User`s guide

Chapter 2 Installing Internal Tape Drives
Connecting a SCSI Cable
26 DDS-4/DAT 72 User’s Guide
The tape drive automatically detects whether the SCSI bus is LVD or
single ended. Be sure the SCSI bus is terminated properly.
Connecting to a
Wide SCSI
Connector
2
If your computer has a 68-pin wide SCSI connector:
1 Attach the interface cable from the SCSI host adapter to the 68-pin
SCSI interface connector on the back of the internal tape drive.
Figure 8 SCSI
Interface Connector
on the Internal
Tape Drive
Connecting to a
Narrow SCSI
Connector
2
The internal tape drives have an Ultra Wide SCSI interface. Obtaining a
50-to-68 pin adapter lets you connect the 68 pins on the internal tape
drive to the 50 pins on the computer’s narrow SCSI bus.
1 Connect the adapter to your computer’s 50-pin SCSI connector.
Note: We strongly recommend that you attach the tape drive to SCSI
controllers that support the SCSI Ultra2 LVD interface only.
Attaching the tape drive to a non-LVD SCSI controller or an 8-
bit Narrow SCSI controller will degrade the performance of
your tape drive and backup operations. Performance will also
be degraded if you attach non-LVD SCSI devices on the same
bus cable as your LVD connection. Do not connect the tape
drive to a disk RAID controller (disk RAID controllers are not
supported). If you install an adapter, we recommend you
purchase a SCSI LVD controller kit that includes the SCSI cable
and terminator.