Nikon LS-2000 - Manual (Page 25)

- 25 - Setup: Connecting the SCSI Cable
✔
SCSI Connection Checklist
• Turn off the computer, the LS-2000, and all SCSI devices
before connecting the scanner.
• Be sure that the devices at both ends of the SCSI chain are
terminated. If the host computer is a Macintosh, the chain
will already be terminated at the computer end. In the case
of IBM PC/AT compatibles in a chain which contains external
devices only, the chain should be terminated at the SCSI
board. In the case of a chain which includes internal devices,
you may need to remove termination from the board and
terminate the last internal device.
• The maximum number of SCSI devices that can be con-
nected in a single chain is eight, including the computer and
any internal SCSI devices such as hard disks or CD-ROM
drives.
• The total length of cabling in the SCSI chain should be no
more than six meters (twenty feet). The longer the cabling,
the less reliable the connection.
• When using a SCSI extension board with an IBM PC/AT
compatible computer, be sure that you have the latest
available driver software for your board. If you experience
trouble with SCSI connections, contact the manufacturer to
learn whether an updated driver has been released.
Setting the SCSI ID
Each device in the SCSI chain has a unique ID, which is a num-
ber between zero and seven that the computer uses to distin-
guish between different devices. When connecting the LS-2000
to a SCSI chain, the scanner’s SCSI ID must be set to a number
that is not shared by any of the other devices, including the
computer itself.
The scanner’s SCSI ID is indicated by the SCSI ID dial on the
rear panel. Before the scanner leaves the factory, the ID is set
to “2.”
SCSI ID
6
5 4
3
2
1
0
7
When choosing another ID for the scanner, bear in mind that
the computer will usually have an ID of either “0” or “7,” and
that internal hard disks often have IDs of “0” or “1.” In the case
of Macintosh computers, the computer will have an ID of “7,”
while the internal hard disk and CD-ROM drive often have IDs
of “0” and “3,” respectively. In general, it is recommended that
you set the scanner’s ID to any number other than zero, one,
three, and seven that is not used by another SCSI device.
✔
Caution: Assigning the same ID to two different devices
could render the computer system inoperable or result in important
data on a hard disk being lost or corrupted.