Objective:
- Research about RS 232
Content:
In telecommunications, RS-232 is the
traditional name for a series of standards for serial binary single ended data and control signals
connecting between a DTE (Data Terminal Equipment) and a DCE (Data circuit terminating equipment).
It is commonly used in computer serial port. The standard defines the
electrical characteristics and timing of signals, the meaning of signals, and
the physical size and pin out of connectors. The current version of the
standard is TIA-232-F Interface Between Data Terminal Equipment and Data
Circuit-Terminating Equipment Employing Serial Binary Data Interchange, issued
in 1997.
An RS-232 port was once a standard feature of a personal computer for connections to modem, printer, mice,
data storage, un-interruptible power supplies, and other peripheral devices.
However, the limited transmission speed, relatively large voltage swing, and
large standard connectors motivated development of the universal serial bus which
has displaced RS-232 from most of its peripheral interface roles. Many modern
personal computers have no RS-232 ports and must use an external converter to
connect to older peripherals. Some RS-232 devices are still found especially in
industrial machines or scientific instruments.
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