(1)
Location
number
Component
1 Crossbarback plane unit (XBBPU)
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."
Figure21-1 Locationof crossbar backplane unit
21.2 Before Maintaining the CrossbarBackplane Unit
Thissectio n describes the types and the flow of maintenance of the crossbar
backplane unit.
21.2.1 Types of maintenance
Table21-1 lists the types of maintenance for the crossbar backplane unit. For the
definitionof maintenance, see "4.3 Understanding Types of Maintenance."
FujitsuM10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ・December 2013344