Section 2. Installing Your PlexWriter SCSI Drive
12
PlexWriter 12/4/32 Operation Manual
Set SCSI Drive Switches
or Jumpers
Your PlexWriter SCSI drive needs to be
flexible enough to work with the variety
of computer systems and a number of
other SCSI peripherals. To provide this
flexibility, Plextor lets you specify the
drive’s settings before it is installed. On
an internal SCSI drive, you determine
settings by the position of jumpers on the
jumper block at the rear of the drive. On
an external drive, you determine settings
by the position of DIP switches and the
rotary dial on the rear panel of the drive.
Your drive ships from our factory with its
jumpers, switches, and/or dial set to work
in the most commonly found
environment. You should leave those
switches and jumpers at their factory
settings, unless: 1) you plan to use
another SCSI peripheral (e.g., CD-ROM,
hard disk, scanner) with your computer
system in addition to your PlexWriter; or
2) you find it necessary to change the
block size setting (most likely in an older
UNIX system).
Do I Have to Change My PlexWriter’s SCSI ID Number?
Your PlexWriter SCSI drive is shipped from the factory with its SCSI ID number set
to 4. The SCSI interface lets you chain several SCSI peripheral devices to a single
SCSI interface board, or to the SCSI port of an Apple computer, with no loss of
performance.
NOTE: The cable length of all SCSI chain cables should not exceed 1.5 meters.
However, each peripheral must have a unique SCSI ID number—your PlexWriter
can have any of 8 numbers (0-7). SCSI ID 7 is typically reserved by the SCSI
interface board.
Quickstart Installation
(Continued)
Scenario 3: You have a SCSI board that
is not Plug and Play/SCAM-capable,
and you have Windows 95 or 98.
What to do: Set a unique SCSI ID
number for the PlexWriter, and make
sure all other peripherals have their own
SCSI numbers. Set the termination of
each peripheral OFF; except set the
termination of the last peripheral
devices on each side of the chain to ON.
Other scenarios, or if you have
problems: Better take a closer look at
this chapter and at “Appendix B:
Installing a SCSI Drive in Windows.”
