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• DC Power Electrical Safety Warnings for Juniper Networks Devices on page 248

• MX104 DC Power Specifications on page 99

• MX104 DC Power Cable and Lug Specifications on page 100

183Copyright © 2017, Juniper Networks, Inc.

Chapter 23: Replacing Power System Components

Table of Contents

Default Chapter3
- Table of Contents3
- About the Documentation19
- Chassis Components and Descriptions25
- Cooling System Components and Descriptions25
  - Line Card Components and Descriptions25
  - Power System Components and Descriptions25
- Overview25
- System Overview25
Chapter 1 System Overview27
- System Overview27
  - MX104 3D Universal Edge Router Overview27
- Figure 1: Front Panel of the MX104 Router28
- Figure 2: Rear View of the MX104 Router28
- MX104 Chassis Overview28
- Figure 3: Front View of the MX104 Router29
- System Overview29
- MX104 Hardware and CLI Terminology Mapping30
- Table 3: MX104 Routers Hardware Components and CLI Terminology30
- MX104 Component Redundancy31
Chapter 2 Chassis Components and Descriptions33
- MX104 Alarm Contact Port Overview33
- Figure 4: Sample Output Alarm-Reporting Device34
- Table 4: Alarm Relay Contact Functions34
- MX104 Leds Overview35
- MX104 Leds Overview37
- MX104 Leds Overview39
- MX104 Clocking and Timing Ports Overview41
Chapter 3 Cooling System Components and Descriptions43
- MX104 Cooling System and Airflow Overview43
- Figure 9: MX104 Fan Tray and Air Filter43
- Figure 10: Cooling System and Airflow in an MX104 Router44
Chapter 4 Host Subsystem Components and Descriptions45
- MX104 Routing Engine Overview45
- MX104 Routing Engine Overview48
- MX104 Routing Engine Overview51
- Routing Engine Specifications54
- Table 19: Management Leds54
- Table 20: Routing Engine Specifications55
- Table 21: End-Of-Life Routing Engine Specifications56
- Supported Routing Engines by Router57
Chapter 5 Line Card Components and Descriptions71
- MX104 Modular Interface Card (MIC) Overview71
- Mics Supported by MX Series Routers73
- Table 44: SFP+ Port Leds73
- Table 45: Mics Supported by MX240, MX480, MX960, MX2008, MX2010, and MX2020 Routers73
- Line Card Components and Descriptions75
Chapter 6 Power System Components and Descriptions85
- MX104 Power Overview85
- MX104 Power Overview87
- Power System Components and Descriptions87
- Preparation Overview91
- Site Planning, Preparation, and Specifications91
Chapter 7 Preparation Overview93
- MX104 Router Environmental Specifications94
- Table 52: MX104 Environmental Specifications94
- Preparing the Site for the MX104 Router Overview95
- Rack Requirements for MX104 Routers96
- Table 53: Rack Requirements and Specifications for the Router96
- Cabinet Requirements for MX104 Routers97
- Table 54: Cabinet Requirements and Specifications for the MX104 Router98
- Clearance Requirements for Airflow and Hardware Maintenance on MX10499
  - Figure 19: MX104 Chassis Dimensions and Clearance Requirements99
  - Routers100
- MX104 Router Grounding Specifications100
- Preparation Overview93
  - MX104 Router Physical Specifications93
  - Table 51: Physical Specifications of the MX104 Router Chassis93
Chapter 8 Transceiver and Cable Specifications103
- Calculating Power Budget and Power Margin for Fiber-Optic Cables103
- Understanding Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion105
  - Signal Loss in Multimode and Single-Mode Fiber-Optic Cable105
  - Attenuation and Dispersion in Fiber-Optic Cable106
Chapter 9 Port Cable and Pinout Specifications107
- MX104 Clocking and Timing Ports Overview107
- MX104 Routing Engine Ethernet Port Specifications108
- MX104 Routing Engine Auxiliary and Console Ports Specifications109
  - Cable Specifications109
  - Pinouts109
- Port Cable and Pinout Specifications109
Chapter 10 Power Specifications117
- Power Specifications117
  - MX104 Power Consumption117
  - Table 67: Power Consumed by MX104 Routers117
- AC Power Specifications119
  - MX104 AC Power Specifications119
  - Table 68: AC Power Electrical Specifications119
Chapter 11 AC Power Specifications119
- MX104 AC Power Cord Specifications120
- Table 69: AC Power Cord Specifications120
Chapter 12 DC Power Specifications123
- MX104 DC Power Cable and Lug Specifications124
- DC Power Specifications123
  - MX104 DC Power Specifications123
  - Table 70: DC Power Electrical Specifications123
- DC Power Specifications125
Chapter 13 Unpacking the MX104 Router127
Chapter 14 Installing the MX104 Router127
- Unpacking the MX104 Router129
- Installing the MX104 Router133
Chapter 15 Connecting the MX104 Router to Power137
- Connecting the MX104 Router to Earth Ground137
- Connecting AC Power Cords to the MX104 Router139
- Figure 26: Grounding Points on the MX104 Router139
- Figure 27: Connecting AC Power to the Router140
- Connecting DC Power Cables to the MX104 Router141
- Figure 28: Connecting the Ground Cable to the MX104 DC Power Supply142
- Figure 29: Connecting DC Power to the Router144
Chapter 16 Connecting the MX104 Router to the Network145
- Connecting the MX104 Router to Management Devices145
- Connecting the MX104 Router to External Clocking and Timing Devices147
- Connecting the MX104 Router to an External Alarm-Reporting Device148
- Connecting Interface Cables to MX104 Routers149
- Figure 34: Attaching a Cable to a MIC150
Chapter 17 Initially Configuring the MX104 Router153
Chapter 22 Replacing Line Card Components157
Chapter 23 Replacing Power System Components157
- Overview of Installing and Replacing Components157
- Overview of Installing and Replacing Components159
  - MX104 Field-Replaceable Units (Frus)159
  - Table 73: Field-Replaceable Units159
- Replacing Chassis Components161
- Replacing Cooling System Component167
- Replacing Host Subsystem Components175
  - Installing an MX104 Routing Engine175
  - Replacing an MX104 Routing Engine176
- Replacing Line Card Components183
- Replacing Power System Components193
Chapter 18 Installing and Replacing Components157
Chapter 21 Replacing Host Subsystem Components157
Chapter 20 Replacing Cooling System Component157
Chapter 19 Replacing Chassis Components157
Chapter 24 Routine Maintenance Procedures211
- Routine Maintenance Procedures for the MX104 Router211
- Connecting the MX104 Router to Power127
- Connecting the MX104 Router to the Network127
- Initial Installation and Configuration127
Chapter 25 Maintaining Components213
- Maintaining the MX104 Air Filter214
- Maintaining Cables that Connect to MX104 Network Ports215
- Maintaining the MX104 Mics and Network Ports216
- Maintaining the MX104 Routing Engines216
- Maintaining Components213
  - Maintaining the MX104 Cooling System213
- Part 6 Troubleshooting Hardware219
- Troubleshooting Hardware219
  - Troubleshooting Components219
Chapter 26 Troubleshooting Components221
- Alarm Devices and Messages222
- Understanding Alarm Types and Severity Classes on MX104 Routers222
  - Table 75: Alarm Terms222
  - Alarm Severity Classes223
- Verifying Active Alarms on MX104 Routers223
- Monitoring System Log Messages on MX104 Routers224
- Table 76: Alarm Output Fields224
- Troubleshooting Components221
  - Troubleshooting Resources for MX104 Routers221
    - Command-Line Interface221
    - Front Panel Leds221
- Contacting Customer Support and Returning the Chassis or Components225
- Locating Component Serial Numbers225
Chapter 27 Contactingcustomersupport227
- Contacting Customer Support227
Chapter 28 Locating Component Serial Numbers229
- Displaying MX104 Components and Serial Numbers229
- MX104 Chassis Serial Number Label230
- MX104 Fan Tray Serial Number Label230
- Figure 64: Serial Number ID Label230
- Figure 65: MX104 Chassis Serial Number Label230
- MX104 MIC Serial Number Label231
- Figure 66: MX104 Fan Tray Serial Number Label231
- Figure 67: MX104 MIC Serial Number Label231
- MX104 Power Supply Serial Number Label232
- MX104 Routing Engine Serial Number Label232
- Figure 68: MX104 Power Supply Serial Number Label232
- Figure 69: MX104 Routing Engine Serial Number Label232
Chapter 29 Packing and Returning Components233
- Guidelines for Packing Hardware Components for Shipment234
- Packing the MX104 Router for Shipment234
- Packing and Returning Components233
  - Returning a Hardware Component to Juniper Networks, Inc233
Chapter 30 General Safety Guidelines and Warnings237
- Safety and Compliance Information237
- General Safety Guidelines and Warnings239
Chapter 31 Fire Safety Requirements247
- Fire Safety Requirements for Juniper Networks Devices247
Chapter 32 Installation Safety Guidelines and Warnings249
- Installation Safety Warnings for Juniper Networks Devices249
Chapter 33 Laser and LED Safety Guidelines and Warnings255
- General Laser Safety Guidelines for Juniper Networks Devices255
- Laser Safety Warnings for Juniper Networks Devices255
Chapter 34 Maintenance and Operational Safety Guidelines and Warnings259
- Maintenance and Operational Safety Warnings for MX104 Routers259
Chapter 35 Electrical Safety Guidelines and Warnings265
- In Case of an Electrical Accident265
- General Electrical Safety Warnings for Juniper Networks Devices265
- MX104 AC Power Electrical Safety Guidelines and Warnings270
- MX104 DC Power Electrical Safety Guidelines271
- DC Power Electrical Safety Warnings for Juniper Networks Devices272
- Site Electrical Wiring Guidelines for MX104 Routers275
Chapter 36 Agency Approvals and Compliance Statements277
- Agency Approvals for MX104 Routers277
- Compliance Statements for NEBS for MX104 Routers278
- Compliance Statements for EMC Requirements for MX104 Routers279
- Compliance Statements for Environmental Requirements for Juniper Networks280
  - Devices280
- Compliance Statements for Acoustic Noise for MX104 Routers280

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