strobe.
An
instrument
that
emits adjustable-rate flashes of light.
Used to measure the speed
of
rotating
or
vibrating objects.
STX. Start-of-text.
symbol.
(1)
A conventional representation of a concept. (2) A
representation of something by reason of relationship,
association, or convention.
synchronization. The process of adjusting the corresponding
significant instants of two signals to obtain the desired phase
relationship between these instants.
Synchronous Data Link Control (SDLC). A protocol for
management of data transfer over a data link.
synchronous transmission.
(1)
Data
transmission in which the time
of occurrence of each signal representing a bit
is
related to a fixed
time frame. (2)
Data
transmission in which the sending and
receiving devices are operating continuously
at
substantially the
same frequency and are maintained, by means of correction, in a
desired phase relationship.
syntax. (1) The relationship among characters or groups of
characters, independent of their meanings or the manner of their
interpretation and use. (2) The structure of expressions in a
language. (3) The rules governing the structure of a language.
(4) The relationships among symbols.
text. In ASCII and data communication, a sequence of characters
treated as
an
entity if preceded and terminated by one STX and
one
ETX
transmission control character, respectively.
time-out. (1) A parameter related
to
an enforced event designed
to
occur
at
the conclusion
of
a predetermined elapsed time. A
time-out condition can
be
cancelled by the receipt
of
an
appropriate time-out cancellation signal. (2) A time interval
Glossary-33
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