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2torial #0431:
Learn2 Connect External SCSI Devices (Macintosh
OS) - Continued
 Make the connections (for standard
SCSI)
This step describes the connection process for the standard SCSI
device. If you're working with a Fast/Wide SCSI device, skip to
the first bulleted item below.
First: Take a look at your desk area and clear a space for your
external devices. Make sure there are enough power outlets available,
and that all power cords will reach the devices. Turn off your computer
(save your files!), and power down all the external devices.
- Take the DB 25-pin to 50-pin cable and fit
the smaller end of it over the SCSI port on the
back of your computer, then screw down the
fasteners on each side. The port will have this
symbol over it:
- Now take the larger end of the cable and fit
it over either of the two connectors on the
external device. Screw down the fasteners...or
if the fasteners are clips, clip them firmly
into place
- If you only have the one external device,
you need to terminate it now. If it has built-in
termination, make sure that the indicator light
on the device is lit. Otherwise fit either your
passive or active terminator over the second
connector on the device.
- On the other hand, if you have additional
devices to install, take a 50-pin to 50-pin
cable and fit one end over the second connector
on the first device. Now fit the other end over
either connector on the next device. Repeat this
step until you run out of devices (or money to
buy them).
Remember that the last device in the chain needs
to be terminated, either by built-in termination or
by placing a terminator over the second, exposed
connector. The more devices in the chain, or the
more temperamental those devices are, the more
likely you'll need "active" termination to make
everything work correctly all the time. Step
3
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