FUJITSU SPARC ENTERPRISE M8000 - Manual (Page 463)

Appendix B Components B-17
B.11 XSCF Unit
XSCF unit (XSCFU: eXtended System Control Facility unit) controls the system.
Two types of XSCFU are available: the XSCFU_B for the high-end servers and
XSCFU_C for the expansion cabinet of the M9000. XSCFU_B has a connector for
cable connection to XSCFU_C provided for expansion cabinet use. XSCFU_C has no
functions for controlling the system, but it provides an interface for passing the
status of each unit in the expansion cabinet to XSCFU_B.
FIGURE B-11 and FIGURE B-12 show the XSCFU respectively.
FIGURE B-11 eXtended System Control Facility Unit (XSCFU_B)