Apple PowerBook G3 - Manual (Page 35)

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 Macintosh PowerBook as a hard disk
You can purchase a cable called the Apple HDI-30 SCSI Disk Adapter that
lets you connect your Macintosh PowerBook to another computer as a hard
disk. The PowerBook’s internal hard disk drive 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 cable is dark gray, is about 10 inches
long, and has 30 pins.
IMPORTANT Whenever you use your PowerBook in SCSI disk mode, be sure
that the power adapter is plugged in. If you connect the PowerBook as a SCSI
disk under battery power, the battery’s low-power warning will not be
displayed and the computer may shut down because the battery is drained.
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
35 Connecting Additional Equipment