User Guide

Introduction to SCSI-2
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1
The SCSI-2 architecture allows for multiple devices on the bus
where more than one host computer can communicate with more
than one target at a time. They can be daisy-chained together in a
narrow configuration using a 50-conductor, 8-bit cable to connect up
to 8 SCSI devices on the bus. A
wide configuration expands the bus
to a 68-conductor, 16-bit bus that can handle up to 16 SCSI devices.
They can be intermixed on the same bus.
Figure 1-4. Multiple Device Configuration
Computer
Host
Adapter
SCSI BUS
Peripheral
SCSI
Controller
Peripheral
Peripheral
SCSI
Controller
Peripheral
Peripheral
SCSI
Controller
Peripheral
Computer
Host
Adapter
SCSI BUS