Which is the best description of RS-485?

Which is the best description of RS-485?

RS-485. RS-485, also known as TIA-485(-A), EIA-485, is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems. Electrical signaling is balanced, and multipoint systems are supported. The standard is jointly published by the Telecommunications Industry Association…

What’s the difference between RS485, USB and Ethernet?

Many people are often confused when dealing with communication standards. Often, terms like ”RS-485”, ”USB” and ”Ethernet” are interchanged as if they could be switched and do the same job. But in fact, the RS-485 standard is only a physical layer standard. It defines the electrical characteristics of the transmitter and the receiver.

How many Mbit’s can a RS-485 cable transmit?

It is generally accepted that RS-485 can be used with data rates up to 10 Mbit/s or, at lower speeds, distances up to 1,200 m (4,000 ft). As a rule of thumb, the speed in bit/s multiplied by the length in metres should not exceed 10 8. Thus a 50-meter cable should not signal faster than 2 Mbit/s.

Which is a full duplex RS-422 or RS-485?

Full duplex operation. RS-485, like RS-422, can be made full-duplex by using four wires. Since RS-485 is a multi-point specification, however, this is not necessary in many cases. RS-485 and RS-422 can interoperate with certain restrictions.

When was the first edition of EIA RS-485?

The initial edition of EIA RS-485 was dated April 1983. RS-485 only specifies the electrical characteristics of the generator and the receiver: the physical layer. It does not specify or recommend any communications protocol; Other standards define the protocols for communication over an RS-485 link.

What kind of voltage does RS485 / 422 transceiver have?

Diverse portfolio of RS-485/RS-422 serial transceivers with wide supply voltage operation between 2.8V and 5.5V. Advanced features, like hot swap, enhanced fail safe and 15kV ESD protection, ensure reliable and robust data communication over long cable lengths.