the Side Mounting-Rail to the Switch Chassis . . . . . . . . . . . 161
Figure 45: Mounting the Switch on Front Posts of a Rack . . . . . . . . . . . . . . . . . . . 162
Figure 46: Sliding the Rear Mounting-Blades into the Side Mounting-Rails . . . . 162
Figure 47: Attaching Wall-Mount Brackets to the Switch Chassis . . . . . . . . . . . . 164
Figure 48: Mounting the Switch on a Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Chapter 12 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Figure 49: Connecting the Grounding Lug to a Switch Mounted on Four Posts of
aRack........................................................171
Figure 50: Connecting a Grounding Cable to an EX Series Switch . . . . . . . . . . . . 172
Figure 51: Connecting an AC Power Cord to an AC Power Supply in an EX4300
Switch........................................................175
Figure 52: Securing Ring Lugs to the Terminals on the DC Power Supply . . . . . . . 179
Chapter 13 Connecting the Switch to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Figure53:EthernetCableConnector...................................181
Figure 54: Connecting a Switch to a Network for Out-of-Band Management . . . 182
Figure55:EthernetCableConnector...................................183
Figure 56: Connecting a Switch to a Management Console Through a Console
Server........................................................184
Figure 57: Connecting a Switch Directly to a Management Console . . . . . . . . . . 184
Figure 58: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed
inaSwitch....................................................187
Copyright © 2015, Juniper Networks, Inc.x
EX4300 Switch Hardware Guide

Figure 59: Mixed Mode VCF with a EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . 189
Figure 60: QFX3500 Using the 40G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . . 191
Figure 61: QFX3500 Using the 10G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . . 192
Figure 62: QFX3600 Using the 40G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . 193
Figure 63: QFX3500 and QFX3600 Mixed Using the 40G Ports as the VCPs . . . 193
Figure 64: QFX3500 and QFX3600 Mixed Using Both 40G Ports and 10G Ports
astheVCPs...................................................194
Figure 65: QFX5100 Master Connecting QFX3600 and QFX3500 Using 40G
PortsasVCPs.................................................194
Chapter 14 Performing Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Figure 66: LCD Panel in an EX3200, EX4200, EX4500, EX4550, or EX8200
Switch.......................................................209
Figure 67: LCD Panel in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Part 4 Installing, Maintaining, and Replacing Components
Chapter 15 Replacing Cooling System Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Figure 68: Installing a Fan Module in a 24-Port EX4300 Switch . . . . . . . . . . . . . 218
Figure 69: Removing a Fan Module from an EX4300 Switch . . . . . . . . . . . . . . . . 219
Chapter16 ReplacingPowerSupply...........................................221
Figure 70: Installing an AC Power Supply in an EX4300 Switch . . . . . . . . . . . . . . 222
Figure 71: Removing an AC Power Supply from an EX4300 Switch . . . . . . . . . . . 224
Figure 72: Installing a DC Power Supply in an EX4300 Switch . . . . . . . . . . . . . . . 226
Figure 73: Removing a DC Power Supply from an EX4300 Switch . . . . . . . . . . . . 227
Chapter17 Replacing UplinkModule.........................................229
Figure 74: Installing a 4-Port SFP+ Uplink Module in a 24-Port or 48-Port EX4300
Switch .......................................................230
Figure 75: Installing a 2-Port QSFP+ Uplink Module in a 32-Port EX4300
Switch .......................................................230
Figure 76: Installing an 8-Port SFP+ Uplink Module in a 32-Port EX4300
Switch........................................................231
Figure 77: Removing a 4-Port SFP+ Uplink Module from a 24-Port or 48-Port
EX4300Switch................................................232
Figure 78: Removing a 2-Port QSFP+ Uplink Module from a 32-Port EX4300
Switch .......................................................232
Figure 79: Removing an 8-Port SFP+ Uplink Module from a 32-Port EX4300
Switch .......................................................233
Chapter18 Replacing Transceiver ............................................235
Figure 80: Installing a Transceiver in an EX Series Switch . . . . . . . . . . . . . . . . . . 237
Figure 81: Removing a Transceiver from a Switch . . . . . . . . . . . . . . . . . . . . . . . . . 239
Chapter 19 Maintaining and Replacing Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . . . 241
Figure 82: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in
aSwitch......................................................242
Chapter 20 Contacting Customer Support and Returning the Chassis or
Components ....................................................245
xiCopyright © 2015, Juniper Networks, Inc.
List of Figures

Figure 83: Location of the Serial Number ID Label on 24-Port and 48-Port
EX4300Switches..............................................247
Figure 84: Location of the Serial Number ID Label on 32-Port EX4300
Switches .....................................................247
Figure 85: Location of the Serial Number ID Label on an AC Power Supply Used
inanEX4300Switch...........................................248
Figure 86: Location of the Serial Number ID Label on a DC Power Supply Used
inanEX4300Switch...........................................248
Figure 87: Location of the Serial Number ID Label on the Fan Module Used in an
EX4300Switch................................................248
Figure 88: Location of the Serial Number ID Label on the QSFP+ Uplink
Module ......................................................249
Figure 89: Location of the Serial Number ID Label on the 4-Port SFP+ Uplink
Module ......................................................249
Figure 90: Location of the Serial Number ID Label on the 8-Port SFP+ Uplink
Module ......................................................249
Part 6 Safety and Compliance Information
Chapter 27 Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Figure 91: Placing a Component into an Antistatic Bag . . . . . . . . . . . . . . . . . . . . 300
Copyright © 2015, Juniper Networks, Inc.xii
EX4300 Switch Hardware Guide

List of Tables
AbouttheDocumentation.........................................xvii
Table1:NoticeIcons................................................xviii
Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Part 1 Overview
Chapter1 SystemOverview...................................................3
Table 3: Components in 24-Port EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 4: Components in 32-Port EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 5: Components in 48-Port EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6: Uplink Modules in 24-Port and 48-Port EX4300 Switches . . . . . . . . . . . 10
Table 7: Uplink Modules in 32-Port EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . 10
Table 8: Airflow Direction in Power Supply for EX4300 Switches . . . . . . . . . . . . . . 11
Table 9: EX4300 Switch Models, Shipped Components, and Supported Junos
OSRelease.....................................................15
Table 10: CLI Equivalents of Terms Used in the Documentation for EX4300
Switches ......................................................20
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 11: Physical Specifications of the EX4300 Switch Chassis . . . . . . . . . . . . . . 23
Table 12: LCD Panel Menu Options in EX4300 Switches . . . . . . . . . . . . . . . . . . . . 28
Table 13: Uplink Modules in 24-Port and 48-Port EX4300 Switches . . . . . . . . . . 30
Table 14: Uplink Modules in 32-Port EX4300 Switches . . . . . . . . . . . . . . . . . . . . . 30
Table 15: Uplink Modules Used in 24-Port and 48-Port EX4300 Switches . . . . . . 31
Table 16: Uplink Modules Used in 32-Port EX4300 Switches . . . . . . . . . . . . . . . . 32
Table 17: Chassis Status LEDs on an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . 34
Table 18: Link/Activity LED on the Management Port on an EX4300 Switch . . . . 36
Table 19: Status LED on the Management Port on an EX4300 Switch . . . . . . . . . 36
Table20:Link/ActivityLED...........................................38
Table 21: Status LED on 10/100/1000BASE-T Ethernet Network Ports and SFP
NetworkPorts..................................................39
Table 22: Status LED on SFP+ Uplink Ports and SFP+ Uplink Module Ports . . . . 39
Table23:StatusLEDonQSFP+Ports..................................39
Chapter3 CoolingSystemandAirflow.........................................41
Table 24: Fan Modules in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 25: Airflow Direction in EX4300 Switch Models . . . . . . . . . . . . . . . . . . . . . . 43
Table26:FanModuleStatusLED......................................46
Chapter4 Power Supplies ...................................................47
Table 27: Details of the AC Power Supplies in EX4300 Switches . . . . . . . . . . . . . 48
Table 28: Airflow Direction in AC Power Supply Models for EX4300 Switches . . . 49
xiiiCopyright © 2015, Juniper Networks, Inc.

Table 29: N+0 AC Power Calculations for 24-Port EX4300 Switches . . . . . . . . . . 50
Table 30: N+0 AC Power Calculations for 32-Port EX4300 Switches . . . . . . . . . . 51
Table 31: N+0 AC Power Calculations for 48-Port EX4300 Switches . . . . . . . . . . 51
Table 32: N+N AC Power Calculations for 24-Port EX4300 Switches . . . . . . . . . . 52
Table 33: N+N AC Power Calculations for 32-Port EX4300 Switches . . . . . . . . . . 53
Table 34: N+N AC Power Calculations for 48-Port EX4300 Switches . . . . . . . . . 53
Table 35: AC Power Supply LEDs in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . 54
Table 36: Details of the DC Power Supplies in EX4300 Switches . . . . . . . . . . . . . 56
Table 37: Airflow Direction in DC Power Supply Models for EX4300 Switches . . . 57
Table 38: N+0 DC Power Calculations for EX4300 Switch Configurations . . . . . . 58
Table 39: N+N DC Power Calculations for EX4300 Switch Configurations . . . . . . 59
Table 40: DC Power Supply LEDs on an EX4300 Switch . . . . . . . . . . . . . . . . . . . 60
Chapter5 ViewingSystemInformation........................................61
Table 41: Details of a Virtual Chassis Member Switch . . . . . . . . . . . . . . . . . . . . . . 62
Table 42: Status of a Member Switch in a Virtual Chassis . . . . . . . . . . . . . . . . . . . 62
Table43:SystemInformation.........................................63
Table44:HealthStatus..............................................65
Table45:CapacityUtilization.........................................67
Table 46: Chassis Viewer for EX2200 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table 47: Chassis Viewer for EX2200-C Switches . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table 48: Chassis Viewer for EX3200, EX3300, and EX4200 Switches . . . . . . . . 69
Table 49: Chassis Viewer for EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 50: Chassis Viewer for EX4500 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table 51: Chassis Viewer for EX4550 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Table 52: Chassis Viewer for EX6210 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table 53: Chassis Viewer for EX8208 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table 54: Chassis Viewer for EX8216 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Table 55: Chassis Viewer for XRE200 External Routing Engines . . . . . . . . . . . . . . 77
Part 2 Site Planning, Preparation, and Specifications
Chapter6 Preparation Overview .............................................83
Table56:SitePreparationChecklist....................................83
Table 57: EX Series Switch Environmental Tolerances . . . . . . . . . . . . . . . . . . . . . . 85
Table 58: Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Table 59: Rack Requirements and Specifications for the Switch . . . . . . . . . . . . . . 91
Table 60: Cabinet Requirements and Specifications for the Switch . . . . . . . . . . . 92
Chapter 7 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Table 61: 350 W AC Power Supply Specifications for an EX4300 Switch . . . . . . . 97
Table 62: 715 W AC Power Supply Specifications for an EX4300 Switch . . . . . . . 98
Table 63: 1100 W AC Power Supply Specifications for an EX4300 Switch . . . . . . 98
Table 64: AC Power Cord Specifications for 350 W and 715 W AC Power Supplies
foranEX4300Switch...........................................99
Table 65: AC Power Cord Specifications for 1100 W AC Power Supplies for an
EX4300 Switch ................................................101
Table 66: DC Power Supply Specifications for an EX4300 Switch . . . . . . . . . . . 102
Table 67: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . 104
Chapter 8 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Copyright © 2015, Juniper Networks, Inc.xiv
EX4300 Switch Hardware Guide

Table 68: Optical interface Support and Copper Interface Support for Gigabit
Ethernet SFP Transceivers in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . 109
Table 69: Optical interface Support for Fast Ethernet SFP Transceivers in EX4300
Switches ......................................................117
Table 70: Optical interface Support for SFP+ Transceivers in EX4300
Switches......................................................118
Table 71: Optical interface Support for QSFP+ Transceivers in EX4300
Switches......................................................124
Table 72: Software Support for SFP+ Passive Direct Attach Cables for EX Series
Switches......................................................128
Table 73: SFP+ Direct Attach Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . 130
Table 74: Software Support for QSFP+ Passive Direct Attach Cables for EX
SeriesSwitches................................................133
Table 75: QSFP+ Direct Attach Cable Specifications . . . . . . . . . . . . . . . . . . . . . . 134
Table 76: Cable Specifications for Switch-to-Management-Device
Connections...................................................137
Chapter9 PinoutSpecifications.............................................139
Table 77: EX Series Switches Console Port Connector Pinout Information . . . . . 139
Table 78: Mini-USB Type-B Console Port Pinout Information for EX4300
Switches......................................................141
Table 79: Management Port Connector Pinout Information for EX4300
Switches......................................................143
Table 80: 10/100/1000BASE-T Ethernet Network Port Connector Pinout
Information ...................................................144
Table 81: SFP Network Port Connector Pinout Information . . . . . . . . . . . . . . . . . 144
Table 82: Built-in SFP+ Uplink Port and SFP+ Uplink Module Port Connector
Pinout Information .............................................145
Table 83: Built-in QSFP+ Port and QSFP+ Uplink Module Port Connector Pinout
Information ...................................................146
Table 84: RJ-45 to DB-9 Serial Port Adapter Pinout Information . . . . . . . . . . . . 148
Part 3 Initial Installation and Configuration
Chapter10 UnpackingtheSwitch.............................................151
Table 85: Inventory of Components Provided with an EX4300 Switch . . . . . . . . 152
Chapter 12 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Table 86: Parts and Tools Required for Connecting an EX Series Switch to Earth
Ground.......................................................168
Table 87: Special Instructions to Follow Before Connecting Earth Ground to a
Switch .......................................................170
Part 5 Troubleshooting
Chapter21 AlarmsandSyslogMessages......................................257
Table88:AlarmTerms..............................................257
Table 89: Summary of Key Alarm Output Fields . . . . . . . . . . . . . . . . . . . . . . . . . 259
Table 90: Filtering System Log Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Table 91: Viewing System Log Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
xvCopyright © 2015, Juniper Networks, Inc.
List of Tables

Copyright © 2015, Juniper Networks, Inc.xvi
EX4300 Switch Hardware Guide

About the Documentation
•Documentation and Release Notes on page xvii
•Supported Platforms on page xvii
•Documentation Conventions on page xvii
•Documentation Feedback on page xix
•Requesting Technical Support on page xx
Documentation and Release Notes
To obtain the most current version of all Juniper Networks®technical documentation,
see the product documentation page on the Juniper Networks website at
http://www.juniper.net/techpubs/.
If the information in the latest release notes differs from the information in the
documentation, follow the product Release Notes.
Juniper Networks Books publishes books by Juniper Networks engineers and subject
matter experts. These books go beyond the technical documentation to explore the
nuances of network architecture, deployment, and administration. The current list can
be viewed at http://www.juniper.net/books.
Supported Platforms
For the features described in this document, the following platforms are supported:
•EX4300
Documentation Conventions
Table 1 on page xviii defines notice icons used in this guide.
xviiCopyright © 2015, Juniper Networks, Inc.

Table 1: Notice Icons
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Indicates a situation that might result in loss of data or hardware damage.Caution
Alerts you to the risk of personal injury or death.Warning
Alerts you to the risk of personal injury from a laser.Laser warning
Indicates helpful information.Tip
Alerts you to a recommended use or implementation.Best practice
Table 2 on page xviii defines the text and syntax conventions used in this guide.
Table 2: Text and Syntax Conventions
ExamplesDescriptionConvention
To enter configuration mode, type the
configure command:
user@host> configure
Represents text that you type.Bold text like this
user@host> show chassis alarms
No alarms currently active
Represents output that appears on the
terminal screen.
Fixed-width text like this
•A policy term is a named structure
that defines match conditions and
actions.
•Junos OS CLI User Guide
•RFC 1997, BGP Communities Attribute
•Introduces or emphasizes important
new terms.
•Identifies guide names.
•Identifies RFC and Internet draft titles.
Italic text like this
Configure the machine’s domain name:
[edit]
root@# set system domain-name
domain-name
Represents variables (options for which
you substitute a value) in commands or
configuration statements.
Italic text like this
Copyright © 2015, Juniper Networks, Inc.xviii
EX4300 Switch Hardware Guide

Table 2: Text and Syntax Conventions (continued)
ExamplesDescriptionConvention
•To configure a stub area, include the
stub statement at the [edit protocols
ospf area area-id] hierarchy level.
•The console port is labeled CONSOLE.
Represents names of configuration
statements, commands, files, and
directories; configuration hierarchy levels;
or labels on routing platform
components.
Text like this
stub <default-metric metric>;Encloses optional keywords or variables.< > (angle brackets)
broadcast | multicast
(string1 |string2 |string3)
Indicates a choice between the mutually
exclusive keywords or variables on either
side of the symbol. The set of choices is
often enclosed in parentheses for clarity.
| (pipe symbol)
rsvp { # Required for dynamic MPLS onlyIndicates a comment specified on the
same line as the configuration statement
to which it applies.
# (pound sign)
community name members [
community-ids ]
Encloses a variable for which you can
substitute one or more values.
[ ] (square brackets)
[edit]
routing-options {
static {
route default {
nexthop address;
retain;
}
}
}
Identifies a level in the configuration
hierarchy.
Indention and braces ( { } )
Identifies a leaf statement at a
configuration hierarchy level.
; (semicolon)
GUI Conventions
•In the Logical Interfaces box, select
All Interfaces.
•To cancel the configuration, click
Cancel.
Represents graphical user interface (GUI)
items you click or select.
Bold text like this
In the configuration editor hierarchy,
select Protocols>Ospf.
Separates levels in a hierarchy of menu
selections.
>(bold right angle bracket)
Documentation Feedback
We encourage you to provide feedback, comments, and suggestions so that we can
improve the documentation. You can provide feedback by using either of the following
methods:
•Online feedback rating system—On any page at the Juniper Networks Technical
Documentation site at http://www.juniper.net/techpubs/index.html, simply click the
stars to rate the content, and use the pop-up form to provide us with information about
your experience. Alternately, you can use the online feedback form at
https://www.juniper.net/cgi-bin/docbugreport/.
xixCopyright © 2015, Juniper Networks, Inc.
About the Documentation

•E-mail—Send your comments to [e-mail]. Include the document
or topic name, URL or page number, and software version (if applicable).
Requesting Technical Support
Technical product support is available through the Juniper Networks Technical Assistance
Center (JTAC). If you are a customer with an active J-Care or Partner Support Service
support contract, or are covered under warranty, and need post-sales technical support,
you can access our tools and resources online or open a case with JTAC.
•JTAC policies—For a complete understanding of our JTAC procedures and policies,
review the JTAC User Guide located at
http://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.
•Product warranties—For product warranty information, visit
http://www.juniper.net/support/warranty/.
•JTAC hours of operation—The JTAC centers have resources available 24 hours a day,
7 days a week, 365 days a year.
Self-Help Online Tools and Resources
For quick and easy problem resolution, Juniper Networks has designed an online
self-service portal called the Customer Support Center (CSC) that provides you with the
following features:
•Find CSC offerings: http://www.juniper.net/customers/support/
•Search for known bugs: http://www2.juniper.net/kb/
•Find product documentation: http://www.juniper.net/techpubs/
•Find solutions and answer questions using our Knowledge Base: http://kb.juniper.net/
•Download the latest versions of software and review release notes:
http://www.juniper.net/customers/csc/software/
•Search technical bulletins for relevant hardware and software notifications:
http://kb.juniper.net/InfoCenter/
•Join and participate in the Juniper Networks Community Forum:
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•Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/
To verify service entitlement by product serial number, use our Serial Number Entitlement
(SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/
Opening a Case with JTAC
You can open a case with JTAC on the Web or by telephone.
•Use the Case Management tool in the CSC at http://www.juniper.net/cm/.
•Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
Copyright © 2015, Juniper Networks, Inc.xx
EX4300 Switch Hardware Guide