RS-485 Insights

What is RS-485?

RS-485 is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems. It is commonly used in industrial automation, building automation, and other applications requiring reliable, long-distance communication between multiple devices. It supports data rates up to 10 Mbps and distances up to 1200 meters.

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What other technologies are related to RS-485?

RS-485 Competitor Technologies

RS-232

A serial communication standard that, like RS-485, is used for data transmission, but with shorter distances and different electrical characteristics.

mentioned alongside RS-485 in 42% (2.2k) of relevant job posts

RS-422

Another serial communication standard similar to RS-485, offering better noise immunity and longer distances than RS-232, but with different multi-drop capabilities.

mentioned alongside RS-485 in 40% (940) of relevant job posts

I2C

A serial communication protocol often used for short-distance, on-board communication between integrated circuits. It can be a competitor in some embedded applications but typically slower and shorter range.

mentioned alongside RS-485 in 3% (1.6k) of relevant job posts

SPI

A synchronous serial communication interface used for short-distance communication, typically on a PCB. It can compete with RS-485 in certain applications where speed is prioritized over distance and noise immunity.

mentioned alongside RS-485 in 3% (1.6k) of relevant job posts

ARINC 429

A data bus standard used in avionics. It's a competitor in specific application domains where its architecture and features are preferred.

mentioned alongside RS-485 in 10% (335) of relevant job posts

Ethernet

A network protocol for local area networks (LANs), offering high bandwidth and long-distance communication. It competes with RS-485 in applications requiring network connectivity.

mentioned alongside RS-485 in 2% (1.8k) of relevant job posts

CAN

A robust serial communication protocol commonly used in automotive and industrial applications. It can be a competitor where noise immunity and multi-drop capability are important.

mentioned alongside RS-485 in 2% (1.3k) of relevant job posts

MIL-STD-1553

A military standard for data communication, primarily used in aerospace applications. It can be a competitor in specialized domains.

mentioned alongside RS-485 in 8% (288) of relevant job posts