Juniper EX3400 Hardware Guide

EX3400 Switch Hardware Guide

Published

2020-12-15

Juniper Networks, Inc. 1133 Innovation 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 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.

EX3400 Switch Hardware Guide

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 https://support.juniper.net/support/eula/. By downloading, installing or using such software, you agree to the terms and conditions of that EULA.

About the Documentation | xi

Documentation and Release Notes | xi

Using the Examples in This Manual | xi

Merging a Full Example | xii

Merging a Snippet | xiii

Documentation Conventions | xiii

Documentation Feedback | xvi

Requesting Technical Support | xvi

Self-Help Online Tools and Resources | xvii

Creating a Service Request with JTAC | xvii

iii

Overview

EX3400 System Overview | 19

EX3400 Switches Hardware Overview | 19

Benefits of the EX3400 Switch | 19

EX3400 Switches First View | 20

Uplink Ports | 20

Virtual Chassis | 21

Console Ports | 21

Power over Ethernet Ports | 21

EX3400 Switch Models | 22

EX3400 Switch Hardware and CLI Terminology Mapping | 23

Chassis Physical Specifications for EX3400 Switches | 26

Field-Replaceable Units in EX3400 Switches | 27

EX3400 Chassis | 28

Front Panel of an EX3400 Switch | 28

Rear Panel of an EX3400 Switch | 30

Chassis Status LEDs in EX3400 Switches | 31

Management Port LEDs in EX3400 Switches | 33

RJ-45 Network Port and Uplink Port LEDs in EX3400 Switches | 34

EX3400 Cooling System | 38

Airflow Direction in EX3400 Switch Models | 38

Front-to-Back Airflow | 39

Back-to-Front Airflow | 39

EX3400 Power System | 41

AC Power Supply in EX3400 Switches | 41

AC Power Supply LEDs in EX3400 Switches | 42

AC Power Cord Specifications for EX3400 Switches | 44

DC Power Supply in EX3400 Switches | 45

Characteristics of a DC Power Supply | 46

DC Power Supply Airflow | 47

DC Power Supply LEDs in EX3400 Switches | 47

Power Specifications for EX3400 Switches | 48

Site Planning, Preparation, and Specifications

Site Preparation Checklist for EX3400 Switches | 51

EX3400 Site Guidelines and Requirements | 54

Environmental Requirements and Specifications for EX Series Switches | 54

General Site Guidelines | 59

Site Electrical Wiring Guidelines | 60

Rack Requirements | 60

Cabinet Requirements | 62

Clearance Requirements for Airflow and Hardware Maintenance for EX3400 Switches | 63

EX3400 Network Cable and Transceiver Planning | 65

Pluggable Transceivers Supported on EX3400 Switches | 66

SFP+ Direct Attach Copper Cables for EX Series Switches | 67

Cable Specifications | 67

List of DAC Cables Supported on EX Series Switches | 68

Standards Supported by These Cables | 68

QSFP+ Direct Attach Copper Cables for EX Series Switches | 69

Cable Specifications | 69

DAC Cables Supported on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253

Switches | 70

Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and

Dispersion | 70

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 71

Attenuation and Dispersion in Fiber-Optic Cable | 71

Calculating the Fiber-Optic Cable Power Budget for EX Series Devices | 72

Calculating the Fiber-Optic Cable Power Margin for EX Series Devices | 72

EX3400 Management Cable Specifications and Pinouts | 74

Management Cable Specifications | 75

Console Port Connector Pinout Information | 75

RJ-45 Management Port Connector Pinout Information | 76

USB Port Specifications for an EX Series Switch | 77

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

Information | 77

SFP+ Uplink Port Connector Pinout Information for an EX3400 Switch | 82

QSFP+ Uplink Port Connector Pinout Information for an EX3400 Switch | 83

RJ-45 to DB-9 Serial Port Adapter Pinout Information | 85

EX3400 Virtual Chassis | 86

Planning EX3400 Virtual Chassis | 87

Understanding EX3400 Virtual Chassis Hardware Configuration | 87

Virtual Chassis Cabling Configuration Examples for EX3400 Switches | 88

Initial Installation and Configuration

Unpacking and Mounting the EX3400 Switch | 92

Unpacking an EX3400 Switch | 92

Parts Inventory (Packing List) for an EX3400 Switch | 93

Installing and Connecting an EX3400 Switch | 95

Installing and Removing EX3400 Switch Hardware Components | 96

Mounting an EX3400 Switch on a Desk or Other Level Surface | 96

Mounting an EX3400 Switch on Two Posts in a Rack or Cabinet | 98

Mounting an EX3400 Switch on Four Posts in a Rack or Cabinet | 101

Mounting an EX3400 Switch in a Recessed Position in a Rack or Cabinet | 104

Mounting an EX3400 Switch on a Wall | 105

Connecting the EX3400 to Power | 108

Connect Earth Ground to an EX Series Switch | 109

Parts and Tools Required for Connecting an EX Series Switch to Earth Ground | 109

Special Instructions to Follow Before Connecting Earth Ground to an EX Series Switch | 114

Connecting Earth Ground to an EX Series Switch | 115

Connecting AC Power to an EX3400 Switch | 116

Connecting DC Power to an EX3400 Switch | 118

Connecting the EX3400 to External Devices | 122

Connect a Device to a Network for Out-of-Band Management | 122

Connect a Device to a Management Console Using an RJ-45 Connector | 123

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

Port | 124

Connecting the EX3400 to the Network | 126

Install a Transceiver | 126

Connect a Fiber-Optic Cable | 129

Configuring Junos OS on the EX3400 | 130

EX3400 Switch Default Configuration | 130

Connecting and Configuring an EX Series Switch (CLI Procedure) | 150

Connecting and Configuring an EX Series Switch (J-Web Procedure) | 154

Reverting to the Default Factory Configuration for the EX Series Switch | 158

Reverting to the EX Series Switch Factory-Default Configuration Using the request system

zeroize Command | 159

Reverting to the EX Series Switch Factory-Default Configuration Using the load

factory-default Command | 160

Reverting to the Factory-Default Configuration Using the EX Series Switch LCD Panel | 161

Reverting to the Factory-Default Configuration Using the Factory Reset/Mode button on

EX2300, EX3400, and EX4300-48MP Switches | 162

Dashboard for EX Series Switches | 164

Graphical Chassis Viewer | 165

System Information Panel | 167

Health Status Panel | 170

Capacity Utilization Panel | 174

Alarms Panel | 175

File System Usage | 175

Chassis Viewer | 175

Maintaining Components

Maintaining the EX3400 Switch Cooling System | 194

Removing a Fan Module from an EX3400 Switch | 194

vii

Installing a Fan Module in an EX3400 Switch | 195

Maintaining the EX3400 Power System | 197

Removing an AC Power Supply from an EX3400 Switch | 197

Installing an AC Power Supply in an EX3400 Switch | 199

Removing a DC Power Supply from an EX3400 Switch | 200

Installing a DC Power Supply in an EX3400 Switch | 202

Maintaining a Transceiver | 204

Install a Transceiver | 204

Remove a Transceiver | 207

Maintaining Fiber-Optic Cables | 210

Connect a Fiber-Optic Cable | 210

Disconnect a Fiber-Optic Cable | 211

How to Handle Fiber-Optic Cables | 212

Troubleshooting Hardware

Troubleshooting EX3400 Components | 215

Understand Alarm Types and Severity Levels on EX Series Switches | 215

Chassis Component Alarm Conditions on EX3400 Switches | 217

Check Active Alarms with the J-Web Interface | 219

Monitor System Log Messages | 220

Troubleshooting PoE Voltage Injection Failure in EX2300, EX3400, or EX4300 Switch Models

with PoE Capability | 225

Troubleshooting Storage Issues While Upgrading Junos OS in EX2300 and EX3400

Switches | 226

Troubleshoot Temperature Alarms in EX Series Switches | 228

Contacting Customer Support and Returning the Chassis or Components

Returning an EX3400 Chassis or Components | 234

viii

Returning an EX3400 Switch or Component for Repair or Replacement | 234

Locating the Serial Number on an EX3400 Switch or Component | 235

Listing the Switch and Components Details with the CLI | 235

Locating the Chassis Serial Number ID Label on an EX3400 Switch | 236

Contact Customer Support to Obtain Return Material Authorization | 237

Packing an EX3400 Switch or Component for Shipping | 237

Packing a Switch for Shipping | 238

Packing Switch Components for Shipping | 239

Safety and Compliance Information

General Safety Guidelines and Warnings | 242

Definitions of Safety Warning Levels | 243

Qualified Personnel Warning | 246

Warning Statement for Norway and Sweden | 247

Fire Safety Requirements | 247

Fire Suppression | 247

Fire Suppression Equipment | 247

Installation Instructions Warning | 249

Chassis and Component Lifting Guidelines | 249

Restricted Access Warning | 251

Ramp Warning | 253

Rack-Mounting and Cabinet-Mounting Warnings | 254

Grounded Equipment Warning | 260

Laser and LED Safety Guidelines and Warnings | 261

General Laser Safety Guidelines | 261

Class 1 Laser Product Warning | 262

Class 1 LED Product Warning | 263

Laser Beam Warning | 264

Radiation from Open Port Apertures Warning | 265

Maintenance and Operational Safety Guidelines and Warnings | 266

Battery Handling Warning | 267

Jewelry Removal Warning | 268

Lightning Activity Warning | 270

Operating Temperature Warning | 271

Product Disposal Warning | 273

General Electrical Safety Guidelines and Warnings | 274

Action to Take After an Electrical Accident | 275

Prevention of Electrostatic Discharge Damage | 276

AC Power Electrical Safety Guidelines | 277

AC Power Disconnection Warning | 279

DC Power Electrical Safety Guidelines | 280

DC Power Disconnection Warning | 281

DC Power Grounding Requirements and Warning | 283

DC Power Wiring Sequence Warning | 285

DC Power Wiring Terminations Warning | 288

Multiple Power Supplies Disconnection Warning | 291

TN Power Warning | 292

Agency Approvals for EX Series Switches | 292

Compliance Statements for EMC Requirements for EX Series Switches | 293

Canada | 294

Taiwan | 295

European Community | 295

Israel | 295

Japan | 295

Korea | 296

United States | 296

FCC Part 15 Statement | 296

Nonregulatory Environmental Standards | 297

Compliance Statements for Acoustic Noise for EX Series Switches | 298

About the Documentation

IN THIS SECTION

Documentation and Release Notes | xi

Using the Examples in This Manual | xi

Documentation Conventions | xiii

Documentation Feedback | xvi

Requesting Technical Support | xvi

Use this guide to install hardware and perform initial software configuration, routine maintenance, and troubleshooting for the EX3400 switch. After completing the installation and basic configuration procedures covered in this guide, refer to the Junos OS documentation for information about further software configuration.

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 https://www.juniper.net/documentation/.

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 https://www.juniper.net/books.

Using the Examples in This Manual

If you want to use the examples in this manual, you can use the load merge or the load merge relative command. These commands cause the software to merge the incoming configuration into the current candidate configuration. The example does not become active until you commit the candidate configuration.

If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example is a full example. In this case, use the load merge command.

If the example configuration does not start at the top level of the hierarchy, the example is a snippet. In this case, use the load merge relative command. These procedures are described in the following sections.

Merging a Full Example

To merge a full example, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration example into a text file, save the file with a name, and copy the file to a directory on your routing platform.

For example, copy the following configuration to a file and name the file ex-script.conf. Copy the ex-script.conf file to the /var/tmp directory on your routing platform.

system {

scripts {

commit {

file ex-script.xsl;

}

} } interfaces {

fxp0 {

disable; unit 0 {

family inet {

address 10.0.0.1/24;

}

} }

xii

2. Merge the contents of the file into your routing platform configuration by issuing the load merge configuration mode command:

[edit] user@host# load merge /var/tmp/ex-script.conf load complete

Merging a Snippet

To merge a snippet, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration snippet into a text file, save the file with a name, and copy the file to a directory on your routing platform.

For example, copy the following snippet to a file and name the file ex-script-snippet.conf. Copy the ex-script-snippet.conf file to the /var/tmp directory on your routing platform.

commit {

file ex-script-snippet.xsl; }

2. Move to the hierarchy level that is relevant for this snippet by issuing the following configuration mode command:

[edit] user@host# edit system scripts [edit system scripts]

xiii

3. Merge the contents of the file into your routing platform configuration by issuing the load merge relative configuration mode command:

[edit system scripts] user@host# load merge relative /var/tmp/ex-script-snippet.conf load complete

For more information about the load command, see CLI Explorer.

Documentation Conventions

Table 1 on page xiv defines notice icons used in this guide.

Table 1: Notice Icons

xiv

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

Caution

Indicates a situation that might result in loss of data or hardware damage.

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 xiv defines the text and syntax conventions used in this guide.

Table 2: Text and Syntax Conventions

ExamplesDescriptionConvention

Fixed-width text like this

Italic text like this

Represents text that you type.Bold text like this

Represents output that appears on the terminal screen.

Introduces or emphasizes important

•

new terms.

Identifies guide names.

•

Identifies RFC and Internet draft

•

titles.

To enter configuration mode, type the configure command:

user@host> configure

user@host> show chassis alarms

No alarms currently active

A policy term is a named structure

•

that defines match conditions and actions.

Junos OS CLI User Guide

•

RFC 1997, BGP Communities

•

Attribute

Table 2: Text and Syntax Conventions (continued)

ExamplesDescriptionConvention

Italic text like this

Text like this

< > (angle brackets)

| (pipe symbol)

Represents variables (options for which you substitute a value) in commands or configuration statements.

Represents names of configuration statements, commands, files, and directories; configuration hierarchy levels; or labels on routing platform components.

variables.

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.

Configure the machine’s domain name:

[edit] root@# set system domain-name

domain-name

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.

stub <default-metric metric>;Encloses optional keywords or

broadcast | multicast

(string1 | string2 | string3)

# (pound sign)

[ ] (square brackets)

Indention and braces ( { } )

; (semicolon)

GUI Conventions

Indicates a comment specified on the same line as the configuration statement to which it applies.

Encloses a variable for which you can substitute one or more values.

Identifies a level in the configuration hierarchy.

Identifies a leaf statement at a configuration hierarchy level.

rsvp { # Required for dynamic MPLS only

community name members [ community-ids ]

[edit] routing-options {

static {

route default {

nexthop address; retain;

}

Table 2: Text and Syntax Conventions (continued)

xvi

ExamplesDescriptionConvention

Bold text like this

> (bold right angle bracket)

Represents graphical user interface (GUI) items you click or select.

Separates levels in a hierarchy of menu selections.

In the Logical Interfaces box, select

•

All Interfaces.

To cancel the configuration, click

•

Cancel.

In the configuration editor hierarchy, select Protocols>Ospf.

Documentation Feedback

We encourage you to provide feedback so that we can improve our documentation. You can use either of the following methods:

Online feedback system—Click TechLibrary Feedback, on the lower right of any page on the Juniper

•

Networks TechLibrary site, and do one of the following:

Click the thumbs-up icon if the information on the page was helpful to you.

•

Click the thumbs-down icon if the information on the page was not helpful to you or if you have

•

suggestions for improvement, and use the pop-up form to provide feedback.

E-mail—Send your comments to techpubs-comments@juniper.net. 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 Juniper Care or Partner Support Services 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 https://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.

Product warranties—For product warranty information, visit https://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: https://www.juniper.net/customers/support/

•

Search for known bugs: https://prsearch.juniper.net/

•

xvii

Find product documentation: https://www.juniper.net/documentation/

•

Find solutions and answer questions using our Knowledge Base: https://kb.juniper.net/

•

Download the latest versions of software and review release notes:

•

https://www.juniper.net/customers/csc/software/

Search technical bulletins for relevant hardware and software notifications:

•

https://kb.juniper.net/InfoCenter/

Join and participate in the Juniper Networks Community Forum:

•

https://www.juniper.net/company/communities/

Create a service request online: https://myjuniper.juniper.net

•

To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool:

https://entitlementsearch.juniper.net/entitlementsearch/

Creating a Service Request with JTAC

You can create a service request with JTAC on the Web or by telephone.

Visit https://myjuniper.juniper.net.

•

Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).

•

For international or direct-dial options in countries without toll-free numbers, see

https://support.juniper.net/support/requesting-support/.

CHAPTER

Overview

EX3400 System Overview | 19

EX3400 Chassis | 28

EX3400 Cooling System | 38

EX3400 Power System | 41

EX3400 System Overview

IN THIS SECTION

EX3400 Switches Hardware Overview | 19

EX3400 Switch Models | 22

EX3400 Switch Hardware and CLI Terminology Mapping | 23

Chassis Physical Specifications for EX3400 Switches | 26

Field-Replaceable Units in EX3400 Switches | 27

EX3400 Switches Hardware Overview

IN THIS SECTION

Benefits of the EX3400 Switch | 19

EX3400 Switches First View | 20

Uplink Ports | 20

Virtual Chassis | 21

Console Ports | 21

Power over Ethernet Ports | 21

Juniper Networks EX Series Ethernet Switches provide scalable connectivity for the enterprise market, including branch offices, campus locations, and data centers. The switches run the Juniper Networks Junos operating system (Junos OS), which provides Layer 2 and Layer 3 switching, routing, and security services.

Juniper Networks EX3400 Ethernet Switches provide connectivity for low-density environments.

Benefits of the EX3400 Switch

High flexibility—EX3400 switches provide a flexible solution that supports converged data, voice, and video environments.

Support for MACsec—EX3400 switches support IEEE 802.1AE MACsec, providing support for link-layer data confidentiality, data integrity, and data origin authentication. The MACsec feature enables EX3400 to support 88 Gbps of near line-rate hardware-based traffic encryption on all Gigabit Ethernet and 10 Gigabit Ethernet ports.

Nondisruptive software upgrades—EX3400 switches feature a resilient operating system that supports high availability (HA) features such as graceful Routing Engine switchover (GRES), nonstop active routing (NSR), and nonstop software upgrade (NSSU), providing software upgrades and changes without disrupting network traffic.

EX3400 Switches First View

EX3400 switches provide:

Either 24 or 48 RJ-45 ports (labeled 0 through 23 or 0 through 47) that support 10/100/1000BASE-T

•

Gigabit Ethernet connectors.

Four uplink ports (labeled 0 through 3 on the front panel) that support small form-factor pluggable (SFP)

•

transceivers and small form-factor pluggable plus (SFP+) transceivers, and two 40-Gigabit Ethernet ports (labeled 0 through 1 on the rear panel) that support quad small form-factor pluggable plus (QSFP+) transceivers.

Virtual Chassis capability—You can connect up to 10 EX3400 switches together to form one unit that

•

you manage as a single chassis, called a Virtual Chassis.

Power over Ethernet (PoE) or Power over Ethernet plus (PoE+) on all RJ-45 ports (in PoE-capable models).

•

Uplink Ports

EX3400 switches have autosensing uplink ports that you can use to:

Connect an access switch to a distribution switch

•

Interconnect member switches of a Virtual Chassis

•

The QSFP+ uplink ports are configured as Virtual Chassis ports (VCPs) by default. You can use these ports to interconnect Virtual Chassis members. To use the QSFP+ uplink ports as network ports, you must configure them as network ports. The uplink ports on the front panel are configured as network ports by default. To use the uplink ports on the front panel as VCPs, you must configure them as VCPs. See Setting an Uplink Port on an EX Series or QFX Series Switch as a Virtual Chassis Port.

The uplink ports on the front panel support four 1-gigabit SFP transceivers, four 10-gigabit SFP+ transceivers, or a combination of four SFP+ and SFP transceivers. The QSFP+ uplink ports support 40-gigabit QSFP+ transceivers. For a list of supported transceivers, see “Pluggable Transceivers Supported on EX3400

Switches” on page 66.

NOTE: You cannot form a Virtual Chassis by using SFP transceivers.

Virtual Chassis

You can interconnect a maximum of 10 EX3400 switches to form a Virtual Chassis. You can operate these interconnected switches as a single, logical device with a single IP address.

You can use the following ports to interconnect an EX3400 switch in a Virtual Chassis:

QSFP+ ports configured as VCPs by using QSFP+ transceivers

•

NOTE: You cannot form a Virtual Chassis by using SFP transceivers.

Uplink ports on the front panel configured as VCPs by using SFP+ transceivers

By default, the QSFP+ ports are configured as VCPs.

Console Ports

EX3400 switches have two console ports—an RJ-45 console port and a Mini-USB Type-B console port. The RJ-45 console port is on the rear panel of the switch and the mini-USB console port is on the front panel. Both console ports are labeled CON. The RJ-45 console port accepts a cable that has an RJ-45 connector and the Mini-USB Type-B console port accepts a Mini-B plug (5-pin) connector to connect to the console management device.

Power over Ethernet Ports

EX3400 switches are available with or without Power over Ethernet (PoE) or Power over Ethernet Plus (PoE+) capability. Models that support PoE or PoE+ provide that support on all RJ-45 ports. PoE ports provide electrical current to devices—such as IP phones, wireless access points, and security cameras—through network cables, thus eliminating the need for separate power cords for those devices.

NOTE: IEEE 802.3at class 4 powered devices require category 5 or higher Ethernet cables.

The remainder of this documentation uses the term PoE for both PoE and PoE+ unless there is a need to distinguish between the two.

EX3400 Switch Models

EX3400 switch models are available:

With 24 or 48 RJ-45 ports

•

With or without PoE+ capability

•

With front-to-back or back-to-front airflow

•

With AC or DC power supplies

•

Table 3 on page 22 lists the EX3400 switch models.

Table 3: EX3400 Switch Models

Access PortsModel

Power Supply Provided by Default

Ports in Which PoE+ Is Available

Maximum System Power Available for PoE/PoE+

Direction of Airflow

First Junos OS Release

EX3400-24T

EX3400-24P

EX3400-24T-DC

Gigabit Ethernet

15.1X53-D50Front-to-back––JPSU-150-AC-AFO24

JPSU-600-AC-AFO24

All 24 ports

720 W

•

with two 600 W power supplies installed

370 W

•

with one 600 W power supply installed

15.1X53-D50Front-to-back

15.1X53-D51Front-to-back––JPSU-150W-DC-AFO24

EX3400-48T

15.1X53-D50Front-to-back––JPSU-150-AC-AFO48 Gigabit Ethernet

Table 3: EX3400 Switch Models (continued)

Access PortsModel

Power Supply Provided by Default

Ports in Which PoE+ Is Available

Maximum System Power Available for PoE/PoE+

Direction of Airflow

First Junos OS Release

EX3400-48T-AFI

EX3400-48P

EX3400-48T-DC

Gigabit Ethernet

15.1X53-D50Back-to-front––JPSU-150-AC-AFI48

JPSU-920-AC-AFO48

All 48 ports

1440 W

•

with two 920 W power supplies installed

740 W

•

with one 920 W power supply installed

15.1X53-D50Front-to-back

18.2R3-S4Front-to-back––JPSU-150W-DC-AFO48

EX3400 Switch Hardware and CLI Terminology Mapping

This topic describes the hardware terms used in EX3400 switch documentation and the corresponding terms used in the Junos OS CLI. See Table 4 on page 24.

Table 4: CLI Equivalents of Terms Used in Documentation for EX3400 Switches

Hardware Item (Field as Displayed in CLI)

Chassis

FPC (n)

Description (Field as Displayed in CLI)

EX3400-24T

•

EX3400-24P

•

EX3400-24T-DC

•

EX3400-48T

•

EX3400-48T-AFI

•

EX3400-48P

•

EX3400-48T-DC

•

switches:

Abbreviated name of the Flexible PIC Concentrator (FPC)

One of the following:

Value (Field as Displayed in CLI)

Value of n is always 0.On standalone EX3400

Item in Documentation

Switch chassis–One of the following:

The switch does not have actual FPCs. In this case, FPC refers to the switch itself.

Additional Information

“Chassis Physical Specifications for EX3400 Switches” on page 26

Understanding

Interface Naming

Conventions

EX3400-24T

•

EX3400-24P

•

EX3400-24T-DC

•

EX3400-48T

•

EX3400-48T-AFI

•

EX3400-48P

•

EX3400-48T-DC

•

On EX3400 Virtual Chassis: Member ID of the switch within the Virtual Chassis

n is a value in the range of 0–9.

In this case, the FPC number refers to the member ID assigned to the switch.

Understanding

Virtual Chassis

Components

Table 4: CLI Equivalents of Terms Used in Documentation for EX3400 Switches (continued)

Hardware Item (Field as Displayed in CLI)

PIC (n)

Description (Field as Displayed in CLI)

Abbreviated name of the Physical Interface Card (PIC)

24x 10/100/1000

•

BASE-T

48x 10/100/1000

•

BASE-T

Value (Field as Displayed in CLI)

n is a value in the range of 0–2.

PIC 0One of the following:

PIC 24x GE SFP+

Item in Documentation

The switch does not have actual PIC devices; see entries for PIC 0 through PIC 2 for the equivalent item on the switch.

RJ-45 ports on the front panel of the switch.

SFP+ uplink ports on the front panel of the switch.

Additional Information

Understanding

Interface Naming

Conventions

“Front Panel of an EX3400 Switch” on page 28

Xcvr (n)

Power Supply (n)

Abbreviated name of the transceiver

One of the following:

JPSU-150W-AC-AFI

•

JPSU-150W-AC-AFO

•

JPSU-600W-AC-AFO

•

JPSU-920W-AC-AFO

•

JPSU-150W-DC-AFO

•

PIC 12x XE QSFP+

n is a value equivalent to the number of the port in which the transceiver is installed.

n has a value 0 or 1, corresponding to the power supply slot number.

QSFP+ uplink ports on the rear panel of the switch.

Optical transceivers

AC power supply or DC power supply

“Rear Panel of an EX3400 Switch” on page 30

“Pluggable Transceivers Supported on EX3400 Switches” on page 66

“AC Power Supply in EX3400 Switches” on page 41

“DC Power Supply in EX3400 Switches” on page 45

Table 4: CLI Equivalents of Terms Used in Documentation for EX3400 Switches (continued)

Hardware Item (Field as Displayed in CLI)

Fan Tray

Description (Field as Displayed in CLI)

One of the following:

Fan Module, Airflow

•

In (AFI)

Fan Module, Airflow

•

Out (AFO)

Value (Field as Displayed in CLI)

corresponding to the fan module slot number.

Item in Documentation

Fan trayn has a value 0 or 1,

Additional Information

“EX3400 Cooling System” on page 38

Chassis Physical Specifications for EX3400 Switches

The EX3400 switch chassis is a rigid sheet-metal structure that houses the hardware components.

Table 5 on page 26 summarizes the physical specifications of the EX3400 switch chassis.

Table 5: Physical Specifications of the EX3400 Switch Chassis

ValueDescription

Chassis width

1.72 in. (4.4 cm)Chassis height

17.4 in. (44.1 cm)

•

19 in. (48.2 cm) with mounting brackets attached

•

13.8 in. (35 cm)Chassis depth

Table 5: Physical Specifications of the EX3400 Switch Chassis (continued)

ValueDescription

Weight

SEE ALSO

EX3400-24T (without power supply or fan modules installed): 9.755 lb (4.425 kg)

•

EX3400-24T-DC (without power supply or fan modules installed): 9.755 lb

•

(4.425 kg)

EX3400-24P (without power supply or fan modules installed): 9.965 lb (4.52 kg)

•

EX3400-48T (without power supply or fan modules installed): 10.227 lb (4.639 kg)

•

EX3400-48T-AFI (without power supply or fan modules installed): 10.238 lb

•

(4.644 kg)

EX3400-48P (without power supply or fan modules installed): 10.49 lb (4.758 kg)

•

EX3400-48T-DC (without power supply or fan modules installed): 10.227 lb

•

(4.639 kg)

JPSU-150-AC-AFO: 1.433 lb (0.65 kg)

•

JPSU-150-AC-AFI: 1.433 lb (0.65 kg)

•

JPSU-600-AC-AFO: 1.823 lb (0.827 kg)

•

JPSU-920-AC-AFO: 1.874 lb (0.85 kg)

•

JPSU-150W-DC-AFO: 1.433 lb (0.65 kg)

•

Installing and Connecting an EX3400 Switch | 95

Field-Replaceable Units in EX3400 Switches

Field-replaceable units (FRUs) are components that you can replace at your site. The FRUs in EX3400 switches are hot-removable and hot-insertable: You can remove and replace them without powering off the switch. The FRUs in EX3400 switches are:

Power supplies

•

Fan modules

•

Transceivers

•

NOTE: If you have a Juniper J-Care service contract, register any addition, change, or upgrade

of hardware components at https://www.juniper.net/customers/support/tools/updateinstallbase/. Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.

EX3400 Chassis

IN THIS SECTION

Front Panel of an EX3400 Switch | 28

Rear Panel of an EX3400 Switch | 30

Chassis Status LEDs in EX3400 Switches | 31

Management Port LEDs in EX3400 Switches | 33

RJ-45 Network Port and Uplink Port LEDs in EX3400 Switches | 34

Front Panel of an EX3400 Switch

The front panel of an EX3400 switch consists of the following components:

RJ-45 ports:

•

Depending on the switch model, 24 or 48 RJ-45 ports (labeled 0 through 23 or 0 through 47) that

•

support 10/100/1000BASE-T Gigabit Ethernet connectors

PoE available in all RJ-45 ports in EX3400-24P and EX3400-48P models

•

PoE not available in any network port in EX3400-24T, EX3400-24T-DC, EX3400-48T, EX3400-48T-AFI,

•

and EX3400-48T-DC models

Three chassis status LEDs

•

Four port status mode LEDs in models with PoE capability and three port status mode LEDs in models

•

without PoE capability

One Factory Reset/Mode button

•

One Mini-USB console port (the Mini-USB Type-B console port accepts a Mini-B plug (5-pin) connector

•

to connect to the console management device)

Four uplink ports that support SFP+ transceivers, SFP transceivers, or a combination of these transceivers.

•

These uplink ports are configured as network ports by default. To use the uplink ports to interconnect Virtual Chassis members, you must configure them as VCPs. See Setting an Uplink Port on an EX Series or QFX Series Switch as a Virtual Chassis Port.

Figure 1 on page 29 shows the front panel of an EX3400 switch with 24 Gigabit Ethernet ports. Figure 2 on page 29 shows the front panel of an EX3400 switch with 48 Gigabit Ethernet ports.

Figure 1: Front Panel of an EX3400 Switch with 24 Gigabit Ethernet Ports

4—1— Factory Reset/Mode buttonRJ-45 ports

5—2— Mini-USB console portChassis status LEDs

6—3— Uplink portsPort status mode LEDs. The LED labeled PoE is

present only on models with PoE capability.

Figure 2: Front Panel of an EX3400 Switch with 48 Gigabit Ethernet Ports

4—1— Factory Reset/Mode buttonRJ-45 ports

5—2— Mini-USB console portChassis status LEDs

6—3— Uplink portsPort status mode LEDs. The LED labeled PoE is

present only on models with PoE capability.

Rear Panel of an EX3400 Switch

The rear panel of the EX3400 switch consists of the following components:

1 USB port

•

1 management Ethernet port that supports an RJ-45 connector

•

1 RJ-45 console port (the RJ-45 console port accepts a cable with an RJ-45 connector to connect to the

•

console management device)

1 protective earthing terminal

•

2 QSFP+ uplink ports. These uplink ports are configured as Virtual Chassis ports (VCPs) by default. You

•

can use these uplink ports to interconnect Virtual Chassis members. To use the QSFP+ uplink ports as network ports, you must configure them as network ports.

1 ESD point

•

2 fan modules

•

CLEI code label

•

Serial Number ID Label

•

1 AC power supply or DC power supply

•

Empty slot for power supply covered by a blank panel or DC power supply

•

Figure 3 on page 30 shows the rear panel of an EX3400 switch with AC power supply.

The power cord retainer extends out of the chassis by 3 in. (7.62 cm). The fan module handle extends out of the chassis by 1.2 in. (3 cm).

Figure 3: Rear Panel of an EX3400 Switch with an AC Power Supply

7—1— Fan modulesUSB port

8—2— CLEI code labelManagement Ethernet port

6—ESD point

9—3— Serial Number ID LabelRJ-45 console port

10—4— AC power supplyProtective earthing terminal

11—5— Empty slot for power supply covered by a blank panelQSFP+ uplink ports

Figure 4 on page 31 shows the rear panel of an EX3400 switch with DC power supply.

Figure 4: Rear Panel of an EX3400 Switch with a DC Power Supply

7—1— Fan modulesUSB port

8—2— CLEI code labelManagement Ethernet port

9—3— Serial Number ID LabelRJ-45 console port

10—4— DC power supplyProtective earthing terminal

11—5— Empty slot for power supply covered by a blank panelQSFP+ uplink ports

6—ESD point

NOTE: EX3400 switches shipped after 2 February, 2017 have serial number ID label on the side

panel of the chassis and on the rear panel of the chassis. EX3400 switches shipped before 2 February, 2017 have the serial number ID label only on the side panel of the chassis.

Chassis Status LEDs in EX3400 Switches

The front panel of an EX3400 switch has three chassis status LEDs labeled SYS, ALM, and MST (see

Figure 5 on page 31).

Figure 5: Chassis Status LEDs in an EX3400 Switch

1—Chassis Status LEDs

Table 6 on page 32 describes the chassis status LEDs in an EX3400 switch, their colors and states, and

the status they indicate.

Table 6: Chassis Status LEDs in an EX3400 Switch

State and DescriptionColorLED Label

GreenSYS

RedALM

On steadily—Junos OS for EX Series

•

switches has been loaded on the switch.

Blinking—The switch is booting.

•

Off—The switch is powered off or is halted.

•

There is a major alarm.

NOTE: When you connect power to the

switch, the alarm LED (ALM) glows red. This behavior is normal. Plugging an active Ethernet cable into the management port (MGMT) on the switch completes the network link and turns off the ALM LED. (See “Connect a

Device to a Network for Out-of-Band Management” on page 122.)

Connecting the switch to a dedicated management console instead of a network does not affect the ALM LED. The LED remains red until the switch is connected to a network.

Yellow

There is a minor alarm.

NOTE: The ALM LED glows yellow if you

commit a configuration to make it active on the switch without creating a rescue configuration to back it up. To save the most recently committed configuration as the rescue configuration, enter the operational mode command request system configuration rescue save.

There is no alarm or the switch is halted.Unlit

Table 6: Chassis Status LEDs in an EX3400 Switch (continued)

State and DescriptionColorLED Label

GreenMST

In a standalone EX3400 switch:

On steadily—The switch is functioning

•

normally as the primary.

Off—The switch is powered off or is halted.

•

In a Virtual Chassis configuration:

On steadily—The switch is functioning

•

normally and is the primary in the Virtual Chassis configuration.

Blinking—The switch is functioning normally

•

and is the backup in the Virtual Chassis configuration.

Off—The switch is a linecard member in the

•

Virtual Chassis configuration or is halted.

A major alarm (red) indicates a critical error condition that requires immediate action.

A minor alarm (yellow) indicates a noncritical condition that requires monitoring or maintenance. A minor alarm that is left unchecked might cause interruption in service or performance degradation.

All three LEDs can be lit simultaneously.

You can view the colors of the two LEDs remotely through the CLI by issuing the operational mode command show chassis led.

SEE ALSO

Understand Alarm Types and Severity Levels on EX Series Switches | 215

Management Port LEDs in EX3400 Switches

The management port, which is on the rear panel of an EX3400 switch, has two LEDs that indicate link/activity and port status (see Figure 6 on page 34).

Figure 6: LEDs on the Management Port on an EX3400 Switch

2—1— Status LEDLink/Activity LED

Table 7 on page 34 describes the Link/Activity LED.

Table 7: Link/Activity LED on the Management Port on an EX3400 Switch

State and DescriptionColorLED

GreenLink/Activity

Blinking—The port and the link are active, and there is

•

link activity.

Off—The port is not active.

•

Table 8 on page 34 describes the Status LED.

Table 8: Status LED on the Management Port on an EX3400 Switch

State and DescriptionColorLED

GreenStatus

Indicates the speed. The speed indicators are:

Off—Link speed is 10 Mbps

•

Blinking—Link speed is 100 Mbps

•

On Steadily—Link speed is 1000 Mbps

•

SEE ALSO

Connect a Device to a Network for Out-of-Band Management | 122

RJ-45 Network Port and Uplink Port LEDs in EX3400 Switches

Each RJ-45 network port and the uplink port on an EX3400 switch have two LEDs each that indicate link/activity and port status. See Figure 7 on page 35, Figure 8 on page 35, and Figure 9 on page 35.

Figure 7: LEDs on the RJ-45 Network Ports

g041128

Link/ Activity

Status

Figure 8: LEDs on the SFP+ Uplink Ports

2—1— Status LED on the SFP+ uplink portsLink/Activity LED on the SFP+ uplink ports

Figure 9: LEDs on the QSFP+ Uplink Ports

2—1— Status LED on the QSFP+ uplink portsLink/Activity LED on the QSFP+ uplink ports

Table 9 on page 35 describes the Link/Activity LED.

Table 9: Link/Activity LED on the RJ-45 Network Ports and the Uplink Ports

State and DescriptionColorLED

GreenLink/Activity

Blinking—The port and the link are active, and there is link activity;

•

or the switch is transitioning to the EZSetup mode.

On steadily—The port and the link are active, but there is no link

•

activity; or the switch is reverting to the factory default configuration.

Off—The port is not active.

•

Figure 10 on page 36 shows the LEDs that indicate the status of one of the four port parameters—speed,

duplex mode, administrative status, and Power over Ethernet (PoE) status. Use the Factory Reset/Mode button on the far right side of the front panel to toggle the Status LED to show the different port parameters for RJ-45 network ports. You can tell which port parameter is indicated by the Status LED by looking at which port status mode LED (SPD, DX, EN, and PoE) is lit. The LED labeled PoE is not available on switch models with RJ-45 network ports that do not provide PoE.

Figure 10: Port Mode LEDs on EX3400 Switches

1—Port mode LEDs

Table 10 on page 36 describes the Status LED on the RJ-45 network ports.

Table 10: Status LED on the RJ-45 Network Ports in EX3400 Switches

State and DescriptionPort Parameters

Speed (SPD)

Duplex mode (DX)

Administrative status (EN)

Indicates the speed. The speed indicators are:

Unlit—10 Mbps

•

Blinking—100 Mbps

•

On steadily—1000 Mbps

•

Indicates the duplex mode. The status indicators are:

Green—Port is set to full-duplex mode.

•

Unlit—Port is set to half-duplex mode.

•

Indicates the administrative status. The status indicators are:

Green—Port is administratively enabled.

•

Unlit—Port is administratively disabled.

•

Table 10: Status LED on the RJ-45 Network Ports in EX3400 Switches (continued)

State and DescriptionPort Parameters

PoE status (PoE)

Indicates the PoE status. The status indicators for are:

On steadily—PoE is available on the port, a device that draws power from

•

the port is connected to the port, and the device is drawing power from the port.

Blinking—PoE is available on the port, but no power is drawn from the port

•

because of one of the following:

No device that draws power from the port is connected to the port.

•

A device that draws power from the port is connected to the port, but

•

the device is not drawing any power from the port.

Unlit—PoE is not available on the port.

•

NOTE: PoE Status LED is available on the following EX3400 switch models:

EX3400-24P

•

EX3400-48P

•

Starting in Junos OS Release 19.4R1, you can use the request chassis beacon command on EX3400 switches to identify the switch or a port on the switch. When you execute the command, the status LEDs on the RJ-45 network ports blink two times per second irrespective of the mode the ports are operating in (see How to Locate a Device or Port Using the Chassis Beacon).

The uplink ports operate in full-duplex mode and PoE is not applicable on uplink ports. The Status LED on uplink ports indicate the Speed (SPD) and Administrative status (EN). Table 11 on page 37 describes the Status LED on the uplink ports.

Table 11: Status LED on the Uplink Ports in EX3400 Switches

State and DescriptionPort Parameters

Status LED

Indicates the speed and administrative status.

The indicators for SFP+ uplink ports are:

•

On steadily—10 Gbps

•

Blinking—1000 Mbps

•

Unlit—The port is administratively disabled or the link is down

•

The indicators for QSFP+ uplink ports are:

•

On steadily—40-Gigabit port is up

•

Unlit—40-Gigabit port is down

•

You can tell which port parameter is indicated by the Status LED on RJ-45 network ports and uplink ports by issuing the operational mode command show chassis led.

EX3400 Cooling System

IN THIS SECTION

Airflow Direction in EX3400 Switch Models | 38

Front-to-Back Airflow | 39

Back-to-Front Airflow | 39

The cooling system in an EX3400 switch consists of two fans along the rear of the chassis and a fan each in the power supplies. The fans provide front-to-back or back-to-front chassis cooling depending on the switch model.

Airflow Direction in EX3400 Switch Models

Table 12 on page 38 shows the different EX3400 switch models and their direction of airflow.

Table 12: Airflow Direction in EX3400 Switch Models

Direction of AirflowModel

Front-to-backEX3400-24T

Front-to-backEX3400-24P

Front-to-backEX3400-24T-DC

Front-to-backEX3400-48T

Back-to-frontEX3400-48T-AFI

Front-to-backEX3400-48P

Front-to-backEX3400-48T-DC

Front-to-Back Airflow

In switch models with front-to-back airflow, the air intake is located on the front of the chassis. Cool air is pulled into the chassis and pushed toward the rear of the chassis. Hot air exhausts from the rear of the chassis. See Figure 11 on page 39.

Figure 11: Front-to-Back Airflow Through the EX3400 Switch Chassis

Back-to-Front Airflow

In switch models with back-to-front airflow, the air intake is located on the rear of the chassis. Cool air is pulled into the chassis and pushed toward the front of the chassis. Hot air exhausts from the front of the chassis. See Figure 12 on page 40.

Figure 12: Back-to-Front Airflow Through the EX3400 Switch Chassis

Under normal operating conditions, the fans operate at moderate speeds for minimal noise. Temperature sensors in the chassis monitor the temperature within the chassis. If any fan fails or if the temperature inside the chassis rises above the threshold, the switch raises an alarm and all functioning fans operate at a higher speed than normal. If the temperature inside the chassis rises above the threshold, the switch shuts down automatically.

EX3400 Power System

IN THIS SECTION

AC Power Supply in EX3400 Switches | 41

AC Power Supply LEDs in EX3400 Switches | 42

AC Power Cord Specifications for EX3400 Switches | 44

DC Power Supply in EX3400 Switches | 45

DC Power Supply LEDs in EX3400 Switches | 47

Power Specifications for EX3400 Switches | 48

AC Power Supply in EX3400 Switches

The AC power supplies in EX3400 switches are hot-insertable and hot-removable field-replaceable units (FRUs): You can install them without powering off the switch or disrupting the switching function. The switch is shipped with one power supply installed.

NOTE: After powering on the switch, wait for at least 60 seconds before powering it off. After

powering off the switch, wait for at least 60 seconds before powering it back on.

If only one power supply is installed in your EX3400 switch, you need to power off the switch before removing the power supply.

Table 13 on page 41 lists the power consumed by each EX3400 switch model. The maximum power

available on a PoE+ port is 30 W.

Table 13: Power Consumed by EX3400 Switches

Number of PoE-Enabled PortsModel Number

Maximum Power Consumed by the Switch

Maximum System Power Available for PoE

–100 W–EX3400-24T

Table 13: Power Consumed by EX3400 Switches (continued)

Number of PoE-Enabled PortsModel Number

Maximum Power Consumed by the Switch

110 W24EX3400-24P

120 W48EX3400-48P

Maximum System Power Available for PoE

720 W with two 600 W

•

power supplies installed

370 W with one 600 W

•

power supply installed

–120 W–EX3400-48T

–120 W–EX3400-48T-AFI

1440 W with two 920 W

•

power supplies installed

740 W with one 920 W

•

power supply installed

NOTE: In EU countries, Egypt, Nigeria, Saudi Arabia, Serbia, South Korea, and South Africa, you

must ensure that the redundant power supply is installed in the switch chassis.

SEE ALSO

Connecting AC Power to an EX3400 Switch | 116 Connecting DC Power to an EX3400 Switch | 118

AC Power Supply LEDs in EX3400 Switches

Figure 13 on page 43 shows the location of the LEDs on an AC power supply for an EX3400 switch.

Figure 13: AC Power Supply LEDs in an EX3400 Switch

g022275

2—1— AC OK LEDDC OK LED

Table 14 on page 43 describes the AC power supply LEDs.

Table 14: AC Power Supply LEDs in EX3400 Switches

DescriptionColorLED

UnlitAC OK

UnlitDC OK

Green

Indicates one of the following:

AC power input voltage is not within normal operating range.

•

No AC power input.

•

Power supply is receiving proper input power.Green

Indicates one of the following:

IN OK LED is unlit.

•

The power supply is not delivering power correctly.

•

The power supply is delivering power and is functioning correctly.

The power supply has failed and must be replaced.Red

NOTE: If the AC OK LED and the DC OK LED are not lit green, either the AC power cord is not

installed properly or the power input voltage is not within normal operating range.

If the AC OK LED is lit green and the DC OK LED is unlit or lit red, the AC power supply is installed properly, but the power supply has an internal failure.

AC Power Cord Specifications for EX3400 Switches

A detachable AC power cord is supplied with the AC power supplies. The coupler is type C13 as described by International Electrotechnical Commission (IEC) standard 60320. The plug end of the power cord fits into the power source outlet that is standard for your geographical location.

CAUTION: The AC power cord provided with each power supply is intended for use

with that power supply only and not for any other use.

NOTE: In North America, AC power cords must not exceed 4.5 meters (approximately 14.75 feet)

in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52 and Canadian Electrical Code (CEC) Section 4-010(3). The cords supplied with the switch are in compliance.

Table 15 on page 44 gives the AC power cord specifications for the countries and regions listed in the

table.

Table 15: AC Power Cord Specifications

Juniper Model NumberPlug StandardsElectrical SpecificationsCountry/Region

CBL-EX-PWR-C13-ARIRAM 2073 Type RA/3250 VAC, 10 A, 50 HzArgentina

250 VAC, 10 A, 50 HzAustralia

SAA/3

Switzerland, and United Kingdom)

CBL-EX-PWR-C13-AUAS/NZZS 3112 Type

CBL-EX-PWR-C13-BRNBR 14136 Type BR/3250 VAC, 10 A, 50 HzBrazil

CBL-EX-PWR-C13-CHGB 1002-1996 Type PRC/3250 VAC, 10 A, 50 HzChina

CBL-EX-PWR-C13-EUCEE (7) VII Type VIIG250 VAC, 10 A, 50 HzEurope (except Italy,

CBL-EX-PWR-C13-INIS 1293 Type IND/3250 VAC, 10 A, 50 HzIndia

CBL-EX-PWR-C13-ILSI 32/1971 Type IL/3G250 VAC, 10 A, 50 HzIsrael

CBL-EX-PWR-C13-ITCEI 23-16 Type I/3G250 VAC, 10 A, 50 HzItaly

Table 15: AC Power Cord Specifications (continued)

Juniper Model NumberPlug StandardsElectrical SpecificationsCountry/Region

Japan

Korea

250 VAC, 10 A, 50 HzSouth Africa

ZA/13

Taiwan

50 Hz

CBL-EX-PWR-C13-JPSS-00259 Type VCTF125 VAC, 12 A, 50 Hz or 60

CBL-EX-PWR-C13-KRCEE (7) VII Type VIIGK250 VAC, 10 A, 50 Hz or 60

CBL-EX-PWR-C13-USNEMA 5-15 Type N5-15125 VAC, 13 A, 60 HzNorth America

CBL-PWR-C13-US-48PNEMA 5-15 Type N5-15125 VAC, 15 A, 60 Hz

CBL-EX-PWR-C13-SASABS 164/1:1992 Type

CBL-EX-PWR-C13-SZSEV 6534-2 Type 12G250 VAC, 10 A, 50 HzSwitzerland

CBL-EX-PWR-C13-TWNEMA 5-15P Type N5-15P125 VAC, 11 A and 15 A,

CBL-EX-PWR-C13-UKBS 1363/A Type BS89/13250 VAC, 10 A, 50 HzUnited Kingdom

Figure 14 on page 45 illustrates the plug on the power cord for some of the countries or regions listed in Table 15 on page 44.

Figure 14: AC Plug Types

DC Power Supply in EX3400 Switches

IN THIS SECTION

Characteristics of a DC Power Supply | 46

DC Power Supply Airflow | 47

The DC power supplies in EX3400 switches are hot-insertable and hot-removable field-replaceable units (FRUs): You can install them without powering off the switch or disrupting the switching function. The switch is shipped with one power supply installed.

NOTE: After powering on the switch, wait for at least 60 seconds before powering it off. After

powering off the switch, wait for at least 60 seconds before powering it back on.

If only one power supply is installed in your EX3400 switch, you need to power off the switch before removing the power supply.

Table 16 on page 46 lists the power consumed by a DC-powered EX3400 switch model.

Table 16: Power Consumed by a DC-Powered EX3400 Switch

Number of PoE-Enabled PortsModel Number

Maximum Power Consumed by the Switch

Maximum System Power Available for PoE

–110 W–EX3400-24T-DC

–120 W–EX3400-48T-DC

Characteristics of a DC Power Supply

EX3400 switches support 150 W DC power supply.

You can install up to two DC power supplies in an EX3400 switch. Power supplies are installed in the power supply slots labeled PSU 0 and PSU 1 in the rear panel of the chassis.

Table 17 on page 46 lists the details of the power supplies used in EX3400 switches.

Table 17: Details of the DC Power Supplies in EX3400 Switches

150 W DC Power SupplyDetails

JPSU-150-DC-AFOModel number

Hot-insertable and hot-removableField-replaceable unit (FRU) type

1.433 lb (0.65 kg)Power supply weight

1Minimum installed in chassis

2Maximum installed in chassis

Table 17: Details of the DC Power Supplies in EX3400 Switches (continued)

150 W DC Power SupplyDetails

Install in power supply slots in the rear panel of the chassis.Power supply slots

InternalFans

Front-to-back, indicated by label AIR OUTAirflow

IN OK and OUT OKPower supply status LEDs

To prevent electrical injury while installing or removing DC power supplies, carefully follow the instructions given in “Installing a DC Power Supply in an EX3400 Switch” on page 202 and “Removing a DC Power

Supply from an EX3400 Switch” on page 200.

DC Power Supply Airflow

Each power supply has its own fan and is cooled by its own internal cooling system.

Each power supply has a label AIR OUT on the faceplate of the power supply that indicates the direction of airflow in the power supply.

Table 18 on page 47 lists the DC power supply models and the direction of airflow in them.

Table 18: Airflow Direction in DC Power Supply Models for EX3400 Switches

Direction of AirflowLabel on Power SupplyModel

AIR OUTJPSU-150-DC-AFO

Front-to-back—that is, air intake to cool the chassis is through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis.

DC Power Supply LEDs in EX3400 Switches

Figure 15 on page 48 shows the LEDs on a DC power supply for an EX3400 switch.

Figure 15: LEDs on the DC Power Supply for EX3400 Switches

2—1— IN OK LEDOUT OK LED

Table 19 on page 48 describes the LEDs on the DC power supplies.

Table 19: DC Power Supply LEDs on an EX3400 Switch

DescriptionColorName

UnlitIN OK

UnlitOUT OK

Indicates one of the following:

The power supply is disconnected from the DC power feed.

•

The DC power input voltage is not within the normal operating range.

•

No DC power input.

•

The power supply is receiving power.Green

Indicates one of the following:

IN OK LED is unlit.

•

The power supply is not delivering power correctly.

•

The power supply is functioning correctly.Green

The power supply has failed and must be replaced.Red

Power Specifications for EX3400 Switches

This topic describes the power supply electrical specifications for EX3400 switches.

Table 20 on page 49 provides the AC power supply electrical specifications for EX3400 switches.

Table 20: AC Power Supply Electrical Specifications for EX3400 Switches

SpecificationItem

100 through 240 VACAC input voltage

50 Hz/60 Hz nominalAC input line frequency

AC system current rating

EX3400-24P: 8.5 A at 100 VAC

•

EX3400-24P: 4.25 A at 240 VAC

•

EX3400-24T: 3 A at 100 VAC

•

EX3400-24T: 1.5 A at 240 VAC

•

EX3400-48P: 12 A at 100 VAC

•

EX3400-48P: 6.5 A at 240 VAC

•

EX3400-48T: 3 A at 100 VAC

•

EX3400-48T: 1.5 A at 240 VAC

•

Table 21 on page 49 provides the DC power supply electrical specifications for EX3400 switches.

Table 21: DC Power Supply Electrical Specifications for EX3400 Switches

SpecificationItem

–48 through –60 VDCDC input voltage

4.7 A maximum at –48 VDCDC input current rating

150 WPower supply output

NOTE: For DC power supplies, we recommend that you provide at least 4.7 A at 48 VDC and

use a facility circuit breaker rated for 10 A minimum. Doing so enables you to operate the switch in any configuration without upgrading the power infrastructure, and enables the switch to function at full capacity using multiple power supplies.

CHAPTER

Site Planning, Preparation, and

Specifications

Site Preparation Checklist for EX3400 Switches | 51

EX3400 Site Guidelines and Requirements | 54

EX3400 Network Cable and Transceiver Planning | 65

EX3400 Management Cable Specifications and Pinouts | 74

EX3400 Virtual Chassis | 86

Site Preparation Checklist for EX3400 Switches

The checklist in Table 22 on page 51 summarizes the tasks you need to perform when preparing a site for EX3400 switch installation.

Table 22: Site Preparation Checklist

DatePerformed byFor More InformationItem or Task

Environment

Verify that environmental factors such as temperature and humidity do not exceed switch tolerances.

Power

Measure distance between external power sources and switch installation site.

Locate sites for connection of system grounding.

“Environmental Requirements and Specifications for EX Series Switches” on page 54

Calculate the power consumption and requirements.

“Power Specifications for EX3400 Switches” on page 48

Hardware Configuration

Table 22: Site Preparation Checklist (continued)

“EX3400 Switches Hardware Overview” on page 19Choose the

number and types of switches you want to install.

Rack or Cabinet

DatePerformed byFor More InformationItem or Task

Verify that your rack or cabinet meets the minimum requirements for the installation of the switch.

Plan rack or cabinet location, including required space clearances.

Secure the rack or cabinet to the floor and building structure.

Wall

Rack Requirements on page 60

•

Cabinet Requirements on page 62

•

“Clearance Requirements for Airflow and Hardware

Maintenance for EX3400 Switches” on page 63

Verify that the wall meets the minimum requirements for the installation of the switch.

Verify that there is appropriate clearance in your selected location.

Requirements for Mounting an EX3400 Switch on a

Desktop or Wall

“Clearance Requirements for Airflow and Hardware

Maintenance for EX3400 Switches” on page 63

Table 22: Site Preparation Checklist (continued)

Cables

Acquire cables and connectors:

Determine

•

the number of cables needed based on your planned configuration.

Review the

•

maximum distance allowed for each cable. Choose the length of cable based on the distance between the hardware components being connected.

DatePerformed byFor More InformationItem or Task

Plan the cable routing and management.

EX3400 Site Guidelines and Requirements

IN THIS SECTION

Environmental Requirements and Specifications for EX Series Switches | 54

General Site Guidelines | 59

Site Electrical Wiring Guidelines | 60

Rack Requirements | 60

Cabinet Requirements | 62

Clearance Requirements for Airflow and Hardware Maintenance for EX3400 Switches | 63

Environmental Requirements and Specifications for EX Series Switches

The switch must be installed in a rack or cabinet housed in a dry, clean, well-ventilated, and temperature-controlled environment.

Ensure that these environmental guidelines are followed:

The site must be as dust-free as possible, because dust can clog air intake vents and filters, reducing the

•

efficiency of the switch cooling system.

Maintain ambient airflow for normal switch operation. If the airflow is blocked or restricted, or if the

•

intake air is too warm, the switch might overheat, leading to the switch temperature monitor shutting down the switch to protect the hardware components.

Table 23 on page 55 provides the required environmental conditions for normal switch operation.

Table 23: EX Series Switch Environmental Tolerances

Environment Tolerance

Switch or device SeismicTemperatureRelative HumidityAltitude

EX2200-C

EX2200 (except EX2200-C switches)

EX2300-C

No performance degradation up to 5,000 feet (1524 meters)

No performance degradation up to 10,000 feet (3048 meters)

No performance degradation up to 5,000 feet (1524 meters)

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

Normal operation ensured in the temperature range 32° F (0° C) through 104°

F (40° C) at altitudes up to

5,000 ft (1,524 m).

For information about extended temperature SFP transceivers supported on EX2200 switches, see

Pluggable Transceivers

Supported on EX2200 Switches.

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Normal operation ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

EX2300 (except EX2300-C switches)

EX3200

EX3300

No performance degradation up to 13,000 feet (3962 meters) at 104° F (40° C) as per GR-63

No performance degradation up to 10,000 feet (3048 meters)

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

Table 23: EX Series Switch Environmental Tolerances (continued)

Environment Tolerance

Switch or device SeismicTemperatureRelative HumidityAltitude

EX3400

EX4200

EX4300

The maximum thermal output for EX4300-48T is 423 BTU/hour and for EX4300-48P is 5844 BTU/hour.

No performance degradation up to 10,000 feet (3048 meters)

EX4300 switches except the EX4300-48MP model— No performance degradation up to 10,000 feet (3048 meters)

EX4300-48MP model— No performance degradation up to 6,000 feet (1829 meters)

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

EX4300 switches except the EX4300-48MP model— Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

EX4300-48MP model— Normal operation ensured in the relative humidity range 5% through 90% (noncondensing)

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

EX4500

No performance degradation up to 10,000 feet (3048 meters)

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

Normal operation ensured in the temperature range 32° F (0° C) through 113°

F (45° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

Table 23: EX Series Switch Environmental Tolerances (continued)

Environment Tolerance

Switch or device SeismicTemperatureRelative HumidityAltitude

EX4550

EX4600

No performance degradation up to 10,000 feet (3048 meters)

No performance degradation to 6,562 feet (2000 meters)

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

Normal operation ensured in the relative humidity range 5% through 90%, noncondensing

Short-term operation

•

ensured in the relative humidity range 5% through 93%, noncondensing

NOTE: As defined in

NEBS GR-63-CORE, Issue 4, short-term events can be up to 96 hours in duration but not more than 15 days per year.

EX4550-32F switches—

•

Normal operation ensured in the temperature range 32° F (0° C) through 113° F (45° C)

EX4550-32T switches—

•

Normal operation is ensured in the temperature range 32° F through 104° F (40° C)

Normal operation

•

ensured in the temperature range 32° F (0° C) through 113° F (45° C)

Nonoperating storage

•

temperature in shipping container: – 40° F (–40° C) through 158° F (70° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

Complies with Zone 4 earthquake requirements per NEBS GR-63-CORE, Issue 4.

EX4650

EX6210

No performance degradation to 6,000 feet (1829 meters)

No performance degradation up to 10,000 feet (3048 meters)

Normal operation ensured in the relative humidity range 10% through 85% (condensing)

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

Normal operation is ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Normal operation is ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

Table 23: EX Series Switch Environmental Tolerances (continued)

Environment Tolerance

Switch or device SeismicTemperatureRelative HumidityAltitude

EX8208

EX8216

EX9204

EX9208

No performance degradation up to 10,000 feet (3048 meters)

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

Normal operation ensured in the relative humidity range 5% through 90% (noncondensing)

Normal operation is ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Normal operation is ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Normal operation is ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Nonoperating storage temperature in shipping container: – 40° F (–40° C) to 158° F (70° C)

Normal operation is ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

Complies with Zone 4 earthquake requirements as per GR-63.

EX9214

No performance degradation up to 10,000 feet (3048 meters)

Normal operation ensured in the relative humidity range 5% through 90% (noncondensing)

Nonoperating storage temperature in shipping container: – 40° F (–40° C) to 158° F (70° C)

Normal operation is ensured in the temperature range 32° F (0° C) through 104°

F (40° C)

Nonoperating storage temperature in shipping container: – 40° F (–40° C) through 158° F (70° C)

Complies with Zone 4 earthquake requirements as per GR-63.

Table 23: EX Series Switch Environmental Tolerances (continued)

Environment Tolerance

Switch or device SeismicTemperatureRelative HumidityAltitude

EX9251

The maximum thermal output is 1705 BTU/hour (500 W).

XRE200

No performance degradation up to 10,000 ft (3048 m)

No performance degradation up to 10,000 feet (3048 meters)

Normal operation ensured in relative humidity range of 5% to 90%, noncondensing

Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

Normal operation ensured in temperature range of 32°

F (0° C) to 104° F (40° C)

Nonoperating storage temperature in shipping container: – 40° F (–40° C) to 158° F (70° C)

Normal operation ensured in the temperature range 41° F (5° C) through 104°

F (40° C)

NOTE: Install EX Series switches only in restricted areas, such as dedicated equipment rooms

and equipment closets, in accordance with Articles 110– 16, 110– 17, and 110– 18 of the National Electrical Code, ANSI/NFPA 70.

Complies with Telcordia Technologies Zone 4 earthquake requirements

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

General Site Guidelines

Efficient device operation requires proper site planning and maintenance and proper layout of the equipment, rack or cabinet (if used), and wiring closet.

To plan and create an acceptable operating environment for your device and prevent environmentally caused equipment failures:

Keep the area around the chassis free from dust and conductive material, such as metal flakes.

•

Follow prescribed airflow guidelines to ensure that the cooling system functions properly and that

•

exhaust from other equipment does not blow into the intake vents of the device.

Follow the prescribed electrostatic discharge (ESD) prevention procedures to prevent damaging the

•

equipment. Static discharge can cause components to fail completely or intermittently over time.

Install the device in a secure area, so that only authorized personnel can access the device.

•

Site Electrical Wiring Guidelines

Table 24 on page 60 describes the factors you must consider while planning the electrical wiring at your

site.

WARNING: You must provide a properly grounded and shielded environment and use

electrical surge-suppression devices.

Avertissement Vous devez établir un environnement protégé et convenablement mis à la terre et utiliser des dispositifs de parasurtension.

Table 24: Site Electrical Wiring Guidelines

Site Wiring Factor

Guidelines

Signaling limitations

Radio frequency interference

Electromagnetic compatibility

If your site experiences any of the following problems, consult experts in electrical surge suppression and shielding:

Improperly installed wires cause radio frequency interference (RFI).

•

Damage from lightning strikes occurs when wires exceed recommended distances or pass between

•

buildings.

Electromagnetic pulses (EMPs) caused by lightning damage unshielded conductors and electronic

•

devices.

To reduce or eliminate RFI from your site wiring, do the following:

Use a twisted-pair cable with a good distribution of grounding conductors.

•

If you must exceed the recommended distances, use a high-quality twisted-pair cable with one

•

ground conductor for each data signal when applicable.

If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly from lightning or radio transmitters, seek expert advice.

Some of the problems caused by strong sources of electromagnetic interference (EMI) are:

Destruction of the signal drivers and receivers in the device

•

Electrical hazards as a result of power surges conducted over the lines into the equipment

•

Rack Requirements

You can mount the device on two-post racks or four-post racks.

Rack requirements consist of:

Rack type

•

Mounting bracket hole spacing

•

Rack size and strength

•

Rack connection to the building structure

•

Table 25 on page 61 provides the rack requirements and specifications.

Table 25: Rack Requirements and Specifications

GuidelinesRack Requirement

Rack type

Mounting bracket hole spacing

Rack size and strength

You can mount the device on a rack that provides bracket holes or hole patterns spaced at 1-U (1.75 in. or 4.45 cm) increments and meets the size and strength requirements to support the weight.

A U is the standard rack unit defined by the Electronic Components Industry Association (http://www.ecianow.org).

The holes in the mounting brackets are spaced at 1-U (1.75 in. or 4.45 cm), so that the device can be mounted in any rack that provides holes spaced at that distance.

Ensure that the rack complies with the size and strength standards of a 19-in.

•

rack as defined by the Electronic Components Industry Association (http://www.ecianow.org).

Ensure that the rack rails are spaced widely enough to accommodate the

•

external dimensions of the device chassis. The outer edges of the front mounting brackets extend the width of the chassis to 19 in. (48.2 cm).

The rack must be strong enough to support the weight of the device.

•

Ensure that the spacing of rails and adjacent racks provides for proper clearance

•

around the device and rack.

Rack connection to building structure

Secure the rack to the building structure.

•

If your geographical area is earthquake-prone, secure the rack to the floor.

•

Secure the rack to the ceiling brackets as well as wall or floor brackets for

•

maximum stability.

SEE ALSO

Rack-Mounting and Cabinet-Mounting Warnings | 254

Cabinet Requirements

You can mount the device in a cabinet that contains a 19-in. rack.

Cabinet requirements consist of:

Cabinet size

•

Clearance requirements

•

Cabinet airflow requirements

•

Table 26 on page 62 provides the cabinet requirements and specifications.

Table 26: Cabinet Requirements and Specifications

Cabinet Requirement

Guidelines

Cabinet size

Cabinet clearance

Cabinet airflow requirements

The minimum cabinet size is 36 in. (91.4 cm) depth. Large cabinets improve airflow and

•

reduce chances of overheating.

The outer edges of the front mounting brackets extend the width of the chassis to 19 in.

•

(48.2 cm).

The minimum total clearance inside the cabinet is 30.7 in. (78 cm) between the inside of

•

the front door and the inside of the rear door.

When you mount the device in a cabinet, ensure that ventilation through the cabinet is sufficient to prevent overheating.

Ensure adequate cool air supply to dissipate the thermal output of the device or devices.

•

Ensure that the hot air exhaust of the chassis exits the cabinet without recirculating into

•

the device. An open cabinet (without a top or doors) that employs hot air exhaust extraction from the top ensures the best airflow through the chassis. If the cabinet contains a top or doors, perforations in these elements assist with removing the hot air exhaust.

Install the device in the cabinet in a way that maximizes the open space on the side of the

•

chassis that has the hot air exhaust.

Route and dress all cables to minimize the blockage of airflow to and from the chassis.

•

Ensure that the spacing of rails and adjacent cabinets is such that there is proper clearance

•

around the device and cabinet.

A cabinet larger than the minimum required provides better airflow and reduces the chance

•

of overheating.

Clearance Requirements for Airflow and Hardware Maintenance for EX3400

g022257

13.96 in.

(35.46 cm)

17.36 in.

(44.09 cm)

19.00 in.

(48.26 cm)

Clearance required

for maintenance

24 in. ( 6 0 .96 cm)

Front

(ports)

Rear

Clearance required

for maintenance

24 in. ( 6 0 .96 cm)

Mounting bracket

13.78 in.

(35.00 cm)

15.05 in.

(38.24 cm)

Switches

When planning the site for installing an EX3400 switch, you must allow sufficient clearance around the installed switch (see Figure 16 on page 63).

Figure 16: Clearance Requirements for Airflow and Hardware Maintenance for EX3400 Switches

The power cord retainer extends out of the rear of the chassis by 3 in. (7.62 cm). The fan module handle extends out of the chassis by 1.2 in. (3 cm).

Follow these clearance requirements:

For the cooling system to function properly, the airflow around the chassis must be unrestricted. See

•

Figure 17 on page 64 and Figure 18 on page 65.

Figure 17: Front-to-Back Airflow Through the EX3400 Switch Chassis

Figure 18: Back-to-Front Airflow Through the EX3400 Switch Chassis

If you are mounting an EX3400 switch in a rack or cabinet with other equipment, or if you are placing

•

it on the desktop or floor near other equipment, ensure that the exhaust from other equipment does not blow into the intake vents of the chassis.

Leave at least 24 in. (61 cm) in front of the switch and behind the switch. For service personnel to remove

•

and install hardware components, you must leave adequate space at the front and back of the switch. NEBS GR-63 recommends that you allow at least 30 in. (76.2 cm) in front of the rack or cabinet and 24 in. (61 cm) behind the rack or cabinet.

EX3400 Network Cable and Transceiver Planning

IN THIS SECTION

Pluggable Transceivers Supported on EX3400 Switches | 66

SFP+ Direct Attach Copper Cables for EX Series Switches | 67

QSFP+ Direct Attach Copper Cables for EX Series Switches | 69

Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 70

Calculating the Fiber-Optic Cable Power Budget for EX Series Devices | 72

Calculating the Fiber-Optic Cable Power Margin for EX Series Devices | 72

Pluggable Transceivers Supported on EX3400 Switches

Uplink ports on EX3400 switches support SFP, SFP+, and QSFP+ transceivers. You can find the list of transceivers supported on EX3400 switches and information about those transceivers at the Hardware

Compatibility Tool page for EX3400.

NOTE: We recommend that you use only optical transceivers and optical connectors purchased

from Juniper Networks with your Juniper Networks device.

CAUTION: If you face a problem running a Juniper Networks device that uses a

third-party optic or cable, the Juniper Networks Technical Assistance Center (JTAC) can help you diagnose the source of the problem. Your JTAC engineer might recommend that you check the third-party optic or cable and potentially replace it with an equivalent Juniper Networks optic or cable that is qualified for the device.

The Gigabit Ethernet SFP, SFP+, and QSFP+ transceivers installed in EX3400 switches support digital optical monitoring (DOM): You can view the diagnostic details for these transceivers by issuing the operational mode CLI command show interfaces diagnostics optics.

NOTE: The transceivers support DOM even if they are installed in uplink ports configured as

Virtual Chassis ports.

SEE ALSO

Front Panel of an EX3400 Switch | 28

Install a Transceiver | 126

Remove a Transceiver | 207

SFP+ Direct Attach Copper Cables for EX Series Switches

IN THIS SECTION

Cable Specifications | 67

List of DAC Cables Supported on EX Series Switches | 68

Standards Supported by These Cables | 68

Small form-factor pluggable plus transceiver (SFP+) direct attach copper (DAC) cables, also known as Twinax cables, are suitable for in-rack connections between servers and switches. They are suitable for short distances, making them ideal for highly cost-effective networking connectivity within a rack and between adjacent racks.

NOTE: We recommend that you use only SFP+ DAC cables purchased from Juniper Networks

with your Juniper Networks device.

CAUTION: If you face a problem running a Juniper Networks device that uses a

Cable Specifications

EX Series switches support SFP+ passive DAC cables. The passive Twinax cable is a straight cable with no active electronic components. EX Series switches support 1 m, 3 m, 5 m, and 7 m long SFP+ passive DAC cables. See Figure 19 on page 68.

Figure 19: SFP+ Direct Attach Copper Cables for EX Series Switches

The cables are hot-removable and hot-insertable: You can remove and replace them without powering off the switch or disrupting switch functions. A cable comprises a low-voltage cable assembly that connects directly into two 10-Gigabit Ethernet ports, one at each end of the cable. The cables use high-performance integrated duplex serial data links for bidirectional communication and are designed for data rates of up to 10 Gbps.

List of DAC Cables Supported on EX Series Switches

For the list of DAC cables supported on EX Series switches and the specifications of these cables, see:

EX2300—Hardware Compatibility Tool page for EX2300

•

EX3200—Hardware Compatibility Tool page for EX3200

•

EX3300—Hardware Compatibility Tool page for EX3300

•

EX3400—Hardware Compatibility Tool page for EX3400

•

EX4200—Hardware Compatibility Tool page for EX4200

•

EX4300—Hardware Compatibility Tool page for EX4300

•

EX4500—Hardware Compatibility Tool page for EX4500

•

EX4550—Hardware Compatibility Tool page for EX4550

•

EX4600—Hardware Compatibility Tool page for EX4600

•

EX8208—Hardware Compatibility Tool page for EX8208

•

EX8216—Hardware Compatibility Tool page for EX8216

•

EX9251—Hardware Compatibility Tool page for EX9251

•

EX9253—Hardware Compatibility Tool page for EX9253

•

Standards Supported by These Cables

The cables comply with the following standards:

SFP mechanical standard SFF-843— see ftp://ftp.seagate.com/sff/SFF-8431.PDF.

•

Electrical interface standard SFF-8432— see ftp://ftp.seagate.com/sff/SFF-8432.PDF.

•

SFP+ Multi-Source Alliance (MSA) standards

•

QSFP+ Direct Attach Copper Cables for EX Series Switches

IN THIS SECTION

Cable Specifications | 69

DAC Cables Supported on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253 Switches | 70

Quad small form-factor pluggable plus (QSFP+) direct attach copper (DAC) cables are suitable for in-rack connections between QSFP+ ports on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253 switches. They are suitable for short distances, making them ideal for highly cost-effective networking connectivity within a rack and between adjacent racks.

NOTE: We recommend that you use only QSFP+ DAC cables purchased from Juniper Networks

with your Juniper Networks device.

CAUTION: If you face a problem running a Juniper Networks device that uses a

Cable Specifications

QSFP+ passive DAC cables are hot-removable and hot-insertable. A cable consists of a cable assembly that connects directly into two QSFP+ modules, one at each end of the cable. The cables use integrated duplex serial data links for bidirectional communication and are designed for data rates up to 40 Gbps. Passive DAC cables have no signal amplification built into the cable assembly. See Figure 20 on page 70.

Figure 20: QSFP+ Direct Attach Copper Cables

DAC Cables Supported on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253 Switches

For the list of DAC cables supported on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253 switches and the specifications of these cables, see:

EX3400—Hardware Compatibility Tool page for EX3400

•

EX4300—Hardware Compatibility Tool page for EX4300

•

EX4550—Hardware Compatibility Tool page for EX4550

•

EX4600—Hardware Compatibility Tool page for EX4600

•

EX9251—Hardware Compatibility Tool page for EX9251

•

EX9253—Hardware Compatibility Tool page for EX9253

•

Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion

IN THIS SECTION

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 71

Attenuation and Dispersion in Fiber-Optic Cable | 71

To determine the power budget and power margin needed for fiber-optic connections, you need to understand how signal loss, attenuation, and dispersion affect transmission. EX Series switches use various types of network cable, including multimode and single-mode fiber-optic cable.

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable

Multimode fiber is large enough in diameter to allow rays of light to reflect internally (bounce off the walls of the fiber). Interfaces with multimode optics typically use LEDs as light sources. However, LEDs are not coherent light sources. They spray varying wavelengths of light into the multimode fiber, which reflects the light at different angles. Light rays travel in jagged lines through a multimode fiber, causing signal dispersion. When light traveling in the fiber core radiates into the fiber cladding (layers of lower refractive index material in close contact with a core material of higher refractive index), higher-order mode loss (HOL) occurs. Together, these factors reduce the transmission distance of multimode fiber compared to that of single-mode fiber.

Single-mode fiber is so small in diameter that rays of light reflect internally through one layer only. Interfaces with single-mode optics use lasers as light sources. Lasers generate a single wavelength of light, which travels in a straight line through the single-mode fiber. Compared to multimode fiber, single-mode fiber has a higher bandwidth and can carry signals for longer distances. It is consequently more expensive.

Exceeding the maximum transmission distances can result in significant signal loss, which causes unreliable transmission.

Attenuation and Dispersion in Fiber-Optic Cable

An optical data link functions correctly provided that modulated light reaching the receiver has enough power to be demodulated correctly. Attenuation is the reduction in strength of the light signal during transmission. Passive media components such as cables, cable splices, and connectors cause attenuation. Although attenuation is significantly lower for optical fiber than for other media, it still occurs in both multimode and single-mode transmission. An efficient optical data link must transmit enough light to overcome attenuation.

Dispersion is the spreading of the signal over time. The following two types of dispersion can affect signal transmission through an optical data link:

Chromatic dispersion, which is the spreading of the signal over time caused by the different speeds of

•

light rays.

Modal dispersion, which is the spreading of the signal over time caused by the different propagation

•

modes in the fiber.

For multimode transmission, modal dispersion, rather than chromatic dispersion or attenuation, usually limits the maximum bit rate and link length. For single-mode transmission, modal dispersion is not a factor. However, at higher bit rates and over longer distances, chromatic dispersion limits the maximum link length.

An efficient optical data link must have enough light to exceed the minimum power that the receiver requires to operate within its specifications. In addition, the total dispersion must be within the limits specified for the type of link in Telcordia Technologies document GR-253-CORE (Section 4.3) and International Telecommunications Union (ITU) document G.957.

When chromatic dispersion is at the maximum allowed, its effect can be considered as a power penalty in the power budget. The optical power budget must allow for the sum of component attenuation, power penalties (including those from dispersion), and a safety margin for unexpected losses.

Calculating the Fiber-Optic Cable Power Budget for EX Series Devices

To ensure that fiber-optic connections have sufficient power for correct operation, calculate the link's power budget when planning fiber-optic cable layout and distances to ensure that fiber-optic connections have sufficient power for correct operation. The power budget is the maximum amount of power the link can transmit. When you calculate the power budget, you use a worst-case analysis to provide a margin of error, even though all the parts of an actual system do not operate at the worst-case levels.

To calculate the worst-case estimate for fiber-optic cable power budget (PB) for the link:

1. Determine values for the link's minimum transmitter power (PT) and minimum receiver sensitivity (PR). For example, here, (PT) and (PR) are measured in decibels, and decibels are referred to one milliwatt (dBm).

PT= – 15 dBm

PR= – 28 dBm

NOTE: See the specifications for your transmitter and receiver to find the minimum transmitter

power and minimum receiver sensitivity.

2. Calculate the power budget (PB) by subtracting (PR) from (PT):

– 15 dBm – (–28 dBm) = 13 dBm

Calculating the Fiber-Optic Cable Power Margin for EX Series Devices

Calculate the link's power margin when planning fiber-optic cable layout and distances to ensure that fiber-optic connections have sufficient signal power to overcome system losses and still satisfy the minimum

input requirements of the receiver for the required performance level. The power margin (PM) is the amount of power available after attenuation or link loss (LL) has been subtracted from the power budget (PB).

When you calculate the power margin, you use a worst-case analysis to provide a margin of error, even though all the parts of an actual system do not operate at worst-case levels. A power margin (PM) greater

than zero indicates that the power budget is sufficient to operate the receiver and that it does not exceed the maximum receiver input power. This means the link will work. A (PM) that is zero or negative indicates

insufficient power to operate the receiver. See the specification for your receiver to find the maximum receiver input power.

Before calculating the power margin:

Calculate the power budget (see “Calculating the Fiber-Optic Cable Power Budget for EX Series Devices”

•

on page 72).

To calculate the worst-case estimate for the power margin (PM) for the link:

1. Determine the maximum value for link loss (LL) by adding estimated values for applicable link-loss factors—for example, use the sample values for various factors as provided in Table 27 on page 73 (here, the link is 2 km long and multimode, and the (PB) is 13 dBm):

Table 27: Estimated Values for Factors Causing Link Loss

Higher-order mode losses (HOL)

Modal and chromatic dispersion

Multimode—0.5 dBm

•

Single mode—None

•

Multimode—None, if product of

•

bandwidth and distance is less than 500 MHz/km

Single mode—None

•

0.5 dBmConnector

0.5 dBmSplice

Sample (LL) Calculation ValuesEstimated Link-Loss ValueLink-Loss Factor

0.5 dBm

•

0 dBm

•

0 dBm

•

0 dBm

•

This example assumes 5 connectors. Loss for 5 connectors:

(5) * (0.5 dBm) = 2.5 dBm

This example assumes 2 splices. Loss for two splices:

(2) * (0.5 dBm) = 1 dBm

Fiber attenuation

Multimode—1 dBm/km

•

Single mode—0.5 dBm/km

•

This example assumes the link is 2 km long. Fiber attenuation for 2 km:

(2 km) * (1.0 dBm/km) = 2 dBm

•

(2 km) * (0.5 dBm/km) = 1 dBm

•

Table 27: Estimated Values for Factors Causing Link Loss (continued)

NOTE: For information about the actual amount of signal loss caused by equipment and

other factors, see your vendor documentation for that equipment.

2. Calculate the (PM) by subtracting (LL) from (PB):

Sample (LL) Calculation ValuesEstimated Link-Loss ValueLink-Loss Factor

1 dBm1 dBmClock Recovery Module (CRM)

PB– LL = P

(13 dBm) – (0.5 dBm [HOL]) – ((5) * (0.5 dBm)) – ((2) * (0.5 dBm)) – ((2 km) * (1.0 dBm/km)) – (1 dB [CRM]) = P

13 dBm – 0.5 dBm – 2.5 dBm – 1 dBm – 2 dBm – 1 dBm = P

PM= 6 dBm

The calculated power margin is greater than zero, indicating that the link has sufficient power for transmission. Also, the power margin value does not exceed the maximum receiver input power. Refer to the specification for your receiver to find the maximum receiver input power.

EX3400 Management Cable Specifications and Pinouts

IN THIS SECTION

Management Cable Specifications | 75

Console Port Connector Pinout Information | 75

RJ-45 Management Port Connector Pinout Information | 76

USB Port Specifications for an EX Series Switch | 77

RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout Information | 77

SFP+ Uplink Port Connector Pinout Information for an EX3400 Switch | 82

QSFP+ Uplink Port Connector Pinout Information for an EX3400 Switch | 83

RJ-45 to DB-9 Serial Port Adapter Pinout Information | 85

Management Cable Specifications

Table 28 on page 75 lists the specifications for the cables that connect the console and management ports

to management devices.

Table 28: Specifications of Cables to Connect to Management Devices

Additional InformationReceptacleCable SpecificationsPorts

RJ-45 Console port

Management Ethernet port

Mini-USB Type-B Console port

RJ-45CAT5e UTP (unshielded

twisted pair) cable

RJ-45Ethernet cable with an

RJ-45 connector

Mini-USBMini-USB cable with standard-A and Mini-USB Type-B (5-pin) connector

“Connect a Device to a Management Console Using an RJ-45 Connector” on page 123

“Connect a Device to a Network for Out-of-Band Management” on page 122

Console Port Connector Pinout Information

The console port on a Juniper Networks device is an RS-232 serial interface that uses an RJ-45 connector to connect to a console management device. The default baud rate for the console port is 9600 baud.

Table 29 on page 75 provides the pinout information for the RJ-45 console connector.

NOTE: If your laptop or desktop PC does not have a DB-9 plug connector pin and you want to

connect your laptop or desktop PC directly to a device, use a combination of the RJ-45 to DB-9 socket adapter and a USB to DB-9 plug adapter. You must provide the USB to DB-9 plug adapter.

Table 29: Console Port Connector Pinout Information

DescriptionSignalPin

Request to sendRTS Output1

Data terminal readyDTR Output2

Table 29: Console Port Connector Pinout Information (continued)

DescriptionSignalPin

Transmit dataTxD Output3

Signal groundSignal Ground4

Signal groundSignal Ground5

Receive dataRxD Input6

Data carrier detectCD Input7

CTS InputNC8

RJ-45 Management Port Connector Pinout Information

Table 30 on page 76 provides the pinout information for the RJ-45 connector for the management port

on Juniper Networks devices.

Table 30: RJ-45 Management Port Connector Pinout Information

DescriptionSignalPin

Transmit/receive data pair 1TRP1+1

Transmit/receive data pair 1TRP1—2

Transmit/receive data pair 2TRP2+3

Transmit/receive data pair 3TRP3+4

Transmit/receive data pair 3TRP3—5

Transmit/receive data pair 2TRP2—6

Transmit/receive data pair 4TRP4+7

Transmit/receive data pair 4TRP4—8

USB Port Specifications for an EX Series Switch

The following Juniper Networks USB flash drives have been tested and are officially supported for the USB port on all EX Series switches:

RE-USB-1G-S

•

RE-USB-2G-S

•

RE-USB-4G-S

•

CAUTION: Any USB memory product not listed as supported for EX Series switches

has not been tested by Juniper Networks. The use of any unsupported USB memory product could expose your EX Series switch to unpredictable behavior. Juniper Networks Technical Assistance Center (JTAC) can provide only limited support for issues related to unsupported hardware. We strongly recommend that you use only supported USB flash drives.

All USB flash drives used on EX Series switches must have the following features:

USB 2.0 or later.

•

Formatted with a FAT or MS-DOS file system.

•

If the switch is running Junos OS Release 9.5 or earlier, the formatting method must use a primary boot

•

record. Microsoft Windows formatting, by default, does not use a primary boot record. See the documentation for your USB flash drive for information about how your USB flash drive is formatted.

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

The tables in this topic describe the connector pinout information for the RJ-45, QSFP+, QSFP28, SFP+, and SFP ports.

Table 31 on page 78—10/100/1000BASE-T Ethernet network port connector pinout information

•

Table 32 on page 78—SFP network port connector pinout information

•

Table 33 on page 79—SFP+ network port connector pinout information

•

Table 34 on page 80—QSFP+ and QSFP28 network module ports connector pinout information

•

Table 31: 10/100/1000BASE-T Ethernet Network Port Connector Pinout Information

DescriptionSignalPin

TRP1+1

TRP1-2

TRP2+3

TRP2-6

Transmit/receive data pair 1

Negative Vport (in PoE models)

Transmit/receive data pair 1

Negative Vport (in PoE models)

Transmit/receive data pair 2

Positive Vport (in PoE models)

Transmit/receive data pair 3TRP3+4

Transmit/receive data pair 3TRP3-5

Transmit/receive data pair 2

Positive Vport (in PoE models)

Transmit/receive data pair 4TRP4+7

Transmit/receive data pair 4TRP4-8

Table 32: SFP Network Port Connector Pinout Information

DescriptionSignalPin

Module transmitter groundVeeT1

Module transmitter faultTX_Fault2

Transmitter disabledTX_Disable3

2-wire serial interface data lineSDA4

2-wire serial interface clockSCL-5

Module absentMOD_ABS6

Rate selectRS7

Receiver loss of signal indicationRX_LOS8

Table 32: SFP Network Port Connector Pinout Information (continued)

DescriptionSignalPin

Module receiver groundVeeR9

Module receiver groundVeeR10

Module receiver groundVeeR11

Receiver inverted data outputRD-12

Receiver noninverted data outputRD+13

Module receiver groundVeeR14

Module receiver 3.3 V supplyVccR15

Module transmitter 3.3 V supplyVccT16

Module transmitter groundVeeT17

Transmitter noninverted data inputTD+18

Transmitter inverted data inputTD-19

Module transmitter groundVeeT20

Table 33: SFP+ Network Port Connector Pinout Information

DescriptionSignalPin

Module transmitter groundVeeT1

Module transmitter faultTX_Fault2

Transmitter disabledTX_Disable3

2-wire serial interface data lineSDA4

2-wire serial interface clockSCL-5

Module absentMOD_ABS6

Rate select 0, optionally controls SFP+ module receiverRS07

Table 33: SFP+ Network Port Connector Pinout Information (continued)

DescriptionSignalPin

Receiver loss of signal indicationRX_LOS8

Rate select 1, optionally controls SFP+ transmitterRS19

Module receiver groundVeeR10

Module receiver groundVeeR11

Receiver inverted data outputRD-12

Receiver noninverted data outputRD+13

Module receiver groundVeeR14

Module receiver 3.3-V supplyVccR15

Module transmitter 3.3-V supplyVccT16

Module transmitter groundVeeT17

Transmitter noninverted data inputTD+18

Transmitter inverted data inputTD-19

Module transmitter groundVeeT20

Table 34: QSFP+ and QSFP28 Network Port Connector Pinout Information

SignalPin

GND1

TX2n2

TX2p3

GND4

TX4n5

TX4p6

Table 34: QSFP+ and QSFP28 Network Port Connector Pinout Information (continued)

SignalPin

GND7

ModSelL8

LPMode_Reset9

VccRx10

SCL11

SDA12

GND13

RX3p14

RX3n15

GND16

RX1p17

RX1n18

GND19

GND20

RX2n21

RX2p22

GND23

RX4n24

RX4p25

GND26

ModPrsL27

Table 34: QSFP+ and QSFP28 Network Port Connector Pinout Information (continued)

SignalPin

IntL28

VccTx29

Vcc130

Reserved31

GND32

TX3p33

TX3n34

GND35

TX1p36

TX1n37

GND38

SFP+ Uplink Port Connector Pinout Information for an EX3400 Switch

EX3400 switches have four uplink ports that support 1-gigabit SFP transceivers and 10-gigabit SFP+ transceivers.

Table 35 on page 82 provides the pinout information for the SFP+ uplink port connector.

Table 35: Connector Pinout Information for the 10-Gigabit Ethernet Uplink Port

DescriptionSignalPin

Module transmitter groundVeeT1

Module transmitter faultTX_Fault2

Transmitter disabledTX_Disable3

Table 35: Connector Pinout Information for the 10-Gigabit Ethernet Uplink Port (continued)

DescriptionSignalPin

2-wire serial interface data lineSDA4

2-wire serial interface clockSCL-5

Module absentMOD_ABS6

Rate select 0, optionally controls SFP+ module receiverRS07

Receiver loss of signal indicationRX_LOS8

Rate select 1, optionally controls SFP+ transmitterRS19

Module receiver groundVeeR10

Module receiver groundVeeR11

Receiver inverted data outputRD-12

Receiver noninverted data outputRD+13

Module receiver groundVeeR14

Module receiver 3.3 V supplyVccR15

Module transmitter 3.3 V supplyVccT16

Module transmitter groundVeeT17

Transmitter noninverted data inputTD+18

Transmitter inverted data inputTD-19

Module transmitter groundVeeT20

QSFP+ Uplink Port Connector Pinout Information for an EX3400 Switch

EX3400 switches have two 40-Gigabit Ethernet uplink ports that support 40-gigabit QSFP+ transceivers.

Table 36 on page 84 provides the pinout information for the QSFP+ uplink port connector.

Table 36: Connector Pinout Information for the 40-Gigabit Ethernet Uplink Port

SignalPin

GND1

TX2n2

TX2p3

GND4

TX4n5

TX4p6

GND7

ModSelL8

LPMode_Reset9

VccRx10

SCL11

SDA12

GND13

RX3p14

RX3n15

GND16

RX1p17

RX1n18

GND19

GND20

RX2n21

Table 36: Connector Pinout Information for the 40-Gigabit Ethernet Uplink Port (continued)

SignalPin

RX2p22

GND23

RX4n24

RX4p25

GND26

ModPrsL27

IntL28

VccTx29

Vcc130

Reserved31

GND32

TX3p33

TX3n34

GND35

TX1p36

TX1n37

GND38

RJ-45 to DB-9 Serial Port Adapter Pinout Information

The console port is an RS-232 serial interface that uses an RJ-45 connector to connect to a management device such as a laptop or a desktop PC. If your laptop or desktop PC does not have a DB-9 plug connector

pin and you want to connect your laptop or desktop PC to the device, use a combination of the RJ-45 to DB-9 socket adapter along with a USB to DB-9 plug adapter.

Table 37 on page 86 provides the pinout information for the RJ-45 to DB-9 serial port adapter.

Table 37: RJ-45 to DB-9 Serial Port Adapter Pinout Information

SignalDB-9 PinSignalRJ-45 Pin

CTS8RTS1

DSR6DTR2

RxD2TxD3

GND5GND4

TxD3RxD6

EX3400 Virtual Chassis

IN THIS SECTION

Planning EX3400 Virtual Chassis | 87

Understanding EX3400 Virtual Chassis Hardware Configuration | 87

Virtual Chassis Cabling Configuration Examples for EX3400 Switches | 88

DTR4DSR7

RTS7CTS8

Planning EX3400 Virtual Chassis

Before interconnecting EX3400 switches in a Virtual Chassis configuration, you must consider the following factors:

The number of switches in the Virtual Chassis and their location—You can interconnect a maximum of

•

10 EX3400 switches to form a Virtual Chassis composed exclusively of EX3400 switches.

Mounting—You can mount the switches in a single rack or install them on multiple racks. For information

•

about the size and strength of racks, see “Rack Requirements” on page 60.

Cabling requirements for Virtual Chassis—You can interconnect EX3400 switches into a Virtual Chassis

•

by using the uplink ports configured as Virtual Chassis ports (VCPs). By default, the QSFP+ uplink ports are configured as VCPs.

For information about uplink port cabling requirements, see “Management Cable Specifications” on

page 75.

Power requirements—You must plan the installation site to meet the power requirements of the switches

•

in a Virtual Chassis. See “Power Specifications for EX3400 Switches” on page 48.

License requirements—You must have license keys for all the devices. See Understanding Software Licenses

•

for EX Series Switches.

SEE ALSO

Clearance Requirements for Airflow and Hardware Maintenance for EX3400 Switches | 63

Understanding EX3400 Virtual Chassis Hardware Configuration

Virtual Chassis is a feature in Juniper Networks EX3400 Ethernet Switches that allows you to interconnect two or more EX3400 switches, enabling them to operate as a unified, single, high-bandwidth switch. You can interconnect a maximum of 10 EX3400 switches by using the uplink ports configured as Virtual Chassis ports (VCPs) to form a Virtual Chassis. By default, the QSFP+ uplink ports are configured as VCPs.

All EX3400 switch models support Virtual Chassis, and you can interconnect different models, which allows you to choose among a range of possible port configurations within the same Virtual Chassis.

The Virtual Chassis configuration includes a primary switch and a backup switch, with all other switches in the configuration designated as linecard member switches. Virtual Chassis operation is managed through the primary switch. Each switch in the Virtual Chassis is assigned a unique member ID.

Virtual Chassis Cabling Configuration Examples for EX3400 Switches

g022267

You can install EX3400 switches on a single rack or in multiple racks, or in different wiring closets, and interconnect them to form a Virtual Chassis.

You form an EX3400 Virtual Chassis by using uplink ports configured as Virtual Chassis ports (VCPs). By default, the QSFP+ uplink ports are configured as VCPs.

The physical location of the switches in a Virtual Chassis is restricted only by the maximum length supported for cables to connect the VCPs—in this case, the maximum length of the uplink port cables. For the maximum cable length for the uplink port cables supported by an EX3400 switch, see “Pluggable Transceivers

Supported on EX3400 Switches” on page 66.

The following illustrations show examples of Virtual Chassis cabling configuration using SFP+ ports. The examples are applicable to configuration using QSFP+ ports also.

NOTE: For increased availability and redundancy, we recommend that you always configure

your Virtual Chassis in a ring topology.

Figure 21 on page 88, Figure 22 on page 89, and Figure 23 on page 89 show six EX3400 switches stacked

vertically in a rack and interconnected in a ring topology.

Figure 21: EX3400 Switches Mounted on a Single Rack and Connected in a Ring Topology: Example 1

Figure 22: EX3400 Switches Mounted on a Single Rack and Connected in a Ring Topology: Example 2

g022268

Figure 23: EX3400 Switches Mounted on a Single Rack and Connected in a Ring Topology: Example 3

Figure 24 on page 89 and Figure 25 on page 90 show six EX3400 switches mounted on the top rows of

adjacent racks and interconnected in a ring topology.

Figure 24: EX3400 Switches Mounted on Adjacent Racks and Connected in a Ring Topology Using Medium and Long Cables: Example 1

Figure 25: EX3400 Switches Mounted on Adjacent Racks and Connected in a Ring Topology Using Medium

g022271

and Long Cables: Example 2

CHAPTER

Initial Installation and Configuration

Unpacking and Mounting the EX3400 Switch | 92

Connecting the EX3400 to Power | 108

Connecting the EX3400 to External Devices | 122

Connecting the EX3400 to the Network | 126

Configuring Junos OS on the EX3400 | 130

Dashboard for EX Series Switches | 164

Unpacking and Mounting the EX3400 Switch

IN THIS SECTION

Unpacking an EX3400 Switch | 92

Parts Inventory (Packing List) for an EX3400 Switch | 93

Installing and Connecting an EX3400 Switch | 95

Installing and Removing EX3400 Switch Hardware Components | 96

Mounting an EX3400 Switch on a Desk or Other Level Surface | 96

Mounting an EX3400 Switch on Two Posts in a Rack or Cabinet | 98

Mounting an EX3400 Switch on Four Posts in a Rack or Cabinet | 101

Mounting an EX3400 Switch in a Recessed Position in a Rack or Cabinet | 104

Mounting an EX3400 Switch on a Wall | 105

Unpacking an EX3400 Switch

The EX3400 switches are shipped in a cardboard carton, secured with foam packing material. The carton also contains an accessory box.

CAUTION: EX3400 switches are maximally protected inside the shipping carton. Do

not unpack the switches until you are ready to begin installation.

To unpack the switch:

1. Move the shipping carton to a staging area as close to the installation site as possible, but where you have enough room to remove the system components.

2. Position the carton so that the arrows are pointing up.

3. Open the top flaps on the shipping carton.

4. Remove the accessory box and verify the contents in it against the parts inventory on the label attached to the carton.

5. Pull out the packing material holding the switch in place.

6. Verify the chassis components received against the packing list included with the switch. An inventory of parts provided with the switch is provided in “Parts Inventory (Packing List) for an EX3400 Switch”

on page 93.

7. Save the shipping carton and packing materials in case you need to move or ship the switch later.

Parts Inventory (Packing List) for an EX3400 Switch

The EX3400 switches are shipped in a cardboard carton, secured with foam packing material. The carton also contains an accessory box.

The switch shipment includes a packing list. Check the parts you receive in the switch shipping carton against the items on the packing list. The parts shipped depend on the configuration you order.

If any part on the packing list is missing, contact your customer service representative or contact Juniper customer care from within the U.S. or Canada by telephone at 1-888-314-5822. For international-dial or direct-dial options in countries without toll-free numbers, see

https://www.juniper.net/support/requesting-support.html.

Table 38 on page 93 lists the parts and their quantities in the packing list.

Table 38: Parts List for an EX3400 Switch

QuantityComponent

1Switch with one power supply and two fan modules

1AC power cord appropriate for your geographical location (only for AC switch models)

1Power cord retainer clip (only for AC switch models)

2Mounting brackets

8Mounting screws to attach the mounting brackets to the switch chassis

4Rubber feet

1RJ-45 cable and RJ-45 to DB-9 serial port adapter

1Documentation Roadmap

Table 38: Parts List for an EX3400 Switch (continued)

NOTE: You must provide mounting screws that are appropriate for your rack or cabinet to mount

the chassis on a rack or a cabinet.

Register Products—Mandatory to Validate SLAs

QuantityComponent

1Juniper Networks Product Warranty

1End User License Agreement

Register all new Juniper Networks hardware products and changes to an existing installed product using the Juniper Networks website to activate your hardware replacement service-level agreements (SLAs).

CAUTION: Register product serial numbers on the Juniper Networks website and

update the installation base data if there is any addition or change to the installation base or if the installation base is moved. Juniper Networks will not be held accountable for not meeting the hardware replacement service-level agreement for products that do not have registered serial numbers or accurate installation base data.

https://www.juniper.net/customers/csc/management/updateinstallbase.jsp.

Installing and Connecting an EX3400 Switch

To install and connect an EX3400 switch:

1. Follow instructions in “Unpacking an EX3400 Switch” on page 92.

2. Mount the switch by following instructions appropriate for your site:

“Mounting an EX3400 Switch on a Desk or Other Level Surface” on page 96 (using the rubber feet

•

provided)

“Mounting an EX3400 Switch on Two Posts in a Rack or Cabinet” on page 98 (using the mounting

•

brackets provided)

“Mounting an EX3400 Switch on Four Posts in a Rack or Cabinet” on page 101 (using the separately

•

orderable four-post rack-mount kit)

“Mounting an EX3400 Switch in a Recessed Position in a Rack or Cabinet” on page 104 (using the

•

2-in.-recess front-mounting brackets from the separately orderable four-post rack-mount kit)

“Mounting an EX3400 Switch on a Wall” on page 105 (using the separately orderable wall-mount kit)

•

3. Follow instructions in “Connect Earth Ground to an EX Series Switch” on page 109.

4. Follow instructions in “Connecting AC Power to an EX3400 Switch” on page 116 or “Connecting DC

Power to an EX3400 Switch” on page 118.

5. Perform initial configuration of the switch by following instructions in “Connecting and Configuring an

EX Series Switch (CLI Procedure)” on page 150.

6. Set the switch’s management options by following the appropriate instructions:

Connect a Device to a Network for Out-of-Band Management on page 122

•

Connect a Device to a Management Console Using an RJ-45 Connector on page 123

•

SEE ALSO

Rack Requirements | 60

Cabinet Requirements | 62 Clearance Requirements for Airflow and Hardware Maintenance for EX3400 Switches | 63

Installing and Removing EX3400 Switch Hardware Components

The EX3400 switch chassis is a rigid sheet-metal structure that houses the hardware components. The field-replaceable units (FRUs) in EX3400 switches are:

Power supplies

•

Fan modules

•

Transceivers

•

The power supplies and fan modules are hot-removable and hot-insertable: You can remove and replace them without powering off the switch or disrupting switch functions.

See these topics for instructions for installing and removing components:

Installing an AC Power Supply in an EX3400 Switch on page 199

•

Removing an AC Power Supply from an EX3400 Switch on page 197

•

Installing a Fan Module in an EX3400 Switch on page 195

•

Removing a Fan Module from an EX3400 Switch on page 194

•

Installing a DC Power Supply in an EX3400 Switch on page 202

•

Removing a DC Power Supply from an EX3400 Switch on page 200

•

Install a Transceiver on page 126

•

Remove a Transceiver on page 207

•

SEE ALSO

EX3400 Cooling System | 38

AC Power Supply in EX3400 Switches | 41 Pluggable Transceivers Supported on EX3400 Switches | 66

Mounting an EX3400 Switch on a Desk or Other Level Surface

You can mount an EX3400 switch on a desk or other level surface by using the four rubber feet that are shipped with the switch. The rubber feet stabilize the chassis.

Before mounting the switch on a desk or other level surface:

Verify that the site meets the requirements described in “Site Preparation Checklist for EX3400 Switches”

•

on page 51.

Place the desk in its permanent location, allowing adequate clearance for airflow and maintenance, and

•

secure it to the building structure.

Read “General Safety Guidelines and Warnings” on page 242, with particular attention to “Chassis and

•

Component Lifting Guidelines” on page 249.

Ensure that you have the following parts and tools available:

4 rubber feet to stabilize the chassis on a desk or other level surface (provided in the accessory box in

•

the switch carton)

To mount a switch on a desk or other level surface:

1. Remove the switch from the shipping carton (see “Unpacking an EX3400 Switch” on page 92).

2. Turn the chassis upside down on the desk or the level surface where you intend to mount the switch.

3. Attach the rubber feet to the bottom of the chassis, as shown in Figure 26 on page 97.

4. Turn the chassis right side up on the desk or the level surface.

5. Ensure that the switch rests firmly on the desk or the level surface.

Figure 26: Attaching Rubber Feet to a Switch Chassis

1—Rubber feet

SEE ALSO

Connecting AC Power to an EX3400 Switch | 116

Connecting DC Power to an EX3400 Switch | 118

Connecting and Configuring an EX Series Switch (CLI Procedure) | 150 Clearance Requirements for Airflow and Hardware Maintenance for EX3400 Switches | 63

Mounting an EX3400 Switch on Two Posts in a Rack or Cabinet

You can mount an EX3400 switch on two posts of a 19-in. rack or cabinet by using the mounting brackets provided with the switch. (The remainder of this topic uses rack to mean rack or cabinet.)

You can mount the switch on four posts of a four-post rack by using the mounting brackets provided with the separately orderable four-post rack-mount kit. See “Mounting an EX3400 Switch on Four Posts in a

Rack or Cabinet” on page 101.

NOTE: If you need to mount the switch in a recessed position on either a two-post rack or a

four-post rack, you can use the 2-in.-recess front-mounting brackets provided in the separately orderable four-post rack-mount kit.

Before mounting the switch on two posts in a rack:

Verify that the site meets the requirements described in “Site Preparation Checklist for EX3400 Switches”

•

on page 51.

Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and

•

secure it to the building structure.

Read “General Safety Guidelines and Warnings” on page 242, with particular attention to “Chassis and

•

Component Lifting Guidelines” on page 249.

Ensure that you have the following parts and tools available:

Phillips (+) screwdriver, number 2 (not provided)

•

2 mounting brackets and 8 mounting screws (provided)

•

Screws to secure the chassis to the rack (not provided)

•

2-in.-recess front-mounting brackets (from the separately orderable four-post rack-mount kit) if you will

•

mount the switch in a recessed position

NOTE: One person must be available to lift the switch while another secures the switch to the

rack.

CAUTION: If you are mounting multiple units on a rack, mount the heaviest unit at

g021209

the bottom of the rack and mount the other units from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount the switch on two posts in a rack:

1. Remove the switch from the shipping carton (see “Unpacking an EX3400 Switch” on page 92).

2. Place the switch on a flat, stable surface.

3. Align the mounting brackets along the front or rear of the side panels of the switch chassis depending on how you want to mount the switch. For example, if you want to front-mount the switch, align the brackets along the front of the chassis. See Figure 27 on page 99.

Figure 27: Attaching the Mounting Bracket Along the Front of the Switch

NOTE: If you need to mount the switch in a recessed position, use the 2-in.-recess

front-mounting brackets from the separately orderable four-post rack-mount kit.

4. Align the bottom holes in the mounting brackets with the holes on the side panels of the switch chassis.

5. Insert the mounting screws into the aligned holes.

6. Ensure that the other holes in the mounting brackets are aligned with the holes in the side panels. Insert a screw in each hole and tighten the screws.

7. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the mounting bracket holes with the threaded holes in the rack or cabinet rail. Align the bottom hole in each mounting bracket with a hole in each rack rail, making sure the chassis is level. See

Figure 28 on page 100.

Figure 28: Mounting the Switch on Two Posts in a Rack

100

8. Have a second person secure the switch to the rack by using the appropriate screws. Tighten the screws.

9. Ensure that the switch chassis is level by verifying that all screws on one side of the rack are aligned with the screws on the other side.

SEE ALSO

Connect Earth Ground to an EX Series Switch | 109

Connecting AC Power to an EX3400 Switch | 116

Connecting DC Power to an EX3400 Switch | 118

Connecting and Configuring an EX Series Switch (CLI Procedure) | 150

Mounting an EX3400 Switch in a Recessed Position in a Rack or Cabinet | 104 Rack-Mounting and Cabinet-Mounting Warnings | 254

Juniper EX3400 Hardware Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

About the Documentation

Documentation and Release Notes

Using the Examples in This Manual

Merging a Full Example

Merging a Snippet

Documentation Conventions

Documentation Feedback

Requesting Technical Support

Self-Help Online Tools and Resources

Creating a Service Request with JTAC

Overview

EX3400 System Overview

EX3400 Switches Hardware Overview

Benefits of the EX3400 Switch

EX3400 Switches First View

Uplink Ports

Virtual Chassis

Console Ports

Power over Ethernet Ports

EX3400 Switch Models

EX3400 Switch Hardware and CLI Terminology Mapping

Chassis Physical Specifications for EX3400 Switches

Field-Replaceable Units in EX3400 Switches

EX3400 Chassis

Front Panel of an EX3400 Switch

Rear Panel of an EX3400 Switch

Chassis Status LEDs in EX3400 Switches

Management Port LEDs in EX3400 Switches

RJ-45 Network Port and Uplink Port LEDs in EX3400 Switches

EX3400 Cooling System

Airflow Direction in EX3400 Switch Models

Front-to-Back Airflow

Back-to-Front Airflow

EX3400 Power System

AC Power Supply in EX3400 Switches

AC Power Supply LEDs in EX3400 Switches

AC Power Cord Specifications for EX3400 Switches

DC Power Supply in EX3400 Switches

Characteristics of a DC Power Supply

DC Power Supply Airflow

DC Power Supply LEDs in EX3400 Switches

Power Specifications for EX3400 Switches

Site Preparation Checklist for EX3400 Switches

EX3400 Site Guidelines and Requirements

Environmental Requirements and Specifications for EX Series Switches

General Site Guidelines

Site Electrical Wiring Guidelines

Rack Requirements

Cabinet Requirements

EX3400 Network Cable and Transceiver Planning

Pluggable Transceivers Supported on EX3400 Switches

SFP+ Direct Attach Copper Cables for EX Series Switches

Cable Specifications

List of DAC Cables Supported on EX Series Switches

Standards Supported by These Cables

QSFP+ Direct Attach Copper Cables for EX Series Switches

Cable Specifications

DAC Cables Supported on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253 Switches

Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable

Attenuation and Dispersion in Fiber-Optic Cable

Calculating the Fiber-Optic Cable Power Budget for EX Series Devices

Calculating the Fiber-Optic Cable Power Margin for EX Series Devices

EX3400 Management Cable Specifications and Pinouts

Management Cable Specifications

Console Port Connector Pinout Information

RJ-45 Management Port Connector Pinout Information

USB Port Specifications for an EX Series Switch

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

SFP+ Uplink Port Connector Pinout Information for an EX3400 Switch

QSFP+ Uplink Port Connector Pinout Information for an EX3400 Switch

RJ-45 to DB-9 Serial Port Adapter Pinout Information

EX3400 Virtual Chassis

Planning EX3400 Virtual Chassis

Understanding EX3400 Virtual Chassis Hardware Configuration