RS-232

RS-232

It is basically a interface standards.
It is commonly used in computer serial ports.
The standard defines the electrical characteristics and timing of signals.
The current version of the standard is TIA
In RS-232, user data is sent as a time series of bits.
Both synchronous and asynchronous transmissions are supported by the standard.
RS-232 devices may be classified as Data Terminal Equipment (DTE) or Data Communication as modems, that are responsible for data transferring Equipment (DCE), this defines that each device which wires will be sending and receiving each signal.
DTE refers to terminals and computers that sends and receives data.
DCE refers to communication equipment.
An RS-232 serial port was once a standard feature of a personal computer, used for connections to modems, printers, mouse, data storage, uninterruptible power supplies, and other peripheral device

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