Juniper MX2020 User manual

MX2020 3D Universal Edge Router

Hardware Guide

Published: 2013-03-26

Juniper Networks, Inc.

1194 North Mathilda Avenue

Sunnyvale, California 94089

USA

408-745-2000

www.juniper.net

of them is in the public domain.

This product includes FreeBSD software developed by the University of California, Berkeley, and its contributors. All of the documentation

release 3.0 by Cornell University and its collaborators. Gated is based on Kirton’s EGP, UC Berkeley’s routing daemon (routed), and DCN’s

HELLO routing protocol. Development of Gated has been supported in part by the National Science Foundation. Portions of the GateD

L. S. Associates.

Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United

States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other

trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify,

transfer, or otherwise revise this publication without notice.

Products made or sold by Juniper Networks or components thereof might be covered by one or more of the following patents that are

owned by or licensed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, 5,909,440, 6,192,051, 6,333,650, 6,359,479, 6,406,312,

6,429,706, 6,459,579, 6,493,347, 6,538,518, 6,538,899, 6,552,918, 6,567,902, 6,578,186, and 6,590,785.

MX2020 3D Universal Edge Router Hardware Guide

Revision History

March 2013—Initial Release.

The information in this document is current as of the date on the title page.

YEAR 2000 NOTICE

Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the

year 2038. However, the NTP application is known to have some difficulty in the year 2036.

END USER LICENSE AGREEMENT

The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks

software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at

http://www.juniper.net/support/eula.html. By downloading, installing or using such software, you agree to the terms and conditions

of that EULA.

Table of Contents

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Junos OS Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

Part 1 MX2020 3D Universal Edge Router

Chapter 1 MX2020 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

MX2020 Router Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

MX2020 Router Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . . . . . . . 4

MX2020 Component Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Chapter 2 MX2020 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

MX2020 Chassis Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

MX2020 Rack-Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

MX2020 Backplane Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

MX2020 Power Midplane Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

MX2020 Adapter Card (ADC) Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

MX2020 Modular Port Concentrator Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

MX2020 Modular Port Concentrator Description . . . . . . . . . . . . . . . . . . . . . . . 21

MPC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

MX2020 Modular Port Concentrator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

MX2020 Modular Interface Card Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

MX2020 Modular Interface Card Description . . . . . . . . . . . . . . . . . . . . . . . . . 24

MX2020 Modular Interface Card (MIC) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 24

MX2020 Host Subsystem Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

MX2020 Host Subsystem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Supported CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

CB-RE Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

CB-RE Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

CB-RE Interface Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

RE-MX2000-1800x4 CB-RE Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

RE-MX2000-1800x4 CB-RE Components . . . . . . . . . . . . . . . . . . . . . . . . 27

RE-MX2000-1800x4 CB-RE Boot Sequence . . . . . . . . . . . . . . . . . . . . . 28

MX2020 CB-RE Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

MX2020 CB-RE LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

MX2020 Switch Fabric Board Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

MX2020 Switch Fabric Board Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

SFB Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SFB Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SFB Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

MX2020 Switch Fabric Board LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

MX2020 Craft Interface Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

MX2020 Craft Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

MX2020 Alarm LEDs and Alarm Cutoff/Lamp Test Button . . . . . . . . . . . . . . 35

MX2020 Component LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . 36

MX2020 Host Subsystem LEDs and Buttons on the Craft Interface . . . . 36

MX2020 Power Supply Module LEDs on the Craft Interface . . . . . . . . . . 37

MX2020 Line Card LEDs and Buttons on the Craft Interface . . . . . . . . . . 37

MX2020 SFB LED and Buttons on the Craft Interface . . . . . . . . . . . . . . . 38

MX2020 Fan LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . 38

MX2020 Alarm Relay Contacts on the Craft Interface . . . . . . . . . . . . . . . . . . 38

MX2020 Power Subsystem Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

MX2020 Power Subsystem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

MX2020 Three-Phase Delta and Wye AC Power Distribution Module

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

MX2020 Three-Phase Delta AC Power Distribution Module

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

MX2020 Three-Phase Wye AC Power Distribution Module

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

MX2020 Three-Phase Delta and Wye AC Power Distribution Module

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

MX2020 AC Power Supply Module Description . . . . . . . . . . . . . . . . . . . . . . . 46

MX2020 AC Power Supply Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

MX2020 DC Power Distribution Module Description . . . . . . . . . . . . . . . . . . . 49

MX2020 DC Power Distribution Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . 50

MX2020 DC Power Supply Module Description . . . . . . . . . . . . . . . . . . . . . . . . 51

MX2020 DC Power Supply Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

MX2020 Cooling System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

MX2020 Cooling System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

MX2020 Fan Tray LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

MX2020 Cable Manager Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Part 2 Setting Up the MX2020 Router

Chapter 3 MX2020 Router Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Installing an MX2020 Router Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Chapter 4 Preparing the Site for MX2020 Router Installation . . . . . . . . . . . . . . . . . . . . 67

MX2020 Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

MX2020 Rack Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Rack Size and Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Spacing of Mounting Bracket Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

MX2020 3D Universal Edge Router Hardware Guide

Connection to the Building Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Clearance Requirements for Airflow and Hardware Maintenance for the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

MX2020 Cabinet Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

MX2020 Cabinet Size and Clearance Requirements . . . . . . . . . . . . . . . . . . . . 72

MX2020 Cabinet Airflow Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Chapter 5 Unpacking the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Overview of Unpacking the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Tools and Parts Required to Unpack the MX2020 Router . . . . . . . . . . . . . . . . . . . 75

Unpacking the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Verifying the MX2020 Parts Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Chapter 6 Installing the MX2020 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . 81

Installing the MX2020 Mounting Hardware for a Four-Post Rack or Cabinet . . . . 81

Installing Cage Nuts, If Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Installing the Four-Post Mounting Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Chapter 7 Installing the MX2020 Router Using a Pallet Jack . . . . . . . . . . . . . . . . . . . . . 85

Overview of Installing a MX2020 Router Using a Pallet Jack . . . . . . . . . . . . . . . . . 85

Tools Required to Install the MX2020 Router Using a Pallet Jack . . . . . . . . . . . . . 86

Removing Components from the MX2020 Router Chassis Before Installing It

with a Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Removing the Power Distribution Modules Before Installing an MX2020

Router with a Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Removing the Power Supply Modules Before Installing an MX2020 Router

with a Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Removing the Fan Trays Before Installing an MX2020 Router with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Removing the SFBs Before Installing an MX2020 Router with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Removing the MPCs with Adapter Card Before Installing an MX2020 Router

with a Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Removing the MPCs without an Adapter Card Before Installing an MX2020

Router with a Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Removing the CB-REs Before Installing the MX2020 Router with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Installing the MX2020 Router Using a Pallet Jack with Attachment . . . . . . . . . . . 96

Reinstalling Components in the MX2020 Chassis After Installing It with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Reinstalling the Power Distribution Modules After Installing the MX2020

Router with a Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Reinstalling the Power Supply Modules After Installing the MX2020 Router

with a Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Reinstalling the Fan Trays After Installing the MX2020 Router with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Reinstalling the SFBs After Installing the MX2020 Router with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Reinstalling the Adapter Card After Installing the MX2020 Router with a

Pallet Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Table of Contents

Reinstalling the MPCs After Installing the MX2020 Router with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Reinstalling the CB-REs After Installing the MX2020 Router with a Pallet

Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Chapter 8 Connecting the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Tools and Parts Required for MX2020 Router Connections . . . . . . . . . . . . . . . . . 109

Connecting the MX2020 Router to Management and Alarm Devices . . . . . . . . . 109

Connecting the MX2020 Router to a Network for Out-of-Band

Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Connecting the MX2020 Router to a Console or Auxiliary Device . . . . . . . . . 110

Connecting an MX2020 Router to an External Alarm-Reporting Device . . . . 111

Connecting MPC or MIC Cables to the MX2020 Router . . . . . . . . . . . . . . . . . . . . . 113

Chapter 9 Grounding and Providing Power to the MX2020 Router . . . . . . . . . . . . . . . . 115

Tools and Parts Required for MX2020 Router Grounding and Power

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Grounding the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Connecting AC Power to a MX2020 Router with Three-Phase Delta AC Power

Distribution Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Mapping Input Power from Three-Phase Delta AC Power Distribution Modules

to AC Power Supply Modules on the MX2020 Router . . . . . . . . . . . . . . . . . . 120

Connecting AC Power to a MX2020 Router with Three-Phase Wye AC Power

Distribution Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Mapping Input Power from Three-Phase Wye AC Power Distribution Modules

to AC Power Supply Modules on the MX2020 Router . . . . . . . . . . . . . . . . . . 125

Installing MX2020 AC Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Powering On the AC-Powered MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Powering Off the AC-Powered MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Connecting Power to a DC-Powered MX2020 Router with Power Distribution

Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Installing MX2020 DC Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Powering On the DC-Powered MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Powering Off the DC-Powered MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Chapter 10 Configuring Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Initially Configuring the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Part 3 MX2020 Router Hardware Maintenance, Troubleshooting, and

Replacement Procedures

Chapter 11 Maintaining MX2020 Router Hardware Components . . . . . . . . . . . . . . . . . 147

Maintaining and Verifying the Status of the MX2020 Router Components . . . . . 147

Tools and Parts Required to Maintain the MX2020 Hardware Components . . . . 148

Routine Maintenance Procedures for the MX2020 Router . . . . . . . . . . . . . . . . . . 148

Maintaining and Verifying the MX2020 Router Version . . . . . . . . . . . . . . . . . . . . 149

Maintaining and Verifying the Status of the MX2020 Craft Interface . . . . . . . . . 149

Maintaining the MX2020 Cooling System Components . . . . . . . . . . . . . . . . . . . . 151

Maintaining the MX2020 Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Maintaining the MX2020 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

MX2020 3D Universal Edge Router Hardware Guide

Maintaining the MX2020 Air Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Maintaining the MX2020 Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Maintaining the MX2020 Cooling System Zones . . . . . . . . . . . . . . . . . . . . . . 162

Maintaining the MX2020 Host Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Maintaining the MX2020 Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Maintaining the MX2020 Control Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Maintaining the MX2020 Adapter Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Maintaining MX2020 Packet Forwarding Engine Components . . . . . . . . . . . . . . 168

Maintaining MX2020 MPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Maintaining MX2020 MICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Maintaining the MX2020 Ethernet Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Maintaining Cables That Connect to MX2020 MPCs or MICs . . . . . . . . . . . . 175

Holding and Storing MX Series MPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

MX2020 MPC Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Holding an MX2020 MPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Storing an MX2020 MPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Maintaining the MX2020 SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Maintaining the MX2020 Switch Processor Mezzanine Board (SPMB) . . . . . . . . 181

Maintaining the MX2020 Power Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Maintaining the MX2020 Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . 186

Maintaining the MX2020 Chassis FRU Power On Sequence . . . . . . . . . . . . . . . . . 191

Chapter 12 Troubleshooting MX2020 Router Hardware Components . . . . . . . . . . . . . 193

MX2020 Troubleshooting Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Command-Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Chassis and Interface Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Craft Interface LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Component LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Troubleshooting the MX2020 Host Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . 196

Troubleshooting the MX2020 Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Troubleshooting the MX2020 MPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Troubleshooting the MX2020 MICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Troubleshooting the MX2020 Power Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . 202

Chapter 13 Replacing MX2020 Router Hardware Components . . . . . . . . . . . . . . . . . . . . 211

MX2020 Field-Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Tools and Parts Required for Replacing MX2020 Hardware Components . . . . . . 212

Replacing the MX2020 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Disconnecting the Alarm Relay Wires from the MX2020 Craft Interface . . . 215

Removing the MX2020 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Installing the MX2020 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Connecting the Alarm Relay Wires to the MX2020 Craft Interface . . . . . . . . 217

Replacing an MX2020 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Removing an MX2020 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Installing an MX2020 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

Replacing the MX2020 Air Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Removing the MX2020 Air Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Installing the MX2020 Air Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Table of Contents

Replacing the MX2020 Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Removing the MX2020 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Installing the MX2020 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Replacing MX2020 Host Subsystem Components . . . . . . . . . . . . . . . . . . . . . . . 228

Effect of Taking the MX2020 Host Subsystem Offline . . . . . . . . . . . . . . . . . 228

Taking an MX2020 Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . . . . . . 230

Removing an MX2020 CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Installing an MX2020 CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Replacing an MX2020 SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Removing an MX2020 SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Installing an MX2020 SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Replacing an MX2020 MPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Removing an MX2020 MPC with Adapter Card . . . . . . . . . . . . . . . . . . . . . . 243

Removing an MX2020 MPC from the Adapter Card . . . . . . . . . . . . . . . . . . . 244

Removing an MX2020 Adapter Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Installing an MX2020 Adapter Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Installing an MX2020 MPC into an Adapter Card . . . . . . . . . . . . . . . . . . . . . 249

Replacing a MX2020 MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Removing a MX2020 MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Installing a MX2020 MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Installing a MX2020 Dual-Wide MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Replacing a Cable on an MX2020 MPC or MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Removing a Cable on an MX2020 MPC or MIC . . . . . . . . . . . . . . . . . . . . . . . 258

Installing a Cable on an MX2020 MPC or MIC . . . . . . . . . . . . . . . . . . . . . . . . 259

Replacing an SFP or XFP Transceiver on an MX2020 MPC or MIC . . . . . . . . . . . 262

Removing an SFP or XFP Transceiver from an MX2020 MPC or MIC . . . . . . 262

Installing an SFP or XFP Transceiver into an MX2020 MPC or MIC . . . . . . . 263

Replacing MX2020 DC Power Subsystem Components . . . . . . . . . . . . . . . . . . . 264

Replacing an MX2020 DC Power Distribution Module . . . . . . . . . . . . . . . . . 264

Removing an MX2020 DC Power Distribution Module . . . . . . . . . . . . . 264

Installing an MX2020 DC Power Distribution Module . . . . . . . . . . . . . . 266

Replacing an MX2020 DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . 269

Removing an MX2020 DC Power Supply Module . . . . . . . . . . . . . . . . . 269

Installing an MX2020 DC Power Supply Module . . . . . . . . . . . . . . . . . . 272

Replacing an MX2020 DC Power Distribution Module Cable . . . . . . . . . . . . 273

Disconnecting an MX2020 DC Power Distribution Module Cable . . . . . 274

Connecting an MX2020 DC Power Distribution Module Cable . . . . . . . 274

Replacing MX2020 AC Power Subsystem Components . . . . . . . . . . . . . . . . . . . 276

Replacing an MX2020 Three-Phase Delta AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Removing an MX2020 Three-Phase Delta AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Installing an MX2020 Three-Phase Delta AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280

Replacing an MX2020 Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . 283

Removing an MX2020 Three-Phase Delta AC Power Cord . . . . . . . . . . 284

Installing an MX2020 Three-Phase Delta AC Power Cord . . . . . . . . . . 286

MX2020 3D Universal Edge Router Hardware Guide

Replacing an MX2020 Three-Phase Wye AC Power Distribution Module . . 288

Removing an MX2020 Three-Phase Wye AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

Installing an MX2020 Three-Phase Wye AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Replacing an MX2020 Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . 296

Removing an MX2020 Three-Phase Wye AC Power Cord . . . . . . . . . . . 296

Installing an MX2020 Three-Phase Wye AC Power Cord . . . . . . . . . . . 299

Replacing an MX2020 AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . 301

Removing an MX2020 AC Power Supply Module . . . . . . . . . . . . . . . . . . 301

Installing an MX2020 AC Power Supply Module . . . . . . . . . . . . . . . . . . 303

Replacing the MX2020 Cable Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

Removing the MX2020 Upper Cable Manager . . . . . . . . . . . . . . . . . . . . . . . 306

Installing the MX2020 Upper Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . 306

Removing the MX2020 Lower Cable Manager . . . . . . . . . . . . . . . . . . . . . . . 307

Installing the MX2020 Lower Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . 308

Removing the MX2020 DC Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Installing the MX2020 DC Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Replacing MX2020 EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Removing MX2020 EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Installing MX2020 EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Part 4 Appendixes

Appendix A Safety and Regulatory Compliance Information for the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

Definition of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

General Safety Guidelines for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . 317

General Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . . 318

Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

Restricted Access Area Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Preventing Electrostatic Discharge Damage to an MX2020 Router . . . . . . . . . . 320

Fire Safety Requirements for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . . 321

General Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Fire Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Fire Suppression Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Installation Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . 322

Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

Rack-Mounting Requirements and Warnings . . . . . . . . . . . . . . . . . . . . . . . . 323

Ramp Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

MX2020 Chassis Moving Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

General Laser Safety Guidelines for Juniper Networks Devices . . . . . . . . . . . . . . 328

Laser Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . . . . 328

Class 1 Laser Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

Class 1 LED Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

Laser Beam Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . 330

Table of Contents

Maintenance and Operational Safety Warnings for Juniper Networks Devices . . 331

Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

Electrical Safety Guidelines and Warnings for the MX2020 Router . . . . . . . . . . 336

General Electrical Safety Warnings for Juniper Networks Devices . . . . . . . . 336

Grounded Equipment Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337

Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 337

Midplane Energy Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . 338

Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

General Electrical Safety Guidelines and Electrical Codes for Juniper

Networks Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

In Case of an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

TN Power Warning for MX2020 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

MX2020 DC Power Electrical Safety Guidelines and Warnings . . . . . . . . . . 342

MX2020 DC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . 342

DC Power Electrical Safety Warnings for Juniper Networks Devices . . . 343

MX2020 AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 346

Agency Approvals and Compliance Statements for the MX2020 Router . . . . . . 347

Agency Approvals for MX2020 Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

Compliance Statements for NEBS for the MX2020 Router . . . . . . . . . . . . . 348

Compliance Statements for EMC Requirements for the MX2020 Router . . 348

Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

European Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350

Compliance Statements for Environmental Requirements for Juniper

Networks Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350

Appendix B MX2020 Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351

MX2020 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351

Appendix C MX2020 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . 355

MX2020 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 355

MX2020 3D Universal Edge Router Hardware Guide

Appendix D Power Guidelines, Requirements, and Specifications for the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

MX2020 Router DC Power Specifications and Requirements . . . . . . . . . . . . . . . 357

MX2020 DC Power Subsystem Electrical Specifications . . . . . . . . . . . . . . . 357

DC Power Circuit Breaker Requirements for the MX2020 Router . . . . . . . . . 358

MX2020 DC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

DC Power Cable Specifications for the MX2020 Router . . . . . . . . . . . . . . . 360

MX2020 DC Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

Calculating DC Power Requirements for MX2020 Routers . . . . . . . . . . . . . . . . . 365

MX2020 Router AC Power Specifications and Requirements . . . . . . . . . . . . . . . 369

MX2020 AC Power Subsystem Electrical Specifications . . . . . . . . . . . . . . . 369

MX2020 Three-Phase Delta AC Power Distribution Module

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

MX2020 Three-Phase Wye AC Power Distribution Module

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

MX2020 AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

MX2020 AC Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Calculating AC Power Requirements for MX2020 Routers . . . . . . . . . . . . . . 377

MX2020 Router Grounding Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

MX2020 Chassis Grounding Points Specifications . . . . . . . . . . . . . . . . . . . . 380

MX2020 Router Grounding Cable Lug Specifications . . . . . . . . . . . . . . . . . . 381

MX2020 Router Grounding Cable Specifications . . . . . . . . . . . . . . . . . . . . . 381

Site Electrical Wiring Guidelines for MX Series Routers . . . . . . . . . . . . . . . . . . . . 382

Distance Limitations for Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Radio Frequency Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Appendix E Cable and Wire Guidelines and Specifications for the MX2020 Router . . 385

Understanding Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion . . . 385

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . . . . . 385

Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . 385

Calculating Power Budget and Power Margin for Fiber-Optic Cables . . . . . . . . . 386

Calculating Power Budget for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . 386

Calculating Power Margin for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 387

CB-RE Interface Cable and Wire Specifications for MX Series Routers . . . . . . . . 388

Appendix F MX2020 Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

RJ-45 Connector Pinouts for an MX Series CB-RE MANAGEMENT Port . . . . . . . 391

RJ-45 Connector Pinouts for MX Series CB-RE AUX and CONSOLE Ports . . . . . 392

Appendix G Contacting Customer Support and Returning MX2020 Hardware . . . . . . 393

Locating MX2020 Component Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 393

Displaying MX2020 Router Components and Serial Numbers . . . . . . . . . . . 393

MX2020 Chassis Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401

MX2020 Craft Interface Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 402

MX2020 MPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402

MX2020 MIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

MX2020 CB-RE Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

MX2020 SFB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

MX2020 Power Distribution Module Serial Number Label . . . . . . . . . . . . . 406

Table of Contents

MX2020 Power Supply Module Serial Number Label . . . . . . . . . . . . . . . . . . 407

MX2020 Fan Tray Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

Returning a Hardware Component to Juniper Networks, Inc. . . . . . . . . . . . . . . . . 410

Tools and Parts Required to Remove Components from an MX2020 Router . . . 411

Packing the MX2020 Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411

Guidelines for Packing Router Components for Shipment . . . . . . . . . . . . . . . . . . 413

Part 5 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417

MX2020 3D Universal Edge Router Hardware Guide

List of Figures

Part 1 MX2020 3D Universal Edge Router

Chapter 1 MX2020 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 1: Power Distribution from Each Power Subsystem to the FRUs . . . . . . . . . . 6

Figure 2: DC Power Subsystem Feed Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 3: Power Distribution from Three-Phase Feed Delta PDM to the AC

PSMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 4: Power Distribution from Three-Phase Feed Wye PDM to the AC

PSMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 2 MX2020 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5: Front View of a Fully Configured MX2020 Router Chassis . . . . . . . . . . . . 13

Figure 6: Rear View of a Fully Configured AC-Powered MX2020 Router

Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 7: Rear View of a Fully Configured DC-Powered MX2020 Router

Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 8: MX2020 Router ESD Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 9: Typical ADC Supported on the MX2020 Router . . . . . . . . . . . . . . . . . . . . 21

Figure 10: Typical MPC Supported on the MX2020 Router . . . . . . . . . . . . . . . . . . . 22

Figure 11: MPC Installed in the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 12: RE-MX2000-1800x4 CB-RE Front View . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 13: SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 14: Front Panel of the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 15: Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 16: Three-Phase Delta AC Power Distribution Module . . . . . . . . . . . . . . . . . 42

Figure 17: Three-Phase Delta AC Power Distribution Module Connections . . . . . . 43

Figure 18: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 19: Three-Phase Wye AC Power Distribution Module . . . . . . . . . . . . . . . . . 44

Figure 20: Three-Phase Wye AC Power Distribution Module Connections . . . . . . 45

Figure 21: Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 22: Three-Phase Delta AC PDM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 23: AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 24: Selecting Input Feed on the AC Power Supply Module . . . . . . . . . . . . . 48

Figure 25: DC Power Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 26: DC Power Distribution Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 27: DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 28: Selecting Input Feed on the DC Power Supply Module . . . . . . . . . . . . . 53

Figure 29: Removing Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Figure 30: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 31: Adjustable Air Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 32: Upper/Lower Fan Trays with Safety Double Latch System . . . . . . . . . . 57

Figure 33: Lower Fan Tray Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 34: MX2020 Cable Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 35: Upper and Lower Cable Management . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure 36: Middle Card-Cage Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 37: Middle Card-Cage Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Part 2 Setting Up the MX2020 Router

Chapter 4 Preparing the Site for MX2020 Router Installation . . . . . . . . . . . . . . . . . . . . 67

Figure 38: Typical Four-Post Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Figure 39: Chassis Dimensions and Clearance Requirements for the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 40: Airflow Through Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Chapter 5 Unpacking the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Figure 41: MX2020 Shipping Crate Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figure 42: MX2020 Shipping Crate Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 6 Installing the MX2020 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . 81

Figure 43: Installing the Mounting Hardware for a Four-Post Rack or Cabinet . . . 83

Chapter 7 Installing the MX2020 Router Using a Pallet Jack . . . . . . . . . . . . . . . . . . . . . 85

Figure 44: Removing an AC Power Distribution Module Before Installing the

MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 45: Removing a DC Power Distribution Module Before Installing the

MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 46: Removing a AC Power Supply Module Before Installing the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Figure 47: Removing a DC Power Supply Module Before Installing the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Figure 48: Removing Upper Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Figure 49: Removing Lower Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Figure 50: Removing an SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Figure 51: Removing an MPC without the ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Figure 52: Removing a CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Figure 53: Installing the MX2020 Router into a Four-Post Rack . . . . . . . . . . . . . . 98

Figure 54: Reinstalling an AC Power Distribution Module . . . . . . . . . . . . . . . . . . . 100

Figure 55: Reinstalling a DC Power Distribution Module . . . . . . . . . . . . . . . . . . . . 101

Figure 56: Reinstalling an AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . 102

Figure 57: Reinstalling a DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . 103

Figure 58: Installing Upper Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Figure 59: Installing Lower Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Figure 60: Reinstalling an SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Figure 61: Reinstalling an ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Figure 62: Reinstalling an MPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Figure 63: Reinstalling a CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Chapter 8 Connecting the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Figure 64: Out-of-Band Management Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Figure 65: Out-of-Band Management Cable Connector . . . . . . . . . . . . . . . . . . . . 110

Figure 66: Console and Auxiliary Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

MX2020 3D Universal Edge Router Hardware Guide

Figure 67: Console and Auxiliary Cable Connector . . . . . . . . . . . . . . . . . . . . . . . . . 111

Figure 68: Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Figure 69: Attaching a Cable to a MPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Figure 70: Attaching a Cable to a MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Chapter 9 Grounding and Providing Power to the MX2020 Router . . . . . . . . . . . . . . . . 115

Figure 71: Connecting the Grounding Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Figure 72: Connecting Power to a Three-Phase Delta AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Figure 73: Mapping AC Three-Phase Delta Power Distribution Modules Input to

AC Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Figure 74: Connecting Power to a Three-Phase Wye AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Figure 75: Mapping AC Three-Phase Wye Power Distribution Modules Input to

AC Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Figure 76: Selecting AC Power Subsystem Feed Redundancy . . . . . . . . . . . . . . . 128

Figure 77: MX2020 Router with AC Power Supply Modules Installed . . . . . . . . . . 128

Figure 78: MX2020 AC Power Supply Module Front View . . . . . . . . . . . . . . . . . . . 129

Figure 79: Connecting DC Power to the MX2020 Router . . . . . . . . . . . . . . . . . . . 134

Figure 80: Selecting DC Power Subsystem Feed Redundancy . . . . . . . . . . . . . . . 135

Figure 81: MX2020 Router with DC Power Supply Modules Installed . . . . . . . . . . 135

Figure 82: MX2020 DC Power Supply Module Front View . . . . . . . . . . . . . . . . . . 136

Chapter 10 Configuring Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Figure 83: USB Flash Drive Port on CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Part 3 MX2020 Router Hardware Maintenance, Troubleshooting, and

Replacement Procedures

Chapter 11 Maintaining MX2020 Router Hardware Components . . . . . . . . . . . . . . . . . 147

Figure 84: Upper and Lower Cable Manager Cable Routing . . . . . . . . . . . . . . . . . 175

Figure 85: MPC Edges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Figure 86: Do Not Grasp the Connector Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Figure 87: Do Not Rest the MPC on an Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Chapter 13 Replacing MX2020 Router Hardware Components . . . . . . . . . . . . . . . . . . . . 211

Figure 88: Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Figure 89: Removing the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Figure 90: Installing the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Figure 91: Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Figure 92: Removing Upper Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Figure 93: Removing Lower Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Figure 94: Installing Upper Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Figure 95: Installing Lower Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Figure 96: Removing the Lower Air Filter from the Chassis . . . . . . . . . . . . . . . . . 223

Figure 97: Removing the Middle Card Cage Cable Manager Air Filter . . . . . . . . . 224

Figure 98: Removing the PSM Air Filter from the Chassis . . . . . . . . . . . . . . . . . . . 225

Figure 99: Installing the Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Figure 100: Installing the Middle Card Cage Cable Manager Air Filter . . . . . . . . . 227

Figure 101: Installing the PSM Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

List of Figures

Figure 102: Removing a CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Figure 103: Installing an CB-RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Figure 104: Removing an SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Figure 105: Installing an SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Figure 106: Removing an MPC from the ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Figure 107: Removing an ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Figure 108: Installing an ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Figure 109: Installing an MPC into an ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Figure 110: Attaching a Cable to an MPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Figure 111: Removing a Single-Wide MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Figure 112: Installing the Septum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Figure 113: Installing a MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Figure 114: Removing the Septum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Figure 115: Installing a MIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Figure 116: Installing an MPC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Figure 117: Removing SFPs or XFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Figure 118: Removing a DC Power Distribution Module from the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Figure 119: Installing a DC Power Distribution Module . . . . . . . . . . . . . . . . . . . . . 267

Figure 120: Connecting DC Power to the MX2020 Router . . . . . . . . . . . . . . . . . . 269

Figure 121: Removing a DC Power Supply Module from the MX2020 Router . . . . 271

Figure 122: Installing a DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . 273

Figure 123: Connecting Power Cables to the DC Power Distribution Module . . . . 275

Figure 124: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Figure 125: Disconnecting the Power Cord from a Three-Phase Delta AC Power

Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Figure 126: Removing a Three-Phase Delta AC Power Distribution Module . . . . 279

Figure 127: Installing a Three-Phase Delta AC Power Distribution Module . . . . . . 281

Figure 128: Connecting Power to a Three-Phase Delta AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

Figure 129: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

Figure 130: Disconnecting the Power Cord from a Three-Phase Delta AC Power

Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

Figure 131: Connecting Power to a Three-Phase Delta AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

Figure 132: Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290

Figure 133: Disconnecting the Power Cord from a Three-Phase Wye AC Power

Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291

Figure 134: Removing a Three-Phase Wye AC Power Distribution Module . . . . . 292

Figure 135: Installing a Three-Phase Wye AC Power Distribution Module . . . . . . 294

Figure 136: Connecting Power to a Three-Phase Wye AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Figure 137: Three-Phase Wye AC Power Supply Cord . . . . . . . . . . . . . . . . . . . . . . 297

Figure 138: Disconnecting the Power Cord from a Three-Phase Wye AC Power

Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298

Figure 139: Connecting Power to a Three-Phase Wye AC Power Distribution

Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

Figure 140: Removing an AC Power Supply Module from the MX2020 Router . . 303

Figure 141: Installing an AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . 305

MX2020 3D Universal Edge Router Hardware Guide

Figure 142: Removing the Upper Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . 306

Figure 143: Installing the Upper Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 307

Figure 144: Removing the Lower Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . 308

Figure 145: Installing the Lower Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Figure 146: Removing the DC Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Figure 147: Installing the DC Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Figure 148: Removing the EMI Card Cage Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Figure 149: Installing the EMI Card Cage Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

Part 4 Appendixes

Appendix A Safety and Regulatory Compliance Information for the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

Figure 150: Placing a Component into an Electrostatic Bag . . . . . . . . . . . . . . . . . 321

Figure 151: MX2020 Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

Appendix D Power Guidelines, Requirements, and Specifications for the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

Figure 152: Typical DC Source Cabling to the Router . . . . . . . . . . . . . . . . . . . . . . 359

Figure 153: DC Power Cable Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

Figure 154: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

Figure 155: Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372

Figure 156: AC PDM Three-Phase Delta Input Power . . . . . . . . . . . . . . . . . . . . . . 378

Figure 157: AC PDM Three-Phase Wye Input Power . . . . . . . . . . . . . . . . . . . . . . . 379

Figure 158: Connecting Chassis Grounding Points on the MX2020 Router . . . . . 381

Figure 159: Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Appendix G Contacting Customer Support and Returning MX2020 Hardware . . . . . . 393

Figure 160: Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400

Figure 161: MX2020 Chassis Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 401

Figure 162: Craft Interface Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . 402

Figure 163: MPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

Figure 164: MIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

Figure 165: CB-RE Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

Figure 166: SFB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406

Figure 167: AC Power Distribution Module Three-Phase Delta and Wye Serial

Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407

Figure 168: DC Power Distribution Module Serial Number Label . . . . . . . . . . . . . 407

Figure 169: AC Power Supply Module Serial Number Label . . . . . . . . . . . . . . . . 408

Figure 170: DC Power Supply Module Serial Number Label . . . . . . . . . . . . . . . . . 408

Figure 171: MX2020 Fan Tray Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 409

List of Figures

MX2020 3D Universal Edge Router Hardware Guide

List of Tables

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Table 1: Notice Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

Part 1 MX2020 3D Universal Edge Router

Chapter 1 MX2020 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Table 3: MX2020 Hardware and CLI Terminology Mapping . . . . . . . . . . . . . . . . . . . 4

Table 4: AC PDM Delta and Wye Current Requirements . . . . . . . . . . . . . . . . . . . . . 8

Chapter 2 MX2020 Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 5: Front Components in a Fully Configured MX2020 Router . . . . . . . . . . . . . 13

Table 6: Rear Components in a Fully Configured AC-Powered MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 7: Rear Components in a Fully Configured DC-Powered MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 8: Components on the RE-MX2000-1800x4 . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 9: CB-RE LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 10: Switch Fabric Board LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 11: Craft Interface LEDs, Buttons, and Connectors . . . . . . . . . . . . . . . . . . . . 34

Table 12: Alarm LEDs and Alarm Cutoff/Lamp Test Button . . . . . . . . . . . . . . . . . . 36

Table 13: Host Subsystem LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . 36

Table 14: Power Supply Module LEDs on the Craft Interface . . . . . . . . . . . . . . . . . 37

Table 15: Line Card LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 16: SFB LED on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 17: Fan LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 18: Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 19: Supported MX2020 Power System Components . . . . . . . . . . . . . . . . . . 41

Table 20: Three-Phase Delta AC PDM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Table 21: MX2020 AC Power Supply Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 22: DC Power Distribution Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Table 23: MX2020 DC Power Supply Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . 54

Table 24: Upper/Lower Fan Tray with Safety Double Latch System . . . . . . . . . . . 57

Table 25: Fan Tray LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Part 2 Setting Up the MX2020 Router

Chapter 4 Preparing the Site for MX2020 Router Installation . . . . . . . . . . . . . . . . . . . . 67

Table 26: MX2020 Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Chapter 5 Unpacking the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Table 27: Parts List for a Fully Configured MX2020 Router . . . . . . . . . . . . . . . . . . 78

Table 28: Accessory Box Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Chapter 6 Installing the MX2020 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . 81

Table 29: Mounting Hole Locations for Installing the Four-Post Mounting

Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Table 30: Mounting Hole Locations for Installing a MX2020 Chassis in a Four-Post

Rack or Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Chapter 8 Connecting the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Table 31: Out-of-Band Management Port on the MX2020 CB-RE . . . . . . . . . . . . 110

Table 32: Console and Auxiliary Ports on the MX2020 CB-RE . . . . . . . . . . . . . . . . 111

Table 33: Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Chapter 9 Grounding and Providing Power to the MX2020 Router . . . . . . . . . . . . . . . . 115

Table 34: Input AC Power Mapping for Three-Phase Delta PDM0 and PDM1 . . . . 121

Table 35: Input AC Power Mapping for Three-Phase Delta PDM2 and PDM3 . . . 122

Table 36: Input AC Power Mapping for Three-Phase Wye PDM0 and PDM1 . . . . 126

Table 37: Input AC Power Mapping for Three-Phase Wye PDM2 and PDM3 . . . . 127

Part 3 MX2020 Router Hardware Maintenance, Troubleshooting, and

Replacement Procedures

Chapter 12 Troubleshooting MX2020 Router Hardware Components . . . . . . . . . . . . . 193

Table 38: MX2020 Cooling System Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Chapter 13 Replacing MX2020 Router Hardware Components . . . . . . . . . . . . . . . . . . . . 211

Table 39: Field-Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Table 40: Tools and Parts Required for Component Replacement . . . . . . . . . . . 213

Table 41: Alarm Relay Contacts on the Craft Inteface . . . . . . . . . . . . . . . . . . . . . . 215

Table 42: Connecting Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Table 43: Effect of Taking the Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . 229

Part 4 Appendixes

Appendix B MX2020 Router Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351

Table 44: Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351

Appendix C MX2020 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . 355

Table 45: Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 355

Appendix D Power Guidelines, Requirements, and Specifications for the MX2020

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

Table 46: DC PSM Electrical Specifications Per Input Configurations . . . . . . . . . 357

Table 47: DC Power Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

Table 48: FRU DC Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

Table 49: MX2020 DC Power Zoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

Table 50: Typical DC Power Requirements for MX2020 Router . . . . . . . . . . . . . 367

Table 51: Calculating DC Power Budget . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Table 52: Calculating DC Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Table 53: Calculating DC Thermal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Table 54: MX2020 AC Power Subsystem Electrical Specifications . . . . . . . . . . . 369

MX2020 3D Universal Edge Router Hardware Guide

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Juniper MX2020 User manual

Juniper MX2020 User manual

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