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14.2.2 Maintenance flow 267
14.3 Enabling the Removal of the PSU Backplane Unit 267
14.3.1 Active/Cold maintenance 268
14.3.2 Inactive/Cold maintenance 269
14.3.3 System-stopped maintenance 269
14.4 Removing the PSU Backplane Unit 270
14.4.1 Accessing the PSU backplane unit 271
14.4.2 Removing the PSU backplane unit 273
14.5 Installing the PSU Backplane Unit 274
14.5.1 Installing the PSU backplane unit 274
14.5.2 Restoring the chassis 275
14.6 Restoring the System 276
14.6.1 Active/Cold maintenance 276
14.6.2 Inactive/Cold maintenance 277
14.6.3 System-stopped maintenance 278
Chapter 15 Maintaining the Operation Panel 281
15.1 Location of the Operation Panel 281
15.2 Before Maintaining the Operation Panel 282
15.2.1 Types of maintenance 282
15.2.2 Maintenance flow 283
15.2.3 Precautions for replacement 283
15.3 Enabling the Removal of the Operation Panel 283
15.3.1 Active/Cold maintenance 284
15.3.2 Inactive/Cold maintenance 285
15.3.3 System-stopped maintenance 285
15.4 Removing the Operation Panel 286
15.4.1 Accessing the operation panel 287
15.4.2 Removing the operation panel 289
15.5 Installing the Operation Panel 290
15.5.1 Installing the operation panel 290
15.5.2 Restoring the chassis 291
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