Section 2. Installing Your PlexWriter SCSI Drive
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PlexWriter 12/4/32 Operation Manual
If you have both internal and external SCSI peripherals (both the internal and
external connectors of your host adapter are used), then the termination of your SCSI
interface board should be removed, disabled or turned OFF. The last peripheral on
your internal cable and the last peripheral on your external SCSI chain should retain
their termination (have it set ON). All other SCSI peripherals connected to the host
adapter should have their termination removed, disabled, or turned off.
NOTE: The SCSI interface board that is bundled in the Plextor kits has Auto
Termination, so turning off its termination is unnecessary. However, you still must
sometimes specify termination ON or OFF on the PlexWriter drive, as discussed on
page 13.
Setting Switches on a PlexWriter External SCSI Drive
Use this procedure if you have a PlexWriter external SCSI drive. (However, if you
already have a SCSI board installed, an external PlexWriter is the only SCSI
peripheral you will use with your computer, and you do not need to change any
settings, skip now to “Install a PlexWriter External SCSI Drive” on page 28.)
Factory SCSI Switch Settings
A rear-panel rotary dial controls the SCSI ID setting of the external PlexWriter drive,
and other settings are controlled by DIP switches. Figure 8 shows the factory settings
of the rear-panel dial and switches.
Figure 8: Factory Settings for Dial and DIP Switches on External SCSI Drive
CAUTION: Turn the drive’s power OFF before changing the setting of the SCSI ID
dial or the DIP switches.
