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- RS-232 defines voltage levels for data transmission and control signal lines12345:
- Valid signals are either in the range of +3 to +15 volts or the range −3 to −15 volts with respect to the “Common Ground” (GND) pin.
- The range between −3 to +3 volts is not a valid RS-232 level.
- The maximum open-circuit voltage is 25 volts, but common signal levels are 5 V, 10 V, 12 V, and 15 V.
- Mark is defined as +3V to +25V, and Space is -3V to -25V concerning signal ground.
- +12 Volts (usually +3 to +10 Volts) represents a binary 0, and -12 Volts (-3 to -10 Volts) represents a binary 1.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The RS-232 defines the voltage levels that correspond to logical one and logical zero levels for the data transmission and the control signal lines. Valid signals are either in the range of +3 to +15 volts or the range −3 to −15 volts with respect to the “Common Ground” (GND) pin; the range between −3 to +3 volts is not a valid RS-232 level.www.automation--expert.com/rs232/rs232-voltage-l…RS232 data is bi-polar. The standard specifies a maximum open-circuit voltage of 25 volts, but common signal levels are 5 V, 10 V, 12 V, and 15 V. Circuits driving an RS-232-compatible interface must be able to withstand indefinite short circuit to ground or to any voltage level up to 25 volts.pinoutguide.com/SerialPorts/RS232_pinout.shtmlRS232 defines voltage levels that the transmitting device (such as a PC) uses to send data. These voltage levels are referred to as “mark” and “space”. Mark is defined to be +3V to +25V concerning signal ground and Space is -3V to -25V concerning signal ground.electronicshacks.com/how-rs232-works/Voltage levels are defined as a range from -12 to +12 Volts. RS-232 is also single-ended. This means that a single electrical signal is compared to a common signal (Ground) to determine binary logic states. A voltage of +12 Volts (usually +3 to +10 Volts) represents a binary 0 and -12 Volts (-3 to -10 Volts) is a binary 1.www.advantech.com/en/resources/white-papers/50…The line voltages of RS232 range from -25V to +25V. They are categorized as signal voltage and control voltage. RS232 Voltage Levels The signal voltage between +3V to +25V represents logic ‘1’ and the signal voltages between -3V to -25V represents logic ‘0’.www.codrey.com/embedded-systems/rs232-serial-… - People also ask
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RS-232 - Wikipedia
The RS-232 standard defines the voltage levels that correspond to logical one and logical zero levels for the data transmission and the control signal lines. See more
In telecommunications, RS-232 or Recommended Standard 232 is a standard originally introduced in 1960 for serial communication transmission of data. It formally defines signals connecting between a DTE ( See more
RS-232 was first introduced in 1960 by the Electronic Industries Association (EIA) as a Recommended Standard. The original DTEs were electromechanical teletypewriters, … See more
The following table lists commonly used RS-232 signals (called "circuits" in the specifications) and their pin assignments on the recommended … See more
The Electronic Industries Association (EIA) standard RS-232-C as of 1969 defines:
• Electrical … See moreBecause RS-232 is used beyond the original purpose of interconnecting a terminal with a modem, successor standards have been … See more
In RS-232, user data is sent as a time-series of bits. Both synchronous and asynchronous transmissions are supported by the … See more
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