The RS-232 standard had been commonly used in computer serial ports and is still widely used in industrial communication devices.Ī serial port complying with the RS-232 standard was once a standard feature of many types of computers. 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. The standard defines the electrical characteristics and timing of signals, the meaning of signals, and the physical size and pinout of connectors. It formally defines signals connecting between a DTE ( data terminal equipment) such as a computer terminal, and a DCE ( data circuit-terminating equipment or data communication equipment), such as a modem. In telecommunications, RS-232 or Recommended Standard 232 is a standard originally introduced in 1960 for serial communication transmission of data. Telefonnetz refers to a telephone network EIA-232 is an old name for RS-232, the serial communication standard. Data circuit-terminating equipment (DCE) and data terminal equipment (DTE) network.
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