s
Seconds of time.
SAC
Service Action Code. Code that is developed to indicate possible FRU or FRUs to replace to repair the hardware.
SAS
Serial Attached SCSI interface.
scratch cartridge
A data cartridge that contains no useful data, but can be written to with new data.
SCSI
Small computer system interface.
segment
A part.
sel
Select.
serialize
To change from parallel-by-byte to serial-by-bit.
serializer
A device that converts a space distribution of simultaneous states that represents data into a corresponding time sequence of states.
servo, servos
An adjective for use in qualifying some part or aspect of a servomechanism.
servomechanism
A feedback control system in which at least one of the system signals represents mechanical motion.
Small Computer Systems Interface (SCSI)
A standard that is used by computer manufacturers for attaching peripheral devices (such as tape drives, hard disks, CD-ROM players, printers, and
scanners) to computers (servers). Pronounced “scuzzy”. Variations of the SCSI interface provide for faster data transmission rates than standard serial and
parallel ports (up to 160 megabytes per second). The variations include
Fast/Wide SCSI: Uses a 16-bit bus, and supports data rates of up to 20 MBps.
SCSI-1: Uses an 8-bit bus, and supports data rates of 4 MBps.
SCSI-2: Same as SCSI-1, but uses a 50-pin connector instead of a 25-pin connector, and supports multiple devices.
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.
IBM TS22xx Tape Drives
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Summary of Contents for TS22 Series
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