Juniper EX4650 Series Istruzioni per l'installazione

EX4650 Switch Hardware Guide

Published

2019-10-10

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.

EX4650 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.

Table of Contents

About the Documentation | ix

Documentation and Release Notes | ix

Using the Examples in This Manual | ix

Merging a Full Example | x

Merging a Snippet | xi

Documentation Conventions | xi

Documentation Feedback | xiv

Requesting Technical Support | xiv

Self-Help Online Tools and Resources | xv

Creating a Service Request with JTAC | xv

Overview

EX4650 Switches System Overview | 19

EX4650 Switches Hardware Overview | 19

Benefits of the EX4650 Switch | 20

Software | 20

EX4650 Switch First View | 20

Power Supplies | 23

Cooling System | 24

EX4650 Switch Models | 25

Identifying EX4650 Switch Models | 26

Chassis Physical Specifications for EX4650 Switches | 28

Field-Replaceable Units in EX4650 Switches | 28

EX4650 Chassis | 29

Chassis Status LEDs on EX4650 Switches | 29

Management Port LEDs on EX4650 Switches | 31

Access Port and Uplink Port LEDs on EX4650 Switches | 31

EX4650 Cooling System | 33

Fan Modules | 34

Airflow Direction in EX4650 Switch Models | 35

iii

Front-to-Back Airflow | 36

Back-to-Front Airflow | 37

Do Not Mix AIR IN (AFI) and AIR OUT (AFO) Components in the Switch | 38

Positioning the Switch | 39

Fan Module Status | 39

EX4650 Power System | 40

AC Power Supply in EX4650 Switches | 40

DC Power Supply in EX4650 Switches | 41

Airflow Direction in Power Supplies | 42

AC Power Supply Specifications for EX4650 Switches | 43

AC Power Cord Specifications for EX4650 Switches | 44

AC Power Supply LEDs in EX4650 Switches | 46

DC Power Supply in EX4650 Switches | 47

Characteristics of a DC Power Supply | 48

DC Power Supply Airflow | 49

DC Power Supply in EX4650 Switches | 50

Airflow Direction in Power Supplies | 51

EX4650 DC Power Specifications | 53

DC Power Supply LEDs in EX4650 Switches | 53

Site Planning, Preparation, and Specifications

Site Preparation Checklist for EX4650 Switches | 57

EX4650 Site Guidelines and Requirements | 58

Environmental Requirements and Specifications for EX4650 Switches | 58

General Site Guidelines | 60

Site Electrical Wiring Guidelines | 60

Rack Requirements for EX4650 Switches | 61

Cabinet Requirements for EX4650 Switches | 62

Clearance Requirements for Airflow and Hardware Maintenance for EX4650 Switches | 63

EX4650 Network Cable and Transceiver Planning | 65

Pluggable Transceivers Supported on EX4650 Switches | 65

SFP28 Direct Attach Copper Cables for EX4650 Switches | 66

Cable Specifications | 67

Standards Supported by These Cables | 67

QSFP28 Direct Attach Copper Cables for EX4650 Switches | 68

Cable Specifications | 68

Calculating the Fiber-Optic Cable Power Budget for EX Series Devices | 69

Calculating the Fiber-Optic Cable Power Margin for EX Series Devices | 69

EX4650 Management Cable Specifications and Pinouts | 71

Console Port Connector Pinout Information | 71

RJ-45 Management Port Connector Pinout Information | 72

RJ-45 to DB-9 Serial Port Adapter Pinout Information | 73

QSFP+, QSFP28, SFP, SFP+, and SFP28 Port Connector Pinout Information | 73

Initial Installation and Configuration

Unpacking and Mounting the EX4650 Switch | 81

Unpacking the Switch | 81

Parts Inventory (Packing List) for an EX4650 Switch | 82

Registering Products—Mandatory for Validating SLAs | 83

Mounting an EX4650 Switch on Four Posts of a Rack or Cabinet | 83

Connecting the EX4650 to Power | 87

Connecting Earth Ground to an EX4650 Switch | 87

Connecting AC Power to an EX4650 Switch | 88

Connecting DC Power to an EX4650 Switch | 90

Connecting the EX4650 to the Network | 94

Installing a Transceiver | 94

Connecting a Fiber-Optic Cable | 97

Connecting the EX4650 to External Devices | 98

Connecting a Device to a Network for Out-of-Band Management | 98

Connecting a Device to a Management Console by Using an RJ-45 Connector | 99

Configuring Junos OS on the EX4650 | 100

EX4650 Switch Default Configuration | 101

Connecting and Configuring an EX4650 Switch | 101

Maintaining Components

Maintaining the EX4650 Cooling System | 109

Removing a Fan Module from an EX4650 Switch | 109

Installing a Fan Module in an EX4650 Switch | 110

Maintaining the EX4650 Power System | 112

Removing a Power Supply from an EX4650 Switch | 112

Installing an AC Power Supply in an EX4650 Switch | 114

Maintaining Transceivers | 115

Removing a Transceiver | 116

Removing a QSFP28 Transceiver | 119

Installing a Transceiver | 121

Installing a QSFP28 Transceiver | 123

Maintaining Fiber-Optic Cables | 125

Connecting a Fiber-Optic Cable | 125

Disconnecting a Fiber-Optic Cable | 126

Maintaining Fiber-Optic Cables | 127

Troubleshooting Hardware

Troubleshooting the EX4650 Components | 131

Understanding Alarms | 131

Interface Alarm Messages | 132

Creating an Emergency Boot Device | 133

Contacting Customer Support and Returning the Chassis or Components

Returning an EX4650 Chassis or Components | 137

Returning an EX4650 Switch or Component for Repair or Replacement | 137

Locating the Serial Number on an EX4650 Switch or Component | 138

Listing the Switch and Components Details using the CLI | 138

Locating the Chassis Serial Number ID Label on an EX4650 Switch | 139

Locating the Serial Number ID Labels on FRUs in an EX4650 Switch | 139

Contacting Customer Support to Obtain Return Material Authorization | 140

Packing an EX4650 Switch or Component for Shipping | 141

Packing an EX4650 Switch for Shipping | 141

Packing EX4650 Switch Components for Shipping | 143

Safety and Compliance Information

General Safety Guidelines and Warnings | 147

Definitions of Safety Warning Levels | 148

Qualified Personnel Warning | 150

Warning Statement for Norway and Sweden | 151

Fire Safety Requirements | 151

Fire Suppression | 151

Fire Suppression Equipment | 151

Installation Instructions Warning | 153

Chassis and Component Lifting Guidelines | 153

Restricted Access Warning | 155

Ramp Warning | 157

Rack-Mounting and Cabinet-Mounting Warnings | 157

Grounded Equipment Warning | 162

Radiation from Open Port Apertures Warning | 163

Laser and LED Safety Guidelines and Warnings | 164

General Laser Safety Guidelines | 164

Class 1 Laser Product Warning | 165

Class 1 LED Product Warning | 166

Laser Beam Warning | 167

Maintenance and Operational Safety Guidelines and Warnings | 167

Battery Handling Warning | 169

Jewelry Removal Warning | 170

vii

Lightning Activity Warning | 172

Operating Temperature Warning | 173

Product Disposal Warning | 175

General Electrical Safety Guidelines and Warnings | 176

Action to Take After an Electrical Accident | 177

Prevention of Electrostatic Discharge Damage | 177

AC Power Electrical Safety Guidelines | 179

AC Power Disconnection Warning | 180

DC Power Electrical Safety Guidelines | 181

DC Power Disconnection Warning | 182

DC Power Grounding Requirements and Warning | 184

DC Power Wiring Sequence Warning | 186

DC Power Wiring Terminations Warning | 189

Multiple Power Supplies Disconnection Warning | 192

TN Power Warning | 193

Agency Approvals for EX4650 Switches | 193

Compliance Statements for EMC Requirements for EX Series Switches | 195

Canada | 195

Taiwan | 196

European Community | 196

Israel | 196

Japan | 197

Korea | 197

United States | 197

FCC Part 15 Statement | 198

Nonregulatory Environmental Standards | 198

viii

About the Documentation

IN THIS SECTION

Documentation and Release Notes | ix

Using the Examples in This Manual | ix

Documentation Conventions | xi

Documentation Feedback | xiv

Requesting Technical Support | xiv

Use this guide to install hardware and perform initial software configuration, routine maintenance, and

troubleshooting for the EX4650 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

isafull 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;

}

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

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