User's Guide

Installing the Autoloaders Installing the Internal Autoloader
26
Figure 7. Interface Connectors on the Internal Autoloader
Installing SCSI Termination
The internal autoloader does not provide SCSI termination. For this reason, it should not be the last
device on a SCSI chain. However, if the drive is the only SCSI device, attach the drive to the
connector which is next to last on the SCSI chain and attach an LVD/single-ended multi-mode
terminator to the last connector in the chain. Two termination examples are shown in Figure 8 on
page 26 .
Figure 8. Two SCSI Termination Examples for the Internal Autoloader
Power connector
pin 4
+5V
pin 3: GND
(+5V return)
pin 2: GND
(+12V return)
pin 1
12V
Ultra2 SCSI 68-pin
high-density connector
pin 34
pin 68
pin 35
pin 1
Power connector
pin 34
pin 68
Ultra2 SCSI 68-pin high-
density connector
pin 1
pin 35
pin 4
+5V
pin 3: GND
(+5V return)
pin 1
12V
pin 2: GND
(+12V return)
SCSI Device
Internal Tape
Drive
SCSI Controller
(termination enabled)
(termination enabled)
SCSI Terminator
(no
termination)
SCSI Device
SCSI Controller
(termination enabled)
(termination
disabled)
Internal Tape
Drive
Internal Tape
Drive
(termination
disabled)
SCSI Device
(no
termination)