Juniper T640 Hardware Guide

Figure 180: Standard Cable Restraint on a Three-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
Figure 181: Optional Cable Restraint on a Three-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Figure 182: Connecting Power Cables to the Power Supply . . . . . . . . . . . . . . . . . 365
Figure 183: Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 367
Figure 184: Disconnecting Power Cables from the Four-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Figure 185: Removing a Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . 369
Figure 186: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . 369
Figure 187: Connecting a Power Cable to a Four-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Figure 188: Installing a Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . 372
Figure 189: Disconnecting a DC Power Cable from a Two-Input 160-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Figure 190: Disconnecting a DC Power Cable from a Three-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
Figure 191: Disconnecting a DC Power Cable from a Four-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Figure 192: Connecting a DC Power Cable to a Two-Input 160-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Figure 193: Connecting a DC Power Cable to a Three-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
Figure 194: Connecting a DC Power Cable to a Four-Input 240-A DC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
Figure 195: DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Figure 196: Disconnecting Power Cables from the DC Power Supply . . . . . . . . . 382
Figure 197: Removing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Figure 198: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . 383
Figure 199: Inserting the DC Power Supply into the Chassis . . . . . . . . . . . . . . . . 384
Figure 200: Attaching the DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385
Figure 201: Disconnecting the DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . 387
Figure 202: Connecting the DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
Figure 203: Removing the Power Supply Side Air Filter . . . . . . . . . . . . . . . . . . . . 390
Figure 204: Installing the Power Supply Side Air Filter . . . . . . . . . . . . . . . . . . . . . 391
Figure 205: Removing a Front Air Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . 392
Figure 206: Installing a Front Air Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . 393
Figure 207: Removing the AC Power Supply Side Air Filter . . . . . . . . . . . . . . . . . 394
Figure 208: Installing the Side Power Supply Filter . . . . . . . . . . . . . . . . . . . . . . . 396
Figure 209: Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . 397
Figure 210: Disconnecting the Power Cord from a Three-Phase Delta AC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
Figure 211: Removing a Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . 399
Figure 212: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . 400
Figure 213: Connecting Power to a Three-Phase Delta AC Power Supply . . . . . . 402
Figure 214: Installing a Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . 404
Figure 215: Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 405
Figure 216: Disconnecting the Power Cord from a Three-Phase Delta AC Power
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
Copyright © 2017, Juniper Networks, Inc.xxii
T640 Core Router Hardware Guide

Juniper T640 Specifications

General

Brand	Juniper
Model	T640
Category	Network Router
Language	English