Appendix BComponent Specifications
Thisa ppendix provides the specifications of the components.
Theco mponents that constitute the SPARC M10-4/M10-4S and the crossbar box are
asfollows.

Components that constitutethe SPA RC M10-4/M10-4S

■CPUMemory Unit
■Crossbar Unit
■Power Supply Unit
■FanUnit
■Internal Disk Drive
■PCIExpress Card
■Backplanes
■OperationPanel

Components that constitutethe crossbar box

■Crossbar Unit
■XSCF Unit
■XSCF Interface Unit
■Power Supply Unit
■FanUnit
■Backplanes
■OperationPanel
B.1 CPU Memory Unit
TheCPU memory unit of the SPARC M10-4/M10-4S consists of two units: the upper
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