RS-232
Sign in to savethumb|A DB-25 connector as described in the RS-232 standard
Key facts
- Technology standard.title
- EIA-232 Standard
- Technology standard.long_name
- Interconnection of Data Terminal Equipment with a Communications Channel
- Technology standard.image
- RS-232 POTS DTE DCE.svg
- Technology standard.caption
- Data circuit-terminating equipment (DCE) and data terminal equipment (DTE) network
- Technology standard.status
- Active
- Technology standard.version
- TIA-232-F
- Technology standard.organization
- Electronic Industries Association
- Technology standard.series
- EIA Recommended Standards
- Technology standard.related_standards
- TIA/EIA-422ITU-T/CCITT V.24ITU-T/CCITT V.28
- Technology standard.successor
- TIA/EIA-422
- Technology standard.domain
- Telecommunications, Computing, Electronics
- Fieldbus protocol.name
- RS-232 protocol
- Fieldbus protocol.governing_body
- Electronic Industries Association
- Fieldbus protocol.standard
- EIA-232
- Fieldbus protocol.network_topology
- Point-to-point, unidirectional point-to-point
- Fieldbus protocol.maximum_speed
- 20 kbit/s
- Fieldbus protocol.mode_of_operation
- Serial
- Fieldbus protocol.voltage
- 3 to 15 Vpp (maximum voltage for each line)
via Wikipedia infobox
Article
28 sectionsContents
- Scope of the standard
- {{anchor|A|B|C|D|E|F}}History
- Revisions A through C
- RS-232 Modernization and Revision D
- Telecommunications Industry Association and Revision E
- EIA Name Change and Revision F
- Post EIA Dissolution
- Limitations of the standard
- Role in modern personal computers
- {{anchor|Flow control}}Physical interface
- {{anchor|DSR}}Voltage levels
- Connectors
- Cables
- Data and control signals
- {{anchor|RI}}Ring Indicator
- RTS, CTS, and RTR
- 3-wire and 5-wire RS-232
- Seldom-used features
- Signal rate selection
- Loopback testing
- Timing signals
- Secondary channel
- Related standards
- Development tools
- See also
- References
- Further reading
- External links
thumb|A DB-25 connector as described in the RS-232 standard
In telecommunications, RS-232 or Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data. It formally defines signals connecting between a DTE (data terminal equipment) such as a computer terminal or PC, and a DCE (data circuit-terminating equipment or data communication equipment), such as a modem. The standard defines the electrical characteristics and timing of signals, the meaning of signals, and the physical size and pinout of connectors. The current version of the standard is TIA-232-F Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange, issued in 1997.