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
States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other
trademarks, service marks, registered trademarks, or registered service marks are the property of their respective 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 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