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Juniper M120 User Manual

Juniper M120
382 pages
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Reinstalling the Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Reinstalling FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Reinstalling a CFPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Reinstalling the Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Reinstalling the Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . 149
Chapter 19 Connecting the M120 to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Connecting the Grounding Cable to the M120 Router . . . . . . . . . . . . . . . . . . . . . . 151
Chapter 20 Connecting the M120 to External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Tools and Parts Required to Connect the M120 Router . . . . . . . . . . . . . . . . . . . . . 153
Connecting the M120 Router to Management and Alarm Devices . . . . . . . . . . . . 153
Connecting the M120 Router to a Management Console or Auxiliary
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Connecting the M120 Router to a Network for Out-of-Band
Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Connecting the M120 Router to an External Alarm-Reporting Device . . . . . 158
Connecting the M120 Router to a Network for Out-of-Band Management . . . . . 160
Connecting the M120 Router to an External Alarm-Reporting Device . . . . . . . . . . 161
Connecting the M120 Router to an External Clocking Device . . . . . . . . . . . . . . . . 163
Connecting PIC Cables to the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Chapter 21 Providing Power to the M120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Connecting Power to an AC-Powered M120 Router . . . . . . . . . . . . . . . . . . . . . . . 167
Connecting Power to a DC-Powered M120 Router . . . . . . . . . . . . . . . . . . . . . . . . 169
Powering On the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Powering Off the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Chapter 22 Configuring the Junos Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Initially Configuring Junos OS on the M120 Router . . . . . . . . . . . . . . . . . . . . . . . . . 173
Part 4 Installing and Replacing Components
Chapter 23 Overview of Installing and Replacing Components . . . . . . . . . . . . . . . . . . . 179
M120 Field-Replaceable Units (FRUs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Tools and Parts Required to Replace M120 Components . . . . . . . . . . . . . . . . . . . 180
Chapter 24 Replacing Chassis Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Replacing Alarm Relay Wires on the M120 Craft Interface . . . . . . . . . . . . . . . . . . 183
Replacing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Removing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Installing the M120 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Chapter 25 Replacing Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Replacing an M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Removing the M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Installing the M120 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Replacing an M120 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Removing an M120 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Installing an M120 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
viiCopyright © 2018, Juniper Networks, Inc.
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Juniper M120 Specifications

General IconGeneral
BrandJuniper
ModelM120
CategoryNetwork Router
LanguageEnglish

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