Electrical Engineering Glossary Definition for RS-422/RS-485

Definition

RS-485 and RS-422 are serial interface standards in which data is sent in a differential pair (two wires, or twisted pair cable), which allows greater distances and higher data rates than non-differential serial schemes such as RS-232. See: Differential Signaling.

RS-485 and RS-422 can be configured for full-duplex or half-duplex bus systems.

See Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards to learn about the differences between RS-232, RS-422, and RS-485.

Synonyms

• EIA-485
• RS-485
• RS-422
• RS422
• RS485
• EIA-422

See Also

• Differential Signaling
• USB
• Serial Interface
• EIA
• RS-232
• Show application notes for: "RS-422/RS-485"
• Show site-wide search results for: "RS-422/RS-485"

Find a term alphabetically:

0-9

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Comment on This Term (Corrections, Suggestions, etc.)

Suggest Another Term We Should Add