Note- Read andunderstan d the instructions in this chapter before starting the maintenance
work.Also see t he contents of "Chapter 1 BeforeStartin g Maintenance Work."
Table25-1 Typesof main tenance for crossbar cables (optical)
Configuration Active/hot Active/cold Inactive/hot Inactive/cold Systemstopped
Witha crossbarbox Unsupported Unsupported Unsupported Supported Supported
Table25-2 Maintenancef low
Task Replacement
1 Preparation 25.3
2 Removingthe crossbar cables (optical) 25.4
3 Installingthe crossbar cables(optical) 25.5
4 Restoringthe system 25.6
25.2 Before M aintaining a Crossbar Cable(Optical)Thissectio n 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
Table25-1 lists the types of maintena nce for the crossbar cables (optical). For the
definitionof maintenance, see "4.3 Understanding Types of Maintenance."
25.2.2 Maintenance flow
Table25-2 lists the sequence of the main tenance procedure for the crossbar cables
(optical).
25.2.3 Precautions for replacement
Notethe fo llowing when replacing the crossbar cables (optical):
■Replaceth e crossbar cables (optical) in pairs.
■Do not place heavy objects on the crossbar cables (optical).
FujitsuM10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ・December 2013392