Apple Macintosh PowerBook 190 Series - Manual (Page 65)

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 which
lets you connect your Macintosh 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 cable is dark gray, is about 10 inches
long, and has 30 pins.
WARNING Follow the steps for connecting and disconnecting SCSI
devices carefully to avoid loss of information and damage to your
equipment.
Connecting more than one SCSI device
Terminator
(If this SCSI device has an internal terminator, omit this external terminator.)
SCSI peripheral interface cables HDI-30 SCSI
system cable
Terminator
(If this SCSI device has an internal terminator, omit this external terminator.)
Connecting one SCSI device
Terminator
(If this SCSI device has an internal
terminator, omit this external terminator.)
Terminator
HDI-30 SCSI system cable
55 Connecting Additional Equipment