User's Guide

Installing the Autoloaders Installing the Internal Autoloader
21
Changing Jumper Settings
Jumpers on the back of the internal drive let you change the following drive settings (see Figure 4 ):
• SCSI ID
• Parity checking
• SCSI termination power
Figure 4. Jumper Pins on the Back of the Internal Autoloader
SCSI Address Selection (pins 1 through 8)
NOTE. Power down the drive before changing jumper settings. Changes take effect when the
drive restarts.
Default jumper settings shown
(SCSI ID 6, parity checking enabled,
and termination power disabled)
Pins: Function:
1-2 SCSI ID bit 0
3-4 SCSI ID bit 1
5-6 SCSI ID bit 2
7-8 SCSI ID bit 3
9-10 Parity checking
11-12 Termination Power
Default jumper settings shown
(SCSI ID 6, parity checking enabled,
and termination power disabled)
Pins: Function:
1-2 SCSI ID bit 0
3-4 SCSI ID bit 1
5-6 SCSI ID bit 2
7-8 SCSI ID bit 3
9-10 Parity checking
11-12 Termination Power
SCSI ID=0
Parity enable
SCSI ID=1
SCSI ID=2
SCSI ID=3
SCSI ID=4
SCSI ID=5
SCSI ID=6
SCSI ID=7
SCSI ID=0SCSI ID=15
SCSI ID=14
SCSI ID=13
SCSI ID=12
SCSI ID=11
SCSI ID=10
Term. Power
SCSI ID=9
SCSI ID=8