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MX2020 3D Universal Edge Router
Hardware Guide
Published: 2013-03-26
Copyright © 2013, Juniper Networks, Inc.
Juniper Networks, Inc.
1194 North Mathilda Avenue
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
This product includes the Envoy SNMP Engine, developed by Epilogue Technology, an Integrated Systems Company. Copyright © 1986-1997,
Epilogue Technology Corporation. All rights reserved. This program and its documentation were developed at private expense, and no part
of them is in the public domain.
This product includes memory allocation software developed by Mark Moraes, copyright © 1988, 1989, 1993, University of Toronto.
This product includes FreeBSD software developed by the University of California, Berkeley, and its contributors. All of the documentation
and software included in the 4.4BSD and 4.4BSD-Lite Releases is copyrighted by the Regents of the University of California. Copyright ©
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GateD software copyright © 1995, the Regents of the University. All rights reserved. Gate Daemon was originated and developed through
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
software copyright © 1988, Regents of the University of California. All rights reserved. Portions of the GateD software copyright © 1991, D.
L. S. Associates.
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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
Copyright © 2013, Juniper Networks, Inc.
All rights reserved.
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.
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The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks
software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at
http://www.juniper.net/support/eula.html. By downloading, installing or using such software, you agree to the terms and conditions
of that EULA.
Copyright © 2013, Juniper Networks, Inc.ii
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
iiiCopyright © 2013, Juniper Networks, Inc.
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
Copyright © 2013, Juniper Networks, Inc.iv
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
vCopyright © 2013, Juniper Networks, Inc.
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
Copyright © 2013, Juniper Networks, Inc.vi
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
xviiCopyright © 2013, Juniper Networks, Inc.
List of Figures
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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
xixCopyright © 2013, Juniper Networks, Inc.
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
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