User's Manual

16 Scorpion 240 Product Manual
Parity checking (pins 9 and 10)
If a jumper is installed on pins 9 and 10 (the default setting), parity checking is
enabled. If no jumper is installed, parity checking is disabled, but parity is still
generated by the drive.
Terminator power (pins 11 and 12)
Internal Scorpion 240 drives are shipped with terminator power disabled (no jumper
across pins 11 and 12). You can enable terminator power, if necessary, by placing a
jumper across pins 11 and 12.
Note: The internal Scorpion 240 does not provide SCSI termination, and therefore
should not be installed as the last device in a SCSI chain. See page 19 for
details.
Dip-switch settings
To change data compression, MRS checking, power-on self-test diagnostics,
operating system settings, Wide/Narrow SCSI selection, or the drive’s inquiry string,
you must use the dip switches on the underside of the internal drive. Figure 5 shows
the location of dip switches on the
underside of the Scorpion 240. Each of these
switches is described in detail on the following pages.
Note: Power down the drive before changing jumpers or dip switches. Changes
take effect when the drive is powered on.
Data compression (DC)
SCSI DC control
Media recognition
Self Test
Wide/Narrow SCSI
Inquiry String support
1
2
3
4
5
6
7
8
9
10
O
N
Default settings shown
Operating-system
configuration
switches
Figure 5 Dip-switch settings for internal Scorpion 240