B

SBus slot 2

UPA slot

Fiber interface 1

SBus slot 0

Fiber interface 0

Fast wide SCSI

Twisted-pair Ethernet

MII external transceiver

Figure B-8Graphics I/O Board

Note – Slot 1 requires an SBus I/O board or Graphics I/O board because slot 1 connects with the internal SCSI tray. If slot 1 does not contain an I/O board, the drives in the SCSI tray will not function.

For easy access to I/O cables, I/O boards should be installed in the rear of the cabinet, with CPU/Memory boards in the front of the cabinet. I/O boards should be installed from the smallest odd-numbered slot (1) to the largest odd- numbered slot (7 or 15). The odd-numbered slots are located at the rear of the cabinet. When located in these slots, the board is oriented so that the component side is up.

If the rear slots are filled, you can use slots at the front of the cabinet. When located in a front slot, the board is oriented so that the component side is down.

Functional Description

B-11

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Sun Microsystems 6.0005E+11 manual Figure B-8Graphics I/O Board