Juniper T640 Installation instructions

T640 Core Router Hardware Guide
Modified: 2017-03-31
Copyright © 2017, Juniper Networks, Inc.

Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Copyright © 2017, 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
States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other
trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify,
transfer, or otherwise revise this publication without notice.
T640 Core Router Hardware Guide
Copyright © 2017, 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 © 2017, Juniper Networks, Inc.ii

Table of Contents
AbouttheDocumentation...........................................xxix
Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix
Supported Platforms ...........................................xxix
DocumentationConventions.....................................xxix
Documentation Feedback.......................................xxxi
RequestingTechnicalSupport...................................xxxii
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . xxxii
OpeningaCasewithJTAC...................................xxxii
Part 1 Overview
Chapter 1 System Overview and Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
T640RouterDescription..............................................3
T640ComponentRedundancy.........................................4
T640SystemArchitectureDescription...................................5
T640RoutingEngineFunctions........................................5
T640 Packet Forwarding Engine Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DataFlowThroughtheT640Router.....................................7
Chapter2 T640RouterReleaseNotes.........................................11
Outstanding Issues with the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Errata with the T640 Router Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter 3 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
T640HardwareComponentOverview..................................13
T640ChassisDescription............................................15
T640MidplaneDescription...........................................17
T640 Cable Management System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
T640 Connector Interface Panel (CIP) Description . . . . . . . . . . . . . . . . . . . . . . . . 19
CIPComponents................................................19
ManagementPorts..............................................20
AlarmRelayContacts............................................21
T640 Connector Interface Panel (CIP) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
T640CraftInterfaceDescription.......................................22
T640 Craft Interface Alarm LEDs and ACO/LT Button . . . . . . . . . . . . . . . . . . . . . . 23
T640 Craft Interface FPC LEDs and Online/Offline Buttons . . . . . . . . . . . . . . . . . 24
T640 Craft Interface Host Subsystem LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
T640 Craft Interface LCD and Navigation Buttons . . . . . . . . . . . . . . . . . . . . . . . . . 25
T640CraftInterfaceSIBLEDs........................................26
T640 SONET Clock Generators (SCGs) Description . . . . . . . . . . . . . . . . . . . . . . . 27
T640 SONET Clock Generators (SCGs) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
iiiCopyright © 2017, Juniper Networks, Inc.

Chapter 4 Cooling System Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 31
T640CoolingSystemDescription......................................31
Airflow ........................................................31
FanTrays......................................................32
AirFilters......................................................33
PowerSupplyCoolingSystem.....................................33
Chapter 5 Host Subsystem Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . 35
T640HostSubsystemDescription.....................................35
T640RoutingEngineDescription......................................36
T640RE-600Description............................................37
T640RE-600LEDs.................................................39
T640RE-1600Description...........................................39
T640RE-1600LEDs.................................................41
T640RE-C1800Description..........................................42
RE-C1800Components..........................................42
RE-C1800BootOrder............................................42
T640RE-C1800LEDs...............................................43
T640RE-2000Description..........................................44
T640RE-2000LEDs................................................45
RoutingEngineSpecifications.........................................46
SupportedRoutingEnginesbyRouter..................................49
M7iRoutingEngines.............................................50
M10iRoutingEngines............................................50
M40eRoutingEngines............................................51
M120RoutingEngines............................................51
M320RoutingEngines............................................51
MX5, MX10, MX40, and MX80 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . 52
MX104RoutingEngines..........................................52
MX240RoutingEngines..........................................53
MX480RoutingEngines..........................................53
MX960RoutingEngines..........................................54
MX2008RoutingEngines.........................................55
MX2010RoutingEngines.........................................55
MX2020 Supported Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
PTX3000RoutingEngines........................................56
PTX5000RoutingEngines........................................57
T320RoutingEngines............................................57
T640RoutingEngines...........................................58
T1600RoutingEngines..........................................58
T4000RoutingEngines..........................................59
TXMatrixRoutingEngines........................................60
TXMatrixPlusRoutingEngines....................................60
TX Matrix Plus (with 3D SIBs) Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . 61
T640LCC-CBDescription............................................61
T640LCC-CBLEDs.................................................62
T640 Standard Control Boards Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
T640StandardControlBoardsLEDs...................................64
T640 T Series Control Boards (T-CBs) Description . . . . . . . . . . . . . . . . . . . . . . . 64
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T640 Core Router Hardware Guide

T640 T Series Control Boards (T-CBs) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Chapter 6 Line Card Components and Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
T640FPCDescription...............................................67
FPCTerminology................................................68
IdentifyingT640FPCs...........................................69
T640FPCsSupported...............................................77
T640PICDescription................................................79
T640PICsSupported...............................................80
T640End-of-LifePICsSupported.....................................87
T640PIC/FPCCompatibility.........................................89
PIC/FPC Compatibility (Type 1 FPCs and Type 1 PICs) . . . . . . . . . . . . . . . . . . 89
PIC/FPC Compatibility (Type 2 FPCs and Type 2 PICs) . . . . . . . . . . . . . . . . . 90
PIC/FPC Compatibility (Type 3 FPCs and Type 3 PICs) . . . . . . . . . . . . . . . . . 92
PIC/FPC Compatibility (Type 4 FPCs and Type 4 PICs) . . . . . . . . . . . . . . . . . 93
Chapter 7 Power System Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 95
T640PowerSystemDescription......................................95
T640 Two-Input 160-A DC Power Supply Description . . . . . . . . . . . . . . . . . . . . . 96
Two-Input160-ADCPowerSupply.................................96
Two-Input 160-A DC Power Supply Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Two-Input 160-A DC Power Supply Load Sharing and Fault Tolerance . . . . . 97
T640 Two-Input 160-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
T640 Three-Input 240-A DC Power Supply Description . . . . . . . . . . . . . . . . . . . . 99
Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Three-Input 240-A DC Power Supply Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Three-Input 240-A DC Power Supply Load Sharing and Fault Tolerance . . 100
T640 Three-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . 100
T640 Four-Input 240-A DC Power Supply Description . . . . . . . . . . . . . . . . . . . . 102
Four-Input240-ADCPowerSupply................................102
Four-Input 240-A DC Power Supply Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Four-Input 240-A DC Power Supply Load Sharing and Fault Tolerance . . . . 103
T640 Four-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 103
T640 Six-Input DC Power Supply Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
PowerSupplyComponents......................................104
Inputs........................................................105
Redundancy...................................................105
T640 Six-Input DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
T640 Three-Phase Delta and Wye AC Power Supply Description . . . . . . . . . . . . 106
Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Three-PhaseWyeACPowerSupply...............................108
AC Power Supply Load Sharing and Fault Tolerance . . . . . . . . . . . . . . . . . . . 109
T640 Three-Phase Delta and Wye AC Power Supply LEDs . . . . . . . . . . . . . . . . . 109
Chapter 8 Switch Fabric Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 111
T640 Switch Interface Boards (SIBs) Description . . . . . . . . . . . . . . . . . . . . . . . . . 111
vCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Part 2 Site Planning, Preparation, and Specifications
Chapter9 Preparation Overview .............................................117
T640SitePreparationChecklist.......................................117
T640 Chassis Grounding Cable and Lug Specifications . . . . . . . . . . . . . . . . . . . . 118
T640PhysicalSpecifications.........................................119
T640RackRequirements...........................................120
T640 Clearance Requirements for Airflow and Hardware Maintenance . . . . . . . 122
T640EnvironmentalSpecifications...................................122
Chapter 10 DC Power Requirements and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 125
T640 DC Power System Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 125
T640 DC Power Supply Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 126
T640DCPowerSystemRequirements.................................128
T640DCPowerDistribution.........................................130
T640 DC Power Cable and Lug Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Chapter 11 AC Power Requirements and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 135
T640 AC Power System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
T640 Three-Phase Delta AC Power Supply Specifications . . . . . . . . . . . . . . . . . 136
T640 Three-Phase Wye AC Power Supply Specifications . . . . . . . . . . . . . . . . . . 136
T640ACPowerRequirements........................................137
T640ACPowerCordSpecifications...................................139
Chapter 12 Network Cable and Transceiver Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Understanding Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion . . . . 141
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . . . . . . 141
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 141
Calculating Power Budget and Power Margin for Fiber-Optic Cables . . . . . . . . . 142
Calculating Power Budget for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 142
Calculating Power Margin for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 143
Chapter 13 Management Cable Specifications and Pinouts . . . . . . . . . . . . . . . . . . . . . . 145
T640 Routing Engine Interface Cable and Wire Specifications . . . . . . . . . . . . . . 145
T640 DB-9 Connector Pinouts for the Routing Engine AUXILIARY and CONSOLE
Ports.........................................................146
T640 RJ-45 Connector Pinouts for the Routing Engine ETHERNET Port . . . . . . 146
Part 3 Initial Installation and Configuration
Chapter14 InstallationOverview..............................................151
T640RouterInstallationSummary....................................151
Chapter15 UnpackingtheT640..............................................153
Tools and Parts Required to Unpack the T640 Router . . . . . . . . . . . . . . . . . . . . . 153
UnpackingtheT640Router..........................................153
Verifying the T640 Router Parts Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Chapter 16 Installing the Rack Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Installing the T640 Mounting Hardware for a Four-Post Rack or Cabinet . . . . . . 159
Installing the T640 Mounting Hardware for an Open-Frame Rack . . . . . . . . . . . 162
Copyright © 2017, Juniper Networks, Inc.vi
T640 Core Router Hardware Guide

Chapter 17 Installing the T640 Router into a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Overview of Installing the T640 Router in a Rack . . . . . . . . . . . . . . . . . . . . . . . . . 167
Chapter 18 Installing the T640 Router With a Mechanical Lift . . . . . . . . . . . . . . . . . . . . 169
Overview of Installing a T640 Router Using a Mechanical Lift . . . . . . . . . . . . . . . 169
Tools Required to Install the T640 Router Using a Mechanical Lift . . . . . . . . . . . 169
Installing the T640 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . . . . 170
Removing the T640 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Attaching the T640 Router Installation Handle . . . . . . . . . . . . . . . . . . . . . . . 171
Mounting the T640 Chassis Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . 173
Removing the T640 Router Installation Handle and Reinstalling the Power
Supplies ..................................................176
Chapter 19 Installing the T640 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . 179
Overview of Installing the T640 Router Without a Mechanical Lift . . . . . . . . . . . 179
Tools and Parts Required to Install the T640 Router Without a Mechanical
Lift ..........................................................180
Removing Components from the T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . 180
RemovingtheT640PowerSupplies................................181
RemovingtheT640SIBs........................................182
RemovingtheT640ControlBoards................................183
RemovingtheT640SCGs.......................................184
Removing the T640 Standard or Quiet Rear Fan Tray . . . . . . . . . . . . . . . . . . 185
Removing the T640 Cable Management System . . . . . . . . . . . . . . . . . . . . . 186
Removing the T640 Standard or Quiet Front Fan Trays . . . . . . . . . . . . . . . . 187
RemovingtheT640FPCs........................................188
Attaching the T640 Router Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Installing the T640 Chassis in the Rack Manually . . . . . . . . . . . . . . . . . . . . . . . . . 192
Reinstalling Components in the T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Reinstalling the T640 Standard or Quiet Rear Fan Tray . . . . . . . . . . . . . . . . 196
ReinstallingtheT640SCGs......................................197
Reinstalling the T640 Control Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
ReinstallingtheT640SIBs.......................................199
Reinstalling the T640 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
ReinstallingtheT640FPCs......................................201
Reinstalling T640 Standard or Quiet Front Fan Trays . . . . . . . . . . . . . . . . . . 203
Reinstalling the T640 Cable Management System . . . . . . . . . . . . . . . . . . . 205
Chapter 20 Connecting the T640 to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Tools and Parts Required to Ground the T640 Router . . . . . . . . . . . . . . . . . . . . . 207
Connecting the T640 Grounding Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Chapter 21 Connecting the T640 to External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Overview of Connecting the T640 Router to External Devices . . . . . . . . . . . . . . 209
Tools and Parts Required to Connect the T640 Router to External Devices . . . . 210
Connecting the T640 Router to a Management Console or Auxiliary Device . . . 210
Connecting the T640 Router to a Network for Out-of-Band Management . . . . . 212
Connecting the T640 Router to an External Alarm-Reporting Device . . . . . . . . . 214
Connecting the T640 Router to an External Clocking Device . . . . . . . . . . . . . . . . 215
Connecting PIC Cables to the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
viiCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Chapter22 ProvidingPowertotheT640......................................219
Tools and Parts Required to Provide Power to the T640 Router . . . . . . . . . . . . . 219
Connecting DC Power to a T640 Router with Two-Input 160-A DC Power
Supplies .....................................................220
Connecting DC Power to a T640 Router with Three-input 240-A DC Power
Supplies(2-INPUTMode).......................................222
Connecting DC Power to a T640 Router with Four-Input 240-A DC Power
Supplies......................................................224
Connecting DC Power to the T640 Router (Six 60-A Inputs to Six-Input DC
Power Supplies) ...............................................227
Connecting DC Power to the T640 Router (Five 60-A Inputs to Six-Input DC
PowerSupplies)................................................231
Connecting DC Power to the T640 Router (Four 60-A Inputs to Six-Input DC
PowerSupplies)...............................................236
Powering On a DC-Powered T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Connecting AC Power to a T640 Router with Three-Phase Delta AC Power
Supplies ......................................................241
Connecting AC Power to a T640 Router with Three-Phase Wye AC Power
Supplies .....................................................244
Powering On an AC-Powered T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
PoweringOfftheT640Router.......................................248
Chapter 23 Configuring the Junos OS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Preparing to Configure the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Initially Configuring the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
EnteringConfigurationMode.....................................252
Configuring User Accounts and Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . 252
ConfiguringSystemAttributes....................................253
CommittingtheConfiguration....................................254
Configuring DC Power on a T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Configuring DC Power on a T640 Router (Five 60-A Cables on a Six-Input
DCPowerSupply)..........................................255
Configuring DC Power on a T640 (Four 60-A Cables on a Six-Input DC
PowerSupply).............................................256
Part 4 Installing and Replacing Components
Chapter 24 Overview of Installing and Replacing Components . . . . . . . . . . . . . . . . . . . 261
T640Field-ReplaceableUnits........................................261
Tools and Parts Required to Replace the T640 Hardware Components . . . . . . 262
Chapter 25 Replacing Chassis Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
ReplacingaT640CraftInterface.....................................265
RemovingaT640CraftInterface.................................265
InstallingaT640CraftInterface..................................266
ReplacingtheT640CIP.............................................267
RemovingaT640CIP...........................................267
InstallingaT640CIP...........................................268
Replacing the T640 Alarm Relay Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Replacing the T640 Console or Auxiliary Cable . . . . . . . . . . . . . . . . . . . . . . . . . . 273
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T640 Core Router Hardware Guide

Replacing the T640 Management Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . 275
ReplacingaT640SCG..............................................277
RemovingaT640SCG..........................................277
InstallingaT640SCG...........................................278
Chapter 26 Replacing Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
ReplacingaT640AirFilter...........................................281
RemovingaFrontT640AirFilter..................................281
InstallingaFrontT640AirFilter...................................283
RemovingaRearT640AirFilter..................................283
InstallingaRearT640AirFilter...................................285
Replacing the T640 Standard Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . 286
Removing the T640 Standard Lower Front Fan Tray . . . . . . . . . . . . . . . . . . 287
Installing the T640 Standard Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . 287
Replacing the T640 Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . 288
Removing the T640 Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . 288
Installing the T640 Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . 289
Replacing the T640 Standard Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Removing the T640 Standard Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . 290
Installing the T640 Standard Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . 291
Upgrading to the T640 Quiet Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Upgrading the Standard Lower Front Fan Tray to a Quiet Lower Front Fan
Tray......................................................293
Removing the Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . 294
RemovingtheCraftInterface.....................................295
Installing the Air Deflector and Craft Interface . . . . . . . . . . . . . . . . . . . . . . . 296
Installing the Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Upgrading the Standard Rear Fan Tray to a Quiet Rear Fan Tray . . . . . . . . . 297
Replacing the T640 Quiet Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . 299
Removing the T640 Quiet Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . . . 300
Installing the T640 Quiet Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . 301
Replacing the T640 Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . 302
Removing the T640 Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . 302
Installing the T640 Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . 303
Replacing the T640 Quiet Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Removing the T640 Quiet Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Installing the T640 Quiet Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Chapter 27 Replacing Host Subsystem Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Replacing the T640 Host Subsystem Components . . . . . . . . . . . . . . . . . . . . . . . 307
Taking the T640 Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
ReplacingaT640LCC-CB...........................................310
RemovingaT640LCC-CB.......................................310
InstallingaT640LCC-CB........................................312
Replacing a T640 Standard Control Board or T-CB . . . . . . . . . . . . . . . . . . . . . . . 313
Removing a T640 Standard Control Board or T-CB . . . . . . . . . . . . . . . . . . . 314
Installing a T640 Standard Control Board or T-CB . . . . . . . . . . . . . . . . . . . . 315
ReplacingaT640RoutingEngine.....................................317
RemovingaT640RoutingEngine..................................317
InstallingaT640RoutingEngine..................................318
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Replacing a CompactFlash Card in a T640 RE-C1800 Routing Engine . . . . . . . 320
Preparing to Replace a CompactFlash Card in a T640 RE-C180 Routing
Engine ....................................................321
Removing a CompactFlash Card in a T640 RE-C1800 Routing Engine . . . . 321
Installing a CompactFlash Card in a T640 RE-C1800 Routing Engine . . . . . 322
Copying the Junos OS to the CompactFlash Card in a T640 RE-C1800
RoutingEngine.............................................323
Replacing a DIMM Module in a T640 Routing Engine . . . . . . . . . . . . . . . . . . . . . . 324
RemovingaT640DIMMModule..................................324
InstallingaT640DIMMModule...................................324
Replacing a PC Card in a T640 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 325
RemovingaT640PCCard.......................................325
InstallingaT640PCCard.......................................326
Replacing a Solid-State Disk in a T640 RE-C1800 Routing Engine . . . . . . . . . . . 327
Preparing to Replace a Solid-State Disk in a T640 RE-C1800 Routing
Engine ...................................................328
Removing a Solid-State Disk in a T640 RE-C1800 Routing Engine . . . . . . . 328
Installing a Solid-State Disk in a T640 RE-C1800 Routing Engine . . . . . . . . 329
Copying the Junos OS to the Solid-State Disk in a T640 RE-C1800 Routing
Engine ...................................................330
Chapter 28 Replacing Line Card Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
ReplacingaT640FPC..............................................333
RemovingaT640FPC..........................................333
InstallingaT640FPC...........................................336
ReplacingaT640PIC..............................................340
RemovingaT640PIC...........................................341
InstallingaT640PIC...........................................343
ReplacingT640PICCables.........................................346
RemovingaT640PICCable.....................................346
InstallingaT640PICCable......................................347
Chapter 29 Replacing Power System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Replacing a T640 Two-Input 160-A DC Power Supply . . . . . . . . . . . . . . . . . . . . 349
Removing a T640 Two-Input 160-A DC Power Supply . . . . . . . . . . . . . . . . 349
Installing a T640 Two-Input DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . 352
Replacing a T640 Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . 356
Removing a T640 Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . 357
Setting the Input Mode Switch on a Three-Input 240-A DC Power Supply
foraT640Router..........................................360
Installing a T640 Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . 361
Replacing the T640 Cable Restraint on a Three-Input 240-A DC Power
Supply....................................................361
Removing the T640 Standard Cable Restraint from a Three-Input 240-A
DCPowerSupply.......................................362
Installing the T640 Optional Cable Restraint on a Three-Input 240-A
DCPowerSupply.......................................362
Connecting DC Power to a Three-Input 240-A DC Power Supply in a T640
Router....................................................363
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T640 Core Router Hardware Guide

Powering On a T640 Replacement Three-Input 240-A DC Power
Supply ...................................................365
Replacing a T640 Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . 366
Removing a T640 Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . 366
Installing a T640 Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . 370
Replacing a T640 DC Power Supply Cable on a Two-Input 160-A Power Supply,
Three-Input 240-A DC Power Supply, or a Four-Input 240-A DC Power
Supply .......................................................373
Removing a T640 DC Power Supply Cable from a Two-Input 160-A Power
Supply, Three-Input 240-A DC Power Supply, or a Four-Input 240-A
DCPowerSupply...........................................373
Installing a T640 DC Power Supply Cable on a Two-Input 160-A Power
Supply, Three-Input 240-A DC Power Supply, or a Four-Input 240-A
DCPowerSupply...........................................376
Replacing a T640 Six-Input DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
Removing a T640 Six-Input DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . 381
Installing a T640 Six-Input DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . 383
Replacing a T640 DC Power Supply Cable on a Six-Input DC Power Supply . . . 386
Removing a T640 DC Power Supply Cable from a Six-Input DC Power
Supply ...................................................386
Installing a T640 DC Power Supply Cable on a Six-Input DC Power
Supply ...................................................387
Replacing a T640 Six-Input DC Power Supply Front Air Filter . . . . . . . . . . . . . . . 389
Removing a T640 Six-Input DC Power Supply Front Air Filter . . . . . . . . . . . 389
Installing a T640 Six-Input DC Power Supply Front Air Filter . . . . . . . . . . . . 389
Replacing a T640 Six-Input DC Power Supply Side Air Filter . . . . . . . . . . . . . . . 389
Removing a T640 Six-Input DC Power Supply Side Air Filter . . . . . . . . . . . . 390
Installing a T640 Six-Input DC Power Supply Side Air Filter . . . . . . . . . . . . 390
Replacing a Front Air Filter Element on a T640 AC or DC Power Supply . . . . . . . 391
Removing a Front Air Filter Element on a T640 AC or DC Power Supply . . . 391
Installing a Front Air Filter Element on a T640 AC or DC Power Supply . . . . 392
Replacing a Side Air Filter on a T640 AC Power Supply . . . . . . . . . . . . . . . . . . . . 393
Removing a Side Air Filter on a T640 AC Power Supply . . . . . . . . . . . . . . . . 393
Installing a Side Air Filter on a T640 AC Power Supply . . . . . . . . . . . . . . . . . 394
Replacing a T640 Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . 396
Removing a T640 Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . 396
Installing a T640 Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . 400
Replacing a T640 Three-Phase Delta AC Power Supply Cord . . . . . . . . . . . . . . 404
Removing a T640 Three-Phase Delta AC Power Supply Cord . . . . . . . . . . . 404
Installing a T640 Three-Phase Delta AC Power Supply Cord . . . . . . . . . . . . 407
Replacing a T640 Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . . . . . 410
Removing a T640 Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . 410
Installing a T640 Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . . 412
Replacing a T640 Three-Phase Wye AC Power Supply Cord . . . . . . . . . . . . . . . . 416
Removing a T640 Three-Phase Wye AC Power Supply Cord . . . . . . . . . . . . 416
Installing a T640 Three-Phase Wye AC Power Supply Cord . . . . . . . . . . . . . 418
xiCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Chapter 30 Replacing Switch Fabric Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
ReplacingaT640SFP..............................................421
RemovingaT640SFP..........................................422
InstallingaT640SFP...........................................423
ReplacingaT640SIB..............................................424
Removing a T640 Standard SIB or Standard SIB Version B . . . . . . . . . . . . . 425
Installing a T640 Standard SIB or Standard SIB Version B . . . . . . . . . . . . . 426
Upgrading to a T640 Standard SIB Version B . . . . . . . . . . . . . . . . . . . . . . . . 427
Preparing to Upgrade to a T640 Standard SIB Version B . . . . . . . . . . . 427
Replacing T640 Standard SIBs with Standard SIB Version B . . . . . . . . 428
RemovingaT640-SIB..........................................429
InstallingaT640-SIB...........................................430
Upgrading to a T640 Standard SIB Version B . . . . . . . . . . . . . . . . . . . . . . . . . . . 432
Preparing to Upgrade to a T640 Standard SIB Version B . . . . . . . . . . . . . . . 433
Replacing T640 Standard SIBs with Standard SIB Version B . . . . . . . . . . . 433
ReplacingaT640XENPAKModule...................................434
RemovingaT640XENPAKModule................................434
InstallingaT640XENPAKModule................................436
Part 5 Maintaining the Chassis and Components
Chapter 31 Routine Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
Routine Maintenance Procedures for the T640 Router . . . . . . . . . . . . . . . . . . . . 441
Chapter32 MaintainingComponents.........................................443
Tools and Parts Required to Maintain the T640 Hardware Components . . . . . . 443
MaintainingtheT640SCGs.........................................443
MaintainingtheT640AirFilters......................................444
MaintainingtheT640FanTrays......................................445
Maintaining the T640 Host Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447
Maintaining the T640 Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448
Maintaining the T640 Control Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449
MaintainingT640FPCs.............................................450
HoldingandStoringT640FPCs......................................451
HoldingT640FPCs.............................................451
StoringT640FPCs.............................................454
Maintaining T640 PICs and PIC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454
Maintaining the T640 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456
MaintainingtheT640SIBs..........................................459
Copyright © 2017, Juniper Networks, Inc.xii
T640 Core Router Hardware Guide

Part 6 Troubleshooting Hardware
Chapter 33 Troubleshooting Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
Overview of Troubleshooting Resources for the T640 Router . . . . . . . . . . . . . . . 463
T640LEDOverview...............................................464
CraftInterfaceLEDs............................................464
ComponentLEDs..............................................465
T640AlarmMessagesOverview.....................................466
ChassisAlarmMessages........................................466
InterfaceAlarmMessages.......................................466
Troubleshooting the T640 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467
Troubleshooting the T640 SONET Clock Generators . . . . . . . . . . . . . . . . . . . . . 468
Troubleshooting the T640 Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469
Troubleshooting the T640 Host Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472
Troubleshooting the T640 Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 473
TroubleshootingtheT640FPCs......................................474
TroubleshootingtheT640PICs......................................475
Troubleshooting the T640 Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476
TroubleshootingtheT640SIBs......................................479
Part 7 Contacting Customer Support and Returning the Chassis or
Components
Chapter 34 Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
ContactingCustomerSupport.......................................483
Chapter 35 Locating Component Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485
Locating T640 Component Serial Numbers Using the CLI . . . . . . . . . . . . . . . . . 485
T640 Component Serial Number Label Locations . . . . . . . . . . . . . . . . . . . . . . . 486
Control Board Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486
CIPSerialNumberLabel........................................487
Craft Interface Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
FPCSerialNumberLabel........................................488
PICSerialNumberLabel........................................488
PowerSupplySerialNumberLabel................................489
Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490
SCGSerialNumberLabel........................................491
SIBSerialNumberLabel.........................................491
Chapter 36 Packing and Returning Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493
Returning a Hardware Component to Juniper Networks, Inc. . . . . . . . . . . . . . . . 493
Tools and Parts Required to Remove Components from a T640 Router . . . . . . 494
Packing the T640 Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494
Packing T640 Router Components for Shipment . . . . . . . . . . . . . . . . . . . . . . . . 496
Part 8 Safety and Compliance Information
Chapter 37 General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 501
DefinitionofSafetyWarningLevels....................................501
General Safety Guidelines for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . 503
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General Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . 504
QualifiedPersonnelWarning.....................................504
Restricted-AccessAreaWarning..................................504
T640 Preventing Electrostatic Discharge Damage . . . . . . . . . . . . . . . . . . . . . . . 506
Chapter38 FireSafetyRequirements.........................................509
Fire Safety Requirements for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . 509
GeneralFireSafetyRequirements.................................509
FireSuppression...............................................509
FireSuppressionEquipment.....................................509
Chapter 39 Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 511
T640InstallationSafetyGuidelines....................................511
General Installation Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511
T640ChassisLiftingGuidelines...................................511
Installation Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . 512
IntrabuildingPortsWarning.......................................512
Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512
Rack-Mounting Requirements and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 513
RampWarning.................................................516
Chapter 40 Laser and LED Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . 519
T640 General Laser Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 519
Laser Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . . . . . . . . . . . 519
Class1LaserProductWarning....................................520
Class1LEDProductWarning.....................................520
LaserBeamWarning............................................521
Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . . 521
Chapter 41 Maintenance and Operational Safety Guidelines and Warnings . . . . . . . . 523
Maintenance and Operational Safety Warnings for Juniper Networks Devices . . 523
BatteryHandlingWarning........................................523
JewelryRemovalWarning.......................................524
LightningActivityWarning.......................................525
OperatingTemperatureWarning..................................526
ProductDisposalWarning.......................................527
Chapter 42 Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . 529
InCaseofanElectricalAccident......................................529
T640 General Electrical Safety Guidelines and Electrical Codes . . . . . . . . . . . . 529
General Electrical Safety Warnings for Juniper Networks Devices . . . . . . . . . . . . 530
GroundedEquipmentWarning...................................530
Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
MidplaneEnergyHazardWarning.................................532
Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . . . . 532
PowerDisconnectionWarning....................................533
DC Power Electrical Safety Warnings for Juniper Networks Devices . . . . . . . . . . 534
DC Power Copper Conductors Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534
DCPowerDisconnectionWarning.................................534
DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536
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T640 Core Router Hardware Guide

T640 AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537
Site Electrical Wiring Guidelines for Juniper Networks Devices . . . . . . . . . . . . . . 538
Distance Limitations for Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538
RadioFrequencyInterference....................................538
Electromagnetic Compatibility ...................................538
Chapter 43 Agency Approvals and Compliance Statements . . . . . . . . . . . . . . . . . . . . . . 541
T640AgencyApprovals.............................................541
Compliance Statements for EMC Requirements for Juniper Networks Devices
(Canada).....................................................542
T640 Compliance Statements for EMC Requirements (European
Community) ..................................................543
Compliance Statements for EMC Requirements for Juniper Networks Devices
(Israel).......................................................543
Compliance Statements for EMC Requirements for Juniper Networks Devices
(Japan) ......................................................543
Compliance Statements for EMC Requirements for Juniper Networks Devices
(UnitedStates)................................................544
Compliance Statements for Environmental Requirements for Juniper Networks
Devices ......................................................544
T640 Compliance Statements for NEBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544
T640 Compliance Statements for Acoustic Noise . . . . . . . . . . . . . . . . . . . . . . . . 545
xvCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Copyright © 2017, Juniper Networks, Inc.xvi
T640 Core Router Hardware Guide

List of Figures
Part 1 Overview
Chapter 1 System Overview and Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure1:RouterArchitecture...........................................5
Figure 2: Control Packet Handling for Routing and Forwarding Table Updates . . . . 6
Figure 3: Data Flow Through the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure4:FrontViewofT640Chassis...................................16
Figure5:RearViewofT640Chassis....................................17
Figure6:T640Midplane.............................................18
Figure7:CableManagementSystem....................................19
Figure8:CIP.......................................................20
Figure 9: Front Panel of the T640 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure10:T640LCDinIdleMode......................................25
Figure11:T640LCDinAlarmMode.....................................26
Figure12:SCGwithDB-9Ports........................................27
Figure13:SCGwithRJ-48ports........................................28
Figure14:SCGwithRJ-48ports.......................................29
Chapter 4 Cooling System Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 15: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure16:QuietUpperFrontFanTray...................................33
Figure17:QuietLowerFrontFanTray...................................33
Chapter 5 Host Subsystem Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . 35
Figure18:RoutingEngine600.........................................38
Figure 19: Routing Engine 1600 (RE-1600) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 20: Routing Engine C1800 (RE-C1800) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure21:RE-C1800LEDs............................................43
Figure 22: Routing Engine 2000 (RE-2000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure23:LCC-CB...................................................61
Figure24:LCC-CBLEDs..............................................62
Figure 25: T640 Standard Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure26:T-CB....................................................65
Chapter 6 Line Card Components and Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 27: FPC Installed in a T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure28:FPCEdges................................................69
Figure 29: Enhanced Scaling FPC1 Supported by the T640 Router . . . . . . . . . . . . 71
Figure 30: Standard FPC2 and FPC3 Supported by the T640 Router . . . . . . . . . . 72
Figure 31: Enhanced II FPC1, FPC2, and FPC3 Supported by the T640 Router . . . . 73
xviiCopyright © 2017, Juniper Networks, Inc.

Figure 32: Enhanced Scaling FPC2 Supported by the T640 Router . . . . . . . . . . . . 74
Figure 33: Enhanced Scaling FPC3 Supported by the T640 Router . . . . . . . . . . . . 75
Figure 34: Enhanced Scaling FPC4 Supported by the T640 Router . . . . . . . . . . . 76
Figure 35: T640 Enhanced Scaling FPC4-1P Supported by the T640 Router . . . . 77
Chapter 7 Power System Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 36: Two-Input 160-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Figure 37: Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Figure 38: Three-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . 101
Figure 39: Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Figure 40: Four-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . 103
Figure 41: Six-Input DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Figure 42: Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Figure 43: Three-Phase Delta AC Power Supply Connections . . . . . . . . . . . . . . . 107
Figure 44: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Figure 45: Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Figure 46: Three-Phase Wye AC Power Supply Connections . . . . . . . . . . . . . . . . 109
Figure 47: Wye Three-Phase AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Figure 48: Delta AC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Chapter 8 Switch Fabric Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 111
Figure 49: Standard SIB or Standard SIB Version B . . . . . . . . . . . . . . . . . . . . . . . . 112
Figure50:T640-SIB................................................112
Part 2 Site Planning, Preparation, and Specifications
Chapter9 Preparation Overview .............................................117
Figure 51: T640 DC Power and Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . . 119
Figure52:TypicalOpen-FrameRack...................................121
Figure 53: T640 Chassis Dimensions and Clearance Requirements . . . . . . . . . . 122
Chapter 10 DC Power Requirements and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 125
Figure 54: Typical DC Source Cabling from PEM0 to Feed A . . . . . . . . . . . . . . . . . 131
Figure 55: Typical DC Source Cabling from PEM1 to Feed B . . . . . . . . . . . . . . . . . 131
Figure56:T640DCPowerCableLug..................................132
Chapter 11 AC Power Requirements and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 135
Figure 57: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Figure 58: Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Part 3 Initial Installation and Configuration
Chapter15 UnpackingtheT640..............................................153
Figure 59: Contents of the Shipping Crate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Chapter 16 Installing the Rack Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Figure 60: Positioning the Spacer Bar on the Rack . . . . . . . . . . . . . . . . . . . . . . . . 161
Figure 61: Installing the Mounting Hardware for a Four-Post Rack or Cabinet . . . 162
Figure 62: Installing the Mounting Hardware for an Open-Frame Rack . . . . . . . . 164
Chapter 18 Installing the T640 Router With a Mechanical Lift . . . . . . . . . . . . . . . . . . . . 169
Figure 63: Removing a Power Supply Before Installing the Router . . . . . . . . . . . . 171
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Figure 64: Removing a Power Supply Before Installing the Installation
Handle .......................................................172
Figure 65: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Figure 66: Loading the Router onto the Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Figure 67: Installing the Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Figure 68: Reinstalling a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Chapter 19 Installing the T640 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . 179
Figure 69: Removing a Power Supply Before Installing the Router . . . . . . . . . . . . 182
Figure70:RemovingaSIB...........................................183
Figure71:RemovingaT-CB..........................................184
Figure72:RemovinganLCC-CB.......................................184
Figure73:RemovinganSCG.........................................185
Figure 74: Removing the Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Figure 75: Removing the Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . 188
Figure 76: Removing the Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . 188
Figure77:RemovingaT640FPC......................................190
Figure 78: Removing a Power Supply Before Installing the Installation
Handle .......................................................192
Figure 79: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Figure 80: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Figure 81: Installing the Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Figure 82: Reinstalling the Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Figure83:ReinstallinganSCG........................................198
Figure84:ReinstallingaT-CB........................................198
Figure85:ReinstallinganLCC-CB.....................................199
Figure86:ReinstallingaSIB.........................................200
Figure 87: Reinstalling a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Figure88:ReinstallinganFPC........................................202
Figure 89: Reinstalling the Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . 204
Figure 90: ReInstalling the Quiet Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . . 204
Figure 91: Reinstalling the Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . 204
Chapter 20 Connecting the T640 to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Figure92:GroundingLug............................................207
Chapter 21 Connecting the T640 to External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Figure 93: Console and Auxiliary Serial Port Connector . . . . . . . . . . . . . . . . . . . . . 211
Figure 94: Console and Auxiliary Ports on the CIP . . . . . . . . . . . . . . . . . . . . . . . . . 211
Figure 95: Routing Engine Ethernet Cable Connector . . . . . . . . . . . . . . . . . . . . . . 212
Figure96:ETHERNETPortontheCIP..................................213
Figure97:AttachingaCabletoaPIC...................................217
Chapter22 ProvidingPowertotheT640......................................219
Figure 98: Connecting DC Power to a Two-Input 160-A DC Power Supply . . . . . 222
Figure 99: Connecting DC Power to a Three-Input 240-A DC Power Supply in
2-INPUT Mode ................................................224
Figure 100: Connecting Power to the Four-Input 240-A DC Power Supply . . . . . 226
Figure 101: Connecting DC Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
xixCopyright © 2017, Juniper Networks, Inc.
List of Figures

Figure 102: Connecting Negative (–) DC Power Cables to INPUT 0, INPUT 1,
INPUT3,andINPUT4..........................................229
Figure 103: Connecting Negative (–) DC Power Cables to INPUT 2 and
INPUT5......................................................230
Figure 104: Connecting Positive (+) DC Power Cables to RTN 2, RTN 5, RTN 0,
RTN1,RTN3,andRTN4.........................................231
Figure 105: Connecting DC Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Figure 106: Connecting Negative (–) DC Power Cables to INPUT 0, INPUT 1,
INPUT3,andINPUT4..........................................234
Figure 107: Connecting Negative (–) DC Power Cable to INPUT 2 . . . . . . . . . . . . 234
Figure 108: Connecting Positive (+) DC Power Cable to RTN 2, RTN 0, RTN 1,
RTN3,RTN4..................................................235
Figure 109: Connecting DC Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Figure 110: Connecting Negative (–) DC Power Cables to INPUT 0, INPUT 1,
INPUT3,andINPUT4..........................................238
Figure 111: Connecting Positive (+) DC Power Cables to RTN 0, RTN 1, RTN 3, and
RTN 4 .......................................................239
Figure 112: Connecting Power to a Three-Phase Delta AC Power Supply . . . . . . 243
Figure 113: Connecting Power to the Three-Phase Wye AC Power Supply . . . . . 245
Figure 114: Fastening the AC Power Cord to the Power Supply . . . . . . . . . . . . . . 246
Part 4 Installing and Replacing Components
Chapter 25 Replacing Chassis Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Figure 115: Removing a Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Figure 116: Installing a Replacement Craft Interface . . . . . . . . . . . . . . . . . . . . . . . 267
Figure117:RemovingaCIP...........................................268
Figure118:InstallingaCIP...........................................270
Figure 119: Routing Engine Alarm Relay Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Figure120:RoutingEngineConsole....................................274
Figure 121: Ethernet Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Figure122:RemovinganSCG.........................................278
Figure123:InstallinganSCG.........................................279
Chapter 26 Replacing Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Figure 124: Removing the Front Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Figure 125: Replacing the Front Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Figure 126: Installing the Front Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Figure 127: Removing the Rear Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Figure 128: Removing the Rear Air Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . 285
Figure 129: Installing the Rear Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Figure 130: Removing a Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . 289
Figure 131: Installing an Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Figure 132: Removing the Standard Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . 291
Figure 133: Installing a Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Figure 134: Installing a Quiet Lower Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . 294
Figure 135: Removing a Standard Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . 295
Figure 136: Removing the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Figure 137: Installing the Air Deflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Figure 138: Installing the Quiet Upper Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . 297
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T640 Core Router Hardware Guide