User`s guide
Appendix B SCSI Configuration Guide
SCSI Cables
Quantum DAT 160 User’s Guide 61
Cable Quality 2
• It is important to use good quality cables. Generally speaking, cable
quality affects performance and reliability. This is particularly true
for external, shielded cables.
• Look after your SCSI cables. In particular, take care when connecting
or disconnecting not to damage the high-density connectors. Avoid
putting excessive twists in external shielded cables, as this can cause
premature failure.
With Internal Devices
2
For Quantum DAT internal devices, you need a SCSI ribbon cable with
the correct termination. The drives have a 68-pin wide, high-density SCSI
connector. If you are using an Quantum DAT drive on an internal bus
with other peripherals that run at Ultra160 speeds, it is important that a
68-pin LVD-compatible ribbon cable is used. Do not connect your tape
drive to lower-rated SCSI or to narrow SCSI.
With External Devices
2
The cable provided with all Quantum DAT external tape drives and
autoloaders will attach to a computer with a wide, very high density
(VHD), LVDS SCSI connector.
If your server or host bus adapter is equipped with a high density (HD)
wide SCSI connector, you will need to order a 68-pin VHD-to-HD
converter or 68-pin VHD-to-HD cable (see www.quantum.com/
ServiceandSupport/Index.aspx).
With Removable Devices
2
For Quantum DAT removable tape drives, appropriate cables and
terminators are provided with the tape array.
Note on SE and LVD
Interfaces
2
SE and LVD define how the signals are transmitted along the cable.