Ultra SCSI: Uses an 8- or 16-bit bus, and supports data rates of 20 or 40 MBps.
Ultra2 SCSI: Uses an 8- or 16-bit bus and supports data rates of 40 or 80 MBps.
Ultra3 SCSI: Uses a 16-bit bus and supports data rates of 80 or 160 MBps.
Ultra160 SCSI: Uses a 16-bit bus and supports data rates of 80 or 160 MBps.
SNS
Sense.
special feature
A feature that can be ordered to enhance the capability, storage capacity, or performance of a product, but is not essential for its basic work.
SR
Service representative, see also CE.
SRAM
Static Random Access Memory.
SS
Status store.
ST
Store.
standard feature
The significant design elements of a product that are included as part of the fundamental product.
START
Start maintenance.
subsystem
A secondary or subordinate system, capable of operating independently of, or asynchronously with, a controlling system.
SUPP
Support.
sync
Synchronous, synchronize. Occurring with a regular or predictable time relationship.
T
tachometer, tach
A device that emits pulses that are used to measure/check speed or distance.
tape cartridge
A container-holding magnetic tape that can be processed without separating it from the container.
tape void
An area in the tape in which no signal can be detected.
TB
terabyte
TCP/IP
Transmission Control Protocol/Internet Protocol.
TCU
Tape control unit.
Terabyte
One terabyte (TB) = 1,000,000,000,000 bytes, or 1000 gigabytes (GBs).
TH
Thermal.
thread/load operation
A procedure that places tape along the tape path.
TM
Tapemark.
U
UART
Universal asynchronous receiver/transmitter.
Universal Serial Bus (USB)
An interface standard that manufacturers use to connect peripheral devices (such as tape drives, hard disk drives, and printers) to computers (host servers).
Variations of the USB interface have different data transmission rates. The variations include USB 1.1, USB 2.0, USB 3.0.
unload
Prepare the tape cartridge for removal from the drive.
utilities
Utility programs.
utility programs
A computer program in general support of the processes of a computer; for instance, a diagnostic program.
uv
Under voltage.
V
VOLSER
Volume serial number.
volume
A certain portion of data, together with its data carrier, that can be handled conveniently as a unit.
VPD
Vital product data. The information that is contained within the tape drive that requires nonvolatile storage that is used by functional areas of the drive, and
information that is required for manufacturing, RAS, and engineering.
150
IBM TS22xx - TS2290, TS2280, and TS2270
