RS232 Insights

What is RS232?

RS-232 is a standard for serial communication transmission of data. It is commonly used for connecting computer serial ports to peripherals such as printers, mice, and networking devices. It defines the electrical, mechanical, and functional characteristics of the interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE).

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What other technologies are related to RS232?

RS232 Competitor Technologies

RS485

RS485 is a serial communication standard that is often used as a higher-performance alternative to RS232, particularly for longer distances and multi-drop networks.

mentioned alongside RS232 in 52% (4.5k) of relevant job posts

RS422

RS422 is another serial communication standard similar to RS485, offering improved performance over RS232 in terms of distance and noise immunity.

mentioned alongside RS232 in 55% (1.3k) of relevant job posts

I2C

I2C is a short-distance serial communication protocol often used for communication between integrated circuits. It serves a different purpose than RS232 but can be used in systems where RS232 might otherwise be considered.

mentioned alongside RS232 in 8% (4.3k) of relevant job posts

SPI

SPI is another short-distance serial communication protocol. Like I2C, it can be used as an alternative to RS232 in some embedded systems applications.

mentioned alongside RS232 in 7% (4.2k) of relevant job posts

USB

USB is a much faster and more versatile serial communication standard that has largely replaced RS232 in many applications, particularly in connecting peripherals to computers.

mentioned alongside RS232 in 8% (2.6k) of relevant job posts

CAN

CAN bus is a robust serial communication protocol primarily used in automotive and industrial applications. While not directly competing in the same space, it fulfills similar data transfer needs in specific domains.

mentioned alongside RS232 in 5% (3.3k) of relevant job posts

Ethernet

Ethernet is a network protocol that can transmit data serially, but with much higher bandwidth and over much longer distances than RS232. Ethernet is a competitor in applications requiring networking capability.

mentioned alongside RS232 in 3% (3.6k) of relevant job posts

GPIB

GPIB (IEEE-488) is a parallel communication interface used primarily for connecting test and measurement equipment. While different, it serves a similar function of data transfer in specific applications where RS232 might be used.

mentioned alongside RS232 in 21% (429) of relevant job posts

RS232 Complementary Technologies

UART

UART is the underlying hardware that implements the RS232 protocol. RS232 is a standard that often utilizes a UART for serial communication.

mentioned alongside RS232 in 4% (1.3k) of relevant job posts

Modbus

Modbus is a serial communication protocol often used over RS232 (as well as RS485 and TCP/IP). It defines the message structure and communication methods.

mentioned alongside RS232 in 3% (1.4k) of relevant job posts