Note- Read an d understand the instructions in this chapter before starting the maintenance
work.Also see the contents of "Chapter 1 BeforeStarting MaintenanceW ork."
Table26-1 Typesof maintenance for XSCF BB control cable
Configuration Active/hot Active/cold Inactive/hot Inactive/cold Systemstopped
Building block configuration
(withoutcrossb ar box)
Supported(*) Supported Supported Supported Supported
Building block configuration
(withcrossbar b ox)
Supported(*) Supported Supported Supported Supported
*:The XSCF must be configured as a slave before maintenance is started.If it is operating as the master XSCF, switch it to a standby
XSCF.
Table26-2 Maintenanceflow
Detailsof update process Replacement
1 Preparation 26.3
2 Removingthe XSCF BB control cables 26.4
3 Installingthe XSCF BB control cables 26.5
4 Restoringthe system 26.6
26.2 Before Maintaining an XSCF BB
Control Cable
Thissectio n describes the types and the flow of the maintenance of the XSCF BB
controlcables.

26.2.1 T ypes of maintenance

Table26-1 lists the types of maintenance for the XSCF BB control cables. For the
definitionof maintenance, see "4.3 Understanding Typesof Maintenance."

26.2.2 Maintenance flow

Table26-2 lists the sequence of the maintenance procedure for the XSCF BB control
cables.
Chapter26 Maintainingthe XSCF BB Control Cables 403