26.4 Removing an XSCF BB Control Cable 407
26.5 Installing an XSCF BB Control Cable 409
26.6 Restoring the System 410
26.6.1 Active/Hot maintenance 410
26.6.2 Active/Cold maintenance 410
26.6.3 Inactive/Hot maintenance 411
26.6.4 Inactive/Cold maintenance 411
26.6.5 System-stopped maintenance 411
Chapter 27 Maintaining the XSCF DUAL Control Cables 413
27.1 Configuration of the XSCF DUAL Control Ports 413
27.2 Before Maintaining an XSCF DUAL Control Cable 415
27.2.1 Types of maintenance 415
27.2.2 Maintenance flow 415
27.3 Enabling the Removal of an XSCF DUAL Control Cable 416
27.3.1 Active/Hot maintenance 416
27.3.2 Active/Cold maintenance 417
27.3.3 Inactive/Hot maintenance 417
27.3.4 Inactive/Cold maintenance 418
27.3.5 System-stopped maintenance 418
27.4 Removing an XSCF DUAL Control Cable 419
27.5 Installing an XSCF DUAL Control Cable 421
27.6 Restoring the System 421
27.6.1 Active/Hot maintenance 421
27.6.2 Active/Cold maintenance 422
27.6.3 Inactive/Hot maintenance 422
27.6.4 Inactive/Cold maintenance 423
27.6.5 System-stopped maintenance 423
Chapter 28 Maintaining the Cable Kit of the Crossbar Box 425
28.1 Configuration of the Cable Kit 425
28.1.1 Cables for the connection between the crossbar backplane unit
and terminal board 425
Contents xvii