Chapter 28 Replacing Power System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Figure 95: Removing an M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Figure 96: Rear of the M120 Power Supply Showing Midplane Connector . . . . . . 241
Figure 97: Installing an M120 AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Figure 98: Disconnecting Power Cables from the M120 DC Power Supply . . . . . 246
Figure 99: Removing an M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 248
Figure 100: Installing an M120 DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 250
Figure 101: Connecting Power Cables to the M120 DC Power Supply . . . . . . . . . . 251
Chapter 29 Replacing Switch Fabric Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Figure 102: Removing an M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Figure 103: Installing an M120 FEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Part 5 Maintaining the Chassis and Components
Chapter 31 Maintaining Components and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Figure 104: Holding an M120 FPC Vertically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Figure 105: Holding an M120 FPC Horizontally . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Figure 106: Do Not Grasp the Connector Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Figure 107: Do Not Carry an FPC with Only One Hand . . . . . . . . . . . . . . . . . . . . . 274
Figure 108: Do Not Rest the FPC on an Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Part 7 Contacting Customer Support and Returning the Chassis or
Components
Chapter 34 Locating Component Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Figure 109: Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Figure 110: M120 Chassis Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Figure 111: M120 Craft Interface Serial Number Label . . . . . . . . . . . . . . . . . . . . . . 299
Figure 112: M120 Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . 300
Figure 113: M120 CB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Figure 114: M120 FPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Figure 115: M120 Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . 301
Figure 116: M120 PIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Figure 117: M120 AC Power Supply Serial Number Label . . . . . . . . . . . . . . . . . . . 303
Figure 118: M120 DC Power Supply Serial Number Label . . . . . . . . . . . . . . . . . . . 303
Figure 119: M120 FEB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Part 8 Safety and Compliance Information
Chapter 36 General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Figure 120: Placing a Component into an Electrostatic Bag . . . . . . . . . . . . . . . . . 316
Copyright © 2018, Juniper Networks, Inc.xvi
M120 Multiservice Edge Router Hardware Guide
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