Fujitsu M10-4 Service Manual page 365

Figure B-1 Location of backplane of SPARC M10-4/M10-4S
The PSU backplane is installed on the PSU backplane unit. The PSU backplane alone
cannot be replaced. Replace it together with the PSU backplane unit.
Table B-7 lists the specifications of the PSU backplane unit.
Table B-7 Specifications of PSU backplane unit (SPARC M10-4/M10-4S)
Item
Number of PSU
backplane units
Location
Type of maintenance
Maintenance category
For the maintenance procedure, see
Unit/Operation Panel."
Description
1
Inside of chassis
See "Table 7-2 List of available maintenance types by
Replacement
"Chapter 13 Maintaining the PSU Backplane
Appendix B Component Specifications
A
FRU."
351