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 25-1
Types of maintenance for crossbar cables (optical)
Configuration Active/hot Active/cold Inactive/hot I n a ctive/cold System stopped
With a crossbar box Unsupported Unsupported Unsupported Supported Supported
Table 25-2
Maintenance flow
Task Replacement
1 Preparation 25.3
2 Removing the crossbar cables (optical) 25.4
3 Installing the crossbar cables (optical) 25.5
4 Restoring the system 25.6
25.2 Before Maintaining a Crossbar Cable
(Optical)
This section describes the types and the flow of the maintenance of the crossbar
cables (optical), as well as precautions that must be observed.
25.2.1 Types of maintenance
Table 25-1 lists the types of maintenance for the crossbar cables (optical). For the
definition of maintenance, see "4.3 Understanding Types of Maintenance."
25.2.2 Maintenance flow
Table 25-2 lists the sequence of the maintenance procedure for the crossbar cables
(optical).
25.2.3 Precautions for replacement
Note the following when replacing the crossbar cables (optical):
■
Replace the crossbar cables (optical) in pairs.
■
Do not place heavy objects on the crossbar cables (optical).
Fujitsu M10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual
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December 2013392