Data General 6675, Инструкции по установке и эксплуатации

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1
014–001953
Installing the Drive
This section explains how to install the Models 6675, 6676, 6677, and 6756
half–height 1/4–inch cartridge tape drives in a Data General computer or
mass–storage subsystem that uses the small computer system interface (SCSI).
Table 1 highlights the specifications for the cartridge tape drive and removable tape
cartridge. Refer to the information in this table as needed.
Table 1 Specifications for the Cartridge Tape Drive and Removable Tape
Cartridges
Cartridge Tape Drive
Interface SCSI-1
± 12 V dc ( ± 5%) .50 A (maximum)
+ 5 V dc (
±
12%) .90 A (maximum)
Power Dissipation
±
12 V dc 15.0 W
+ 5 V dc 3.1 W
Weight 1.36 kg (3 lbs)
Removable Tape Cartridge
Format
1
Capacity Tape Speed
QIC-24
2
60 Mbytes 90 ips
QIC-120 125 Mbytes 90 ips
QIC-150 150 Mbytes 90 ips
QIC-320 320 Mbytes 120 ips
QIC-525 525 Mbytes 120 ips
1
The actual format imposed on a blank tape depends on which size cartridge tape you use. When
you write to QIC–24 or QIC–150 tapes, a QIC–150 format is imposed. When you write to
QIC–320 or QIC–525 tapes, a QIC–525 format is imposed. If you want to use a QIC–320 tape to
transfer data from this stand–alone cartridge tape drive to a 150–Mbyte tape drive, you must
first write to the QIC–320 tape from the 150–Mbyte tape drive to impose the correct format.
2
Read only.
NOTE: The environmental specifications for the cartridge tape drive meet or exceed those of the
Data General computer or mass–storage subsystem in which you install this cartridge tape
drive. Refer to your Data General computer or mass–storage subsystem installation manual
for the environmental specifications.
Prerequisites
Make sure that the system in which you will install the drive meets the following
hardware and software requirements.