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Connecting external SCSI devices
Your computer has a port for connecting devices that use the Small Computer
System Interface (SCSI, pronounced “skuh-zee”). The SCSI port permits
high-speed communication between the computer and the device. The SCSI
icon appears below the port on the computer’s back panel.
You can connect SCSI devices to the SCSI port in a chain. SCSI devices
commonly used with the Macintosh include hard disk drives, CD-ROM
drives, scanners, some printers, and tape or cartridge backup drives.
Your Macintosh can support a chain of up to six SCSI devices. The internal
CD-ROM drive (if you have one) is the first device in the chain. Therefore,
you can attach up to five external SCSI devices to your computer. (If you do
not have an internal SCSI device installed, you can attach up to six external
SCSI devices to your computer.) The first external device plugs into the SCSI
port; the second device plugs into the first device, and so on. All SCSI devices
connected to this chain must have their own unique ID number.
IMPORTANT
The next sections, “Before You Connect a Device” and
“Connecting a SCSI Device,” contain general instructions for attaching SCSI
devices to your computer. Be sure also to follow the specific instructions that
came with your external hard disk drive or other SCSI device when
connecting the device to your Macintosh.
SCSI port
SCSI icon
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Expanding Your Computer and Using Special Features