RS-422
Sign in to savethumb|368px|RS-422 network with multiple receivers
Key facts
- Fieldbus protocol.name
- RS-422
- Fieldbus protocol.standard
- TIA/EIA-422
- Fieldbus protocol.physical_media
- Twisted pair
- Fieldbus protocol.network_topology
- Point-to-point, unidirectional multidrop bus
- Fieldbus protocol.maximum_devices
- 10 (1 driver and 10 receivers)
- Fieldbus protocol.mode_of_operation
- Differential
- Fieldbus protocol.maximum_binary_rate
- 100 kbit/s – 10 Mbit/s
- Fieldbus protocol.voltage
- −6 to +6 V (maximum voltage for each line)
- Fieldbus protocol.mark1
- Negative difference
- Fieldbus protocol.space0
- Positive difference
- Fieldbus protocol.available_signals
- Tx+, Tx−, Rx+, Rx− (full duplex)
- Fieldbus protocol.connector_types
- Not specified
via Wikipedia infobox
Article
6 sectionsContents
- Standard scope
- Characteristics
- Applications
- See also
- References
- Further reading
thumb|368px|RS-422 network with multiple receivers
RS-422, also known as TIA/EIA-422, is a technical standard originated by the Electronic Industries Alliance, first issued in 1975, that specifies the electrical characteristics of a digital signaling circuit. It was meant to be the foundation of a suite of standards that would replace the older RS-232C standard with standards that offered much higher speed, better immunity from noise, and longer cable lengths. RS-422 systems can transmit data at rates as high as 10 Mbit/s, or may be sent on cables as long as at lower rates. It is closely related to RS-423, which uses the same signaling systems but on a different wiring arrangement.