Apple PowerBook (Duo, 2300 Series) - Manual (Page 53)

Where to add cable terminators when connecting a single SCSI device:
Where to add cable terminators when connecting two or more SCSI devices:
Using your PowerBook as a hard disk
If you have a PowerBook Duo MiniDock, you can purchase a cable called
the Apple HDI-30 SCSI Disk Adapter, which lets you connect your
PowerBook to another computer as a hard disk. The PowerBook appears on
the desktop of the other computer as a hard disk icon, and you can transfer
information between the computers by dragging files. This feature is called
SCSI disk mode.
The Apple HDI-30 SCSI Disk Adapter is dark gray, is much shorter than the
SCSI system cable, and has 30 pins.
The PowerBook Duo Dock Plus does not support SCSI disk mode.
WARNING Follow the steps for connecting and disconnecting SCSI
devices carefully to avoid loss of information and damage to your
equipment.
SCSI peripheral interface cables HDI-30 SCSI
system cable
Terminator
(If this SCSI device has an internal terminator, omit this external terminator.)
Terminator
(If this SCSI device has an internal
terminator, omit this external terminator.)
HDI-30 SCSI system cable
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