Installation
Installing an Internal DAT24 Drive
15
Enabling SCSI Termination
Active SCSI termination is disabled as the factory default. If the drive is the only device on the SCSI
bus, or if it is the last device on the bus, enable active termination by placing a jumper across pins
11 and 12.
Terminator Power
You can enable terminator power if needed for terminators or other SCSI devices through a jumper
placement. The factory default for internal drives is that terminator power is disabled. To enable ter-
minator power, place a jumper across pins 15 and 16, as shown in Figure 3 on page 14.
The drive contains a terminator power fuse to prevent damage to drive components in case the termi-
nator power is shorted. If terminator power is enabled and the SCSI cable is connected upside
down, for example, this fuse may blow to prevent damage to the drive. If this occurs, the drive will
no longer supply terminator power to the bus. To replace the fuse, return the drive to an authorized
repair facility.
Remote SCSI Address Selection
Use pins 1 through 6 to select the SCSI address remotely. To do so, connect a remote SCSI ID switch
to pins 1 through 6.
•
Pins 1 and 2 configure SCSI ID bit 0.
•
Pins 3 and 4 configure SCSI ID bit 1.
•
Pins 5 and 6 configure SCSI ID bit 2.
Mounting an Internal DAT24 Drive
You can install the internal DAT24 drive horizontally or vertically (on its side).
Mounting the Drive in a 3.5-inch Drive Bay
To mount the drive in a 3.5-inch drive bay, mount the drive using two M3.0 metric screws on each
side of the drive. Do not use screws longer than 4 mm or you may damage the drive. The 3.5-inch
drive has four screw holes on the bottom and five on each side (see Figure 4 on page 16).
Caution. If the jumper is installed, be careful not to short the TERMPWR signal to ground.
NOTE: If you use remote SCSI ID selection, set switches 1 through 3 to the OFF position (see
Figure 1 on page 11).
