Connecting The Scsi Interface Cable A - Seagate Scorpion 240 DDS-4 Autoloader Manuel D'installation

A-16
Connecting the SCSI interface cable
Turn off all power to your computer and drive. Then connect a
68-pin wide internal SCSI cable from your SCSI controller to
the SCSI connector on the back of the autoloader. Make sure
that pin 1 on the SCSI controller and cable is connected to pin
1 on the drive. Figure 4 shows the location of SCSI pin 1 on
the drive's SCSI connector. Pin 1 on the SCSI cable should
be indicated by a colored stripe.
Scorpion 240 drives can be used with two different types of
SCSI interfaces: Ultra2 SCSI (LVD) or "Wide" (16-bit) single-
ended SCSI. The drive can automatically detect whether it is
connected to an LVD or single-ended wide SCSI bus.
Note: The Scorpion 240 will not operate properly in a SCSI-1
Figure 4. Interface connectors on internal Scorpion 240
pin 34
pin 68
SCSI Termination
The internal Scorpion 240 does not provide SCSI termination.
For this reason, it should not be the last device on a SCSI
chain. Two termination examples are shown in Figure 5 on
the following page. If the drive is the only SCSI device, attach
the drive to the connector which is next to last on the SCSI
Scorpion 240 Autoloader Installation Manual
environment.
Ultra2 SCSI 68-pin
high-density connector
Power connector
pin 1
pin 4
+5V
pin 35
pin 3: GND
(+5V return)
pin 1
12V
pin 2: GND
(+12V return)