Juniper MX2020 Installation instructions

MX2020 3D Universal Edge Router Hardware
Guide
Modified: 2015-11-18
Copyright © 2015, Juniper Networks, Inc.

Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Copyright © 2015, Juniper Networks, Inc. All rights reserved.
Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United
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trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify,
transfer, or otherwise revise this publication without notice.
MX2020 3D Universal Edge Router Hardware Guide
Copyright © 2015, 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
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 © 2015, Juniper Networks, Inc.ii

Table of Contents
AbouttheDocumentation..........................................xxvii
Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii
SupportedPlatforms...........................................xxvii
DocumentationConventions.....................................xxvii
Documentation Feedback.......................................xxix
RequestingTechnicalSupport....................................xxx
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . xxx
OpeningaCasewithJTAC....................................xxx
Part 1 Overview
Chapter1 MX2020RouterOverview...........................................3
MX2020RouterOverview.............................................3
Chapter 2 System Overview and Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MX2020ChassisDescription...........................................5
MX2020BackplaneDescription........................................11
MX2020ComponentRedundancy.....................................12
MX2020Field-ReplaceableUnits......................................16
MX2020 Router Hardware Components and CLI Terminology . . . . . . . . . . . . . . . . 17
Chapter 3 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
MX2020ChassisDescription..........................................21
MX2020BackplaneDescription.......................................27
MX2020ComponentRedundancy.....................................28
MX2020Field-ReplaceableUnits......................................32
MX2020 Router Hardware Components and CLI Terminology . . . . . . . . . . . . . . . 33
Chapter4 AlarmandDisplayComponents.....................................37
MX2020CraftInterfaceDescription....................................37
MX2020 Component LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . 39
MX2020 Host Subsystem LEDs and Buttons on the Craft Interface . . . . . . . 39
MX2020 Power Supply Module LEDs on the Craft Interface . . . . . . . . . . . . . 40
MX2020 Line Card LEDs and Buttons on the Craft Interface . . . . . . . . . . . . . 40
MX2020 SFB LED and Buttons on the Craft Interface . . . . . . . . . . . . . . . . . . 40
MX2020 Fan Tray LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . 41
MX2020 Alarm Relay Contacts on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . 41
MX2020 Alarm LEDs and Alarm Cutoff/Lamp Test Button . . . . . . . . . . . . . . . . . . 42
iiiCopyright © 2015, Juniper Networks, Inc.

Chapter5 CableandRackManagement......................................45
MX2020CableManagerDescription...................................45
Standard Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Extended Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
MX2020Rack-MountingHardware....................................50
Chapter6 CoolingSystem...................................................53
MX2020CoolingSystemDescription...................................53
MX2020FanTrayLED...............................................56
Chapter7 HostSubsystemComponents......................................57
MX2020HostSubsystemDescription..................................57
SupportedCB-RE...............................................58
CB-RE Function ................................................58
CB-RE Slots ...................................................58
CB-REInterfacePorts............................................58
MX2020CB-REDescription..........................................59
RE-MX2000-1800x4 CB-RE Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
RE-MX2000-1800x4 CB-RE Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
RE-MX2000-1800x4 CB-RE Boot Sequence . . . . . . . . . . . . . . . . . . . . . . . . . 62
MX2020CB-RELEDs................................................62
MX2020 Switch Fabric Board Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
SFBSlots......................................................64
SFB Redundancy ...............................................64
SFBComponents...............................................64
MX2020SwitchFabricBoardLED.....................................65
Chapter 8 Interface Modules—ADCs, MPCs, and MICs . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
MX2020 Adapter Card (ADC) Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
MX2020 Modular Port Concentrator Description . . . . . . . . . . . . . . . . . . . . . . . . . . 68
MPC Components ..............................................69
MX2020 Modular Port Concentrator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
MPCs Supported by MX240, MX480, MX960, MX2010, and MX2020
Routers .......................................................70
MX2020MPCTerminology...........................................73
MX2020 Modular Interface Card Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
MICsSupportedbyMXSeriesRouters..................................74
MX2020ModularInterfaceCardLEDs..................................78
MX2020 Port and Interface Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Chapter9 PowerSubsystem.................................................83
MX2020 Power Subsystem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
MX2020PowerMidplaneDescription..................................85
MX2020 Three-Phase Delta AC Power Distribution Module Description . . . . . . . 86
MX2020 Three-Phase Wye AC Power Distribution Module Description . . . . . . . . 88
MX2010 Seven-Feed Single Phase AC Power Distribution Module
Description ....................................................90
MX2010 DC Power Distribution Module Description . . . . . . . . . . . . . . . . . . . . . . . 90
MX2020 Three-Phase Delta and Wye AC Power Distribution Module LEDs . . . . . 91
Copyright © 2015, Juniper Networks, Inc.iv
MX2020 3D Universal Edge Router Hardware Guide

MX2020 Nine-Feed Single Phase AC Power Distribution Module Description . . . 92
MX2020ACPowerSupplyModuleLEDs................................93
MX2020 DC Power Distribution Module Description . . . . . . . . . . . . . . . . . . . . . . . 94
MX2020 DC Power Distribution Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
MX2020 DC Power Supply Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
MX2020DCPowerSupplyModuleLEDs................................98
Part 2 Site Planning, Preparation, and Specifications
Chapter 10 Planning and Preparing the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Overview of Preparing the Site for the MX2020 Router . . . . . . . . . . . . . . . . . . . . 103
MX2020 Cabinet Airflow Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
MX2020 Cabinet Size and Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . 106
MX2020ChassisMovingGuidelines...................................107
MX2020PhysicalSpecifications......................................108
MX2020RackRequirements.........................................110
RackSizeandStrength..........................................110
SpacingofMountingBracketHoles.................................112
Connection to the Building Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
MX2020 Moving Requirements and Guidelines Using a Router Transport Kit . . . 113
Router Transport Kit Turning Radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Router Transport Kit Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
MX2020 Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
MX2020 Router Grounding Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
MX2020 Chassis Grounding Points Specifications . . . . . . . . . . . . . . . . . . . . . 117
MX2020 Router Grounding Cable Lug Specifications . . . . . . . . . . . . . . . . . . 118
MX2020 Router Grounding Cable Specifications . . . . . . . . . . . . . . . . . . . . . . 119
MX2020SitePreparationChecklist....................................120
Clearance Requirements for Airflow and Hardware Maintenance for the MX2020
Router ........................................................121
Rack-MountingRequirements........................................123
Chapter 11 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Understanding Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion . . . . 127
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . . . . . . 127
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 128
Calculating Power Budget and Power Margin for Fiber-Optic Cables . . . . . . . . . 128
Calculating Power Budget for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 129
Calculating Power Margin for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 129
CB-RE Interface Cable and Wire Specifications for MX Series Routers . . . . . . . . 130
Installing an MX2020 Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . 131
Network Cable and Transceiver Overview for ACX Series, M Series, and MX Series
Routers.......................................................134
Supported Network Interface Standards by Transceiver for ACX, M, MX, and T
SeriesRouters.................................................135
Chapter12 PinoutSpecifications.............................................145
RJ-45 Connector Pinouts for MX Series CB-RE Auxiliary and Console Ports . . . . 145
RJ-45 Connector Pinouts for an MX Series CB-RE Management Port . . . . . . . . . 146
vCopyright © 2015, Juniper Networks, Inc.
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Chapter 13 AC Power Requirements, Specifications, and Guidelines . . . . . . . . . . . . . . 147
MX2020ACPowerRequirements.....................................147
MX2020 AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
MX2020 AC Power Subsystem Electrical Specifications . . . . . . . . . . . . . . . . . . . 158
MX2020 AC Power Supply Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . 158
MX2020 Router Grounding Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
MX2020 Chassis Grounding Points Specifications . . . . . . . . . . . . . . . . . . . . . 161
MX2020 Router Grounding Cable Lug Specifications . . . . . . . . . . . . . . . . . . 161
MX2020 Router Grounding Cable Specifications . . . . . . . . . . . . . . . . . . . . . 162
MX2020 Three-Phase Delta AC Power Distribution Module Specifications . . . . 163
MX2020 Three-Phase Wye AC Power Distribution Module Specifications . . . . . 163
MX2020 Seven-Feed AC Power Distribution Module Specifications . . . . . . . . . . 164
MX2010 Nine-Feed AC Power Distribution Module Specifications . . . . . . . . . . . 164
Calculating AC Power Requirements for MX2020 Routers . . . . . . . . . . . . . . . . . . 165
Mapping Input Power from AC Power Distribution Modules to AC Power Supply
ModulesontheMX2020Router...................................168
Chapter 14 DC Power Requirements, Specifications, and Guidelines . . . . . . . . . . . . . . . 171
MX2020DCPowerRequirements......................................171
MX2020 DC Power Distribution Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
MX2020 DC Power Subsystem Electrical Specifications . . . . . . . . . . . . . . . . . . . 179
Calculating DC Power Requirements for MX2020 Routers . . . . . . . . . . . . . . . . . 180
DC Power Circuit Breaker Requirements for the MX2020 Router . . . . . . . . . . . . . 184
DC Power Cable Specifications for the MX2020 Router . . . . . . . . . . . . . . . . . . . . 184
Part 3 Initial Installation and Configuration
Chapter15 InstallationOverview.............................................189
Installing an MX2020 Router Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Tools and Parts Required to Unpack the MX2020 Router . . . . . . . . . . . . . . . . . . 190
Tools Required to Install the MX2020 Router Using a Pallet Jack . . . . . . . . . . . . . 191
Tools Required to Install the MX2020 Router Using a Router Transport Kit . . . . . 191
Tools and Parts Required for Connecting the MX2020 Router to Power . . . . . . . 192
Tools and Parts Required to Maintain the MX2020 Hardware Components . . . . 193
Tools and Parts Required for MX2020 Router Connections . . . . . . . . . . . . . . . . . 193
Chapter16 UnpackingtheRouter.............................................195
Overview of Unpacking the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
UnpackingtheMX2020Router.......................................195
Verifying the MX2020 Parts Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
UnpackingtheRouterTransportKit....................................201
Chapter 17 Installing the Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Installing the MX2020 Mounting Hardware for a Four-Post Rack or Cabinet . . . 205
InstallingCageNuts,IfNeeded...................................205
Installing the Four-Post Mounting Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Copyright © 2015, Juniper Networks, Inc.vi
MX2020 3D Universal Edge Router Hardware Guide

Chapter18 InstallingtheRouter.............................................209
Removing Components from the MX2020 Router Chassis Before Installing It In
aRack.......................................................209
Removing the Power Distribution Modules Before Installing an MX2020
Router....................................................210
Removing the Power Supply Modules Before Installing an MX2020
Router ....................................................211
Removing the Fan Trays Before Installing an MX2020 Router . . . . . . . . . . . . 213
Removing the SFBs Before Installing an MX2020 Router . . . . . . . . . . . . . . . 214
Removing the MPCs with Adapter Card Before Installing an MX2020
Router ....................................................216
Removing the MPCs without an Adapter Card Before Installing an MX2020
Router ....................................................216
Removing the CB-REs Before Installing the MX2020 Router . . . . . . . . . . . . . 217
Installing a MX2020 Router Using a Pallet Jack Overview . . . . . . . . . . . . . . . . . . 219
Installing the Pallet Jack Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Installing the MX2020 Router Using a Pallet Jack with Attachment . . . . . . . . . . 220
Installing a MX2020 Router Using a Router Transport Kit Overview . . . . . . . . . . 224
Installing the Router Transport Kit on the MX2020 Router . . . . . . . . . . . . . . . . . 224
Securing the MX2020 Router to the Router Transport Platform . . . . . . . . . . . . . 226
Installing the MX2020 Router Using a Router Transport Kit . . . . . . . . . . . . . . . . 229
Reinstalling Components in the MX2020 Chassis After Installing It In a Rack . . 236
Reinstalling the Power Distribution Modules After Installing the MX2020 In
aRack....................................................237
Reinstalling the Power Supply Modules After Installing the MX2020 In a
Rack .....................................................239
Reinstalling the Fan Trays After Installing the MX2020 In a Rack . . . . . . . . 240
Reinstalling the SFBs After Installing the MX2020 In a Rack . . . . . . . . . . . . 241
Reinstalling the Adapter Card After Installing the MX2020 In a Rack . . . . . 242
Reinstalling the MPCs After Installing the MX2020 In a Rack . . . . . . . . . . . 243
Reinstalling the CB-REs After Installing the MX2020 In a Rack . . . . . . . . . . 244
Chapter 19 Connecting the Router to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
GroundingtheMX2020Router.......................................247
Connecting AC Power to an MX2020 Router with Three-Phase Delta AC Power
Distribution Modules ...........................................249
Connecting AC Power to an MX2020 Router with Three-Phase Wye AC Power
DistributionModules............................................252
Mapping Input Power from AC Power Distribution Modules to AC Power Supply
ModulesontheMX2020Router..................................256
Installing MX2020 AC Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Powering On the AC-Powered MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Connecting Power to a DC-Powered MX2020 Router with Power Distribution
Modules......................................................262
Installing MX2020 DC Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Connecting an MX2020 DC Power Distribution Module Cable . . . . . . . . . . . . . . 268
Connect Power to a Single-Phase Seven-Feed AC Power Distribution
Module.......................................................270
viiCopyright © 2015, Juniper Networks, Inc.
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Connect Power to a Single-Phase Seven-Feed AC Power Distribution
Module.......................................................270
Connect Power to a Seven-Feed DC Power Distribution Module . . . . . . . . . . . . . 271
Powering On the DC-Powered MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Chapter 20 Connecting the Router to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Connecting the MX2020 Router to Management and Alarm Devices . . . . . . . . . 275
Connecting the MX2020 Router to a Network for Out-of-Band
Management ..............................................275
Connecting the MX2020 Router to a Console or Auxiliary Device . . . . . . . . 276
Connecting an MX2020 Router to an External Alarm-Reporting Device . . . 277
Connecting the MX2020 Router to a Network for Out-of-Band Management . . 278
Connecting the MX2020 Router to a Console or Auxiliary Device . . . . . . . . . . . . 279
Connecting an MX2020 Router to an External Alarm-Reporting Device . . . . . . 280
Connecting the Alarm Relay Wires to the MX2020 Craft Interface . . . . . . . . . . . 282
Disconnecting the Alarm Relay Wires from the MX2020 Craft Interface . . . . . . 283
Connecting MPC or MIC Cables to the MX2020 Router . . . . . . . . . . . . . . . . . . . . 284
Chapter 21 Initially Configuring the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Initially Configuring the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Chapter 22 Installing and Replacing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Installing an MX2020 AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . 293
InstallinganMX2020AdapterCard...................................295
InstallingtheMX2020AirFilter.......................................296
Installing the MX2020 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Installing an MX2020 Extended Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 300
InstallinganMX2020CB-RE.........................................301
Installing the MX2020 DC Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Installing an MX2020 DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . 305
Installing an MX2020 Dual-Wide MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Installing the MX2020 Standard EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Installing the MX2020 Extended EMI Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
InstallinganMX2020FanTray........................................312
InstallingtheMX2020AirBaffle......................................313
Installing the MX2020 Lower Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
InstallinganMX2020MIC...........................................315
InstallinganMX2020SFB...........................................318
Installing an MX2020 Three-Phase Delta AC Power Distribution Module . . . . . . 323
Installing an MX2020 Three-Phase Wye AC Power Distribution Module . . . . . . 328
Installing the MX2020 Upper Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Installing an SFP or XFP Transceiver into an MX2020 MPC or MIC . . . . . . . . . . . 333
Part 4 Maintaining the Chassis and Components
Chapter23 Maintaining Components .........................................337
Maintaining the MX2020 Adapter Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Maintaining Cables That Connect to MX2020 MPCs or MICs . . . . . . . . . . . . . . . 338
Maintaining and Verifying the Status of the MX2020 Router Components . . . . 340
MaintainingtheMX2020AirFilter.....................................341
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MX2020 3D Universal Edge Router Hardware Guide

MaintainingtheMX2020AirVents....................................341
Maintaining the MX2020 Chassis FRU Power On Sequence . . . . . . . . . . . . . . . . 342
Maintaining the MX2020 Control Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Maintaining the MX2020 Cooling System Components . . . . . . . . . . . . . . . . . . . 343
MaintainingtheMX2020AirVents................................344
MaintainingtheMX2020AirFilter.................................344
Maintaining the MX2020 Air Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
MaintainingtheMX2020FanTrays................................345
Maintaining the MX2020 Cooling System Zones . . . . . . . . . . . . . . . . . . . . . 355
Maintaining the MX2020 Cooling System Zones . . . . . . . . . . . . . . . . . . . . . . . . . 356
Maintaining the MX2020 Ethernet Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
MaintainingtheMX2020FanTrays...................................359
MaintainingtheMX2020AirBaffle....................................370
Maintaining the MX2020 Host Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Maintaining the MX2020 Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Maintaining the MX2020 Control Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
MaintainingMX2020MICs...........................................374
MaintainingMX2020MPCs..........................................375
Maintaining MX2020 Packet Forwarding Engine Components . . . . . . . . . . . . . . 378
MaintainingMX2020MPCs......................................378
MaintainingMX2020MICs.......................................382
Maintaining the MX2020 Ethernet Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Maintaining Cables That Connect to MX2020 MPCs or MICs . . . . . . . . . . . . 385
Maintaining the MX2020 Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . 386
Maintaining the MX2020 Power Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391
Maintaining the MX2020 Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
MaintainingtheMX2020SFB........................................397
Maintaining the MX2020 Switch Processor Mezzanine Board . . . . . . . . . . . . . . 398
Maintaining and Verifying the MX2020 Router Version . . . . . . . . . . . . . . . . . . . . 398
Maintaining and Verifying the Status of the MX2020 Craft Interface . . . . . . . . . 399
Taking an MX2020 Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
Effect of Taking the MX2020 Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . 402
HoldinganMX2020MPC...........................................404
StoringanMX2020MPC...........................................406
Routine Maintenance Procedures for the MX2020 Router . . . . . . . . . . . . . . . . . 407
Chapter 24 Packing and Returning Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Guidelines for Packing Router Components for Shipment . . . . . . . . . . . . . . . . . 409
Packing the MX2020 Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Returning a Hardware Component to Juniper Networks, Inc. . . . . . . . . . . . . . . . . 412
Chapter25 Replacing Components ...........................................415
Tools and Parts Required for Replacing MX2020 Hardware Components . . . . . 416
Tools and Parts Required to Remove Components from an MX2020 Router . . . 418
ReplacinganMX2020CB-RE........................................418
RemovinganMX2020CB-RE.....................................419
InstallinganMX2020CB-RE.....................................420
Replacing the Alarm Relay Wires from the MX2020 Craft Interface . . . . . . . . . . 422
Disconnecting the Alarm Relay Wires from the MX2020 Craft Interface . . . 422
Connecting the Alarm Relay Wires to the MX2020 Craft Interface . . . . . . . 423
ixCopyright © 2015, Juniper Networks, Inc.
Table of Contents

Replacing a Cable on an MX2020 MPC or MIC . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
Removing a Cable on an MX2020 MPC or MIC . . . . . . . . . . . . . . . . . . . . . . . 424
Installing a Cable on an MX2020 MPC or MIC . . . . . . . . . . . . . . . . . . . . . . . . 425
Replacing an MX2020 AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . 428
Removing an MX2020 AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . 428
Installing an MX2020 AC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . 429
ReplacingtheMX2020AirFilters......................................431
RemovingtheMX2020AirFilter...................................431
InstallingtheMX2020AirFilter...................................434
Replacing the MX2020 Cable Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Removing the MX2020 Upper Cable Manager . . . . . . . . . . . . . . . . . . . . . . . 438
Removing the MX2020 Lower Cable Manager . . . . . . . . . . . . . . . . . . . . . . . 438
Removing the MX2020 DC Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 439
Installing the MX2020 Lower Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . 440
Installing the MX2020 Upper Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . 441
Installing the MX2020 DC Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 442
Replacing the MX2020 Extended Cable Managers . . . . . . . . . . . . . . . . . . . . . . . 443
Removing the MX2020 Upper Extended Cable Manager . . . . . . . . . . . . . . . 443
Removing the MX2020 Lower Extended Cable Manager . . . . . . . . . . . . . . . 444
Removing the MX2020 Extended DC Cable Manager . . . . . . . . . . . . . . . . . 445
Installing the MX2020 Upper Extended Cable Manager . . . . . . . . . . . . . . . 446
Installing the Lower MX2020 Extended Cable Manager . . . . . . . . . . . . . . . . 447
Installing the MX2020 Extended DC Cable Manager . . . . . . . . . . . . . . . . . . 448
RemovinganMX2020CB-RE........................................449
Replacing the MX2020 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450
Removing the MX2020 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451
Installing the MX2020 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451
Replacing an MX2020 Extended Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . 452
Removing an MX2020 Extended Craft Interface . . . . . . . . . . . . . . . . . . . . . . 452
Installing an MX2020 Extended Craft Interface . . . . . . . . . . . . . . . . . . . . . . 453
Replacing an MX2020 DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . 454
Removing an MX2020 DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . 454
Installing an MX2020 DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . 456
Replacing an MX2020 DC Power Distribution Module . . . . . . . . . . . . . . . . . . . . . 457
Removing an MX2020 DC Power Distribution Module . . . . . . . . . . . . . . . . . 457
Installing an MX2020 DC Power Distribution Module . . . . . . . . . . . . . . . . . . 459
Replacing an MX2020 DC Power Distribution Module Cable . . . . . . . . . . . . . . . 462
Disconnecting an MX2020 DC Power Distribution Module Cable . . . . . . . . 463
Connecting an MX2020 DC Power Distribution Module Cable . . . . . . . . . . 463
Replacing the MX2020 Standard EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . 465
Removing the MX2020 Standard EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . 465
Installing the MX2020 Standard EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . 466
Replacing the MX2020 Extended EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467
Removing the MX2020 Extended EMI Covers . . . . . . . . . . . . . . . . . . . . . . . . 467
Installing the MX2020 Extended EMI Cover . . . . . . . . . . . . . . . . . . . . . . . . . 469
ReplacinganMX2020FanTray.......................................471
RemovinganMX2020FanTray...................................472
InstallinganMX2020FanTray....................................473
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MX2020 3D Universal Edge Router Hardware Guide