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1 Crossbar cables (electrical) (CBL)
Note -
Read and understand the instructions in this chapter before starting the maintenance
work. Also see the contents of "Chapter 1 Before Starting Maintenance Work."
Table 24-1
Types of maintenance for crossbar cables (electrical)
Configuration Active/hot Active/cold Inactive/hot Inactive/cold System stopped
Without crossbar box Unsupported Unsupported Unsupported Supported Supported
Table 24-2
Maintenance flow
Task Replacement
1 Preparation 24.3
2 Removing the crossbar cables (electrical) 24.4
3 Installing the crossbar cables (electrical) 24.5
4 Restoring the system 24.6
24.2 Before Maintaining a Crossbar Cable
(Electrical)
This section describes the types and the flow of the maintenance of the crossbar
cables (electrical), as well as precautions that must be observed.
24.2.1 Types of maintenance
Table 24-1 lists the types of maintenance for the crossbar cables (electrical). For the
definition of maintenance, see "4.3 Understanding Types of Maintenance."
24.2.2 Maintenance flow
Table 24-2 lists the sequence of the maintenance procedure for the crossbar cables
(electrical).
Chapter 24 Maintaining the Crossbar Cables (Electrical) 381