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CHAPTER 6: SCSI and Controller Interface Specification
6.8 SCSI and Power Connectors
This section describes how to use the connectors that are provided on the back of
the SDLT tape drive. The arrangement of these connectors is shown in
on page
6-4.
6.8.1 Power
The pin orientation for the 4-pin power connector (TERMPWR) located on the
back of the internal tape drive is shown in
assignments for the power connector are listed in
6.8.2 SCSI
Pin assignments for the three possible SCSI connectors are listed in Tables
through 6-8; Multimode Single-Ended (MSE) and Single Ended (SE) mode in
Table 6-6 on page
on page
6-12, and High Voltage Differential (HVD) mode in
page
6-13.
Prior to connecting the SDLT drive to the host computer, make sure the drive
1.
and computer are turned OFF.
If you are connecting several devices to the SCSI bus, connect only the drive
2.
to the host computer at this time. Confirm that the host computer and drive are
communicating correctly before adding additional devices.
The SCSI bus must be terminated at each end. This drive may need to be
3.
terminated:
if the SDLT drive is the only device connected to the SCSI bus, OR
if the SDLT drive is one of several devices connected to the SCSI bus,
and it is the last device connected to the SCSI bus.
If the answer to step
4.
SCSI connector; then attach the SCSI cable to one leg of the "Y" and attach
the terminator to the other leg. Carefully connect the cables, to avoid bending
or damaging the connector pins.
6-10, MSE Low Voltage Differential (LVD) mode in
3
was affirmative, attach a "Y" connector to the drive's
Figure 6-4 on page
6-15. Pin
Table 6-9 on page
Table 6-8 on
Figure 6-1
6-14.
6-6
Table 6-7
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