Sun Microsystems 5500, Справочное руководство

Страница: 191 / 304

Appendix B Functional Description B-3
FIGURE B-1
Enterprise System Logical Organization
There are few differences between board slots and each slot can accept any board
type. However, an I/O+ board should be installed in slot 1 since this slot connects
directly to the internal media tray through the centerplane and related cables. The
internal tape and/or CD-ROM or other optional internal SCSI drives cannot be used
unless an I/O+ board is present in slot 1.
Although the remaining slots are equivalent, I/O+ boards should be located on the
back side of the centerplane for easy access to interface cables at the rear of the
cabinet.
Address bus
Data bus
CPU/
board
CPU 1
CPU 0
8x Data
controller Address
controller
Memory
I/O+ board
SBus 1
SYSIO 1
SYSIO 0
SBus 0
8x Data
controller Address
controller