Specifications

2.8.2 TZ867-Series Magazine Tape Subsystem
The TZ867 magazine tape subsystem is an electromechanical device that uses
from one to seven CompacTape III cartridges to store from 6 GB to 42 GB of data.
The TZ867 magazine tape subsystem can load and unload tape cartridges to
and from a tape drive for unattended backup, as well as performing single
cartridge operations. The TZ867 subsystem performs automatic, sequential tape
operations.
In addition, the TZ867 subsystem executes operating system commands,
qualifiers, and parameters to store data from user disk areas to the tape drive.
See the Tx867 Series Magazine Tape Subsystem Owner’s Manual for more
information.
2.8.3 SCSI/SDI Adapter-Interface
The TZ8x7 series tape drives use Small Computer System Interface (SCSI) logic
control and data signals. The adapter-interface converts information from SCSI
format to SDI format and vice-versa. The external SDI cable is connected directly
from either the Port A or Port B adapter-interface connector to the controller.
The external interface cable is not connected to the SA900 I/O bulkhead.
See the SA100 User’s Manual for more information.
2.9 Power Controller
The power controller links the internal and external power sources with power
cords. It controls power distribution with bus connectors, a fuse, circuit breaker,
and the Bus/Off/On switch.
• The 881A power controller is used for 120 Vac (60 Hz) storage arrays.
• The 881B power controller is used for 240 Vac (50 Hz) storage arrays.
Note
Some European markets use the 887B power controller which is
electrically the same as the 881B although its physical configuration
is slightly different.
See the 881 Power Controller User Guide for more information.
2.10 Environmental Specifications
The environmental specifications shown in Table 2–1 are applicable to all storage
arrays.
Storage Array Descriptions 2–3