Juniper MX2020 Installation instructions

MX2020 Universal Routing Platform
Hardware Guide
Published
2019-12-03

Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. in
the United States and other countries. All other trademarks, service marks, registered marks, or registered service marks
are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right
to change, modify, transfer, or otherwise revise this publication without notice.
MX2020 Universal Routing Platform Hardware Guide
Copyright © 2019 Juniper Networks, Inc. All rights reserved.
The information in this document is current as of the date on the title page.
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related
limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with)
Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement
(“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you
agree to the terms and conditions of that EULA.
ii

Table of Contents
About the Documentation | xxi
Documentation and Release Notes | xxi
Using the Examples in This Manual | xxi
Merging a Full Example | xxii
Merging a Snippet | xxiii
Documentation Conventions | xxiii
Documentation Feedback | xxvi
Requesting Technical Support | xxvi
Self-Help Online Tools and Resources | xxvii
Creating a Service Request with JTAC | xxvii
Overview
1
MX2020 System Overview and Architecture | 3
MX2020 Universal Edge Router Overview | 3
MX Series Router Architecture | 4
MX2020 Chassis Description | 6
MX2020 Backplane Description | 12
MX2020 Component Redundancy | 13
MX2020 Field-Replaceable Units | 19
MX Series Router Packet Forwarding Engine (PFE) Architecture | 21
Line Cards Supported on MX Series Routers | 22
FPCs and PICs | 23
DPCs | 23
MPCs and MICs | 24
Switch Fabric Boards (SFB, SFB2, SFB3) | 24
Switch Control Boards | 25
MX2000 ADC | 25
Routing Engines and CB-REs | 25
Ethernet Frame Counts and Statistics on MX Series Routers | 26
MX2020 Router Hardware Components and CLI Terminology | 26
iii

Understanding Trio Layer 2 Feature Parity | 30
Alarm and Display Components | 31
MX2020 Craft Interface Description | 31
MX2020 Alarm Relay Contacts on the Craft Interface | 33
MX2020 Alarm LEDs and Alarm Cutoff/Lamp Test Button | 34
Cable and Rack Management | 37
MX2020 Cable Management Description | 37
Standard Cable Management System | 37
Extended Cable Management System | 40
MX2020 Rack-Mounting Hardware | 42
Cooling System Components and Descriptions | 45
MX2020 Cooling System Description | 45
MX2020 Fan Tray LED | 48
Host Subsystem Components | 49
MX2000 Host Subsystem CB-RE Description | 49
RE-MX2000-1800x4 CB-RE Description | 50
RE-MX2000-1800x4 CB-RE Front Panel | 51
RE-MX2000-1800x4 CB-RE Components | 52
RE-MX2000-1800x4 CB-RE Software | 53
RE-MX2000-1800x4 CB-RE Boot Sequence | 53
REMX2K-X8-64G and REMX2K-X8-64G-LT CB-RE Description | 54
REMX2K-X8-64G CB-RE Components | 54
REMX2K-X8-64G and REMX2K-X8-64G-LT CB-RE Boot Sequence | 56
CB-RE LEDs | 56
REMX2K-X8-128G CB-RE Description | 60
REMX2K-X8-128G CB-RE Components | 60
REMX2K-X8-128G CB-RE LEDs | 62
REMX2K-X8-128G CB-RE Boot Sequence | 63
MX2000 Switch Fabric Board (SFB) Overview | 63
iv

Interface Modules— ADCs, MPCs, and MICs | 65
MX2000 Modular Interface Card (MIC) Description | 65
MICs Supported by MX Series Routers | 66
MX2020 Modular Interface Card LEDs | 76
MX2020 Modular Port Concentrator (MPC) Description | 76
MPC Components | 78
MPCs Supported by MX Series Routers | 79
MX2020 Modular Port Concentrator LEDs | 83
MX2000 Adapter Card (ADC) Description | 84
MPC Terminology | 85
MX2020 Port and Interface Numbering | 87
Power Subsystem | 91
MX2020 Power Subsystem Description | 91
MX2020 Power Midplane Description | 96
MX2000 Three-Phase Delta AC Power Distribution Module Description | 96
MX2000 Three-Phase Wye AC Power Distribution Module Description | 98
MX2000 Seven-Feed Single-Phase AC Power Distribution Module Description | 101
MX2000 Nine-Feed Single-Phase AC Power Distribution Module Description | 102
MX2000 Three-Phase Delta and Wye AC Power Distribution Module LEDs | 103
MX2000 AC Power Supply Module Description | 103
MX2020 AC Power Supply Module LEDs | 106
MX2020 DC Power Distribution Module (-48 V) Description | 107
MX2000 DC Power Distribution Module (240 V China) Description | 109
MX2020 DC Power Distribution Module (-48 V) LEDs | 110
MX2000 DC Power Distribution Module (240 V China) LEDs | 111
MX2020DC Power Supply Module (-48 V) Description | 112
MX2000 DC Power Supply Module (240 V China) Description | 115
MX2020 DC and Power Supply Module LEDs | 117
v

Site Planning, Preparation, and Specifications
2
Planning and Preparing the Site | 121
Overview of Preparing the Site for the MX2020 Router | 121
MX2020 Site Preparation Checklist | 123
MX2020 Physical Specifications | 125
MX2020 Rack Requirements | 130
Rack Size and Strength | 130
Spacing of Mounting Bracket Holes | 132
Connection to the Building Structure | 132
MX2020 Cabinet Size and Clearance Requirements | 133
Clearance Requirements for Airflow and Hardware Maintenance for the MX2020 Router | 133
MX2020 Cabinet Airflow Requirements | 136
MX2020 Router Environmental Specifications | 137
MX2000 Router Grounding Specifications | 138
MX2000 Series Chassis Grounding Points Specifications | 139
MX2000 Series Router Grounding Cable Lug Specifications | 139
MX2000 Series Router Grounding Cable Specifications | 140
MX2020 Chassis Moving Guidelines | 141
MX2020 Moving Requirements and Guidelines Using a Router Transport Kit | 142
Router Transport Kit Turning Radius | 142
Router Transport Kit Requirements | 143
Rack-Mounting Requirements | 146
Transceiver and Cable Specifications | 149
Calculating Power Budget and Power Margin for Fiber-Optic Cables | 149
Calculating Power Budget for Fiber-Optic Cable | 149
Calculating Power Margin for Fiber-Optic Cable | 150
Understanding Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 151
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 151
Attenuation and Dispersion in Fiber-Optic Cable | 152
CB-RE and RCB Interface Cable and Wire Specifications for MX Series Routers | 153
vi

Pinout Specifications | 155
RJ-45 Connector Pinouts for MX Series CB-RE Auxiliary and Console Ports | 155
RJ-45 Connector Pinouts for an MX Series CB-RE or RCB Management Port | 156
Management Cable Specifications | 157
Console Port Connector Pinout Information | 157
RJ-45 to DB-9 Serial Port Adapter Pinout Information | 158
Mini-USB Port Pinout Specifications | 159
RJ-45 Management Port Connector Pinout Information | 160
RJ-45 Port, QSFP+ Port, QSFP28 Port, SFP+ Port, and SFP Port Connector Pinout Information | 160
AC Power Requirements, Specifications, and Guidelines | 167
MX2020 AC Power Requirements | 167
MX2000 AC Power Cord Specifications | 176
MX2000 AC Power System Electrical Specifications | 179
AC Power Supply Input Fuses | 180
MX2000 Router Grounding Specifications | 181
MX2000 Series Chassis Grounding Points Specifications | 182
MX2000 Series Router Grounding Cable Lug Specifications | 182
MX2000 Series Router Grounding Cable Specifications | 183
MX2000 Three-Phase Delta AC Power Distribution Module Electrical Specifications | 184
MX2000 Three-Phase Wye AC Power Distribution Module Electrical Specifications | 185
MX2000 Single-Phase AC Power Distribution Module Electrical Specifications | 186
Calculating AC Power Requirements for MX2020 Routers | 186
Mapping Input Power from AC Power Distribution Modules to AC Power Supply Modules on
MX2000 Routers | 190
DC Power Requirements, Specifications, and Guidelines | 193
MX2020 DC Power Requirements | 193
MX2020 DC Power Distribution Description | 201
MX2020 DC Power Distribution (240 V China) Description | 203
MX2000 Router DC Power Subsystem Electrical Specifications | 205
DC Power Supply Input Fuses | 206
vii

MX2000 Router DC (240 V China) Power Subsystem Electrical Specifications | 207
DC Power Supply Input Fuses | 208
Determining DC Power Requirements for Your MX2020 Router | 209
MX 2020 DC Power Subsystem Components | 209
Understanding Power Zones in the MX2020 DC Power Subsystem | 209
Calculating the DC Power Requirements for Your MX2020 Router | 213
DC Power (-48 V) Circuit Breaker Requirements for the MX2020 Router | 215
DC Power (240 V China) Circuit Breaker Requirements for the MX2000 Router | 216
DC Power Cable Specifications for the MX2020 Router | 216
Initial Installation and Configuration
3
Installation Overview | 221
Installing an MX2020 Router Overview | 221
Tools and Parts Required to Unpack the MX2020 Router | 223
Tools Required to Install the MX2020 Router Using a Pallet Jack | 223
Tools Required to Install the MX2020 Router Using a Router Transport Kit | 224
Tools and Parts Required for Connecting an MX2000 Router to Power | 224
Tools and Parts Required to Maintain the MX2020 Hardware Components | 225
Tools and Parts Required for MX2020 Router Connections | 226
Unpacking the Router | 227
Overview of Unpacking the MX2020 Router | 227
Unpacking the MX2020 Router | 228
Verifying the MX2020 Parts Received | 232
Unpacking the Router Transport Kit | 235
Installing the Mounting Hardware | 239
Installing the MX2020 Mounting Hardware for a Four-Post Rack or Cabinet | 239
Installing Cage Nuts, If Needed | 239
Installing the Four-Post Mounting Shelf | 241
Installing the Router | 245
Removing Components from the MX2020 Router Chassis Before Installing it in a Rack | 245
Removing the Power Distribution Modules Before Installing an MX2020 Router | 246
Removing the Power Supply Modules Before Installing an MX2020 Router | 248
viii

Removing the Fan Trays Before Installing an MX2020 Router | 251
Removing the SFBs Before Installing an MX2020 Router | 253
Removing the MPCs with Adapter Card Before Installing an MX2020 Router | 254
Removing the MPCs without an Adapter Card Before Installing an MX2020 Router | 255
Removing the CB-REs Before Installing the MX2020 Router | 256
Installing a MX2020 Router Using a Pallet Jack Overview | 258
Installing the Pallet Jack Attachment | 259
Installing the MX2020 Router Using a Pallet Jack with Attachment | 260
Installing a MX2020 Router Using a Router Transport Kit Overview | 265
Installing the Router Transport Kit on the MX2020 Router | 265
Securing the MX2020 Router to the Router Transport Platform | 268
Installing the MX2020 Router Using a Router Transport Kit | 270
Reinstalling Components in the MX2020 Router After Installing in a Rack | 277
Reinstalling the Power Distribution Modules After Installing the MX2020 Router in a Rack | 278
Reinstalling the Power Supply Modules After Installing the MX2020 Router | 281
Reinstalling the Fan Trays After Installing the MX2020 In a Rack | 283
Reinstalling the SFBs After Installing the MX2020 Router in a Rack | 285
Reinstalling the Adapter Card After Installing the MX2020 Router in a Rack | 286
Reinstalling MPCs After Installing the MX2020 Router in a Rack | 287
Reinstalling the CB-REs After Installing the MX2020 Router in a Rack | 288
Connecting the MX2020 to Ground | 291
Grounding an MX2000 Router | 291
Providing Power to the MX2020 | 293
Connecting Power to an MX2000 Single-Phase AC Power Distribution Module | 293
Connecting AC Power to an MX2000 Router with Three-Phase Delta AC Power Distribution
Modules | 295
Connecting AC Power to an MX2000 Router with Three-Phase Wye AC Power Distribution
Modules | 300
Mapping Input Power from AC Power Distribution Modules to AC Power Supply Modules on
MX2000 Routers | 304
Installing MX2020 AC Power Supply Modules | 307
Installing MX2000 Router DC Power Supply Modules (-48 V) | 309
Installing MX2000 Router DC Power Supply Modules (240 V China) | 313
ix

Connecting Power to a DC-Powered MX2020 Router with Power Distribution Modules (-48
V) | 317
Connecting Power to a DC-Powered MX2000 Router with DC Power Distribution Modules (240
V China) | 321
Connecting an MX2000 DC Router Power Distribution Module (-48 V) Cable | 322
Connecting an MX2000 DC Router Power Distribution Module (240 V China) Cable | 325
Powering On the DC-Powered (-48 V) MX2020 Router | 327
Powering On the DC-Powered (240 V China) MX2000 Router | 329
Powering On a Three-Phase AC-Powered MX2000 Router | 331
Connecting the MX2020 to the Network | 333
Connecting the MX2020 Router to Management and Alarm Devices | 333
Connecting the MX2020 Router to a Network for Out-of-Band Management | 333
Connecting the MX2020 Router to a Console or Auxiliary Device | 334
Connecting an MX2020 Router to an External Alarm-Reporting Device | 336
Connecting the MX2020 Router to a Network for Out-of-Band Management | 337
Connecting the MX2020 Router to a Console or Auxiliary Device | 338
Connecting an MX2020 Router to an External Alarm-Reporting Device | 340
Connecting the Alarm Relay Wires to the MX2020 Craft Interface | 342
Disconnecting the Alarm Relay Wires from the MX2020 Craft Interface | 343
Connecting MPC or MIC Cables to the MX2020 Router | 344
Configuring the Junos OS Software | 347
Initially Configuring the MX2020 Router | 347
x

Installing, Replacing, and Maintaining MX2020 Router Components
4
Required Tools and Parts | 355
Tools and Parts Required for Replacing MX2020 Hardware Components | 355
Tools and Parts Required to Remove Components from an MX2020 Router | 358
Installing, Removing, and Maintaining Power Components | 359
Replacing an MX2000 Three-Phase Delta AC Power Distribution Module | 359
Removing an MX2000 Three-Phase Delta AC Power Distribution Module | 359
Installing an MX2000 Router Three-Phase Delta AC Power Distribution Module | 365
Replacing an MX2020 Three-Phase Wye AC Power Distribution Module | 372
Removing an MX2000 Three-Phase Wye AC Power Distribution Module | 372
Installing an MX2000 Router Three-Phase Wye AC Power Distribution Module | 377
Removing an MX2000 Single-Phase AC Power Distribution Module | 383
Installing an MX2000 Single-Phase AC Power Distribution Module | 385
Replacing an MX2000 DC Power Distribution Module (-48 V) | 390
Removing an MX2000 Router DC Power Distribution Module (-48 V) | 390
Installing an MX2000 Router DC Power Distribution Module (-48 V) | 394
Replacing an MX2000 DC Power Distribution Module (240 V China) | 396
Removing an MX2000 Router DC Power Distribution Module (240 V China) | 397
Installing an MX2000 Router DC Power Distribution Module (240 V China) | 400
Replacing an MX2020 DC Power Supply Module (-48 V) | 402
Removing an MX2000 Router DC Power Supply Module (-48 V) | 402
Installing an MX2020 DC Power Supply Module (-48 V) | 406
Replacing an MX2000 DC Power Supply Module (240 V China) | 408
Removing an MX2000 Router DC Power Supply Module (240 V China) | 408
Installing an MX2000 Router DC Power Supply Module (240 V China) | 410
Replacing an MX2000 AC Power Supply Module | 412
Removing an MX2000 AC Power Supply Module | 412
Installing MX2000 Router AC Power Supply Modules | 415
Maintaining the Power Supply Modules on the MX2000 Line of Routers | 418
Maintaining the MX2020 Power Usage | 424
Converting an MX2000 Router Between AC and DC Power | 433
xi

Installing, Removing, and Maintaining Cooling System Components | 437
Replacing an MX2020 Fan Tray | 437
Removing an MX2020 Fan Tray | 438
Installing an MX2020 Fan Tray | 440
Maintaining the MX2020 Fan Trays | 442
Removing the MX2020 Air Filters | 456
Installing the MX2020 Air Filters | 459
Maintaining the MX2020 Air Filter | 462
Maintaining the MX2020 Air Vents | 463
Removing the MX2020 Air Baffle | 463
Installing the MX2020 Air Baffle | 464
Maintaining the MX2020 Cooling System Components | 465
Maintaining the MX2020 Air Vents | 465
Maintaining the MX2020 Air Filter | 466
Maintaining the MX2020 Air Baffle | 467
Maintaining the MX2020 Fan Trays | 467
Maintaining the MX2020 Cooling System Zones | 481
Maintaining the MX2020 Cooling System Zones | 482
Installing, Removing, and Maintaining Host Subsystem Components | 485
Maintaining the MX2020 Host Subsystem | 485
Maintaining the MX2020 Routing Engines | 485
Maintaining the MX2020 Control Boards | 488
Replacing an MX2000 SFB | 489
Removing an MX2000 SFB | 490
Installing an MX2000 SFB | 492
Maintaining the Switch Fabric Board (SFB) | 499
Replacing an MX2000 CB-RE | 500
Removing a CB-RE from an MX2000 Router | 501
Installing an MX2020 CB-RE | 503
Installing an MX2010 CB-RE | 505
Maintaining the MX2020 Control Boards | 508
Maintaining the MX2020 Routing Engines | 509
xii

Upgrading to the Control Board-Routing Engine REMX2K-X8-64G in a Redundant Host
Subsystem | 511
Taking the Host Subsystem Offline | 512
Removing the Backup CB-RE | 513
Installing the REMX2K-X8-64G CB-RE | 514
Verifying and Configuring the Upgraded CB-RE as the Master | 515
Verifying and Configuring the Upgraded CB-RE as the Backup | 515
Upgrading to the REMX2K-X8-64G CB-RE in a Nonredundant Host Subsystem | 516
Taking the Host Subsystem Offline | 516
Removing the CB-RE | 517
Installing the REMX2K-X8-64G CB-RE | 518
Verifying and Configuring the Upgraded CB-RE | 519
Maintaining the MX2020 Switch Processor Mezzanine Board (SPMB) | 520
Maintaining MX2020 Packet Forwarding Engine Components | 521
Maintaining MX2020 MPCs | 521
Maintaining MX2020 MICs | 525
Maintaining the MX2020 Ethernet Switch | 527
Maintaining Cables That Connect to MX2020 MPCs or MICs | 529
Installing, Removing, and Maintaining Interface Modules— ADCs, MPCs, and MICs | 533
Holding an MPC | 533
Storing an MX2020 MPC | 535
Replacing an MX2020 MPC and Adapter Card (ADC) | 536
Removing an MX2020 MPC with Adapter Card | 537
Removing an MX2020 MPC from the Adapter Card | 539
Removing an MX2020 Adapter Card | 541
Installing an MX2020 Adapter Card (ADC) | 543
Installing an MX2020 MPC into an Adapter Card | 544
Maintaining MX2020 MPCs | 547
Maintaining MX2020 Adapter Cards | 551
Replacing an MX2020 MIC | 553
Removing an MX2020 MIC | 553
Installing an MX2020 MIC | 555
xiii

Installing an MX2020 Dual-Wide MIC | 558
Replacing a MIC Installed on an MPC6E | 561
Removing a MIC from an MPC6E | 561
Installing a MIC on an MPC6E | 562
Maintaining MX2020 MICs | 563
Replacing an SFP or XFP Transceiver on an MX2020 MPC or MIC | 565
Removing an SFP or XFP Transceiver from an MX2020 MPC or MIC | 565
Installing an SFP or XFP Transceiver into an MX2020 MPC or MIC | 567
Installing an SFP or XFP into an MX2000 MPC or MIC | 568
Installing an MX2020 Dual-Wide MIC | 569
Installing a Transceiver | 572
Removing a Transceiver | 574
Replacing a CFP2 Transceiver | 577
Removing a CFP2 Transceiver | 578
Installing a CFP2 Transceiver | 579
Installing, Replacing, and Maintaining the Craft Interface | 581
Removing the MX2020 Craft Interface | 581
Installing the MX2020 Craft Interface | 582
Replacing an MX2020 Extended Craft Interface | 583
Removing an MX2020 Extended Craft Interface | 584
Installing an MX2020 Extended Craft Interface | 585
Replacing the Alarm Relay Wires from the MX2020 Craft Interface | 586
Disconnecting the Alarm Relay Wires from the MX2020 Craft Interface | 586
Connecting the Alarm Relay Wires to the MX2020 Craft Interface | 588
Maintaining and Verifying the Status of the MX2020 Craft Interface | 589
Installing, Removing, and Replacing EMI Covers | 593
Removing the MX2020 Standard EMI Covers | 593
Installing the MX2020 Standard EMI Covers | 594
Replacing the MX2020 Extended EMI Covers | 595
Removing the MX2020 Extended EMI Covers | 595
Installing the MX2020 Extended EMI Cover | 599
Installing the MX2020 Extended EMI Cover | 602
xiv

Installing, Replacing, and Maintaining Cables and Cable Managers | 607
Replacing a Cable on an MX2020 MPC or MIC | 607
Removing a Cable on an MX2020 MPC or MIC | 608
Installing a Cable on an MX2020 MPC or MIC | 609
Maintaining Cables That Connect to MX2020 MPCs or MICs | 612
Removing the MX2020 DC Cable Manager | 614
Installing the MX2020 DC Cable Manager | 615
Replacing the MX2020 Cable Managers | 616
Removing the MX2020 Upper Cable Manager | 617
Removing the MX2020 Lower Cable Manager | 618
Removing the MX2020 DC Cable Manager | 619
Installing the MX2020 Lower Cable Manager | 620
Installing the MX2020 Upper Cable Manager | 621
Installing the MX2020 DC Cable Manager | 622
Replacing the MX2020 Extended Cable Managers | 623
Removing the MX2020 Upper Extended Cable Manager | 624
Removing the MX2020 Lower Extended Cable Manager | 625
Removing the MX2020 Extended DC Cable Manager | 625
Installing the MX2020 Upper Extended Cable Manager | 626
Installing the Lower MX2020 Extended Cable Manager | 627
Installing the MX2020 Extended DC Cable Manager | 628
Removing the MX2020 Lower Cable Manager | 629
Installing the MX2020 Lower Cable Manager | 630
Removing the MX2020 Upper Cable Manager | 631
Installing the MX2020 Upper Cable Manager | 632
Replacing an MX2020 Three-Phase Delta AC Power Cord | 633
Removing an MX2020 Three-Phase Delta AC Power Cord | 634
Installing an MX2020 Three-Phase Delta AC Power Cord | 636
Replacing an MX2020 Three-Phase Wye AC Power Cord | 641
Removing an MX2020 Three-Phase Wye AC Power Cord | 641
Installing an MX2000 Three-Phase Wye AC Power Cord | 644
Replacing an MX2020 DC Power Distribution Module Cable | 648
Disconnecting an MX2020 DC Power Distribution Module Cable | 649
Connecting an MX2000 DC Router Power Distribution Module (-48 V) Cable | 650
xv

Connecting a Device to a Management Console by Using an RJ-45 Connector | 653
Connecting a Fiber-Optic Cable | 654
Disconnecting a Fiber-Optic Cable | 655
Maintaining Fiber-Optic Cables | 656
Powering Off the Router | 659
Powering Off the AC-Powered MX2000 Router | 659
Powering Off the DC-Powered MX2000 Router | 660
Maintaining the Chassis and Components | 663
Routine Maintenance Procedures for the MX2020 Router | 663
Taking an MX2000 Host Subsystem Offline | 664
Maintaining the MX2020 Chassis FRU Power On Sequence | 666
Maintaining and Verifying the Status of the MX2020 Router Components | 667
Maintaining the MX2020 Ethernet Switch | 667
Maintaining and Verifying the MX2020 Router Version | 670
Troubleshooting Hardware
5
Troubleshooting Components | 675
MX2020 Troubleshooting Resources | 675
Command-Line Interface | 675
Chassis and Interface Alarm Messages | 676
Alarm Relay Contacts | 676
Craft Interface LEDs | 677
Component LEDs | 677
Troubleshooting the MX2020 Cooling System | 678
Troubleshooting the MX2020 Host Subsystems | 681
Troubleshooting the MX2020 MICs | 681
Troubleshooting a Modular Port Concentrator (MPC) | 683
Troubleshooting the MX2000 Router Power System | 686
xvi

Contacting Customer Support and Returning the Chassis or Components
6
Contacting Customer Support | 705
Contacting Customer Support | 705
Locating Component Serial Numbers | 707
Displaying MX2020 Router Components and Serial Numbers | 707
MX2020 CB-RE Serial Number Label | 716
MX2020 Craft Interface Serial Number Label | 717
MX2020 Fan Tray Serial Number Label | 718
MX2020 MIC Serial Number Label | 719
MX2020 MPC Serial Number Label | 720
MX2020 Power Distribution Module Serial Number Label | 721
MX2020 Power Supply Module Serial Number Label | 723
MX2020 SFB Serial Number Label | 726
Packing and Returning Components | 727
Contacting Customer Support to Obtain Return Material Authorization | 727
Guidelines for Packing Hardware Components for Shipment | 728
Packing the MX2020 Router for Shipment | 728
Returning a Hardware Component to Juniper Networks, Inc. | 732
Safety and Compliance Information
7
General Safety Guidelines and Warnings | 737
General Safety Guidelines and Warnings | 737
Definitions of Safety Warning Levels | 738
Qualified Personnel Warning | 741
Fire Safety Requirements | 742
Fire Suppression | 742
Fire Suppression Equipment | 742
Warning Statement for Norway and Sweden | 743
Installation and Maintenance Safety Guidelines and Warnings | 745
Installation Instructions Warning | 746
Chassis and Component Lifting Guidelines | 746
xvii

Ramp Warning | 747
Rack-Mounting and Cabinet-Mounting Warnings | 747
Grounded Equipment Warning | 753
Radiation and Laser Warnings | 755
Laser and LED Safety Guidelines and Warnings | 755
General Laser Safety Guidelines | 755
Class 1 Laser Product Warning | 756
Class 1 LED Product Warning | 757
Laser Beam Warning | 758
Radiation from Open Port Apertures Warning | 759
Maintenance and Operational Safety Guidelines and Warnings | 761
Maintenance and Operational Safety Guidelines and Warnings | 761
Battery Handling Warning | 762
Jewelry Removal Warning | 763
Lightning Activity Warning | 765
Operating Temperature Warning | 766
Product Disposal Warning | 768
Electrical Safety Guidelines and Warnings | 769
General Electrical Safety Guidelines and Warnings | 769
Prevention of Electrostatic Discharge Damage | 770
AC Power Electrical Safety Guidelines | 772
AC Power Disconnection Warning | 773
DC Power Copper Conductors Warning | 774
DC Power Disconnection Warning | 775
DC Power Grounding Requirements and Warning | 777
DC Power Wiring Sequence Warning | 779
DC Power Wiring Terminations Warning | 782
Midplane Energy Hazard Warning | 784
Multiple Power Supplies Disconnection Warning | 785
Action to Take After an Electrical Accident | 785
xviii

Agency Approvals and Compliance Statements | 787
Agency Approvals and Compliance Statements for the MX2020 Router | 787
Agency Approvals for MX2020 Routers | 787
Compliance Statements for NEBS for the MX2020 Router | 789
Compliance Statements for EMC Requirements for the MX2020 Router | 789
Canada | 789
European Community | 789
Israel | 790
Japan | 790
United States | 790
Compliance Statements for Environmental Requirements | 790
Compliance Statements for EMC Requirements | 791
Canada | 791
European Community | 791
Israel | 791
Japan | 792
United States | 792
Compliance Statements for Environmental Requirements | 792
Compliance Statements for NEBS | 792
xix

About the Documentation
IN THIS SECTION
Documentation and Release Notes | xxi
Using the Examples in This Manual | xxi
Documentation Conventions | xxiii
Documentation Feedback | xxvi
Requesting Technical Support | xxvi
Use this guide to install hardware and perform initial software configuration, routine maintenance, and
troubleshooting for the MX2020 Universal Routing Platform. After completing the installation and basic
configuration procedures covered in this guide, refer to the Junos OS documentation for information about
further software configuration.
Documentation and Release Notes
To obtain the most current version of all Juniper Networks®technical documentation, see the product
documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.
If the information in the latest release notes differs from the information in the documentation, follow the
product Release Notes.
Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts.
These books go beyond the technical documentation to explore the nuances of network architecture,
deployment, and administration. The current list can be viewed at https://www.juniper.net/books.
Using the Examples in This Manual
If you want to use the examples in this manual, you can use the load merge or the load merge relative
command. These commands cause the software to merge the incoming configuration into the current
candidate configuration. The example does not become active until you commit the candidate configuration.
xxi