Adaptec USBConnect2000 User Manual

Contents

7Understanding SCSIUnderstanding SCSISCSI (pronounced “scuzzy”) stands for Small Computer SystemInterface. SCSI is an industry standard computer interface forconnecting SCSI devices (such as hard disk drives, CD-ROM drives,and scanners) to a common SCSI bus.A SCSI bus is an electrical pathway consisting of a SCSI adapter(such as the SlimSCSI® Adapter) installed in a computer and one ormore SCSI devices. SCSI cables are used to connect the devices to theSCSI card. For the SCSI bus to function properly, SCSI IDs must beassigned to the SCSI devices and the SCSI adapter, and the SCSI busmust be properly terminated.SCSI IDsEach device attached to the USBConnect 2000 adapter, as well as theadapter itself, must be assigned a unique SCSI ID number from 0 to6. A SCSI ID uniquely identifies each SCSI device on the SCSI busand determines priority when two or more devices are trying to usethe SCSI bus at the same time.n The USBConnect 2000 adapter is preset to SCSI ID 7, whichgives it the highest priority on the SCSI bus.n In Windows® 95/98 you can use the Device Manager to viewthe SCSI ID and other information about each installed SCSIdevice.n If you installed Adaptec EZ-SCSI® software, you can use theSCSIExplorer™ utility to view the SCSI ID and other informa-tion about each installed SCSI device.