Data General AViiON 4600 Series, Customer Documentation

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Setting Up and Installing a SCSI Bus
4-2
014–002091
Your computer unit includes at least one single-ended SCSI bus controller that
supports your internal disk, tape, diskette, and CDĆROM drives. This controller is
factory-specified as Controller 0 and the bus it supports extends to the external
connector labeled SCSI A on your computer's rear panel. An optional second SCSI bus
controller (provided on an I/O expansion board) is factory-specified as Controller 1.
The second controller supports a bus extending from the connector marked SCSI B on
the rear panel. Each SCSI bus in your system can support a total of seven devices
housed internally, independently, or within a mass-storage subsystem.
Figure 4Ć1 shows the location of the SCSI connectors on the rear panel of your
computer. (If your system does not include a second SCSI controller, the rear panel
slot marked SCSI B will not contain a connector.)
Computer Unit
Rear Panel
For I/O expansion
board (Optional)
SCSI
A
SCSI
B
First SCSI connector
Second SCSI connector
(optional)
Figure 4-1 AViiON 530 and 4600 Series SCSI Bus Connectors